options.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <ctype.h>
   5 #include <string.h>
   6 #include <assert.h>
   7 #include <fcntl.h>
   8 #include <sys/stat.h>
   9 #include <netinet/in.h>
  10
  11 #include "fio.h"
  12 #include "verify.h"
  13 #include "parse.h"
  14 #include "lib/pattern.h"
  15 #include "options.h"
  16 #include "optgroup.h"
  17 #include "zbd.h"
  18
  19 char client_sockaddr_str[INET6_ADDRSTRLEN] = { 0 };
  20
  21 #define cb_data_to_td(data)     container_of(data, struct thread_data, o)
  22
  23 static const struct pattern_fmt_desc fmt_desc[] = {
  24         {
  25                 .fmt   = "%o",
  26                 .len   = FIO_FIELD_SIZE(struct io_u *, offset),
  27                 .paste = paste_blockoff
  28         },
  29         { }
  30 };
  31
  32 /*
  33  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  34  */
  35 static char *get_opt_postfix(const char *str)
  36 {
  37         char *p = strstr(str, ":");
  38
  39         if (!p)
  40                 return NULL;
  41
  42         p++;
  43         strip_blank_front(&p);
  44         strip_blank_end(p);
  45         return strdup(p);
  46 }
  47
  48 static bool split_parse_distr(const char *str, double *val, double *center)
  49 {
  50         char *cp, *p;
  51         bool r;
  52
  53         p = strdup(str);
  54         if (!p)
  55                 return false;
  56
  57         cp = strstr(p, ":");
  58         r = true;
  59         if (cp) {
  60                 *cp = '\0';
  61                 cp++;
  62                 r = str_to_float(cp, center, 0);
  63         }
  64         r = r && str_to_float(p, val, 0);
  65         free(p);
  66         return r;
  67 }
  68
  69 static int bs_cmp(const void *p1, const void *p2)
  70 {
  71         const struct bssplit *bsp1 = p1;
  72         const struct bssplit *bsp2 = p2;
  73
  74         return (int) bsp1->perc - (int) bsp2->perc;
  75 }
  76
  77 int split_parse_ddir(struct thread_options *o, struct split *split,
  78                             char *str, bool absolute, unsigned int max_splits)
  79 {
  80         unsigned long long perc;
  81         unsigned int i;
  82         long long val;
  83         char *fname;
  84
  85         split->nr = 0;
  86
  87         i = 0;
  88         while ((fname = strsep(&str, ":")) != NULL) {
  89                 char *perc_str;
  90
  91                 if (!strlen(fname))
  92                         break;
  93
  94                 perc_str = strstr(fname, "/");
  95                 if (perc_str) {
  96                         *perc_str = '\0';
  97                         perc_str++;
  98                         if (absolute) {
  99                                 if (str_to_decimal(perc_str, &val, 1, o, 0, 0)) {
 100                                         log_err("fio: split conversion failed\n");
 101                                         return 1;
 102                                 }
 103                                 perc = val;
 104                         } else {
 105                                 perc = atoi(perc_str);
 106                                 if (perc > 100)
 107                                         perc = 100;
 108                                 else if (!perc)
 109                                         perc = -1U;
 110                         }
 111                 } else {
 112                         if (absolute)
 113                                 perc = 0;
 114                         else
 115                                 perc = -1U;
 116                 }
 117
 118                 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
 119                         log_err("fio: split conversion failed\n");
 120                         return 1;
 121                 }
 122
 123                 split->val1[i] = val;
 124                 split->val2[i] = perc;
 125                 i++;
 126                 if (i == max_splits) {
 127                         log_err("fio: hit max of %d split entries\n", i);
 128                         break;
 129                 }
 130         }
 131
 132         split->nr = i;
 133         return 0;
 134 }
 135
 136 static int bssplit_ddir(struct thread_options *o, void *eo,
 137                         enum fio_ddir ddir, char *str, bool data)
 138 {
 139         unsigned int i, perc, perc_missing;
 140         unsigned long long max_bs, min_bs;
 141         struct split split;
 142
 143         memset(&split, 0, sizeof(split));
 144
 145         if (split_parse_ddir(o, &split, str, data, BSSPLIT_MAX))
 146                 return 1;
 147         if (!split.nr)
 148                 return 0;
 149
 150         max_bs = 0;
 151         min_bs = -1;
 152         o->bssplit[ddir] = malloc(split.nr * sizeof(struct bssplit));
 153         o->bssplit_nr[ddir] = split.nr;
 154         for (i = 0; i < split.nr; i++) {
 155                 if (split.val1[i] > max_bs)
 156                         max_bs = split.val1[i];
 157                 if (split.val1[i] < min_bs)
 158                         min_bs = split.val1[i];
 159
 160                 o->bssplit[ddir][i].bs = split.val1[i];
 161                 o->bssplit[ddir][i].perc =split.val2[i];
 162         }
 163
 164         /*
 165          * Now check if the percentages add up, and how much is missing
 166          */
 167         perc = perc_missing = 0;
 168         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 169                 struct bssplit *bsp = &o->bssplit[ddir][i];
 170
 171                 if (bsp->perc == -1U)
 172                         perc_missing++;
 173                 else
 174                         perc += bsp->perc;
 175         }
 176
 177         if (perc > 100 && perc_missing > 1) {
 178                 log_err("fio: bssplit percentages add to more than 100%%\n");
 179                 free(o->bssplit[ddir]);
 180                 o->bssplit[ddir] = NULL;
 181                 return 1;
 182         }
 183
 184         /*
 185          * If values didn't have a percentage set, divide the remains between
 186          * them.
 187          */
 188         if (perc_missing) {
 189                 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
 190                         perc = 100;
 191                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 192                         struct bssplit *bsp = &o->bssplit[ddir][i];
 193
 194                         if (bsp->perc == -1U)
 195                                 bsp->perc = (100 - perc) / perc_missing;
 196                 }
 197         }
 198
 199         o->min_bs[ddir] = min_bs;
 200         o->max_bs[ddir] = max_bs;
 201
 202         /*
 203          * now sort based on percentages, for ease of lookup
 204          */
 205         qsort(o->bssplit[ddir], o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 206         return 0;
 207 }
 208
 209 int str_split_parse(struct thread_data *td, char *str,
 210                     split_parse_fn *fn, void *eo, bool data)
 211 {
 212         char *odir, *ddir;
 213         int ret = 0;
 214
 215         odir = strchr(str, ',');
 216         if (odir) {
 217                 ddir = strchr(odir + 1, ',');
 218                 if (ddir) {
 219                         ret = fn(&td->o, eo, DDIR_TRIM, ddir + 1, data);
 220                         if (!ret)
 221                                 *ddir = '\0';
 222                 } else {
 223                         char *op;
 224
 225                         op = strdup(odir + 1);
 226                         ret = fn(&td->o, eo, DDIR_TRIM, op, data);
 227
 228                         free(op);
 229                 }
 230                 if (!ret)
 231                         ret = fn(&td->o, eo, DDIR_WRITE, odir + 1, data);
 232                 if (!ret) {
 233                         *odir = '\0';
 234                         ret = fn(&td->o, eo, DDIR_READ, str, data);
 235                 }
 236         } else {
 237                 char *op;
 238
 239                 op = strdup(str);
 240                 ret = fn(&td->o, eo, DDIR_WRITE, op, data);
 241                 free(op);
 242
 243                 if (!ret) {
 244                         op = strdup(str);
 245                         ret = fn(&td->o, eo, DDIR_TRIM, op, data);
 246                         free(op);
 247                 }
 248                 if (!ret)
 249                         ret = fn(&td->o, eo, DDIR_READ, str, data);
 250         }
 251
 252         return ret;
 253 }
 254
 255 static int fio_fdp_cmp(const void *p1, const void *p2)
 256 {
 257         const uint16_t *t1 = p1;
 258         const uint16_t *t2 = p2;
 259
 260         return *t1 - *t2;
 261 }
 262
 263 static int str_fdp_pli_cb(void *data, const char *input)
 264 {
 265         struct thread_data *td = cb_data_to_td(data);
 266         char *str, *p, *v;
 267         int i = 0;
 268
 269         p = str = strdup(input);
 270         strip_blank_front(&str);
 271         strip_blank_end(str);
 272
 273         while ((v = strsep(&str, ",")) != NULL && i < FIO_MAX_PLIS)
 274                 td->o.fdp_plis[i++] = strtoll(v, NULL, 0);
 275         free(p);
 276
 277         qsort(td->o.fdp_plis, i, sizeof(*td->o.fdp_plis), fio_fdp_cmp);
 278         td->o.fdp_nrpli = i;
 279
 280         return 0;
 281 }
 282
 283 static int str_bssplit_cb(void *data, const char *input)
 284 {
 285         struct thread_data *td = cb_data_to_td(data);
 286         char *str, *p;
 287         int ret = 0;
 288
 289         p = str = strdup(input);
 290
 291         strip_blank_front(&str);
 292         strip_blank_end(str);
 293
 294         ret = str_split_parse(td, str, bssplit_ddir, NULL, false);
 295
 296         if (parse_dryrun()) {
 297                 int i;
 298
 299                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 300                         free(td->o.bssplit[i]);
 301                         td->o.bssplit[i] = NULL;
 302                         td->o.bssplit_nr[i] = 0;
 303                 }
 304         }
 305
 306         free(p);
 307         return ret;
 308 }
 309
 310 static int parse_cmdprio_bssplit_entry(struct thread_options *o,
 311                                        struct split_prio *entry, char *str)
 312 {
 313         int matches = 0;
 314         char *bs_str = NULL;
 315         long long bs_val;
 316         unsigned int perc = 0, class, level;
 317
 318         /*
 319          * valid entry formats:
 320          * bs/ - %s/ - set perc to 0, prio to -1.
 321          * bs/perc - %s/%u - set prio to -1.
 322          * bs/perc/class/level - %s/%u/%u/%u
 323          */
 324         matches = sscanf(str, "%m[^/]/%u/%u/%u", &bs_str, &perc, &class, &level);
 325         if (matches < 1) {
 326                 log_err("fio: invalid cmdprio_bssplit format\n");
 327                 return 1;
 328         }
 329
 330         if (str_to_decimal(bs_str, &bs_val, 1, o, 0, 0)) {
 331                 log_err("fio: split conversion failed\n");
 332                 free(bs_str);
 333                 return 1;
 334         }
 335         free(bs_str);
 336
 337         entry->bs = bs_val;
 338         entry->perc = min(perc, 100u);
 339         entry->prio = -1;
 340         switch (matches) {
 341         case 1: /* bs/ case */
 342         case 2: /* bs/perc case */
 343                 break;
 344         case 4: /* bs/perc/class/level case */
 345                 class = min(class, (unsigned int) IOPRIO_MAX_PRIO_CLASS);
 346                 level = min(level, (unsigned int) IOPRIO_MAX_PRIO);
 347                 entry->prio = ioprio_value(class, level);
 348                 break;
 349         default:
 350                 log_err("fio: invalid cmdprio_bssplit format\n");
 351                 return 1;
 352         }
 353
 354         return 0;
 355 }
 356
 357 /*
 358  * Returns a negative integer if the first argument should be before the second
 359  * argument in the sorted list. A positive integer if the first argument should
 360  * be after the second argument in the sorted list. A zero if they are equal.
 361  */
 362 static int fio_split_prio_cmp(const void *p1, const void *p2)
 363 {
 364         const struct split_prio *tmp1 = p1;
 365         const struct split_prio *tmp2 = p2;
 366
 367         if (tmp1->bs > tmp2->bs)
 368                 return 1;
 369         if (tmp1->bs < tmp2->bs)
 370                 return -1;
 371         return 0;
 372 }
 373
 374 int split_parse_prio_ddir(struct thread_options *o, struct split_prio **entries,
 375                           int *nr_entries, char *str)
 376 {
 377         struct split_prio *tmp_entries;
 378         unsigned int nr_bssplits;
 379         char *str_cpy, *p, *fname;
 380
 381         /* strsep modifies the string, dup it so that we can use strsep twice */
 382         p = str_cpy = strdup(str);
 383         if (!p)
 384                 return 1;
 385
 386         nr_bssplits = 0;
 387         while ((fname = strsep(&str_cpy, ":")) != NULL) {
 388                 if (!strlen(fname))
 389                         break;
 390                 nr_bssplits++;
 391         }
 392         free(p);
 393
 394         if (nr_bssplits > BSSPLIT_MAX) {
 395                 log_err("fio: too many cmdprio_bssplit entries\n");
 396                 return 1;
 397         }
 398
 399         tmp_entries = calloc(nr_bssplits, sizeof(*tmp_entries));
 400         if (!tmp_entries)
 401                 return 1;
 402
 403         nr_bssplits = 0;
 404         while ((fname = strsep(&str, ":")) != NULL) {
 405                 struct split_prio *entry;
 406
 407                 if (!strlen(fname))
 408                         break;
 409
 410                 entry = &tmp_entries[nr_bssplits];
 411
 412                 if (parse_cmdprio_bssplit_entry(o, entry, fname)) {
 413                         log_err("fio: failed to parse cmdprio_bssplit entry\n");
 414                         free(tmp_entries);
 415                         return 1;
 416                 }
 417
 418                 /* skip zero perc entries, they provide no useful information */
 419                 if (entry->perc)
 420                         nr_bssplits++;
 421         }
 422
 423         qsort(tmp_entries, nr_bssplits, sizeof(*tmp_entries),
 424               fio_split_prio_cmp);
 425
 426         *entries = tmp_entries;
 427         *nr_entries = nr_bssplits;
 428
 429         return 0;
 430 }
 431
 432 static int str2error(char *str)
 433 {
 434         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
 435                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
 436                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
 437                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
 438                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
 439                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
 440                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
 441                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
 442         int i = 0, num = sizeof(err) / sizeof(char *);
 443
 444         while (i < num) {
 445                 if (!strcmp(err[i], str))
 446                         return i + 1;
 447                 i++;
 448         }
 449         return 0;
 450 }
 451
 452 static int ignore_error_type(struct thread_data *td, enum error_type_bit etype,
 453                                 char *str)
 454 {
 455         unsigned int i;
 456         int *error;
 457         char *fname;
 458
 459         if (etype >= ERROR_TYPE_CNT) {
 460                 log_err("Illegal error type\n");
 461                 return 1;
 462         }
 463
 464         td->o.ignore_error_nr[etype] = 4;
 465         error = calloc(4, sizeof(int));
 466
 467         i = 0;
 468         while ((fname = strsep(&str, ":")) != NULL) {
 469
 470                 if (!strlen(fname))
 471                         break;
 472
 473                 /*
 474                  * grow struct buffer, if needed
 475                  */
 476                 if (i == td->o.ignore_error_nr[etype]) {
 477                         td->o.ignore_error_nr[etype] <<= 1;
 478                         error = realloc(error, td->o.ignore_error_nr[etype]
 479                                                   * sizeof(int));
 480                 }
 481                 if (fname[0] == 'E') {
 482                         error[i] = str2error(fname);
 483                 } else {
 484                         error[i] = atoi(fname);
 485                         if (error[i] < 0)
 486                                 error[i] = -error[i];
 487                 }
 488                 if (!error[i]) {
 489                         log_err("Unknown error %s, please use number value\n",
 490                                   fname);
 491                         td->o.ignore_error_nr[etype] = 0;
 492                         free(error);
 493                         return 1;
 494                 }
 495                 i++;
 496         }
 497         if (i) {
 498                 td->o.continue_on_error |= 1 << etype;
 499                 td->o.ignore_error_nr[etype] = i;
 500                 td->o.ignore_error[etype] = error;
 501         } else {
 502                 td->o.ignore_error_nr[etype] = 0;
 503                 free(error);
 504         }
 505
 506         return 0;
 507
 508 }
 509
 510 static int str_replay_skip_cb(void *data, const char *input)
 511 {
 512         struct thread_data *td = cb_data_to_td(data);
 513         char *str, *p, *n;
 514         int ret = 0;
 515
 516         if (parse_dryrun())
 517                 return 0;
 518
 519         p = str = strdup(input);
 520
 521         strip_blank_front(&str);
 522         strip_blank_end(str);
 523
 524         while (p) {
 525                 n = strchr(p, ',');
 526                 if (n)
 527                         *n++ = '\0';
 528                 if (!strcmp(p, "read"))
 529                         td->o.replay_skip |= 1u << DDIR_READ;
 530                 else if (!strcmp(p, "write"))
 531                         td->o.replay_skip |= 1u << DDIR_WRITE;
 532                 else if (!strcmp(p, "trim"))
 533                         td->o.replay_skip |= 1u << DDIR_TRIM;
 534                 else if (!strcmp(p, "sync"))
 535                         td->o.replay_skip |= 1u << DDIR_SYNC;
 536                 else {
 537                         log_err("Unknown skip type: %s\n", p);
 538                         ret = 1;
 539                         break;
 540                 }
 541                 p = n;
 542         }
 543         free(str);
 544         return ret;
 545 }
 546
 547 static int str_ignore_error_cb(void *data, const char *input)
 548 {
 549         struct thread_data *td = cb_data_to_td(data);
 550         char *str, *p, *n;
 551         int ret = 1;
 552         enum error_type_bit type = 0;
 553
 554         if (parse_dryrun())
 555                 return 0;
 556
 557         p = str = strdup(input);
 558
 559         strip_blank_front(&str);
 560         strip_blank_end(str);
 561
 562         while (p) {
 563                 n = strchr(p, ',');
 564                 if (n)
 565                         *n++ = '\0';
 566                 ret = ignore_error_type(td, type, p);
 567                 if (ret)
 568                         break;
 569                 p = n;
 570                 type++;
 571         }
 572         free(str);
 573         return ret;
 574 }
 575
 576 static int str_rw_cb(void *data, const char *str)
 577 {
 578         struct thread_data *td = cb_data_to_td(data);
 579         struct thread_options *o = &td->o;
 580         char *nr;
 581
 582         if (parse_dryrun())
 583                 return 0;
 584
 585         o->ddir_seq_nr = 1;
 586         o->ddir_seq_add = 0;
 587
 588         nr = get_opt_postfix(str);
 589         if (!nr)
 590                 return 0;
 591
 592         if (td_random(td))
 593                 o->ddir_seq_nr = atoi(nr);
 594         else {
 595                 long long val;
 596
 597                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
 598                         log_err("fio: rw postfix parsing failed\n");
 599                         free(nr);
 600                         return 1;
 601                 }
 602
 603                 o->ddir_seq_add = val;
 604         }
 605
 606         free(nr);
 607         return 0;
 608 }
 609
 610 static int str_mem_cb(void *data, const char *mem)
 611 {
 612         struct thread_data *td = cb_data_to_td(data);
 613
 614         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP ||
 615             td->o.mem_type == MEM_MMAPSHARED)
 616                 td->o.mmapfile = get_opt_postfix(mem);
 617
 618         return 0;
 619 }
 620
 621 static int fio_clock_source_cb(void *data, const char *str)
 622 {
 623         struct thread_data *td = cb_data_to_td(data);
 624
 625         fio_clock_source = td->o.clocksource;
 626         fio_clock_source_set = 1;
 627         fio_clock_init();
 628         return 0;
 629 }
 630
 631 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 632 {
 633         struct thread_data *td = cb_data_to_td(data);
 634
 635         td->o.rwmix[DDIR_READ] = *val;
 636         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 637         return 0;
 638 }
 639
 640 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 641 {
 642         struct thread_data *td = cb_data_to_td(data);
 643
 644         td->o.rwmix[DDIR_WRITE] = *val;
 645         td->o.rwmix[DDIR_READ] = 100 - *val;
 646         return 0;
 647 }
 648
 649 static int str_exitall_cb(void)
 650 {
 651         exitall_on_terminate = true;
 652         return 0;
 653 }
 654
 655 #ifdef FIO_HAVE_CPU_AFFINITY
 656 int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
 657 {
 658         unsigned int i, index, cpus_in_mask;
 659         const long max_cpu = cpus_configured();
 660
 661         cpus_in_mask = fio_cpu_count(mask);
 662         if (!cpus_in_mask)
 663                 return 0;
 664
 665         cpu_index = cpu_index % cpus_in_mask;
 666
 667         index = 0;
 668         for (i = 0; i < max_cpu; i++) {
 669                 if (!fio_cpu_isset(mask, i))
 670                         continue;
 671
 672                 if (cpu_index != index)
 673                         fio_cpu_clear(mask, i);
 674
 675                 index++;
 676         }
 677
 678         return fio_cpu_count(mask);
 679 }
 680
 681 static int str_cpumask_cb(void *data, unsigned long long *val)
 682 {
 683         struct thread_data *td = cb_data_to_td(data);
 684         unsigned int i;
 685         long max_cpu;
 686         int ret;
 687
 688         if (parse_dryrun())
 689                 return 0;
 690
 691         ret = fio_cpuset_init(&td->o.cpumask);
 692         if (ret < 0) {
 693                 log_err("fio: cpuset_init failed\n");
 694                 td_verror(td, ret, "fio_cpuset_init");
 695                 return 1;
 696         }
 697
 698         max_cpu = cpus_configured();
 699
 700         for (i = 0; i < sizeof(int) * 8; i++) {
 701                 if ((1 << i) & *val) {
 702                         if (i >= max_cpu) {
 703                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 704                                                                 max_cpu - 1);
 705                                 return 1;
 706                         }
 707                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 708                         fio_cpu_set(&td->o.cpumask, i);
 709                 }
 710         }
 711
 712         return 0;
 713 }
 714
 715 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 716                             const char *input)
 717 {
 718         char *cpu, *str, *p;
 719         long max_cpu;
 720         int ret = 0;
 721
 722         ret = fio_cpuset_init(mask);
 723         if (ret < 0) {
 724                 log_err("fio: cpuset_init failed\n");
 725                 td_verror(td, ret, "fio_cpuset_init");
 726                 return 1;
 727         }
 728
 729         p = str = strdup(input);
 730
 731         strip_blank_front(&str);
 732         strip_blank_end(str);
 733
 734         max_cpu = cpus_configured();
 735
 736         while ((cpu = strsep(&str, ",")) != NULL) {
 737                 char *str2, *cpu2;
 738                 int icpu, icpu2;
 739
 740                 if (!strlen(cpu))
 741                         break;
 742
 743                 str2 = cpu;
 744                 icpu2 = -1;
 745                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 746                         if (!strlen(cpu2))
 747                                 break;
 748
 749                         icpu2 = atoi(cpu2);
 750                 }
 751
 752                 icpu = atoi(cpu);
 753                 if (icpu2 == -1)
 754                         icpu2 = icpu;
 755                 while (icpu <= icpu2) {
 756                         if (icpu >= FIO_MAX_CPUS) {
 757                                 log_err("fio: your OS only supports up to"
 758                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 759                                 ret = 1;
 760                                 break;
 761                         }
 762                         if (icpu >= max_cpu) {
 763                                 log_err("fio: CPU %d too large (max=%ld)\n",
 764                                                         icpu, max_cpu - 1);
 765                                 ret = 1;
 766                                 break;
 767                         }
 768
 769                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 770                         fio_cpu_set(mask, icpu);
 771                         icpu++;
 772                 }
 773                 if (ret)
 774                         break;
 775         }
 776
 777         free(p);
 778         return ret;
 779 }
 780
 781 static int str_cpus_allowed_cb(void *data, const char *input)
 782 {
 783         struct thread_data *td = cb_data_to_td(data);
 784
 785         if (parse_dryrun())
 786                 return 0;
 787
 788         return set_cpus_allowed(td, &td->o.cpumask, input);
 789 }
 790
 791 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 792 {
 793         struct thread_data *td = cb_data_to_td(data);
 794
 795         if (parse_dryrun())
 796                 return 0;
 797
 798         return set_cpus_allowed(td, &td->o.verify_cpumask, input);
 799 }
 800
 801 #ifdef CONFIG_ZLIB
 802 static int str_log_cpus_allowed_cb(void *data, const char *input)
 803 {
 804         struct thread_data *td = cb_data_to_td(data);
 805
 806         if (parse_dryrun())
 807                 return 0;
 808
 809         return set_cpus_allowed(td, &td->o.log_gz_cpumask, input);
 810 }
 811 #endif /* CONFIG_ZLIB */
 812
 813 #endif /* FIO_HAVE_CPU_AFFINITY */
 814
 815 #ifdef CONFIG_LIBNUMA
 816 static int str_numa_cpunodes_cb(void *data, char *input)
 817 {
 818         struct thread_data *td = cb_data_to_td(data);
 819         struct bitmask *verify_bitmask;
 820
 821         if (parse_dryrun())
 822                 return 0;
 823
 824         /* numa_parse_nodestring() parses a character string list
 825          * of nodes into a bit mask. The bit mask is allocated by
 826          * numa_allocate_nodemask(), so it should be freed by
 827          * numa_free_nodemask().
 828          */
 829         verify_bitmask = numa_parse_nodestring(input);
 830         if (verify_bitmask == NULL) {
 831                 log_err("fio: numa_parse_nodestring failed\n");
 832                 td_verror(td, 1, "str_numa_cpunodes_cb");
 833                 return 1;
 834         }
 835         numa_free_nodemask(verify_bitmask);
 836
 837         td->o.numa_cpunodes = strdup(input);
 838         return 0;
 839 }
 840
 841 static int str_numa_mpol_cb(void *data, char *input)
 842 {
 843         struct thread_data *td = cb_data_to_td(data);
 844         const char * const policy_types[] =
 845                 { "default", "prefer", "bind", "interleave", "local", NULL };
 846         int i;
 847         char *nodelist;
 848         struct bitmask *verify_bitmask;
 849
 850         if (parse_dryrun())
 851                 return 0;
 852
 853         nodelist = strchr(input, ':');
 854         if (nodelist) {
 855                 /* NUL-terminate mode */
 856                 *nodelist++ = '\0';
 857         }
 858
 859         for (i = 0; i <= MPOL_LOCAL; i++) {
 860                 if (!strcmp(input, policy_types[i])) {
 861                         td->o.numa_mem_mode = i;
 862                         break;
 863                 }
 864         }
 865         if (i > MPOL_LOCAL) {
 866                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
 867                 goto out;
 868         }
 869
 870         switch (td->o.numa_mem_mode) {
 871         case MPOL_PREFERRED:
 872                 /*
 873                  * Insist on a nodelist of one node only
 874                  */
 875                 if (nodelist) {
 876                         char *rest = nodelist;
 877                         while (isdigit(*rest))
 878                                 rest++;
 879                         if (*rest) {
 880                                 log_err("fio: one node only for \'prefer\'\n");
 881                                 goto out;
 882                         }
 883                 } else {
 884                         log_err("fio: one node is needed for \'prefer\'\n");
 885                         goto out;
 886                 }
 887                 break;
 888         case MPOL_INTERLEAVE:
 889                 /*
 890                  * Default to online nodes with memory if no nodelist
 891                  */
 892                 if (!nodelist)
 893                         nodelist = strdup("all");
 894                 break;
 895         case MPOL_LOCAL:
 896         case MPOL_DEFAULT:
 897                 /*
 898                  * Don't allow a nodelist
 899                  */
 900                 if (nodelist) {
 901                         log_err("fio: NO nodelist for \'local\'\n");
 902                         goto out;
 903                 }
 904                 break;
 905         case MPOL_BIND:
 906                 /*
 907                  * Insist on a nodelist
 908                  */
 909                 if (!nodelist) {
 910                         log_err("fio: a nodelist is needed for \'bind\'\n");
 911                         goto out;
 912                 }
 913                 break;
 914         }
 915
 916
 917         /* numa_parse_nodestring() parses a character string list
 918          * of nodes into a bit mask. The bit mask is allocated by
 919          * numa_allocate_nodemask(), so it should be freed by
 920          * numa_free_nodemask().
 921          */
 922         switch (td->o.numa_mem_mode) {
 923         case MPOL_PREFERRED:
 924                 td->o.numa_mem_prefer_node = atoi(nodelist);
 925                 break;
 926         case MPOL_INTERLEAVE:
 927         case MPOL_BIND:
 928                 verify_bitmask = numa_parse_nodestring(nodelist);
 929                 if (verify_bitmask == NULL) {
 930                         log_err("fio: numa_parse_nodestring failed\n");
 931                         td_verror(td, 1, "str_numa_memnodes_cb");
 932                         return 1;
 933                 }
 934                 td->o.numa_memnodes = strdup(nodelist);
 935                 numa_free_nodemask(verify_bitmask);
 936
 937                 break;
 938         case MPOL_LOCAL:
 939         case MPOL_DEFAULT:
 940         default:
 941                 break;
 942         }
 943
 944         return 0;
 945 out:
 946         return 1;
 947 }
 948 #endif
 949
 950 static int str_fst_cb(void *data, const char *str)
 951 {
 952         struct thread_data *td = cb_data_to_td(data);
 953         double val;
 954         double center = -1;
 955         bool done = false;
 956         char *nr;
 957
 958         td->file_service_nr = 1;
 959
 960         switch (td->o.file_service_type) {
 961         case FIO_FSERVICE_RANDOM:
 962         case FIO_FSERVICE_RR:
 963         case FIO_FSERVICE_SEQ:
 964                 nr = get_opt_postfix(str);
 965                 if (nr) {
 966                         td->file_service_nr = atoi(nr);
 967                         free(nr);
 968                 }
 969                 done = true;
 970                 break;
 971         case FIO_FSERVICE_ZIPF:
 972                 val = FIO_DEF_ZIPF;
 973                 break;
 974         case FIO_FSERVICE_PARETO:
 975                 val = FIO_DEF_PARETO;
 976                 break;
 977         case FIO_FSERVICE_GAUSS:
 978                 val = 0.0;
 979                 break;
 980         default:
 981                 log_err("fio: bad file service type: %d\n", td->o.file_service_type);
 982                 return 1;
 983         }
 984
 985         if (done)
 986                 return 0;
 987
 988         nr = get_opt_postfix(str);
 989         if (nr && !split_parse_distr(nr, &val, &center)) {
 990                 log_err("fio: file service type random postfix parsing failed\n");
 991                 free(nr);
 992                 return 1;
 993         }
 994
 995         free(nr);
 996
 997         if (center != -1 && (center < 0.00 || center > 1.00)) {
 998                 log_err("fio: distribution center out of range (0 <= center <= 1.0)\n");
 999                 return 1;
1000         }
1001         td->random_center = center;
1002
1003         switch (td->o.file_service_type) {
1004         case FIO_FSERVICE_ZIPF:
1005                 if (val == 1.00) {
1006                         log_err("fio: zipf theta must be different than 1.0\n");
1007                         return 1;
1008                 }
1009                 if (parse_dryrun())
1010                         return 0;
1011                 td->zipf_theta = val;
1012                 break;
1013         case FIO_FSERVICE_PARETO:
1014                 if (val <= 0.00 || val >= 1.00) {
1015                           log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1016                           return 1;
1017                 }
1018                 if (parse_dryrun())
1019                         return 0;
1020                 td->pareto_h = val;
1021                 break;
1022         case FIO_FSERVICE_GAUSS:
1023                 if (val < 0.00 || val >= 100.00) {
1024                           log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1025                           return 1;
1026                 }
1027                 if (parse_dryrun())
1028                         return 0;
1029                 td->gauss_dev = val;
1030                 break;
1031         }
1032
1033         return 0;
1034 }
1035
1036 #ifdef CONFIG_SYNC_FILE_RANGE
1037 static int str_sfr_cb(void *data, const char *str)
1038 {
1039         struct thread_data *td = cb_data_to_td(data);
1040         char *nr = get_opt_postfix(str);
1041
1042         td->sync_file_range_nr = 1;
1043         if (nr) {
1044                 td->sync_file_range_nr = atoi(nr);
1045                 free(nr);
1046         }
1047
1048         return 0;
1049 }
1050 #endif
1051
1052 static int zone_split_ddir(struct thread_options *o, void *eo,
1053                            enum fio_ddir ddir, char *str, bool absolute)
1054 {
1055         unsigned int i, perc, perc_missing, sperc, sperc_missing;
1056         struct split split;
1057
1058         memset(&split, 0, sizeof(split));
1059
1060         if (split_parse_ddir(o, &split, str, absolute, ZONESPLIT_MAX))
1061                 return 1;
1062         if (!split.nr)
1063                 return 0;
1064
1065         o->zone_split[ddir] = malloc(split.nr * sizeof(struct zone_split));
1066         o->zone_split_nr[ddir] = split.nr;
1067         for (i = 0; i < split.nr; i++) {
1068                 o->zone_split[ddir][i].access_perc = split.val1[i];
1069                 if (absolute)
1070                         o->zone_split[ddir][i].size = split.val2[i];
1071                 else
1072                         o->zone_split[ddir][i].size_perc = split.val2[i];
1073         }
1074
1075         /*
1076          * Now check if the percentages add up, and how much is missing
1077          */
1078         perc = perc_missing = 0;
1079         sperc = sperc_missing = 0;
1080         for (i = 0; i < o->zone_split_nr[ddir]; i++) {
1081                 struct zone_split *zsp = &o->zone_split[ddir][i];
1082
1083                 if (zsp->access_perc == (uint8_t) -1U)
1084                         perc_missing++;
1085                 else
1086                         perc += zsp->access_perc;
1087
1088                 if (!absolute) {
1089                         if (zsp->size_perc == (uint8_t) -1U)
1090                                 sperc_missing++;
1091                         else
1092                                 sperc += zsp->size_perc;
1093                 }
1094         }
1095
1096         if (perc > 100 || sperc > 100) {
1097                 log_err("fio: zone_split percentages add to more than 100%%\n");
1098                 free(o->zone_split[ddir]);
1099                 o->zone_split[ddir] = NULL;
1100                 return 1;
1101         }
1102         if (perc < 100) {
1103                 log_err("fio: access percentage don't add up to 100 for zoned "
1104                         "random distribution (got=%u)\n", perc);
1105                 free(o->zone_split[ddir]);
1106                 o->zone_split[ddir] = NULL;
1107                 return 1;
1108         }
1109
1110         /*
1111          * If values didn't have a percentage set, divide the remains between
1112          * them.
1113          */
1114         if (perc_missing) {
1115                 if (perc_missing == 1 && o->zone_split_nr[ddir] == 1)
1116                         perc = 100;
1117                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
1118                         struct zone_split *zsp = &o->zone_split[ddir][i];
1119
1120                         if (zsp->access_perc == (uint8_t) -1U)
1121                                 zsp->access_perc = (100 - perc) / perc_missing;
1122                 }
1123         }
1124         if (sperc_missing) {
1125                 if (sperc_missing == 1 && o->zone_split_nr[ddir] == 1)
1126                         sperc = 100;
1127                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
1128                         struct zone_split *zsp = &o->zone_split[ddir][i];
1129
1130                         if (zsp->size_perc == (uint8_t) -1U)
1131                                 zsp->size_perc = (100 - sperc) / sperc_missing;
1132                 }
1133         }
1134
1135         return 0;
1136 }
1137
1138 static int parse_zoned_distribution(struct thread_data *td, const char *input,
1139                                     bool absolute)
1140 {
1141         const char *pre = absolute ? "zoned_abs:" : "zoned:";
1142         char *str, *p;
1143         int i, ret = 0;
1144
1145         p = str = strdup(input);
1146
1147         strip_blank_front(&str);
1148         strip_blank_end(str);
1149
1150         /* We expect it to start like that, bail if not */
1151         if (strncmp(str, pre, strlen(pre))) {
1152                 log_err("fio: mismatch in zoned input <%s>\n", str);
1153                 free(p);
1154                 return 1;
1155         }
1156         str += strlen(pre);
1157
1158         ret = str_split_parse(td, str, zone_split_ddir, NULL, absolute);
1159
1160         free(p);
1161
1162         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1163                 int j;
1164
1165                 dprint(FD_PARSE, "zone ddir %d (nr=%u): \n", i, td->o.zone_split_nr[i]);
1166
1167                 for (j = 0; j < td->o.zone_split_nr[i]; j++) {
1168                         struct zone_split *zsp = &td->o.zone_split[i][j];
1169
1170                         if (absolute) {
1171                                 dprint(FD_PARSE, "\t%d: %u/%llu\n", j,
1172                                                 zsp->access_perc,
1173                                                 (unsigned long long) zsp->size);
1174                         } else {
1175                                 dprint(FD_PARSE, "\t%d: %u/%u\n", j,
1176                                                 zsp->access_perc,
1177                                                 zsp->size_perc);
1178                         }
1179                 }
1180         }
1181
1182         if (parse_dryrun()) {
1183                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1184                         free(td->o.zone_split[i]);
1185                         td->o.zone_split[i] = NULL;
1186                         td->o.zone_split_nr[i] = 0;
1187                 }
1188
1189                 return ret;
1190         }
1191
1192         if (ret) {
1193                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1194                         td->o.zone_split_nr[i] = 0;
1195         }
1196
1197         return ret;
1198 }
1199
1200 static int str_random_distribution_cb(void *data, const char *str)
1201 {
1202         struct thread_data *td = cb_data_to_td(data);
1203         double val;
1204         double center = -1;
1205         char *nr;
1206
1207         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1208                 val = FIO_DEF_ZIPF;
1209         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1210                 val = FIO_DEF_PARETO;
1211         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1212                 val = 0.0;
1213         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
1214                 return parse_zoned_distribution(td, str, false);
1215         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
1216                 return parse_zoned_distribution(td, str, true);
1217         else
1218                 return 0;
1219
1220         nr = get_opt_postfix(str);
1221         if (nr && !split_parse_distr(nr, &val, &center)) {
1222                 log_err("fio: random postfix parsing failed\n");
1223                 free(nr);
1224                 return 1;
1225         }
1226
1227         free(nr);
1228
1229         if (center != -1 && (center < 0.00 || center > 1.00)) {
1230                 log_err("fio: distribution center out of range (0 <= center <= 1.0)\n");
1231                 return 1;
1232         }
1233         td->o.random_center.u.f = center;
1234
1235         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
1236                 if (val == 1.00) {
1237                         log_err("fio: zipf theta must different than 1.0\n");
1238                         return 1;
1239                 }
1240                 if (parse_dryrun())
1241                         return 0;
1242                 td->o.zipf_theta.u.f = val;
1243         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
1244                 if (val <= 0.00 || val >= 1.00) {
1245                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1246                         return 1;
1247                 }
1248                 if (parse_dryrun())
1249                         return 0;
1250                 td->o.pareto_h.u.f = val;
1251         } else {
1252                 if (val < 0.00 || val >= 100.0) {
1253                         log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1254                         return 1;
1255                 }
1256                 if (parse_dryrun())
1257                         return 0;
1258                 td->o.gauss_dev.u.f = val;
1259         }
1260
1261         return 0;
1262 }
1263
1264 static int str_steadystate_cb(void *data, const char *str)
1265 {
1266         struct thread_data *td = cb_data_to_td(data);
1267         double val;
1268         char *nr;
1269         char *pct;
1270         long long ll;
1271
1272         if (td->o.ss_state != FIO_SS_IOPS && td->o.ss_state != FIO_SS_IOPS_SLOPE &&
1273             td->o.ss_state != FIO_SS_BW && td->o.ss_state != FIO_SS_BW_SLOPE) {
1274                 /* should be impossible to get here */
1275                 log_err("fio: unknown steady state criterion\n");
1276                 return 1;
1277         }
1278
1279         nr = get_opt_postfix(str);
1280         if (!nr) {
1281                 log_err("fio: steadystate threshold must be specified in addition to criterion\n");
1282                 free(nr);
1283                 return 1;
1284         }
1285
1286         /* ENHANCEMENT Allow fio to understand size=10.2% and use here */
1287         pct = strstr(nr, "%");
1288         if (pct) {
1289                 *pct = '\0';
1290                 strip_blank_end(nr);
1291                 if (!str_to_float(nr, &val, 0)) {
1292                         log_err("fio: could not parse steadystate threshold percentage\n");
1293                         free(nr);
1294                         return 1;
1295                 }
1296
1297                 dprint(FD_PARSE, "set steady state threshold to %f%%\n", val);
1298                 free(nr);
1299                 if (parse_dryrun())
1300                         return 0;
1301
1302                 td->o.ss_state |= FIO_SS_PCT;
1303                 td->o.ss_limit.u.f = val;
1304         } else if (td->o.ss_state & FIO_SS_IOPS) {
1305                 if (!str_to_float(nr, &val, 0)) {
1306                         log_err("fio: steadystate IOPS threshold postfix parsing failed\n");
1307                         free(nr);
1308                         return 1;
1309                 }
1310
1311                 dprint(FD_PARSE, "set steady state IOPS threshold to %f\n", val);
1312                 free(nr);
1313                 if (parse_dryrun())
1314                         return 0;
1315
1316                 td->o.ss_limit.u.f = val;
1317         } else {        /* bandwidth criterion */
1318                 if (str_to_decimal(nr, &ll, 1, td, 0, 0)) {
1319                         log_err("fio: steadystate BW threshold postfix parsing failed\n");
1320                         free(nr);
1321                         return 1;
1322                 }
1323
1324                 dprint(FD_PARSE, "set steady state BW threshold to %lld\n", ll);
1325                 free(nr);
1326                 if (parse_dryrun())
1327                         return 0;
1328
1329                 td->o.ss_limit.u.f = (double) ll;
1330         }
1331
1332         td->ss.state = td->o.ss_state;
1333         return 0;
1334 }
1335
1336 /*
1337  * Return next name in the string. Files are separated with ':'. If the ':'
1338  * is escaped with a '\', then that ':' is part of the filename and does not
1339  * indicate a new file.
1340  */
1341 char *get_next_str(char **ptr)
1342 {
1343         char *str = *ptr;
1344         char *p, *start;
1345
1346         if (!str || !strlen(str))
1347                 return NULL;
1348
1349         start = str;
1350         do {
1351                 /*
1352                  * No colon, we are done
1353                  */
1354                 p = strchr(str, ':');
1355                 if (!p) {
1356                         *ptr = NULL;
1357                         break;
1358                 }
1359
1360                 /*
1361                  * We got a colon, but it's the first character. Skip and
1362                  * continue
1363                  */
1364                 if (p == start) {
1365                         str = ++start;
1366                         continue;
1367                 }
1368
1369                 if (*(p - 1) != '\\') {
1370                         *p = '\0';
1371                         *ptr = p + 1;
1372                         break;
1373                 }
1374
1375                 memmove(p - 1, p, strlen(p) + 1);
1376                 str = p;
1377         } while (1);
1378
1379         return start;
1380 }
1381
1382
1383 int get_max_str_idx(char *input)
1384 {
1385         unsigned int cur_idx;
1386         char *str, *p;
1387
1388         p = str = strdup(input);
1389         for (cur_idx = 0; ; cur_idx++)
1390                 if (get_next_str(&str) == NULL)
1391                         break;
1392
1393         free(p);
1394         return cur_idx;
1395 }
1396
1397 /*
1398  * Returns the directory at the index, indexes > entries will be
1399  * assigned via modulo division of the index
1400  */
1401 int set_name_idx(char *target, size_t tlen, char *input, int index,
1402                  bool unique_filename)
1403 {
1404         unsigned int cur_idx;
1405         int len;
1406         char *fname, *str, *p;
1407
1408         p = str = strdup(input);
1409
1410         index %= get_max_str_idx(input);
1411         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1412                 fname = get_next_str(&str);
1413
1414         if (client_sockaddr_str[0] && unique_filename) {
1415                 len = snprintf(target, tlen, "%s/%s.", fname,
1416                                 client_sockaddr_str);
1417         } else
1418                 len = snprintf(target, tlen, "%s%c", fname,
1419                                 FIO_OS_PATH_SEPARATOR);
1420
1421         target[tlen - 1] = '\0';
1422         free(p);
1423
1424         return len;
1425 }
1426
1427 char* get_name_by_idx(char *input, int index)
1428 {
1429         unsigned int cur_idx;
1430         char *fname, *str, *p;
1431
1432         p = str = strdup(input);
1433
1434         index %= get_max_str_idx(input);
1435         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1436                 fname = get_next_str(&str);
1437
1438         fname = strdup(fname);
1439         free(p);
1440
1441         return fname;
1442 }
1443
1444 static int str_filename_cb(void *data, const char *input)
1445 {
1446         struct thread_data *td = cb_data_to_td(data);
1447         char *fname, *str, *p;
1448
1449         p = str = strdup(input);
1450
1451         strip_blank_front(&str);
1452         strip_blank_end(str);
1453
1454         /*
1455          * Ignore what we may already have from nrfiles option.
1456          */
1457         if (!td->files_index)
1458                 td->o.nr_files = 0;
1459
1460         while ((fname = get_next_str(&str)) != NULL) {
1461                 if (!strlen(fname))
1462                         break;
1463                 add_file(td, fname, 0, 1);
1464         }
1465
1466         free(p);
1467         return 0;
1468 }
1469
1470 static int str_directory_cb(void *data, const char fio_unused *unused)
1471 {
1472         struct thread_data *td = cb_data_to_td(data);
1473         struct stat sb;
1474         char *dirname, *str, *p;
1475         int ret = 0;
1476
1477         if (parse_dryrun())
1478                 return 0;
1479
1480         p = str = strdup(td->o.directory);
1481         while ((dirname = get_next_str(&str)) != NULL) {
1482                 if (lstat(dirname, &sb) < 0) {
1483                         ret = errno;
1484
1485                         log_err("fio: %s is not a directory\n", dirname);
1486                         td_verror(td, ret, "lstat");
1487                         goto out;
1488                 }
1489                 if (!S_ISDIR(sb.st_mode)) {
1490                         log_err("fio: %s is not a directory\n", dirname);
1491                         ret = 1;
1492                         goto out;
1493                 }
1494         }
1495
1496 out:
1497         free(p);
1498         return ret;
1499 }
1500
1501 static int str_opendir_cb(void *data, const char fio_unused *str)
1502 {
1503         struct thread_data *td = cb_data_to_td(data);
1504
1505         if (parse_dryrun())
1506                 return 0;
1507
1508         if (!td->files_index)
1509                 td->o.nr_files = 0;
1510
1511         return add_dir_files(td, td->o.opendir);
1512 }
1513
1514 static int str_buffer_pattern_cb(void *data, const char *input)
1515 {
1516         struct thread_data *td = cb_data_to_td(data);
1517         int ret;
1518
1519         /* FIXME: for now buffer pattern does not support formats */
1520         ret = parse_and_fill_pattern_alloc(input, strlen(input),
1521                                 &td->o.buffer_pattern, NULL, NULL, NULL);
1522         if (ret < 0)
1523                 return 1;
1524
1525         assert(ret != 0);
1526         td->o.buffer_pattern_bytes = ret;
1527
1528         /*
1529          * If this job is doing any reading or has compression set,
1530          * ensure that we refill buffers for writes or we could be
1531          * invalidating the pattern through reads.
1532          */
1533         if (!td->o.compress_percentage && !td_read(td))
1534                 td->o.refill_buffers = 0;
1535         else
1536                 td->o.refill_buffers = 1;
1537
1538         td->o.scramble_buffers = 0;
1539         td->o.zero_buffers = 0;
1540
1541         return 0;
1542 }
1543
1544 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1545 {
1546         struct thread_data *td = cb_data_to_td(data);
1547
1548         td->flags |= TD_F_COMPRESS;
1549         td->o.compress_percentage = *il;
1550         return 0;
1551 }
1552
1553 static int str_dedupe_cb(void *data, unsigned long long *il)
1554 {
1555         struct thread_data *td = cb_data_to_td(data);
1556
1557         td->flags |= TD_F_COMPRESS;
1558         td->o.dedupe_percentage = *il;
1559         td->o.refill_buffers = 1;
1560         return 0;
1561 }
1562
1563 static int str_verify_pattern_cb(void *data, const char *input)
1564 {
1565         struct thread_data *td = cb_data_to_td(data);
1566         int ret;
1567
1568         td->o.verify_fmt_sz = FIO_ARRAY_SIZE(td->o.verify_fmt);
1569         ret = parse_and_fill_pattern_alloc(input, strlen(input),
1570                         &td->o.verify_pattern, fmt_desc, td->o.verify_fmt,
1571                         &td->o.verify_fmt_sz);
1572         if (ret < 0)
1573                 return 1;
1574
1575         assert(ret != 0);
1576         td->o.verify_pattern_bytes = ret;
1577         /*
1578          * VERIFY_* could already be set
1579          */
1580         if (!fio_option_is_set(&td->o, verify))
1581                 td->o.verify = VERIFY_PATTERN;
1582
1583         return 0;
1584 }
1585
1586 static int str_gtod_reduce_cb(void *data, int *il)
1587 {
1588         struct thread_data *td = cb_data_to_td(data);
1589         int val = *il;
1590
1591         /*
1592          * Only modify options if gtod_reduce==1
1593          * Otherwise leave settings alone.
1594          */
1595         if (val) {
1596                 td->o.disable_lat = 1;
1597                 td->o.disable_clat = 1;
1598                 td->o.disable_slat = 1;
1599                 td->o.disable_bw = 1;
1600                 td->o.clat_percentiles = 0;
1601                 td->o.lat_percentiles = 0;
1602                 td->o.slat_percentiles = 0;
1603                 td->ts_cache_mask = 63;
1604         }
1605
1606         return 0;
1607 }
1608
1609 static int str_offset_cb(void *data, unsigned long long *__val)
1610 {
1611         struct thread_data *td = cb_data_to_td(data);
1612         unsigned long long v = *__val;
1613
1614         if (parse_is_percent(v)) {
1615                 td->o.start_offset = 0;
1616                 td->o.start_offset_percent = -1ULL - v;
1617                 td->o.start_offset_nz = 0;
1618                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1619                                         td->o.start_offset_percent);
1620         } else if (parse_is_zone(v)) {
1621                 td->o.start_offset = 0;
1622                 td->o.start_offset_percent = 0;
1623                 td->o.start_offset_nz = v - ZONE_BASE_VAL;
1624         } else
1625                 td->o.start_offset = v;
1626
1627         return 0;
1628 }
1629
1630 static int str_offset_increment_cb(void *data, unsigned long long *__val)
1631 {
1632         struct thread_data *td = cb_data_to_td(data);
1633         unsigned long long v = *__val;
1634
1635         if (parse_is_percent(v)) {
1636                 td->o.offset_increment = 0;
1637                 td->o.offset_increment_percent = -1ULL - v;
1638                 td->o.offset_increment_nz = 0;
1639                 dprint(FD_PARSE, "SET offset_increment_percent %d\n",
1640                                         td->o.offset_increment_percent);
1641         } else if (parse_is_zone(v)) {
1642                 td->o.offset_increment = 0;
1643                 td->o.offset_increment_percent = 0;
1644                 td->o.offset_increment_nz = v - ZONE_BASE_VAL;
1645         } else
1646                 td->o.offset_increment = v;
1647
1648         return 0;
1649 }
1650
1651 static int str_size_cb(void *data, unsigned long long *__val)
1652 {
1653         struct thread_data *td = cb_data_to_td(data);
1654         unsigned long long v = *__val;
1655
1656         if (parse_is_percent(v)) {
1657                 td->o.size = 0;
1658                 td->o.size_percent = -1ULL - v;
1659                 dprint(FD_PARSE, "SET size_percent %d\n",
1660                                         td->o.size_percent);
1661         } else if (parse_is_zone(v)) {
1662                 td->o.size = 0;
1663                 td->o.size_percent = 0;
1664                 td->o.size_nz = v - ZONE_BASE_VAL;
1665         } else
1666                 td->o.size = v;
1667
1668         return 0;
1669 }
1670
1671 static int str_io_size_cb(void *data, unsigned long long *__val)
1672 {
1673         struct thread_data *td = cb_data_to_td(data);
1674         unsigned long long v = *__val;
1675
1676         if (parse_is_percent_uncapped(v)) {
1677                 td->o.io_size = 0;
1678                 td->o.io_size_percent = -1ULL - v;
1679                 if (td->o.io_size_percent > 100) {
1680                         log_err("fio: io_size values greater than 100%% aren't supported\n");
1681                         return 1;
1682                 }
1683                 dprint(FD_PARSE, "SET io_size_percent %d\n",
1684                                         td->o.io_size_percent);
1685         } else if (parse_is_zone(v)) {
1686                 td->o.io_size = 0;
1687                 td->o.io_size_percent = 0;
1688                 td->o.io_size_nz = v - ZONE_BASE_VAL;
1689         } else
1690                 td->o.io_size = v;
1691
1692         return 0;
1693 }
1694
1695 static int str_zoneskip_cb(void *data, unsigned long long *__val)
1696 {
1697         struct thread_data *td = cb_data_to_td(data);
1698         unsigned long long v = *__val;
1699
1700         if (parse_is_zone(v)) {
1701                 td->o.zone_skip = 0;
1702                 td->o.zone_skip_nz = v - ZONE_BASE_VAL;
1703         } else
1704                 td->o.zone_skip = v;
1705
1706         return 0;
1707 }
1708
1709 static int str_write_bw_log_cb(void *data, const char *str)
1710 {
1711         struct thread_data *td = cb_data_to_td(data);
1712
1713         if (str)
1714                 td->o.bw_log_file = strdup(str);
1715
1716         td->o.write_bw_log = 1;
1717         return 0;
1718 }
1719
1720 static int str_write_lat_log_cb(void *data, const char *str)
1721 {
1722         struct thread_data *td = cb_data_to_td(data);
1723
1724         if (str)
1725                 td->o.lat_log_file = strdup(str);
1726
1727         td->o.write_lat_log = 1;
1728         return 0;
1729 }
1730
1731 static int str_write_iops_log_cb(void *data, const char *str)
1732 {
1733         struct thread_data *td = cb_data_to_td(data);
1734
1735         if (str)
1736                 td->o.iops_log_file = strdup(str);
1737
1738         td->o.write_iops_log = 1;
1739         return 0;
1740 }
1741
1742 static int str_write_hist_log_cb(void *data, const char *str)
1743 {
1744         struct thread_data *td = cb_data_to_td(data);
1745
1746         if (str)
1747                 td->o.hist_log_file = strdup(str);
1748
1749         td->o.write_hist_log = 1;
1750         return 0;
1751 }
1752
1753 /*
1754  * str is supposed to be a substring of the strdup'd original string,
1755  * and is valid only if it's a regular file path.
1756  * This function keeps the pointer to the path as needed later.
1757  *
1758  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1759  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1760  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1761  */
1762 static int str_ioengine_external_cb(void *data, const char *str)
1763 {
1764         struct thread_data *td = cb_data_to_td(data);
1765         struct stat sb;
1766         char *p;
1767
1768         if (!str) {
1769                 log_err("fio: null external ioengine path\n");
1770                 return 1;
1771         }
1772
1773         p = (char *)str; /* str is mutable */
1774         strip_blank_front(&p);
1775         strip_blank_end(p);
1776
1777         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1778                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1779                 return 1;
1780         }
1781
1782         td->o.ioengine_so_path = p;
1783         return 0;
1784 }
1785
1786 static int rw_verify(const struct fio_option *o, void *data)
1787 {
1788         struct thread_data *td = cb_data_to_td(data);
1789
1790         if (read_only && (td_write(td) || td_trim(td))) {
1791                 log_err("fio: job <%s> has write or trim bit set, but"
1792                         " fio is in read-only mode\n", td->o.name);
1793                 return 1;
1794         }
1795
1796         return 0;
1797 }
1798
1799 static int gtod_cpu_verify(const struct fio_option *o, void *data)
1800 {
1801 #ifndef FIO_HAVE_CPU_AFFINITY
1802         struct thread_data *td = cb_data_to_td(data);
1803
1804         if (td->o.gtod_cpu) {
1805                 log_err("fio: platform must support CPU affinity for"
1806                         "gettimeofday() offloading\n");
1807                 return 1;
1808         }
1809 #endif
1810
1811         return 0;
1812 }
1813
1814 /*
1815  * Map of job/command line options
1816  */
1817 struct fio_option fio_options[FIO_MAX_OPTS] = {
1818         {
1819                 .name   = "description",
1820                 .lname  = "Description of job",
1821                 .type   = FIO_OPT_STR_STORE,
1822                 .off1   = offsetof(struct thread_options, description),
1823                 .help   = "Text job description",
1824                 .category = FIO_OPT_C_GENERAL,
1825                 .group  = FIO_OPT_G_DESC,
1826         },
1827         {
1828                 .name   = "name",
1829                 .lname  = "Job name",
1830                 .type   = FIO_OPT_STR_STORE,
1831                 .off1   = offsetof(struct thread_options, name),
1832                 .help   = "Name of this job",
1833                 .category = FIO_OPT_C_GENERAL,
1834                 .group  = FIO_OPT_G_DESC,
1835         },
1836         {
1837                 .name   = "wait_for",
1838                 .lname  = "Waitee name",
1839                 .type   = FIO_OPT_STR_STORE,
1840                 .off1   = offsetof(struct thread_options, wait_for),
1841                 .help   = "Name of the job this one wants to wait for before starting",
1842                 .category = FIO_OPT_C_GENERAL,
1843                 .group  = FIO_OPT_G_DESC,
1844         },
1845         {
1846                 .name   = "filename",
1847                 .lname  = "Filename(s)",
1848                 .type   = FIO_OPT_STR_STORE,
1849                 .off1   = offsetof(struct thread_options, filename),
1850                 .maxlen = PATH_MAX,
1851                 .cb     = str_filename_cb,
1852                 .prio   = -1, /* must come after "directory" */
1853                 .help   = "File(s) to use for the workload",
1854                 .category = FIO_OPT_C_FILE,
1855                 .group  = FIO_OPT_G_FILENAME,
1856         },
1857         {
1858                 .name   = "directory",
1859                 .lname  = "Directory",
1860                 .type   = FIO_OPT_STR_STORE,
1861                 .off1   = offsetof(struct thread_options, directory),
1862                 .cb     = str_directory_cb,
1863                 .help   = "Directory to store files in",
1864                 .category = FIO_OPT_C_FILE,
1865                 .group  = FIO_OPT_G_FILENAME,
1866         },
1867         {
1868                 .name   = "filename_format",
1869                 .lname  = "Filename Format",
1870                 .type   = FIO_OPT_STR_STORE,
1871                 .off1   = offsetof(struct thread_options, filename_format),
1872                 .prio   = -1, /* must come after "directory" */
1873                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1874                 .def    = "$jobname.$jobnum.$filenum",
1875                 .category = FIO_OPT_C_FILE,
1876                 .group  = FIO_OPT_G_FILENAME,
1877         },
1878         {
1879                 .name   = "unique_filename",
1880                 .lname  = "Unique Filename",
1881                 .type   = FIO_OPT_BOOL,
1882                 .off1   = offsetof(struct thread_options, unique_filename),
1883                 .help   = "For network clients, prefix file with source IP",
1884                 .def    = "1",
1885                 .category = FIO_OPT_C_FILE,
1886                 .group  = FIO_OPT_G_FILENAME,
1887         },
1888         {
1889                 .name   = "lockfile",
1890                 .lname  = "Lockfile",
1891                 .type   = FIO_OPT_STR,
1892                 .off1   = offsetof(struct thread_options, file_lock_mode),
1893                 .help   = "Lock file when doing IO to it",
1894                 .prio   = 1,
1895                 .parent = "filename",
1896                 .hide   = 0,
1897                 .def    = "none",
1898                 .category = FIO_OPT_C_FILE,
1899                 .group  = FIO_OPT_G_FILENAME,
1900                 .posval = {
1901                           { .ival = "none",
1902                             .oval = FILE_LOCK_NONE,
1903                             .help = "No file locking",
1904                           },
1905                           { .ival = "exclusive",
1906                             .oval = FILE_LOCK_EXCLUSIVE,
1907                             .help = "Exclusive file lock",
1908                           },
1909                           {
1910                             .ival = "readwrite",
1911                             .oval = FILE_LOCK_READWRITE,
1912                             .help = "Read vs write lock",
1913                           },
1914                 },
1915         },
1916         {
1917                 .name   = "opendir",
1918                 .lname  = "Open directory",
1919                 .type   = FIO_OPT_STR_STORE,
1920                 .off1   = offsetof(struct thread_options, opendir),
1921                 .cb     = str_opendir_cb,
1922                 .help   = "Recursively add files from this directory and down",
1923                 .category = FIO_OPT_C_FILE,
1924                 .group  = FIO_OPT_G_FILENAME,
1925         },
1926         {
1927                 .name   = "rw",
1928                 .lname  = "Read/write",
1929                 .alias  = "readwrite",
1930                 .type   = FIO_OPT_STR,
1931                 .cb     = str_rw_cb,
1932                 .off1   = offsetof(struct thread_options, td_ddir),
1933                 .help   = "IO direction",
1934                 .def    = "read",
1935                 .verify = rw_verify,
1936                 .category = FIO_OPT_C_IO,
1937                 .group  = FIO_OPT_G_IO_BASIC,
1938                 .posval = {
1939                           { .ival = "read",
1940                             .oval = TD_DDIR_READ,
1941                             .help = "Sequential read",
1942                           },
1943                           { .ival = "write",
1944                             .oval = TD_DDIR_WRITE,
1945                             .help = "Sequential write",
1946                           },
1947                           { .ival = "trim",
1948                             .oval = TD_DDIR_TRIM,
1949                             .help = "Sequential trim",
1950                           },
1951                           { .ival = "randread",
1952                             .oval = TD_DDIR_RANDREAD,
1953                             .help = "Random read",
1954                           },
1955                           { .ival = "randwrite",
1956                             .oval = TD_DDIR_RANDWRITE,
1957                             .help = "Random write",
1958                           },
1959                           { .ival = "randtrim",
1960                             .oval = TD_DDIR_RANDTRIM,
1961                             .help = "Random trim",
1962                           },
1963                           { .ival = "rw",
1964                             .oval = TD_DDIR_RW,
1965                             .help = "Sequential read and write mix",
1966                           },
1967                           { .ival = "readwrite",
1968                             .oval = TD_DDIR_RW,
1969                             .help = "Sequential read and write mix",
1970                           },
1971                           { .ival = "randrw",
1972                             .oval = TD_DDIR_RANDRW,
1973                             .help = "Random read and write mix"
1974                           },
1975                           { .ival = "trimwrite",
1976                             .oval = TD_DDIR_TRIMWRITE,
1977                             .help = "Trim and write mix, trims preceding writes"
1978                           },
1979                           { .ival = "randtrimwrite",
1980                             .oval = TD_DDIR_RANDTRIMWRITE,
1981                             .help = "Randomly trim and write mix, trims preceding writes"
1982                           },
1983                 },
1984         },
1985         {
1986                 .name   = "rw_sequencer",
1987                 .lname  = "RW Sequencer",
1988                 .type   = FIO_OPT_STR,
1989                 .off1   = offsetof(struct thread_options, rw_seq),
1990                 .help   = "IO offset generator modifier",
1991                 .def    = "sequential",
1992                 .category = FIO_OPT_C_IO,
1993                 .group  = FIO_OPT_G_IO_BASIC,
1994                 .posval = {
1995                           { .ival = "sequential",
1996                             .oval = RW_SEQ_SEQ,
1997                             .help = "Generate sequential offsets",
1998                           },
1999                           { .ival = "identical",
2000                             .oval = RW_SEQ_IDENT,
2001                             .help = "Generate identical offsets",
2002                           },
2003                 },
2004         },
2005
2006         {
2007                 .name   = "ioengine",
2008                 .lname  = "IO Engine",
2009                 .type   = FIO_OPT_STR_STORE,
2010                 .off1   = offsetof(struct thread_options, ioengine),
2011                 .help   = "IO engine to use",
2012                 .def    = FIO_PREFERRED_ENGINE,
2013                 .category = FIO_OPT_C_IO,
2014                 .group  = FIO_OPT_G_IO_BASIC,
2015                 .posval = {
2016                           { .ival = "sync",
2017                             .help = "Use read/write",
2018                           },
2019                           { .ival = "psync",
2020                             .help = "Use pread/pwrite",
2021                           },
2022                           { .ival = "vsync",
2023                             .help = "Use readv/writev",
2024                           },
2025 #ifdef CONFIG_PWRITEV
2026                           { .ival = "pvsync",
2027                             .help = "Use preadv/pwritev",
2028                           },
2029 #endif
2030 #ifdef FIO_HAVE_PWRITEV2
2031                           { .ival = "pvsync2",
2032                             .help = "Use preadv2/pwritev2",
2033                           },
2034 #endif
2035 #ifdef CONFIG_LIBAIO
2036                           { .ival = "libaio",
2037                             .help = "Linux native asynchronous IO",
2038                           },
2039 #endif
2040 #ifdef ARCH_HAVE_IOURING
2041                           { .ival = "io_uring",
2042                             .help = "Fast Linux native aio",
2043                           },
2044 #endif
2045 #ifdef CONFIG_POSIXAIO
2046                           { .ival = "posixaio",
2047                             .help = "POSIX asynchronous IO",
2048                           },
2049 #endif
2050 #ifdef CONFIG_SOLARISAIO
2051                           { .ival = "solarisaio",
2052                             .help = "Solaris native asynchronous IO",
2053                           },
2054 #endif
2055 #ifdef CONFIG_WINDOWSAIO
2056                           { .ival = "windowsaio",
2057                             .help = "Windows native asynchronous IO"
2058                           },
2059 #endif
2060 #ifdef CONFIG_RBD
2061                           { .ival = "rbd",
2062                             .help = "Rados Block Device asynchronous IO"
2063                           },
2064 #endif
2065                           { .ival = "mmap",
2066                             .help = "Memory mapped IO"
2067                           },
2068 #ifdef CONFIG_LINUX_SPLICE
2069                           { .ival = "splice",
2070                             .help = "splice/vmsplice based IO",
2071                           },
2072                           { .ival = "netsplice",
2073                             .help = "splice/vmsplice to/from the network",
2074                           },
2075 #endif
2076 #ifdef FIO_HAVE_SGIO
2077                           { .ival = "sg",
2078                             .help = "SCSI generic v3 IO",
2079                           },
2080 #endif
2081                           { .ival = "null",
2082                             .help = "Testing engine (no data transfer)",
2083                           },
2084                           { .ival = "net",
2085                             .help = "Network IO",
2086                           },
2087                           { .ival = "cpuio",
2088                             .help = "CPU cycle burner engine",
2089                           },
2090 #ifdef CONFIG_RDMA
2091                           { .ival = "rdma",
2092                             .help = "RDMA IO engine",
2093                           },
2094 #endif
2095 #ifdef CONFIG_LIBRPMA_APM
2096                           { .ival = "librpma_apm",
2097                             .help = "librpma IO engine in APM mode",
2098                           },
2099 #endif
2100 #ifdef CONFIG_LIBRPMA_GPSPM
2101                           { .ival = "librpma_gpspm",
2102                             .help = "librpma IO engine in GPSPM mode",
2103                           },
2104 #endif
2105 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
2106                           { .ival = "e4defrag",
2107                             .help = "ext4 defrag engine",
2108                           },
2109 #endif
2110 #ifdef CONFIG_LINUX_FALLOCATE
2111                           { .ival = "falloc",
2112                             .help = "fallocate() file based engine",
2113                           },
2114 #endif
2115 #ifdef CONFIG_GFAPI
2116                           { .ival = "gfapi",
2117                             .help = "Glusterfs libgfapi(sync) based engine"
2118                           },
2119                           { .ival = "gfapi_async",
2120                             .help = "Glusterfs libgfapi(async) based engine"
2121                           },
2122 #endif
2123 #ifdef CONFIG_LIBHDFS
2124                           { .ival = "libhdfs",
2125                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
2126                           },
2127 #endif
2128 #ifdef CONFIG_IME
2129                           { .ival = "ime_psync",
2130                             .help = "DDN's IME synchronous IO engine",
2131                           },
2132                           { .ival = "ime_psyncv",
2133                             .help = "DDN's IME synchronous IO engine using iovecs",
2134                           },
2135                           { .ival = "ime_aio",
2136                             .help = "DDN's IME asynchronous IO engine",
2137                           },
2138 #endif
2139 #ifdef CONFIG_LINUX_DEVDAX
2140                           { .ival = "dev-dax",
2141                             .help = "DAX Device based IO engine",
2142                           },
2143 #endif
2144                           {
2145                             .ival = "filecreate",
2146                             .help = "File creation engine",
2147                           },
2148                           { .ival = "external",
2149                             .help = "Load external engine (append name)",
2150                             .cb = str_ioengine_external_cb,
2151                           },
2152 #ifdef CONFIG_LIBPMEM
2153                           { .ival = "libpmem",
2154                             .help = "PMDK libpmem based IO engine",
2155                           },
2156 #endif
2157 #ifdef CONFIG_HTTP
2158                           { .ival = "http",
2159                             .help = "HTTP (WebDAV/S3) IO engine",
2160                           },
2161 #endif
2162                           { .ival = "nbd",
2163                             .help = "Network Block Device (NBD) IO engine"
2164                           },
2165 #ifdef CONFIG_DFS
2166                           { .ival = "dfs",
2167                             .help = "DAOS File System (dfs) IO engine",
2168                           },
2169 #endif
2170 #ifdef CONFIG_LIBNFS
2171                           { .ival = "nfs",
2172                             .help = "NFS IO engine",
2173                           },
2174 #endif
2175 #ifdef CONFIG_LIBXNVME
2176                           { .ival = "xnvme",
2177                             .help = "XNVME IO engine",
2178                           },
2179 #endif
2180                 },
2181         },
2182         {
2183                 .name   = "iodepth",
2184                 .lname  = "IO Depth",
2185                 .type   = FIO_OPT_INT,
2186                 .off1   = offsetof(struct thread_options, iodepth),
2187                 .help   = "Number of IO buffers to keep in flight",
2188                 .minval = 1,
2189                 .interval = 1,
2190                 .def    = "1",
2191                 .category = FIO_OPT_C_IO,
2192                 .group  = FIO_OPT_G_IO_BASIC,
2193         },
2194         {
2195                 .name   = "iodepth_batch",
2196                 .lname  = "IO Depth batch",
2197                 .alias  = "iodepth_batch_submit",
2198                 .type   = FIO_OPT_INT,
2199                 .off1   = offsetof(struct thread_options, iodepth_batch),
2200                 .help   = "Number of IO buffers to submit in one go",
2201                 .parent = "iodepth",
2202                 .hide   = 1,
2203                 .interval = 1,
2204                 .def    = "1",
2205                 .category = FIO_OPT_C_IO,
2206                 .group  = FIO_OPT_G_IO_BASIC,
2207         },
2208         {
2209                 .name   = "iodepth_batch_complete_min",
2210                 .lname  = "Min IO depth batch complete",
2211                 .alias  = "iodepth_batch_complete",
2212                 .type   = FIO_OPT_INT,
2213                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
2214                 .help   = "Min number of IO buffers to retrieve in one go",
2215                 .parent = "iodepth",
2216                 .hide   = 1,
2217                 .minval = 0,
2218                 .interval = 1,
2219                 .def    = "1",
2220                 .category = FIO_OPT_C_IO,
2221                 .group  = FIO_OPT_G_IO_BASIC,
2222         },
2223         {
2224                 .name   = "iodepth_batch_complete_max",
2225                 .lname  = "Max IO depth batch complete",
2226                 .type   = FIO_OPT_INT,
2227                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
2228                 .help   = "Max number of IO buffers to retrieve in one go",
2229                 .parent = "iodepth",
2230                 .hide   = 1,
2231                 .minval = 0,
2232                 .interval = 1,
2233                 .category = FIO_OPT_C_IO,
2234                 .group  = FIO_OPT_G_IO_BASIC,
2235         },
2236         {
2237                 .name   = "iodepth_low",
2238                 .lname  = "IO Depth batch low",
2239                 .type   = FIO_OPT_INT,
2240                 .off1   = offsetof(struct thread_options, iodepth_low),
2241                 .help   = "Low water mark for queuing depth",
2242                 .parent = "iodepth",
2243                 .hide   = 1,
2244                 .interval = 1,
2245                 .category = FIO_OPT_C_IO,
2246                 .group  = FIO_OPT_G_IO_BASIC,
2247         },
2248         {
2249                 .name   = "serialize_overlap",
2250                 .lname  = "Serialize overlap",
2251                 .off1   = offsetof(struct thread_options, serialize_overlap),
2252                 .type   = FIO_OPT_BOOL,
2253                 .help   = "Wait for in-flight IOs that collide to complete",
2254                 .parent = "iodepth",
2255                 .def    = "0",
2256                 .category = FIO_OPT_C_IO,
2257                 .group  = FIO_OPT_G_IO_BASIC,
2258         },
2259         {
2260                 .name   = "io_submit_mode",
2261                 .lname  = "IO submit mode",
2262                 .type   = FIO_OPT_STR,
2263                 .off1   = offsetof(struct thread_options, io_submit_mode),
2264                 .help   = "How IO submissions and completions are done",
2265                 .def    = "inline",
2266                 .category = FIO_OPT_C_IO,
2267                 .group  = FIO_OPT_G_IO_BASIC,
2268                 .posval = {
2269                           { .ival = "inline",
2270                             .oval = IO_MODE_INLINE,
2271                             .help = "Submit and complete IO inline",
2272                           },
2273                           { .ival = "offload",
2274                             .oval = IO_MODE_OFFLOAD,
2275                             .help = "Offload submit and complete to threads",
2276                           },
2277                 },
2278         },
2279         {
2280                 .name   = "size",
2281                 .lname  = "Size",
2282                 .type   = FIO_OPT_STR_VAL_ZONE,
2283                 .cb     = str_size_cb,
2284                 .off1   = offsetof(struct thread_options, size),
2285                 .help   = "Total size of device or files",
2286                 .category = FIO_OPT_C_IO,
2287                 .group  = FIO_OPT_G_INVALID,
2288         },
2289         {
2290                 .name   = "io_size",
2291                 .alias  = "io_limit",
2292                 .lname  = "IO Size",
2293                 .type   = FIO_OPT_STR_VAL_ZONE,
2294                 .cb     = str_io_size_cb,
2295                 .off1   = offsetof(struct thread_options, io_size),
2296                 .help   = "Total size of I/O to be performed",
2297                 .category = FIO_OPT_C_IO,
2298                 .group  = FIO_OPT_G_INVALID,
2299         },
2300         {
2301                 .name   = "fill_device",
2302                 .lname  = "Fill device",
2303                 .alias  = "fill_fs",
2304                 .type   = FIO_OPT_BOOL,
2305                 .off1   = offsetof(struct thread_options, fill_device),
2306                 .help   = "Write until an ENOSPC error occurs",
2307                 .def    = "0",
2308                 .category = FIO_OPT_C_FILE,
2309                 .group  = FIO_OPT_G_INVALID,
2310         },
2311         {
2312                 .name   = "filesize",
2313                 .lname  = "File size",
2314                 .type   = FIO_OPT_STR_VAL,
2315                 .off1   = offsetof(struct thread_options, file_size_low),
2316                 .off2   = offsetof(struct thread_options, file_size_high),
2317                 .minval = 1,
2318                 .help   = "Size of individual files",
2319                 .interval = 1024 * 1024,
2320                 .category = FIO_OPT_C_FILE,
2321                 .group  = FIO_OPT_G_INVALID,
2322         },
2323         {
2324                 .name   = "file_append",
2325                 .lname  = "File append",
2326                 .type   = FIO_OPT_BOOL,
2327                 .off1   = offsetof(struct thread_options, file_append),
2328                 .help   = "IO will start at the end of the file(s)",
2329                 .def    = "0",
2330                 .category = FIO_OPT_C_FILE,
2331                 .group  = FIO_OPT_G_INVALID,
2332         },
2333         {
2334                 .name   = "offset",
2335                 .lname  = "IO offset",
2336                 .alias  = "fileoffset",
2337                 .type   = FIO_OPT_STR_VAL_ZONE,
2338                 .cb     = str_offset_cb,
2339                 .off1   = offsetof(struct thread_options, start_offset),
2340                 .help   = "Start IO from this offset",
2341                 .def    = "0",
2342                 .category = FIO_OPT_C_IO,
2343                 .group  = FIO_OPT_G_INVALID,
2344         },
2345         {
2346                 .name   = "offset_align",
2347                 .lname  = "IO offset alignment",
2348                 .type   = FIO_OPT_INT,
2349                 .off1   = offsetof(struct thread_options, start_offset_align),
2350                 .help   = "Start IO from this offset alignment",
2351                 .def    = "0",
2352                 .interval = 512,
2353                 .category = FIO_OPT_C_IO,
2354                 .group  = FIO_OPT_G_INVALID,
2355         },
2356         {
2357                 .name   = "offset_increment",
2358                 .lname  = "IO offset increment",
2359                 .type   = FIO_OPT_STR_VAL_ZONE,
2360                 .cb     = str_offset_increment_cb,
2361                 .off1   = offsetof(struct thread_options, offset_increment),
2362                 .help   = "What is the increment from one offset to the next",
2363                 .parent = "offset",
2364                 .hide   = 1,
2365                 .def    = "0",
2366                 .category = FIO_OPT_C_IO,
2367                 .group  = FIO_OPT_G_INVALID,
2368         },
2369         {
2370                 .name   = "number_ios",
2371                 .lname  = "Number of IOs to perform",
2372                 .type   = FIO_OPT_STR_VAL,
2373                 .off1   = offsetof(struct thread_options, number_ios),
2374                 .help   = "Force job completion after this number of IOs",
2375                 .def    = "0",
2376                 .category = FIO_OPT_C_IO,
2377                 .group  = FIO_OPT_G_INVALID,
2378         },
2379         {
2380                 .name   = "bs",
2381                 .lname  = "Block size",
2382                 .alias  = "blocksize",
2383                 .type   = FIO_OPT_ULL,
2384                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2385                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2386                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2387                 .minval = 1,
2388                 .help   = "Block size unit",
2389                 .def    = "4096",
2390                 .parent = "rw",
2391                 .hide   = 1,
2392                 .interval = 512,
2393                 .category = FIO_OPT_C_IO,
2394                 .group  = FIO_OPT_G_INVALID,
2395         },
2396         {
2397                 .name   = "ba",
2398                 .lname  = "Block size align",
2399                 .alias  = "blockalign",
2400                 .type   = FIO_OPT_ULL,
2401                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2402                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2403                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2404                 .minval = 1,
2405                 .help   = "IO block offset alignment",
2406                 .parent = "rw",
2407                 .hide   = 1,
2408                 .interval = 512,
2409                 .category = FIO_OPT_C_IO,
2410                 .group  = FIO_OPT_G_INVALID,
2411         },
2412         {
2413                 .name   = "bsrange",
2414                 .lname  = "Block size range",
2415                 .alias  = "blocksize_range",
2416                 .type   = FIO_OPT_RANGE,
2417                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2418                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2419                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2420                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2421                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2422                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2423                 .minval = 1,
2424                 .help   = "Set block size range (in more detail than bs)",
2425                 .parent = "rw",
2426                 .hide   = 1,
2427                 .interval = 4096,
2428                 .category = FIO_OPT_C_IO,
2429                 .group  = FIO_OPT_G_INVALID,
2430         },
2431         {
2432                 .name   = "bssplit",
2433                 .lname  = "Block size split",
2434                 .type   = FIO_OPT_STR_ULL,
2435                 .cb     = str_bssplit_cb,
2436                 .off1   = offsetof(struct thread_options, bssplit),
2437                 .help   = "Set a specific mix of block sizes",
2438                 .parent = "rw",
2439                 .hide   = 1,
2440                 .category = FIO_OPT_C_IO,
2441                 .group  = FIO_OPT_G_INVALID,
2442         },
2443         {
2444                 .name   = "bs_unaligned",
2445                 .lname  = "Block size unaligned",
2446                 .alias  = "blocksize_unaligned",
2447                 .type   = FIO_OPT_STR_SET,
2448                 .off1   = offsetof(struct thread_options, bs_unaligned),
2449                 .help   = "Don't sector align IO buffer sizes",
2450                 .parent = "rw",
2451                 .hide   = 1,
2452                 .category = FIO_OPT_C_IO,
2453                 .group  = FIO_OPT_G_INVALID,
2454         },
2455         {
2456                 .name   = "bs_is_seq_rand",
2457                 .lname  = "Block size division is seq/random (not read/write)",
2458                 .type   = FIO_OPT_BOOL,
2459                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2460                 .help   = "Consider any blocksize setting to be sequential,random",
2461                 .def    = "0",
2462                 .parent = "blocksize",
2463                 .category = FIO_OPT_C_IO,
2464                 .group  = FIO_OPT_G_INVALID,
2465         },
2466         {
2467                 .name   = "randrepeat",
2468                 .alias  = "allrandrepeat",
2469                 .lname  = "Random repeatable",
2470                 .type   = FIO_OPT_BOOL,
2471                 .off1   = offsetof(struct thread_options, rand_repeatable),
2472                 .help   = "Use repeatable random IO pattern",
2473                 .def    = "1",
2474                 .parent = "rw",
2475                 .hide   = 1,
2476                 .category = FIO_OPT_C_IO,
2477                 .group  = FIO_OPT_G_RANDOM,
2478         },
2479         {
2480                 .name   = "randseed",
2481                 .lname  = "The random generator seed",
2482                 .type   = FIO_OPT_STR_VAL,
2483                 .off1   = offsetof(struct thread_options, rand_seed),
2484                 .help   = "Set the random generator seed value",
2485                 .def    = "0x89",
2486                 .parent = "rw",
2487                 .category = FIO_OPT_C_IO,
2488                 .group  = FIO_OPT_G_RANDOM,
2489         },
2490         {
2491                 .name   = "norandommap",
2492                 .lname  = "No randommap",
2493                 .type   = FIO_OPT_STR_SET,
2494                 .off1   = offsetof(struct thread_options, norandommap),
2495                 .help   = "Accept potential duplicate random blocks",
2496                 .parent = "rw",
2497                 .hide   = 1,
2498                 .hide_on_set = 1,
2499                 .category = FIO_OPT_C_IO,
2500                 .group  = FIO_OPT_G_RANDOM,
2501         },
2502         {
2503                 .name   = "softrandommap",
2504                 .lname  = "Soft randommap",
2505                 .type   = FIO_OPT_BOOL,
2506                 .off1   = offsetof(struct thread_options, softrandommap),
2507                 .help   = "Set norandommap if randommap allocation fails",
2508                 .parent = "norandommap",
2509                 .hide   = 1,
2510                 .def    = "0",
2511                 .category = FIO_OPT_C_IO,
2512                 .group  = FIO_OPT_G_RANDOM,
2513         },
2514         {
2515                 .name   = "random_generator",
2516                 .lname  = "Random Generator",
2517                 .type   = FIO_OPT_STR,
2518                 .off1   = offsetof(struct thread_options, random_generator),
2519                 .help   = "Type of random number generator to use",
2520                 .def    = "tausworthe",
2521                 .posval = {
2522                           { .ival = "tausworthe",
2523                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2524                             .help = "Strong Tausworthe generator",
2525                           },
2526                           { .ival = "lfsr",
2527                             .oval = FIO_RAND_GEN_LFSR,
2528                             .help = "Variable length LFSR",
2529                           },
2530                           {
2531                             .ival = "tausworthe64",
2532                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2533                             .help = "64-bit Tausworthe variant",
2534                           },
2535                 },
2536                 .category = FIO_OPT_C_IO,
2537                 .group  = FIO_OPT_G_RANDOM,
2538         },
2539         {
2540                 .name   = "random_distribution",
2541                 .lname  = "Random Distribution",
2542                 .type   = FIO_OPT_STR,
2543                 .off1   = offsetof(struct thread_options, random_distribution),
2544                 .cb     = str_random_distribution_cb,
2545                 .help   = "Random offset distribution generator",
2546                 .def    = "random",
2547                 .posval = {
2548                           { .ival = "random",
2549                             .oval = FIO_RAND_DIST_RANDOM,
2550                             .help = "Completely random",
2551                           },
2552                           { .ival = "zipf",
2553                             .oval = FIO_RAND_DIST_ZIPF,
2554                             .help = "Zipf distribution",
2555                           },
2556                           { .ival = "pareto",
2557                             .oval = FIO_RAND_DIST_PARETO,
2558                             .help = "Pareto distribution",
2559                           },
2560                           { .ival = "normal",
2561                             .oval = FIO_RAND_DIST_GAUSS,
2562                             .help = "Normal (Gaussian) distribution",
2563                           },
2564                           { .ival = "zoned",
2565                             .oval = FIO_RAND_DIST_ZONED,
2566                             .help = "Zoned random distribution",
2567                           },
2568                           { .ival = "zoned_abs",
2569                             .oval = FIO_RAND_DIST_ZONED_ABS,
2570                             .help = "Zoned absolute random distribution",
2571                           },
2572                 },
2573                 .category = FIO_OPT_C_IO,
2574                 .group  = FIO_OPT_G_RANDOM,
2575         },
2576         {
2577                 .name   = "percentage_random",
2578                 .lname  = "Percentage Random",
2579                 .type   = FIO_OPT_INT,
2580                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2581                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2582                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2583                 .maxval = 100,
2584                 .help   = "Percentage of seq/random mix that should be random",
2585                 .def    = "100,100,100",
2586                 .interval = 5,
2587                 .inverse = "percentage_sequential",
2588                 .category = FIO_OPT_C_IO,
2589                 .group  = FIO_OPT_G_RANDOM,
2590         },
2591         {
2592                 .name   = "percentage_sequential",
2593                 .lname  = "Percentage Sequential",
2594                 .type   = FIO_OPT_DEPRECATED,
2595                 .category = FIO_OPT_C_IO,
2596                 .group  = FIO_OPT_G_RANDOM,
2597         },
2598         {
2599                 .name   = "nrfiles",
2600                 .lname  = "Number of files",
2601                 .alias  = "nr_files",
2602                 .type   = FIO_OPT_INT,
2603                 .off1   = offsetof(struct thread_options, nr_files),
2604                 .help   = "Split job workload between this number of files",
2605                 .def    = "1",
2606                 .interval = 1,
2607                 .category = FIO_OPT_C_FILE,
2608                 .group  = FIO_OPT_G_INVALID,
2609         },
2610         {
2611                 .name   = "openfiles",
2612                 .lname  = "Number of open files",
2613                 .type   = FIO_OPT_INT,
2614                 .off1   = offsetof(struct thread_options, open_files),
2615                 .help   = "Number of files to keep open at the same time",
2616                 .category = FIO_OPT_C_FILE,
2617                 .group  = FIO_OPT_G_INVALID,
2618         },
2619         {
2620                 .name   = "file_service_type",
2621                 .lname  = "File service type",
2622                 .type   = FIO_OPT_STR,
2623                 .cb     = str_fst_cb,
2624                 .off1   = offsetof(struct thread_options, file_service_type),
2625                 .help   = "How to select which file to service next",
2626                 .def    = "roundrobin",
2627                 .category = FIO_OPT_C_FILE,
2628                 .group  = FIO_OPT_G_INVALID,
2629                 .posval = {
2630                           { .ival = "random",
2631                             .oval = FIO_FSERVICE_RANDOM,
2632                             .help = "Choose a file at random (uniform)",
2633                           },
2634                           { .ival = "zipf",
2635                             .oval = FIO_FSERVICE_ZIPF,
2636                             .help = "Zipf randomized",
2637                           },
2638                           { .ival = "pareto",
2639                             .oval = FIO_FSERVICE_PARETO,
2640                             .help = "Pareto randomized",
2641                           },
2642                           { .ival = "normal",
2643                             .oval = FIO_FSERVICE_GAUSS,
2644                             .help = "Normal (Gaussian) randomized",
2645                           },
2646                           { .ival = "gauss",
2647                             .oval = FIO_FSERVICE_GAUSS,
2648                             .help = "Alias for normal",
2649                           },
2650                           { .ival = "roundrobin",
2651                             .oval = FIO_FSERVICE_RR,
2652                             .help = "Round robin select files",
2653                           },
2654                           { .ival = "sequential",
2655                             .oval = FIO_FSERVICE_SEQ,
2656                             .help = "Finish one file before moving to the next",
2657                           },
2658                 },
2659                 .parent = "nrfiles",
2660                 .hide   = 1,
2661         },
2662         {
2663                 .name   = "fallocate",
2664                 .lname  = "Fallocate",
2665                 .type   = FIO_OPT_STR,
2666                 .off1   = offsetof(struct thread_options, fallocate_mode),
2667                 .help   = "Whether pre-allocation is performed when laying out files",
2668 #ifdef FIO_HAVE_DEFAULT_FALLOCATE
2669                 .def    = "native",
2670 #else
2671                 .def    = "none",
2672 #endif
2673                 .category = FIO_OPT_C_FILE,
2674                 .group  = FIO_OPT_G_INVALID,
2675                 .posval = {
2676                           { .ival = "none",
2677                             .oval = FIO_FALLOCATE_NONE,
2678                             .help = "Do not pre-allocate space",
2679                           },
2680                           { .ival = "native",
2681                             .oval = FIO_FALLOCATE_NATIVE,
2682                             .help = "Use native pre-allocation if possible",
2683                           },
2684 #ifdef CONFIG_POSIX_FALLOCATE
2685                           { .ival = "posix",
2686                             .oval = FIO_FALLOCATE_POSIX,
2687                             .help = "Use posix_fallocate()",
2688                           },
2689 #endif
2690 #ifdef CONFIG_LINUX_FALLOCATE
2691                           { .ival = "keep",
2692                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2693                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2694                           },
2695 #endif
2696                           { .ival = "truncate",
2697                             .oval = FIO_FALLOCATE_TRUNCATE,
2698                             .help = "Truncate file to final size instead of allocating"
2699                           },
2700                           /* Compatibility with former boolean values */
2701                           { .ival = "0",
2702                             .oval = FIO_FALLOCATE_NONE,
2703                             .help = "Alias for 'none'",
2704                           },
2705 #ifdef CONFIG_POSIX_FALLOCATE
2706                           { .ival = "1",
2707                             .oval = FIO_FALLOCATE_POSIX,
2708                             .help = "Alias for 'posix'",
2709                           },
2710 #endif
2711                 },
2712         },
2713         {
2714                 .name   = "fadvise_hint",
2715                 .lname  = "Fadvise hint",
2716                 .type   = FIO_OPT_STR,
2717                 .off1   = offsetof(struct thread_options, fadvise_hint),
2718                 .posval = {
2719                           { .ival = "0",
2720                             .oval = F_ADV_NONE,
2721                             .help = "Don't issue fadvise/madvise",
2722                           },
2723                           { .ival = "1",
2724                             .oval = F_ADV_TYPE,
2725                             .help = "Advise using fio IO pattern",
2726                           },
2727                           { .ival = "random",
2728                             .oval = F_ADV_RANDOM,
2729                             .help = "Advise using FADV_RANDOM",
2730                           },
2731                           { .ival = "sequential",
2732                             .oval = F_ADV_SEQUENTIAL,
2733                             .help = "Advise using FADV_SEQUENTIAL",
2734                           },
2735 #ifdef POSIX_FADV_NOREUSE
2736                           { .ival = "noreuse",
2737                             .oval = F_ADV_NOREUSE,
2738                             .help = "Advise using FADV_NOREUSE",
2739                           },
2740 #endif
2741                 },
2742                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2743                 .def    = "1",
2744                 .category = FIO_OPT_C_FILE,
2745                 .group  = FIO_OPT_G_INVALID,
2746         },
2747         {
2748                 .name   = "fsync",
2749                 .lname  = "Fsync",
2750                 .type   = FIO_OPT_INT,
2751                 .off1   = offsetof(struct thread_options, fsync_blocks),
2752                 .help   = "Issue fsync for writes every given number of blocks",
2753                 .def    = "0",
2754                 .interval = 1,
2755                 .category = FIO_OPT_C_FILE,
2756                 .group  = FIO_OPT_G_INVALID,
2757         },
2758         {
2759                 .name   = "fdatasync",
2760                 .lname  = "Fdatasync",
2761                 .type   = FIO_OPT_INT,
2762                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2763                 .help   = "Issue fdatasync for writes every given number of blocks",
2764                 .def    = "0",
2765                 .interval = 1,
2766                 .category = FIO_OPT_C_FILE,
2767                 .group  = FIO_OPT_G_INVALID,
2768         },
2769         {
2770                 .name   = "write_barrier",
2771                 .lname  = "Write barrier",
2772                 .type   = FIO_OPT_INT,
2773                 .off1   = offsetof(struct thread_options, barrier_blocks),
2774                 .help   = "Make every Nth write a barrier write",
2775                 .def    = "0",
2776                 .interval = 1,
2777                 .category = FIO_OPT_C_IO,
2778                 .group  = FIO_OPT_G_INVALID,
2779         },
2780 #ifdef CONFIG_SYNC_FILE_RANGE
2781         {
2782                 .name   = "sync_file_range",
2783                 .lname  = "Sync file range",
2784                 .posval = {
2785                           { .ival = "wait_before",
2786                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2787                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2788                             .orval  = 1,
2789                           },
2790                           { .ival = "write",
2791                             .oval = SYNC_FILE_RANGE_WRITE,
2792                             .help = "SYNC_FILE_RANGE_WRITE",
2793                             .orval  = 1,
2794                           },
2795                           {
2796                             .ival = "wait_after",
2797                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2798                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2799                             .orval  = 1,
2800                           },
2801                 },
2802                 .type   = FIO_OPT_STR_MULTI,
2803                 .cb     = str_sfr_cb,
2804                 .off1   = offsetof(struct thread_options, sync_file_range),
2805                 .help   = "Use sync_file_range()",
2806                 .category = FIO_OPT_C_FILE,
2807                 .group  = FIO_OPT_G_INVALID,
2808         },
2809 #else
2810         {
2811                 .name   = "sync_file_range",
2812                 .lname  = "Sync file range",
2813                 .type   = FIO_OPT_UNSUPPORTED,
2814                 .help   = "Your platform does not support sync_file_range",
2815         },
2816 #endif
2817         {
2818                 .name   = "direct",
2819                 .lname  = "Direct I/O",
2820                 .type   = FIO_OPT_BOOL,
2821                 .off1   = offsetof(struct thread_options, odirect),
2822                 .help   = "Use O_DIRECT IO (negates buffered)",
2823                 .def    = "0",
2824                 .inverse = "buffered",
2825                 .category = FIO_OPT_C_IO,
2826                 .group  = FIO_OPT_G_IO_TYPE,
2827         },
2828         {
2829                 .name   = "atomic",
2830                 .lname  = "Atomic I/O",
2831                 .type   = FIO_OPT_BOOL,
2832                 .off1   = offsetof(struct thread_options, oatomic),
2833                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2834                 .def    = "0",
2835                 .category = FIO_OPT_C_IO,
2836                 .group  = FIO_OPT_G_IO_TYPE,
2837         },
2838         {
2839                 .name   = "buffered",
2840                 .lname  = "Buffered I/O",
2841                 .type   = FIO_OPT_BOOL,
2842                 .off1   = offsetof(struct thread_options, odirect),
2843                 .neg    = 1,
2844                 .help   = "Use buffered IO (negates direct)",
2845                 .def    = "1",
2846                 .inverse = "direct",
2847                 .category = FIO_OPT_C_IO,
2848                 .group  = FIO_OPT_G_IO_TYPE,
2849         },
2850         {
2851                 .name   = "overwrite",
2852                 .lname  = "Overwrite",
2853                 .type   = FIO_OPT_BOOL,
2854                 .off1   = offsetof(struct thread_options, overwrite),
2855                 .help   = "When writing, set whether to overwrite current data",
2856                 .def    = "0",
2857                 .category = FIO_OPT_C_FILE,
2858                 .group  = FIO_OPT_G_INVALID,
2859         },
2860         {
2861                 .name   = "loops",
2862                 .lname  = "Loops",
2863                 .type   = FIO_OPT_INT,
2864                 .off1   = offsetof(struct thread_options, loops),
2865                 .help   = "Number of times to run the job",
2866                 .def    = "1",
2867                 .interval = 1,
2868                 .category = FIO_OPT_C_GENERAL,
2869                 .group  = FIO_OPT_G_RUNTIME,
2870         },
2871         {
2872                 .name   = "numjobs",
2873                 .lname  = "Number of jobs",
2874                 .type   = FIO_OPT_INT,
2875                 .off1   = offsetof(struct thread_options, numjobs),
2876                 .help   = "Duplicate this job this many times",
2877                 .def    = "1",
2878                 .interval = 1,
2879                 .category = FIO_OPT_C_GENERAL,
2880                 .group  = FIO_OPT_G_RUNTIME,
2881         },
2882         {
2883                 .name   = "startdelay",
2884                 .lname  = "Start delay",
2885                 .type   = FIO_OPT_STR_VAL_TIME,
2886                 .off1   = offsetof(struct thread_options, start_delay),
2887                 .off2   = offsetof(struct thread_options, start_delay_high),
2888                 .help   = "Only start job when this period has passed",
2889                 .def    = "0",
2890                 .is_seconds = 1,
2891                 .is_time = 1,
2892                 .category = FIO_OPT_C_GENERAL,
2893                 .group  = FIO_OPT_G_RUNTIME,
2894         },
2895         {
2896                 .name   = "runtime",
2897                 .lname  = "Runtime",
2898                 .alias  = "timeout",
2899                 .type   = FIO_OPT_STR_VAL_TIME,
2900                 .off1   = offsetof(struct thread_options, timeout),
2901                 .help   = "Stop workload when this amount of time has passed",
2902                 .def    = "0",
2903                 .is_seconds = 1,
2904                 .is_time = 1,
2905                 .category = FIO_OPT_C_GENERAL,
2906                 .group  = FIO_OPT_G_RUNTIME,
2907         },
2908         {
2909                 .name   = "time_based",
2910                 .lname  = "Time based",
2911                 .type   = FIO_OPT_STR_SET,
2912                 .off1   = offsetof(struct thread_options, time_based),
2913                 .help   = "Keep running until runtime/timeout is met",
2914                 .category = FIO_OPT_C_GENERAL,
2915                 .group  = FIO_OPT_G_RUNTIME,
2916         },
2917         {
2918                 .name   = "verify_only",
2919                 .lname  = "Verify only",
2920                 .type   = FIO_OPT_STR_SET,
2921                 .off1   = offsetof(struct thread_options, verify_only),
2922                 .help   = "Verifies previously written data is still valid",
2923                 .category = FIO_OPT_C_GENERAL,
2924                 .group  = FIO_OPT_G_RUNTIME,
2925         },
2926         {
2927                 .name   = "ramp_time",
2928                 .lname  = "Ramp time",
2929                 .type   = FIO_OPT_STR_VAL_TIME,
2930                 .off1   = offsetof(struct thread_options, ramp_time),
2931                 .help   = "Ramp up time before measuring performance",
2932                 .is_seconds = 1,
2933                 .is_time = 1,
2934                 .category = FIO_OPT_C_GENERAL,
2935                 .group  = FIO_OPT_G_RUNTIME,
2936         },
2937         {
2938                 .name   = "clocksource",
2939                 .lname  = "Clock source",
2940                 .type   = FIO_OPT_STR,
2941                 .cb     = fio_clock_source_cb,
2942                 .off1   = offsetof(struct thread_options, clocksource),
2943                 .help   = "What type of timing source to use",
2944                 .category = FIO_OPT_C_GENERAL,
2945                 .group  = FIO_OPT_G_CLOCK,
2946                 .posval = {
2947 #ifdef CONFIG_GETTIMEOFDAY
2948                           { .ival = "gettimeofday",
2949                             .oval = CS_GTOD,
2950                             .help = "Use gettimeofday(2) for timing",
2951                           },
2952 #endif
2953 #ifdef CONFIG_CLOCK_GETTIME
2954                           { .ival = "clock_gettime",
2955                             .oval = CS_CGETTIME,
2956                             .help = "Use clock_gettime(2) for timing",
2957                           },
2958 #endif
2959 #ifdef ARCH_HAVE_CPU_CLOCK
2960                           { .ival = "cpu",
2961                             .oval = CS_CPUCLOCK,
2962                             .help = "Use CPU private clock",
2963                           },
2964 #endif
2965                 },
2966         },
2967         {
2968                 .name   = "mem",
2969                 .alias  = "iomem",
2970                 .lname  = "I/O Memory",
2971                 .type   = FIO_OPT_STR,
2972                 .cb     = str_mem_cb,
2973                 .off1   = offsetof(struct thread_options, mem_type),
2974                 .help   = "Backing type for IO buffers",
2975                 .def    = "malloc",
2976                 .category = FIO_OPT_C_IO,
2977                 .group  = FIO_OPT_G_INVALID,
2978                 .posval = {
2979                           { .ival = "malloc",
2980                             .oval = MEM_MALLOC,
2981                             .help = "Use malloc(3) for IO buffers",
2982                           },
2983 #ifndef CONFIG_NO_SHM
2984                           { .ival = "shm",
2985                             .oval = MEM_SHM,
2986                             .help = "Use shared memory segments for IO buffers",
2987                           },
2988 #ifdef FIO_HAVE_HUGETLB
2989                           { .ival = "shmhuge",
2990                             .oval = MEM_SHMHUGE,
2991                             .help = "Like shm, but use huge pages",
2992                           },
2993 #endif
2994 #endif
2995                           { .ival = "mmap",
2996                             .oval = MEM_MMAP,
2997                             .help = "Use mmap(2) (file or anon) for IO buffers",
2998                           },
2999                           { .ival = "mmapshared",
3000                             .oval = MEM_MMAPSHARED,
3001                             .help = "Like mmap, but use the shared flag",
3002                           },
3003 #ifdef FIO_HAVE_HUGETLB
3004                           { .ival = "mmaphuge",
3005                             .oval = MEM_MMAPHUGE,
3006                             .help = "Like mmap, but use huge pages",
3007                           },
3008 #endif
3009 #ifdef CONFIG_CUDA
3010                           { .ival = "cudamalloc",
3011                             .oval = MEM_CUDA_MALLOC,
3012                             .help = "Allocate GPU device memory for GPUDirect RDMA",
3013                           },
3014 #endif
3015                   },
3016         },
3017         {
3018                 .name   = "iomem_align",
3019                 .alias  = "mem_align",
3020                 .lname  = "I/O memory alignment",
3021                 .type   = FIO_OPT_INT,
3022                 .off1   = offsetof(struct thread_options, mem_align),
3023                 .minval = 0,
3024                 .help   = "IO memory buffer offset alignment",
3025                 .def    = "0",
3026                 .parent = "iomem",
3027                 .hide   = 1,
3028                 .category = FIO_OPT_C_IO,
3029                 .group  = FIO_OPT_G_INVALID,
3030         },
3031         {
3032                 .name   = "verify",
3033                 .lname  = "Verify",
3034                 .type   = FIO_OPT_STR,
3035                 .off1   = offsetof(struct thread_options, verify),
3036                 .help   = "Verify data written",
3037                 .def    = "0",
3038                 .category = FIO_OPT_C_IO,
3039                 .group  = FIO_OPT_G_VERIFY,
3040                 .posval = {
3041                           { .ival = "0",
3042                             .oval = VERIFY_NONE,
3043                             .help = "Don't do IO verification",
3044                           },
3045                           { .ival = "md5",
3046                             .oval = VERIFY_MD5,
3047                             .help = "Use md5 checksums for verification",
3048                           },
3049                           { .ival = "crc64",
3050                             .oval = VERIFY_CRC64,
3051                             .help = "Use crc64 checksums for verification",
3052                           },
3053                           { .ival = "crc32",
3054                             .oval = VERIFY_CRC32,
3055                             .help = "Use crc32 checksums for verification",
3056                           },
3057                           { .ival = "crc32c-intel",
3058                             .oval = VERIFY_CRC32C,
3059                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
3060                           },
3061                           { .ival = "crc32c",
3062                             .oval = VERIFY_CRC32C,
3063                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
3064                           },
3065                           { .ival = "crc16",
3066                             .oval = VERIFY_CRC16,
3067                             .help = "Use crc16 checksums for verification",
3068                           },
3069                           { .ival = "crc7",
3070                             .oval = VERIFY_CRC7,
3071                             .help = "Use crc7 checksums for verification",
3072                           },
3073                           { .ival = "sha1",
3074                             .oval = VERIFY_SHA1,
3075                             .help = "Use sha1 checksums for verification",
3076                           },
3077                           { .ival = "sha256",
3078                             .oval = VERIFY_SHA256,
3079                             .help = "Use sha256 checksums for verification",
3080                           },
3081                           { .ival = "sha512",
3082                             .oval = VERIFY_SHA512,
3083                             .help = "Use sha512 checksums for verification",
3084                           },
3085                           { .ival = "sha3-224",
3086                             .oval = VERIFY_SHA3_224,
3087                             .help = "Use sha3-224 checksums for verification",
3088                           },
3089                           { .ival = "sha3-256",
3090                             .oval = VERIFY_SHA3_256,
3091                             .help = "Use sha3-256 checksums for verification",
3092                           },
3093                           { .ival = "sha3-384",
3094                             .oval = VERIFY_SHA3_384,
3095                             .help = "Use sha3-384 checksums for verification",
3096                           },
3097                           { .ival = "sha3-512",
3098                             .oval = VERIFY_SHA3_512,
3099                             .help = "Use sha3-512 checksums for verification",
3100                           },
3101                           { .ival = "xxhash",
3102                             .oval = VERIFY_XXHASH,
3103                             .help = "Use xxhash checksums for verification",
3104                           },
3105                           /* Meta information was included into verify_header,
3106                            * 'meta' verification is implied by default. */
3107                           { .ival = "meta",
3108                             .oval = VERIFY_HDR_ONLY,
3109                             .help = "Use io information for verification. "
3110                                     "Now is implied by default, thus option is obsolete, "
3111                                     "don't use it",
3112                           },
3113                           { .ival = "pattern",
3114                             .oval = VERIFY_PATTERN_NO_HDR,
3115                             .help = "Verify strict pattern",
3116                           },
3117                           {
3118                             .ival = "null",
3119                             .oval = VERIFY_NULL,
3120                             .help = "Pretend to verify",
3121                           },
3122                 },
3123         },
3124         {
3125                 .name   = "do_verify",
3126                 .lname  = "Perform verify step",
3127                 .type   = FIO_OPT_BOOL,
3128                 .off1   = offsetof(struct thread_options, do_verify),
3129                 .help   = "Run verification stage after write",
3130                 .def    = "1",
3131                 .parent = "verify",
3132                 .hide   = 1,
3133                 .category = FIO_OPT_C_IO,
3134                 .group  = FIO_OPT_G_VERIFY,
3135         },
3136         {
3137                 .name   = "verifysort",
3138                 .lname  = "Verify sort",
3139                 .type   = FIO_OPT_SOFT_DEPRECATED,
3140                 .category = FIO_OPT_C_IO,
3141                 .group  = FIO_OPT_G_VERIFY,
3142         },
3143         {
3144                 .name   = "verifysort_nr",
3145                 .lname  = "Verify Sort Nr",
3146                 .type   = FIO_OPT_SOFT_DEPRECATED,
3147                 .category = FIO_OPT_C_IO,
3148                 .group  = FIO_OPT_G_VERIFY,
3149         },
3150         {
3151                 .name   = "verify_interval",
3152                 .lname  = "Verify interval",
3153                 .type   = FIO_OPT_INT,
3154                 .off1   = offsetof(struct thread_options, verify_interval),
3155                 .minval = 2 * sizeof(struct verify_header),
3156                 .help   = "Store verify buffer header every N bytes",
3157                 .parent = "verify",
3158                 .hide   = 1,
3159                 .interval = 2 * sizeof(struct verify_header),
3160                 .category = FIO_OPT_C_IO,
3161                 .group  = FIO_OPT_G_VERIFY,
3162         },
3163         {
3164                 .name   = "verify_offset",
3165                 .lname  = "Verify offset",
3166                 .type   = FIO_OPT_INT,
3167                 .help   = "Offset verify header location by N bytes",
3168                 .off1   = offsetof(struct thread_options, verify_offset),
3169                 .minval = sizeof(struct verify_header),
3170                 .parent = "verify",
3171                 .hide   = 1,
3172                 .category = FIO_OPT_C_IO,
3173                 .group  = FIO_OPT_G_VERIFY,
3174         },
3175         {
3176                 .name   = "verify_pattern",
3177                 .lname  = "Verify pattern",
3178                 .type   = FIO_OPT_STR,
3179                 .cb     = str_verify_pattern_cb,
3180                 .off1   = offsetof(struct thread_options, verify_pattern),
3181                 .help   = "Fill pattern for IO buffers",
3182                 .parent = "verify",
3183                 .hide   = 1,
3184                 .category = FIO_OPT_C_IO,
3185                 .group  = FIO_OPT_G_VERIFY,
3186         },
3187         {
3188                 .name   = "verify_fatal",
3189                 .lname  = "Verify fatal",
3190                 .type   = FIO_OPT_BOOL,
3191                 .off1   = offsetof(struct thread_options, verify_fatal),
3192                 .def    = "0",
3193                 .help   = "Exit on a single verify failure, don't continue",
3194                 .parent = "verify",
3195                 .hide   = 1,
3196                 .category = FIO_OPT_C_IO,
3197                 .group  = FIO_OPT_G_VERIFY,
3198         },
3199         {
3200                 .name   = "verify_dump",
3201                 .lname  = "Verify dump",
3202                 .type   = FIO_OPT_BOOL,
3203                 .off1   = offsetof(struct thread_options, verify_dump),
3204                 .def    = "0",
3205                 .help   = "Dump contents of good and bad blocks on failure",
3206                 .parent = "verify",
3207                 .hide   = 1,
3208                 .category = FIO_OPT_C_IO,
3209                 .group  = FIO_OPT_G_VERIFY,
3210         },
3211         {
3212                 .name   = "verify_async",
3213                 .lname  = "Verify asynchronously",
3214                 .type   = FIO_OPT_INT,
3215                 .off1   = offsetof(struct thread_options, verify_async),
3216                 .def    = "0",
3217                 .help   = "Number of async verifier threads to use",
3218                 .parent = "verify",
3219                 .hide   = 1,
3220                 .category = FIO_OPT_C_IO,
3221                 .group  = FIO_OPT_G_VERIFY,
3222         },
3223         {
3224                 .name   = "verify_backlog",
3225                 .lname  = "Verify backlog",
3226                 .type   = FIO_OPT_STR_VAL,
3227                 .off1   = offsetof(struct thread_options, verify_backlog),
3228                 .help   = "Verify after this number of blocks are written",
3229                 .parent = "verify",
3230                 .hide   = 1,
3231                 .category = FIO_OPT_C_IO,
3232                 .group  = FIO_OPT_G_VERIFY,
3233         },
3234         {
3235                 .name   = "verify_backlog_batch",
3236                 .lname  = "Verify backlog batch",
3237                 .type   = FIO_OPT_INT,
3238                 .off1   = offsetof(struct thread_options, verify_batch),
3239                 .help   = "Verify this number of IO blocks",
3240                 .parent = "verify",
3241                 .hide   = 1,
3242                 .category = FIO_OPT_C_IO,
3243                 .group  = FIO_OPT_G_VERIFY,
3244         },
3245 #ifdef FIO_HAVE_CPU_AFFINITY
3246         {
3247                 .name   = "verify_async_cpus",
3248                 .lname  = "Async verify CPUs",
3249                 .type   = FIO_OPT_STR,
3250                 .cb     = str_verify_cpus_allowed_cb,
3251                 .off1   = offsetof(struct thread_options, verify_cpumask),
3252                 .help   = "Set CPUs allowed for async verify threads",
3253                 .parent = "verify_async",
3254                 .hide   = 1,
3255                 .category = FIO_OPT_C_IO,
3256                 .group  = FIO_OPT_G_VERIFY,
3257         },
3258 #else
3259         {
3260                 .name   = "verify_async_cpus",
3261                 .lname  = "Async verify CPUs",
3262                 .type   = FIO_OPT_UNSUPPORTED,
3263                 .help   = "Your platform does not support CPU affinities",
3264         },
3265 #endif
3266         {
3267                 .name   = "experimental_verify",
3268                 .lname  = "Experimental Verify",
3269                 .off1   = offsetof(struct thread_options, experimental_verify),
3270                 .type   = FIO_OPT_BOOL,
3271                 .help   = "Enable experimental verification",
3272                 .parent = "verify",
3273                 .category = FIO_OPT_C_IO,
3274                 .group  = FIO_OPT_G_VERIFY,
3275         },
3276         {
3277                 .name   = "verify_state_load",
3278                 .lname  = "Load verify state",
3279                 .off1   = offsetof(struct thread_options, verify_state),
3280                 .type   = FIO_OPT_BOOL,
3281                 .help   = "Load verify termination state",
3282                 .parent = "verify",
3283                 .category = FIO_OPT_C_IO,
3284                 .group  = FIO_OPT_G_VERIFY,
3285         },
3286         {
3287                 .name   = "verify_state_save",
3288                 .lname  = "Save verify state",
3289                 .off1   = offsetof(struct thread_options, verify_state_save),
3290                 .type   = FIO_OPT_BOOL,
3291                 .def    = "1",
3292                 .help   = "Save verify state on termination",
3293                 .parent = "verify",
3294                 .category = FIO_OPT_C_IO,
3295                 .group  = FIO_OPT_G_VERIFY,
3296         },
3297 #ifdef FIO_HAVE_TRIM
3298         {
3299                 .name   = "trim_percentage",
3300                 .lname  = "Trim percentage",
3301                 .type   = FIO_OPT_INT,
3302                 .off1   = offsetof(struct thread_options, trim_percentage),
3303                 .minval = 0,
3304                 .maxval = 100,
3305                 .help   = "Number of verify blocks to trim (i.e., discard)",
3306                 .parent = "verify",
3307                 .def    = "0",
3308                 .interval = 1,
3309                 .hide   = 1,
3310                 .category = FIO_OPT_C_IO,
3311                 .group  = FIO_OPT_G_TRIM,
3312         },
3313         {
3314                 .name   = "trim_verify_zero",
3315                 .lname  = "Verify trim zero",
3316                 .type   = FIO_OPT_BOOL,
3317                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3318                 .off1   = offsetof(struct thread_options, trim_zero),
3319                 .parent = "trim_percentage",
3320                 .hide   = 1,
3321                 .def    = "1",
3322                 .category = FIO_OPT_C_IO,
3323                 .group  = FIO_OPT_G_TRIM,
3324         },
3325         {
3326                 .name   = "trim_backlog",
3327                 .lname  = "Trim backlog",
3328                 .type   = FIO_OPT_STR_VAL,
3329                 .off1   = offsetof(struct thread_options, trim_backlog),
3330                 .help   = "Trim after this number of blocks are written",
3331                 .parent = "trim_percentage",
3332                 .hide   = 1,
3333                 .interval = 1,
3334                 .category = FIO_OPT_C_IO,
3335                 .group  = FIO_OPT_G_TRIM,
3336         },
3337         {
3338                 .name   = "trim_backlog_batch",
3339                 .lname  = "Trim backlog batch",
3340                 .type   = FIO_OPT_INT,
3341                 .off1   = offsetof(struct thread_options, trim_batch),
3342                 .help   = "Trim this number of IO blocks",
3343                 .parent = "trim_percentage",
3344                 .hide   = 1,
3345                 .interval = 1,
3346                 .category = FIO_OPT_C_IO,
3347                 .group  = FIO_OPT_G_TRIM,
3348         },
3349 #else
3350         {
3351                 .name   = "trim_percentage",
3352                 .lname  = "Trim percentage",
3353                 .type   = FIO_OPT_UNSUPPORTED,
3354                 .help   = "Fio does not support TRIM on your platform",
3355         },
3356         {
3357                 .name   = "trim_verify_zero",
3358                 .lname  = "Verify trim zero",
3359                 .type   = FIO_OPT_UNSUPPORTED,
3360                 .help   = "Fio does not support TRIM on your platform",
3361         },
3362         {
3363                 .name   = "trim_backlog",
3364                 .lname  = "Trim backlog",
3365                 .type   = FIO_OPT_UNSUPPORTED,
3366                 .help   = "Fio does not support TRIM on your platform",
3367         },
3368         {
3369                 .name   = "trim_backlog_batch",
3370                 .lname  = "Trim backlog batch",
3371                 .type   = FIO_OPT_UNSUPPORTED,
3372                 .help   = "Fio does not support TRIM on your platform",
3373         },
3374 #endif
3375         {
3376                 .name   = "write_iolog",
3377                 .lname  = "Write I/O log",
3378                 .type   = FIO_OPT_STR_STORE,
3379                 .off1   = offsetof(struct thread_options, write_iolog_file),
3380                 .help   = "Store IO pattern to file",
3381                 .category = FIO_OPT_C_IO,
3382                 .group  = FIO_OPT_G_IOLOG,
3383         },
3384         {
3385                 .name   = "read_iolog",
3386                 .lname  = "Read I/O log",
3387                 .type   = FIO_OPT_STR_STORE,
3388                 .off1   = offsetof(struct thread_options, read_iolog_file),
3389                 .help   = "Playback IO pattern from file",
3390                 .category = FIO_OPT_C_IO,
3391                 .group  = FIO_OPT_G_IOLOG,
3392         },
3393         {
3394                 .name   = "read_iolog_chunked",
3395                 .lname  = "Read I/O log in parts",
3396                 .type   = FIO_OPT_BOOL,
3397                 .off1   = offsetof(struct thread_options, read_iolog_chunked),
3398                 .def    = "0",
3399                 .parent = "read_iolog",
3400                 .help   = "Parse IO pattern in chunks",
3401                 .category = FIO_OPT_C_IO,
3402                 .group  = FIO_OPT_G_IOLOG,
3403         },
3404         {
3405                 .name   = "replay_no_stall",
3406                 .lname  = "Don't stall on replay",
3407                 .type   = FIO_OPT_BOOL,
3408                 .off1   = offsetof(struct thread_options, no_stall),
3409                 .def    = "0",
3410                 .parent = "read_iolog",
3411                 .hide   = 1,
3412                 .help   = "Playback IO pattern file as fast as possible without stalls",
3413                 .category = FIO_OPT_C_IO,
3414                 .group  = FIO_OPT_G_IOLOG,
3415         },
3416         {
3417                 .name   = "replay_redirect",
3418                 .lname  = "Redirect device for replay",
3419                 .type   = FIO_OPT_STR_STORE,
3420                 .off1   = offsetof(struct thread_options, replay_redirect),
3421                 .parent = "read_iolog",
3422                 .hide   = 1,
3423                 .help   = "Replay all I/O onto this device, regardless of trace device",
3424                 .category = FIO_OPT_C_IO,
3425                 .group  = FIO_OPT_G_IOLOG,
3426         },
3427         {
3428                 .name   = "replay_scale",
3429                 .lname  = "Replace offset scale factor",
3430                 .type   = FIO_OPT_INT,
3431                 .off1   = offsetof(struct thread_options, replay_scale),
3432                 .parent = "read_iolog",
3433                 .def    = "1",
3434                 .help   = "Align offsets to this blocksize",
3435                 .category = FIO_OPT_C_IO,
3436                 .group  = FIO_OPT_G_IOLOG,
3437         },
3438         {
3439                 .name   = "replay_align",
3440                 .lname  = "Replace alignment",
3441                 .type   = FIO_OPT_INT,
3442                 .off1   = offsetof(struct thread_options, replay_align),
3443                 .parent = "read_iolog",
3444                 .help   = "Scale offset down by this factor",
3445                 .category = FIO_OPT_C_IO,
3446                 .group  = FIO_OPT_G_IOLOG,
3447                 .pow2   = 1,
3448         },
3449         {
3450                 .name   = "replay_time_scale",
3451                 .lname  = "Replay Time Scale",
3452                 .type   = FIO_OPT_INT,
3453                 .off1   = offsetof(struct thread_options, replay_time_scale),
3454                 .def    = "100",
3455                 .minval = 1,
3456                 .parent = "read_iolog",
3457                 .hide   = 1,
3458                 .help   = "Scale time for replay events",
3459                 .category = FIO_OPT_C_IO,
3460                 .group  = FIO_OPT_G_IOLOG,
3461         },
3462         {
3463                 .name   = "replay_skip",
3464                 .lname  = "Replay Skip",
3465                 .type   = FIO_OPT_STR,
3466                 .cb     = str_replay_skip_cb,
3467                 .off1   = offsetof(struct thread_options, replay_skip),
3468                 .parent = "read_iolog",
3469                 .help   = "Skip certain IO types (read,write,trim,flush)",
3470                 .category = FIO_OPT_C_IO,
3471                 .group  = FIO_OPT_G_IOLOG,
3472         },
3473         {
3474                 .name   = "merge_blktrace_file",
3475                 .lname  = "Merged blktrace output filename",
3476                 .type   = FIO_OPT_STR_STORE,
3477                 .off1   = offsetof(struct thread_options, merge_blktrace_file),
3478                 .help   = "Merged blktrace output filename",
3479                 .category = FIO_OPT_C_IO,
3480                 .group = FIO_OPT_G_IOLOG,
3481         },
3482         {
3483                 .name   = "merge_blktrace_scalars",
3484                 .lname  = "Percentage to scale each trace",
3485                 .type   = FIO_OPT_FLOAT_LIST,
3486                 .off1   = offsetof(struct thread_options, merge_blktrace_scalars),
3487                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3488                 .help   = "Percentage to scale each trace",
3489                 .category = FIO_OPT_C_IO,
3490                 .group  = FIO_OPT_G_IOLOG,
3491         },
3492         {
3493                 .name   = "merge_blktrace_iters",
3494                 .lname  = "Number of iterations to run per trace",
3495                 .type   = FIO_OPT_FLOAT_LIST,
3496                 .off1   = offsetof(struct thread_options, merge_blktrace_iters),
3497                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3498                 .help   = "Number of iterations to run per trace",
3499                 .category = FIO_OPT_C_IO,
3500                 .group  = FIO_OPT_G_IOLOG,
3501         },
3502         {
3503                 .name   = "exec_prerun",
3504                 .lname  = "Pre-execute runnable",
3505                 .type   = FIO_OPT_STR_STORE,
3506                 .off1   = offsetof(struct thread_options, exec_prerun),
3507                 .help   = "Execute this file prior to running job",
3508                 .category = FIO_OPT_C_GENERAL,
3509                 .group  = FIO_OPT_G_INVALID,
3510         },
3511         {
3512                 .name   = "exec_postrun",
3513                 .lname  = "Post-execute runnable",
3514                 .type   = FIO_OPT_STR_STORE,
3515                 .off1   = offsetof(struct thread_options, exec_postrun),
3516                 .help   = "Execute this file after running job",
3517                 .category = FIO_OPT_C_GENERAL,
3518                 .group  = FIO_OPT_G_INVALID,
3519         },
3520 #ifdef FIO_HAVE_IOSCHED_SWITCH
3521         {
3522                 .name   = "ioscheduler",
3523                 .lname  = "I/O scheduler",
3524                 .type   = FIO_OPT_STR_STORE,
3525                 .off1   = offsetof(struct thread_options, ioscheduler),
3526                 .help   = "Use this IO scheduler on the backing device",
3527                 .category = FIO_OPT_C_FILE,
3528                 .group  = FIO_OPT_G_INVALID,
3529         },
3530 #else
3531         {
3532                 .name   = "ioscheduler",
3533                 .lname  = "I/O scheduler",
3534                 .type   = FIO_OPT_UNSUPPORTED,
3535                 .help   = "Your platform does not support IO scheduler switching",
3536         },
3537 #endif
3538         {
3539                 .name   = "zonemode",
3540                 .lname  = "Zone mode",
3541                 .help   = "Mode for the zonesize, zonerange and zoneskip parameters",
3542                 .type   = FIO_OPT_STR,
3543                 .off1   = offsetof(struct thread_options, zone_mode),
3544                 .def    = "none",
3545                 .category = FIO_OPT_C_IO,
3546                 .group  = FIO_OPT_G_ZONE,
3547                 .posval = {
3548                            { .ival = "none",
3549                              .oval = ZONE_MODE_NONE,
3550                              .help = "no zoning",
3551                            },
3552                            { .ival = "strided",
3553                              .oval = ZONE_MODE_STRIDED,
3554                              .help = "strided mode - random I/O is restricted to a single zone",
3555                            },
3556                            { .ival = "zbd",
3557                              .oval = ZONE_MODE_ZBD,
3558                              .help = "zoned block device mode - random I/O selects one of multiple zones randomly",
3559                            },
3560                 },
3561         },
3562         {
3563                 .name   = "zonesize",
3564                 .lname  = "Zone size",
3565                 .type   = FIO_OPT_STR_VAL,
3566                 .off1   = offsetof(struct thread_options, zone_size),
3567                 .help   = "Amount of data to read per zone",
3568                 .def    = "0",
3569                 .interval = 1024 * 1024,
3570                 .category = FIO_OPT_C_IO,
3571                 .group  = FIO_OPT_G_ZONE,
3572         },
3573         {
3574                 .name   = "zonecapacity",
3575                 .lname  = "Zone capacity",
3576                 .type   = FIO_OPT_STR_VAL,
3577                 .off1   = offsetof(struct thread_options, zone_capacity),
3578                 .help   = "Capacity per zone",
3579                 .def    = "0",
3580                 .interval = 1024 * 1024,
3581                 .category = FIO_OPT_C_IO,
3582                 .group  = FIO_OPT_G_ZONE,
3583         },
3584         {
3585                 .name   = "zonerange",
3586                 .lname  = "Zone range",
3587                 .type   = FIO_OPT_STR_VAL,
3588                 .off1   = offsetof(struct thread_options, zone_range),
3589                 .help   = "Give size of an IO zone",
3590                 .def    = "0",
3591                 .interval = 1024 * 1024,
3592                 .category = FIO_OPT_C_IO,
3593                 .group  = FIO_OPT_G_ZONE,
3594         },
3595         {
3596                 .name   = "zoneskip",
3597                 .lname  = "Zone skip",
3598                 .type   = FIO_OPT_STR_VAL_ZONE,
3599                 .cb     = str_zoneskip_cb,
3600                 .off1   = offsetof(struct thread_options, zone_skip),
3601                 .help   = "Space between IO zones",
3602                 .def    = "0",
3603                 .category = FIO_OPT_C_IO,
3604                 .group  = FIO_OPT_G_ZONE,
3605         },
3606         {
3607                 .name   = "read_beyond_wp",
3608                 .lname  = "Allow reads beyond the zone write pointer",
3609                 .type   = FIO_OPT_BOOL,
3610                 .off1   = offsetof(struct thread_options, read_beyond_wp),
3611                 .help   = "Allow reads beyond the zone write pointer",
3612                 .def    = "0",
3613                 .category = FIO_OPT_C_IO,
3614                 .group  = FIO_OPT_G_INVALID,
3615         },
3616         {
3617                 .name   = "max_open_zones",
3618                 .lname  = "Per device/file maximum number of open zones",
3619                 .type   = FIO_OPT_INT,
3620                 .off1   = offsetof(struct thread_options, max_open_zones),
3621                 .maxval = ZBD_MAX_OPEN_ZONES,
3622                 .help   = "Limit on the number of simultaneously opened sequential write zones with zonemode=zbd",
3623                 .def    = "0",
3624                 .category = FIO_OPT_C_IO,
3625                 .group  = FIO_OPT_G_INVALID,
3626         },
3627         {
3628                 .name   = "job_max_open_zones",
3629                 .lname  = "Job maximum number of open zones",
3630                 .type   = FIO_OPT_INT,
3631                 .off1   = offsetof(struct thread_options, job_max_open_zones),
3632                 .maxval = ZBD_MAX_OPEN_ZONES,
3633                 .help   = "Limit on the number of simultaneously opened sequential write zones with zonemode=zbd by one thread/process",
3634                 .def    = "0",
3635                 .category = FIO_OPT_C_IO,
3636                 .group  = FIO_OPT_G_INVALID,
3637         },
3638         {
3639                 .name   = "ignore_zone_limits",
3640                 .lname  = "Ignore zone resource limits",
3641                 .type   = FIO_OPT_BOOL,
3642                 .off1   = offsetof(struct thread_options, ignore_zone_limits),
3643                 .def    = "0",
3644                 .help   = "Ignore the zone resource limits (max open/active zones) reported by the device",
3645                 .category = FIO_OPT_C_IO,
3646                 .group  = FIO_OPT_G_INVALID,
3647         },
3648         {
3649                 .name   = "zone_reset_threshold",
3650                 .lname  = "Zone reset threshold",
3651                 .help   = "Zoned block device reset threshold",
3652                 .type   = FIO_OPT_FLOAT_LIST,
3653                 .maxlen = 1,
3654                 .off1   = offsetof(struct thread_options, zrt),
3655                 .minfp  = 0,
3656                 .maxfp  = 1,
3657                 .category = FIO_OPT_C_IO,
3658                 .group  = FIO_OPT_G_ZONE,
3659         },
3660         {
3661                 .name   = "zone_reset_frequency",
3662                 .lname  = "Zone reset frequency",
3663                 .help   = "Zoned block device zone reset frequency in HZ",
3664                 .type   = FIO_OPT_FLOAT_LIST,
3665                 .maxlen = 1,
3666                 .off1   = offsetof(struct thread_options, zrf),
3667                 .minfp  = 0,
3668                 .maxfp  = 1,
3669                 .category = FIO_OPT_C_IO,
3670                 .group  = FIO_OPT_G_ZONE,
3671         },
3672         {
3673                 .name   = "fdp",
3674                 .lname  = "Flexible data placement",
3675                 .type   = FIO_OPT_BOOL,
3676                 .off1   = offsetof(struct thread_options, fdp),
3677                 .help   = "Use Data placement directive (FDP)",
3678                 .def    = "0",
3679                 .category = FIO_OPT_C_IO,
3680                 .group  = FIO_OPT_G_INVALID,
3681         },
3682         {
3683                 .name   = "fdp_pli",
3684                 .lname  = "FDP Placement ID indicies",
3685                 .type   = FIO_OPT_STR,
3686                 .cb     = str_fdp_pli_cb,
3687                 .off1   = offsetof(struct thread_options, fdp_plis),
3688                 .help   = "Sets which placement ids to use (defaults to all)",
3689                 .hide   = 1,
3690                 .category = FIO_OPT_C_IO,
3691                 .group  = FIO_OPT_G_INVALID,
3692         },
3693         {
3694                 .name   = "lockmem",
3695                 .lname  = "Lock memory",
3696                 .type   = FIO_OPT_STR_VAL,
3697                 .off1   = offsetof(struct thread_options, lockmem),
3698                 .help   = "Lock down this amount of memory (per worker)",
3699                 .def    = "0",
3700                 .interval = 1024 * 1024,
3701                 .category = FIO_OPT_C_GENERAL,
3702                 .group  = FIO_OPT_G_INVALID,
3703         },
3704         {
3705                 .name   = "rwmixread",
3706                 .lname  = "Read/write mix read",
3707                 .type   = FIO_OPT_INT,
3708                 .cb     = str_rwmix_read_cb,
3709                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3710                 .maxval = 100,
3711                 .help   = "Percentage of mixed workload that is reads",
3712                 .def    = "50",
3713                 .interval = 5,
3714                 .inverse = "rwmixwrite",
3715                 .category = FIO_OPT_C_IO,
3716                 .group  = FIO_OPT_G_RWMIX,
3717         },
3718         {
3719                 .name   = "rwmixwrite",
3720                 .lname  = "Read/write mix write",
3721                 .type   = FIO_OPT_INT,
3722                 .cb     = str_rwmix_write_cb,
3723                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3724                 .maxval = 100,
3725                 .help   = "Percentage of mixed workload that is writes",
3726                 .def    = "50",
3727                 .interval = 5,
3728                 .inverse = "rwmixread",
3729                 .category = FIO_OPT_C_IO,
3730                 .group  = FIO_OPT_G_RWMIX,
3731         },
3732         {
3733                 .name   = "rwmixcycle",
3734                 .lname  = "Read/write mix cycle",
3735                 .type   = FIO_OPT_DEPRECATED,
3736                 .category = FIO_OPT_C_IO,
3737                 .group  = FIO_OPT_G_RWMIX,
3738         },
3739         {
3740                 .name   = "nice",
3741                 .lname  = "Nice",
3742                 .type   = FIO_OPT_INT,
3743                 .off1   = offsetof(struct thread_options, nice),
3744                 .help   = "Set job CPU nice value",
3745                 .minval = -20,
3746                 .maxval = 19,
3747                 .def    = "0",
3748                 .interval = 1,
3749                 .category = FIO_OPT_C_GENERAL,
3750                 .group  = FIO_OPT_G_CRED,
3751         },
3752 #ifdef FIO_HAVE_IOPRIO
3753         {
3754                 .name   = "prio",
3755                 .lname  = "I/O nice priority",
3756                 .type   = FIO_OPT_INT,
3757                 .off1   = offsetof(struct thread_options, ioprio),
3758                 .help   = "Set job IO priority value",
3759                 .minval = IOPRIO_MIN_PRIO,
3760                 .maxval = IOPRIO_MAX_PRIO,
3761                 .interval = 1,
3762                 .category = FIO_OPT_C_GENERAL,
3763                 .group  = FIO_OPT_G_CRED,
3764         },
3765 #else
3766         {
3767                 .name   = "prio",
3768                 .lname  = "I/O nice priority",
3769                 .type   = FIO_OPT_UNSUPPORTED,
3770                 .help   = "Your platform does not support IO priorities",
3771         },
3772 #endif
3773 #ifdef FIO_HAVE_IOPRIO_CLASS
3774 #ifndef FIO_HAVE_IOPRIO
3775 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3776 #endif
3777         {
3778                 .name   = "prioclass",
3779                 .lname  = "I/O nice priority class",
3780                 .type   = FIO_OPT_INT,
3781                 .off1   = offsetof(struct thread_options, ioprio_class),
3782                 .help   = "Set job IO priority class",
3783                 .minval = IOPRIO_MIN_PRIO_CLASS,
3784                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3785                 .interval = 1,
3786                 .category = FIO_OPT_C_GENERAL,
3787                 .group  = FIO_OPT_G_CRED,
3788         },
3789 #else
3790         {
3791                 .name   = "prioclass",
3792                 .lname  = "I/O nice priority class",
3793                 .type   = FIO_OPT_UNSUPPORTED,
3794                 .help   = "Your platform does not support IO priority classes",
3795         },
3796 #endif
3797         {
3798                 .name   = "thinktime",
3799                 .lname  = "Thinktime",
3800                 .type   = FIO_OPT_INT,
3801                 .off1   = offsetof(struct thread_options, thinktime),
3802                 .help   = "Idle time between IO buffers (usec)",
3803                 .def    = "0",
3804                 .is_time = 1,
3805                 .category = FIO_OPT_C_IO,
3806                 .group  = FIO_OPT_G_THINKTIME,
3807         },
3808         {
3809                 .name   = "thinktime_spin",
3810                 .lname  = "Thinktime spin",
3811                 .type   = FIO_OPT_INT,
3812                 .off1   = offsetof(struct thread_options, thinktime_spin),
3813                 .help   = "Start think time by spinning this amount (usec)",
3814                 .def    = "0",
3815                 .is_time = 1,
3816                 .parent = "thinktime",
3817                 .hide   = 1,
3818                 .category = FIO_OPT_C_IO,
3819                 .group  = FIO_OPT_G_THINKTIME,
3820         },
3821         {
3822                 .name   = "thinktime_blocks",
3823                 .lname  = "Thinktime blocks",
3824                 .type   = FIO_OPT_INT,
3825                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3826                 .help   = "IO buffer period between 'thinktime'",
3827                 .def    = "1",
3828                 .parent = "thinktime",
3829                 .hide   = 1,
3830                 .category = FIO_OPT_C_IO,
3831                 .group  = FIO_OPT_G_THINKTIME,
3832         },
3833         {
3834                 .name   = "thinktime_blocks_type",
3835                 .lname  = "Thinktime blocks type",
3836                 .type   = FIO_OPT_STR,
3837                 .off1   = offsetof(struct thread_options, thinktime_blocks_type),
3838                 .help   = "How thinktime_blocks takes effect",
3839                 .def    = "complete",
3840                 .category = FIO_OPT_C_IO,
3841                 .group  = FIO_OPT_G_THINKTIME,
3842                 .posval = {
3843                           { .ival = "complete",
3844                             .oval = THINKTIME_BLOCKS_TYPE_COMPLETE,
3845                             .help = "thinktime_blocks takes effect at the completion side",
3846                           },
3847                           {
3848                             .ival = "issue",
3849                             .oval = THINKTIME_BLOCKS_TYPE_ISSUE,
3850                             .help = "thinktime_blocks takes effect at the issue side",
3851                           },
3852                 },
3853                 .parent = "thinktime",
3854         },
3855         {
3856                 .name   = "thinktime_iotime",
3857                 .lname  = "Thinktime interval",
3858                 .type   = FIO_OPT_INT,
3859                 .off1   = offsetof(struct thread_options, thinktime_iotime),
3860                 .help   = "IO time interval between 'thinktime'",
3861                 .def    = "0",
3862                 .parent = "thinktime",
3863                 .hide   = 1,
3864                 .is_seconds = 1,
3865                 .is_time = 1,
3866                 .category = FIO_OPT_C_IO,
3867                 .group  = FIO_OPT_G_THINKTIME,
3868         },
3869         {
3870                 .name   = "rate",
3871                 .lname  = "I/O rate",
3872                 .type   = FIO_OPT_ULL,
3873                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3874                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3875                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3876                 .help   = "Set bandwidth rate",
3877                 .category = FIO_OPT_C_IO,
3878                 .group  = FIO_OPT_G_RATE,
3879         },
3880         {
3881                 .name   = "rate_min",
3882                 .alias  = "ratemin",
3883                 .lname  = "I/O min rate",
3884                 .type   = FIO_OPT_ULL,
3885                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3886                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3887                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3888                 .help   = "Job must meet this rate or it will be shutdown",
3889                 .parent = "rate",
3890                 .hide   = 1,
3891                 .category = FIO_OPT_C_IO,
3892                 .group  = FIO_OPT_G_RATE,
3893         },
3894         {
3895                 .name   = "rate_iops",
3896                 .lname  = "I/O rate IOPS",
3897                 .type   = FIO_OPT_INT,
3898                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3899                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3900                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3901                 .help   = "Limit IO used to this number of IO operations/sec",
3902                 .hide   = 1,
3903                 .category = FIO_OPT_C_IO,
3904                 .group  = FIO_OPT_G_RATE,
3905         },
3906         {
3907                 .name   = "rate_iops_min",
3908                 .lname  = "I/O min rate IOPS",
3909                 .type   = FIO_OPT_INT,
3910                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3911                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3912                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3913                 .help   = "Job must meet this rate or it will be shut down",
3914                 .parent = "rate_iops",
3915                 .hide   = 1,
3916                 .category = FIO_OPT_C_IO,
3917                 .group  = FIO_OPT_G_RATE,
3918         },
3919         {
3920                 .name   = "rate_process",
3921                 .lname  = "Rate Process",
3922                 .type   = FIO_OPT_STR,
3923                 .off1   = offsetof(struct thread_options, rate_process),
3924                 .help   = "What process controls how rated IO is managed",
3925                 .def    = "linear",
3926                 .category = FIO_OPT_C_IO,
3927                 .group  = FIO_OPT_G_RATE,
3928                 .posval = {
3929                           { .ival = "linear",
3930                             .oval = RATE_PROCESS_LINEAR,
3931                             .help = "Linear rate of IO",
3932                           },
3933                           {
3934                             .ival = "poisson",
3935                             .oval = RATE_PROCESS_POISSON,
3936                             .help = "Rate follows Poisson process",
3937                           },
3938                 },
3939                 .parent = "rate",
3940         },
3941         {
3942                 .name   = "rate_cycle",
3943                 .alias  = "ratecycle",
3944                 .lname  = "I/O rate cycle",
3945                 .type   = FIO_OPT_INT,
3946                 .off1   = offsetof(struct thread_options, ratecycle),
3947                 .help   = "Window average for rate limits (msec)",
3948                 .def    = "1000",
3949                 .parent = "rate",
3950                 .hide   = 1,
3951                 .category = FIO_OPT_C_IO,
3952                 .group  = FIO_OPT_G_RATE,
3953         },
3954         {
3955                 .name   = "rate_ignore_thinktime",
3956                 .lname  = "Rate ignore thinktime",
3957                 .type   = FIO_OPT_BOOL,
3958                 .off1   = offsetof(struct thread_options, rate_ign_think),
3959                 .help   = "Rated IO ignores thinktime settings",
3960                 .parent = "rate",
3961                 .category = FIO_OPT_C_IO,
3962                 .group  = FIO_OPT_G_RATE,
3963         },
3964         {
3965                 .name   = "max_latency",
3966                 .lname  = "Max Latency (usec)",
3967                 .type   = FIO_OPT_ULL,
3968                 .off1   = offsetof(struct thread_options, max_latency[DDIR_READ]),
3969                 .off2   = offsetof(struct thread_options, max_latency[DDIR_WRITE]),
3970                 .off3   = offsetof(struct thread_options, max_latency[DDIR_TRIM]),
3971                 .help   = "Maximum tolerated IO latency (usec)",
3972                 .is_time = 1,
3973                 .category = FIO_OPT_C_IO,
3974                 .group = FIO_OPT_G_LATPROF,
3975         },
3976         {
3977                 .name   = "latency_target",
3978                 .lname  = "Latency Target (usec)",
3979                 .type   = FIO_OPT_STR_VAL_TIME,
3980                 .off1   = offsetof(struct thread_options, latency_target),
3981                 .help   = "Ramp to max queue depth supporting this latency",
3982                 .is_time = 1,
3983                 .category = FIO_OPT_C_IO,
3984                 .group  = FIO_OPT_G_LATPROF,
3985         },
3986         {
3987                 .name   = "latency_window",
3988                 .lname  = "Latency Window (usec)",
3989                 .type   = FIO_OPT_STR_VAL_TIME,
3990                 .off1   = offsetof(struct thread_options, latency_window),
3991                 .help   = "Time to sustain latency_target",
3992                 .is_time = 1,
3993                 .category = FIO_OPT_C_IO,
3994                 .group  = FIO_OPT_G_LATPROF,
3995         },
3996         {
3997                 .name   = "latency_percentile",
3998                 .lname  = "Latency Percentile",
3999                 .type   = FIO_OPT_FLOAT_LIST,
4000                 .off1   = offsetof(struct thread_options, latency_percentile),
4001                 .help   = "Percentile of IOs must be below latency_target",
4002                 .def    = "100",
4003                 .maxlen = 1,
4004                 .minfp  = 0.0,
4005                 .maxfp  = 100.0,
4006                 .category = FIO_OPT_C_IO,
4007                 .group  = FIO_OPT_G_LATPROF,
4008         },
4009         {
4010                 .name   = "latency_run",
4011                 .lname  = "Latency Run",
4012                 .type   = FIO_OPT_BOOL,
4013                 .off1   = offsetof(struct thread_options, latency_run),
4014                 .help   = "Keep adjusting queue depth to match latency_target",
4015                 .def    = "0",
4016                 .category = FIO_OPT_C_IO,
4017                 .group  = FIO_OPT_G_LATPROF,
4018         },
4019         {
4020                 .name   = "invalidate",
4021                 .lname  = "Cache invalidate",
4022                 .type   = FIO_OPT_BOOL,
4023                 .off1   = offsetof(struct thread_options, invalidate_cache),
4024                 .help   = "Invalidate buffer/page cache prior to running job",
4025                 .def    = "1",
4026                 .category = FIO_OPT_C_IO,
4027                 .group  = FIO_OPT_G_IO_TYPE,
4028         },
4029         {
4030                 .name   = "sync",
4031                 .lname  = "Synchronous I/O",
4032                 .type   = FIO_OPT_STR,
4033                 .off1   = offsetof(struct thread_options, sync_io),
4034                 .help   = "Use synchronous write IO",
4035                 .def    = "none",
4036                 .hide   = 1,
4037                 .category = FIO_OPT_C_IO,
4038                 .group  = FIO_OPT_G_IO_TYPE,
4039                 .posval = {
4040                           { .ival = "none",
4041                             .oval = 0,
4042                           },
4043                           { .ival = "0",
4044                             .oval = 0,
4045                           },
4046                           { .ival = "sync",
4047                             .oval = O_SYNC,
4048                           },
4049                           { .ival = "1",
4050                             .oval = O_SYNC,
4051                           },
4052 #ifdef O_DSYNC
4053                           { .ival = "dsync",
4054                             .oval = O_DSYNC,
4055                           },
4056 #endif
4057                 },
4058         },
4059 #ifdef FIO_HAVE_WRITE_HINT
4060         {
4061                 .name   = "write_hint",
4062                 .lname  = "Write hint",
4063                 .type   = FIO_OPT_STR,
4064                 .off1   = offsetof(struct thread_options, write_hint),
4065                 .help   = "Set expected write life time",
4066                 .category = FIO_OPT_C_ENGINE,
4067                 .group  = FIO_OPT_G_INVALID,
4068                 .posval = {
4069                           { .ival = "none",
4070                             .oval = RWH_WRITE_LIFE_NONE,
4071                           },
4072                           { .ival = "short",
4073                             .oval = RWH_WRITE_LIFE_SHORT,
4074                           },
4075                           { .ival = "medium",
4076                             .oval = RWH_WRITE_LIFE_MEDIUM,
4077                           },
4078                           { .ival = "long",
4079                             .oval = RWH_WRITE_LIFE_LONG,
4080                           },
4081                           { .ival = "extreme",
4082                             .oval = RWH_WRITE_LIFE_EXTREME,
4083                           },
4084                 },
4085         },
4086 #endif
4087         {
4088                 .name   = "create_serialize",
4089                 .lname  = "Create serialize",
4090                 .type   = FIO_OPT_BOOL,
4091                 .off1   = offsetof(struct thread_options, create_serialize),
4092                 .help   = "Serialize creation of job files",
4093                 .def    = "1",
4094                 .category = FIO_OPT_C_FILE,
4095                 .group  = FIO_OPT_G_INVALID,
4096         },
4097         {
4098                 .name   = "create_fsync",
4099                 .lname  = "Create fsync",
4100                 .type   = FIO_OPT_BOOL,
4101                 .off1   = offsetof(struct thread_options, create_fsync),
4102                 .help   = "fsync file after creation",
4103                 .def    = "1",
4104                 .category = FIO_OPT_C_FILE,
4105                 .group  = FIO_OPT_G_INVALID,
4106         },
4107         {
4108                 .name   = "create_on_open",
4109                 .lname  = "Create on open",
4110                 .type   = FIO_OPT_BOOL,
4111                 .off1   = offsetof(struct thread_options, create_on_open),
4112                 .help   = "Create files when they are opened for IO",
4113                 .def    = "0",
4114                 .category = FIO_OPT_C_FILE,
4115                 .group  = FIO_OPT_G_INVALID,
4116         },
4117         {
4118                 .name   = "create_only",
4119                 .lname  = "Create Only",
4120                 .type   = FIO_OPT_BOOL,
4121                 .off1   = offsetof(struct thread_options, create_only),
4122                 .help   = "Only perform file creation phase",
4123                 .category = FIO_OPT_C_FILE,
4124                 .def    = "0",
4125         },
4126         {
4127                 .name   = "allow_file_create",
4128                 .lname  = "Allow file create",
4129                 .type   = FIO_OPT_BOOL,
4130                 .off1   = offsetof(struct thread_options, allow_create),
4131                 .help   = "Permit fio to create files, if they don't exist",
4132                 .def    = "1",
4133                 .category = FIO_OPT_C_FILE,
4134                 .group  = FIO_OPT_G_FILENAME,
4135         },
4136         {
4137                 .name   = "allow_mounted_write",
4138                 .lname  = "Allow mounted write",
4139                 .type   = FIO_OPT_BOOL,
4140                 .off1   = offsetof(struct thread_options, allow_mounted_write),
4141                 .help   = "Allow writes to a mounted partition",
4142                 .def    = "0",
4143                 .category = FIO_OPT_C_FILE,
4144                 .group  = FIO_OPT_G_FILENAME,
4145         },
4146         {
4147                 .name   = "pre_read",
4148                 .lname  = "Pre-read files",
4149                 .type   = FIO_OPT_BOOL,
4150                 .off1   = offsetof(struct thread_options, pre_read),
4151                 .help   = "Pre-read files before starting official testing",
4152                 .def    = "0",
4153                 .category = FIO_OPT_C_FILE,
4154                 .group  = FIO_OPT_G_INVALID,
4155         },
4156 #ifdef FIO_HAVE_CPU_AFFINITY
4157         {
4158                 .name   = "cpumask",
4159                 .lname  = "CPU mask",
4160                 .type   = FIO_OPT_INT,
4161                 .cb     = str_cpumask_cb,
4162                 .off1   = offsetof(struct thread_options, cpumask),
4163                 .help   = "CPU affinity mask",
4164                 .category = FIO_OPT_C_GENERAL,
4165                 .group  = FIO_OPT_G_CRED,
4166         },
4167         {
4168                 .name   = "cpus_allowed",
4169                 .lname  = "CPUs allowed",
4170                 .type   = FIO_OPT_STR,
4171                 .cb     = str_cpus_allowed_cb,
4172                 .off1   = offsetof(struct thread_options, cpumask),
4173                 .help   = "Set CPUs allowed",
4174                 .category = FIO_OPT_C_GENERAL,
4175                 .group  = FIO_OPT_G_CRED,
4176         },
4177         {
4178                 .name   = "cpus_allowed_policy",
4179                 .lname  = "CPUs allowed distribution policy",
4180                 .type   = FIO_OPT_STR,
4181                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
4182                 .help   = "Distribution policy for cpus_allowed",
4183                 .parent = "cpus_allowed",
4184                 .prio   = 1,
4185                 .posval = {
4186                           { .ival = "shared",
4187                             .oval = FIO_CPUS_SHARED,
4188                             .help = "Mask shared between threads",
4189                           },
4190                           { .ival = "split",
4191                             .oval = FIO_CPUS_SPLIT,
4192                             .help = "Mask split between threads",
4193                           },
4194                 },
4195                 .category = FIO_OPT_C_GENERAL,
4196                 .group  = FIO_OPT_G_CRED,
4197         },
4198 #else
4199         {
4200                 .name   = "cpumask",
4201                 .lname  = "CPU mask",
4202                 .type   = FIO_OPT_UNSUPPORTED,
4203                 .help   = "Your platform does not support CPU affinities",
4204         },
4205         {
4206                 .name   = "cpus_allowed",
4207                 .lname  = "CPUs allowed",
4208                 .type   = FIO_OPT_UNSUPPORTED,
4209                 .help   = "Your platform does not support CPU affinities",
4210         },
4211         {
4212                 .name   = "cpus_allowed_policy",
4213                 .lname  = "CPUs allowed distribution policy",
4214                 .type   = FIO_OPT_UNSUPPORTED,
4215                 .help   = "Your platform does not support CPU affinities",
4216         },
4217 #endif
4218 #ifdef CONFIG_LIBNUMA
4219         {
4220                 .name   = "numa_cpu_nodes",
4221                 .lname  = "NUMA CPU Nodes",
4222                 .type   = FIO_OPT_STR,
4223                 .cb     = str_numa_cpunodes_cb,
4224                 .off1   = offsetof(struct thread_options, numa_cpunodes),
4225                 .help   = "NUMA CPU nodes bind",
4226                 .category = FIO_OPT_C_GENERAL,
4227                 .group  = FIO_OPT_G_INVALID,
4228         },
4229         {
4230                 .name   = "numa_mem_policy",
4231                 .lname  = "NUMA Memory Policy",
4232                 .type   = FIO_OPT_STR,
4233                 .cb     = str_numa_mpol_cb,
4234                 .off1   = offsetof(struct thread_options, numa_memnodes),
4235                 .help   = "NUMA memory policy setup",
4236                 .category = FIO_OPT_C_GENERAL,
4237                 .group  = FIO_OPT_G_INVALID,
4238         },
4239 #else
4240         {
4241                 .name   = "numa_cpu_nodes",
4242                 .lname  = "NUMA CPU Nodes",
4243                 .type   = FIO_OPT_UNSUPPORTED,
4244                 .help   = "Build fio with libnuma-dev(el) to enable this option",
4245         },
4246         {
4247                 .name   = "numa_mem_policy",
4248                 .lname  = "NUMA Memory Policy",
4249                 .type   = FIO_OPT_UNSUPPORTED,
4250                 .help   = "Build fio with libnuma-dev(el) to enable this option",
4251         },
4252 #endif
4253 #ifdef CONFIG_CUDA
4254         {
4255                 .name   = "gpu_dev_id",
4256                 .lname  = "GPU device ID",
4257                 .type   = FIO_OPT_INT,
4258                 .off1   = offsetof(struct thread_options, gpu_dev_id),
4259                 .help   = "Set GPU device ID for GPUDirect RDMA",
4260                 .def    = "0",
4261                 .category = FIO_OPT_C_GENERAL,
4262                 .group  = FIO_OPT_G_INVALID,
4263         },
4264 #endif
4265         {
4266                 .name   = "end_fsync",
4267                 .lname  = "End fsync",
4268                 .type   = FIO_OPT_BOOL,
4269                 .off1   = offsetof(struct thread_options, end_fsync),
4270                 .help   = "Include fsync at the end of job",
4271                 .def    = "0",
4272                 .category = FIO_OPT_C_FILE,
4273                 .group  = FIO_OPT_G_INVALID,
4274         },
4275         {
4276                 .name   = "fsync_on_close",
4277                 .lname  = "Fsync on close",
4278                 .type   = FIO_OPT_BOOL,
4279                 .off1   = offsetof(struct thread_options, fsync_on_close),
4280                 .help   = "fsync files on close",
4281                 .def    = "0",
4282                 .category = FIO_OPT_C_FILE,
4283                 .group  = FIO_OPT_G_INVALID,
4284         },
4285         {
4286                 .name   = "unlink",
4287                 .lname  = "Unlink file",
4288                 .type   = FIO_OPT_BOOL,
4289                 .off1   = offsetof(struct thread_options, unlink),
4290                 .help   = "Unlink created files after job has completed",
4291                 .def    = "0",
4292                 .category = FIO_OPT_C_FILE,
4293                 .group  = FIO_OPT_G_INVALID,
4294         },
4295         {
4296                 .name   = "unlink_each_loop",
4297                 .lname  = "Unlink file after each loop of a job",
4298                 .type   = FIO_OPT_BOOL,
4299                 .off1   = offsetof(struct thread_options, unlink_each_loop),
4300                 .help   = "Unlink created files after each loop in a job has completed",
4301                 .def    = "0",
4302                 .category = FIO_OPT_C_FILE,
4303                 .group  = FIO_OPT_G_INVALID,
4304         },
4305         {
4306                 .name   = "exitall",
4307                 .lname  = "Exit-all on terminate",
4308                 .type   = FIO_OPT_STR_SET,
4309                 .cb     = str_exitall_cb,
4310                 .help   = "Terminate all jobs when one exits",
4311                 .category = FIO_OPT_C_GENERAL,
4312                 .group  = FIO_OPT_G_PROCESS,
4313         },
4314         {
4315                 .name   = "exit_what",
4316                 .lname  = "What jobs to quit on terminate",
4317                 .type   = FIO_OPT_STR,
4318                 .off1   = offsetof(struct thread_options, exit_what),
4319                 .help   = "Fine-grained control for exitall",
4320                 .def    = "group",
4321                 .category = FIO_OPT_C_GENERAL,
4322                 .group  = FIO_OPT_G_PROCESS,
4323                 .posval = {
4324                           { .ival = "group",
4325                             .oval = TERMINATE_GROUP,
4326                             .help = "exit_all=1 default behaviour",
4327                           },
4328                           { .ival = "stonewall",
4329                             .oval = TERMINATE_STONEWALL,
4330                             .help = "quit all currently running jobs; continue with next stonewall",
4331                           },
4332                           { .ival = "all",
4333                             .oval = TERMINATE_ALL,
4334                             .help = "Quit everything",
4335                           },
4336                 },
4337         },
4338         {
4339                 .name   = "exitall_on_error",
4340                 .lname  = "Exit-all on terminate in error",
4341                 .type   = FIO_OPT_STR_SET,
4342                 .off1   = offsetof(struct thread_options, exitall_error),
4343                 .help   = "Terminate all jobs when one exits in error",
4344                 .category = FIO_OPT_C_GENERAL,
4345                 .group  = FIO_OPT_G_PROCESS,
4346         },
4347         {
4348                 .name   = "stonewall",
4349                 .lname  = "Wait for previous",
4350                 .alias  = "wait_for_previous",
4351                 .type   = FIO_OPT_STR_SET,
4352                 .off1   = offsetof(struct thread_options, stonewall),
4353                 .help   = "Insert a hard barrier between this job and previous",
4354                 .category = FIO_OPT_C_GENERAL,
4355                 .group  = FIO_OPT_G_PROCESS,
4356         },
4357         {
4358                 .name   = "new_group",
4359                 .lname  = "New group",
4360                 .type   = FIO_OPT_STR_SET,
4361                 .off1   = offsetof(struct thread_options, new_group),
4362                 .help   = "Mark the start of a new group (for reporting)",
4363                 .category = FIO_OPT_C_GENERAL,
4364                 .group  = FIO_OPT_G_PROCESS,
4365         },
4366         {
4367                 .name   = "thread",
4368                 .lname  = "Thread",
4369                 .type   = FIO_OPT_STR_SET,
4370                 .off1   = offsetof(struct thread_options, use_thread),
4371                 .help   = "Use threads instead of processes",
4372 #ifdef CONFIG_NO_SHM
4373                 .def    = "1",
4374                 .no_warn_def = 1,
4375 #endif
4376                 .category = FIO_OPT_C_GENERAL,
4377                 .group  = FIO_OPT_G_PROCESS,
4378         },
4379         {
4380                 .name   = "per_job_logs",
4381                 .lname  = "Per Job Logs",
4382                 .type   = FIO_OPT_BOOL,
4383                 .off1   = offsetof(struct thread_options, per_job_logs),
4384                 .help   = "Include job number in generated log files or not",
4385                 .def    = "1",
4386                 .category = FIO_OPT_C_LOG,
4387                 .group  = FIO_OPT_G_INVALID,
4388         },
4389         {
4390                 .name   = "write_bw_log",
4391                 .lname  = "Write bandwidth log",
4392                 .type   = FIO_OPT_STR,
4393                 .off1   = offsetof(struct thread_options, bw_log_file),
4394                 .cb     = str_write_bw_log_cb,
4395                 .help   = "Write log of bandwidth during run",
4396                 .category = FIO_OPT_C_LOG,
4397                 .group  = FIO_OPT_G_INVALID,
4398         },
4399         {
4400                 .name   = "write_lat_log",
4401                 .lname  = "Write latency log",
4402                 .type   = FIO_OPT_STR,
4403                 .off1   = offsetof(struct thread_options, lat_log_file),
4404                 .cb     = str_write_lat_log_cb,
4405                 .help   = "Write log of latency during run",
4406                 .category = FIO_OPT_C_LOG,
4407                 .group  = FIO_OPT_G_INVALID,
4408         },
4409         {
4410                 .name   = "write_iops_log",
4411                 .lname  = "Write IOPS log",
4412                 .type   = FIO_OPT_STR,
4413                 .off1   = offsetof(struct thread_options, iops_log_file),
4414                 .cb     = str_write_iops_log_cb,
4415                 .help   = "Write log of IOPS during run",
4416                 .category = FIO_OPT_C_LOG,
4417                 .group  = FIO_OPT_G_INVALID,
4418         },
4419         {
4420                 .name   = "log_entries",
4421                 .lname  = "Log entries",
4422                 .type   = FIO_OPT_INT,
4423                 .off1   = offsetof(struct thread_options, log_entries),
4424                 .help   = "Initial number of entries in a job IO log",
4425                 .def    = __fio_stringify(DEF_LOG_ENTRIES),
4426                 .minval = DEF_LOG_ENTRIES,
4427                 .maxval = MAX_LOG_ENTRIES,
4428                 .category = FIO_OPT_C_LOG,
4429                 .group  = FIO_OPT_G_INVALID,
4430         },
4431         {
4432                 .name   = "log_avg_msec",
4433                 .lname  = "Log averaging (msec)",
4434                 .type   = FIO_OPT_INT,
4435                 .off1   = offsetof(struct thread_options, log_avg_msec),
4436                 .help   = "Average bw/iops/lat logs over this period of time",
4437                 .def    = "0",
4438                 .category = FIO_OPT_C_LOG,
4439                 .group  = FIO_OPT_G_INVALID,
4440         },
4441         {
4442                 .name   = "log_hist_msec",
4443                 .lname  = "Log histograms (msec)",
4444                 .type   = FIO_OPT_INT,
4445                 .off1   = offsetof(struct thread_options, log_hist_msec),
4446                 .help   = "Dump completion latency histograms at frequency of this time value",
4447                 .def    = "0",
4448                 .category = FIO_OPT_C_LOG,
4449                 .group  = FIO_OPT_G_INVALID,
4450         },
4451         {
4452                 .name   = "log_hist_coarseness",
4453                 .lname  = "Histogram logs coarseness",
4454                 .type   = FIO_OPT_INT,
4455                 .off1   = offsetof(struct thread_options, log_hist_coarseness),
4456                 .help   = "Integer in range [0,6]. Higher coarseness outputs"
4457                         " fewer histogram bins per sample. The number of bins for"
4458                         " these are [1216, 608, 304, 152, 76, 38, 19] respectively.",
4459                 .def    = "0",
4460                 .category = FIO_OPT_C_LOG,
4461                 .group  = FIO_OPT_G_INVALID,
4462         },
4463         {
4464                 .name   = "write_hist_log",
4465                 .lname  = "Write latency histogram logs",
4466                 .type   = FIO_OPT_STR,
4467                 .off1   = offsetof(struct thread_options, hist_log_file),
4468                 .cb     = str_write_hist_log_cb,
4469                 .help   = "Write log of latency histograms during run",
4470                 .category = FIO_OPT_C_LOG,
4471                 .group  = FIO_OPT_G_INVALID,
4472         },
4473         {
4474                 .name   = "log_max_value",
4475                 .lname  = "Log maximum instead of average",
4476                 .type   = FIO_OPT_BOOL,
4477                 .off1   = offsetof(struct thread_options, log_max),
4478                 .help   = "Log max sample in a window instead of average",
4479                 .def    = "0",
4480                 .category = FIO_OPT_C_LOG,
4481                 .group  = FIO_OPT_G_INVALID,
4482         },
4483         {
4484                 .name   = "log_offset",
4485                 .lname  = "Log offset of IO",
4486                 .type   = FIO_OPT_BOOL,
4487                 .off1   = offsetof(struct thread_options, log_offset),
4488                 .help   = "Include offset of IO for each log entry",
4489                 .def    = "0",
4490                 .category = FIO_OPT_C_LOG,
4491                 .group  = FIO_OPT_G_INVALID,
4492         },
4493         {
4494                 .name   = "log_prio",
4495                 .lname  = "Log priority of IO",
4496                 .type   = FIO_OPT_BOOL,
4497                 .off1   = offsetof(struct thread_options, log_prio),
4498                 .help   = "Include priority value of IO for each log entry",
4499                 .def    = "0",
4500                 .category = FIO_OPT_C_LOG,
4501                 .group  = FIO_OPT_G_INVALID,
4502         },
4503 #ifdef CONFIG_ZLIB
4504         {
4505                 .name   = "log_compression",
4506                 .lname  = "Log compression",
4507                 .type   = FIO_OPT_INT,
4508                 .off1   = offsetof(struct thread_options, log_gz),
4509                 .help   = "Log in compressed chunks of this size",
4510                 .minval = 1024ULL,
4511                 .maxval = 512 * 1024 * 1024ULL,
4512                 .category = FIO_OPT_C_LOG,
4513                 .group  = FIO_OPT_G_INVALID,
4514         },
4515 #ifdef FIO_HAVE_CPU_AFFINITY
4516         {
4517                 .name   = "log_compression_cpus",
4518                 .lname  = "Log Compression CPUs",
4519                 .type   = FIO_OPT_STR,
4520                 .cb     = str_log_cpus_allowed_cb,
4521                 .off1   = offsetof(struct thread_options, log_gz_cpumask),
4522                 .parent = "log_compression",
4523                 .help   = "Limit log compression to these CPUs",
4524                 .category = FIO_OPT_C_LOG,
4525                 .group  = FIO_OPT_G_INVALID,
4526         },
4527 #else
4528         {
4529                 .name   = "log_compression_cpus",
4530                 .lname  = "Log Compression CPUs",
4531                 .type   = FIO_OPT_UNSUPPORTED,
4532                 .help   = "Your platform does not support CPU affinities",
4533         },
4534 #endif
4535         {
4536                 .name   = "log_store_compressed",
4537                 .lname  = "Log store compressed",
4538                 .type   = FIO_OPT_BOOL,
4539                 .off1   = offsetof(struct thread_options, log_gz_store),
4540                 .help   = "Store logs in a compressed format",
4541                 .category = FIO_OPT_C_LOG,
4542                 .group  = FIO_OPT_G_INVALID,
4543         },
4544 #else
4545         {
4546                 .name   = "log_compression",
4547                 .lname  = "Log compression",
4548                 .type   = FIO_OPT_UNSUPPORTED,
4549                 .help   = "Install libz-dev(el) to get compression support",
4550         },
4551         {
4552                 .name   = "log_store_compressed",
4553                 .lname  = "Log store compressed",
4554                 .type   = FIO_OPT_UNSUPPORTED,
4555                 .help   = "Install libz-dev(el) to get compression support",
4556         },
4557 #endif
4558         {
4559                 .name = "log_unix_epoch",
4560                 .lname = "Log epoch unix",
4561                 .type = FIO_OPT_BOOL,
4562                 .off1 = offsetof(struct thread_options, log_unix_epoch),
4563                 .help = "Use Unix time in log files",
4564                 .category = FIO_OPT_C_LOG,
4565                 .group = FIO_OPT_G_INVALID,
4566         },
4567         {
4568                 .name = "log_alternate_epoch",
4569                 .lname = "Log epoch alternate",
4570                 .type = FIO_OPT_BOOL,
4571                 .off1 = offsetof(struct thread_options, log_alternate_epoch),
4572                 .help = "Use alternate epoch time in log files. Uses the same epoch as that is used by clock_gettime with specified log_alternate_epoch_clock_id.",
4573                 .category = FIO_OPT_C_LOG,
4574                 .group = FIO_OPT_G_INVALID,
4575         },
4576         {
4577                 .name = "log_alternate_epoch_clock_id",
4578                 .lname = "Log alternate epoch clock_id",
4579                 .type = FIO_OPT_INT,
4580                 .off1 = offsetof(struct thread_options, log_alternate_epoch_clock_id),
4581                 .help = "If log_alternate_epoch or log_unix_epoch is true, this option specifies the clock_id from clock_gettime whose epoch should be used. If neither of those is true, this option has no effect. Default value is 0, or CLOCK_REALTIME",
4582                 .category = FIO_OPT_C_LOG,
4583                 .group = FIO_OPT_G_INVALID,
4584         },
4585         {
4586                 .name   = "block_error_percentiles",
4587                 .lname  = "Block error percentiles",
4588                 .type   = FIO_OPT_BOOL,
4589                 .off1   = offsetof(struct thread_options, block_error_hist),
4590                 .help   = "Record trim block errors and make a histogram",
4591                 .def    = "0",
4592                 .category = FIO_OPT_C_LOG,
4593                 .group  = FIO_OPT_G_INVALID,
4594         },
4595         {
4596                 .name   = "bwavgtime",
4597                 .lname  = "Bandwidth average time",
4598                 .type   = FIO_OPT_INT,
4599                 .off1   = offsetof(struct thread_options, bw_avg_time),
4600                 .help   = "Time window over which to calculate bandwidth"
4601                           " (msec)",
4602                 .def    = "500",
4603                 .parent = "write_bw_log",
4604                 .hide   = 1,
4605                 .interval = 100,
4606                 .category = FIO_OPT_C_LOG,
4607                 .group  = FIO_OPT_G_INVALID,
4608         },
4609         {
4610                 .name   = "iopsavgtime",
4611                 .lname  = "IOPS average time",
4612                 .type   = FIO_OPT_INT,
4613                 .off1   = offsetof(struct thread_options, iops_avg_time),
4614                 .help   = "Time window over which to calculate IOPS (msec)",
4615                 .def    = "500",
4616                 .parent = "write_iops_log",
4617                 .hide   = 1,
4618                 .interval = 100,
4619                 .category = FIO_OPT_C_LOG,
4620                 .group  = FIO_OPT_G_INVALID,
4621         },
4622         {
4623                 .name   = "group_reporting",
4624                 .lname  = "Group reporting",
4625                 .type   = FIO_OPT_STR_SET,
4626                 .off1   = offsetof(struct thread_options, group_reporting),
4627                 .help   = "Do reporting on a per-group basis",
4628                 .category = FIO_OPT_C_STAT,
4629                 .group  = FIO_OPT_G_INVALID,
4630         },
4631         {
4632                 .name   = "stats",
4633                 .lname  = "Stats",
4634                 .type   = FIO_OPT_BOOL,
4635                 .off1   = offsetof(struct thread_options, stats),
4636                 .help   = "Enable collection of stats",
4637                 .def    = "1",
4638                 .category = FIO_OPT_C_STAT,
4639                 .group  = FIO_OPT_G_INVALID,
4640         },
4641         {
4642                 .name   = "zero_buffers",
4643                 .lname  = "Zero I/O buffers",
4644                 .type   = FIO_OPT_STR_SET,
4645                 .off1   = offsetof(struct thread_options, zero_buffers),
4646                 .help   = "Init IO buffers to all zeroes",
4647                 .category = FIO_OPT_C_IO,
4648                 .group  = FIO_OPT_G_IO_BUF,
4649         },
4650         {
4651                 .name   = "refill_buffers",
4652                 .lname  = "Refill I/O buffers",
4653                 .type   = FIO_OPT_STR_SET,
4654                 .off1   = offsetof(struct thread_options, refill_buffers),
4655                 .help   = "Refill IO buffers on every IO submit",
4656                 .category = FIO_OPT_C_IO,
4657                 .group  = FIO_OPT_G_IO_BUF,
4658         },
4659         {
4660                 .name   = "scramble_buffers",
4661                 .lname  = "Scramble I/O buffers",
4662                 .type   = FIO_OPT_BOOL,
4663                 .off1   = offsetof(struct thread_options, scramble_buffers),
4664                 .help   = "Slightly scramble buffers on every IO submit",
4665                 .def    = "1",
4666                 .category = FIO_OPT_C_IO,
4667                 .group  = FIO_OPT_G_IO_BUF,
4668         },
4669         {
4670                 .name   = "buffer_pattern",
4671                 .lname  = "Buffer pattern",
4672                 .type   = FIO_OPT_STR,
4673                 .cb     = str_buffer_pattern_cb,
4674                 .off1   = offsetof(struct thread_options, buffer_pattern),
4675                 .help   = "Fill pattern for IO buffers",
4676                 .category = FIO_OPT_C_IO,
4677                 .group  = FIO_OPT_G_IO_BUF,
4678         },
4679         {
4680                 .name   = "buffer_compress_percentage",
4681                 .lname  = "Buffer compression percentage",
4682                 .type   = FIO_OPT_INT,
4683                 .cb     = str_buffer_compress_cb,
4684                 .off1   = offsetof(struct thread_options, compress_percentage),
4685                 .maxval = 100,
4686                 .minval = 0,
4687                 .help   = "How compressible the buffer is (approximately)",
4688                 .interval = 5,
4689                 .category = FIO_OPT_C_IO,
4690                 .group  = FIO_OPT_G_IO_BUF,
4691         },
4692         {
4693                 .name   = "buffer_compress_chunk",
4694                 .lname  = "Buffer compression chunk size",
4695                 .type   = FIO_OPT_INT,
4696                 .off1   = offsetof(struct thread_options, compress_chunk),
4697                 .parent = "buffer_compress_percentage",
4698                 .hide   = 1,
4699                 .help   = "Size of compressible region in buffer",
4700                 .def    = "512",
4701                 .interval = 256,
4702                 .category = FIO_OPT_C_IO,
4703                 .group  = FIO_OPT_G_IO_BUF,
4704         },
4705         {
4706                 .name   = "dedupe_percentage",
4707                 .lname  = "Dedupe percentage",
4708                 .type   = FIO_OPT_INT,
4709                 .cb     = str_dedupe_cb,
4710                 .off1   = offsetof(struct thread_options, dedupe_percentage),
4711                 .maxval = 100,
4712                 .minval = 0,
4713                 .help   = "Percentage of buffers that are dedupable",
4714                 .interval = 1,
4715                 .category = FIO_OPT_C_IO,
4716                 .group  = FIO_OPT_G_IO_BUF,
4717         },
4718         {
4719                 .name   = "dedupe_global",
4720                 .lname  = "Global deduplication",
4721                 .type   = FIO_OPT_BOOL,
4722                 .off1   = offsetof(struct thread_options, dedupe_global),
4723                 .help   = "Share deduplication buffers across jobs",
4724                 .def    = "0",
4725                 .category = FIO_OPT_C_IO,
4726                 .group  = FIO_OPT_G_IO_BUF,
4727         },
4728         {
4729                 .name   = "dedupe_mode",
4730                 .lname  = "Dedupe mode",
4731                 .help   = "Mode for the deduplication buffer generation",
4732                 .type   = FIO_OPT_STR,
4733                 .off1   = offsetof(struct thread_options, dedupe_mode),
4734                 .parent = "dedupe_percentage",
4735                 .def    = "repeat",
4736                 .category = FIO_OPT_C_IO,
4737                 .group  = FIO_OPT_G_IO_BUF,
4738                 .posval = {
4739                            { .ival = "repeat",
4740                              .oval = DEDUPE_MODE_REPEAT,
4741                              .help = "repeat previous page",
4742                            },
4743                            { .ival = "working_set",
4744                              .oval = DEDUPE_MODE_WORKING_SET,
4745                              .help = "choose a page randomly from limited working set defined in dedupe_working_set_percentage",
4746                            },
4747                 },
4748         },
4749         {
4750                 .name   = "dedupe_working_set_percentage",
4751                 .lname  = "Dedupe working set percentage",
4752                 .help   = "Dedupe working set size in percentages from file or device size used to generate dedupe patterns from",
4753                 .type   = FIO_OPT_INT,
4754                 .off1   = offsetof(struct thread_options, dedupe_working_set_percentage),
4755                 .parent = "dedupe_percentage",
4756                 .def    = "5",
4757                 .maxval = 100,
4758                 .minval = 0,
4759                 .category = FIO_OPT_C_IO,
4760                 .group  = FIO_OPT_G_IO_BUF,
4761         },
4762         {
4763                 .name   = "clat_percentiles",
4764                 .lname  = "Completion latency percentiles",
4765                 .type   = FIO_OPT_BOOL,
4766                 .off1   = offsetof(struct thread_options, clat_percentiles),
4767                 .help   = "Enable the reporting of completion latency percentiles",
4768                 .def    = "1",
4769                 .category = FIO_OPT_C_STAT,
4770                 .group  = FIO_OPT_G_INVALID,
4771         },
4772         {
4773                 .name   = "lat_percentiles",
4774                 .lname  = "IO latency percentiles",
4775                 .type   = FIO_OPT_BOOL,
4776                 .off1   = offsetof(struct thread_options, lat_percentiles),
4777                 .help   = "Enable the reporting of IO latency percentiles",
4778                 .def    = "0",
4779                 .category = FIO_OPT_C_STAT,
4780                 .group  = FIO_OPT_G_INVALID,
4781         },
4782         {
4783                 .name   = "slat_percentiles",
4784                 .lname  = "Submission latency percentiles",
4785                 .type   = FIO_OPT_BOOL,
4786                 .off1   = offsetof(struct thread_options, slat_percentiles),
4787                 .help   = "Enable the reporting of submission latency percentiles",
4788                 .def    = "0",
4789                 .category = FIO_OPT_C_STAT,
4790                 .group  = FIO_OPT_G_INVALID,
4791         },
4792         {
4793                 .name   = "percentile_list",
4794                 .lname  = "Percentile list",
4795                 .type   = FIO_OPT_FLOAT_LIST,
4796                 .off1   = offsetof(struct thread_options, percentile_list),
4797                 .off2   = offsetof(struct thread_options, percentile_precision),
4798                 .help   = "Specify a custom list of percentiles to report for "
4799                           "completion latency and block errors",
4800                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
4801                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
4802                 .minfp  = 0.0,
4803                 .maxfp  = 100.0,
4804                 .category = FIO_OPT_C_STAT,
4805                 .group  = FIO_OPT_G_INVALID,
4806         },
4807         {
4808                 .name   = "significant_figures",
4809                 .lname  = "Significant figures",
4810                 .type   = FIO_OPT_INT,
4811                 .off1   = offsetof(struct thread_options, sig_figs),
4812                 .maxval = 10,
4813                 .minval = 1,
4814                 .help   = "Significant figures for output-format set to normal",
4815                 .def    = "4",
4816                 .interval = 1,
4817                 .category = FIO_OPT_C_STAT,
4818                 .group  = FIO_OPT_G_INVALID,
4819         },
4820
4821 #ifdef FIO_HAVE_DISK_UTIL
4822         {
4823                 .name   = "disk_util",
4824                 .lname  = "Disk utilization",
4825                 .type   = FIO_OPT_BOOL,
4826                 .off1   = offsetof(struct thread_options, do_disk_util),
4827                 .help   = "Log disk utilization statistics",
4828                 .def    = "1",
4829                 .category = FIO_OPT_C_STAT,
4830                 .group  = FIO_OPT_G_INVALID,
4831         },
4832 #else
4833         {
4834                 .name   = "disk_util",
4835                 .lname  = "Disk utilization",
4836                 .type   = FIO_OPT_UNSUPPORTED,
4837                 .help   = "Your platform does not support disk utilization",
4838         },
4839 #endif
4840         {
4841                 .name   = "gtod_reduce",
4842                 .lname  = "Reduce gettimeofday() calls",
4843                 .type   = FIO_OPT_BOOL,
4844                 .help   = "Greatly reduce number of gettimeofday() calls",
4845                 .cb     = str_gtod_reduce_cb,
4846                 .def    = "0",
4847                 .hide_on_set = 1,
4848                 .category = FIO_OPT_C_STAT,
4849                 .group  = FIO_OPT_G_INVALID,
4850         },
4851         {
4852                 .name   = "disable_lat",
4853                 .lname  = "Disable all latency stats",
4854                 .type   = FIO_OPT_BOOL,
4855                 .off1   = offsetof(struct thread_options, disable_lat),
4856                 .help   = "Disable latency numbers",
4857                 .parent = "gtod_reduce",
4858                 .hide   = 1,
4859                 .def    = "0",
4860                 .category = FIO_OPT_C_STAT,
4861                 .group  = FIO_OPT_G_INVALID,
4862         },
4863         {
4864                 .name   = "disable_clat",
4865                 .lname  = "Disable completion latency stats",
4866                 .type   = FIO_OPT_BOOL,
4867                 .off1   = offsetof(struct thread_options, disable_clat),
4868                 .help   = "Disable completion latency numbers",
4869                 .parent = "gtod_reduce",
4870                 .hide   = 1,
4871                 .def    = "0",
4872                 .category = FIO_OPT_C_STAT,
4873                 .group  = FIO_OPT_G_INVALID,
4874         },
4875         {
4876                 .name   = "disable_slat",
4877                 .lname  = "Disable submission latency stats",
4878                 .type   = FIO_OPT_BOOL,
4879                 .off1   = offsetof(struct thread_options, disable_slat),
4880                 .help   = "Disable submission latency numbers",
4881                 .parent = "gtod_reduce",
4882                 .hide   = 1,
4883                 .def    = "0",
4884                 .category = FIO_OPT_C_STAT,
4885                 .group  = FIO_OPT_G_INVALID,
4886         },
4887         {
4888                 .name   = "disable_bw_measurement",
4889                 .alias  = "disable_bw",
4890                 .lname  = "Disable bandwidth stats",
4891                 .type   = FIO_OPT_BOOL,
4892                 .off1   = offsetof(struct thread_options, disable_bw),
4893                 .help   = "Disable bandwidth logging",
4894                 .parent = "gtod_reduce",
4895                 .hide   = 1,
4896                 .def    = "0",
4897                 .category = FIO_OPT_C_STAT,
4898                 .group  = FIO_OPT_G_INVALID,
4899         },
4900         {
4901                 .name   = "gtod_cpu",
4902                 .lname  = "Dedicated gettimeofday() CPU",
4903                 .type   = FIO_OPT_INT,
4904                 .off1   = offsetof(struct thread_options, gtod_cpu),
4905                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
4906                 .verify = gtod_cpu_verify,
4907                 .category = FIO_OPT_C_GENERAL,
4908                 .group  = FIO_OPT_G_CLOCK,
4909         },
4910         {
4911                 .name   = "unified_rw_reporting",
4912                 .lname  = "Unified RW Reporting",
4913                 .type   = FIO_OPT_STR,
4914                 .off1   = offsetof(struct thread_options, unified_rw_rep),
4915                 .help   = "Unify reporting across data direction",
4916                 .def    = "none",
4917                 .category = FIO_OPT_C_GENERAL,
4918                 .group  = FIO_OPT_G_INVALID,
4919                 .posval = {
4920                           { .ival = "none",
4921                             .oval = UNIFIED_SPLIT,
4922                             .help = "Normal statistics reporting",
4923                           },
4924                           { .ival = "mixed",
4925                             .oval = UNIFIED_MIXED,
4926                             .help = "Statistics are summed per data direction and reported together",
4927                           },
4928                           { .ival = "both",
4929                             .oval = UNIFIED_BOTH,
4930                             .help = "Statistics are reported normally, followed by the mixed statistics"
4931                           },
4932                           /* Compatibility with former boolean values */
4933                           { .ival = "0",
4934                             .oval = UNIFIED_SPLIT,
4935                             .help = "Alias for 'none'",
4936                           },
4937                           { .ival = "1",
4938                             .oval = UNIFIED_MIXED,
4939                             .help = "Alias for 'mixed'",
4940                           },
4941                           { .ival = "2",
4942                             .oval = UNIFIED_BOTH,
4943                             .help = "Alias for 'both'",
4944                           },
4945                 },
4946         },
4947         {
4948                 .name   = "continue_on_error",
4949                 .lname  = "Continue on error",
4950                 .type   = FIO_OPT_STR,
4951                 .off1   = offsetof(struct thread_options, continue_on_error),
4952                 .help   = "Continue on non-fatal errors during IO",
4953                 .def    = "none",
4954                 .category = FIO_OPT_C_GENERAL,
4955                 .group  = FIO_OPT_G_ERR,
4956                 .posval = {
4957                           { .ival = "none",
4958                             .oval = ERROR_TYPE_NONE,
4959                             .help = "Exit when an error is encountered",
4960                           },
4961                           { .ival = "read",
4962                             .oval = ERROR_TYPE_READ,
4963                             .help = "Continue on read errors only",
4964                           },
4965                           { .ival = "write",
4966                             .oval = ERROR_TYPE_WRITE,
4967                             .help = "Continue on write errors only",
4968                           },
4969                           { .ival = "io",
4970                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
4971                             .help = "Continue on any IO errors",
4972                           },
4973                           { .ival = "verify",
4974                             .oval = ERROR_TYPE_VERIFY,
4975                             .help = "Continue on verify errors only",
4976                           },
4977                           { .ival = "all",
4978                             .oval = ERROR_TYPE_ANY,
4979                             .help = "Continue on all io and verify errors",
4980                           },
4981                           { .ival = "0",
4982                             .oval = ERROR_TYPE_NONE,
4983                             .help = "Alias for 'none'",
4984                           },
4985                           { .ival = "1",
4986                             .oval = ERROR_TYPE_ANY,
4987                             .help = "Alias for 'all'",
4988                           },
4989                 },
4990         },
4991         {
4992                 .name   = "ignore_error",
4993                 .lname  = "Ignore Error",
4994                 .type   = FIO_OPT_STR,
4995                 .cb     = str_ignore_error_cb,
4996                 .off1   = offsetof(struct thread_options, ignore_error_nr),
4997                 .help   = "Set a specific list of errors to ignore",
4998                 .parent = "rw",
4999                 .category = FIO_OPT_C_GENERAL,
5000                 .group  = FIO_OPT_G_ERR,
5001         },
5002         {
5003                 .name   = "error_dump",
5004                 .lname  = "Error Dump",
5005                 .type   = FIO_OPT_BOOL,
5006                 .off1   = offsetof(struct thread_options, error_dump),
5007                 .def    = "0",
5008                 .help   = "Dump info on each error",
5009                 .category = FIO_OPT_C_GENERAL,
5010                 .group  = FIO_OPT_G_ERR,
5011         },
5012         {
5013                 .name   = "profile",
5014                 .lname  = "Profile",
5015                 .type   = FIO_OPT_STR_STORE,
5016                 .off1   = offsetof(struct thread_options, profile),
5017                 .help   = "Select a specific builtin performance test",
5018                 .category = FIO_OPT_C_PROFILE,
5019                 .group  = FIO_OPT_G_INVALID,
5020         },
5021         {
5022                 .name   = "cgroup",
5023                 .lname  = "Cgroup",
5024                 .type   = FIO_OPT_STR_STORE,
5025                 .off1   = offsetof(struct thread_options, cgroup),
5026                 .help   = "Add job to cgroup of this name",
5027                 .category = FIO_OPT_C_GENERAL,
5028                 .group  = FIO_OPT_G_CGROUP,
5029         },
5030         {
5031                 .name   = "cgroup_nodelete",
5032                 .lname  = "Cgroup no-delete",
5033                 .type   = FIO_OPT_BOOL,
5034                 .off1   = offsetof(struct thread_options, cgroup_nodelete),
5035                 .help   = "Do not delete cgroups after job completion",
5036                 .def    = "0",
5037                 .parent = "cgroup",
5038                 .category = FIO_OPT_C_GENERAL,
5039                 .group  = FIO_OPT_G_CGROUP,
5040         },
5041         {
5042                 .name   = "cgroup_weight",
5043                 .lname  = "Cgroup weight",
5044                 .type   = FIO_OPT_INT,
5045                 .off1   = offsetof(struct thread_options, cgroup_weight),
5046                 .help   = "Use given weight for cgroup",
5047                 .minval = 100,
5048                 .maxval = 1000,
5049                 .parent = "cgroup",
5050                 .category = FIO_OPT_C_GENERAL,
5051                 .group  = FIO_OPT_G_CGROUP,
5052         },
5053         {
5054                 .name   = "uid",
5055                 .lname  = "User ID",
5056                 .type   = FIO_OPT_INT,
5057                 .off1   = offsetof(struct thread_options, uid),
5058                 .help   = "Run job with this user ID",
5059                 .category = FIO_OPT_C_GENERAL,
5060                 .group  = FIO_OPT_G_CRED,
5061         },
5062         {
5063                 .name   = "gid",
5064                 .lname  = "Group ID",
5065                 .type   = FIO_OPT_INT,
5066                 .off1   = offsetof(struct thread_options, gid),
5067                 .help   = "Run job with this group ID",
5068                 .category = FIO_OPT_C_GENERAL,
5069                 .group  = FIO_OPT_G_CRED,
5070         },
5071         {
5072                 .name   = "kb_base",
5073                 .lname  = "KB Base",
5074                 .type   = FIO_OPT_STR,
5075                 .off1   = offsetof(struct thread_options, kb_base),
5076                 .prio   = 1,
5077                 .def    = "1024",
5078                 .posval = {
5079                           { .ival = "1024",
5080                             .oval = 1024,
5081                             .help = "Inputs invert IEC and SI prefixes (for compatibility); outputs prefer binary",
5082                           },
5083                           { .ival = "1000",
5084                             .oval = 1000,
5085                             .help = "Inputs use IEC and SI prefixes; outputs prefer SI",
5086                           },
5087                 },
5088                 .help   = "Unit prefix interpretation for quantities of data (IEC and SI)",
5089                 .category = FIO_OPT_C_GENERAL,
5090                 .group  = FIO_OPT_G_INVALID,
5091         },
5092         {
5093                 .name   = "unit_base",
5094                 .lname  = "Unit for quantities of data (Bits or Bytes)",
5095                 .type   = FIO_OPT_STR,
5096                 .off1   = offsetof(struct thread_options, unit_base),
5097                 .prio   = 1,
5098                 .posval = {
5099                           { .ival = "0",
5100                             .oval = N2S_NONE,
5101                             .help = "Auto-detect",
5102                           },
5103                           { .ival = "8",
5104                             .oval = N2S_BYTEPERSEC,
5105                             .help = "Normal (byte based)",
5106                           },
5107                           { .ival = "1",
5108                             .oval = N2S_BITPERSEC,
5109                             .help = "Bit based",
5110                           },
5111                 },
5112                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
5113                 .category = FIO_OPT_C_GENERAL,
5114                 .group  = FIO_OPT_G_INVALID,
5115         },
5116         {
5117                 .name   = "hugepage-size",
5118                 .lname  = "Hugepage size",
5119                 .type   = FIO_OPT_INT,
5120                 .off1   = offsetof(struct thread_options, hugepage_size),
5121                 .help   = "When using hugepages, specify size of each page",
5122                 .def    = __fio_stringify(FIO_HUGE_PAGE),
5123                 .interval = 1024 * 1024,
5124                 .category = FIO_OPT_C_GENERAL,
5125                 .group  = FIO_OPT_G_INVALID,
5126         },
5127         {
5128                 .name   = "flow_id",
5129                 .lname  = "I/O flow ID",
5130                 .type   = FIO_OPT_INT,
5131                 .off1   = offsetof(struct thread_options, flow_id),
5132                 .help   = "The flow index ID to use",
5133                 .def    = "0",
5134                 .category = FIO_OPT_C_IO,
5135                 .group  = FIO_OPT_G_IO_FLOW,
5136         },
5137         {
5138                 .name   = "flow",
5139                 .lname  = "I/O flow weight",
5140                 .type   = FIO_OPT_INT,
5141                 .off1   = offsetof(struct thread_options, flow),
5142                 .help   = "Weight for flow control of this job",
5143                 .parent = "flow_id",
5144                 .hide   = 1,
5145                 .def    = "0",
5146                 .maxval = FLOW_MAX_WEIGHT,
5147                 .category = FIO_OPT_C_IO,
5148                 .group  = FIO_OPT_G_IO_FLOW,
5149         },
5150         {
5151                 .name   = "flow_watermark",
5152                 .lname  = "I/O flow watermark",
5153                 .type   = FIO_OPT_SOFT_DEPRECATED,
5154                 .category = FIO_OPT_C_IO,
5155                 .group  = FIO_OPT_G_IO_FLOW,
5156         },
5157         {
5158                 .name   = "flow_sleep",
5159                 .lname  = "I/O flow sleep",
5160                 .type   = FIO_OPT_INT,
5161                 .off1   = offsetof(struct thread_options, flow_sleep),
5162                 .help   = "How many microseconds to sleep after being held"
5163                         " back by the flow control mechanism",
5164                 .parent = "flow_id",
5165                 .hide   = 1,
5166                 .def    = "0",
5167                 .category = FIO_OPT_C_IO,
5168                 .group  = FIO_OPT_G_IO_FLOW,
5169         },
5170         {
5171                 .name   = "steadystate",
5172                 .lname  = "Steady state threshold",
5173                 .alias  = "ss",
5174                 .type   = FIO_OPT_STR,
5175                 .off1   = offsetof(struct thread_options, ss_state),
5176                 .cb     = str_steadystate_cb,
5177                 .help   = "Define the criterion and limit to judge when a job has reached steady state",
5178                 .def    = "iops_slope:0.01%",
5179                 .posval = {
5180                           { .ival = "iops",
5181                             .oval = FIO_SS_IOPS,
5182                             .help = "maximum mean deviation of IOPS measurements",
5183                           },
5184                           { .ival = "iops_slope",
5185                             .oval = FIO_SS_IOPS_SLOPE,
5186                             .help = "slope calculated from IOPS measurements",
5187                           },
5188                           { .ival = "bw",
5189                             .oval = FIO_SS_BW,
5190                             .help = "maximum mean deviation of bandwidth measurements",
5191                           },
5192                           {
5193                             .ival = "bw_slope",
5194                             .oval = FIO_SS_BW_SLOPE,
5195                             .help = "slope calculated from bandwidth measurements",
5196                           },
5197                 },
5198                 .category = FIO_OPT_C_GENERAL,
5199                 .group  = FIO_OPT_G_RUNTIME,
5200         },
5201         {
5202                 .name   = "steadystate_duration",
5203                 .lname  = "Steady state duration",
5204                 .alias  = "ss_dur",
5205                 .parent = "steadystate",
5206                 .type   = FIO_OPT_STR_VAL_TIME,
5207                 .off1   = offsetof(struct thread_options, ss_dur),
5208                 .help   = "Stop workload upon attaining steady state for specified duration",
5209                 .def    = "0",
5210                 .is_seconds = 1,
5211                 .is_time = 1,
5212                 .category = FIO_OPT_C_GENERAL,
5213                 .group  = FIO_OPT_G_RUNTIME,
5214         },
5215         {
5216                 .name   = "steadystate_ramp_time",
5217                 .lname  = "Steady state ramp time",
5218                 .alias  = "ss_ramp",
5219                 .parent = "steadystate",
5220                 .type   = FIO_OPT_STR_VAL_TIME,
5221                 .off1   = offsetof(struct thread_options, ss_ramp_time),
5222                 .help   = "Delay before initiation of data collection for steady state job termination testing",
5223                 .def    = "0",
5224                 .is_seconds = 1,
5225                 .is_time = 1,
5226                 .category = FIO_OPT_C_GENERAL,
5227                 .group  = FIO_OPT_G_RUNTIME,
5228         },
5229         {
5230                 .name   = "steadystate_check_interval",
5231                 .lname  = "Steady state check interval",
5232                 .alias  = "ss_interval",
5233                 .parent = "steadystate",
5234                 .type   = FIO_OPT_STR_VAL_TIME,
5235                 .off1   = offsetof(struct thread_options, ss_check_interval),
5236                 .help   = "Polling interval for the steady state check (too low means steadystate will not converge)",
5237                 .def    = "1",
5238                 .is_seconds = 1,
5239                 .is_time = 1,
5240                 .category = FIO_OPT_C_GENERAL,
5241                 .group  = FIO_OPT_G_RUNTIME,
5242         },
5243         {
5244                 .name = NULL,
5245         },
5246 };
5247
5248 static void add_to_lopt(struct option *lopt, struct fio_option *o,
5249                         const char *name, int val)
5250 {
5251         lopt->name = (char *) name;
5252         lopt->val = val;
5253         if (o->type == FIO_OPT_STR_SET)
5254                 lopt->has_arg = optional_argument;
5255         else
5256                 lopt->has_arg = required_argument;
5257 }
5258
5259 static void options_to_lopts(struct fio_option *opts,
5260                               struct option *long_options,
5261                               int i, int option_type)
5262 {
5263         struct fio_option *o = &opts[0];
5264         while (o->name) {
5265                 add_to_lopt(&long_options[i], o, o->name, option_type);
5266                 if (o->alias) {
5267                         i++;
5268                         add_to_lopt(&long_options[i], o, o->alias, option_type);
5269                 }
5270
5271                 i++;
5272                 o++;
5273                 assert(i < FIO_NR_OPTIONS);
5274         }
5275 }
5276
5277 void fio_options_set_ioengine_opts(struct option *long_options,
5278                                    struct thread_data *td)
5279 {
5280         unsigned int i;
5281
5282         i = 0;
5283         while (long_options[i].name) {
5284                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
5285                         memset(&long_options[i], 0, sizeof(*long_options));
5286                         break;
5287                 }
5288                 i++;
5289         }
5290
5291         /*
5292          * Just clear out the prior ioengine options.
5293          */
5294         if (!td || !td->eo)
5295                 return;
5296
5297         options_to_lopts(td->io_ops->options, long_options, i,
5298                          FIO_GETOPT_IOENGINE);
5299 }
5300
5301 void fio_options_dup_and_init(struct option *long_options)
5302 {
5303         unsigned int i;
5304
5305         options_init(fio_options);
5306
5307         i = 0;
5308         while (long_options[i].name)
5309                 i++;
5310
5311         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
5312 }
5313
5314 struct fio_keyword {
5315         const char *word;
5316         const char *desc;
5317         char *replace;
5318 };
5319
5320 static struct fio_keyword fio_keywords[] = {
5321         {
5322                 .word   = "$pagesize",
5323                 .desc   = "Page size in the system",
5324         },
5325         {
5326                 .word   = "$mb_memory",
5327                 .desc   = "Megabytes of memory online",
5328         },
5329         {
5330                 .word   = "$ncpus",
5331                 .desc   = "Number of CPUs online in the system",
5332         },
5333         {
5334                 .word   = NULL,
5335         },
5336 };
5337
5338 void fio_keywords_exit(void)
5339 {
5340         struct fio_keyword *kw;
5341
5342         kw = &fio_keywords[0];
5343         while (kw->word) {
5344                 free(kw->replace);
5345                 kw->replace = NULL;
5346                 kw++;
5347         }
5348 }
5349
5350 void fio_keywords_init(void)
5351 {
5352         unsigned long long mb_memory;
5353         char buf[128];
5354         long l;
5355
5356         sprintf(buf, "%lu", (unsigned long) page_size);
5357         fio_keywords[0].replace = strdup(buf);
5358
5359         mb_memory = os_phys_mem() / (1024 * 1024);
5360         sprintf(buf, "%llu", mb_memory);
5361         fio_keywords[1].replace = strdup(buf);
5362
5363         l = cpus_configured();
5364         sprintf(buf, "%lu", l);
5365         fio_keywords[2].replace = strdup(buf);
5366 }
5367
5368 #define BC_APP          "bc"
5369
5370 static char *bc_calc(char *str)
5371 {
5372         char buf[128], *tmp;
5373         FILE *f;
5374         int ret;
5375
5376         /*
5377          * No math, just return string
5378          */
5379         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
5380              !strchr(str, '/')) || strchr(str, '\''))
5381                 return str;
5382
5383         /*
5384          * Split option from value, we only need to calculate the value
5385          */
5386         tmp = strchr(str, '=');
5387         if (!tmp)
5388                 return str;
5389
5390         tmp++;
5391
5392         /*
5393          * Prevent buffer overflows; such a case isn't reasonable anyway
5394          */
5395         if (strlen(str) >= 128 || strlen(tmp) > 100)
5396                 return str;
5397
5398         sprintf(buf, "which %s > /dev/null", BC_APP);
5399         if (system(buf)) {
5400                 log_err("fio: bc is needed for performing math\n");
5401                 return NULL;
5402         }
5403
5404         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
5405         f = popen(buf, "r");
5406         if (!f)
5407                 return NULL;
5408
5409         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
5410         if (ret <= 0) {
5411                 pclose(f);
5412                 return NULL;
5413         }
5414
5415         pclose(f);
5416         buf[(tmp - str) + ret - 1] = '\0';
5417         memcpy(buf, str, tmp - str);
5418         free(str);
5419         return strdup(buf);
5420 }
5421
5422 /*
5423  * Return a copy of the input string with substrings of the form ${VARNAME}
5424  * substituted with the value of the environment variable VARNAME.  The
5425  * substitution always occurs, even if VARNAME is empty or the corresponding
5426  * environment variable undefined.
5427  */
5428 char *fio_option_dup_subs(const char *opt)
5429 {
5430         char out[OPT_LEN_MAX+1];
5431         char in[OPT_LEN_MAX+1];
5432         char *outptr = out;
5433         char *inptr = in;
5434         char *ch1, *ch2, *env;
5435         ssize_t nchr = OPT_LEN_MAX;
5436         size_t envlen;
5437
5438         if (strlen(opt) + 1 > OPT_LEN_MAX) {
5439                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
5440                 return NULL;
5441         }
5442
5443         snprintf(in, sizeof(in), "%s", opt);
5444
5445         while (*inptr && nchr > 0) {
5446                 if (inptr[0] == '$' && inptr[1] == '{') {
5447                         ch2 = strchr(inptr, '}');
5448                         if (ch2 && inptr+1 < ch2) {
5449                                 ch1 = inptr+2;
5450                                 inptr = ch2+1;
5451                                 *ch2 = '\0';
5452
5453                                 env = getenv(ch1);
5454                                 if (env) {
5455                                         envlen = strlen(env);
5456                                         if (envlen <= nchr) {
5457                                                 memcpy(outptr, env, envlen);
5458                                                 outptr += envlen;
5459                                                 nchr -= envlen;
5460                                         }
5461                                 }
5462
5463                                 continue;
5464                         }
5465                 }
5466
5467                 *outptr++ = *inptr++;
5468                 --nchr;
5469         }
5470
5471         *outptr = '\0';
5472         return strdup(out);
5473 }
5474
5475 /*
5476  * Look for reserved variable names and replace them with real values
5477  */
5478 static char *fio_keyword_replace(char *opt)
5479 {
5480         char *s;
5481         int i;
5482         int docalc = 0;
5483
5484         for (i = 0; fio_keywords[i].word != NULL; i++) {
5485                 struct fio_keyword *kw = &fio_keywords[i];
5486
5487                 while ((s = strstr(opt, kw->word)) != NULL) {
5488                         char *new = calloc(strlen(opt) + 1, 1);
5489                         char *o_org = opt;
5490                         int olen = s - opt;
5491                         int len;
5492
5493                         /*
5494                          * Copy part of the string before the keyword and
5495                          * sprintf() the replacement after it.
5496                          */
5497                         memcpy(new, opt, olen);
5498                         len = sprintf(new + olen, "%s", kw->replace);
5499
5500                         /*
5501                          * If there's more in the original string, copy that
5502                          * in too
5503                          */
5504                         opt += olen + strlen(kw->word);
5505                         /* keeps final zero thanks to calloc */
5506                         if (strlen(opt))
5507                                 memcpy(new + olen + len, opt, strlen(opt));
5508
5509                         /*
5510                          * replace opt and free the old opt
5511                          */
5512                         opt = new;
5513                         free(o_org);
5514
5515                         docalc = 1;
5516                 }
5517         }
5518
5519         /*
5520          * Check for potential math and invoke bc, if possible
5521          */
5522         if (docalc)
5523                 opt = bc_calc(opt);
5524
5525         return opt;
5526 }
5527
5528 static char **dup_and_sub_options(char **opts, int num_opts)
5529 {
5530         int i;
5531         char **opts_copy = malloc(num_opts * sizeof(*opts));
5532         for (i = 0; i < num_opts; i++) {
5533                 opts_copy[i] = fio_option_dup_subs(opts[i]);
5534                 if (!opts_copy[i])
5535                         continue;
5536                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
5537         }
5538         return opts_copy;
5539 }
5540
5541 static void show_closest_option(const char *opt)
5542 {
5543         int best_option, best_distance;
5544         int i, distance;
5545         char *name;
5546
5547         if (!strlen(opt))
5548                 return;
5549
5550         name = strdup(opt);
5551         i = 0;
5552         while (name[i] != '\0' && name[i] != '=')
5553                 i++;
5554         name[i] = '\0';
5555
5556         best_option = -1;
5557         best_distance = INT_MAX;
5558         i = 0;
5559         while (fio_options[i].name) {
5560                 distance = string_distance(name, fio_options[i].name);
5561                 if (distance < best_distance) {
5562                         best_distance = distance;
5563                         best_option = i;
5564                 }
5565                 i++;
5566         }
5567
5568         if (best_option != -1 && string_distance_ok(name, best_distance) &&
5569             fio_options[best_option].type != FIO_OPT_UNSUPPORTED)
5570                 log_err("Did you mean %s?\n", fio_options[best_option].name);
5571
5572         free(name);
5573 }
5574
5575 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
5576 {
5577         int i, ret, unknown;
5578         char **opts_copy;
5579
5580         sort_options(opts, fio_options, num_opts);
5581         opts_copy = dup_and_sub_options(opts, num_opts);
5582
5583         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
5584                 const struct fio_option *o;
5585                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
5586                                                 &o, &td->o, &td->opt_list);
5587
5588                 if (!newret && o)
5589                         fio_option_mark_set(&td->o, o);
5590
5591                 if (opts_copy[i]) {
5592                         if (newret && !o) {
5593                                 unknown++;
5594                                 continue;
5595                         }
5596                         free(opts_copy[i]);
5597                         opts_copy[i] = NULL;
5598                 }
5599
5600                 ret |= newret;
5601         }
5602
5603         if (unknown) {
5604                 ret |= ioengine_load(td);
5605                 if (td->eo) {
5606                         sort_options(opts_copy, td->io_ops->options, num_opts);
5607                         opts = opts_copy;
5608                 }
5609                 for (i = 0; i < num_opts; i++) {
5610                         const struct fio_option *o = NULL;
5611                         int newret = 1;
5612
5613                         if (!opts_copy[i])
5614                                 continue;
5615
5616                         if (td->eo)
5617                                 newret = parse_option(opts_copy[i], opts[i],
5618                                                       td->io_ops->options, &o,
5619                                                       td->eo, &td->opt_list);
5620
5621                         ret |= newret;
5622                         if (!o) {
5623                                 log_err("Bad option <%s>\n", opts[i]);
5624                                 show_closest_option(opts[i]);
5625                         }
5626                         free(opts_copy[i]);
5627                         opts_copy[i] = NULL;
5628                 }
5629         }
5630
5631         free(opts_copy);
5632         return ret;
5633 }
5634
5635 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
5636 {
5637         int ret;
5638
5639         ret = parse_cmd_option(opt, val, fio_options, &td->o, &td->opt_list);
5640         if (!ret) {
5641                 const struct fio_option *o;
5642
5643                 o = find_option_c(fio_options, opt);
5644                 if (o)
5645                         fio_option_mark_set(&td->o, o);
5646         }
5647
5648         return ret;
5649 }
5650
5651 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
5652                                 char *val)
5653 {
5654         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
5655                                         &td->opt_list);
5656 }
5657
5658 void fio_fill_default_options(struct thread_data *td)
5659 {
5660         td->o.magic = OPT_MAGIC;
5661         fill_default_options(&td->o, fio_options);
5662 }
5663
5664 int fio_show_option_help(const char *opt)
5665 {
5666         return show_cmd_help(fio_options, opt);
5667 }
5668
5669 /*
5670  * dupe FIO_OPT_STR_STORE options
5671  */
5672 void fio_options_mem_dupe(struct thread_data *td)
5673 {
5674         options_mem_dupe(fio_options, &td->o);
5675
5676         if (td->eo && td->io_ops) {
5677                 void *oldeo = td->eo;
5678
5679                 td->eo = malloc(td->io_ops->option_struct_size);
5680                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
5681                 options_mem_dupe(td->io_ops->options, td->eo);
5682         }
5683 }
5684
5685 unsigned int fio_get_kb_base(void *data)
5686 {
5687         struct thread_data *td = cb_data_to_td(data);
5688         struct thread_options *o = &td->o;
5689         unsigned int kb_base = 0;
5690
5691         /*
5692          * This is a hack... For private options, *data is not holding
5693          * a pointer to the thread_options, but to private data. This means
5694          * we can't safely dereference it, but magic is first so mem wise
5695          * it is valid. But this also means that if the job first sets
5696          * kb_base and expects that to be honored by private options,
5697          * it will be disappointed. We will return the global default
5698          * for this.
5699          */
5700         if (o && o->magic == OPT_MAGIC)
5701                 kb_base = o->kb_base;
5702         if (!kb_base)
5703                 kb_base = 1024;
5704
5705         return kb_base;
5706 }
5707
5708 int add_option(const struct fio_option *o)
5709 {
5710         struct fio_option *__o;
5711         int opt_index = 0;
5712
5713         __o = fio_options;
5714         while (__o->name) {
5715                 opt_index++;
5716                 __o++;
5717         }
5718
5719         if (opt_index + 1 == FIO_MAX_OPTS) {
5720                 log_err("fio: FIO_MAX_OPTS is too small\n");
5721                 return 1;
5722         }
5723
5724         memcpy(&fio_options[opt_index], o, sizeof(*o));
5725         fio_options[opt_index + 1].name = NULL;
5726         return 0;
5727 }
5728
5729 void invalidate_profile_options(const char *prof_name)
5730 {
5731         struct fio_option *o;
5732
5733         o = fio_options;
5734         while (o->name) {
5735                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
5736                         o->type = FIO_OPT_INVALID;
5737                         o->prof_name = NULL;
5738                 }
5739                 o++;
5740         }
5741 }
5742
5743 void add_opt_posval(const char *optname, const char *ival, const char *help)
5744 {
5745         struct fio_option *o;
5746         unsigned int i;
5747
5748         o = find_option(fio_options, optname);
5749         if (!o)
5750                 return;
5751
5752         for (i = 0; i < PARSE_MAX_VP; i++) {
5753                 if (o->posval[i].ival)
5754                         continue;
5755
5756                 o->posval[i].ival = ival;
5757                 o->posval[i].help = help;
5758                 break;
5759         }
5760 }
5761
5762 void del_opt_posval(const char *optname, const char *ival)
5763 {
5764         struct fio_option *o;
5765         unsigned int i;
5766
5767         o = find_option(fio_options, optname);
5768         if (!o)
5769                 return;
5770
5771         for (i = 0; i < PARSE_MAX_VP; i++) {
5772                 if (!o->posval[i].ival)
5773                         continue;
5774                 if (strcmp(o->posval[i].ival, ival))
5775                         continue;
5776
5777                 o->posval[i].ival = NULL;
5778                 o->posval[i].help = NULL;
5779         }
5780 }
5781
5782 void fio_options_free(struct thread_data *td)
5783 {
5784         options_free(fio_options, &td->o);
5785         if (td->eo && td->io_ops && td->io_ops->options) {
5786                 options_free(td->io_ops->options, td->eo);
5787                 free(td->eo);
5788                 td->eo = NULL;
5789         }
5790 }
5791
5792 void fio_dump_options_free(struct thread_data *td)
5793 {
5794         while (!flist_empty(&td->opt_list)) {
5795                 struct print_option *p;
5796
5797                 p = flist_first_entry(&td->opt_list, struct print_option, list);
5798                 flist_del_init(&p->list);
5799                 free(p->name);
5800                 free(p->value);
5801                 free(p);
5802         }
5803 }
5804
5805 struct fio_option *fio_option_find(const char *name)
5806 {
5807         return find_option(fio_options, name);
5808 }
5809
5810 static struct fio_option *find_next_opt(struct fio_option *from,
5811                                         unsigned int off1)
5812 {
5813         struct fio_option *opt;
5814
5815         if (!from)
5816                 from = &fio_options[0];
5817         else
5818                 from++;
5819
5820         opt = NULL;
5821         do {
5822                 if (off1 == from->off1) {
5823                         opt = from;
5824                         break;
5825                 }
5826                 from++;
5827         } while (from->name);
5828
5829         return opt;
5830 }
5831
5832 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
5833 {
5834         unsigned int opt_off, index, offset;
5835
5836         opt_off = opt - &fio_options[0];
5837         index = opt_off / (8 * sizeof(uint64_t));
5838         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5839         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
5840 }
5841
5842 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
5843 {
5844         struct fio_option *opt, *next;
5845
5846         next = NULL;
5847         while ((opt = find_next_opt(next, off1)) != NULL) {
5848                 if (opt_is_set(o, opt))
5849                         return true;
5850
5851                 next = opt;
5852         }
5853
5854         return false;
5855 }
5856
5857 void fio_option_mark_set(struct thread_options *o, const struct fio_option *opt)
5858 {
5859         unsigned int opt_off, index, offset;
5860
5861         opt_off = opt - &fio_options[0];
5862         index = opt_off / (8 * sizeof(uint64_t));
5863         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5864         o->set_options[index] |= (uint64_t)1 << offset;
5865 }