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