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                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1018                         td->o.zone_split_nr[i] = 0;
1019         }
1020
1021         return ret;
1022 }
1023
1024 static int str_random_distribution_cb(void *data, const char *str)
1025 {
1026         struct thread_data *td = cb_data_to_td(data);
1027         double val;
1028         char *nr;
1029
1030         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1031                 val = FIO_DEF_ZIPF;
1032         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1033                 val = FIO_DEF_PARETO;
1034         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1035                 val = 0.0;
1036         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
1037                 return parse_zoned_distribution(td, str, false);
1038         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
1039                 return parse_zoned_distribution(td, str, true);
1040         else
1041                 return 0;
1042
1043         nr = get_opt_postfix(str);
1044         if (nr && !str_to_float(nr, &val, 0)) {
1045                 log_err("fio: random postfix parsing failed\n");
1046                 free(nr);
1047                 return 1;
1048         }
1049
1050         free(nr);
1051
1052         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
1053                 if (val == 1.00) {
1054                         log_err("fio: zipf theta must different than 1.0\n");
1055                         return 1;
1056                 }
1057                 if (parse_dryrun())
1058                         return 0;
1059                 td->o.zipf_theta.u.f = val;
1060         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
1061                 if (val <= 0.00 || val >= 1.00) {
1062                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1063                         return 1;
1064                 }
1065                 if (parse_dryrun())
1066                         return 0;
1067                 td->o.pareto_h.u.f = val;
1068         } else {
1069                 if (val < 0.00 || val >= 100.0) {
1070                         log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1071                         return 1;
1072                 }
1073                 if (parse_dryrun())
1074                         return 0;
1075                 td->o.gauss_dev.u.f = val;
1076         }
1077
1078         return 0;
1079 }
1080
1081 static int str_steadystate_cb(void *data, const char *str)
1082 {
1083         struct thread_data *td = cb_data_to_td(data);
1084         double val;
1085         char *nr;
1086         char *pct;
1087         long long ll;
1088
1089         if (td->o.ss_state != FIO_SS_IOPS && td->o.ss_state != FIO_SS_IOPS_SLOPE &&
1090             td->o.ss_state != FIO_SS_BW && td->o.ss_state != FIO_SS_BW_SLOPE) {
1091                 /* should be impossible to get here */
1092                 log_err("fio: unknown steady state criterion\n");
1093                 return 1;
1094         }
1095
1096         nr = get_opt_postfix(str);
1097         if (!nr) {
1098                 log_err("fio: steadystate threshold must be specified in addition to criterion\n");
1099                 free(nr);
1100                 return 1;
1101         }
1102
1103         /* ENHANCEMENT Allow fio to understand size=10.2% and use here */
1104         pct = strstr(nr, "%");
1105         if (pct) {
1106                 *pct = '\0';
1107                 strip_blank_end(nr);
1108                 if (!str_to_float(nr, &val, 0)) {
1109                         log_err("fio: could not parse steadystate threshold percentage\n");
1110                         free(nr);
1111                         return 1;
1112                 }
1113
1114                 dprint(FD_PARSE, "set steady state threshold to %f%%\n", val);
1115                 free(nr);
1116                 if (parse_dryrun())
1117                         return 0;
1118
1119                 td->o.ss_state |= FIO_SS_PCT;
1120                 td->o.ss_limit.u.f = val;
1121         } else if (td->o.ss_state & FIO_SS_IOPS) {
1122                 if (!str_to_float(nr, &val, 0)) {
1123                         log_err("fio: steadystate IOPS threshold postfix parsing failed\n");
1124                         free(nr);
1125                         return 1;
1126                 }
1127
1128                 dprint(FD_PARSE, "set steady state IOPS threshold to %f\n", val);
1129                 free(nr);
1130                 if (parse_dryrun())
1131                         return 0;
1132
1133                 td->o.ss_limit.u.f = val;
1134         } else {        /* bandwidth criterion */
1135                 if (str_to_decimal(nr, &ll, 1, td, 0, 0)) {
1136                         log_err("fio: steadystate BW threshold postfix parsing failed\n");
1137                         free(nr);
1138                         return 1;
1139                 }
1140
1141                 dprint(FD_PARSE, "set steady state BW threshold to %lld\n", ll);
1142                 free(nr);
1143                 if (parse_dryrun())
1144                         return 0;
1145
1146                 td->o.ss_limit.u.f = (double) ll;
1147         }
1148
1149         td->ss.state = td->o.ss_state;
1150         return 0;
1151 }
1152
1153 /*
1154  * Return next name in the string. Files are separated with ':'. If the ':'
1155  * is escaped with a '\', then that ':' is part of the filename and does not
1156  * indicate a new file.
1157  */
1158 static char *get_next_name(char **ptr)
1159 {
1160         char *str = *ptr;
1161         char *p, *start;
1162
1163         if (!str || !strlen(str))
1164                 return NULL;
1165
1166         start = str;
1167         do {
1168                 /*
1169                  * No colon, we are done
1170                  */
1171                 p = strchr(str, ':');
1172                 if (!p) {
1173                         *ptr = NULL;
1174                         break;
1175                 }
1176
1177                 /*
1178                  * We got a colon, but it's the first character. Skip and
1179                  * continue
1180                  */
1181                 if (p == start) {
1182                         str = ++start;
1183                         continue;
1184                 }
1185
1186                 if (*(p - 1) != '\\') {
1187                         *p = '\0';
1188                         *ptr = p + 1;
1189                         break;
1190                 }
1191
1192                 memmove(p - 1, p, strlen(p) + 1);
1193                 str = p;
1194         } while (1);
1195
1196         return start;
1197 }
1198
1199
1200 static int get_max_name_idx(char *input)
1201 {
1202         unsigned int cur_idx;
1203         char *str, *p;
1204
1205         p = str = strdup(input);
1206         for (cur_idx = 0; ; cur_idx++)
1207                 if (get_next_name(&str) == NULL)
1208                         break;
1209
1210         free(p);
1211         return cur_idx;
1212 }
1213
1214 /*
1215  * Returns the directory at the index, indexes > entires will be
1216  * assigned via modulo division of the index
1217  */
1218 int set_name_idx(char *target, size_t tlen, char *input, int index,
1219                  bool unique_filename)
1220 {
1221         unsigned int cur_idx;
1222         int len;
1223         char *fname, *str, *p;
1224
1225         p = str = strdup(input);
1226
1227         index %= get_max_name_idx(input);
1228         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1229                 fname = get_next_name(&str);
1230
1231         if (client_sockaddr_str[0] && unique_filename) {
1232                 len = snprintf(target, tlen, "%s/%s.", fname,
1233                                 client_sockaddr_str);
1234         } else
1235                 len = snprintf(target, tlen, "%s/", fname);
1236
1237         target[tlen - 1] = '\0';
1238         free(p);
1239
1240         return len;
1241 }
1242
1243 static int str_filename_cb(void *data, const char *input)
1244 {
1245         struct thread_data *td = cb_data_to_td(data);
1246         char *fname, *str, *p;
1247
1248         p = str = strdup(input);
1249
1250         strip_blank_front(&str);
1251         strip_blank_end(str);
1252
1253         /*
1254          * Ignore what we may already have from nrfiles option.
1255          */
1256         if (!td->files_index)
1257                 td->o.nr_files = 0;
1258
1259         while ((fname = get_next_name(&str)) != NULL) {
1260                 if (!strlen(fname))
1261                         break;
1262                 add_file(td, fname, 0, 1);
1263         }
1264
1265         free(p);
1266         return 0;
1267 }
1268
1269 static int str_directory_cb(void *data, const char fio_unused *unused)
1270 {
1271         struct thread_data *td = cb_data_to_td(data);
1272         struct stat sb;
1273         char *dirname, *str, *p;
1274         int ret = 0;
1275
1276         if (parse_dryrun())
1277                 return 0;
1278
1279         p = str = strdup(td->o.directory);
1280         while ((dirname = get_next_name(&str)) != NULL) {
1281                 if (lstat(dirname, &sb) < 0) {
1282                         ret = errno;
1283
1284                         log_err("fio: %s is not a directory\n", dirname);
1285                         td_verror(td, ret, "lstat");
1286                         goto out;
1287                 }
1288                 if (!S_ISDIR(sb.st_mode)) {
1289                         log_err("fio: %s is not a directory\n", dirname);
1290                         ret = 1;
1291                         goto out;
1292                 }
1293         }
1294
1295 out:
1296         free(p);
1297         return ret;
1298 }
1299
1300 static int str_opendir_cb(void *data, const char fio_unused *str)
1301 {
1302         struct thread_data *td = cb_data_to_td(data);
1303
1304         if (parse_dryrun())
1305                 return 0;
1306
1307         if (!td->files_index)
1308                 td->o.nr_files = 0;
1309
1310         return add_dir_files(td, td->o.opendir);
1311 }
1312
1313 static int str_buffer_pattern_cb(void *data, const char *input)
1314 {
1315         struct thread_data *td = cb_data_to_td(data);
1316         int ret;
1317
1318         /* FIXME: for now buffer pattern does not support formats */
1319         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
1320                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
1321         if (ret < 0)
1322                 return 1;
1323
1324         assert(ret != 0);
1325         td->o.buffer_pattern_bytes = ret;
1326
1327         /*
1328          * If this job is doing any reading or has compression set,
1329          * ensure that we refill buffers for writes or we could be
1330          * invalidating the pattern through reads.
1331          */
1332         if (!td->o.compress_percentage && !td_read(td))
1333                 td->o.refill_buffers = 0;
1334         else
1335                 td->o.refill_buffers = 1;
1336
1337         td->o.scramble_buffers = 0;
1338         td->o.zero_buffers = 0;
1339
1340         return 0;
1341 }
1342
1343 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1344 {
1345         struct thread_data *td = cb_data_to_td(data);
1346
1347         td->flags |= TD_F_COMPRESS;
1348         td->o.compress_percentage = *il;
1349         return 0;
1350 }
1351
1352 static int str_dedupe_cb(void *data, unsigned long long *il)
1353 {
1354         struct thread_data *td = cb_data_to_td(data);
1355
1356         td->flags |= TD_F_COMPRESS;
1357         td->o.dedupe_percentage = *il;
1358         td->o.refill_buffers = 1;
1359         return 0;
1360 }
1361
1362 static int str_verify_pattern_cb(void *data, const char *input)
1363 {
1364         struct thread_data *td = cb_data_to_td(data);
1365         int ret;
1366
1367         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
1368         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
1369                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
1370                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
1371         if (ret < 0)
1372                 return 1;
1373
1374         assert(ret != 0);
1375         td->o.verify_pattern_bytes = ret;
1376         /*
1377          * VERIFY_* could already be set
1378          */
1379         if (!fio_option_is_set(&td->o, verify))
1380                 td->o.verify = VERIFY_PATTERN;
1381
1382         return 0;
1383 }
1384
1385 static int str_gtod_reduce_cb(void *data, int *il)
1386 {
1387         struct thread_data *td = cb_data_to_td(data);
1388         int val = *il;
1389
1390         td->o.disable_lat = !!val;
1391         td->o.disable_clat = !!val;
1392         td->o.disable_slat = !!val;
1393         td->o.disable_bw = !!val;
1394         td->o.clat_percentiles = !val;
1395         if (val)
1396                 td->ts_cache_mask = 63;
1397
1398         return 0;
1399 }
1400
1401 static int str_offset_cb(void *data, unsigned long long *__val)
1402 {
1403         struct thread_data *td = cb_data_to_td(data);
1404         unsigned long long v = *__val;
1405
1406         if (parse_is_percent(v)) {
1407                 td->o.start_offset = 0;
1408                 td->o.start_offset_percent = -1ULL - v;
1409                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1410                                         td->o.start_offset_percent);
1411         } else
1412                 td->o.start_offset = v;
1413
1414         return 0;
1415 }
1416
1417 static int str_size_cb(void *data, unsigned long long *__val)
1418 {
1419         struct thread_data *td = cb_data_to_td(data);
1420         unsigned long long v = *__val;
1421
1422         if (parse_is_percent(v)) {
1423                 td->o.size = 0;
1424                 td->o.size_percent = -1ULL - v;
1425                 dprint(FD_PARSE, "SET size_percent %d\n",
1426                                         td->o.size_percent);
1427         } else
1428                 td->o.size = v;
1429
1430         return 0;
1431 }
1432
1433 static int str_write_bw_log_cb(void *data, const char *str)
1434 {
1435         struct thread_data *td = cb_data_to_td(data);
1436
1437         if (str)
1438                 td->o.bw_log_file = strdup(str);
1439
1440         td->o.write_bw_log = 1;
1441         return 0;
1442 }
1443
1444 static int str_write_lat_log_cb(void *data, const char *str)
1445 {
1446         struct thread_data *td = cb_data_to_td(data);
1447
1448         if (str)
1449                 td->o.lat_log_file = strdup(str);
1450
1451         td->o.write_lat_log = 1;
1452         return 0;
1453 }
1454
1455 static int str_write_iops_log_cb(void *data, const char *str)
1456 {
1457         struct thread_data *td = cb_data_to_td(data);
1458
1459         if (str)
1460                 td->o.iops_log_file = strdup(str);
1461
1462         td->o.write_iops_log = 1;
1463         return 0;
1464 }
1465
1466 static int str_write_hist_log_cb(void *data, const char *str)
1467 {
1468         struct thread_data *td = cb_data_to_td(data);
1469
1470         if (str)
1471                 td->o.hist_log_file = strdup(str);
1472
1473         td->o.write_hist_log = 1;
1474         return 0;
1475 }
1476
1477 /*
1478  * str is supposed to be a substring of the strdup'd original string,
1479  * and is valid only if it's a regular file path.
1480  * This function keeps the pointer to the path as needed later.
1481  *
1482  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1483  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1484  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1485  */
1486 static int str_ioengine_external_cb(void *data, const char *str)
1487 {
1488         struct thread_data *td = cb_data_to_td(data);
1489         struct stat sb;
1490         char *p;
1491
1492         if (!str) {
1493                 log_err("fio: null external ioengine path\n");
1494                 return 1;
1495         }
1496
1497         p = (char *)str; /* str is mutable */
1498         strip_blank_front(&p);
1499         strip_blank_end(p);
1500
1501         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1502                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1503                 return 1;
1504         }
1505
1506         td->o.ioengine_so_path = p;
1507         return 0;
1508 }
1509
1510 static int rw_verify(const struct fio_option *o, void *data)
1511 {
1512         struct thread_data *td = cb_data_to_td(data);
1513
1514         if (read_only && (td_write(td) || td_trim(td))) {
1515                 log_err("fio: job <%s> has write or trim bit set, but"
1516                         " fio is in read-only mode\n", td->o.name);
1517                 return 1;
1518         }
1519
1520         return 0;
1521 }
1522
1523 static int gtod_cpu_verify(const struct fio_option *o, void *data)
1524 {
1525 #ifndef FIO_HAVE_CPU_AFFINITY
1526         struct thread_data *td = cb_data_to_td(data);
1527
1528         if (td->o.gtod_cpu) {
1529                 log_err("fio: platform must support CPU affinity for"
1530                         "gettimeofday() offloading\n");
1531                 return 1;
1532         }
1533 #endif
1534
1535         return 0;
1536 }
1537
1538 /*
1539  * Map of job/command line options
1540  */
1541 struct fio_option fio_options[FIO_MAX_OPTS] = {
1542         {
1543                 .name   = "description",
1544                 .lname  = "Description of job",
1545                 .type   = FIO_OPT_STR_STORE,
1546                 .off1   = offsetof(struct thread_options, description),
1547                 .help   = "Text job description",
1548                 .category = FIO_OPT_C_GENERAL,
1549                 .group  = FIO_OPT_G_DESC,
1550         },
1551         {
1552                 .name   = "name",
1553                 .lname  = "Job name",
1554                 .type   = FIO_OPT_STR_STORE,
1555                 .off1   = offsetof(struct thread_options, name),
1556                 .help   = "Name of this job",
1557                 .category = FIO_OPT_C_GENERAL,
1558                 .group  = FIO_OPT_G_DESC,
1559         },
1560         {
1561                 .name   = "wait_for",
1562                 .lname  = "Waitee name",
1563                 .type   = FIO_OPT_STR_STORE,
1564                 .off1   = offsetof(struct thread_options, wait_for),
1565                 .help   = "Name of the job this one wants to wait for before starting",
1566                 .category = FIO_OPT_C_GENERAL,
1567                 .group  = FIO_OPT_G_DESC,
1568         },
1569         {
1570                 .name   = "filename",
1571                 .lname  = "Filename(s)",
1572                 .type   = FIO_OPT_STR_STORE,
1573                 .off1   = offsetof(struct thread_options, filename),
1574                 .cb     = str_filename_cb,
1575                 .prio   = -1, /* must come after "directory" */
1576                 .help   = "File(s) to use for the workload",
1577                 .category = FIO_OPT_C_FILE,
1578                 .group  = FIO_OPT_G_FILENAME,
1579         },
1580         {
1581                 .name   = "directory",
1582                 .lname  = "Directory",
1583                 .type   = FIO_OPT_STR_STORE,
1584                 .off1   = offsetof(struct thread_options, directory),
1585                 .cb     = str_directory_cb,
1586                 .help   = "Directory to store files in",
1587                 .category = FIO_OPT_C_FILE,
1588                 .group  = FIO_OPT_G_FILENAME,
1589         },
1590         {
1591                 .name   = "filename_format",
1592                 .lname  = "Filename Format",
1593                 .type   = FIO_OPT_STR_STORE,
1594                 .off1   = offsetof(struct thread_options, filename_format),
1595                 .prio   = -1, /* must come after "directory" */
1596                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1597                 .def    = "$jobname.$jobnum.$filenum",
1598                 .category = FIO_OPT_C_FILE,
1599                 .group  = FIO_OPT_G_FILENAME,
1600         },
1601         {
1602                 .name   = "unique_filename",
1603                 .lname  = "Unique Filename",
1604                 .type   = FIO_OPT_BOOL,
1605                 .off1   = offsetof(struct thread_options, unique_filename),
1606                 .help   = "For network clients, prefix file with source IP",
1607                 .def    = "1",
1608                 .category = FIO_OPT_C_FILE,
1609                 .group  = FIO_OPT_G_FILENAME,
1610         },
1611         {
1612                 .name   = "lockfile",
1613                 .lname  = "Lockfile",
1614                 .type   = FIO_OPT_STR,
1615                 .off1   = offsetof(struct thread_options, file_lock_mode),
1616                 .help   = "Lock file when doing IO to it",
1617                 .prio   = 1,
1618                 .parent = "filename",
1619                 .hide   = 0,
1620                 .def    = "none",
1621                 .category = FIO_OPT_C_FILE,
1622                 .group  = FIO_OPT_G_FILENAME,
1623                 .posval = {
1624                           { .ival = "none",
1625                             .oval = FILE_LOCK_NONE,
1626                             .help = "No file locking",
1627                           },
1628                           { .ival = "exclusive",
1629                             .oval = FILE_LOCK_EXCLUSIVE,
1630                             .help = "Exclusive file lock",
1631                           },
1632                           {
1633                             .ival = "readwrite",
1634                             .oval = FILE_LOCK_READWRITE,
1635                             .help = "Read vs write lock",
1636                           },
1637                 },
1638         },
1639         {
1640                 .name   = "opendir",
1641                 .lname  = "Open directory",
1642                 .type   = FIO_OPT_STR_STORE,
1643                 .off1   = offsetof(struct thread_options, opendir),
1644                 .cb     = str_opendir_cb,
1645                 .help   = "Recursively add files from this directory and down",
1646                 .category = FIO_OPT_C_FILE,
1647                 .group  = FIO_OPT_G_FILENAME,
1648         },
1649         {
1650                 .name   = "rw",
1651                 .lname  = "Read/write",
1652                 .alias  = "readwrite",
1653                 .type   = FIO_OPT_STR,
1654                 .cb     = str_rw_cb,
1655                 .off1   = offsetof(struct thread_options, td_ddir),
1656                 .help   = "IO direction",
1657                 .def    = "read",
1658                 .verify = rw_verify,
1659                 .category = FIO_OPT_C_IO,
1660                 .group  = FIO_OPT_G_IO_BASIC,
1661                 .posval = {
1662                           { .ival = "read",
1663                             .oval = TD_DDIR_READ,
1664                             .help = "Sequential read",
1665                           },
1666                           { .ival = "write",
1667                             .oval = TD_DDIR_WRITE,
1668                             .help = "Sequential write",
1669                           },
1670                           { .ival = "trim",
1671                             .oval = TD_DDIR_TRIM,
1672                             .help = "Sequential trim",
1673                           },
1674                           { .ival = "randread",
1675                             .oval = TD_DDIR_RANDREAD,
1676                             .help = "Random read",
1677                           },
1678                           { .ival = "randwrite",
1679                             .oval = TD_DDIR_RANDWRITE,
1680                             .help = "Random write",
1681                           },
1682                           { .ival = "randtrim",
1683                             .oval = TD_DDIR_RANDTRIM,
1684                             .help = "Random trim",
1685                           },
1686                           { .ival = "rw",
1687                             .oval = TD_DDIR_RW,
1688                             .help = "Sequential read and write mix",
1689                           },
1690                           { .ival = "readwrite",
1691                             .oval = TD_DDIR_RW,
1692                             .help = "Sequential read and write mix",
1693                           },
1694                           { .ival = "randrw",
1695                             .oval = TD_DDIR_RANDRW,
1696                             .help = "Random read and write mix"
1697                           },
1698                           { .ival = "trimwrite",
1699                             .oval = TD_DDIR_TRIMWRITE,
1700                             .help = "Trim and write mix, trims preceding writes"
1701                           },
1702                 },
1703         },
1704         {
1705                 .name   = "rw_sequencer",
1706                 .lname  = "RW Sequencer",
1707                 .type   = FIO_OPT_STR,
1708                 .off1   = offsetof(struct thread_options, rw_seq),
1709                 .help   = "IO offset generator modifier",
1710                 .def    = "sequential",
1711                 .category = FIO_OPT_C_IO,
1712                 .group  = FIO_OPT_G_IO_BASIC,
1713                 .posval = {
1714                           { .ival = "sequential",
1715                             .oval = RW_SEQ_SEQ,
1716                             .help = "Generate sequential offsets",
1717                           },
1718                           { .ival = "identical",
1719                             .oval = RW_SEQ_IDENT,
1720                             .help = "Generate identical offsets",
1721                           },
1722                 },
1723         },
1724
1725         {
1726                 .name   = "ioengine",
1727                 .lname  = "IO Engine",
1728                 .type   = FIO_OPT_STR_STORE,
1729                 .off1   = offsetof(struct thread_options, ioengine),
1730                 .help   = "IO engine to use",
1731                 .def    = FIO_PREFERRED_ENGINE,
1732                 .category = FIO_OPT_C_IO,
1733                 .group  = FIO_OPT_G_IO_BASIC,
1734                 .posval = {
1735                           { .ival = "sync",
1736                             .help = "Use read/write",
1737                           },
1738                           { .ival = "psync",
1739                             .help = "Use pread/pwrite",
1740                           },
1741                           { .ival = "vsync",
1742                             .help = "Use readv/writev",
1743                           },
1744 #ifdef CONFIG_PWRITEV
1745                           { .ival = "pvsync",
1746                             .help = "Use preadv/pwritev",
1747                           },
1748 #endif
1749 #ifdef FIO_HAVE_PWRITEV2
1750                           { .ival = "pvsync2",
1751                             .help = "Use preadv2/pwritev2",
1752                           },
1753 #endif
1754 #ifdef CONFIG_LIBAIO
1755                           { .ival = "libaio",
1756                             .help = "Linux native asynchronous IO",
1757                           },
1758 #endif
1759 #ifdef CONFIG_POSIXAIO
1760                           { .ival = "posixaio",
1761                             .help = "POSIX asynchronous IO",
1762                           },
1763 #endif
1764 #ifdef CONFIG_SOLARISAIO
1765                           { .ival = "solarisaio",
1766                             .help = "Solaris native asynchronous IO",
1767                           },
1768 #endif
1769 #ifdef CONFIG_WINDOWSAIO
1770                           { .ival = "windowsaio",
1771                             .help = "Windows native asynchronous IO"
1772                           },
1773 #endif
1774 #ifdef CONFIG_RBD
1775                           { .ival = "rbd",
1776                             .help = "Rados Block Device asynchronous IO"
1777                           },
1778 #endif
1779                           { .ival = "mmap",
1780                             .help = "Memory mapped IO"
1781                           },
1782 #ifdef CONFIG_LINUX_SPLICE
1783                           { .ival = "splice",
1784                             .help = "splice/vmsplice based IO",
1785                           },
1786                           { .ival = "netsplice",
1787                             .help = "splice/vmsplice to/from the network",
1788                           },
1789 #endif
1790 #ifdef FIO_HAVE_SGIO
1791                           { .ival = "sg",
1792                             .help = "SCSI generic v3 IO",
1793                           },
1794 #endif
1795                           { .ival = "null",
1796                             .help = "Testing engine (no data transfer)",
1797                           },
1798                           { .ival = "net",
1799                             .help = "Network IO",
1800                           },
1801                           { .ival = "cpuio",
1802                             .help = "CPU cycle burner engine",
1803                           },
1804 #ifdef CONFIG_GUASI
1805                           { .ival = "guasi",
1806                             .help = "GUASI IO engine",
1807                           },
1808 #endif
1809 #ifdef CONFIG_RDMA
1810                           { .ival = "rdma",
1811                             .help = "RDMA IO engine",
1812                           },
1813 #endif
1814 #ifdef CONFIG_FUSION_AW
1815                           { .ival = "fusion-aw-sync",
1816                             .help = "Fusion-io atomic write engine",
1817                           },
1818 #endif
1819 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1820                           { .ival = "e4defrag",
1821                             .help = "ext4 defrag engine",
1822                           },
1823 #endif
1824 #ifdef CONFIG_LINUX_FALLOCATE
1825                           { .ival = "falloc",
1826                             .help = "fallocate() file based engine",
1827                           },
1828 #endif
1829 #ifdef CONFIG_GFAPI
1830                           { .ival = "gfapi",
1831                             .help = "Glusterfs libgfapi(sync) based engine"
1832                           },
1833                           { .ival = "gfapi_async",
1834                             .help = "Glusterfs libgfapi(async) based engine"
1835                           },
1836 #endif
1837 #ifdef CONFIG_LIBHDFS
1838                           { .ival = "libhdfs",
1839                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1840                           },
1841 #endif
1842 #ifdef CONFIG_PMEMBLK
1843                           { .ival = "pmemblk",
1844                             .help = "PMDK libpmemblk based IO engine",
1845                           },
1846
1847 #endif
1848 #ifdef CONFIG_IME
1849                           { .ival = "ime_psync",
1850                             .help = "DDN's IME synchronous IO engine",
1851                           },
1852                           { .ival = "ime_psyncv",
1853                             .help = "DDN's IME synchronous IO engine using iovecs",
1854                           },
1855                           { .ival = "ime_aio",
1856                             .help = "DDN's IME asynchronous IO engine",
1857                           },
1858 #endif
1859 #ifdef CONFIG_LINUX_DEVDAX
1860                           { .ival = "dev-dax",
1861                             .help = "DAX Device based IO engine",
1862                           },
1863 #endif
1864                           {
1865                             .ival = "filecreate",
1866                             .help = "File creation engine",
1867                           },
1868                           { .ival = "external",
1869                             .help = "Load external engine (append name)",
1870                             .cb = str_ioengine_external_cb,
1871                           },
1872 #ifdef CONFIG_LIBPMEM
1873                           { .ival = "libpmem",
1874                             .help = "PMDK libpmem based IO engine",
1875                           },
1876 #endif
1877 #ifdef CONFIG_HTTP
1878                           { .ival = "http",
1879                             .help = "HTTP (WebDAV/S3) IO engine",
1880                           },
1881 #endif
1882                 },
1883         },
1884         {
1885                 .name   = "iodepth",
1886                 .lname  = "IO Depth",
1887                 .type   = FIO_OPT_INT,
1888                 .off1   = offsetof(struct thread_options, iodepth),
1889                 .help   = "Number of IO buffers to keep in flight",
1890                 .minval = 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",
1898                 .lname  = "IO Depth batch",
1899                 .alias  = "iodepth_batch_submit",
1900                 .type   = FIO_OPT_INT,
1901                 .off1   = offsetof(struct thread_options, iodepth_batch),
1902                 .help   = "Number of IO buffers to submit in one go",
1903                 .parent = "iodepth",
1904                 .hide   = 1,
1905                 .interval = 1,
1906                 .def    = "1",
1907                 .category = FIO_OPT_C_IO,
1908                 .group  = FIO_OPT_G_IO_BASIC,
1909         },
1910         {
1911                 .name   = "iodepth_batch_complete_min",
1912                 .lname  = "Min IO depth batch complete",
1913                 .alias  = "iodepth_batch_complete",
1914                 .type   = FIO_OPT_INT,
1915                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
1916                 .help   = "Min number of IO buffers to retrieve in one go",
1917                 .parent = "iodepth",
1918                 .hide   = 1,
1919                 .minval = 0,
1920                 .interval = 1,
1921                 .def    = "1",
1922                 .category = FIO_OPT_C_IO,
1923                 .group  = FIO_OPT_G_IO_BASIC,
1924         },
1925         {
1926                 .name   = "iodepth_batch_complete_max",
1927                 .lname  = "Max IO depth batch complete",
1928                 .type   = FIO_OPT_INT,
1929                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
1930                 .help   = "Max number of IO buffers to retrieve in one go",
1931                 .parent = "iodepth",
1932                 .hide   = 1,
1933                 .minval = 0,
1934                 .interval = 1,
1935                 .category = FIO_OPT_C_IO,
1936                 .group  = FIO_OPT_G_IO_BASIC,
1937         },
1938         {
1939                 .name   = "iodepth_low",
1940                 .lname  = "IO Depth batch low",
1941                 .type   = FIO_OPT_INT,
1942                 .off1   = offsetof(struct thread_options, iodepth_low),
1943                 .help   = "Low water mark for queuing depth",
1944                 .parent = "iodepth",
1945                 .hide   = 1,
1946                 .interval = 1,
1947                 .category = FIO_OPT_C_IO,
1948                 .group  = FIO_OPT_G_IO_BASIC,
1949         },
1950         {
1951                 .name   = "serialize_overlap",
1952                 .lname  = "Serialize overlap",
1953                 .off1   = offsetof(struct thread_options, serialize_overlap),
1954                 .type   = FIO_OPT_BOOL,
1955                 .help   = "Wait for in-flight IOs that collide to complete",
1956                 .parent = "iodepth",
1957                 .def    = "0",
1958                 .category = FIO_OPT_C_IO,
1959                 .group  = FIO_OPT_G_IO_BASIC,
1960         },
1961         {
1962                 .name   = "io_submit_mode",
1963                 .lname  = "IO submit mode",
1964                 .type   = FIO_OPT_STR,
1965                 .off1   = offsetof(struct thread_options, io_submit_mode),
1966                 .help   = "How IO submissions and completions are done",
1967                 .def    = "inline",
1968                 .category = FIO_OPT_C_IO,
1969                 .group  = FIO_OPT_G_IO_BASIC,
1970                 .posval = {
1971                           { .ival = "inline",
1972                             .oval = IO_MODE_INLINE,
1973                             .help = "Submit and complete IO inline",
1974                           },
1975                           { .ival = "offload",
1976                             .oval = IO_MODE_OFFLOAD,
1977                             .help = "Offload submit and complete to threads",
1978                           },
1979                 },
1980         },
1981         {
1982                 .name   = "size",
1983                 .lname  = "Size",
1984                 .type   = FIO_OPT_STR_VAL,
1985                 .cb     = str_size_cb,
1986                 .off1   = offsetof(struct thread_options, size),
1987                 .help   = "Total size of device or files",
1988                 .interval = 1024 * 1024,
1989                 .category = FIO_OPT_C_IO,
1990                 .group  = FIO_OPT_G_INVALID,
1991         },
1992         {
1993                 .name   = "io_size",
1994                 .alias  = "io_limit",
1995                 .lname  = "IO Size",
1996                 .type   = FIO_OPT_STR_VAL,
1997                 .off1   = offsetof(struct thread_options, io_size),
1998                 .help   = "Total size of I/O to be performed",
1999                 .interval = 1024 * 1024,
2000                 .category = FIO_OPT_C_IO,
2001                 .group  = FIO_OPT_G_INVALID,
2002         },
2003         {
2004                 .name   = "fill_device",
2005                 .lname  = "Fill device",
2006                 .alias  = "fill_fs",
2007                 .type   = FIO_OPT_BOOL,
2008                 .off1   = offsetof(struct thread_options, fill_device),
2009                 .help   = "Write until an ENOSPC error occurs",
2010                 .def    = "0",
2011                 .category = FIO_OPT_C_FILE,
2012                 .group  = FIO_OPT_G_INVALID,
2013         },
2014         {
2015                 .name   = "filesize",
2016                 .lname  = "File size",
2017                 .type   = FIO_OPT_STR_VAL,
2018                 .off1   = offsetof(struct thread_options, file_size_low),
2019                 .off2   = offsetof(struct thread_options, file_size_high),
2020                 .minval = 1,
2021                 .help   = "Size of individual files",
2022                 .interval = 1024 * 1024,
2023                 .category = FIO_OPT_C_FILE,
2024                 .group  = FIO_OPT_G_INVALID,
2025         },
2026         {
2027                 .name   = "file_append",
2028                 .lname  = "File append",
2029                 .type   = FIO_OPT_BOOL,
2030                 .off1   = offsetof(struct thread_options, file_append),
2031                 .help   = "IO will start at the end of the file(s)",
2032                 .def    = "0",
2033                 .category = FIO_OPT_C_FILE,
2034                 .group  = FIO_OPT_G_INVALID,
2035         },
2036         {
2037                 .name   = "offset",
2038                 .lname  = "IO offset",
2039                 .alias  = "fileoffset",
2040                 .type   = FIO_OPT_STR_VAL,
2041                 .cb     = str_offset_cb,
2042                 .off1   = offsetof(struct thread_options, start_offset),
2043                 .help   = "Start IO from this offset",
2044                 .def    = "0",
2045                 .interval = 1024 * 1024,
2046                 .category = FIO_OPT_C_IO,
2047                 .group  = FIO_OPT_G_INVALID,
2048         },
2049         {
2050                 .name   = "offset_align",
2051                 .lname  = "IO offset alignment",
2052                 .type   = FIO_OPT_INT,
2053                 .off1   = offsetof(struct thread_options, start_offset_align),
2054                 .help   = "Start IO from this offset alignment",
2055                 .def    = "0",
2056                 .interval = 512,
2057                 .category = FIO_OPT_C_IO,
2058                 .group  = FIO_OPT_G_INVALID,
2059         },
2060         {
2061                 .name   = "offset_increment",
2062                 .lname  = "IO offset increment",
2063                 .type   = FIO_OPT_STR_VAL,
2064                 .off1   = offsetof(struct thread_options, offset_increment),
2065                 .help   = "What is the increment from one offset to the next",
2066                 .parent = "offset",
2067                 .hide   = 1,
2068                 .def    = "0",
2069                 .interval = 1024 * 1024,
2070                 .category = FIO_OPT_C_IO,
2071                 .group  = FIO_OPT_G_INVALID,
2072         },
2073         {
2074                 .name   = "number_ios",
2075                 .lname  = "Number of IOs to perform",
2076                 .type   = FIO_OPT_STR_VAL,
2077                 .off1   = offsetof(struct thread_options, number_ios),
2078                 .help   = "Force job completion after this number of IOs",
2079                 .def    = "0",
2080                 .category = FIO_OPT_C_IO,
2081                 .group  = FIO_OPT_G_INVALID,
2082         },
2083         {
2084                 .name   = "bs",
2085                 .lname  = "Block size",
2086                 .alias  = "blocksize",
2087                 .type   = FIO_OPT_ULL,
2088                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2089                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2090                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2091                 .minval = 1,
2092                 .help   = "Block size unit",
2093                 .def    = "4096",
2094                 .parent = "rw",
2095                 .hide   = 1,
2096                 .interval = 512,
2097                 .category = FIO_OPT_C_IO,
2098                 .group  = FIO_OPT_G_INVALID,
2099         },
2100         {
2101                 .name   = "ba",
2102                 .lname  = "Block size align",
2103                 .alias  = "blockalign",
2104                 .type   = FIO_OPT_ULL,
2105                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2106                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2107                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2108                 .minval = 1,
2109                 .help   = "IO block offset alignment",
2110                 .parent = "rw",
2111                 .hide   = 1,
2112                 .interval = 512,
2113                 .category = FIO_OPT_C_IO,
2114                 .group  = FIO_OPT_G_INVALID,
2115         },
2116         {
2117                 .name   = "bsrange",
2118                 .lname  = "Block size range",
2119                 .alias  = "blocksize_range",
2120                 .type   = FIO_OPT_RANGE,
2121                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2122                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2123                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2124                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2125                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2126                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2127                 .minval = 1,
2128                 .help   = "Set block size range (in more detail than bs)",
2129                 .parent = "rw",
2130                 .hide   = 1,
2131                 .interval = 4096,
2132                 .category = FIO_OPT_C_IO,
2133                 .group  = FIO_OPT_G_INVALID,
2134         },
2135         {
2136                 .name   = "bssplit",
2137                 .lname  = "Block size split",
2138                 .type   = FIO_OPT_STR_ULL,
2139                 .cb     = str_bssplit_cb,
2140                 .off1   = offsetof(struct thread_options, bssplit),
2141                 .help   = "Set a specific mix of block sizes",
2142                 .parent = "rw",
2143                 .hide   = 1,
2144                 .category = FIO_OPT_C_IO,
2145                 .group  = FIO_OPT_G_INVALID,
2146         },
2147         {
2148                 .name   = "bs_unaligned",
2149                 .lname  = "Block size unaligned",
2150                 .alias  = "blocksize_unaligned",
2151                 .type   = FIO_OPT_STR_SET,
2152                 .off1   = offsetof(struct thread_options, bs_unaligned),
2153                 .help   = "Don't sector align IO buffer sizes",
2154                 .parent = "rw",
2155                 .hide   = 1,
2156                 .category = FIO_OPT_C_IO,
2157                 .group  = FIO_OPT_G_INVALID,
2158         },
2159         {
2160                 .name   = "bs_is_seq_rand",
2161                 .lname  = "Block size division is seq/random (not read/write)",
2162                 .type   = FIO_OPT_BOOL,
2163                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2164                 .help   = "Consider any blocksize setting to be sequential,random",
2165                 .def    = "0",
2166                 .parent = "blocksize",
2167                 .category = FIO_OPT_C_IO,
2168                 .group  = FIO_OPT_G_INVALID,
2169         },
2170         {
2171                 .name   = "randrepeat",
2172                 .lname  = "Random repeatable",
2173                 .type   = FIO_OPT_BOOL,
2174                 .off1   = offsetof(struct thread_options, rand_repeatable),
2175                 .help   = "Use repeatable random IO pattern",
2176                 .def    = "1",
2177                 .parent = "rw",
2178                 .hide   = 1,
2179                 .category = FIO_OPT_C_IO,
2180                 .group  = FIO_OPT_G_RANDOM,
2181         },
2182         {
2183                 .name   = "randseed",
2184                 .lname  = "The random generator seed",
2185                 .type   = FIO_OPT_STR_VAL,
2186                 .off1   = offsetof(struct thread_options, rand_seed),
2187                 .help   = "Set the random generator seed value",
2188                 .def    = "0x89",
2189                 .parent = "rw",
2190                 .category = FIO_OPT_C_IO,
2191                 .group  = FIO_OPT_G_RANDOM,
2192         },
2193         {
2194                 .name   = "use_os_rand",
2195                 .lname  = "Use OS random",
2196                 .type   = FIO_OPT_DEPRECATED,
2197                 .off1   = offsetof(struct thread_options, dep_use_os_rand),
2198                 .category = FIO_OPT_C_IO,
2199                 .group  = FIO_OPT_G_RANDOM,
2200         },
2201         {
2202                 .name   = "norandommap",
2203                 .lname  = "No randommap",
2204                 .type   = FIO_OPT_STR_SET,
2205                 .off1   = offsetof(struct thread_options, norandommap),
2206                 .help   = "Accept potential duplicate random blocks",
2207                 .parent = "rw",
2208                 .hide   = 1,
2209                 .hide_on_set = 1,
2210                 .category = FIO_OPT_C_IO,
2211                 .group  = FIO_OPT_G_RANDOM,
2212         },
2213         {
2214                 .name   = "softrandommap",
2215                 .lname  = "Soft randommap",
2216                 .type   = FIO_OPT_BOOL,
2217                 .off1   = offsetof(struct thread_options, softrandommap),
2218                 .help   = "Set norandommap if randommap allocation fails",
2219                 .parent = "norandommap",
2220                 .hide   = 1,
2221                 .def    = "0",
2222                 .category = FIO_OPT_C_IO,
2223                 .group  = FIO_OPT_G_RANDOM,
2224         },
2225         {
2226                 .name   = "random_generator",
2227                 .lname  = "Random Generator",
2228                 .type   = FIO_OPT_STR,
2229                 .off1   = offsetof(struct thread_options, random_generator),
2230                 .help   = "Type of random number generator to use",
2231                 .def    = "tausworthe",
2232                 .posval = {
2233                           { .ival = "tausworthe",
2234                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2235                             .help = "Strong Tausworthe generator",
2236                           },
2237                           { .ival = "lfsr",
2238                             .oval = FIO_RAND_GEN_LFSR,
2239                             .help = "Variable length LFSR",
2240                           },
2241                           {
2242                             .ival = "tausworthe64",
2243                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2244                             .help = "64-bit Tausworthe variant",
2245                           },
2246                 },
2247                 .category = FIO_OPT_C_IO,
2248                 .group  = FIO_OPT_G_RANDOM,
2249         },
2250         {
2251                 .name   = "random_distribution",
2252                 .lname  = "Random Distribution",
2253                 .type   = FIO_OPT_STR,
2254                 .off1   = offsetof(struct thread_options, random_distribution),
2255                 .cb     = str_random_distribution_cb,
2256                 .help   = "Random offset distribution generator",
2257                 .def    = "random",
2258                 .posval = {
2259                           { .ival = "random",
2260                             .oval = FIO_RAND_DIST_RANDOM,
2261                             .help = "Completely random",
2262                           },
2263                           { .ival = "zipf",
2264                             .oval = FIO_RAND_DIST_ZIPF,
2265                             .help = "Zipf distribution",
2266                           },
2267                           { .ival = "pareto",
2268                             .oval = FIO_RAND_DIST_PARETO,
2269                             .help = "Pareto distribution",
2270                           },
2271                           { .ival = "normal",
2272                             .oval = FIO_RAND_DIST_GAUSS,
2273                             .help = "Normal (Gaussian) distribution",
2274                           },
2275                           { .ival = "zoned",
2276                             .oval = FIO_RAND_DIST_ZONED,
2277                             .help = "Zoned random distribution",
2278                           },
2279                           { .ival = "zoned_abs",
2280                             .oval = FIO_RAND_DIST_ZONED_ABS,
2281                             .help = "Zoned absolute random distribution",
2282                           },
2283                 },
2284                 .category = FIO_OPT_C_IO,
2285                 .group  = FIO_OPT_G_RANDOM,
2286         },
2287         {
2288                 .name   = "percentage_random",
2289                 .lname  = "Percentage Random",
2290                 .type   = FIO_OPT_INT,
2291                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2292                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2293                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2294                 .maxval = 100,
2295                 .help   = "Percentage of seq/random mix that should be random",
2296                 .def    = "100,100,100",
2297                 .interval = 5,
2298                 .inverse = "percentage_sequential",
2299                 .category = FIO_OPT_C_IO,
2300                 .group  = FIO_OPT_G_RANDOM,
2301         },
2302         {
2303                 .name   = "percentage_sequential",
2304                 .lname  = "Percentage Sequential",
2305                 .type   = FIO_OPT_DEPRECATED,
2306                 .category = FIO_OPT_C_IO,
2307                 .group  = FIO_OPT_G_RANDOM,
2308         },
2309         {
2310                 .name   = "allrandrepeat",
2311                 .lname  = "All Random Repeat",
2312                 .type   = FIO_OPT_BOOL,
2313                 .off1   = offsetof(struct thread_options, allrand_repeatable),
2314                 .help   = "Use repeatable random numbers for everything",
2315                 .def    = "0",
2316                 .category = FIO_OPT_C_IO,
2317                 .group  = FIO_OPT_G_RANDOM,
2318         },
2319         {
2320                 .name   = "nrfiles",
2321                 .lname  = "Number of files",
2322                 .alias  = "nr_files",
2323                 .type   = FIO_OPT_INT,
2324                 .off1   = offsetof(struct thread_options, nr_files),
2325                 .help   = "Split job workload between this number of files",
2326                 .def    = "1",
2327                 .interval = 1,
2328                 .category = FIO_OPT_C_FILE,
2329                 .group  = FIO_OPT_G_INVALID,
2330         },
2331         {
2332                 .name   = "openfiles",
2333                 .lname  = "Number of open files",
2334                 .type   = FIO_OPT_INT,
2335                 .off1   = offsetof(struct thread_options, open_files),
2336                 .help   = "Number of files to keep open at the same time",
2337                 .category = FIO_OPT_C_FILE,
2338                 .group  = FIO_OPT_G_INVALID,
2339         },
2340         {
2341                 .name   = "file_service_type",
2342                 .lname  = "File service type",
2343                 .type   = FIO_OPT_STR,
2344                 .cb     = str_fst_cb,
2345                 .off1   = offsetof(struct thread_options, file_service_type),
2346                 .help   = "How to select which file to service next",
2347                 .def    = "roundrobin",
2348                 .category = FIO_OPT_C_FILE,
2349                 .group  = FIO_OPT_G_INVALID,
2350                 .posval = {
2351                           { .ival = "random",
2352                             .oval = FIO_FSERVICE_RANDOM,
2353                             .help = "Choose a file at random (uniform)",
2354                           },
2355                           { .ival = "zipf",
2356                             .oval = FIO_FSERVICE_ZIPF,
2357                             .help = "Zipf randomized",
2358                           },
2359                           { .ival = "pareto",
2360                             .oval = FIO_FSERVICE_PARETO,
2361                             .help = "Pareto randomized",
2362                           },
2363                           { .ival = "normal",
2364                             .oval = FIO_FSERVICE_GAUSS,
2365                             .help = "Normal (Gaussian) randomized",
2366                           },
2367                           { .ival = "gauss",
2368                             .oval = FIO_FSERVICE_GAUSS,
2369                             .help = "Alias for normal",
2370                           },
2371                           { .ival = "roundrobin",
2372                             .oval = FIO_FSERVICE_RR,
2373                             .help = "Round robin select files",
2374                           },
2375                           { .ival = "sequential",
2376                             .oval = FIO_FSERVICE_SEQ,
2377                             .help = "Finish one file before moving to the next",
2378                           },
2379                 },
2380                 .parent = "nrfiles",
2381                 .hide   = 1,
2382         },
2383 #ifdef FIO_HAVE_ANY_FALLOCATE
2384         {
2385                 .name   = "fallocate",
2386                 .lname  = "Fallocate",
2387                 .type   = FIO_OPT_STR,
2388                 .off1   = offsetof(struct thread_options, fallocate_mode),
2389                 .help   = "Whether pre-allocation is performed when laying out files",
2390                 .def    = "native",
2391                 .category = FIO_OPT_C_FILE,
2392                 .group  = FIO_OPT_G_INVALID,
2393                 .posval = {
2394                           { .ival = "none",
2395                             .oval = FIO_FALLOCATE_NONE,
2396                             .help = "Do not pre-allocate space",
2397                           },
2398                           { .ival = "native",
2399                             .oval = FIO_FALLOCATE_NATIVE,
2400                             .help = "Use native pre-allocation if possible",
2401                           },
2402 #ifdef CONFIG_POSIX_FALLOCATE
2403                           { .ival = "posix",
2404                             .oval = FIO_FALLOCATE_POSIX,
2405                             .help = "Use posix_fallocate()",
2406                           },
2407 #endif
2408 #ifdef CONFIG_LINUX_FALLOCATE
2409                           { .ival = "keep",
2410                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2411                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2412                           },
2413 #endif
2414                           /* Compatibility with former boolean values */
2415                           { .ival = "0",
2416                             .oval = FIO_FALLOCATE_NONE,
2417                             .help = "Alias for 'none'",
2418                           },
2419 #ifdef CONFIG_POSIX_FALLOCATE
2420                           { .ival = "1",
2421                             .oval = FIO_FALLOCATE_POSIX,
2422                             .help = "Alias for 'posix'",
2423                           },
2424 #endif
2425                 },
2426         },
2427 #else   /* FIO_HAVE_ANY_FALLOCATE */
2428         {
2429                 .name   = "fallocate",
2430                 .lname  = "Fallocate",
2431                 .type   = FIO_OPT_UNSUPPORTED,
2432                 .help   = "Your platform does not support fallocate",
2433         },
2434 #endif /* FIO_HAVE_ANY_FALLOCATE */
2435         {
2436                 .name   = "fadvise_hint",
2437                 .lname  = "Fadvise hint",
2438                 .type   = FIO_OPT_STR,
2439                 .off1   = offsetof(struct thread_options, fadvise_hint),
2440                 .posval = {
2441                           { .ival = "0",
2442                             .oval = F_ADV_NONE,
2443                             .help = "Don't issue fadvise/madvise",
2444                           },
2445                           { .ival = "1",
2446                             .oval = F_ADV_TYPE,
2447                             .help = "Advise using fio IO pattern",
2448                           },
2449                           { .ival = "random",
2450                             .oval = F_ADV_RANDOM,
2451                             .help = "Advise using FADV_RANDOM",
2452                           },
2453                           { .ival = "sequential",
2454                             .oval = F_ADV_SEQUENTIAL,
2455                             .help = "Advise using FADV_SEQUENTIAL",
2456                           },
2457                 },
2458                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2459                 .def    = "1",
2460                 .category = FIO_OPT_C_FILE,
2461                 .group  = FIO_OPT_G_INVALID,
2462         },
2463         {
2464                 .name   = "fsync",
2465                 .lname  = "Fsync",
2466                 .type   = FIO_OPT_INT,
2467                 .off1   = offsetof(struct thread_options, fsync_blocks),
2468                 .help   = "Issue fsync for writes every given number of blocks",
2469                 .def    = "0",
2470                 .interval = 1,
2471                 .category = FIO_OPT_C_FILE,
2472                 .group  = FIO_OPT_G_INVALID,
2473         },
2474         {
2475                 .name   = "fdatasync",
2476                 .lname  = "Fdatasync",
2477                 .type   = FIO_OPT_INT,
2478                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2479                 .help   = "Issue fdatasync for writes every given number of blocks",
2480                 .def    = "0",
2481                 .interval = 1,
2482                 .category = FIO_OPT_C_FILE,
2483                 .group  = FIO_OPT_G_INVALID,
2484         },
2485         {
2486                 .name   = "write_barrier",
2487                 .lname  = "Write barrier",
2488                 .type   = FIO_OPT_INT,
2489                 .off1   = offsetof(struct thread_options, barrier_blocks),
2490                 .help   = "Make every Nth write a barrier write",
2491                 .def    = "0",
2492                 .interval = 1,
2493                 .category = FIO_OPT_C_IO,
2494                 .group  = FIO_OPT_G_INVALID,
2495         },
2496 #ifdef CONFIG_SYNC_FILE_RANGE
2497         {
2498                 .name   = "sync_file_range",
2499                 .lname  = "Sync file range",
2500                 .posval = {
2501                           { .ival = "wait_before",
2502                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2503                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2504                             .orval  = 1,
2505                           },
2506                           { .ival = "write",
2507                             .oval = SYNC_FILE_RANGE_WRITE,
2508                             .help = "SYNC_FILE_RANGE_WRITE",
2509                             .orval  = 1,
2510                           },
2511                           {
2512                             .ival = "wait_after",
2513                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2514                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2515                             .orval  = 1,
2516                           },
2517                 },
2518                 .type   = FIO_OPT_STR_MULTI,
2519                 .cb     = str_sfr_cb,
2520                 .off1   = offsetof(struct thread_options, sync_file_range),
2521                 .help   = "Use sync_file_range()",
2522                 .category = FIO_OPT_C_FILE,
2523                 .group  = FIO_OPT_G_INVALID,
2524         },
2525 #else
2526         {
2527                 .name   = "sync_file_range",
2528                 .lname  = "Sync file range",
2529                 .type   = FIO_OPT_UNSUPPORTED,
2530                 .help   = "Your platform does not support sync_file_range",
2531         },
2532 #endif
2533         {
2534                 .name   = "direct",
2535                 .lname  = "Direct I/O",
2536                 .type   = FIO_OPT_BOOL,
2537                 .off1   = offsetof(struct thread_options, odirect),
2538                 .help   = "Use O_DIRECT IO (negates buffered)",
2539                 .def    = "0",
2540                 .inverse = "buffered",
2541                 .category = FIO_OPT_C_IO,
2542                 .group  = FIO_OPT_G_IO_TYPE,
2543         },
2544         {
2545                 .name   = "atomic",
2546                 .lname  = "Atomic I/O",
2547                 .type   = FIO_OPT_BOOL,
2548                 .off1   = offsetof(struct thread_options, oatomic),
2549                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2550                 .def    = "0",
2551                 .category = FIO_OPT_C_IO,
2552                 .group  = FIO_OPT_G_IO_TYPE,
2553         },
2554         {
2555                 .name   = "buffered",
2556                 .lname  = "Buffered I/O",
2557                 .type   = FIO_OPT_BOOL,
2558                 .off1   = offsetof(struct thread_options, odirect),
2559                 .neg    = 1,
2560                 .help   = "Use buffered IO (negates direct)",
2561                 .def    = "1",
2562                 .inverse = "direct",
2563                 .category = FIO_OPT_C_IO,
2564                 .group  = FIO_OPT_G_IO_TYPE,
2565         },
2566         {
2567                 .name   = "overwrite",
2568                 .lname  = "Overwrite",
2569                 .type   = FIO_OPT_BOOL,
2570                 .off1   = offsetof(struct thread_options, overwrite),
2571                 .help   = "When writing, set whether to overwrite current data",
2572                 .def    = "0",
2573                 .category = FIO_OPT_C_FILE,
2574                 .group  = FIO_OPT_G_INVALID,
2575         },
2576         {
2577                 .name   = "loops",
2578                 .lname  = "Loops",
2579                 .type   = FIO_OPT_INT,
2580                 .off1   = offsetof(struct thread_options, loops),
2581                 .help   = "Number of times to run the job",
2582                 .def    = "1",
2583                 .interval = 1,
2584                 .category = FIO_OPT_C_GENERAL,
2585                 .group  = FIO_OPT_G_RUNTIME,
2586         },
2587         {
2588                 .name   = "numjobs",
2589                 .lname  = "Number of jobs",
2590                 .type   = FIO_OPT_INT,
2591                 .off1   = offsetof(struct thread_options, numjobs),
2592                 .help   = "Duplicate this job this many times",
2593                 .def    = "1",
2594                 .interval = 1,
2595                 .category = FIO_OPT_C_GENERAL,
2596                 .group  = FIO_OPT_G_RUNTIME,
2597         },
2598         {
2599                 .name   = "startdelay",
2600                 .lname  = "Start delay",
2601                 .type   = FIO_OPT_STR_VAL_TIME,
2602                 .off1   = offsetof(struct thread_options, start_delay),
2603                 .off2   = offsetof(struct thread_options, start_delay_high),
2604                 .help   = "Only start job when this period has passed",
2605                 .def    = "0",
2606                 .is_seconds = 1,
2607                 .is_time = 1,
2608                 .category = FIO_OPT_C_GENERAL,
2609                 .group  = FIO_OPT_G_RUNTIME,
2610         },
2611         {
2612                 .name   = "runtime",
2613                 .lname  = "Runtime",
2614                 .alias  = "timeout",
2615                 .type   = FIO_OPT_STR_VAL_TIME,
2616                 .off1   = offsetof(struct thread_options, timeout),
2617                 .help   = "Stop workload when this amount of time has passed",
2618                 .def    = "0",
2619                 .is_seconds = 1,
2620                 .is_time = 1,
2621                 .category = FIO_OPT_C_GENERAL,
2622                 .group  = FIO_OPT_G_RUNTIME,
2623         },
2624         {
2625                 .name   = "time_based",
2626                 .lname  = "Time based",
2627                 .type   = FIO_OPT_STR_SET,
2628                 .off1   = offsetof(struct thread_options, time_based),
2629                 .help   = "Keep running until runtime/timeout is met",
2630                 .category = FIO_OPT_C_GENERAL,
2631                 .group  = FIO_OPT_G_RUNTIME,
2632         },
2633         {
2634                 .name   = "verify_only",
2635                 .lname  = "Verify only",
2636                 .type   = FIO_OPT_STR_SET,
2637                 .off1   = offsetof(struct thread_options, verify_only),
2638                 .help   = "Verifies previously written data is still valid",
2639                 .category = FIO_OPT_C_GENERAL,
2640                 .group  = FIO_OPT_G_RUNTIME,
2641         },
2642         {
2643                 .name   = "ramp_time",
2644                 .lname  = "Ramp time",
2645                 .type   = FIO_OPT_STR_VAL_TIME,
2646                 .off1   = offsetof(struct thread_options, ramp_time),
2647                 .help   = "Ramp up time before measuring performance",
2648                 .is_seconds = 1,
2649                 .is_time = 1,
2650                 .category = FIO_OPT_C_GENERAL,
2651                 .group  = FIO_OPT_G_RUNTIME,
2652         },
2653         {
2654                 .name   = "clocksource",
2655                 .lname  = "Clock source",
2656                 .type   = FIO_OPT_STR,
2657                 .cb     = fio_clock_source_cb,
2658                 .off1   = offsetof(struct thread_options, clocksource),
2659                 .help   = "What type of timing source to use",
2660                 .category = FIO_OPT_C_GENERAL,
2661                 .group  = FIO_OPT_G_CLOCK,
2662                 .posval = {
2663 #ifdef CONFIG_GETTIMEOFDAY
2664                           { .ival = "gettimeofday",
2665                             .oval = CS_GTOD,
2666                             .help = "Use gettimeofday(2) for timing",
2667                           },
2668 #endif
2669 #ifdef CONFIG_CLOCK_GETTIME
2670                           { .ival = "clock_gettime",
2671                             .oval = CS_CGETTIME,
2672                             .help = "Use clock_gettime(2) for timing",
2673                           },
2674 #endif
2675 #ifdef ARCH_HAVE_CPU_CLOCK
2676                           { .ival = "cpu",
2677                             .oval = CS_CPUCLOCK,
2678                             .help = "Use CPU private clock",
2679                           },
2680 #endif
2681                 },
2682         },
2683         {
2684                 .name   = "mem",
2685                 .alias  = "iomem",
2686                 .lname  = "I/O Memory",
2687                 .type   = FIO_OPT_STR,
2688                 .cb     = str_mem_cb,
2689                 .off1   = offsetof(struct thread_options, mem_type),
2690                 .help   = "Backing type for IO buffers",
2691                 .def    = "malloc",
2692                 .category = FIO_OPT_C_IO,
2693                 .group  = FIO_OPT_G_INVALID,
2694                 .posval = {
2695                           { .ival = "malloc",
2696                             .oval = MEM_MALLOC,
2697                             .help = "Use malloc(3) for IO buffers",
2698                           },
2699 #ifndef CONFIG_NO_SHM
2700                           { .ival = "shm",
2701                             .oval = MEM_SHM,
2702                             .help = "Use shared memory segments for IO buffers",
2703                           },
2704 #ifdef FIO_HAVE_HUGETLB
2705                           { .ival = "shmhuge",
2706                             .oval = MEM_SHMHUGE,
2707                             .help = "Like shm, but use huge pages",
2708                           },
2709 #endif
2710 #endif
2711                           { .ival = "mmap",
2712                             .oval = MEM_MMAP,
2713                             .help = "Use mmap(2) (file or anon) for IO buffers",
2714                           },
2715                           { .ival = "mmapshared",
2716                             .oval = MEM_MMAPSHARED,
2717                             .help = "Like mmap, but use the shared flag",
2718                           },
2719 #ifdef FIO_HAVE_HUGETLB
2720                           { .ival = "mmaphuge",
2721                             .oval = MEM_MMAPHUGE,
2722                             .help = "Like mmap, but use huge pages",
2723                           },
2724 #endif
2725 #ifdef CONFIG_CUDA
2726                           { .ival = "cudamalloc",
2727                             .oval = MEM_CUDA_MALLOC,
2728                             .help = "Allocate GPU device memory for GPUDirect RDMA",
2729                           },
2730 #endif
2731                   },
2732         },
2733         {
2734                 .name   = "iomem_align",
2735                 .alias  = "mem_align",
2736                 .lname  = "I/O memory alignment",
2737                 .type   = FIO_OPT_INT,
2738                 .off1   = offsetof(struct thread_options, mem_align),
2739                 .minval = 0,
2740                 .help   = "IO memory buffer offset alignment",
2741                 .def    = "0",
2742                 .parent = "iomem",
2743                 .hide   = 1,
2744                 .category = FIO_OPT_C_IO,
2745                 .group  = FIO_OPT_G_INVALID,
2746         },
2747         {
2748                 .name   = "verify",
2749                 .lname  = "Verify",
2750                 .type   = FIO_OPT_STR,
2751                 .off1   = offsetof(struct thread_options, verify),
2752                 .help   = "Verify data written",
2753                 .def    = "0",
2754                 .category = FIO_OPT_C_IO,
2755                 .group  = FIO_OPT_G_VERIFY,
2756                 .posval = {
2757                           { .ival = "0",
2758                             .oval = VERIFY_NONE,
2759                             .help = "Don't do IO verification",
2760                           },
2761                           { .ival = "md5",
2762                             .oval = VERIFY_MD5,
2763                             .help = "Use md5 checksums for verification",
2764                           },
2765                           { .ival = "crc64",
2766                             .oval = VERIFY_CRC64,
2767                             .help = "Use crc64 checksums for verification",
2768                           },
2769                           { .ival = "crc32",
2770                             .oval = VERIFY_CRC32,
2771                             .help = "Use crc32 checksums for verification",
2772                           },
2773                           { .ival = "crc32c-intel",
2774                             .oval = VERIFY_CRC32C,
2775                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2776                           },
2777                           { .ival = "crc32c",
2778                             .oval = VERIFY_CRC32C,
2779                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2780                           },
2781                           { .ival = "crc16",
2782                             .oval = VERIFY_CRC16,
2783                             .help = "Use crc16 checksums for verification",
2784                           },
2785                           { .ival = "crc7",
2786                             .oval = VERIFY_CRC7,
2787                             .help = "Use crc7 checksums for verification",
2788                           },
2789                           { .ival = "sha1",
2790                             .oval = VERIFY_SHA1,
2791                             .help = "Use sha1 checksums for verification",
2792                           },
2793                           { .ival = "sha256",
2794                             .oval = VERIFY_SHA256,
2795                             .help = "Use sha256 checksums for verification",
2796                           },
2797                           { .ival = "sha512",
2798                             .oval = VERIFY_SHA512,
2799                             .help = "Use sha512 checksums for verification",
2800                           },
2801                           { .ival = "sha3-224",
2802                             .oval = VERIFY_SHA3_224,
2803                             .help = "Use sha3-224 checksums for verification",
2804                           },
2805                           { .ival = "sha3-256",
2806                             .oval = VERIFY_SHA3_256,
2807                             .help = "Use sha3-256 checksums for verification",
2808                           },
2809                           { .ival = "sha3-384",
2810                             .oval = VERIFY_SHA3_384,
2811                             .help = "Use sha3-384 checksums for verification",
2812                           },
2813                           { .ival = "sha3-512",
2814                             .oval = VERIFY_SHA3_512,
2815                             .help = "Use sha3-512 checksums for verification",
2816                           },
2817                           { .ival = "xxhash",
2818                             .oval = VERIFY_XXHASH,
2819                             .help = "Use xxhash checksums for verification",
2820                           },
2821                           /* Meta information was included into verify_header,
2822                            * 'meta' verification is implied by default. */
2823                           { .ival = "meta",
2824                             .oval = VERIFY_HDR_ONLY,
2825                             .help = "Use io information for verification. "
2826                                     "Now is implied by default, thus option is obsolete, "
2827                                     "don't use it",
2828                           },
2829                           { .ival = "pattern",
2830                             .oval = VERIFY_PATTERN_NO_HDR,
2831                             .help = "Verify strict pattern",
2832                           },
2833                           {
2834                             .ival = "null",
2835                             .oval = VERIFY_NULL,
2836                             .help = "Pretend to verify",
2837                           },
2838                 },
2839         },
2840         {
2841                 .name   = "do_verify",
2842                 .lname  = "Perform verify step",
2843                 .type   = FIO_OPT_BOOL,
2844                 .off1   = offsetof(struct thread_options, do_verify),
2845                 .help   = "Run verification stage after write",
2846                 .def    = "1",
2847                 .parent = "verify",
2848                 .hide   = 1,
2849                 .category = FIO_OPT_C_IO,
2850                 .group  = FIO_OPT_G_VERIFY,
2851         },
2852         {
2853                 .name   = "verifysort",
2854                 .lname  = "Verify sort",
2855                 .type   = FIO_OPT_SOFT_DEPRECATED,
2856                 .category = FIO_OPT_C_IO,
2857                 .group  = FIO_OPT_G_VERIFY,
2858         },
2859         {
2860                 .name   = "verifysort_nr",
2861                 .lname  = "Verify Sort Nr",
2862                 .type   = FIO_OPT_SOFT_DEPRECATED,
2863                 .category = FIO_OPT_C_IO,
2864                 .group  = FIO_OPT_G_VERIFY,
2865         },
2866         {
2867                 .name   = "verify_interval",
2868                 .lname  = "Verify interval",
2869                 .type   = FIO_OPT_INT,
2870                 .off1   = offsetof(struct thread_options, verify_interval),
2871                 .minval = 2 * sizeof(struct verify_header),
2872                 .help   = "Store verify buffer header every N bytes",
2873                 .parent = "verify",
2874                 .hide   = 1,
2875                 .interval = 2 * sizeof(struct verify_header),
2876                 .category = FIO_OPT_C_IO,
2877                 .group  = FIO_OPT_G_VERIFY,
2878         },
2879         {
2880                 .name   = "verify_offset",
2881                 .lname  = "Verify offset",
2882                 .type   = FIO_OPT_INT,
2883                 .help   = "Offset verify header location by N bytes",
2884                 .off1   = offsetof(struct thread_options, verify_offset),
2885                 .minval = sizeof(struct verify_header),
2886                 .parent = "verify",
2887                 .hide   = 1,
2888                 .category = FIO_OPT_C_IO,
2889                 .group  = FIO_OPT_G_VERIFY,
2890         },
2891         {
2892                 .name   = "verify_pattern",
2893                 .lname  = "Verify pattern",
2894                 .type   = FIO_OPT_STR,
2895                 .cb     = str_verify_pattern_cb,
2896                 .off1   = offsetof(struct thread_options, verify_pattern),
2897                 .help   = "Fill pattern for IO buffers",
2898                 .parent = "verify",
2899                 .hide   = 1,
2900                 .category = FIO_OPT_C_IO,
2901                 .group  = FIO_OPT_G_VERIFY,
2902         },
2903         {
2904                 .name   = "verify_fatal",
2905                 .lname  = "Verify fatal",
2906                 .type   = FIO_OPT_BOOL,
2907                 .off1   = offsetof(struct thread_options, verify_fatal),
2908                 .def    = "0",
2909                 .help   = "Exit on a single verify failure, don't continue",
2910                 .parent = "verify",
2911                 .hide   = 1,
2912                 .category = FIO_OPT_C_IO,
2913                 .group  = FIO_OPT_G_VERIFY,
2914         },
2915         {
2916                 .name   = "verify_dump",
2917                 .lname  = "Verify dump",
2918                 .type   = FIO_OPT_BOOL,
2919                 .off1   = offsetof(struct thread_options, verify_dump),
2920                 .def    = "0",
2921                 .help   = "Dump contents of good and bad blocks on failure",
2922                 .parent = "verify",
2923                 .hide   = 1,
2924                 .category = FIO_OPT_C_IO,
2925                 .group  = FIO_OPT_G_VERIFY,
2926         },
2927         {
2928                 .name   = "verify_async",
2929                 .lname  = "Verify asynchronously",
2930                 .type   = FIO_OPT_INT,
2931                 .off1   = offsetof(struct thread_options, verify_async),
2932                 .def    = "0",
2933                 .help   = "Number of async verifier threads to use",
2934                 .parent = "verify",
2935                 .hide   = 1,
2936                 .category = FIO_OPT_C_IO,
2937                 .group  = FIO_OPT_G_VERIFY,
2938         },
2939         {
2940                 .name   = "verify_backlog",
2941                 .lname  = "Verify backlog",
2942                 .type   = FIO_OPT_STR_VAL,
2943                 .off1   = offsetof(struct thread_options, verify_backlog),
2944                 .help   = "Verify after this number of blocks are written",
2945                 .parent = "verify",
2946                 .hide   = 1,
2947                 .category = FIO_OPT_C_IO,
2948                 .group  = FIO_OPT_G_VERIFY,
2949         },
2950         {
2951                 .name   = "verify_backlog_batch",
2952                 .lname  = "Verify backlog batch",
2953                 .type   = FIO_OPT_INT,
2954                 .off1   = offsetof(struct thread_options, verify_batch),
2955                 .help   = "Verify this number of IO blocks",
2956                 .parent = "verify",
2957                 .hide   = 1,
2958                 .category = FIO_OPT_C_IO,
2959                 .group  = FIO_OPT_G_VERIFY,
2960         },
2961 #ifdef FIO_HAVE_CPU_AFFINITY
2962         {
2963                 .name   = "verify_async_cpus",
2964                 .lname  = "Async verify CPUs",
2965                 .type   = FIO_OPT_STR,
2966                 .cb     = str_verify_cpus_allowed_cb,
2967                 .off1   = offsetof(struct thread_options, verify_cpumask),
2968                 .help   = "Set CPUs allowed for async verify threads",
2969                 .parent = "verify_async",
2970                 .hide   = 1,
2971                 .category = FIO_OPT_C_IO,
2972                 .group  = FIO_OPT_G_VERIFY,
2973         },
2974 #else
2975         {
2976                 .name   = "verify_async_cpus",
2977                 .lname  = "Async verify CPUs",
2978                 .type   = FIO_OPT_UNSUPPORTED,
2979                 .help   = "Your platform does not support CPU affinities",
2980         },
2981 #endif
2982         {
2983                 .name   = "experimental_verify",
2984                 .lname  = "Experimental Verify",
2985                 .off1   = offsetof(struct thread_options, experimental_verify),
2986                 .type   = FIO_OPT_BOOL,
2987                 .help   = "Enable experimental verification",
2988                 .parent = "verify",
2989                 .category = FIO_OPT_C_IO,
2990                 .group  = FIO_OPT_G_VERIFY,
2991         },
2992         {
2993                 .name   = "verify_state_load",
2994                 .lname  = "Load verify state",
2995                 .off1   = offsetof(struct thread_options, verify_state),
2996                 .type   = FIO_OPT_BOOL,
2997                 .help   = "Load verify termination state",
2998                 .parent = "verify",
2999                 .category = FIO_OPT_C_IO,
3000                 .group  = FIO_OPT_G_VERIFY,
3001         },
3002         {
3003                 .name   = "verify_state_save",
3004                 .lname  = "Save verify state",
3005                 .off1   = offsetof(struct thread_options, verify_state_save),
3006                 .type   = FIO_OPT_BOOL,
3007                 .def    = "1",
3008                 .help   = "Save verify state on termination",
3009                 .parent = "verify",
3010                 .category = FIO_OPT_C_IO,
3011                 .group  = FIO_OPT_G_VERIFY,
3012         },
3013 #ifdef FIO_HAVE_TRIM
3014         {
3015                 .name   = "trim_percentage",
3016                 .lname  = "Trim percentage",
3017                 .type   = FIO_OPT_INT,
3018                 .off1   = offsetof(struct thread_options, trim_percentage),
3019                 .minval = 0,
3020                 .maxval = 100,
3021                 .help   = "Number of verify blocks to trim (i.e., discard)",
3022                 .parent = "verify",
3023                 .def    = "0",
3024                 .interval = 1,
3025                 .hide   = 1,
3026                 .category = FIO_OPT_C_IO,
3027                 .group  = FIO_OPT_G_TRIM,
3028         },
3029         {
3030                 .name   = "trim_verify_zero",
3031                 .lname  = "Verify trim zero",
3032                 .type   = FIO_OPT_BOOL,
3033                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3034                 .off1   = offsetof(struct thread_options, trim_zero),
3035                 .parent = "trim_percentage",
3036                 .hide   = 1,
3037                 .def    = "1",
3038                 .category = FIO_OPT_C_IO,
3039                 .group  = FIO_OPT_G_TRIM,
3040         },
3041         {
3042                 .name   = "trim_backlog",
3043                 .lname  = "Trim backlog",
3044                 .type   = FIO_OPT_STR_VAL,
3045                 .off1   = offsetof(struct thread_options, trim_backlog),
3046                 .help   = "Trim after this number of blocks are written",
3047                 .parent = "trim_percentage",
3048                 .hide   = 1,
3049                 .interval = 1,
3050                 .category = FIO_OPT_C_IO,
3051                 .group  = FIO_OPT_G_TRIM,
3052         },
3053         {
3054                 .name   = "trim_backlog_batch",
3055                 .lname  = "Trim backlog batch",
3056                 .type   = FIO_OPT_INT,
3057                 .off1   = offsetof(struct thread_options, trim_batch),
3058                 .help   = "Trim this number of IO blocks",
3059                 .parent = "trim_percentage",
3060                 .hide   = 1,
3061                 .interval = 1,
3062                 .category = FIO_OPT_C_IO,
3063                 .group  = FIO_OPT_G_TRIM,
3064         },
3065 #else
3066         {
3067                 .name   = "trim_percentage",
3068                 .lname  = "Trim percentage",
3069                 .type   = FIO_OPT_UNSUPPORTED,
3070                 .help   = "Fio does not support TRIM on your platform",
3071         },
3072         {
3073                 .name   = "trim_verify_zero",
3074                 .lname  = "Verify trim zero",
3075                 .type   = FIO_OPT_UNSUPPORTED,
3076                 .help   = "Fio does not support TRIM on your platform",
3077         },
3078         {
3079                 .name   = "trim_backlog",
3080                 .lname  = "Trim backlog",
3081                 .type   = FIO_OPT_UNSUPPORTED,
3082                 .help   = "Fio does not support TRIM on your platform",
3083         },
3084         {
3085                 .name   = "trim_backlog_batch",
3086                 .lname  = "Trim backlog batch",
3087                 .type   = FIO_OPT_UNSUPPORTED,
3088                 .help   = "Fio does not support TRIM on your platform",
3089         },
3090 #endif
3091         {
3092                 .name   = "write_iolog",
3093                 .lname  = "Write I/O log",
3094                 .type   = FIO_OPT_STR_STORE,
3095                 .off1   = offsetof(struct thread_options, write_iolog_file),
3096                 .help   = "Store IO pattern to file",
3097                 .category = FIO_OPT_C_IO,
3098                 .group  = FIO_OPT_G_IOLOG,
3099         },
3100         {
3101                 .name   = "read_iolog",
3102                 .lname  = "Read I/O log",
3103                 .type   = FIO_OPT_STR_STORE,
3104                 .off1   = offsetof(struct thread_options, read_iolog_file),
3105                 .help   = "Playback IO pattern from file",
3106                 .category = FIO_OPT_C_IO,
3107                 .group  = FIO_OPT_G_IOLOG,
3108         },
3109         {
3110                 .name   = "read_iolog_chunked",
3111                 .lname  = "Read I/O log in parts",
3112                 .type   = FIO_OPT_BOOL,
3113                 .off1   = offsetof(struct thread_options, read_iolog_chunked),
3114                 .def    = "0",
3115                 .parent = "read_iolog",
3116                 .help   = "Parse IO pattern in chunks",
3117                 .category = FIO_OPT_C_IO,
3118                 .group  = FIO_OPT_G_IOLOG,
3119         },
3120         {
3121                 .name   = "replay_no_stall",
3122                 .lname  = "Don't stall on replay",
3123                 .type   = FIO_OPT_BOOL,
3124                 .off1   = offsetof(struct thread_options, no_stall),
3125                 .def    = "0",
3126                 .parent = "read_iolog",
3127                 .hide   = 1,
3128                 .help   = "Playback IO pattern file as fast as possible without stalls",
3129                 .category = FIO_OPT_C_IO,
3130                 .group  = FIO_OPT_G_IOLOG,
3131         },
3132         {
3133                 .name   = "replay_redirect",
3134                 .lname  = "Redirect device for replay",
3135                 .type   = FIO_OPT_STR_STORE,
3136                 .off1   = offsetof(struct thread_options, replay_redirect),
3137                 .parent = "read_iolog",
3138                 .hide   = 1,
3139                 .help   = "Replay all I/O onto this device, regardless of trace device",
3140                 .category = FIO_OPT_C_IO,
3141                 .group  = FIO_OPT_G_IOLOG,
3142         },
3143         {
3144                 .name   = "replay_scale",
3145                 .lname  = "Replace offset scale factor",
3146                 .type   = FIO_OPT_INT,
3147                 .off1   = offsetof(struct thread_options, replay_scale),
3148                 .parent = "read_iolog",
3149                 .def    = "1",
3150                 .help   = "Align offsets to this blocksize",
3151                 .category = FIO_OPT_C_IO,
3152                 .group  = FIO_OPT_G_IOLOG,
3153         },
3154         {
3155                 .name   = "replay_align",
3156                 .lname  = "Replace alignment",
3157                 .type   = FIO_OPT_INT,
3158                 .off1   = offsetof(struct thread_options, replay_align),
3159                 .parent = "read_iolog",
3160                 .help   = "Scale offset down by this factor",
3161                 .category = FIO_OPT_C_IO,
3162                 .group  = FIO_OPT_G_IOLOG,
3163                 .pow2   = 1,
3164         },
3165         {
3166                 .name   = "replay_time_scale",
3167                 .lname  = "Replay Time Scale",
3168                 .type   = FIO_OPT_INT,
3169                 .off1   = offsetof(struct thread_options, replay_time_scale),
3170                 .def    = "100",
3171                 .minval = 1,
3172                 .parent = "read_iolog",
3173                 .hide   = 1,
3174                 .help   = "Scale time for replay events",
3175                 .category = FIO_OPT_C_IO,
3176                 .group  = FIO_OPT_G_IOLOG,
3177         },
3178         {
3179                 .name   = "replay_skip",
3180                 .lname  = "Replay Skip",
3181                 .type   = FIO_OPT_STR,
3182                 .cb     = str_replay_skip_cb,
3183                 .off1   = offsetof(struct thread_options, replay_skip),
3184                 .parent = "read_iolog",
3185                 .help   = "Skip certain IO types (read,write,trim,flush)",
3186                 .category = FIO_OPT_C_IO,
3187                 .group  = FIO_OPT_G_IOLOG,
3188         },
3189         {
3190                 .name   = "exec_prerun",
3191                 .lname  = "Pre-execute runnable",
3192                 .type   = FIO_OPT_STR_STORE,
3193                 .off1   = offsetof(struct thread_options, exec_prerun),
3194                 .help   = "Execute this file prior to running job",
3195                 .category = FIO_OPT_C_GENERAL,
3196                 .group  = FIO_OPT_G_INVALID,
3197         },
3198         {
3199                 .name   = "exec_postrun",
3200                 .lname  = "Post-execute runnable",
3201                 .type   = FIO_OPT_STR_STORE,
3202                 .off1   = offsetof(struct thread_options, exec_postrun),
3203                 .help   = "Execute this file after running job",
3204                 .category = FIO_OPT_C_GENERAL,
3205                 .group  = FIO_OPT_G_INVALID,
3206         },
3207 #ifdef FIO_HAVE_IOSCHED_SWITCH
3208         {
3209                 .name   = "ioscheduler",
3210                 .lname  = "I/O scheduler",
3211                 .type   = FIO_OPT_STR_STORE,
3212                 .off1   = offsetof(struct thread_options, ioscheduler),
3213                 .help   = "Use this IO scheduler on the backing device",
3214                 .category = FIO_OPT_C_FILE,
3215                 .group  = FIO_OPT_G_INVALID,
3216         },
3217 #else
3218         {
3219                 .name   = "ioscheduler",
3220                 .lname  = "I/O scheduler",
3221                 .type   = FIO_OPT_UNSUPPORTED,
3222                 .help   = "Your platform does not support IO scheduler switching",
3223         },
3224 #endif
3225         {
3226                 .name   = "zonesize",
3227                 .lname  = "Zone size",
3228                 .type   = FIO_OPT_STR_VAL,
3229                 .off1   = offsetof(struct thread_options, zone_size),
3230                 .help   = "Amount of data to read per zone",
3231                 .def    = "0",
3232                 .interval = 1024 * 1024,
3233                 .category = FIO_OPT_C_IO,
3234                 .group  = FIO_OPT_G_ZONE,
3235         },
3236         {
3237                 .name   = "zonerange",
3238                 .lname  = "Zone range",
3239                 .type   = FIO_OPT_STR_VAL,
3240                 .off1   = offsetof(struct thread_options, zone_range),
3241                 .help   = "Give size of an IO zone",
3242                 .def    = "0",
3243                 .interval = 1024 * 1024,
3244                 .category = FIO_OPT_C_IO,
3245                 .group  = FIO_OPT_G_ZONE,
3246         },
3247         {
3248                 .name   = "zoneskip",
3249                 .lname  = "Zone skip",
3250                 .type   = FIO_OPT_STR_VAL,
3251                 .off1   = offsetof(struct thread_options, zone_skip),
3252                 .help   = "Space between IO zones",
3253                 .def    = "0",
3254                 .interval = 1024 * 1024,
3255                 .category = FIO_OPT_C_IO,
3256                 .group  = FIO_OPT_G_ZONE,
3257         },
3258         {
3259                 .name   = "lockmem",
3260                 .lname  = "Lock memory",
3261                 .type   = FIO_OPT_STR_VAL,
3262                 .off1   = offsetof(struct thread_options, lockmem),
3263                 .help   = "Lock down this amount of memory (per worker)",
3264                 .def    = "0",
3265                 .interval = 1024 * 1024,
3266                 .category = FIO_OPT_C_GENERAL,
3267                 .group  = FIO_OPT_G_INVALID,
3268         },
3269         {
3270                 .name   = "rwmixread",
3271                 .lname  = "Read/write mix read",
3272                 .type   = FIO_OPT_INT,
3273                 .cb     = str_rwmix_read_cb,
3274                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3275                 .maxval = 100,
3276                 .help   = "Percentage of mixed workload that is reads",
3277                 .def    = "50",
3278                 .interval = 5,
3279                 .inverse = "rwmixwrite",
3280                 .category = FIO_OPT_C_IO,
3281                 .group  = FIO_OPT_G_RWMIX,
3282         },
3283         {
3284                 .name   = "rwmixwrite",
3285                 .lname  = "Read/write mix write",
3286                 .type   = FIO_OPT_INT,
3287                 .cb     = str_rwmix_write_cb,
3288                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3289                 .maxval = 100,
3290                 .help   = "Percentage of mixed workload that is writes",
3291                 .def    = "50",
3292                 .interval = 5,
3293                 .inverse = "rwmixread",
3294                 .category = FIO_OPT_C_IO,
3295                 .group  = FIO_OPT_G_RWMIX,
3296         },
3297         {
3298                 .name   = "rwmixcycle",
3299                 .lname  = "Read/write mix cycle",
3300                 .type   = FIO_OPT_DEPRECATED,
3301                 .category = FIO_OPT_C_IO,
3302                 .group  = FIO_OPT_G_RWMIX,
3303         },
3304         {
3305                 .name   = "nice",
3306                 .lname  = "Nice",
3307                 .type   = FIO_OPT_INT,
3308                 .off1   = offsetof(struct thread_options, nice),
3309                 .help   = "Set job CPU nice value",
3310                 .minval = -20,
3311                 .maxval = 19,
3312                 .def    = "0",
3313                 .interval = 1,
3314                 .category = FIO_OPT_C_GENERAL,
3315                 .group  = FIO_OPT_G_CRED,
3316         },
3317 #ifdef FIO_HAVE_IOPRIO
3318         {
3319                 .name   = "prio",
3320                 .lname  = "I/O nice priority",
3321                 .type   = FIO_OPT_INT,
3322                 .off1   = offsetof(struct thread_options, ioprio),
3323                 .help   = "Set job IO priority value",
3324                 .minval = IOPRIO_MIN_PRIO,
3325                 .maxval = IOPRIO_MAX_PRIO,
3326                 .interval = 1,
3327                 .category = FIO_OPT_C_GENERAL,
3328                 .group  = FIO_OPT_G_CRED,
3329         },
3330 #else
3331         {
3332                 .name   = "prio",
3333                 .lname  = "I/O nice priority",
3334                 .type   = FIO_OPT_UNSUPPORTED,
3335                 .help   = "Your platform does not support IO priorities",
3336         },
3337 #endif
3338 #ifdef FIO_HAVE_IOPRIO_CLASS
3339 #ifndef FIO_HAVE_IOPRIO
3340 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3341 #endif
3342         {
3343                 .name   = "prioclass",
3344                 .lname  = "I/O nice priority class",
3345                 .type   = FIO_OPT_INT,
3346                 .off1   = offsetof(struct thread_options, ioprio_class),
3347                 .help   = "Set job IO priority class",
3348                 .minval = IOPRIO_MIN_PRIO_CLASS,
3349                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3350                 .interval = 1,
3351                 .category = FIO_OPT_C_GENERAL,
3352                 .group  = FIO_OPT_G_CRED,
3353         },
3354 #else
3355         {
3356                 .name   = "prioclass",
3357                 .lname  = "I/O nice priority class",
3358                 .type   = FIO_OPT_UNSUPPORTED,
3359                 .help   = "Your platform does not support IO priority classes",
3360         },
3361 #endif
3362         {
3363                 .name   = "thinktime",
3364                 .lname  = "Thinktime",
3365                 .type   = FIO_OPT_INT,
3366                 .off1   = offsetof(struct thread_options, thinktime),
3367                 .help   = "Idle time between IO buffers (usec)",
3368                 .def    = "0",
3369                 .is_time = 1,
3370                 .category = FIO_OPT_C_IO,
3371                 .group  = FIO_OPT_G_THINKTIME,
3372         },
3373         {
3374                 .name   = "thinktime_spin",
3375                 .lname  = "Thinktime spin",
3376                 .type   = FIO_OPT_INT,
3377                 .off1   = offsetof(struct thread_options, thinktime_spin),
3378                 .help   = "Start think time by spinning this amount (usec)",
3379                 .def    = "0",
3380                 .is_time = 1,
3381                 .parent = "thinktime",
3382                 .hide   = 1,
3383                 .category = FIO_OPT_C_IO,
3384                 .group  = FIO_OPT_G_THINKTIME,
3385         },
3386         {
3387                 .name   = "thinktime_blocks",
3388                 .lname  = "Thinktime blocks",
3389                 .type   = FIO_OPT_INT,
3390                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3391                 .help   = "IO buffer period between 'thinktime'",
3392                 .def    = "1",
3393                 .parent = "thinktime",
3394                 .hide   = 1,
3395                 .category = FIO_OPT_C_IO,
3396                 .group  = FIO_OPT_G_THINKTIME,
3397         },
3398         {
3399                 .name   = "rate",
3400                 .lname  = "I/O rate",
3401                 .type   = FIO_OPT_INT,
3402                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3403                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3404                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3405                 .help   = "Set bandwidth rate",
3406                 .category = FIO_OPT_C_IO,
3407                 .group  = FIO_OPT_G_RATE,
3408         },
3409         {
3410                 .name   = "rate_min",
3411                 .alias  = "ratemin",
3412                 .lname  = "I/O min rate",
3413                 .type   = FIO_OPT_INT,
3414                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3415                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3416                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3417                 .help   = "Job must meet this rate or it will be shutdown",
3418                 .parent = "rate",
3419                 .hide   = 1,
3420                 .category = FIO_OPT_C_IO,
3421                 .group  = FIO_OPT_G_RATE,
3422         },
3423         {
3424                 .name   = "rate_iops",
3425                 .lname  = "I/O rate IOPS",
3426                 .type   = FIO_OPT_INT,
3427                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3428                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3429                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3430                 .help   = "Limit IO used to this number of IO operations/sec",
3431                 .hide   = 1,
3432                 .category = FIO_OPT_C_IO,
3433                 .group  = FIO_OPT_G_RATE,
3434         },
3435         {
3436                 .name   = "rate_iops_min",
3437                 .lname  = "I/O min rate IOPS",
3438                 .type   = FIO_OPT_INT,
3439                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3440                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3441                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3442                 .help   = "Job must meet this rate or it will be shut down",
3443                 .parent = "rate_iops",
3444                 .hide   = 1,
3445                 .category = FIO_OPT_C_IO,
3446                 .group  = FIO_OPT_G_RATE,
3447         },
3448         {
3449                 .name   = "rate_process",
3450                 .lname  = "Rate Process",
3451                 .type   = FIO_OPT_STR,
3452                 .off1   = offsetof(struct thread_options, rate_process),
3453                 .help   = "What process controls how rated IO is managed",
3454                 .def    = "linear",
3455                 .category = FIO_OPT_C_IO,
3456                 .group  = FIO_OPT_G_RATE,
3457                 .posval = {
3458                           { .ival = "linear",
3459                             .oval = RATE_PROCESS_LINEAR,
3460                             .help = "Linear rate of IO",
3461                           },
3462                           {
3463                             .ival = "poisson",
3464                             .oval = RATE_PROCESS_POISSON,
3465                             .help = "Rate follows Poisson process",
3466                           },
3467                 },
3468                 .parent = "rate",
3469         },
3470         {
3471                 .name   = "rate_cycle",
3472                 .alias  = "ratecycle",
3473                 .lname  = "I/O rate cycle",
3474                 .type   = FIO_OPT_INT,
3475                 .off1   = offsetof(struct thread_options, ratecycle),
3476                 .help   = "Window average for rate limits (msec)",
3477                 .def    = "1000",
3478                 .parent = "rate",
3479                 .hide   = 1,
3480                 .category = FIO_OPT_C_IO,
3481                 .group  = FIO_OPT_G_RATE,
3482         },
3483         {
3484                 .name   = "rate_ignore_thinktime",
3485                 .lname  = "Rate ignore thinktime",
3486                 .type   = FIO_OPT_BOOL,
3487                 .off1   = offsetof(struct thread_options, rate_ign_think),
3488                 .help   = "Rated IO ignores thinktime settings",
3489                 .parent = "rate",
3490                 .category = FIO_OPT_C_IO,
3491                 .group  = FIO_OPT_G_RATE,
3492         },
3493         {
3494                 .name   = "max_latency",
3495                 .lname  = "Max Latency (usec)",
3496                 .type   = FIO_OPT_STR_VAL_TIME,
3497                 .off1   = offsetof(struct thread_options, max_latency),
3498                 .help   = "Maximum tolerated IO latency (usec)",
3499                 .is_time = 1,
3500                 .category = FIO_OPT_C_IO,
3501                 .group = FIO_OPT_G_LATPROF,
3502         },
3503         {
3504                 .name   = "latency_target",
3505                 .lname  = "Latency Target (usec)",
3506                 .type   = FIO_OPT_STR_VAL_TIME,
3507                 .off1   = offsetof(struct thread_options, latency_target),
3508                 .help   = "Ramp to max queue depth supporting this latency",
3509                 .is_time = 1,
3510                 .category = FIO_OPT_C_IO,
3511                 .group  = FIO_OPT_G_LATPROF,
3512         },
3513         {
3514                 .name   = "latency_window",
3515                 .lname  = "Latency Window (usec)",
3516                 .type   = FIO_OPT_STR_VAL_TIME,
3517                 .off1   = offsetof(struct thread_options, latency_window),
3518                 .help   = "Time to sustain latency_target",
3519                 .is_time = 1,
3520                 .category = FIO_OPT_C_IO,
3521                 .group  = FIO_OPT_G_LATPROF,
3522         },
3523         {
3524                 .name   = "latency_percentile",
3525                 .lname  = "Latency Percentile",
3526                 .type   = FIO_OPT_FLOAT_LIST,
3527                 .off1   = offsetof(struct thread_options, latency_percentile),
3528                 .help   = "Percentile of IOs must be below latency_target",
3529                 .def    = "100",
3530                 .maxlen = 1,
3531                 .minfp  = 0.0,
3532                 .maxfp  = 100.0,
3533                 .category = FIO_OPT_C_IO,
3534                 .group  = FIO_OPT_G_LATPROF,
3535         },
3536         {
3537                 .name   = "invalidate",
3538                 .lname  = "Cache invalidate",
3539                 .type   = FIO_OPT_BOOL,
3540                 .off1   = offsetof(struct thread_options, invalidate_cache),
3541                 .help   = "Invalidate buffer/page cache prior to running job",
3542                 .def    = "1",
3543                 .category = FIO_OPT_C_IO,
3544                 .group  = FIO_OPT_G_IO_TYPE,
3545         },
3546         {
3547                 .name   = "sync",
3548                 .lname  = "Synchronous I/O",
3549                 .type   = FIO_OPT_BOOL,
3550                 .off1   = offsetof(struct thread_options, sync_io),
3551                 .help   = "Use O_SYNC for buffered writes",
3552                 .def    = "0",
3553                 .parent = "buffered",
3554                 .hide   = 1,
3555                 .category = FIO_OPT_C_IO,
3556                 .group  = FIO_OPT_G_IO_TYPE,
3557         },
3558 #ifdef FIO_HAVE_WRITE_HINT
3559         {
3560                 .name   = "write_hint",
3561                 .lname  = "Write hint",
3562                 .type   = FIO_OPT_STR,
3563                 .off1   = offsetof(struct thread_options, write_hint),
3564                 .help   = "Set expected write life time",
3565                 .category = FIO_OPT_C_ENGINE,
3566                 .group  = FIO_OPT_G_INVALID,
3567                 .posval = {
3568                           { .ival = "none",
3569                             .oval = RWH_WRITE_LIFE_NONE,
3570                           },
3571                           { .ival = "short",
3572                             .oval = RWH_WRITE_LIFE_SHORT,
3573                           },
3574                           { .ival = "medium",
3575                             .oval = RWH_WRITE_LIFE_MEDIUM,
3576                           },
3577                           { .ival = "long",
3578                             .oval = RWH_WRITE_LIFE_LONG,
3579                           },
3580                           { .ival = "extreme",
3581                             .oval = RWH_WRITE_LIFE_EXTREME,
3582                           },
3583                 },
3584         },
3585 #endif
3586         {
3587                 .name   = "create_serialize",
3588                 .lname  = "Create serialize",
3589                 .type   = FIO_OPT_BOOL,
3590                 .off1   = offsetof(struct thread_options, create_serialize),
3591                 .help   = "Serialize creation of job files",
3592                 .def    = "1",
3593                 .category = FIO_OPT_C_FILE,
3594                 .group  = FIO_OPT_G_INVALID,
3595         },
3596         {
3597                 .name   = "create_fsync",
3598                 .lname  = "Create fsync",
3599                 .type   = FIO_OPT_BOOL,
3600                 .off1   = offsetof(struct thread_options, create_fsync),
3601                 .help   = "fsync file after creation",
3602                 .def    = "1",
3603                 .category = FIO_OPT_C_FILE,
3604                 .group  = FIO_OPT_G_INVALID,
3605         },
3606         {
3607                 .name   = "create_on_open",
3608                 .lname  = "Create on open",
3609                 .type   = FIO_OPT_BOOL,
3610                 .off1   = offsetof(struct thread_options, create_on_open),
3611                 .help   = "Create files when they are opened for IO",
3612                 .def    = "0",
3613                 .category = FIO_OPT_C_FILE,
3614                 .group  = FIO_OPT_G_INVALID,
3615         },
3616         {
3617                 .name   = "create_only",
3618                 .lname  = "Create Only",
3619                 .type   = FIO_OPT_BOOL,
3620                 .off1   = offsetof(struct thread_options, create_only),
3621                 .help   = "Only perform file creation phase",
3622                 .category = FIO_OPT_C_FILE,
3623                 .def    = "0",
3624         },
3625         {
3626                 .name   = "allow_file_create",
3627                 .lname  = "Allow file create",
3628                 .type   = FIO_OPT_BOOL,
3629                 .off1   = offsetof(struct thread_options, allow_create),
3630                 .help   = "Permit fio to create files, if they don't exist",
3631                 .def    = "1",
3632                 .category = FIO_OPT_C_FILE,
3633                 .group  = FIO_OPT_G_FILENAME,
3634         },
3635         {
3636                 .name   = "allow_mounted_write",
3637                 .lname  = "Allow mounted write",
3638                 .type   = FIO_OPT_BOOL,
3639                 .off1   = offsetof(struct thread_options, allow_mounted_write),
3640                 .help   = "Allow writes to a mounted partition",
3641                 .def    = "0",
3642                 .category = FIO_OPT_C_FILE,
3643                 .group  = FIO_OPT_G_FILENAME,
3644         },
3645         {
3646                 .name   = "pre_read",
3647                 .lname  = "Pre-read files",
3648                 .type   = FIO_OPT_BOOL,
3649                 .off1   = offsetof(struct thread_options, pre_read),
3650                 .help   = "Pre-read files before starting official testing",
3651                 .def    = "0",
3652                 .category = FIO_OPT_C_FILE,
3653                 .group  = FIO_OPT_G_INVALID,
3654         },
3655 #ifdef FIO_HAVE_CPU_AFFINITY
3656         {
3657                 .name   = "cpumask",
3658                 .lname  = "CPU mask",
3659                 .type   = FIO_OPT_INT,
3660                 .cb     = str_cpumask_cb,
3661                 .off1   = offsetof(struct thread_options, cpumask),
3662                 .help   = "CPU affinity mask",
3663                 .category = FIO_OPT_C_GENERAL,
3664                 .group  = FIO_OPT_G_CRED,
3665         },
3666         {
3667                 .name   = "cpus_allowed",
3668                 .lname  = "CPUs allowed",
3669                 .type   = FIO_OPT_STR,
3670                 .cb     = str_cpus_allowed_cb,
3671                 .off1   = offsetof(struct thread_options, cpumask),
3672                 .help   = "Set CPUs allowed",
3673                 .category = FIO_OPT_C_GENERAL,
3674                 .group  = FIO_OPT_G_CRED,
3675         },
3676         {
3677                 .name   = "cpus_allowed_policy",
3678                 .lname  = "CPUs allowed distribution policy",
3679                 .type   = FIO_OPT_STR,
3680                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
3681                 .help   = "Distribution policy for cpus_allowed",
3682                 .parent = "cpus_allowed",
3683                 .prio   = 1,
3684                 .posval = {
3685                           { .ival = "shared",
3686                             .oval = FIO_CPUS_SHARED,
3687                             .help = "Mask shared between threads",
3688                           },
3689                           { .ival = "split",
3690                             .oval = FIO_CPUS_SPLIT,
3691                             .help = "Mask split between threads",
3692                           },
3693                 },
3694                 .category = FIO_OPT_C_GENERAL,
3695                 .group  = FIO_OPT_G_CRED,
3696         },
3697 #else
3698         {
3699                 .name   = "cpumask",
3700                 .lname  = "CPU mask",
3701                 .type   = FIO_OPT_UNSUPPORTED,
3702                 .help   = "Your platform does not support CPU affinities",
3703         },
3704         {
3705                 .name   = "cpus_allowed",
3706                 .lname  = "CPUs allowed",
3707                 .type   = FIO_OPT_UNSUPPORTED,
3708                 .help   = "Your platform does not support CPU affinities",
3709         },
3710         {
3711                 .name   = "cpus_allowed_policy",
3712                 .lname  = "CPUs allowed distribution policy",
3713                 .type   = FIO_OPT_UNSUPPORTED,
3714                 .help   = "Your platform does not support CPU affinities",
3715         },
3716 #endif
3717 #ifdef CONFIG_LIBNUMA
3718         {
3719                 .name   = "numa_cpu_nodes",
3720                 .lname  = "NUMA CPU Nodes",
3721                 .type   = FIO_OPT_STR,
3722                 .cb     = str_numa_cpunodes_cb,
3723                 .off1   = offsetof(struct thread_options, numa_cpunodes),
3724                 .help   = "NUMA CPU nodes bind",
3725                 .category = FIO_OPT_C_GENERAL,
3726                 .group  = FIO_OPT_G_INVALID,
3727         },
3728         {
3729                 .name   = "numa_mem_policy",
3730                 .lname  = "NUMA Memory Policy",
3731                 .type   = FIO_OPT_STR,
3732                 .cb     = str_numa_mpol_cb,
3733                 .off1   = offsetof(struct thread_options, numa_memnodes),
3734                 .help   = "NUMA memory policy setup",
3735                 .category = FIO_OPT_C_GENERAL,
3736                 .group  = FIO_OPT_G_INVALID,
3737         },
3738 #else
3739         {
3740                 .name   = "numa_cpu_nodes",
3741                 .lname  = "NUMA CPU Nodes",
3742                 .type   = FIO_OPT_UNSUPPORTED,
3743                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3744         },
3745         {
3746                 .name   = "numa_mem_policy",
3747                 .lname  = "NUMA Memory Policy",
3748                 .type   = FIO_OPT_UNSUPPORTED,
3749                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3750         },
3751 #endif
3752 #ifdef CONFIG_CUDA
3753         {
3754                 .name   = "gpu_dev_id",
3755                 .lname  = "GPU device ID",
3756                 .type   = FIO_OPT_INT,
3757                 .off1   = offsetof(struct thread_options, gpu_dev_id),
3758                 .help   = "Set GPU device ID for GPUDirect RDMA",
3759                 .def    = "0",
3760                 .category = FIO_OPT_C_GENERAL,
3761                 .group  = FIO_OPT_G_INVALID,
3762         },
3763 #endif
3764         {
3765                 .name   = "end_fsync",
3766                 .lname  = "End fsync",
3767                 .type   = FIO_OPT_BOOL,
3768                 .off1   = offsetof(struct thread_options, end_fsync),
3769                 .help   = "Include fsync at the end of job",
3770                 .def    = "0",
3771                 .category = FIO_OPT_C_FILE,
3772                 .group  = FIO_OPT_G_INVALID,
3773         },
3774         {
3775                 .name   = "fsync_on_close",
3776                 .lname  = "Fsync on close",
3777                 .type   = FIO_OPT_BOOL,
3778                 .off1   = offsetof(struct thread_options, fsync_on_close),
3779                 .help   = "fsync files on close",
3780                 .def    = "0",
3781                 .category = FIO_OPT_C_FILE,
3782                 .group  = FIO_OPT_G_INVALID,
3783         },
3784         {
3785                 .name   = "unlink",
3786                 .lname  = "Unlink file",
3787                 .type   = FIO_OPT_BOOL,
3788                 .off1   = offsetof(struct thread_options, unlink),
3789                 .help   = "Unlink created files after job has completed",
3790                 .def    = "0",
3791                 .category = FIO_OPT_C_FILE,
3792                 .group  = FIO_OPT_G_INVALID,
3793         },
3794         {
3795                 .name   = "unlink_each_loop",
3796                 .lname  = "Unlink file after each loop of a job",
3797                 .type   = FIO_OPT_BOOL,
3798                 .off1   = offsetof(struct thread_options, unlink_each_loop),
3799                 .help   = "Unlink created files after each loop in a job has completed",
3800                 .def    = "0",
3801                 .category = FIO_OPT_C_FILE,
3802                 .group  = FIO_OPT_G_INVALID,
3803         },
3804         {
3805                 .name   = "exitall",
3806                 .lname  = "Exit-all on terminate",
3807                 .type   = FIO_OPT_STR_SET,
3808                 .cb     = str_exitall_cb,
3809                 .help   = "Terminate all jobs when one exits",
3810                 .category = FIO_OPT_C_GENERAL,
3811                 .group  = FIO_OPT_G_PROCESS,
3812         },
3813         {
3814                 .name   = "exitall_on_error",
3815                 .lname  = "Exit-all on terminate in error",
3816                 .type   = FIO_OPT_STR_SET,
3817                 .off1   = offsetof(struct thread_options, exitall_error),
3818                 .help   = "Terminate all jobs when one exits in error",
3819                 .category = FIO_OPT_C_GENERAL,
3820                 .group  = FIO_OPT_G_PROCESS,
3821         },
3822         {
3823                 .name   = "stonewall",
3824                 .lname  = "Wait for previous",
3825                 .alias  = "wait_for_previous",
3826                 .type   = FIO_OPT_STR_SET,
3827                 .off1   = offsetof(struct thread_options, stonewall),
3828                 .help   = "Insert a hard barrier between this job and previous",
3829                 .category = FIO_OPT_C_GENERAL,
3830                 .group  = FIO_OPT_G_PROCESS,
3831         },
3832         {
3833                 .name   = "new_group",
3834                 .lname  = "New group",
3835                 .type   = FIO_OPT_STR_SET,
3836                 .off1   = offsetof(struct thread_options, new_group),
3837                 .help   = "Mark the start of a new group (for reporting)",
3838                 .category = FIO_OPT_C_GENERAL,
3839                 .group  = FIO_OPT_G_PROCESS,
3840         },
3841         {
3842                 .name   = "thread",
3843                 .lname  = "Thread",
3844                 .type   = FIO_OPT_STR_SET,
3845                 .off1   = offsetof(struct thread_options, use_thread),
3846                 .help   = "Use threads instead of processes",
3847 #ifdef CONFIG_NO_SHM
3848                 .def    = "1",
3849                 .no_warn_def = 1,
3850 #endif
3851                 .category = FIO_OPT_C_GENERAL,
3852                 .group  = FIO_OPT_G_PROCESS,
3853         },
3854         {
3855                 .name   = "per_job_logs",
3856                 .lname  = "Per Job Logs",
3857                 .type   = FIO_OPT_BOOL,
3858                 .off1   = offsetof(struct thread_options, per_job_logs),
3859                 .help   = "Include job number in generated log files or not",
3860                 .def    = "1",
3861                 .category = FIO_OPT_C_LOG,
3862                 .group  = FIO_OPT_G_INVALID,
3863         },
3864         {
3865                 .name   = "write_bw_log",
3866                 .lname  = "Write bandwidth log",
3867                 .type   = FIO_OPT_STR,
3868                 .off1   = offsetof(struct thread_options, bw_log_file),
3869                 .cb     = str_write_bw_log_cb,
3870                 .help   = "Write log of bandwidth during run",
3871                 .category = FIO_OPT_C_LOG,
3872                 .group  = FIO_OPT_G_INVALID,
3873         },
3874         {
3875                 .name   = "write_lat_log",
3876                 .lname  = "Write latency log",
3877                 .type   = FIO_OPT_STR,
3878                 .off1   = offsetof(struct thread_options, lat_log_file),
3879                 .cb     = str_write_lat_log_cb,
3880                 .help   = "Write log of latency during run",
3881                 .category = FIO_OPT_C_LOG,
3882                 .group  = FIO_OPT_G_INVALID,
3883         },
3884         {
3885                 .name   = "write_iops_log",
3886                 .lname  = "Write IOPS log",
3887                 .type   = FIO_OPT_STR,
3888                 .off1   = offsetof(struct thread_options, iops_log_file),
3889                 .cb     = str_write_iops_log_cb,
3890                 .help   = "Write log of IOPS during run",
3891                 .category = FIO_OPT_C_LOG,
3892                 .group  = FIO_OPT_G_INVALID,
3893         },
3894         {
3895                 .name   = "log_avg_msec",
3896                 .lname  = "Log averaging (msec)",
3897                 .type   = FIO_OPT_INT,
3898                 .off1   = offsetof(struct thread_options, log_avg_msec),
3899                 .help   = "Average bw/iops/lat logs over this period of time",
3900                 .def    = "0",
3901                 .category = FIO_OPT_C_LOG,
3902                 .group  = FIO_OPT_G_INVALID,
3903         },
3904         {
3905                 .name   = "log_hist_msec",
3906                 .lname  = "Log histograms (msec)",
3907                 .type   = FIO_OPT_INT,
3908                 .off1   = offsetof(struct thread_options, log_hist_msec),
3909                 .help   = "Dump completion latency histograms at frequency of this time value",
3910                 .def    = "0",
3911                 .category = FIO_OPT_C_LOG,
3912                 .group  = FIO_OPT_G_INVALID,
3913         },
3914         {
3915                 .name   = "log_hist_coarseness",
3916                 .lname  = "Histogram logs coarseness",
3917                 .type   = FIO_OPT_INT,
3918                 .off1   = offsetof(struct thread_options, log_hist_coarseness),
3919                 .help   = "Integer in range [0,6]. Higher coarseness outputs"
3920                         " fewer histogram bins per sample. The number of bins for"
3921                         " these are [1216, 608, 304, 152, 76, 38, 19] respectively.",
3922                 .def    = "0",
3923                 .category = FIO_OPT_C_LOG,
3924                 .group  = FIO_OPT_G_INVALID,
3925         },
3926         {
3927                 .name   = "write_hist_log",
3928                 .lname  = "Write latency histogram logs",
3929                 .type   = FIO_OPT_STR,
3930                 .off1   = offsetof(struct thread_options, hist_log_file),
3931                 .cb     = str_write_hist_log_cb,
3932                 .help   = "Write log of latency histograms during run",
3933                 .category = FIO_OPT_C_LOG,
3934                 .group  = FIO_OPT_G_INVALID,
3935         },
3936         {
3937                 .name   = "log_max_value",
3938                 .lname  = "Log maximum instead of average",
3939                 .type   = FIO_OPT_BOOL,
3940                 .off1   = offsetof(struct thread_options, log_max),
3941                 .help   = "Log max sample in a window instead of average",
3942                 .def    = "0",
3943                 .category = FIO_OPT_C_LOG,
3944                 .group  = FIO_OPT_G_INVALID,
3945         },
3946         {
3947                 .name   = "log_offset",
3948                 .lname  = "Log offset of IO",
3949                 .type   = FIO_OPT_BOOL,
3950                 .off1   = offsetof(struct thread_options, log_offset),
3951                 .help   = "Include offset of IO for each log entry",
3952                 .def    = "0",
3953                 .category = FIO_OPT_C_LOG,
3954                 .group  = FIO_OPT_G_INVALID,
3955         },
3956 #ifdef CONFIG_ZLIB
3957         {
3958                 .name   = "log_compression",
3959                 .lname  = "Log compression",
3960                 .type   = FIO_OPT_INT,
3961                 .off1   = offsetof(struct thread_options, log_gz),
3962                 .help   = "Log in compressed chunks of this size",
3963                 .minval = 1024ULL,
3964                 .maxval = 512 * 1024 * 1024ULL,
3965                 .category = FIO_OPT_C_LOG,
3966                 .group  = FIO_OPT_G_INVALID,
3967         },
3968 #ifdef FIO_HAVE_CPU_AFFINITY
3969         {
3970                 .name   = "log_compression_cpus",
3971                 .lname  = "Log Compression CPUs",
3972                 .type   = FIO_OPT_STR,
3973                 .cb     = str_log_cpus_allowed_cb,
3974                 .off1   = offsetof(struct thread_options, log_gz_cpumask),
3975                 .parent = "log_compression",
3976                 .help   = "Limit log compression to these CPUs",
3977                 .category = FIO_OPT_C_LOG,
3978                 .group  = FIO_OPT_G_INVALID,
3979         },
3980 #else
3981         {
3982                 .name   = "log_compression_cpus",
3983                 .lname  = "Log Compression CPUs",
3984                 .type   = FIO_OPT_UNSUPPORTED,
3985                 .help   = "Your platform does not support CPU affinities",
3986         },
3987 #endif
3988         {
3989                 .name   = "log_store_compressed",
3990                 .lname  = "Log store compressed",
3991                 .type   = FIO_OPT_BOOL,
3992                 .off1   = offsetof(struct thread_options, log_gz_store),
3993                 .help   = "Store logs in a compressed format",
3994                 .category = FIO_OPT_C_LOG,
3995                 .group  = FIO_OPT_G_INVALID,
3996         },
3997 #else
3998         {
3999                 .name   = "log_compression",
4000                 .lname  = "Log compression",
4001                 .type   = FIO_OPT_UNSUPPORTED,
4002                 .help   = "Install libz-dev(el) to get compression support",
4003         },
4004         {
4005                 .name   = "log_store_compressed",
4006                 .lname  = "Log store compressed",
4007                 .type   = FIO_OPT_UNSUPPORTED,
4008                 .help   = "Install libz-dev(el) to get compression support",
4009         },
4010 #endif
4011         {
4012                 .name = "log_unix_epoch",
4013                 .lname = "Log epoch unix",
4014                 .type = FIO_OPT_BOOL,
4015                 .off1 = offsetof(struct thread_options, log_unix_epoch),
4016                 .help = "Use Unix time in log files",
4017                 .category = FIO_OPT_C_LOG,
4018                 .group = FIO_OPT_G_INVALID,
4019         },
4020         {
4021                 .name   = "block_error_percentiles",
4022                 .lname  = "Block error percentiles",
4023                 .type   = FIO_OPT_BOOL,
4024                 .off1   = offsetof(struct thread_options, block_error_hist),
4025                 .help   = "Record trim block errors and make a histogram",
4026                 .def    = "0",
4027                 .category = FIO_OPT_C_LOG,
4028                 .group  = FIO_OPT_G_INVALID,
4029         },
4030         {
4031                 .name   = "bwavgtime",
4032                 .lname  = "Bandwidth average time",
4033                 .type   = FIO_OPT_INT,
4034                 .off1   = offsetof(struct thread_options, bw_avg_time),
4035                 .help   = "Time window over which to calculate bandwidth"
4036                           " (msec)",
4037                 .def    = "500",
4038                 .parent = "write_bw_log",
4039                 .hide   = 1,
4040                 .interval = 100,
4041                 .category = FIO_OPT_C_LOG,
4042                 .group  = FIO_OPT_G_INVALID,
4043         },
4044         {
4045                 .name   = "iopsavgtime",
4046                 .lname  = "IOPS average time",
4047                 .type   = FIO_OPT_INT,
4048                 .off1   = offsetof(struct thread_options, iops_avg_time),
4049                 .help   = "Time window over which to calculate IOPS (msec)",
4050                 .def    = "500",
4051                 .parent = "write_iops_log",
4052                 .hide   = 1,
4053                 .interval = 100,
4054                 .category = FIO_OPT_C_LOG,
4055                 .group  = FIO_OPT_G_INVALID,
4056         },
4057         {
4058                 .name   = "group_reporting",
4059                 .lname  = "Group reporting",
4060                 .type   = FIO_OPT_STR_SET,
4061                 .off1   = offsetof(struct thread_options, group_reporting),
4062                 .help   = "Do reporting on a per-group basis",
4063                 .category = FIO_OPT_C_STAT,
4064                 .group  = FIO_OPT_G_INVALID,
4065         },
4066         {
4067                 .name   = "stats",
4068                 .lname  = "Stats",
4069                 .type   = FIO_OPT_BOOL,
4070                 .off1   = offsetof(struct thread_options, stats),
4071                 .help   = "Enable collection of stats",
4072                 .def    = "1",
4073                 .category = FIO_OPT_C_STAT,
4074                 .group  = FIO_OPT_G_INVALID,
4075         },
4076         {
4077                 .name   = "zero_buffers",
4078                 .lname  = "Zero I/O buffers",
4079                 .type   = FIO_OPT_STR_SET,
4080                 .off1   = offsetof(struct thread_options, zero_buffers),
4081                 .help   = "Init IO buffers to all zeroes",
4082                 .category = FIO_OPT_C_IO,
4083                 .group  = FIO_OPT_G_IO_BUF,
4084         },
4085         {
4086                 .name   = "refill_buffers",
4087                 .lname  = "Refill I/O buffers",
4088                 .type   = FIO_OPT_STR_SET,
4089                 .off1   = offsetof(struct thread_options, refill_buffers),
4090                 .help   = "Refill IO buffers on every IO submit",
4091                 .category = FIO_OPT_C_IO,
4092                 .group  = FIO_OPT_G_IO_BUF,
4093         },
4094         {
4095                 .name   = "scramble_buffers",
4096                 .lname  = "Scramble I/O buffers",
4097                 .type   = FIO_OPT_BOOL,
4098                 .off1   = offsetof(struct thread_options, scramble_buffers),
4099                 .help   = "Slightly scramble buffers on every IO submit",
4100                 .def    = "1",
4101                 .category = FIO_OPT_C_IO,
4102                 .group  = FIO_OPT_G_IO_BUF,
4103         },
4104         {
4105                 .name   = "buffer_pattern",
4106                 .lname  = "Buffer pattern",
4107                 .type   = FIO_OPT_STR,
4108                 .cb     = str_buffer_pattern_cb,
4109                 .off1   = offsetof(struct thread_options, buffer_pattern),
4110                 .help   = "Fill pattern for IO buffers",
4111                 .category = FIO_OPT_C_IO,
4112                 .group  = FIO_OPT_G_IO_BUF,
4113         },
4114         {
4115                 .name   = "buffer_compress_percentage",
4116                 .lname  = "Buffer compression percentage",
4117                 .type   = FIO_OPT_INT,
4118                 .cb     = str_buffer_compress_cb,
4119                 .off1   = offsetof(struct thread_options, compress_percentage),
4120                 .maxval = 100,
4121                 .minval = 0,
4122                 .help   = "How compressible the buffer is (approximately)",
4123                 .interval = 5,
4124                 .category = FIO_OPT_C_IO,
4125                 .group  = FIO_OPT_G_IO_BUF,
4126         },
4127         {
4128                 .name   = "buffer_compress_chunk",
4129                 .lname  = "Buffer compression chunk size",
4130                 .type   = FIO_OPT_INT,
4131                 .off1   = offsetof(struct thread_options, compress_chunk),
4132                 .parent = "buffer_compress_percentage",
4133                 .hide   = 1,
4134                 .help   = "Size of compressible region in buffer",
4135                 .def    = "512",
4136                 .interval = 256,
4137                 .category = FIO_OPT_C_IO,
4138                 .group  = FIO_OPT_G_IO_BUF,
4139         },
4140         {
4141                 .name   = "dedupe_percentage",
4142                 .lname  = "Dedupe percentage",
4143                 .type   = FIO_OPT_INT,
4144                 .cb     = str_dedupe_cb,
4145                 .off1   = offsetof(struct thread_options, dedupe_percentage),
4146                 .maxval = 100,
4147                 .minval = 0,
4148                 .help   = "Percentage of buffers that are dedupable",
4149                 .interval = 1,
4150                 .category = FIO_OPT_C_IO,
4151                 .group  = FIO_OPT_G_IO_BUF,
4152         },
4153         {
4154                 .name   = "clat_percentiles",
4155                 .lname  = "Completion latency percentiles",
4156                 .type   = FIO_OPT_BOOL,
4157                 .off1   = offsetof(struct thread_options, clat_percentiles),
4158                 .help   = "Enable the reporting of completion latency percentiles",
4159                 .def    = "1",
4160                 .inverse = "lat_percentiles",
4161                 .category = FIO_OPT_C_STAT,
4162                 .group  = FIO_OPT_G_INVALID,
4163         },
4164         {
4165                 .name   = "lat_percentiles",
4166                 .lname  = "IO latency percentiles",
4167                 .type   = FIO_OPT_BOOL,
4168                 .off1   = offsetof(struct thread_options, lat_percentiles),
4169                 .help   = "Enable the reporting of IO latency percentiles",
4170                 .def    = "0",
4171                 .inverse = "clat_percentiles",
4172                 .category = FIO_OPT_C_STAT,
4173                 .group  = FIO_OPT_G_INVALID,
4174         },
4175         {
4176                 .name   = "percentile_list",
4177                 .lname  = "Percentile list",
4178                 .type   = FIO_OPT_FLOAT_LIST,
4179                 .off1   = offsetof(struct thread_options, percentile_list),
4180                 .off2   = offsetof(struct thread_options, percentile_precision),
4181                 .help   = "Specify a custom list of percentiles to report for "
4182                           "completion latency and block errors",
4183                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
4184                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
4185                 .minfp  = 0.0,
4186                 .maxfp  = 100.0,
4187                 .category = FIO_OPT_C_STAT,
4188                 .group  = FIO_OPT_G_INVALID,
4189         },
4190         {
4191                 .name   = "significant_figures",
4192                 .lname  = "Significant figures",
4193                 .type   = FIO_OPT_INT,
4194                 .off1   = offsetof(struct thread_options, sig_figs),
4195                 .maxval = 10,
4196                 .minval = 1,
4197                 .help   = "Significant figures for output-format set to normal",
4198                 .def    = "4",
4199                 .interval = 1,
4200                 .category = FIO_OPT_C_STAT,
4201                 .group  = FIO_OPT_G_INVALID,
4202         },
4203
4204 #ifdef FIO_HAVE_DISK_UTIL
4205         {
4206                 .name   = "disk_util",
4207                 .lname  = "Disk utilization",
4208                 .type   = FIO_OPT_BOOL,
4209                 .off1   = offsetof(struct thread_options, do_disk_util),
4210                 .help   = "Log disk utilization statistics",
4211                 .def    = "1",
4212                 .category = FIO_OPT_C_STAT,
4213                 .group  = FIO_OPT_G_INVALID,
4214         },
4215 #else
4216         {
4217                 .name   = "disk_util",
4218                 .lname  = "Disk utilization",
4219                 .type   = FIO_OPT_UNSUPPORTED,
4220                 .help   = "Your platform does not support disk utilization",
4221         },
4222 #endif
4223         {
4224                 .name   = "gtod_reduce",
4225                 .lname  = "Reduce gettimeofday() calls",
4226                 .type   = FIO_OPT_BOOL,
4227                 .help   = "Greatly reduce number of gettimeofday() calls",
4228                 .cb     = str_gtod_reduce_cb,
4229                 .def    = "0",
4230                 .hide_on_set = 1,
4231                 .category = FIO_OPT_C_STAT,
4232                 .group  = FIO_OPT_G_INVALID,
4233         },
4234         {
4235                 .name   = "disable_lat",
4236                 .lname  = "Disable all latency stats",
4237                 .type   = FIO_OPT_BOOL,
4238                 .off1   = offsetof(struct thread_options, disable_lat),
4239                 .help   = "Disable latency numbers",
4240                 .parent = "gtod_reduce",
4241                 .hide   = 1,
4242                 .def    = "0",
4243                 .category = FIO_OPT_C_STAT,
4244                 .group  = FIO_OPT_G_INVALID,
4245         },
4246         {
4247                 .name   = "disable_clat",
4248                 .lname  = "Disable completion latency stats",
4249                 .type   = FIO_OPT_BOOL,
4250                 .off1   = offsetof(struct thread_options, disable_clat),
4251                 .help   = "Disable completion latency numbers",
4252                 .parent = "gtod_reduce",
4253                 .hide   = 1,
4254                 .def    = "0",
4255                 .category = FIO_OPT_C_STAT,
4256                 .group  = FIO_OPT_G_INVALID,
4257         },
4258         {
4259                 .name   = "disable_slat",
4260                 .lname  = "Disable submission latency stats",
4261                 .type   = FIO_OPT_BOOL,
4262                 .off1   = offsetof(struct thread_options, disable_slat),
4263                 .help   = "Disable submission latency numbers",
4264                 .parent = "gtod_reduce",
4265                 .hide   = 1,
4266                 .def    = "0",
4267                 .category = FIO_OPT_C_STAT,
4268                 .group  = FIO_OPT_G_INVALID,
4269         },
4270         {
4271                 .name   = "disable_bw_measurement",
4272                 .alias  = "disable_bw",
4273                 .lname  = "Disable bandwidth stats",
4274                 .type   = FIO_OPT_BOOL,
4275                 .off1   = offsetof(struct thread_options, disable_bw),
4276                 .help   = "Disable bandwidth logging",
4277                 .parent = "gtod_reduce",
4278                 .hide   = 1,
4279                 .def    = "0",
4280                 .category = FIO_OPT_C_STAT,
4281                 .group  = FIO_OPT_G_INVALID,
4282         },
4283         {
4284                 .name   = "gtod_cpu",
4285                 .lname  = "Dedicated gettimeofday() CPU",
4286                 .type   = FIO_OPT_INT,
4287                 .off1   = offsetof(struct thread_options, gtod_cpu),
4288                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
4289                 .verify = gtod_cpu_verify,
4290                 .category = FIO_OPT_C_GENERAL,
4291                 .group  = FIO_OPT_G_CLOCK,
4292         },
4293         {
4294                 .name   = "unified_rw_reporting",
4295                 .lname  = "Unified RW Reporting",
4296                 .type   = FIO_OPT_BOOL,
4297                 .off1   = offsetof(struct thread_options, unified_rw_rep),
4298                 .help   = "Unify reporting across data direction",
4299                 .def    = "0",
4300                 .category = FIO_OPT_C_GENERAL,
4301                 .group  = FIO_OPT_G_INVALID,
4302         },
4303         {
4304                 .name   = "continue_on_error",
4305                 .lname  = "Continue on error",
4306                 .type   = FIO_OPT_STR,
4307                 .off1   = offsetof(struct thread_options, continue_on_error),
4308                 .help   = "Continue on non-fatal errors during IO",
4309                 .def    = "none",
4310                 .category = FIO_OPT_C_GENERAL,
4311                 .group  = FIO_OPT_G_ERR,
4312                 .posval = {
4313                           { .ival = "none",
4314                             .oval = ERROR_TYPE_NONE,
4315                             .help = "Exit when an error is encountered",
4316                           },
4317                           { .ival = "read",
4318                             .oval = ERROR_TYPE_READ,
4319                             .help = "Continue on read errors only",
4320                           },
4321                           { .ival = "write",
4322                             .oval = ERROR_TYPE_WRITE,
4323                             .help = "Continue on write errors only",
4324                           },
4325                           { .ival = "io",
4326                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
4327                             .help = "Continue on any IO errors",
4328                           },
4329                           { .ival = "verify",
4330                             .oval = ERROR_TYPE_VERIFY,
4331                             .help = "Continue on verify errors only",
4332                           },
4333                           { .ival = "all",
4334                             .oval = ERROR_TYPE_ANY,
4335                             .help = "Continue on all io and verify errors",
4336                           },
4337                           { .ival = "0",
4338                             .oval = ERROR_TYPE_NONE,
4339                             .help = "Alias for 'none'",
4340                           },
4341                           { .ival = "1",
4342                             .oval = ERROR_TYPE_ANY,
4343                             .help = "Alias for 'all'",
4344                           },
4345                 },
4346         },
4347         {
4348                 .name   = "ignore_error",
4349                 .lname  = "Ignore Error",
4350                 .type   = FIO_OPT_STR,
4351                 .cb     = str_ignore_error_cb,
4352                 .off1   = offsetof(struct thread_options, ignore_error_nr),
4353                 .help   = "Set a specific list of errors to ignore",
4354                 .parent = "rw",
4355                 .category = FIO_OPT_C_GENERAL,
4356                 .group  = FIO_OPT_G_ERR,
4357         },
4358         {
4359                 .name   = "error_dump",
4360                 .lname  = "Error Dump",
4361                 .type   = FIO_OPT_BOOL,
4362                 .off1   = offsetof(struct thread_options, error_dump),
4363                 .def    = "0",
4364                 .help   = "Dump info on each error",
4365                 .category = FIO_OPT_C_GENERAL,
4366                 .group  = FIO_OPT_G_ERR,
4367         },
4368         {
4369                 .name   = "profile",
4370                 .lname  = "Profile",
4371                 .type   = FIO_OPT_STR_STORE,
4372                 .off1   = offsetof(struct thread_options, profile),
4373                 .help   = "Select a specific builtin performance test",
4374                 .category = FIO_OPT_C_PROFILE,
4375                 .group  = FIO_OPT_G_INVALID,
4376         },
4377         {
4378                 .name   = "cgroup",
4379                 .lname  = "Cgroup",
4380                 .type   = FIO_OPT_STR_STORE,
4381                 .off1   = offsetof(struct thread_options, cgroup),
4382                 .help   = "Add job to cgroup of this name",
4383                 .category = FIO_OPT_C_GENERAL,
4384                 .group  = FIO_OPT_G_CGROUP,
4385         },
4386         {
4387                 .name   = "cgroup_nodelete",
4388                 .lname  = "Cgroup no-delete",
4389                 .type   = FIO_OPT_BOOL,
4390                 .off1   = offsetof(struct thread_options, cgroup_nodelete),
4391                 .help   = "Do not delete cgroups after job completion",
4392                 .def    = "0",
4393                 .parent = "cgroup",
4394                 .category = FIO_OPT_C_GENERAL,
4395                 .group  = FIO_OPT_G_CGROUP,
4396         },
4397         {
4398                 .name   = "cgroup_weight",
4399                 .lname  = "Cgroup weight",
4400                 .type   = FIO_OPT_INT,
4401                 .off1   = offsetof(struct thread_options, cgroup_weight),
4402                 .help   = "Use given weight for cgroup",
4403                 .minval = 100,
4404                 .maxval = 1000,
4405                 .parent = "cgroup",
4406                 .category = FIO_OPT_C_GENERAL,
4407                 .group  = FIO_OPT_G_CGROUP,
4408         },
4409         {
4410                 .name   = "uid",
4411                 .lname  = "User ID",
4412                 .type   = FIO_OPT_INT,
4413                 .off1   = offsetof(struct thread_options, uid),
4414                 .help   = "Run job with this user ID",
4415                 .category = FIO_OPT_C_GENERAL,
4416                 .group  = FIO_OPT_G_CRED,
4417         },
4418         {
4419                 .name   = "gid",
4420                 .lname  = "Group ID",
4421                 .type   = FIO_OPT_INT,
4422                 .off1   = offsetof(struct thread_options, gid),
4423                 .help   = "Run job with this group ID",
4424                 .category = FIO_OPT_C_GENERAL,
4425                 .group  = FIO_OPT_G_CRED,
4426         },
4427         {
4428                 .name   = "kb_base",
4429                 .lname  = "KB Base",
4430                 .type   = FIO_OPT_INT,
4431                 .off1   = offsetof(struct thread_options, kb_base),
4432                 .prio   = 1,
4433                 .def    = "1024",
4434                 .posval = {
4435                           { .ival = "1024",
4436                             .oval = 1024,
4437                             .help = "Inputs invert IEC and SI prefixes (for compatibility); outputs prefer binary",
4438                           },
4439                           { .ival = "1000",
4440                             .oval = 1000,
4441                             .help = "Inputs use IEC and SI prefixes; outputs prefer SI",
4442                           },
4443                 },
4444                 .help   = "Unit prefix interpretation for quantities of data (IEC and SI)",
4445                 .category = FIO_OPT_C_GENERAL,
4446                 .group  = FIO_OPT_G_INVALID,
4447         },
4448         {
4449                 .name   = "unit_base",
4450                 .lname  = "Unit for quantities of data (Bits or Bytes)",
4451                 .type   = FIO_OPT_INT,
4452                 .off1   = offsetof(struct thread_options, unit_base),
4453                 .prio   = 1,
4454                 .posval = {
4455                           { .ival = "0",
4456                             .oval = N2S_NONE,
4457                             .help = "Auto-detect",
4458                           },
4459                           { .ival = "8",
4460                             .oval = N2S_BYTEPERSEC,
4461                             .help = "Normal (byte based)",
4462                           },
4463                           { .ival = "1",
4464                             .oval = N2S_BITPERSEC,
4465                             .help = "Bit based",
4466                           },
4467                 },
4468                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
4469                 .category = FIO_OPT_C_GENERAL,
4470                 .group  = FIO_OPT_G_INVALID,
4471         },
4472         {
4473                 .name   = "hugepage-size",
4474                 .lname  = "Hugepage size",
4475                 .type   = FIO_OPT_INT,
4476                 .off1   = offsetof(struct thread_options, hugepage_size),
4477                 .help   = "When using hugepages, specify size of each page",
4478                 .def    = __fio_stringify(FIO_HUGE_PAGE),
4479                 .interval = 1024 * 1024,
4480                 .category = FIO_OPT_C_GENERAL,
4481                 .group  = FIO_OPT_G_INVALID,
4482         },
4483         {
4484                 .name   = "flow_id",
4485                 .lname  = "I/O flow ID",
4486                 .type   = FIO_OPT_INT,
4487                 .off1   = offsetof(struct thread_options, flow_id),
4488                 .help   = "The flow index ID to use",
4489                 .def    = "0",
4490                 .category = FIO_OPT_C_IO,
4491                 .group  = FIO_OPT_G_IO_FLOW,
4492         },
4493         {
4494                 .name   = "flow",
4495                 .lname  = "I/O flow weight",
4496                 .type   = FIO_OPT_INT,
4497                 .off1   = offsetof(struct thread_options, flow),
4498                 .help   = "Weight for flow control of this job",
4499                 .parent = "flow_id",
4500                 .hide   = 1,
4501                 .def    = "0",
4502                 .category = FIO_OPT_C_IO,
4503                 .group  = FIO_OPT_G_IO_FLOW,
4504         },
4505         {
4506                 .name   = "flow_watermark",
4507                 .lname  = "I/O flow watermark",
4508                 .type   = FIO_OPT_INT,
4509                 .off1   = offsetof(struct thread_options, flow_watermark),
4510                 .help   = "High watermark for flow control. This option"
4511                         " should be set to the same value for all threads"
4512                         " with non-zero flow.",
4513                 .parent = "flow_id",
4514                 .hide   = 1,
4515                 .def    = "1024",
4516                 .category = FIO_OPT_C_IO,
4517                 .group  = FIO_OPT_G_IO_FLOW,
4518         },
4519         {
4520                 .name   = "flow_sleep",
4521                 .lname  = "I/O flow sleep",
4522                 .type   = FIO_OPT_INT,
4523                 .off1   = offsetof(struct thread_options, flow_sleep),
4524                 .help   = "How many microseconds to sleep after being held"
4525                         " back by the flow control mechanism",
4526                 .parent = "flow_id",
4527                 .hide   = 1,
4528                 .def    = "0",
4529                 .category = FIO_OPT_C_IO,
4530                 .group  = FIO_OPT_G_IO_FLOW,
4531         },
4532         {
4533                 .name   = "steadystate",
4534                 .lname  = "Steady state threshold",
4535                 .alias  = "ss",
4536                 .type   = FIO_OPT_STR,
4537                 .off1   = offsetof(struct thread_options, ss_state),
4538                 .cb     = str_steadystate_cb,
4539                 .help   = "Define the criterion and limit to judge when a job has reached steady state",
4540                 .def    = "iops_slope:0.01%",
4541                 .posval = {
4542                           { .ival = "iops",
4543                             .oval = FIO_SS_IOPS,
4544                             .help = "maximum mean deviation of IOPS measurements",
4545                           },
4546                           { .ival = "iops_slope",
4547                             .oval = FIO_SS_IOPS_SLOPE,
4548                             .help = "slope calculated from IOPS measurements",
4549                           },
4550                           { .ival = "bw",
4551                             .oval = FIO_SS_BW,
4552                             .help = "maximum mean deviation of bandwidth measurements",
4553                           },
4554                           {
4555                             .ival = "bw_slope",
4556                             .oval = FIO_SS_BW_SLOPE,
4557                             .help = "slope calculated from bandwidth measurements",
4558                           },
4559                 },
4560                 .category = FIO_OPT_C_GENERAL,
4561                 .group  = FIO_OPT_G_RUNTIME,
4562         },
4563         {
4564                 .name   = "steadystate_duration",
4565                 .lname  = "Steady state duration",
4566                 .alias  = "ss_dur",
4567                 .parent = "steadystate",
4568                 .type   = FIO_OPT_STR_VAL_TIME,
4569                 .off1   = offsetof(struct thread_options, ss_dur),
4570                 .help   = "Stop workload upon attaining steady state for specified duration",
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   = "steadystate_ramp_time",
4579                 .lname  = "Steady state ramp time",
4580                 .alias  = "ss_ramp",
4581                 .parent = "steadystate",
4582                 .type   = FIO_OPT_STR_VAL_TIME,
4583                 .off1   = offsetof(struct thread_options, ss_ramp_time),
4584                 .help   = "Delay before initiation of data collection for steady state job termination testing",
4585                 .def    = "0",
4586                 .is_seconds = 1,
4587                 .is_time = 1,
4588                 .category = FIO_OPT_C_GENERAL,
4589                 .group  = FIO_OPT_G_RUNTIME,
4590         },
4591         {
4592                 .name = NULL,
4593         },
4594 };
4595
4596 static void add_to_lopt(struct option *lopt, struct fio_option *o,
4597                         const char *name, int val)
4598 {
4599         lopt->name = (char *) name;
4600         lopt->val = val;
4601         if (o->type == FIO_OPT_STR_SET)
4602                 lopt->has_arg = optional_argument;
4603         else
4604                 lopt->has_arg = required_argument;
4605 }
4606
4607 static void options_to_lopts(struct fio_option *opts,
4608                               struct option *long_options,
4609                               int i, int option_type)
4610 {
4611         struct fio_option *o = &opts[0];
4612         while (o->name) {
4613                 add_to_lopt(&long_options[i], o, o->name, option_type);
4614                 if (o->alias) {
4615                         i++;
4616                         add_to_lopt(&long_options[i], o, o->alias, option_type);
4617                 }
4618
4619                 i++;
4620                 o++;
4621                 assert(i < FIO_NR_OPTIONS);
4622         }
4623 }
4624
4625 void fio_options_set_ioengine_opts(struct option *long_options,
4626                                    struct thread_data *td)
4627 {
4628         unsigned int i;
4629
4630         i = 0;
4631         while (long_options[i].name) {
4632                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
4633                         memset(&long_options[i], 0, sizeof(*long_options));
4634                         break;
4635                 }
4636                 i++;
4637         }
4638
4639         /*
4640          * Just clear out the prior ioengine options.
4641          */
4642         if (!td || !td->eo)
4643                 return;
4644
4645         options_to_lopts(td->io_ops->options, long_options, i,
4646                          FIO_GETOPT_IOENGINE);
4647 }
4648
4649 void fio_options_dup_and_init(struct option *long_options)
4650 {
4651         unsigned int i;
4652
4653         options_init(fio_options);
4654
4655         i = 0;
4656         while (long_options[i].name)
4657                 i++;
4658
4659         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
4660 }
4661
4662 struct fio_keyword {
4663         const char *word;
4664         const char *desc;
4665         char *replace;
4666 };
4667
4668 static struct fio_keyword fio_keywords[] = {
4669         {
4670                 .word   = "$pagesize",
4671                 .desc   = "Page size in the system",
4672         },
4673         {
4674                 .word   = "$mb_memory",
4675                 .desc   = "Megabytes of memory online",
4676         },
4677         {
4678                 .word   = "$ncpus",
4679                 .desc   = "Number of CPUs online in the system",
4680         },
4681         {
4682                 .word   = NULL,
4683         },
4684 };
4685
4686 void fio_keywords_exit(void)
4687 {
4688         struct fio_keyword *kw;
4689
4690         kw = &fio_keywords[0];
4691         while (kw->word) {
4692                 free(kw->replace);
4693                 kw->replace = NULL;
4694                 kw++;
4695         }
4696 }
4697
4698 void fio_keywords_init(void)
4699 {
4700         unsigned long long mb_memory;
4701         char buf[128];
4702         long l;
4703
4704         sprintf(buf, "%lu", (unsigned long) page_size);
4705         fio_keywords[0].replace = strdup(buf);
4706
4707         mb_memory = os_phys_mem() / (1024 * 1024);
4708         sprintf(buf, "%llu", mb_memory);
4709         fio_keywords[1].replace = strdup(buf);
4710
4711         l = cpus_online();
4712         sprintf(buf, "%lu", l);
4713         fio_keywords[2].replace = strdup(buf);
4714 }
4715
4716 #define BC_APP          "bc"
4717
4718 static char *bc_calc(char *str)
4719 {
4720         char buf[128], *tmp;
4721         FILE *f;
4722         int ret;
4723
4724         /*
4725          * No math, just return string
4726          */
4727         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
4728              !strchr(str, '/')) || strchr(str, '\''))
4729                 return str;
4730
4731         /*
4732          * Split option from value, we only need to calculate the value
4733          */
4734         tmp = strchr(str, '=');
4735         if (!tmp)
4736                 return str;
4737
4738         tmp++;
4739
4740         /*
4741          * Prevent buffer overflows; such a case isn't reasonable anyway
4742          */
4743         if (strlen(str) >= 128 || strlen(tmp) > 100)
4744                 return str;
4745
4746         sprintf(buf, "which %s > /dev/null", BC_APP);
4747         if (system(buf)) {
4748                 log_err("fio: bc is needed for performing math\n");
4749                 return NULL;
4750         }
4751
4752         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
4753         f = popen(buf, "r");
4754         if (!f)
4755                 return NULL;
4756
4757         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
4758         if (ret <= 0) {
4759                 pclose(f);
4760                 return NULL;
4761         }
4762
4763         pclose(f);
4764         buf[(tmp - str) + ret - 1] = '\0';
4765         memcpy(buf, str, tmp - str);
4766         free(str);
4767         return strdup(buf);
4768 }
4769
4770 /*
4771  * Return a copy of the input string with substrings of the form ${VARNAME}
4772  * substituted with the value of the environment variable VARNAME.  The
4773  * substitution always occurs, even if VARNAME is empty or the corresponding
4774  * environment variable undefined.
4775  */
4776 char *fio_option_dup_subs(const char *opt)
4777 {
4778         char out[OPT_LEN_MAX+1];
4779         char in[OPT_LEN_MAX+1];
4780         char *outptr = out;
4781         char *inptr = in;
4782         char *ch1, *ch2, *env;
4783         ssize_t nchr = OPT_LEN_MAX;
4784         size_t envlen;
4785
4786         if (strlen(opt) + 1 > OPT_LEN_MAX) {
4787                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
4788                 return NULL;
4789         }
4790
4791         in[OPT_LEN_MAX] = '\0';
4792         strncpy(in, opt, OPT_LEN_MAX);
4793
4794         while (*inptr && nchr > 0) {
4795                 if (inptr[0] == '$' && inptr[1] == '{') {
4796                         ch2 = strchr(inptr, '}');
4797                         if (ch2 && inptr+1 < ch2) {
4798                                 ch1 = inptr+2;
4799                                 inptr = ch2+1;
4800                                 *ch2 = '\0';
4801
4802                                 env = getenv(ch1);
4803                                 if (env) {
4804                                         envlen = strlen(env);
4805                                         if (envlen <= nchr) {
4806                                                 memcpy(outptr, env, envlen);
4807                                                 outptr += envlen;
4808                                                 nchr -= envlen;
4809                                         }
4810                                 }
4811
4812                                 continue;
4813                         }
4814                 }
4815
4816                 *outptr++ = *inptr++;
4817                 --nchr;
4818         }
4819
4820         *outptr = '\0';
4821         return strdup(out);
4822 }
4823
4824 /*
4825  * Look for reserved variable names and replace them with real values
4826  */
4827 static char *fio_keyword_replace(char *opt)
4828 {
4829         char *s;
4830         int i;
4831         int docalc = 0;
4832
4833         for (i = 0; fio_keywords[i].word != NULL; i++) {
4834                 struct fio_keyword *kw = &fio_keywords[i];
4835
4836                 while ((s = strstr(opt, kw->word)) != NULL) {
4837                         char *new = malloc(strlen(opt) + 1);
4838                         char *o_org = opt;
4839                         int olen = s - opt;
4840                         int len;
4841
4842                         /*
4843                          * Copy part of the string before the keyword and
4844                          * sprintf() the replacement after it.
4845                          */
4846                         memcpy(new, opt, olen);
4847                         len = sprintf(new + olen, "%s", kw->replace);
4848
4849                         /*
4850                          * If there's more in the original string, copy that
4851                          * in too
4852                          */
4853                         opt += strlen(kw->word) + olen;
4854                         if (strlen(opt))
4855                                 memcpy(new + olen + len, opt, opt - o_org - 1);
4856
4857                         /*
4858                          * replace opt and free the old opt
4859                          */
4860                         opt = new;
4861                         free(o_org);
4862
4863                         docalc = 1;
4864                 }
4865         }
4866
4867         /*
4868          * Check for potential math and invoke bc, if possible
4869          */
4870         if (docalc)
4871                 opt = bc_calc(opt);
4872
4873         return opt;
4874 }
4875
4876 static char **dup_and_sub_options(char **opts, int num_opts)
4877 {
4878         int i;
4879         char **opts_copy = malloc(num_opts * sizeof(*opts));
4880         for (i = 0; i < num_opts; i++) {
4881                 opts_copy[i] = fio_option_dup_subs(opts[i]);
4882                 if (!opts_copy[i])
4883                         continue;
4884                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
4885         }
4886         return opts_copy;
4887 }
4888
4889 static void show_closest_option(const char *opt)
4890 {
4891         int best_option, best_distance;
4892         int i, distance;
4893         char *name;
4894
4895         if (!strlen(opt))
4896                 return;
4897
4898         name = strdup(opt);
4899         i = 0;
4900         while (name[i] != '\0' && name[i] != '=')
4901                 i++;
4902         name[i] = '\0';
4903
4904         best_option = -1;
4905         best_distance = INT_MAX;
4906         i = 0;
4907         while (fio_options[i].name) {
4908                 distance = string_distance(name, fio_options[i].name);
4909                 if (distance < best_distance) {
4910                         best_distance = distance;
4911                         best_option = i;
4912                 }
4913                 i++;
4914         }
4915
4916         if (best_option != -1 && string_distance_ok(name, best_distance) &&
4917             fio_options[best_option].type != FIO_OPT_UNSUPPORTED)
4918                 log_err("Did you mean %s?\n", fio_options[best_option].name);
4919
4920         free(name);
4921 }
4922
4923 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
4924 {
4925         int i, ret, unknown;
4926         char **opts_copy;
4927
4928         sort_options(opts, fio_options, num_opts);
4929         opts_copy = dup_and_sub_options(opts, num_opts);
4930
4931         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
4932                 const struct fio_option *o;
4933                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
4934                                                 &o, &td->o, &td->opt_list);
4935
4936                 if (!newret && o)
4937                         fio_option_mark_set(&td->o, o);
4938
4939                 if (opts_copy[i]) {
4940                         if (newret && !o) {
4941                                 unknown++;
4942                                 continue;
4943                         }
4944                         free(opts_copy[i]);
4945                         opts_copy[i] = NULL;
4946                 }
4947
4948                 ret |= newret;
4949         }
4950
4951         if (unknown) {
4952                 ret |= ioengine_load(td);
4953                 if (td->eo) {
4954                         sort_options(opts_copy, td->io_ops->options, num_opts);
4955                         opts = opts_copy;
4956                 }
4957                 for (i = 0; i < num_opts; i++) {
4958                         const struct fio_option *o = NULL;
4959                         int newret = 1;
4960
4961                         if (!opts_copy[i])
4962                                 continue;
4963
4964                         if (td->eo)
4965                                 newret = parse_option(opts_copy[i], opts[i],
4966                                                       td->io_ops->options, &o,
4967                                                       td->eo, &td->opt_list);
4968
4969                         ret |= newret;
4970                         if (!o) {
4971                                 log_err("Bad option <%s>\n", opts[i]);
4972                                 show_closest_option(opts[i]);
4973                         }
4974                         free(opts_copy[i]);
4975                         opts_copy[i] = NULL;
4976                 }
4977         }
4978
4979         free(opts_copy);
4980         return ret;
4981 }
4982
4983 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
4984 {
4985         int ret;
4986
4987         ret = parse_cmd_option(opt, val, fio_options, &td->o, &td->opt_list);
4988         if (!ret) {
4989                 const struct fio_option *o;
4990
4991                 o = find_option_c(fio_options, opt);
4992                 if (o)
4993                         fio_option_mark_set(&td->o, o);
4994         }
4995
4996         return ret;
4997 }
4998
4999 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
5000                                 char *val)
5001 {
5002         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
5003                                         &td->opt_list);
5004 }
5005
5006 void fio_fill_default_options(struct thread_data *td)
5007 {
5008         td->o.magic = OPT_MAGIC;
5009         fill_default_options(&td->o, fio_options);
5010 }
5011
5012 int fio_show_option_help(const char *opt)
5013 {
5014         return show_cmd_help(fio_options, opt);
5015 }
5016
5017 /*
5018  * dupe FIO_OPT_STR_STORE options
5019  */
5020 void fio_options_mem_dupe(struct thread_data *td)
5021 {
5022         options_mem_dupe(fio_options, &td->o);
5023
5024         if (td->eo && td->io_ops) {
5025                 void *oldeo = td->eo;
5026
5027                 td->eo = malloc(td->io_ops->option_struct_size);
5028                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
5029                 options_mem_dupe(td->io_ops->options, td->eo);
5030         }
5031 }
5032
5033 unsigned int fio_get_kb_base(void *data)
5034 {
5035         struct thread_data *td = cb_data_to_td(data);
5036         struct thread_options *o = &td->o;
5037         unsigned int kb_base = 0;
5038
5039         /*
5040          * This is a hack... For private options, *data is not holding
5041          * a pointer to the thread_options, but to private data. This means
5042          * we can't safely dereference it, but magic is first so mem wise
5043          * it is valid. But this also means that if the job first sets
5044          * kb_base and expects that to be honored by private options,
5045          * it will be disappointed. We will return the global default
5046          * for this.
5047          */
5048         if (o && o->magic == OPT_MAGIC)
5049                 kb_base = o->kb_base;
5050         if (!kb_base)
5051                 kb_base = 1024;
5052
5053         return kb_base;
5054 }
5055
5056 int add_option(const struct fio_option *o)
5057 {
5058         struct fio_option *__o;
5059         int opt_index = 0;
5060
5061         __o = fio_options;
5062         while (__o->name) {
5063                 opt_index++;
5064                 __o++;
5065         }
5066
5067         if (opt_index + 1 == FIO_MAX_OPTS) {
5068                 log_err("fio: FIO_MAX_OPTS is too small\n");
5069                 return 1;
5070         }
5071
5072         memcpy(&fio_options[opt_index], o, sizeof(*o));
5073         fio_options[opt_index + 1].name = NULL;
5074         return 0;
5075 }
5076
5077 void invalidate_profile_options(const char *prof_name)
5078 {
5079         struct fio_option *o;
5080
5081         o = fio_options;
5082         while (o->name) {
5083                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
5084                         o->type = FIO_OPT_INVALID;
5085                         o->prof_name = NULL;
5086                 }
5087                 o++;
5088         }
5089 }
5090
5091 void add_opt_posval(const char *optname, const char *ival, const char *help)
5092 {
5093         struct fio_option *o;
5094         unsigned int i;
5095
5096         o = find_option(fio_options, optname);
5097         if (!o)
5098                 return;
5099
5100         for (i = 0; i < PARSE_MAX_VP; i++) {
5101                 if (o->posval[i].ival)
5102                         continue;
5103
5104                 o->posval[i].ival = ival;
5105                 o->posval[i].help = help;
5106                 break;
5107         }
5108 }
5109
5110 void del_opt_posval(const char *optname, const char *ival)
5111 {
5112         struct fio_option *o;
5113         unsigned int i;
5114
5115         o = find_option(fio_options, optname);
5116         if (!o)
5117                 return;
5118
5119         for (i = 0; i < PARSE_MAX_VP; i++) {
5120                 if (!o->posval[i].ival)
5121                         continue;
5122                 if (strcmp(o->posval[i].ival, ival))
5123                         continue;
5124
5125                 o->posval[i].ival = NULL;
5126                 o->posval[i].help = NULL;
5127         }
5128 }
5129
5130 void fio_options_free(struct thread_data *td)
5131 {
5132         options_free(fio_options, &td->o);
5133         if (td->eo && td->io_ops && td->io_ops->options) {
5134                 options_free(td->io_ops->options, td->eo);
5135                 free(td->eo);
5136                 td->eo = NULL;
5137         }
5138 }
5139
5140 struct fio_option *fio_option_find(const char *name)
5141 {
5142         return find_option(fio_options, name);
5143 }
5144
5145 static struct fio_option *find_next_opt(struct fio_option *from,
5146                                         unsigned int off1)
5147 {
5148         struct fio_option *opt;
5149
5150         if (!from)
5151                 from = &fio_options[0];
5152         else
5153                 from++;
5154
5155         opt = NULL;
5156         do {
5157                 if (off1 == from->off1) {
5158                         opt = from;
5159                         break;
5160                 }
5161                 from++;
5162         } while (from->name);
5163
5164         return opt;
5165 }
5166
5167 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
5168 {
5169         unsigned int opt_off, index, offset;
5170
5171         opt_off = opt - &fio_options[0];
5172         index = opt_off / (8 * sizeof(uint64_t));
5173         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5174         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
5175 }
5176
5177 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
5178 {
5179         struct fio_option *opt, *next;
5180
5181         next = NULL;
5182         while ((opt = find_next_opt(next, off1)) != NULL) {
5183                 if (opt_is_set(o, opt))
5184                         return true;
5185
5186                 next = opt;
5187         }
5188
5189         return false;
5190 }
5191
5192 void fio_option_mark_set(struct thread_options *o, const struct fio_option *opt)
5193 {
5194         unsigned int opt_off, index, offset;
5195
5196         opt_off = opt - &fio_options[0];
5197         index = opt_off / (8 * sizeof(uint64_t));
5198         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5199         o->set_options[index] |= (uint64_t)1 << offset;
5200 }