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 char *get_next_str(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 int get_max_str_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_str(&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_str_idx(input);
1228         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1229                 fname = get_next_str(&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 char* get_name_by_idx(char *input, int index)
1244 {
1245         unsigned int cur_idx;
1246         char *fname, *str, *p;
1247
1248         p = str = strdup(input);
1249
1250         index %= get_max_str_idx(input);
1251         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1252                 fname = get_next_str(&str);
1253
1254         fname = strdup(fname);
1255         free(p);
1256
1257         return fname;
1258 }
1259
1260 static int str_filename_cb(void *data, const char *input)
1261 {
1262         struct thread_data *td = cb_data_to_td(data);
1263         char *fname, *str, *p;
1264
1265         p = str = strdup(input);
1266
1267         strip_blank_front(&str);
1268         strip_blank_end(str);
1269
1270         /*
1271          * Ignore what we may already have from nrfiles option.
1272          */
1273         if (!td->files_index)
1274                 td->o.nr_files = 0;
1275
1276         while ((fname = get_next_str(&str)) != NULL) {
1277                 if (!strlen(fname))
1278                         break;
1279                 add_file(td, fname, 0, 1);
1280         }
1281
1282         free(p);
1283         return 0;
1284 }
1285
1286 static int str_directory_cb(void *data, const char fio_unused *unused)
1287 {
1288         struct thread_data *td = cb_data_to_td(data);
1289         struct stat sb;
1290         char *dirname, *str, *p;
1291         int ret = 0;
1292
1293         if (parse_dryrun())
1294                 return 0;
1295
1296         p = str = strdup(td->o.directory);
1297         while ((dirname = get_next_str(&str)) != NULL) {
1298                 if (lstat(dirname, &sb) < 0) {
1299                         ret = errno;
1300
1301                         log_err("fio: %s is not a directory\n", dirname);
1302                         td_verror(td, ret, "lstat");
1303                         goto out;
1304                 }
1305                 if (!S_ISDIR(sb.st_mode)) {
1306                         log_err("fio: %s is not a directory\n", dirname);
1307                         ret = 1;
1308                         goto out;
1309                 }
1310         }
1311
1312 out:
1313         free(p);
1314         return ret;
1315 }
1316
1317 static int str_opendir_cb(void *data, const char fio_unused *str)
1318 {
1319         struct thread_data *td = cb_data_to_td(data);
1320
1321         if (parse_dryrun())
1322                 return 0;
1323
1324         if (!td->files_index)
1325                 td->o.nr_files = 0;
1326
1327         return add_dir_files(td, td->o.opendir);
1328 }
1329
1330 static int str_buffer_pattern_cb(void *data, const char *input)
1331 {
1332         struct thread_data *td = cb_data_to_td(data);
1333         int ret;
1334
1335         /* FIXME: for now buffer pattern does not support formats */
1336         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
1337                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
1338         if (ret < 0)
1339                 return 1;
1340
1341         assert(ret != 0);
1342         td->o.buffer_pattern_bytes = ret;
1343
1344         /*
1345          * If this job is doing any reading or has compression set,
1346          * ensure that we refill buffers for writes or we could be
1347          * invalidating the pattern through reads.
1348          */
1349         if (!td->o.compress_percentage && !td_read(td))
1350                 td->o.refill_buffers = 0;
1351         else
1352                 td->o.refill_buffers = 1;
1353
1354         td->o.scramble_buffers = 0;
1355         td->o.zero_buffers = 0;
1356
1357         return 0;
1358 }
1359
1360 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1361 {
1362         struct thread_data *td = cb_data_to_td(data);
1363
1364         td->flags |= TD_F_COMPRESS;
1365         td->o.compress_percentage = *il;
1366         return 0;
1367 }
1368
1369 static int str_dedupe_cb(void *data, unsigned long long *il)
1370 {
1371         struct thread_data *td = cb_data_to_td(data);
1372
1373         td->flags |= TD_F_COMPRESS;
1374         td->o.dedupe_percentage = *il;
1375         td->o.refill_buffers = 1;
1376         return 0;
1377 }
1378
1379 static int str_verify_pattern_cb(void *data, const char *input)
1380 {
1381         struct thread_data *td = cb_data_to_td(data);
1382         int ret;
1383
1384         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
1385         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
1386                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
1387                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
1388         if (ret < 0)
1389                 return 1;
1390
1391         assert(ret != 0);
1392         td->o.verify_pattern_bytes = ret;
1393         /*
1394          * VERIFY_* could already be set
1395          */
1396         if (!fio_option_is_set(&td->o, verify))
1397                 td->o.verify = VERIFY_PATTERN;
1398
1399         return 0;
1400 }
1401
1402 static int str_gtod_reduce_cb(void *data, int *il)
1403 {
1404         struct thread_data *td = cb_data_to_td(data);
1405         int val = *il;
1406
1407         td->o.disable_lat = !!val;
1408         td->o.disable_clat = !!val;
1409         td->o.disable_slat = !!val;
1410         td->o.disable_bw = !!val;
1411         td->o.clat_percentiles = !val;
1412         if (val)
1413                 td->ts_cache_mask = 63;
1414
1415         return 0;
1416 }
1417
1418 static int str_offset_cb(void *data, unsigned long long *__val)
1419 {
1420         struct thread_data *td = cb_data_to_td(data);
1421         unsigned long long v = *__val;
1422
1423         if (parse_is_percent(v)) {
1424                 td->o.start_offset = 0;
1425                 td->o.start_offset_percent = -1ULL - v;
1426                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1427                                         td->o.start_offset_percent);
1428         } else
1429                 td->o.start_offset = v;
1430
1431         return 0;
1432 }
1433
1434 static int str_size_cb(void *data, unsigned long long *__val)
1435 {
1436         struct thread_data *td = cb_data_to_td(data);
1437         unsigned long long v = *__val;
1438
1439         if (parse_is_percent(v)) {
1440                 td->o.size = 0;
1441                 td->o.size_percent = -1ULL - v;
1442                 dprint(FD_PARSE, "SET size_percent %d\n",
1443                                         td->o.size_percent);
1444         } else
1445                 td->o.size = v;
1446
1447         return 0;
1448 }
1449
1450 static int str_write_bw_log_cb(void *data, const char *str)
1451 {
1452         struct thread_data *td = cb_data_to_td(data);
1453
1454         if (str)
1455                 td->o.bw_log_file = strdup(str);
1456
1457         td->o.write_bw_log = 1;
1458         return 0;
1459 }
1460
1461 static int str_write_lat_log_cb(void *data, const char *str)
1462 {
1463         struct thread_data *td = cb_data_to_td(data);
1464
1465         if (str)
1466                 td->o.lat_log_file = strdup(str);
1467
1468         td->o.write_lat_log = 1;
1469         return 0;
1470 }
1471
1472 static int str_write_iops_log_cb(void *data, const char *str)
1473 {
1474         struct thread_data *td = cb_data_to_td(data);
1475
1476         if (str)
1477                 td->o.iops_log_file = strdup(str);
1478
1479         td->o.write_iops_log = 1;
1480         return 0;
1481 }
1482
1483 static int str_write_hist_log_cb(void *data, const char *str)
1484 {
1485         struct thread_data *td = cb_data_to_td(data);
1486
1487         if (str)
1488                 td->o.hist_log_file = strdup(str);
1489
1490         td->o.write_hist_log = 1;
1491         return 0;
1492 }
1493
1494 /*
1495  * str is supposed to be a substring of the strdup'd original string,
1496  * and is valid only if it's a regular file path.
1497  * This function keeps the pointer to the path as needed later.
1498  *
1499  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1500  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1501  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1502  */
1503 static int str_ioengine_external_cb(void *data, const char *str)
1504 {
1505         struct thread_data *td = cb_data_to_td(data);
1506         struct stat sb;
1507         char *p;
1508
1509         if (!str) {
1510                 log_err("fio: null external ioengine path\n");
1511                 return 1;
1512         }
1513
1514         p = (char *)str; /* str is mutable */
1515         strip_blank_front(&p);
1516         strip_blank_end(p);
1517
1518         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1519                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1520                 return 1;
1521         }
1522
1523         td->o.ioengine_so_path = p;
1524         return 0;
1525 }
1526
1527 static int rw_verify(const struct fio_option *o, void *data)
1528 {
1529         struct thread_data *td = cb_data_to_td(data);
1530
1531         if (read_only && (td_write(td) || td_trim(td))) {
1532                 log_err("fio: job <%s> has write or trim bit set, but"
1533                         " fio is in read-only mode\n", td->o.name);
1534                 return 1;
1535         }
1536
1537         return 0;
1538 }
1539
1540 static int gtod_cpu_verify(const struct fio_option *o, void *data)
1541 {
1542 #ifndef FIO_HAVE_CPU_AFFINITY
1543         struct thread_data *td = cb_data_to_td(data);
1544
1545         if (td->o.gtod_cpu) {
1546                 log_err("fio: platform must support CPU affinity for"
1547                         "gettimeofday() offloading\n");
1548                 return 1;
1549         }
1550 #endif
1551
1552         return 0;
1553 }
1554
1555 /*
1556  * Map of job/command line options
1557  */
1558 struct fio_option fio_options[FIO_MAX_OPTS] = {
1559         {
1560                 .name   = "description",
1561                 .lname  = "Description of job",
1562                 .type   = FIO_OPT_STR_STORE,
1563                 .off1   = offsetof(struct thread_options, description),
1564                 .help   = "Text job description",
1565                 .category = FIO_OPT_C_GENERAL,
1566                 .group  = FIO_OPT_G_DESC,
1567         },
1568         {
1569                 .name   = "name",
1570                 .lname  = "Job name",
1571                 .type   = FIO_OPT_STR_STORE,
1572                 .off1   = offsetof(struct thread_options, name),
1573                 .help   = "Name of this job",
1574                 .category = FIO_OPT_C_GENERAL,
1575                 .group  = FIO_OPT_G_DESC,
1576         },
1577         {
1578                 .name   = "wait_for",
1579                 .lname  = "Waitee name",
1580                 .type   = FIO_OPT_STR_STORE,
1581                 .off1   = offsetof(struct thread_options, wait_for),
1582                 .help   = "Name of the job this one wants to wait for before starting",
1583                 .category = FIO_OPT_C_GENERAL,
1584                 .group  = FIO_OPT_G_DESC,
1585         },
1586         {
1587                 .name   = "filename",
1588                 .lname  = "Filename(s)",
1589                 .type   = FIO_OPT_STR_STORE,
1590                 .off1   = offsetof(struct thread_options, filename),
1591                 .cb     = str_filename_cb,
1592                 .prio   = -1, /* must come after "directory" */
1593                 .help   = "File(s) to use for the workload",
1594                 .category = FIO_OPT_C_FILE,
1595                 .group  = FIO_OPT_G_FILENAME,
1596         },
1597         {
1598                 .name   = "directory",
1599                 .lname  = "Directory",
1600                 .type   = FIO_OPT_STR_STORE,
1601                 .off1   = offsetof(struct thread_options, directory),
1602                 .cb     = str_directory_cb,
1603                 .help   = "Directory to store files in",
1604                 .category = FIO_OPT_C_FILE,
1605                 .group  = FIO_OPT_G_FILENAME,
1606         },
1607         {
1608                 .name   = "filename_format",
1609                 .lname  = "Filename Format",
1610                 .type   = FIO_OPT_STR_STORE,
1611                 .off1   = offsetof(struct thread_options, filename_format),
1612                 .prio   = -1, /* must come after "directory" */
1613                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1614                 .def    = "$jobname.$jobnum.$filenum",
1615                 .category = FIO_OPT_C_FILE,
1616                 .group  = FIO_OPT_G_FILENAME,
1617         },
1618         {
1619                 .name   = "unique_filename",
1620                 .lname  = "Unique Filename",
1621                 .type   = FIO_OPT_BOOL,
1622                 .off1   = offsetof(struct thread_options, unique_filename),
1623                 .help   = "For network clients, prefix file with source IP",
1624                 .def    = "1",
1625                 .category = FIO_OPT_C_FILE,
1626                 .group  = FIO_OPT_G_FILENAME,
1627         },
1628         {
1629                 .name   = "lockfile",
1630                 .lname  = "Lockfile",
1631                 .type   = FIO_OPT_STR,
1632                 .off1   = offsetof(struct thread_options, file_lock_mode),
1633                 .help   = "Lock file when doing IO to it",
1634                 .prio   = 1,
1635                 .parent = "filename",
1636                 .hide   = 0,
1637                 .def    = "none",
1638                 .category = FIO_OPT_C_FILE,
1639                 .group  = FIO_OPT_G_FILENAME,
1640                 .posval = {
1641                           { .ival = "none",
1642                             .oval = FILE_LOCK_NONE,
1643                             .help = "No file locking",
1644                           },
1645                           { .ival = "exclusive",
1646                             .oval = FILE_LOCK_EXCLUSIVE,
1647                             .help = "Exclusive file lock",
1648                           },
1649                           {
1650                             .ival = "readwrite",
1651                             .oval = FILE_LOCK_READWRITE,
1652                             .help = "Read vs write lock",
1653                           },
1654                 },
1655         },
1656         {
1657                 .name   = "opendir",
1658                 .lname  = "Open directory",
1659                 .type   = FIO_OPT_STR_STORE,
1660                 .off1   = offsetof(struct thread_options, opendir),
1661                 .cb     = str_opendir_cb,
1662                 .help   = "Recursively add files from this directory and down",
1663                 .category = FIO_OPT_C_FILE,
1664                 .group  = FIO_OPT_G_FILENAME,
1665         },
1666         {
1667                 .name   = "rw",
1668                 .lname  = "Read/write",
1669                 .alias  = "readwrite",
1670                 .type   = FIO_OPT_STR,
1671                 .cb     = str_rw_cb,
1672                 .off1   = offsetof(struct thread_options, td_ddir),
1673                 .help   = "IO direction",
1674                 .def    = "read",
1675                 .verify = rw_verify,
1676                 .category = FIO_OPT_C_IO,
1677                 .group  = FIO_OPT_G_IO_BASIC,
1678                 .posval = {
1679                           { .ival = "read",
1680                             .oval = TD_DDIR_READ,
1681                             .help = "Sequential read",
1682                           },
1683                           { .ival = "write",
1684                             .oval = TD_DDIR_WRITE,
1685                             .help = "Sequential write",
1686                           },
1687                           { .ival = "trim",
1688                             .oval = TD_DDIR_TRIM,
1689                             .help = "Sequential trim",
1690                           },
1691                           { .ival = "randread",
1692                             .oval = TD_DDIR_RANDREAD,
1693                             .help = "Random read",
1694                           },
1695                           { .ival = "randwrite",
1696                             .oval = TD_DDIR_RANDWRITE,
1697                             .help = "Random write",
1698                           },
1699                           { .ival = "randtrim",
1700                             .oval = TD_DDIR_RANDTRIM,
1701                             .help = "Random trim",
1702                           },
1703                           { .ival = "rw",
1704                             .oval = TD_DDIR_RW,
1705                             .help = "Sequential read and write mix",
1706                           },
1707                           { .ival = "readwrite",
1708                             .oval = TD_DDIR_RW,
1709                             .help = "Sequential read and write mix",
1710                           },
1711                           { .ival = "randrw",
1712                             .oval = TD_DDIR_RANDRW,
1713                             .help = "Random read and write mix"
1714                           },
1715                           { .ival = "trimwrite",
1716                             .oval = TD_DDIR_TRIMWRITE,
1717                             .help = "Trim and write mix, trims preceding writes"
1718                           },
1719                 },
1720         },
1721         {
1722                 .name   = "rw_sequencer",
1723                 .lname  = "RW Sequencer",
1724                 .type   = FIO_OPT_STR,
1725                 .off1   = offsetof(struct thread_options, rw_seq),
1726                 .help   = "IO offset generator modifier",
1727                 .def    = "sequential",
1728                 .category = FIO_OPT_C_IO,
1729                 .group  = FIO_OPT_G_IO_BASIC,
1730                 .posval = {
1731                           { .ival = "sequential",
1732                             .oval = RW_SEQ_SEQ,
1733                             .help = "Generate sequential offsets",
1734                           },
1735                           { .ival = "identical",
1736                             .oval = RW_SEQ_IDENT,
1737                             .help = "Generate identical offsets",
1738                           },
1739                 },
1740         },
1741
1742         {
1743                 .name   = "ioengine",
1744                 .lname  = "IO Engine",
1745                 .type   = FIO_OPT_STR_STORE,
1746                 .off1   = offsetof(struct thread_options, ioengine),
1747                 .help   = "IO engine to use",
1748                 .def    = FIO_PREFERRED_ENGINE,
1749                 .category = FIO_OPT_C_IO,
1750                 .group  = FIO_OPT_G_IO_BASIC,
1751                 .posval = {
1752                           { .ival = "sync",
1753                             .help = "Use read/write",
1754                           },
1755                           { .ival = "psync",
1756                             .help = "Use pread/pwrite",
1757                           },
1758                           { .ival = "vsync",
1759                             .help = "Use readv/writev",
1760                           },
1761 #ifdef CONFIG_PWRITEV
1762                           { .ival = "pvsync",
1763                             .help = "Use preadv/pwritev",
1764                           },
1765 #endif
1766 #ifdef FIO_HAVE_PWRITEV2
1767                           { .ival = "pvsync2",
1768                             .help = "Use preadv2/pwritev2",
1769                           },
1770 #endif
1771 #ifdef CONFIG_LIBAIO
1772                           { .ival = "libaio",
1773                             .help = "Linux native asynchronous IO",
1774                           },
1775 #endif
1776 #ifdef CONFIG_POSIXAIO
1777                           { .ival = "posixaio",
1778                             .help = "POSIX asynchronous IO",
1779                           },
1780 #endif
1781 #ifdef CONFIG_SOLARISAIO
1782                           { .ival = "solarisaio",
1783                             .help = "Solaris native asynchronous IO",
1784                           },
1785 #endif
1786 #ifdef CONFIG_WINDOWSAIO
1787                           { .ival = "windowsaio",
1788                             .help = "Windows native asynchronous IO"
1789                           },
1790 #endif
1791 #ifdef CONFIG_RBD
1792                           { .ival = "rbd",
1793                             .help = "Rados Block Device asynchronous IO"
1794                           },
1795 #endif
1796                           { .ival = "mmap",
1797                             .help = "Memory mapped IO"
1798                           },
1799 #ifdef CONFIG_LINUX_SPLICE
1800                           { .ival = "splice",
1801                             .help = "splice/vmsplice based IO",
1802                           },
1803                           { .ival = "netsplice",
1804                             .help = "splice/vmsplice to/from the network",
1805                           },
1806 #endif
1807 #ifdef FIO_HAVE_SGIO
1808                           { .ival = "sg",
1809                             .help = "SCSI generic v3 IO",
1810                           },
1811 #endif
1812                           { .ival = "null",
1813                             .help = "Testing engine (no data transfer)",
1814                           },
1815                           { .ival = "net",
1816                             .help = "Network IO",
1817                           },
1818                           { .ival = "cpuio",
1819                             .help = "CPU cycle burner engine",
1820                           },
1821 #ifdef CONFIG_GUASI
1822                           { .ival = "guasi",
1823                             .help = "GUASI IO engine",
1824                           },
1825 #endif
1826 #ifdef CONFIG_RDMA
1827                           { .ival = "rdma",
1828                             .help = "RDMA IO engine",
1829                           },
1830 #endif
1831 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1832                           { .ival = "e4defrag",
1833                             .help = "ext4 defrag engine",
1834                           },
1835 #endif
1836 #ifdef CONFIG_LINUX_FALLOCATE
1837                           { .ival = "falloc",
1838                             .help = "fallocate() file based engine",
1839                           },
1840 #endif
1841 #ifdef CONFIG_GFAPI
1842                           { .ival = "gfapi",
1843                             .help = "Glusterfs libgfapi(sync) based engine"
1844                           },
1845                           { .ival = "gfapi_async",
1846                             .help = "Glusterfs libgfapi(async) based engine"
1847                           },
1848 #endif
1849 #ifdef CONFIG_LIBHDFS
1850                           { .ival = "libhdfs",
1851                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1852                           },
1853 #endif
1854 #ifdef CONFIG_PMEMBLK
1855                           { .ival = "pmemblk",
1856                             .help = "PMDK libpmemblk based IO engine",
1857                           },
1858
1859 #endif
1860 #ifdef CONFIG_IME
1861                           { .ival = "ime_psync",
1862                             .help = "DDN's IME synchronous IO engine",
1863                           },
1864                           { .ival = "ime_psyncv",
1865                             .help = "DDN's IME synchronous IO engine using iovecs",
1866                           },
1867                           { .ival = "ime_aio",
1868                             .help = "DDN's IME asynchronous IO engine",
1869                           },
1870 #endif
1871 #ifdef CONFIG_LINUX_DEVDAX
1872                           { .ival = "dev-dax",
1873                             .help = "DAX Device based IO engine",
1874                           },
1875 #endif
1876                           {
1877                             .ival = "filecreate",
1878                             .help = "File creation engine",
1879                           },
1880                           { .ival = "external",
1881                             .help = "Load external engine (append name)",
1882                             .cb = str_ioengine_external_cb,
1883                           },
1884 #ifdef CONFIG_LIBPMEM
1885                           { .ival = "libpmem",
1886                             .help = "PMDK libpmem based IO engine",
1887                           },
1888 #endif
1889 #ifdef CONFIG_HTTP
1890                           { .ival = "http",
1891                             .help = "HTTP (WebDAV/S3) IO engine",
1892                           },
1893 #endif
1894                 },
1895         },
1896         {
1897                 .name   = "iodepth",
1898                 .lname  = "IO Depth",
1899                 .type   = FIO_OPT_INT,
1900                 .off1   = offsetof(struct thread_options, iodepth),
1901                 .help   = "Number of IO buffers to keep in flight",
1902                 .minval = 1,
1903                 .interval = 1,
1904                 .def    = "1",
1905                 .category = FIO_OPT_C_IO,
1906                 .group  = FIO_OPT_G_IO_BASIC,
1907         },
1908         {
1909                 .name   = "iodepth_batch",
1910                 .lname  = "IO Depth batch",
1911                 .alias  = "iodepth_batch_submit",
1912                 .type   = FIO_OPT_INT,
1913                 .off1   = offsetof(struct thread_options, iodepth_batch),
1914                 .help   = "Number of IO buffers to submit in one go",
1915                 .parent = "iodepth",
1916                 .hide   = 1,
1917                 .interval = 1,
1918                 .def    = "1",
1919                 .category = FIO_OPT_C_IO,
1920                 .group  = FIO_OPT_G_IO_BASIC,
1921         },
1922         {
1923                 .name   = "iodepth_batch_complete_min",
1924                 .lname  = "Min IO depth batch complete",
1925                 .alias  = "iodepth_batch_complete",
1926                 .type   = FIO_OPT_INT,
1927                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
1928                 .help   = "Min number of IO buffers to retrieve in one go",
1929                 .parent = "iodepth",
1930                 .hide   = 1,
1931                 .minval = 0,
1932                 .interval = 1,
1933                 .def    = "1",
1934                 .category = FIO_OPT_C_IO,
1935                 .group  = FIO_OPT_G_IO_BASIC,
1936         },
1937         {
1938                 .name   = "iodepth_batch_complete_max",
1939                 .lname  = "Max IO depth batch complete",
1940                 .type   = FIO_OPT_INT,
1941                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
1942                 .help   = "Max number of IO buffers to retrieve in one go",
1943                 .parent = "iodepth",
1944                 .hide   = 1,
1945                 .minval = 0,
1946                 .interval = 1,
1947                 .category = FIO_OPT_C_IO,
1948                 .group  = FIO_OPT_G_IO_BASIC,
1949         },
1950         {
1951                 .name   = "iodepth_low",
1952                 .lname  = "IO Depth batch low",
1953                 .type   = FIO_OPT_INT,
1954                 .off1   = offsetof(struct thread_options, iodepth_low),
1955                 .help   = "Low water mark for queuing depth",
1956                 .parent = "iodepth",
1957                 .hide   = 1,
1958                 .interval = 1,
1959                 .category = FIO_OPT_C_IO,
1960                 .group  = FIO_OPT_G_IO_BASIC,
1961         },
1962         {
1963                 .name   = "serialize_overlap",
1964                 .lname  = "Serialize overlap",
1965                 .off1   = offsetof(struct thread_options, serialize_overlap),
1966                 .type   = FIO_OPT_BOOL,
1967                 .help   = "Wait for in-flight IOs that collide to complete",
1968                 .parent = "iodepth",
1969                 .def    = "0",
1970                 .category = FIO_OPT_C_IO,
1971                 .group  = FIO_OPT_G_IO_BASIC,
1972         },
1973         {
1974                 .name   = "io_submit_mode",
1975                 .lname  = "IO submit mode",
1976                 .type   = FIO_OPT_STR,
1977                 .off1   = offsetof(struct thread_options, io_submit_mode),
1978                 .help   = "How IO submissions and completions are done",
1979                 .def    = "inline",
1980                 .category = FIO_OPT_C_IO,
1981                 .group  = FIO_OPT_G_IO_BASIC,
1982                 .posval = {
1983                           { .ival = "inline",
1984                             .oval = IO_MODE_INLINE,
1985                             .help = "Submit and complete IO inline",
1986                           },
1987                           { .ival = "offload",
1988                             .oval = IO_MODE_OFFLOAD,
1989                             .help = "Offload submit and complete to threads",
1990                           },
1991                 },
1992         },
1993         {
1994                 .name   = "size",
1995                 .lname  = "Size",
1996                 .type   = FIO_OPT_STR_VAL,
1997                 .cb     = str_size_cb,
1998                 .off1   = offsetof(struct thread_options, size),
1999                 .help   = "Total size of device or files",
2000                 .interval = 1024 * 1024,
2001                 .category = FIO_OPT_C_IO,
2002                 .group  = FIO_OPT_G_INVALID,
2003         },
2004         {
2005                 .name   = "io_size",
2006                 .alias  = "io_limit",
2007                 .lname  = "IO Size",
2008                 .type   = FIO_OPT_STR_VAL,
2009                 .off1   = offsetof(struct thread_options, io_size),
2010                 .help   = "Total size of I/O to be performed",
2011                 .interval = 1024 * 1024,
2012                 .category = FIO_OPT_C_IO,
2013                 .group  = FIO_OPT_G_INVALID,
2014         },
2015         {
2016                 .name   = "fill_device",
2017                 .lname  = "Fill device",
2018                 .alias  = "fill_fs",
2019                 .type   = FIO_OPT_BOOL,
2020                 .off1   = offsetof(struct thread_options, fill_device),
2021                 .help   = "Write until an ENOSPC error occurs",
2022                 .def    = "0",
2023                 .category = FIO_OPT_C_FILE,
2024                 .group  = FIO_OPT_G_INVALID,
2025         },
2026         {
2027                 .name   = "filesize",
2028                 .lname  = "File size",
2029                 .type   = FIO_OPT_STR_VAL,
2030                 .off1   = offsetof(struct thread_options, file_size_low),
2031                 .off2   = offsetof(struct thread_options, file_size_high),
2032                 .minval = 1,
2033                 .help   = "Size of individual files",
2034                 .interval = 1024 * 1024,
2035                 .category = FIO_OPT_C_FILE,
2036                 .group  = FIO_OPT_G_INVALID,
2037         },
2038         {
2039                 .name   = "file_append",
2040                 .lname  = "File append",
2041                 .type   = FIO_OPT_BOOL,
2042                 .off1   = offsetof(struct thread_options, file_append),
2043                 .help   = "IO will start at the end of the file(s)",
2044                 .def    = "0",
2045                 .category = FIO_OPT_C_FILE,
2046                 .group  = FIO_OPT_G_INVALID,
2047         },
2048         {
2049                 .name   = "offset",
2050                 .lname  = "IO offset",
2051                 .alias  = "fileoffset",
2052                 .type   = FIO_OPT_STR_VAL,
2053                 .cb     = str_offset_cb,
2054                 .off1   = offsetof(struct thread_options, start_offset),
2055                 .help   = "Start IO from this offset",
2056                 .def    = "0",
2057                 .interval = 1024 * 1024,
2058                 .category = FIO_OPT_C_IO,
2059                 .group  = FIO_OPT_G_INVALID,
2060         },
2061         {
2062                 .name   = "offset_align",
2063                 .lname  = "IO offset alignment",
2064                 .type   = FIO_OPT_INT,
2065                 .off1   = offsetof(struct thread_options, start_offset_align),
2066                 .help   = "Start IO from this offset alignment",
2067                 .def    = "0",
2068                 .interval = 512,
2069                 .category = FIO_OPT_C_IO,
2070                 .group  = FIO_OPT_G_INVALID,
2071         },
2072         {
2073                 .name   = "offset_increment",
2074                 .lname  = "IO offset increment",
2075                 .type   = FIO_OPT_STR_VAL,
2076                 .off1   = offsetof(struct thread_options, offset_increment),
2077                 .help   = "What is the increment from one offset to the next",
2078                 .parent = "offset",
2079                 .hide   = 1,
2080                 .def    = "0",
2081                 .interval = 1024 * 1024,
2082                 .category = FIO_OPT_C_IO,
2083                 .group  = FIO_OPT_G_INVALID,
2084         },
2085         {
2086                 .name   = "number_ios",
2087                 .lname  = "Number of IOs to perform",
2088                 .type   = FIO_OPT_STR_VAL,
2089                 .off1   = offsetof(struct thread_options, number_ios),
2090                 .help   = "Force job completion after this number of IOs",
2091                 .def    = "0",
2092                 .category = FIO_OPT_C_IO,
2093                 .group  = FIO_OPT_G_INVALID,
2094         },
2095         {
2096                 .name   = "bs",
2097                 .lname  = "Block size",
2098                 .alias  = "blocksize",
2099                 .type   = FIO_OPT_ULL,
2100                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2101                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2102                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2103                 .minval = 1,
2104                 .help   = "Block size unit",
2105                 .def    = "4096",
2106                 .parent = "rw",
2107                 .hide   = 1,
2108                 .interval = 512,
2109                 .category = FIO_OPT_C_IO,
2110                 .group  = FIO_OPT_G_INVALID,
2111         },
2112         {
2113                 .name   = "ba",
2114                 .lname  = "Block size align",
2115                 .alias  = "blockalign",
2116                 .type   = FIO_OPT_ULL,
2117                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2118                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2119                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2120                 .minval = 1,
2121                 .help   = "IO block offset alignment",
2122                 .parent = "rw",
2123                 .hide   = 1,
2124                 .interval = 512,
2125                 .category = FIO_OPT_C_IO,
2126                 .group  = FIO_OPT_G_INVALID,
2127         },
2128         {
2129                 .name   = "bsrange",
2130                 .lname  = "Block size range",
2131                 .alias  = "blocksize_range",
2132                 .type   = FIO_OPT_RANGE,
2133                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2134                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2135                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2136                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2137                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2138                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2139                 .minval = 1,
2140                 .help   = "Set block size range (in more detail than bs)",
2141                 .parent = "rw",
2142                 .hide   = 1,
2143                 .interval = 4096,
2144                 .category = FIO_OPT_C_IO,
2145                 .group  = FIO_OPT_G_INVALID,
2146         },
2147         {
2148                 .name   = "bssplit",
2149                 .lname  = "Block size split",
2150                 .type   = FIO_OPT_STR_ULL,
2151                 .cb     = str_bssplit_cb,
2152                 .off1   = offsetof(struct thread_options, bssplit),
2153                 .help   = "Set a specific mix of block sizes",
2154                 .parent = "rw",
2155                 .hide   = 1,
2156                 .category = FIO_OPT_C_IO,
2157                 .group  = FIO_OPT_G_INVALID,
2158         },
2159         {
2160                 .name   = "bs_unaligned",
2161                 .lname  = "Block size unaligned",
2162                 .alias  = "blocksize_unaligned",
2163                 .type   = FIO_OPT_STR_SET,
2164                 .off1   = offsetof(struct thread_options, bs_unaligned),
2165                 .help   = "Don't sector align IO buffer sizes",
2166                 .parent = "rw",
2167                 .hide   = 1,
2168                 .category = FIO_OPT_C_IO,
2169                 .group  = FIO_OPT_G_INVALID,
2170         },
2171         {
2172                 .name   = "bs_is_seq_rand",
2173                 .lname  = "Block size division is seq/random (not read/write)",
2174                 .type   = FIO_OPT_BOOL,
2175                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2176                 .help   = "Consider any blocksize setting to be sequential,random",
2177                 .def    = "0",
2178                 .parent = "blocksize",
2179                 .category = FIO_OPT_C_IO,
2180                 .group  = FIO_OPT_G_INVALID,
2181         },
2182         {
2183                 .name   = "randrepeat",
2184                 .lname  = "Random repeatable",
2185                 .type   = FIO_OPT_BOOL,
2186                 .off1   = offsetof(struct thread_options, rand_repeatable),
2187                 .help   = "Use repeatable random IO pattern",
2188                 .def    = "1",
2189                 .parent = "rw",
2190                 .hide   = 1,
2191                 .category = FIO_OPT_C_IO,
2192                 .group  = FIO_OPT_G_RANDOM,
2193         },
2194         {
2195                 .name   = "randseed",
2196                 .lname  = "The random generator seed",
2197                 .type   = FIO_OPT_STR_VAL,
2198                 .off1   = offsetof(struct thread_options, rand_seed),
2199                 .help   = "Set the random generator seed value",
2200                 .def    = "0x89",
2201                 .parent = "rw",
2202                 .category = FIO_OPT_C_IO,
2203                 .group  = FIO_OPT_G_RANDOM,
2204         },
2205         {
2206                 .name   = "use_os_rand",
2207                 .lname  = "Use OS random",
2208                 .type   = FIO_OPT_DEPRECATED,
2209                 .off1   = offsetof(struct thread_options, dep_use_os_rand),
2210                 .category = FIO_OPT_C_IO,
2211                 .group  = FIO_OPT_G_RANDOM,
2212         },
2213         {
2214                 .name   = "norandommap",
2215                 .lname  = "No randommap",
2216                 .type   = FIO_OPT_STR_SET,
2217                 .off1   = offsetof(struct thread_options, norandommap),
2218                 .help   = "Accept potential duplicate random blocks",
2219                 .parent = "rw",
2220                 .hide   = 1,
2221                 .hide_on_set = 1,
2222                 .category = FIO_OPT_C_IO,
2223                 .group  = FIO_OPT_G_RANDOM,
2224         },
2225         {
2226                 .name   = "softrandommap",
2227                 .lname  = "Soft randommap",
2228                 .type   = FIO_OPT_BOOL,
2229                 .off1   = offsetof(struct thread_options, softrandommap),
2230                 .help   = "Set norandommap if randommap allocation fails",
2231                 .parent = "norandommap",
2232                 .hide   = 1,
2233                 .def    = "0",
2234                 .category = FIO_OPT_C_IO,
2235                 .group  = FIO_OPT_G_RANDOM,
2236         },
2237         {
2238                 .name   = "random_generator",
2239                 .lname  = "Random Generator",
2240                 .type   = FIO_OPT_STR,
2241                 .off1   = offsetof(struct thread_options, random_generator),
2242                 .help   = "Type of random number generator to use",
2243                 .def    = "tausworthe",
2244                 .posval = {
2245                           { .ival = "tausworthe",
2246                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2247                             .help = "Strong Tausworthe generator",
2248                           },
2249                           { .ival = "lfsr",
2250                             .oval = FIO_RAND_GEN_LFSR,
2251                             .help = "Variable length LFSR",
2252                           },
2253                           {
2254                             .ival = "tausworthe64",
2255                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2256                             .help = "64-bit Tausworthe variant",
2257                           },
2258                 },
2259                 .category = FIO_OPT_C_IO,
2260                 .group  = FIO_OPT_G_RANDOM,
2261         },
2262         {
2263                 .name   = "random_distribution",
2264                 .lname  = "Random Distribution",
2265                 .type   = FIO_OPT_STR,
2266                 .off1   = offsetof(struct thread_options, random_distribution),
2267                 .cb     = str_random_distribution_cb,
2268                 .help   = "Random offset distribution generator",
2269                 .def    = "random",
2270                 .posval = {
2271                           { .ival = "random",
2272                             .oval = FIO_RAND_DIST_RANDOM,
2273                             .help = "Completely random",
2274                           },
2275                           { .ival = "zipf",
2276                             .oval = FIO_RAND_DIST_ZIPF,
2277                             .help = "Zipf distribution",
2278                           },
2279                           { .ival = "pareto",
2280                             .oval = FIO_RAND_DIST_PARETO,
2281                             .help = "Pareto distribution",
2282                           },
2283                           { .ival = "normal",
2284                             .oval = FIO_RAND_DIST_GAUSS,
2285                             .help = "Normal (Gaussian) distribution",
2286                           },
2287                           { .ival = "zoned",
2288                             .oval = FIO_RAND_DIST_ZONED,
2289                             .help = "Zoned random distribution",
2290                           },
2291                           { .ival = "zoned_abs",
2292                             .oval = FIO_RAND_DIST_ZONED_ABS,
2293                             .help = "Zoned absolute random distribution",
2294                           },
2295                 },
2296                 .category = FIO_OPT_C_IO,
2297                 .group  = FIO_OPT_G_RANDOM,
2298         },
2299         {
2300                 .name   = "percentage_random",
2301                 .lname  = "Percentage Random",
2302                 .type   = FIO_OPT_INT,
2303                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2304                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2305                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2306                 .maxval = 100,
2307                 .help   = "Percentage of seq/random mix that should be random",
2308                 .def    = "100,100,100",
2309                 .interval = 5,
2310                 .inverse = "percentage_sequential",
2311                 .category = FIO_OPT_C_IO,
2312                 .group  = FIO_OPT_G_RANDOM,
2313         },
2314         {
2315                 .name   = "percentage_sequential",
2316                 .lname  = "Percentage Sequential",
2317                 .type   = FIO_OPT_DEPRECATED,
2318                 .category = FIO_OPT_C_IO,
2319                 .group  = FIO_OPT_G_RANDOM,
2320         },
2321         {
2322                 .name   = "allrandrepeat",
2323                 .lname  = "All Random Repeat",
2324                 .type   = FIO_OPT_BOOL,
2325                 .off1   = offsetof(struct thread_options, allrand_repeatable),
2326                 .help   = "Use repeatable random numbers for everything",
2327                 .def    = "0",
2328                 .category = FIO_OPT_C_IO,
2329                 .group  = FIO_OPT_G_RANDOM,
2330         },
2331         {
2332                 .name   = "nrfiles",
2333                 .lname  = "Number of files",
2334                 .alias  = "nr_files",
2335                 .type   = FIO_OPT_INT,
2336                 .off1   = offsetof(struct thread_options, nr_files),
2337                 .help   = "Split job workload between this number of files",
2338                 .def    = "1",
2339                 .interval = 1,
2340                 .category = FIO_OPT_C_FILE,
2341                 .group  = FIO_OPT_G_INVALID,
2342         },
2343         {
2344                 .name   = "openfiles",
2345                 .lname  = "Number of open files",
2346                 .type   = FIO_OPT_INT,
2347                 .off1   = offsetof(struct thread_options, open_files),
2348                 .help   = "Number of files to keep open at the same time",
2349                 .category = FIO_OPT_C_FILE,
2350                 .group  = FIO_OPT_G_INVALID,
2351         },
2352         {
2353                 .name   = "file_service_type",
2354                 .lname  = "File service type",
2355                 .type   = FIO_OPT_STR,
2356                 .cb     = str_fst_cb,
2357                 .off1   = offsetof(struct thread_options, file_service_type),
2358                 .help   = "How to select which file to service next",
2359                 .def    = "roundrobin",
2360                 .category = FIO_OPT_C_FILE,
2361                 .group  = FIO_OPT_G_INVALID,
2362                 .posval = {
2363                           { .ival = "random",
2364                             .oval = FIO_FSERVICE_RANDOM,
2365                             .help = "Choose a file at random (uniform)",
2366                           },
2367                           { .ival = "zipf",
2368                             .oval = FIO_FSERVICE_ZIPF,
2369                             .help = "Zipf randomized",
2370                           },
2371                           { .ival = "pareto",
2372                             .oval = FIO_FSERVICE_PARETO,
2373                             .help = "Pareto randomized",
2374                           },
2375                           { .ival = "normal",
2376                             .oval = FIO_FSERVICE_GAUSS,
2377                             .help = "Normal (Gaussian) randomized",
2378                           },
2379                           { .ival = "gauss",
2380                             .oval = FIO_FSERVICE_GAUSS,
2381                             .help = "Alias for normal",
2382                           },
2383                           { .ival = "roundrobin",
2384                             .oval = FIO_FSERVICE_RR,
2385                             .help = "Round robin select files",
2386                           },
2387                           { .ival = "sequential",
2388                             .oval = FIO_FSERVICE_SEQ,
2389                             .help = "Finish one file before moving to the next",
2390                           },
2391                 },
2392                 .parent = "nrfiles",
2393                 .hide   = 1,
2394         },
2395 #ifdef FIO_HAVE_ANY_FALLOCATE
2396         {
2397                 .name   = "fallocate",
2398                 .lname  = "Fallocate",
2399                 .type   = FIO_OPT_STR,
2400                 .off1   = offsetof(struct thread_options, fallocate_mode),
2401                 .help   = "Whether pre-allocation is performed when laying out files",
2402                 .def    = "native",
2403                 .category = FIO_OPT_C_FILE,
2404                 .group  = FIO_OPT_G_INVALID,
2405                 .posval = {
2406                           { .ival = "none",
2407                             .oval = FIO_FALLOCATE_NONE,
2408                             .help = "Do not pre-allocate space",
2409                           },
2410                           { .ival = "native",
2411                             .oval = FIO_FALLOCATE_NATIVE,
2412                             .help = "Use native pre-allocation if possible",
2413                           },
2414 #ifdef CONFIG_POSIX_FALLOCATE
2415                           { .ival = "posix",
2416                             .oval = FIO_FALLOCATE_POSIX,
2417                             .help = "Use posix_fallocate()",
2418                           },
2419 #endif
2420 #ifdef CONFIG_LINUX_FALLOCATE
2421                           { .ival = "keep",
2422                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2423                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2424                           },
2425 #endif
2426                           /* Compatibility with former boolean values */
2427                           { .ival = "0",
2428                             .oval = FIO_FALLOCATE_NONE,
2429                             .help = "Alias for 'none'",
2430                           },
2431 #ifdef CONFIG_POSIX_FALLOCATE
2432                           { .ival = "1",
2433                             .oval = FIO_FALLOCATE_POSIX,
2434                             .help = "Alias for 'posix'",
2435                           },
2436 #endif
2437                 },
2438         },
2439 #else   /* FIO_HAVE_ANY_FALLOCATE */
2440         {
2441                 .name   = "fallocate",
2442                 .lname  = "Fallocate",
2443                 .type   = FIO_OPT_UNSUPPORTED,
2444                 .help   = "Your platform does not support fallocate",
2445         },
2446 #endif /* FIO_HAVE_ANY_FALLOCATE */
2447         {
2448                 .name   = "fadvise_hint",
2449                 .lname  = "Fadvise hint",
2450                 .type   = FIO_OPT_STR,
2451                 .off1   = offsetof(struct thread_options, fadvise_hint),
2452                 .posval = {
2453                           { .ival = "0",
2454                             .oval = F_ADV_NONE,
2455                             .help = "Don't issue fadvise/madvise",
2456                           },
2457                           { .ival = "1",
2458                             .oval = F_ADV_TYPE,
2459                             .help = "Advise using fio IO pattern",
2460                           },
2461                           { .ival = "random",
2462                             .oval = F_ADV_RANDOM,
2463                             .help = "Advise using FADV_RANDOM",
2464                           },
2465                           { .ival = "sequential",
2466                             .oval = F_ADV_SEQUENTIAL,
2467                             .help = "Advise using FADV_SEQUENTIAL",
2468                           },
2469                 },
2470                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2471                 .def    = "1",
2472                 .category = FIO_OPT_C_FILE,
2473                 .group  = FIO_OPT_G_INVALID,
2474         },
2475         {
2476                 .name   = "fsync",
2477                 .lname  = "Fsync",
2478                 .type   = FIO_OPT_INT,
2479                 .off1   = offsetof(struct thread_options, fsync_blocks),
2480                 .help   = "Issue fsync for writes every given number of blocks",
2481                 .def    = "0",
2482                 .interval = 1,
2483                 .category = FIO_OPT_C_FILE,
2484                 .group  = FIO_OPT_G_INVALID,
2485         },
2486         {
2487                 .name   = "fdatasync",
2488                 .lname  = "Fdatasync",
2489                 .type   = FIO_OPT_INT,
2490                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2491                 .help   = "Issue fdatasync for writes every given number of blocks",
2492                 .def    = "0",
2493                 .interval = 1,
2494                 .category = FIO_OPT_C_FILE,
2495                 .group  = FIO_OPT_G_INVALID,
2496         },
2497         {
2498                 .name   = "write_barrier",
2499                 .lname  = "Write barrier",
2500                 .type   = FIO_OPT_INT,
2501                 .off1   = offsetof(struct thread_options, barrier_blocks),
2502                 .help   = "Make every Nth write a barrier write",
2503                 .def    = "0",
2504                 .interval = 1,
2505                 .category = FIO_OPT_C_IO,
2506                 .group  = FIO_OPT_G_INVALID,
2507         },
2508 #ifdef CONFIG_SYNC_FILE_RANGE
2509         {
2510                 .name   = "sync_file_range",
2511                 .lname  = "Sync file range",
2512                 .posval = {
2513                           { .ival = "wait_before",
2514                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2515                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2516                             .orval  = 1,
2517                           },
2518                           { .ival = "write",
2519                             .oval = SYNC_FILE_RANGE_WRITE,
2520                             .help = "SYNC_FILE_RANGE_WRITE",
2521                             .orval  = 1,
2522                           },
2523                           {
2524                             .ival = "wait_after",
2525                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2526                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2527                             .orval  = 1,
2528                           },
2529                 },
2530                 .type   = FIO_OPT_STR_MULTI,
2531                 .cb     = str_sfr_cb,
2532                 .off1   = offsetof(struct thread_options, sync_file_range),
2533                 .help   = "Use sync_file_range()",
2534                 .category = FIO_OPT_C_FILE,
2535                 .group  = FIO_OPT_G_INVALID,
2536         },
2537 #else
2538         {
2539                 .name   = "sync_file_range",
2540                 .lname  = "Sync file range",
2541                 .type   = FIO_OPT_UNSUPPORTED,
2542                 .help   = "Your platform does not support sync_file_range",
2543         },
2544 #endif
2545         {
2546                 .name   = "direct",
2547                 .lname  = "Direct I/O",
2548                 .type   = FIO_OPT_BOOL,
2549                 .off1   = offsetof(struct thread_options, odirect),
2550                 .help   = "Use O_DIRECT IO (negates buffered)",
2551                 .def    = "0",
2552                 .inverse = "buffered",
2553                 .category = FIO_OPT_C_IO,
2554                 .group  = FIO_OPT_G_IO_TYPE,
2555         },
2556         {
2557                 .name   = "atomic",
2558                 .lname  = "Atomic I/O",
2559                 .type   = FIO_OPT_BOOL,
2560                 .off1   = offsetof(struct thread_options, oatomic),
2561                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2562                 .def    = "0",
2563                 .category = FIO_OPT_C_IO,
2564                 .group  = FIO_OPT_G_IO_TYPE,
2565         },
2566         {
2567                 .name   = "buffered",
2568                 .lname  = "Buffered I/O",
2569                 .type   = FIO_OPT_BOOL,
2570                 .off1   = offsetof(struct thread_options, odirect),
2571                 .neg    = 1,
2572                 .help   = "Use buffered IO (negates direct)",
2573                 .def    = "1",
2574                 .inverse = "direct",
2575                 .category = FIO_OPT_C_IO,
2576                 .group  = FIO_OPT_G_IO_TYPE,
2577         },
2578         {
2579                 .name   = "overwrite",
2580                 .lname  = "Overwrite",
2581                 .type   = FIO_OPT_BOOL,
2582                 .off1   = offsetof(struct thread_options, overwrite),
2583                 .help   = "When writing, set whether to overwrite current data",
2584                 .def    = "0",
2585                 .category = FIO_OPT_C_FILE,
2586                 .group  = FIO_OPT_G_INVALID,
2587         },
2588         {
2589                 .name   = "loops",
2590                 .lname  = "Loops",
2591                 .type   = FIO_OPT_INT,
2592                 .off1   = offsetof(struct thread_options, loops),
2593                 .help   = "Number of times to run the job",
2594                 .def    = "1",
2595                 .interval = 1,
2596                 .category = FIO_OPT_C_GENERAL,
2597                 .group  = FIO_OPT_G_RUNTIME,
2598         },
2599         {
2600                 .name   = "numjobs",
2601                 .lname  = "Number of jobs",
2602                 .type   = FIO_OPT_INT,
2603                 .off1   = offsetof(struct thread_options, numjobs),
2604                 .help   = "Duplicate this job this many times",
2605                 .def    = "1",
2606                 .interval = 1,
2607                 .category = FIO_OPT_C_GENERAL,
2608                 .group  = FIO_OPT_G_RUNTIME,
2609         },
2610         {
2611                 .name   = "startdelay",
2612                 .lname  = "Start delay",
2613                 .type   = FIO_OPT_STR_VAL_TIME,
2614                 .off1   = offsetof(struct thread_options, start_delay),
2615                 .off2   = offsetof(struct thread_options, start_delay_high),
2616                 .help   = "Only start job when this period has passed",
2617                 .def    = "0",
2618                 .is_seconds = 1,
2619                 .is_time = 1,
2620                 .category = FIO_OPT_C_GENERAL,
2621                 .group  = FIO_OPT_G_RUNTIME,
2622         },
2623         {
2624                 .name   = "runtime",
2625                 .lname  = "Runtime",
2626                 .alias  = "timeout",
2627                 .type   = FIO_OPT_STR_VAL_TIME,
2628                 .off1   = offsetof(struct thread_options, timeout),
2629                 .help   = "Stop workload when this amount of time has passed",
2630                 .def    = "0",
2631                 .is_seconds = 1,
2632                 .is_time = 1,
2633                 .category = FIO_OPT_C_GENERAL,
2634                 .group  = FIO_OPT_G_RUNTIME,
2635         },
2636         {
2637                 .name   = "time_based",
2638                 .lname  = "Time based",
2639                 .type   = FIO_OPT_STR_SET,
2640                 .off1   = offsetof(struct thread_options, time_based),
2641                 .help   = "Keep running until runtime/timeout is met",
2642                 .category = FIO_OPT_C_GENERAL,
2643                 .group  = FIO_OPT_G_RUNTIME,
2644         },
2645         {
2646                 .name   = "verify_only",
2647                 .lname  = "Verify only",
2648                 .type   = FIO_OPT_STR_SET,
2649                 .off1   = offsetof(struct thread_options, verify_only),
2650                 .help   = "Verifies previously written data is still valid",
2651                 .category = FIO_OPT_C_GENERAL,
2652                 .group  = FIO_OPT_G_RUNTIME,
2653         },
2654         {
2655                 .name   = "ramp_time",
2656                 .lname  = "Ramp time",
2657                 .type   = FIO_OPT_STR_VAL_TIME,
2658                 .off1   = offsetof(struct thread_options, ramp_time),
2659                 .help   = "Ramp up time before measuring performance",
2660                 .is_seconds = 1,
2661                 .is_time = 1,
2662                 .category = FIO_OPT_C_GENERAL,
2663                 .group  = FIO_OPT_G_RUNTIME,
2664         },
2665         {
2666                 .name   = "clocksource",
2667                 .lname  = "Clock source",
2668                 .type   = FIO_OPT_STR,
2669                 .cb     = fio_clock_source_cb,
2670                 .off1   = offsetof(struct thread_options, clocksource),
2671                 .help   = "What type of timing source to use",
2672                 .category = FIO_OPT_C_GENERAL,
2673                 .group  = FIO_OPT_G_CLOCK,
2674                 .posval = {
2675 #ifdef CONFIG_GETTIMEOFDAY
2676                           { .ival = "gettimeofday",
2677                             .oval = CS_GTOD,
2678                             .help = "Use gettimeofday(2) for timing",
2679                           },
2680 #endif
2681 #ifdef CONFIG_CLOCK_GETTIME
2682                           { .ival = "clock_gettime",
2683                             .oval = CS_CGETTIME,
2684                             .help = "Use clock_gettime(2) for timing",
2685                           },
2686 #endif
2687 #ifdef ARCH_HAVE_CPU_CLOCK
2688                           { .ival = "cpu",
2689                             .oval = CS_CPUCLOCK,
2690                             .help = "Use CPU private clock",
2691                           },
2692 #endif
2693                 },
2694         },
2695         {
2696                 .name   = "mem",
2697                 .alias  = "iomem",
2698                 .lname  = "I/O Memory",
2699                 .type   = FIO_OPT_STR,
2700                 .cb     = str_mem_cb,
2701                 .off1   = offsetof(struct thread_options, mem_type),
2702                 .help   = "Backing type for IO buffers",
2703                 .def    = "malloc",
2704                 .category = FIO_OPT_C_IO,
2705                 .group  = FIO_OPT_G_INVALID,
2706                 .posval = {
2707                           { .ival = "malloc",
2708                             .oval = MEM_MALLOC,
2709                             .help = "Use malloc(3) for IO buffers",
2710                           },
2711 #ifndef CONFIG_NO_SHM
2712                           { .ival = "shm",
2713                             .oval = MEM_SHM,
2714                             .help = "Use shared memory segments for IO buffers",
2715                           },
2716 #ifdef FIO_HAVE_HUGETLB
2717                           { .ival = "shmhuge",
2718                             .oval = MEM_SHMHUGE,
2719                             .help = "Like shm, but use huge pages",
2720                           },
2721 #endif
2722 #endif
2723                           { .ival = "mmap",
2724                             .oval = MEM_MMAP,
2725                             .help = "Use mmap(2) (file or anon) for IO buffers",
2726                           },
2727                           { .ival = "mmapshared",
2728                             .oval = MEM_MMAPSHARED,
2729                             .help = "Like mmap, but use the shared flag",
2730                           },
2731 #ifdef FIO_HAVE_HUGETLB
2732                           { .ival = "mmaphuge",
2733                             .oval = MEM_MMAPHUGE,
2734                             .help = "Like mmap, but use huge pages",
2735                           },
2736 #endif
2737 #ifdef CONFIG_CUDA
2738                           { .ival = "cudamalloc",
2739                             .oval = MEM_CUDA_MALLOC,
2740                             .help = "Allocate GPU device memory for GPUDirect RDMA",
2741                           },
2742 #endif
2743                   },
2744         },
2745         {
2746                 .name   = "iomem_align",
2747                 .alias  = "mem_align",
2748                 .lname  = "I/O memory alignment",
2749                 .type   = FIO_OPT_INT,
2750                 .off1   = offsetof(struct thread_options, mem_align),
2751                 .minval = 0,
2752                 .help   = "IO memory buffer offset alignment",
2753                 .def    = "0",
2754                 .parent = "iomem",
2755                 .hide   = 1,
2756                 .category = FIO_OPT_C_IO,
2757                 .group  = FIO_OPT_G_INVALID,
2758         },
2759         {
2760                 .name   = "verify",
2761                 .lname  = "Verify",
2762                 .type   = FIO_OPT_STR,
2763                 .off1   = offsetof(struct thread_options, verify),
2764                 .help   = "Verify data written",
2765                 .def    = "0",
2766                 .category = FIO_OPT_C_IO,
2767                 .group  = FIO_OPT_G_VERIFY,
2768                 .posval = {
2769                           { .ival = "0",
2770                             .oval = VERIFY_NONE,
2771                             .help = "Don't do IO verification",
2772                           },
2773                           { .ival = "md5",
2774                             .oval = VERIFY_MD5,
2775                             .help = "Use md5 checksums for verification",
2776                           },
2777                           { .ival = "crc64",
2778                             .oval = VERIFY_CRC64,
2779                             .help = "Use crc64 checksums for verification",
2780                           },
2781                           { .ival = "crc32",
2782                             .oval = VERIFY_CRC32,
2783                             .help = "Use crc32 checksums for verification",
2784                           },
2785                           { .ival = "crc32c-intel",
2786                             .oval = VERIFY_CRC32C,
2787                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2788                           },
2789                           { .ival = "crc32c",
2790                             .oval = VERIFY_CRC32C,
2791                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2792                           },
2793                           { .ival = "crc16",
2794                             .oval = VERIFY_CRC16,
2795                             .help = "Use crc16 checksums for verification",
2796                           },
2797                           { .ival = "crc7",
2798                             .oval = VERIFY_CRC7,
2799                             .help = "Use crc7 checksums for verification",
2800                           },
2801                           { .ival = "sha1",
2802                             .oval = VERIFY_SHA1,
2803                             .help = "Use sha1 checksums for verification",
2804                           },
2805                           { .ival = "sha256",
2806                             .oval = VERIFY_SHA256,
2807                             .help = "Use sha256 checksums for verification",
2808                           },
2809                           { .ival = "sha512",
2810                             .oval = VERIFY_SHA512,
2811                             .help = "Use sha512 checksums for verification",
2812                           },
2813                           { .ival = "sha3-224",
2814                             .oval = VERIFY_SHA3_224,
2815                             .help = "Use sha3-224 checksums for verification",
2816                           },
2817                           { .ival = "sha3-256",
2818                             .oval = VERIFY_SHA3_256,
2819                             .help = "Use sha3-256 checksums for verification",
2820                           },
2821                           { .ival = "sha3-384",
2822                             .oval = VERIFY_SHA3_384,
2823                             .help = "Use sha3-384 checksums for verification",
2824                           },
2825                           { .ival = "sha3-512",
2826                             .oval = VERIFY_SHA3_512,
2827                             .help = "Use sha3-512 checksums for verification",
2828                           },
2829                           { .ival = "xxhash",
2830                             .oval = VERIFY_XXHASH,
2831                             .help = "Use xxhash checksums for verification",
2832                           },
2833                           /* Meta information was included into verify_header,
2834                            * 'meta' verification is implied by default. */
2835                           { .ival = "meta",
2836                             .oval = VERIFY_HDR_ONLY,
2837                             .help = "Use io information for verification. "
2838                                     "Now is implied by default, thus option is obsolete, "
2839                                     "don't use it",
2840                           },
2841                           { .ival = "pattern",
2842                             .oval = VERIFY_PATTERN_NO_HDR,
2843                             .help = "Verify strict pattern",
2844                           },
2845                           {
2846                             .ival = "null",
2847                             .oval = VERIFY_NULL,
2848                             .help = "Pretend to verify",
2849                           },
2850                 },
2851         },
2852         {
2853                 .name   = "do_verify",
2854                 .lname  = "Perform verify step",
2855                 .type   = FIO_OPT_BOOL,
2856                 .off1   = offsetof(struct thread_options, do_verify),
2857                 .help   = "Run verification stage after write",
2858                 .def    = "1",
2859                 .parent = "verify",
2860                 .hide   = 1,
2861                 .category = FIO_OPT_C_IO,
2862                 .group  = FIO_OPT_G_VERIFY,
2863         },
2864         {
2865                 .name   = "verifysort",
2866                 .lname  = "Verify sort",
2867                 .type   = FIO_OPT_SOFT_DEPRECATED,
2868                 .category = FIO_OPT_C_IO,
2869                 .group  = FIO_OPT_G_VERIFY,
2870         },
2871         {
2872                 .name   = "verifysort_nr",
2873                 .lname  = "Verify Sort Nr",
2874                 .type   = FIO_OPT_SOFT_DEPRECATED,
2875                 .category = FIO_OPT_C_IO,
2876                 .group  = FIO_OPT_G_VERIFY,
2877         },
2878         {
2879                 .name   = "verify_interval",
2880                 .lname  = "Verify interval",
2881                 .type   = FIO_OPT_INT,
2882                 .off1   = offsetof(struct thread_options, verify_interval),
2883                 .minval = 2 * sizeof(struct verify_header),
2884                 .help   = "Store verify buffer header every N bytes",
2885                 .parent = "verify",
2886                 .hide   = 1,
2887                 .interval = 2 * sizeof(struct verify_header),
2888                 .category = FIO_OPT_C_IO,
2889                 .group  = FIO_OPT_G_VERIFY,
2890         },
2891         {
2892                 .name   = "verify_offset",
2893                 .lname  = "Verify offset",
2894                 .type   = FIO_OPT_INT,
2895                 .help   = "Offset verify header location by N bytes",
2896                 .off1   = offsetof(struct thread_options, verify_offset),
2897                 .minval = sizeof(struct verify_header),
2898                 .parent = "verify",
2899                 .hide   = 1,
2900                 .category = FIO_OPT_C_IO,
2901                 .group  = FIO_OPT_G_VERIFY,
2902         },
2903         {
2904                 .name   = "verify_pattern",
2905                 .lname  = "Verify pattern",
2906                 .type   = FIO_OPT_STR,
2907                 .cb     = str_verify_pattern_cb,
2908                 .off1   = offsetof(struct thread_options, verify_pattern),
2909                 .help   = "Fill pattern for IO buffers",
2910                 .parent = "verify",
2911                 .hide   = 1,
2912                 .category = FIO_OPT_C_IO,
2913                 .group  = FIO_OPT_G_VERIFY,
2914         },
2915         {
2916                 .name   = "verify_fatal",
2917                 .lname  = "Verify fatal",
2918                 .type   = FIO_OPT_BOOL,
2919                 .off1   = offsetof(struct thread_options, verify_fatal),
2920                 .def    = "0",
2921                 .help   = "Exit on a single verify failure, don't continue",
2922                 .parent = "verify",
2923                 .hide   = 1,
2924                 .category = FIO_OPT_C_IO,
2925                 .group  = FIO_OPT_G_VERIFY,
2926         },
2927         {
2928                 .name   = "verify_dump",
2929                 .lname  = "Verify dump",
2930                 .type   = FIO_OPT_BOOL,
2931                 .off1   = offsetof(struct thread_options, verify_dump),
2932                 .def    = "0",
2933                 .help   = "Dump contents of good and bad blocks on failure",
2934                 .parent = "verify",
2935                 .hide   = 1,
2936                 .category = FIO_OPT_C_IO,
2937                 .group  = FIO_OPT_G_VERIFY,
2938         },
2939         {
2940                 .name   = "verify_async",
2941                 .lname  = "Verify asynchronously",
2942                 .type   = FIO_OPT_INT,
2943                 .off1   = offsetof(struct thread_options, verify_async),
2944                 .def    = "0",
2945                 .help   = "Number of async verifier threads to use",
2946                 .parent = "verify",
2947                 .hide   = 1,
2948                 .category = FIO_OPT_C_IO,
2949                 .group  = FIO_OPT_G_VERIFY,
2950         },
2951         {
2952                 .name   = "verify_backlog",
2953                 .lname  = "Verify backlog",
2954                 .type   = FIO_OPT_STR_VAL,
2955                 .off1   = offsetof(struct thread_options, verify_backlog),
2956                 .help   = "Verify after this number of blocks are written",
2957                 .parent = "verify",
2958                 .hide   = 1,
2959                 .category = FIO_OPT_C_IO,
2960                 .group  = FIO_OPT_G_VERIFY,
2961         },
2962         {
2963                 .name   = "verify_backlog_batch",
2964                 .lname  = "Verify backlog batch",
2965                 .type   = FIO_OPT_INT,
2966                 .off1   = offsetof(struct thread_options, verify_batch),
2967                 .help   = "Verify this number of IO blocks",
2968                 .parent = "verify",
2969                 .hide   = 1,
2970                 .category = FIO_OPT_C_IO,
2971                 .group  = FIO_OPT_G_VERIFY,
2972         },
2973 #ifdef FIO_HAVE_CPU_AFFINITY
2974         {
2975                 .name   = "verify_async_cpus",
2976                 .lname  = "Async verify CPUs",
2977                 .type   = FIO_OPT_STR,
2978                 .cb     = str_verify_cpus_allowed_cb,
2979                 .off1   = offsetof(struct thread_options, verify_cpumask),
2980                 .help   = "Set CPUs allowed for async verify threads",
2981                 .parent = "verify_async",
2982                 .hide   = 1,
2983                 .category = FIO_OPT_C_IO,
2984                 .group  = FIO_OPT_G_VERIFY,
2985         },
2986 #else
2987         {
2988                 .name   = "verify_async_cpus",
2989                 .lname  = "Async verify CPUs",
2990                 .type   = FIO_OPT_UNSUPPORTED,
2991                 .help   = "Your platform does not support CPU affinities",
2992         },
2993 #endif
2994         {
2995                 .name   = "experimental_verify",
2996                 .lname  = "Experimental Verify",
2997                 .off1   = offsetof(struct thread_options, experimental_verify),
2998                 .type   = FIO_OPT_BOOL,
2999                 .help   = "Enable experimental verification",
3000                 .parent = "verify",
3001                 .category = FIO_OPT_C_IO,
3002                 .group  = FIO_OPT_G_VERIFY,
3003         },
3004         {
3005                 .name   = "verify_state_load",
3006                 .lname  = "Load verify state",
3007                 .off1   = offsetof(struct thread_options, verify_state),
3008                 .type   = FIO_OPT_BOOL,
3009                 .help   = "Load verify termination state",
3010                 .parent = "verify",
3011                 .category = FIO_OPT_C_IO,
3012                 .group  = FIO_OPT_G_VERIFY,
3013         },
3014         {
3015                 .name   = "verify_state_save",
3016                 .lname  = "Save verify state",
3017                 .off1   = offsetof(struct thread_options, verify_state_save),
3018                 .type   = FIO_OPT_BOOL,
3019                 .def    = "1",
3020                 .help   = "Save verify state on termination",
3021                 .parent = "verify",
3022                 .category = FIO_OPT_C_IO,
3023                 .group  = FIO_OPT_G_VERIFY,
3024         },
3025 #ifdef FIO_HAVE_TRIM
3026         {
3027                 .name   = "trim_percentage",
3028                 .lname  = "Trim percentage",
3029                 .type   = FIO_OPT_INT,
3030                 .off1   = offsetof(struct thread_options, trim_percentage),
3031                 .minval = 0,
3032                 .maxval = 100,
3033                 .help   = "Number of verify blocks to trim (i.e., discard)",
3034                 .parent = "verify",
3035                 .def    = "0",
3036                 .interval = 1,
3037                 .hide   = 1,
3038                 .category = FIO_OPT_C_IO,
3039                 .group  = FIO_OPT_G_TRIM,
3040         },
3041         {
3042                 .name   = "trim_verify_zero",
3043                 .lname  = "Verify trim zero",
3044                 .type   = FIO_OPT_BOOL,
3045                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3046                 .off1   = offsetof(struct thread_options, trim_zero),
3047                 .parent = "trim_percentage",
3048                 .hide   = 1,
3049                 .def    = "1",
3050                 .category = FIO_OPT_C_IO,
3051                 .group  = FIO_OPT_G_TRIM,
3052         },
3053         {
3054                 .name   = "trim_backlog",
3055                 .lname  = "Trim backlog",
3056                 .type   = FIO_OPT_STR_VAL,
3057                 .off1   = offsetof(struct thread_options, trim_backlog),
3058                 .help   = "Trim after this number of blocks are written",
3059                 .parent = "trim_percentage",
3060                 .hide   = 1,
3061                 .interval = 1,
3062                 .category = FIO_OPT_C_IO,
3063                 .group  = FIO_OPT_G_TRIM,
3064         },
3065         {
3066                 .name   = "trim_backlog_batch",
3067                 .lname  = "Trim backlog batch",
3068                 .type   = FIO_OPT_INT,
3069                 .off1   = offsetof(struct thread_options, trim_batch),
3070                 .help   = "Trim this number of IO blocks",
3071                 .parent = "trim_percentage",
3072                 .hide   = 1,
3073                 .interval = 1,
3074                 .category = FIO_OPT_C_IO,
3075                 .group  = FIO_OPT_G_TRIM,
3076         },
3077 #else
3078         {
3079                 .name   = "trim_percentage",
3080                 .lname  = "Trim percentage",
3081                 .type   = FIO_OPT_UNSUPPORTED,
3082                 .help   = "Fio does not support TRIM on your platform",
3083         },
3084         {
3085                 .name   = "trim_verify_zero",
3086                 .lname  = "Verify trim zero",
3087                 .type   = FIO_OPT_UNSUPPORTED,
3088                 .help   = "Fio does not support TRIM on your platform",
3089         },
3090         {
3091                 .name   = "trim_backlog",
3092                 .lname  = "Trim backlog",
3093                 .type   = FIO_OPT_UNSUPPORTED,
3094                 .help   = "Fio does not support TRIM on your platform",
3095         },
3096         {
3097                 .name   = "trim_backlog_batch",
3098                 .lname  = "Trim backlog batch",
3099                 .type   = FIO_OPT_UNSUPPORTED,
3100                 .help   = "Fio does not support TRIM on your platform",
3101         },
3102 #endif
3103         {
3104                 .name   = "write_iolog",
3105                 .lname  = "Write I/O log",
3106                 .type   = FIO_OPT_STR_STORE,
3107                 .off1   = offsetof(struct thread_options, write_iolog_file),
3108                 .help   = "Store IO pattern to file",
3109                 .category = FIO_OPT_C_IO,
3110                 .group  = FIO_OPT_G_IOLOG,
3111         },
3112         {
3113                 .name   = "read_iolog",
3114                 .lname  = "Read I/O log",
3115                 .type   = FIO_OPT_STR_STORE,
3116                 .off1   = offsetof(struct thread_options, read_iolog_file),
3117                 .help   = "Playback IO pattern from file",
3118                 .category = FIO_OPT_C_IO,
3119                 .group  = FIO_OPT_G_IOLOG,
3120         },
3121         {
3122                 .name   = "read_iolog_chunked",
3123                 .lname  = "Read I/O log in parts",
3124                 .type   = FIO_OPT_BOOL,
3125                 .off1   = offsetof(struct thread_options, read_iolog_chunked),
3126                 .def    = "0",
3127                 .parent = "read_iolog",
3128                 .help   = "Parse IO pattern in chunks",
3129                 .category = FIO_OPT_C_IO,
3130                 .group  = FIO_OPT_G_IOLOG,
3131         },
3132         {
3133                 .name   = "replay_no_stall",
3134                 .lname  = "Don't stall on replay",
3135                 .type   = FIO_OPT_BOOL,
3136                 .off1   = offsetof(struct thread_options, no_stall),
3137                 .def    = "0",
3138                 .parent = "read_iolog",
3139                 .hide   = 1,
3140                 .help   = "Playback IO pattern file as fast as possible without stalls",
3141                 .category = FIO_OPT_C_IO,
3142                 .group  = FIO_OPT_G_IOLOG,
3143         },
3144         {
3145                 .name   = "replay_redirect",
3146                 .lname  = "Redirect device for replay",
3147                 .type   = FIO_OPT_STR_STORE,
3148                 .off1   = offsetof(struct thread_options, replay_redirect),
3149                 .parent = "read_iolog",
3150                 .hide   = 1,
3151                 .help   = "Replay all I/O onto this device, regardless of trace device",
3152                 .category = FIO_OPT_C_IO,
3153                 .group  = FIO_OPT_G_IOLOG,
3154         },
3155         {
3156                 .name   = "replay_scale",
3157                 .lname  = "Replace offset scale factor",
3158                 .type   = FIO_OPT_INT,
3159                 .off1   = offsetof(struct thread_options, replay_scale),
3160                 .parent = "read_iolog",
3161                 .def    = "1",
3162                 .help   = "Align offsets to this blocksize",
3163                 .category = FIO_OPT_C_IO,
3164                 .group  = FIO_OPT_G_IOLOG,
3165         },
3166         {
3167                 .name   = "replay_align",
3168                 .lname  = "Replace alignment",
3169                 .type   = FIO_OPT_INT,
3170                 .off1   = offsetof(struct thread_options, replay_align),
3171                 .parent = "read_iolog",
3172                 .help   = "Scale offset down by this factor",
3173                 .category = FIO_OPT_C_IO,
3174                 .group  = FIO_OPT_G_IOLOG,
3175                 .pow2   = 1,
3176         },
3177         {
3178                 .name   = "replay_time_scale",
3179                 .lname  = "Replay Time Scale",
3180                 .type   = FIO_OPT_INT,
3181                 .off1   = offsetof(struct thread_options, replay_time_scale),
3182                 .def    = "100",
3183                 .minval = 1,
3184                 .parent = "read_iolog",
3185                 .hide   = 1,
3186                 .help   = "Scale time for replay events",
3187                 .category = FIO_OPT_C_IO,
3188                 .group  = FIO_OPT_G_IOLOG,
3189         },
3190         {
3191                 .name   = "replay_skip",
3192                 .lname  = "Replay Skip",
3193                 .type   = FIO_OPT_STR,
3194                 .cb     = str_replay_skip_cb,
3195                 .off1   = offsetof(struct thread_options, replay_skip),
3196                 .parent = "read_iolog",
3197                 .help   = "Skip certain IO types (read,write,trim,flush)",
3198                 .category = FIO_OPT_C_IO,
3199                 .group  = FIO_OPT_G_IOLOG,
3200         },
3201         {
3202                 .name   = "exec_prerun",
3203                 .lname  = "Pre-execute runnable",
3204                 .type   = FIO_OPT_STR_STORE,
3205                 .off1   = offsetof(struct thread_options, exec_prerun),
3206                 .help   = "Execute this file prior to running job",
3207                 .category = FIO_OPT_C_GENERAL,
3208                 .group  = FIO_OPT_G_INVALID,
3209         },
3210         {
3211                 .name   = "exec_postrun",
3212                 .lname  = "Post-execute runnable",
3213                 .type   = FIO_OPT_STR_STORE,
3214                 .off1   = offsetof(struct thread_options, exec_postrun),
3215                 .help   = "Execute this file after running job",
3216                 .category = FIO_OPT_C_GENERAL,
3217                 .group  = FIO_OPT_G_INVALID,
3218         },
3219 #ifdef FIO_HAVE_IOSCHED_SWITCH
3220         {
3221                 .name   = "ioscheduler",
3222                 .lname  = "I/O scheduler",
3223                 .type   = FIO_OPT_STR_STORE,
3224                 .off1   = offsetof(struct thread_options, ioscheduler),
3225                 .help   = "Use this IO scheduler on the backing device",
3226                 .category = FIO_OPT_C_FILE,
3227                 .group  = FIO_OPT_G_INVALID,
3228         },
3229 #else
3230         {
3231                 .name   = "ioscheduler",
3232                 .lname  = "I/O scheduler",
3233                 .type   = FIO_OPT_UNSUPPORTED,
3234                 .help   = "Your platform does not support IO scheduler switching",
3235         },
3236 #endif
3237         {
3238                 .name   = "zonemode",
3239                 .lname  = "Zone mode",
3240                 .help   = "Mode for the zonesize, zonerange and zoneskip parameters",
3241                 .type   = FIO_OPT_STR,
3242                 .off1   = offsetof(struct thread_options, zone_mode),
3243                 .def    = "none",
3244                 .category = FIO_OPT_C_IO,
3245                 .group  = FIO_OPT_G_ZONE,
3246                 .posval = {
3247                            { .ival = "none",
3248                              .oval = ZONE_MODE_NONE,
3249                              .help = "no zoning",
3250                            },
3251                            { .ival = "strided",
3252                              .oval = ZONE_MODE_STRIDED,
3253                              .help = "strided mode - random I/O is restricted to a single zone",
3254                            },
3255                            { .ival = "zbd",
3256                              .oval = ZONE_MODE_ZBD,
3257                              .help = "zoned block device mode - random I/O selects one of multiple zones randomly",
3258                            },
3259                 },
3260         },
3261         {
3262                 .name   = "zonesize",
3263                 .lname  = "Zone size",
3264                 .type   = FIO_OPT_STR_VAL,
3265                 .off1   = offsetof(struct thread_options, zone_size),
3266                 .help   = "Amount of data to read per zone",
3267                 .def    = "0",
3268                 .interval = 1024 * 1024,
3269                 .category = FIO_OPT_C_IO,
3270                 .group  = FIO_OPT_G_ZONE,
3271         },
3272         {
3273                 .name   = "zonerange",
3274                 .lname  = "Zone range",
3275                 .type   = FIO_OPT_STR_VAL,
3276                 .off1   = offsetof(struct thread_options, zone_range),
3277                 .help   = "Give size of an IO zone",
3278                 .def    = "0",
3279                 .interval = 1024 * 1024,
3280                 .category = FIO_OPT_C_IO,
3281                 .group  = FIO_OPT_G_ZONE,
3282         },
3283         {
3284                 .name   = "zoneskip",
3285                 .lname  = "Zone skip",
3286                 .type   = FIO_OPT_STR_VAL,
3287                 .off1   = offsetof(struct thread_options, zone_skip),
3288                 .help   = "Space between IO zones",
3289                 .def    = "0",
3290                 .interval = 1024 * 1024,
3291                 .category = FIO_OPT_C_IO,
3292                 .group  = FIO_OPT_G_ZONE,
3293         },
3294         {
3295                 .name   = "read_beyond_wp",
3296                 .lname  = "Allow reads beyond the zone write pointer",
3297                 .type   = FIO_OPT_BOOL,
3298                 .off1   = offsetof(struct thread_options, read_beyond_wp),
3299                 .help   = "Allow reads beyond the zone write pointer",
3300                 .def    = "0",
3301                 .category = FIO_OPT_C_IO,
3302                 .group  = FIO_OPT_G_INVALID,
3303         },
3304         {
3305                 .name   = "max_open_zones",
3306                 .lname  = "Maximum number of open zones",
3307                 .type   = FIO_OPT_INT,
3308                 .off1   = offsetof(struct thread_options, max_open_zones),
3309                 .maxval = FIO_MAX_OPEN_ZBD_ZONES,
3310                 .help   = "Limit random writes to SMR drives to the specified"
3311                           " number of sequential zones",
3312                 .def    = "0",
3313                 .category = FIO_OPT_C_IO,
3314                 .group  = FIO_OPT_G_INVALID,
3315         },
3316         {
3317                 .name   = "zone_reset_threshold",
3318                 .lname  = "Zone reset threshold",
3319                 .help   = "Zoned block device reset threshold",
3320                 .type   = FIO_OPT_FLOAT_LIST,
3321                 .maxlen = 1,
3322                 .off1   = offsetof(struct thread_options, zrt),
3323                 .minfp  = 0,
3324                 .maxfp  = 1,
3325                 .category = FIO_OPT_C_IO,
3326                 .group  = FIO_OPT_G_ZONE,
3327         },
3328         {
3329                 .name   = "zone_reset_frequency",
3330                 .lname  = "Zone reset frequency",
3331                 .help   = "Zoned block device zone reset frequency in HZ",
3332                 .type   = FIO_OPT_FLOAT_LIST,
3333                 .maxlen = 1,
3334                 .off1   = offsetof(struct thread_options, zrf),
3335                 .minfp  = 0,
3336                 .maxfp  = 1,
3337                 .category = FIO_OPT_C_IO,
3338                 .group  = FIO_OPT_G_ZONE,
3339         },
3340         {
3341                 .name   = "lockmem",
3342                 .lname  = "Lock memory",
3343                 .type   = FIO_OPT_STR_VAL,
3344                 .off1   = offsetof(struct thread_options, lockmem),
3345                 .help   = "Lock down this amount of memory (per worker)",
3346                 .def    = "0",
3347                 .interval = 1024 * 1024,
3348                 .category = FIO_OPT_C_GENERAL,
3349                 .group  = FIO_OPT_G_INVALID,
3350         },
3351         {
3352                 .name   = "rwmixread",
3353                 .lname  = "Read/write mix read",
3354                 .type   = FIO_OPT_INT,
3355                 .cb     = str_rwmix_read_cb,
3356                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3357                 .maxval = 100,
3358                 .help   = "Percentage of mixed workload that is reads",
3359                 .def    = "50",
3360                 .interval = 5,
3361                 .inverse = "rwmixwrite",
3362                 .category = FIO_OPT_C_IO,
3363                 .group  = FIO_OPT_G_RWMIX,
3364         },
3365         {
3366                 .name   = "rwmixwrite",
3367                 .lname  = "Read/write mix write",
3368                 .type   = FIO_OPT_INT,
3369                 .cb     = str_rwmix_write_cb,
3370                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3371                 .maxval = 100,
3372                 .help   = "Percentage of mixed workload that is writes",
3373                 .def    = "50",
3374                 .interval = 5,
3375                 .inverse = "rwmixread",
3376                 .category = FIO_OPT_C_IO,
3377                 .group  = FIO_OPT_G_RWMIX,
3378         },
3379         {
3380                 .name   = "rwmixcycle",
3381                 .lname  = "Read/write mix cycle",
3382                 .type   = FIO_OPT_DEPRECATED,
3383                 .category = FIO_OPT_C_IO,
3384                 .group  = FIO_OPT_G_RWMIX,
3385         },
3386         {
3387                 .name   = "nice",
3388                 .lname  = "Nice",
3389                 .type   = FIO_OPT_INT,
3390                 .off1   = offsetof(struct thread_options, nice),
3391                 .help   = "Set job CPU nice value",
3392                 .minval = -20,
3393                 .maxval = 19,
3394                 .def    = "0",
3395                 .interval = 1,
3396                 .category = FIO_OPT_C_GENERAL,
3397                 .group  = FIO_OPT_G_CRED,
3398         },
3399 #ifdef FIO_HAVE_IOPRIO
3400         {
3401                 .name   = "prio",
3402                 .lname  = "I/O nice priority",
3403                 .type   = FIO_OPT_INT,
3404                 .off1   = offsetof(struct thread_options, ioprio),
3405                 .help   = "Set job IO priority value",
3406                 .minval = IOPRIO_MIN_PRIO,
3407                 .maxval = IOPRIO_MAX_PRIO,
3408                 .interval = 1,
3409                 .category = FIO_OPT_C_GENERAL,
3410                 .group  = FIO_OPT_G_CRED,
3411         },
3412 #else
3413         {
3414                 .name   = "prio",
3415                 .lname  = "I/O nice priority",
3416                 .type   = FIO_OPT_UNSUPPORTED,
3417                 .help   = "Your platform does not support IO priorities",
3418         },
3419 #endif
3420 #ifdef FIO_HAVE_IOPRIO_CLASS
3421 #ifndef FIO_HAVE_IOPRIO
3422 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3423 #endif
3424         {
3425                 .name   = "prioclass",
3426                 .lname  = "I/O nice priority class",
3427                 .type   = FIO_OPT_INT,
3428                 .off1   = offsetof(struct thread_options, ioprio_class),
3429                 .help   = "Set job IO priority class",
3430                 .minval = IOPRIO_MIN_PRIO_CLASS,
3431                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3432                 .interval = 1,
3433                 .category = FIO_OPT_C_GENERAL,
3434                 .group  = FIO_OPT_G_CRED,
3435         },
3436 #else
3437         {
3438                 .name   = "prioclass",
3439                 .lname  = "I/O nice priority class",
3440                 .type   = FIO_OPT_UNSUPPORTED,
3441                 .help   = "Your platform does not support IO priority classes",
3442         },
3443 #endif
3444         {
3445                 .name   = "thinktime",
3446                 .lname  = "Thinktime",
3447                 .type   = FIO_OPT_INT,
3448                 .off1   = offsetof(struct thread_options, thinktime),
3449                 .help   = "Idle time between IO buffers (usec)",
3450                 .def    = "0",
3451                 .is_time = 1,
3452                 .category = FIO_OPT_C_IO,
3453                 .group  = FIO_OPT_G_THINKTIME,
3454         },
3455         {
3456                 .name   = "thinktime_spin",
3457                 .lname  = "Thinktime spin",
3458                 .type   = FIO_OPT_INT,
3459                 .off1   = offsetof(struct thread_options, thinktime_spin),
3460                 .help   = "Start think time by spinning this amount (usec)",
3461                 .def    = "0",
3462                 .is_time = 1,
3463                 .parent = "thinktime",
3464                 .hide   = 1,
3465                 .category = FIO_OPT_C_IO,
3466                 .group  = FIO_OPT_G_THINKTIME,
3467         },
3468         {
3469                 .name   = "thinktime_blocks",
3470                 .lname  = "Thinktime blocks",
3471                 .type   = FIO_OPT_INT,
3472                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3473                 .help   = "IO buffer period between 'thinktime'",
3474                 .def    = "1",
3475                 .parent = "thinktime",
3476                 .hide   = 1,
3477                 .category = FIO_OPT_C_IO,
3478                 .group  = FIO_OPT_G_THINKTIME,
3479         },
3480         {
3481                 .name   = "rate",
3482                 .lname  = "I/O rate",
3483                 .type   = FIO_OPT_INT,
3484                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3485                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3486                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3487                 .help   = "Set bandwidth rate",
3488                 .category = FIO_OPT_C_IO,
3489                 .group  = FIO_OPT_G_RATE,
3490         },
3491         {
3492                 .name   = "rate_min",
3493                 .alias  = "ratemin",
3494                 .lname  = "I/O min rate",
3495                 .type   = FIO_OPT_INT,
3496                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3497                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3498                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3499                 .help   = "Job must meet this rate or it will be shutdown",
3500                 .parent = "rate",
3501                 .hide   = 1,
3502                 .category = FIO_OPT_C_IO,
3503                 .group  = FIO_OPT_G_RATE,
3504         },
3505         {
3506                 .name   = "rate_iops",
3507                 .lname  = "I/O rate IOPS",
3508                 .type   = FIO_OPT_INT,
3509                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3510                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3511                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3512                 .help   = "Limit IO used to this number of IO operations/sec",
3513                 .hide   = 1,
3514                 .category = FIO_OPT_C_IO,
3515                 .group  = FIO_OPT_G_RATE,
3516         },
3517         {
3518                 .name   = "rate_iops_min",
3519                 .lname  = "I/O min rate IOPS",
3520                 .type   = FIO_OPT_INT,
3521                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3522                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3523                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3524                 .help   = "Job must meet this rate or it will be shut down",
3525                 .parent = "rate_iops",
3526                 .hide   = 1,
3527                 .category = FIO_OPT_C_IO,
3528                 .group  = FIO_OPT_G_RATE,
3529         },
3530         {
3531                 .name   = "rate_process",
3532                 .lname  = "Rate Process",
3533                 .type   = FIO_OPT_STR,
3534                 .off1   = offsetof(struct thread_options, rate_process),
3535                 .help   = "What process controls how rated IO is managed",
3536                 .def    = "linear",
3537                 .category = FIO_OPT_C_IO,
3538                 .group  = FIO_OPT_G_RATE,
3539                 .posval = {
3540                           { .ival = "linear",
3541                             .oval = RATE_PROCESS_LINEAR,
3542                             .help = "Linear rate of IO",
3543                           },
3544                           {
3545                             .ival = "poisson",
3546                             .oval = RATE_PROCESS_POISSON,
3547                             .help = "Rate follows Poisson process",
3548                           },
3549                 },
3550                 .parent = "rate",
3551         },
3552         {
3553                 .name   = "rate_cycle",
3554                 .alias  = "ratecycle",
3555                 .lname  = "I/O rate cycle",
3556                 .type   = FIO_OPT_INT,
3557                 .off1   = offsetof(struct thread_options, ratecycle),
3558                 .help   = "Window average for rate limits (msec)",
3559                 .def    = "1000",
3560                 .parent = "rate",
3561                 .hide   = 1,
3562                 .category = FIO_OPT_C_IO,
3563                 .group  = FIO_OPT_G_RATE,
3564         },
3565         {
3566                 .name   = "rate_ignore_thinktime",
3567                 .lname  = "Rate ignore thinktime",
3568                 .type   = FIO_OPT_BOOL,
3569                 .off1   = offsetof(struct thread_options, rate_ign_think),
3570                 .help   = "Rated IO ignores thinktime settings",
3571                 .parent = "rate",
3572                 .category = FIO_OPT_C_IO,
3573                 .group  = FIO_OPT_G_RATE,
3574         },
3575         {
3576                 .name   = "max_latency",
3577                 .lname  = "Max Latency (usec)",
3578                 .type   = FIO_OPT_STR_VAL_TIME,
3579                 .off1   = offsetof(struct thread_options, max_latency),
3580                 .help   = "Maximum tolerated IO latency (usec)",
3581                 .is_time = 1,
3582                 .category = FIO_OPT_C_IO,
3583                 .group = FIO_OPT_G_LATPROF,
3584         },
3585         {
3586                 .name   = "latency_target",
3587                 .lname  = "Latency Target (usec)",
3588                 .type   = FIO_OPT_STR_VAL_TIME,
3589                 .off1   = offsetof(struct thread_options, latency_target),
3590                 .help   = "Ramp to max queue depth supporting this latency",
3591                 .is_time = 1,
3592                 .category = FIO_OPT_C_IO,
3593                 .group  = FIO_OPT_G_LATPROF,
3594         },
3595         {
3596                 .name   = "latency_window",
3597                 .lname  = "Latency Window (usec)",
3598                 .type   = FIO_OPT_STR_VAL_TIME,
3599                 .off1   = offsetof(struct thread_options, latency_window),
3600                 .help   = "Time to sustain latency_target",
3601                 .is_time = 1,
3602                 .category = FIO_OPT_C_IO,
3603                 .group  = FIO_OPT_G_LATPROF,
3604         },
3605         {
3606                 .name   = "latency_percentile",
3607                 .lname  = "Latency Percentile",
3608                 .type   = FIO_OPT_FLOAT_LIST,
3609                 .off1   = offsetof(struct thread_options, latency_percentile),
3610                 .help   = "Percentile of IOs must be below latency_target",
3611                 .def    = "100",
3612                 .maxlen = 1,
3613                 .minfp  = 0.0,
3614                 .maxfp  = 100.0,
3615                 .category = FIO_OPT_C_IO,
3616                 .group  = FIO_OPT_G_LATPROF,
3617         },
3618         {
3619                 .name   = "invalidate",
3620                 .lname  = "Cache invalidate",
3621                 .type   = FIO_OPT_BOOL,
3622                 .off1   = offsetof(struct thread_options, invalidate_cache),
3623                 .help   = "Invalidate buffer/page cache prior to running job",
3624                 .def    = "1",
3625                 .category = FIO_OPT_C_IO,
3626                 .group  = FIO_OPT_G_IO_TYPE,
3627         },
3628         {
3629                 .name   = "sync",
3630                 .lname  = "Synchronous I/O",
3631                 .type   = FIO_OPT_BOOL,
3632                 .off1   = offsetof(struct thread_options, sync_io),
3633                 .help   = "Use O_SYNC for buffered writes",
3634                 .def    = "0",
3635                 .parent = "buffered",
3636                 .hide   = 1,
3637                 .category = FIO_OPT_C_IO,
3638                 .group  = FIO_OPT_G_IO_TYPE,
3639         },
3640 #ifdef FIO_HAVE_WRITE_HINT
3641         {
3642                 .name   = "write_hint",
3643                 .lname  = "Write hint",
3644                 .type   = FIO_OPT_STR,
3645                 .off1   = offsetof(struct thread_options, write_hint),
3646                 .help   = "Set expected write life time",
3647                 .category = FIO_OPT_C_ENGINE,
3648                 .group  = FIO_OPT_G_INVALID,
3649                 .posval = {
3650                           { .ival = "none",
3651                             .oval = RWH_WRITE_LIFE_NONE,
3652                           },
3653                           { .ival = "short",
3654                             .oval = RWH_WRITE_LIFE_SHORT,
3655                           },
3656                           { .ival = "medium",
3657                             .oval = RWH_WRITE_LIFE_MEDIUM,
3658                           },
3659                           { .ival = "long",
3660                             .oval = RWH_WRITE_LIFE_LONG,
3661                           },
3662                           { .ival = "extreme",
3663                             .oval = RWH_WRITE_LIFE_EXTREME,
3664                           },
3665                 },
3666         },
3667 #endif
3668         {
3669                 .name   = "create_serialize",
3670                 .lname  = "Create serialize",
3671                 .type   = FIO_OPT_BOOL,
3672                 .off1   = offsetof(struct thread_options, create_serialize),
3673                 .help   = "Serialize creation of job files",
3674                 .def    = "1",
3675                 .category = FIO_OPT_C_FILE,
3676                 .group  = FIO_OPT_G_INVALID,
3677         },
3678         {
3679                 .name   = "create_fsync",
3680                 .lname  = "Create fsync",
3681                 .type   = FIO_OPT_BOOL,
3682                 .off1   = offsetof(struct thread_options, create_fsync),
3683                 .help   = "fsync file after creation",
3684                 .def    = "1",
3685                 .category = FIO_OPT_C_FILE,
3686                 .group  = FIO_OPT_G_INVALID,
3687         },
3688         {
3689                 .name   = "create_on_open",
3690                 .lname  = "Create on open",
3691                 .type   = FIO_OPT_BOOL,
3692                 .off1   = offsetof(struct thread_options, create_on_open),
3693                 .help   = "Create files when they are opened for IO",
3694                 .def    = "0",
3695                 .category = FIO_OPT_C_FILE,
3696                 .group  = FIO_OPT_G_INVALID,
3697         },
3698         {
3699                 .name   = "create_only",
3700                 .lname  = "Create Only",
3701                 .type   = FIO_OPT_BOOL,
3702                 .off1   = offsetof(struct thread_options, create_only),
3703                 .help   = "Only perform file creation phase",
3704                 .category = FIO_OPT_C_FILE,
3705                 .def    = "0",
3706         },
3707         {
3708                 .name   = "allow_file_create",
3709                 .lname  = "Allow file create",
3710                 .type   = FIO_OPT_BOOL,
3711                 .off1   = offsetof(struct thread_options, allow_create),
3712                 .help   = "Permit fio to create files, if they don't exist",
3713                 .def    = "1",
3714                 .category = FIO_OPT_C_FILE,
3715                 .group  = FIO_OPT_G_FILENAME,
3716         },
3717         {
3718                 .name   = "allow_mounted_write",
3719                 .lname  = "Allow mounted write",
3720                 .type   = FIO_OPT_BOOL,
3721                 .off1   = offsetof(struct thread_options, allow_mounted_write),
3722                 .help   = "Allow writes to a mounted partition",
3723                 .def    = "0",
3724                 .category = FIO_OPT_C_FILE,
3725                 .group  = FIO_OPT_G_FILENAME,
3726         },
3727         {
3728                 .name   = "pre_read",
3729                 .lname  = "Pre-read files",
3730                 .type   = FIO_OPT_BOOL,
3731                 .off1   = offsetof(struct thread_options, pre_read),
3732                 .help   = "Pre-read files before starting official testing",
3733                 .def    = "0",
3734                 .category = FIO_OPT_C_FILE,
3735                 .group  = FIO_OPT_G_INVALID,
3736         },
3737 #ifdef FIO_HAVE_CPU_AFFINITY
3738         {
3739                 .name   = "cpumask",
3740                 .lname  = "CPU mask",
3741                 .type   = FIO_OPT_INT,
3742                 .cb     = str_cpumask_cb,
3743                 .off1   = offsetof(struct thread_options, cpumask),
3744                 .help   = "CPU affinity mask",
3745                 .category = FIO_OPT_C_GENERAL,
3746                 .group  = FIO_OPT_G_CRED,
3747         },
3748         {
3749                 .name   = "cpus_allowed",
3750                 .lname  = "CPUs allowed",
3751                 .type   = FIO_OPT_STR,
3752                 .cb     = str_cpus_allowed_cb,
3753                 .off1   = offsetof(struct thread_options, cpumask),
3754                 .help   = "Set CPUs allowed",
3755                 .category = FIO_OPT_C_GENERAL,
3756                 .group  = FIO_OPT_G_CRED,
3757         },
3758         {
3759                 .name   = "cpus_allowed_policy",
3760                 .lname  = "CPUs allowed distribution policy",
3761                 .type   = FIO_OPT_STR,
3762                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
3763                 .help   = "Distribution policy for cpus_allowed",
3764                 .parent = "cpus_allowed",
3765                 .prio   = 1,
3766                 .posval = {
3767                           { .ival = "shared",
3768                             .oval = FIO_CPUS_SHARED,
3769                             .help = "Mask shared between threads",
3770                           },
3771                           { .ival = "split",
3772                             .oval = FIO_CPUS_SPLIT,
3773                             .help = "Mask split between threads",
3774                           },
3775                 },
3776                 .category = FIO_OPT_C_GENERAL,
3777                 .group  = FIO_OPT_G_CRED,
3778         },
3779 #else
3780         {
3781                 .name   = "cpumask",
3782                 .lname  = "CPU mask",
3783                 .type   = FIO_OPT_UNSUPPORTED,
3784                 .help   = "Your platform does not support CPU affinities",
3785         },
3786         {
3787                 .name   = "cpus_allowed",
3788                 .lname  = "CPUs allowed",
3789                 .type   = FIO_OPT_UNSUPPORTED,
3790                 .help   = "Your platform does not support CPU affinities",
3791         },
3792         {
3793                 .name   = "cpus_allowed_policy",
3794                 .lname  = "CPUs allowed distribution policy",
3795                 .type   = FIO_OPT_UNSUPPORTED,
3796                 .help   = "Your platform does not support CPU affinities",
3797         },
3798 #endif
3799 #ifdef CONFIG_LIBNUMA
3800         {
3801                 .name   = "numa_cpu_nodes",
3802                 .lname  = "NUMA CPU Nodes",
3803                 .type   = FIO_OPT_STR,
3804                 .cb     = str_numa_cpunodes_cb,
3805                 .off1   = offsetof(struct thread_options, numa_cpunodes),
3806                 .help   = "NUMA CPU nodes bind",
3807                 .category = FIO_OPT_C_GENERAL,
3808                 .group  = FIO_OPT_G_INVALID,
3809         },
3810         {
3811                 .name   = "numa_mem_policy",
3812                 .lname  = "NUMA Memory Policy",
3813                 .type   = FIO_OPT_STR,
3814                 .cb     = str_numa_mpol_cb,
3815                 .off1   = offsetof(struct thread_options, numa_memnodes),
3816                 .help   = "NUMA memory policy setup",
3817                 .category = FIO_OPT_C_GENERAL,
3818                 .group  = FIO_OPT_G_INVALID,
3819         },
3820 #else
3821         {
3822                 .name   = "numa_cpu_nodes",
3823                 .lname  = "NUMA CPU Nodes",
3824                 .type   = FIO_OPT_UNSUPPORTED,
3825                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3826         },
3827         {
3828                 .name   = "numa_mem_policy",
3829                 .lname  = "NUMA Memory Policy",
3830                 .type   = FIO_OPT_UNSUPPORTED,
3831                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3832         },
3833 #endif
3834 #ifdef CONFIG_CUDA
3835         {
3836                 .name   = "gpu_dev_id",
3837                 .lname  = "GPU device ID",
3838                 .type   = FIO_OPT_INT,
3839                 .off1   = offsetof(struct thread_options, gpu_dev_id),
3840                 .help   = "Set GPU device ID for GPUDirect RDMA",
3841                 .def    = "0",
3842                 .category = FIO_OPT_C_GENERAL,
3843                 .group  = FIO_OPT_G_INVALID,
3844         },
3845 #endif
3846         {
3847                 .name   = "end_fsync",
3848                 .lname  = "End fsync",
3849                 .type   = FIO_OPT_BOOL,
3850                 .off1   = offsetof(struct thread_options, end_fsync),
3851                 .help   = "Include fsync at the end of job",
3852                 .def    = "0",
3853                 .category = FIO_OPT_C_FILE,
3854                 .group  = FIO_OPT_G_INVALID,
3855         },
3856         {
3857                 .name   = "fsync_on_close",
3858                 .lname  = "Fsync on close",
3859                 .type   = FIO_OPT_BOOL,
3860                 .off1   = offsetof(struct thread_options, fsync_on_close),
3861                 .help   = "fsync files on close",
3862                 .def    = "0",
3863                 .category = FIO_OPT_C_FILE,
3864                 .group  = FIO_OPT_G_INVALID,
3865         },
3866         {
3867                 .name   = "unlink",
3868                 .lname  = "Unlink file",
3869                 .type   = FIO_OPT_BOOL,
3870                 .off1   = offsetof(struct thread_options, unlink),
3871                 .help   = "Unlink created files after job has completed",
3872                 .def    = "0",
3873                 .category = FIO_OPT_C_FILE,
3874                 .group  = FIO_OPT_G_INVALID,
3875         },
3876         {
3877                 .name   = "unlink_each_loop",
3878                 .lname  = "Unlink file after each loop of a job",
3879                 .type   = FIO_OPT_BOOL,
3880                 .off1   = offsetof(struct thread_options, unlink_each_loop),
3881                 .help   = "Unlink created files after each loop in a job has completed",
3882                 .def    = "0",
3883                 .category = FIO_OPT_C_FILE,
3884                 .group  = FIO_OPT_G_INVALID,
3885         },
3886         {
3887                 .name   = "exitall",
3888                 .lname  = "Exit-all on terminate",
3889                 .type   = FIO_OPT_STR_SET,
3890                 .cb     = str_exitall_cb,
3891                 .help   = "Terminate all jobs when one exits",
3892                 .category = FIO_OPT_C_GENERAL,
3893                 .group  = FIO_OPT_G_PROCESS,
3894         },
3895         {
3896                 .name   = "exitall_on_error",
3897                 .lname  = "Exit-all on terminate in error",
3898                 .type   = FIO_OPT_STR_SET,
3899                 .off1   = offsetof(struct thread_options, exitall_error),
3900                 .help   = "Terminate all jobs when one exits in error",
3901                 .category = FIO_OPT_C_GENERAL,
3902                 .group  = FIO_OPT_G_PROCESS,
3903         },
3904         {
3905                 .name   = "stonewall",
3906                 .lname  = "Wait for previous",
3907                 .alias  = "wait_for_previous",
3908                 .type   = FIO_OPT_STR_SET,
3909                 .off1   = offsetof(struct thread_options, stonewall),
3910                 .help   = "Insert a hard barrier between this job and previous",
3911                 .category = FIO_OPT_C_GENERAL,
3912                 .group  = FIO_OPT_G_PROCESS,
3913         },
3914         {
3915                 .name   = "new_group",
3916                 .lname  = "New group",
3917                 .type   = FIO_OPT_STR_SET,
3918                 .off1   = offsetof(struct thread_options, new_group),
3919                 .help   = "Mark the start of a new group (for reporting)",
3920                 .category = FIO_OPT_C_GENERAL,
3921                 .group  = FIO_OPT_G_PROCESS,
3922         },
3923         {
3924                 .name   = "thread",
3925                 .lname  = "Thread",
3926                 .type   = FIO_OPT_STR_SET,
3927                 .off1   = offsetof(struct thread_options, use_thread),
3928                 .help   = "Use threads instead of processes",
3929 #ifdef CONFIG_NO_SHM
3930                 .def    = "1",
3931                 .no_warn_def = 1,
3932 #endif
3933                 .category = FIO_OPT_C_GENERAL,
3934                 .group  = FIO_OPT_G_PROCESS,
3935         },
3936         {
3937                 .name   = "per_job_logs",
3938                 .lname  = "Per Job Logs",
3939                 .type   = FIO_OPT_BOOL,
3940                 .off1   = offsetof(struct thread_options, per_job_logs),
3941                 .help   = "Include job number in generated log files or not",
3942                 .def    = "1",
3943                 .category = FIO_OPT_C_LOG,
3944                 .group  = FIO_OPT_G_INVALID,
3945         },
3946         {
3947                 .name   = "write_bw_log",
3948                 .lname  = "Write bandwidth log",
3949                 .type   = FIO_OPT_STR,
3950                 .off1   = offsetof(struct thread_options, bw_log_file),
3951                 .cb     = str_write_bw_log_cb,
3952                 .help   = "Write log of bandwidth during run",
3953                 .category = FIO_OPT_C_LOG,
3954                 .group  = FIO_OPT_G_INVALID,
3955         },
3956         {
3957                 .name   = "write_lat_log",
3958                 .lname  = "Write latency log",
3959                 .type   = FIO_OPT_STR,
3960                 .off1   = offsetof(struct thread_options, lat_log_file),
3961                 .cb     = str_write_lat_log_cb,
3962                 .help   = "Write log of latency during run",
3963                 .category = FIO_OPT_C_LOG,
3964                 .group  = FIO_OPT_G_INVALID,
3965         },
3966         {
3967                 .name   = "write_iops_log",
3968                 .lname  = "Write IOPS log",
3969                 .type   = FIO_OPT_STR,
3970                 .off1   = offsetof(struct thread_options, iops_log_file),
3971                 .cb     = str_write_iops_log_cb,
3972                 .help   = "Write log of IOPS during run",
3973                 .category = FIO_OPT_C_LOG,
3974                 .group  = FIO_OPT_G_INVALID,
3975         },
3976         {
3977                 .name   = "log_avg_msec",
3978                 .lname  = "Log averaging (msec)",
3979                 .type   = FIO_OPT_INT,
3980                 .off1   = offsetof(struct thread_options, log_avg_msec),
3981                 .help   = "Average bw/iops/lat logs over this period of time",
3982                 .def    = "0",
3983                 .category = FIO_OPT_C_LOG,
3984                 .group  = FIO_OPT_G_INVALID,
3985         },
3986         {
3987                 .name   = "log_hist_msec",
3988                 .lname  = "Log histograms (msec)",
3989                 .type   = FIO_OPT_INT,
3990                 .off1   = offsetof(struct thread_options, log_hist_msec),
3991                 .help   = "Dump completion latency histograms at frequency of this time value",
3992                 .def    = "0",
3993                 .category = FIO_OPT_C_LOG,
3994                 .group  = FIO_OPT_G_INVALID,
3995         },
3996         {
3997                 .name   = "log_hist_coarseness",
3998                 .lname  = "Histogram logs coarseness",
3999                 .type   = FIO_OPT_INT,
4000                 .off1   = offsetof(struct thread_options, log_hist_coarseness),
4001                 .help   = "Integer in range [0,6]. Higher coarseness outputs"
4002                         " fewer histogram bins per sample. The number of bins for"
4003                         " these are [1216, 608, 304, 152, 76, 38, 19] respectively.",
4004                 .def    = "0",
4005                 .category = FIO_OPT_C_LOG,
4006                 .group  = FIO_OPT_G_INVALID,
4007         },
4008         {
4009                 .name   = "write_hist_log",
4010                 .lname  = "Write latency histogram logs",
4011                 .type   = FIO_OPT_STR,
4012                 .off1   = offsetof(struct thread_options, hist_log_file),
4013                 .cb     = str_write_hist_log_cb,
4014                 .help   = "Write log of latency histograms during run",
4015                 .category = FIO_OPT_C_LOG,
4016                 .group  = FIO_OPT_G_INVALID,
4017         },
4018         {
4019                 .name   = "log_max_value",
4020                 .lname  = "Log maximum instead of average",
4021                 .type   = FIO_OPT_BOOL,
4022                 .off1   = offsetof(struct thread_options, log_max),
4023                 .help   = "Log max sample in a window instead of average",
4024                 .def    = "0",
4025                 .category = FIO_OPT_C_LOG,
4026                 .group  = FIO_OPT_G_INVALID,
4027         },
4028         {
4029                 .name   = "log_offset",
4030                 .lname  = "Log offset of IO",
4031                 .type   = FIO_OPT_BOOL,
4032                 .off1   = offsetof(struct thread_options, log_offset),
4033                 .help   = "Include offset of IO for each log entry",
4034                 .def    = "0",
4035                 .category = FIO_OPT_C_LOG,
4036                 .group  = FIO_OPT_G_INVALID,
4037         },
4038 #ifdef CONFIG_ZLIB
4039         {
4040                 .name   = "log_compression",
4041                 .lname  = "Log compression",
4042                 .type   = FIO_OPT_INT,
4043                 .off1   = offsetof(struct thread_options, log_gz),
4044                 .help   = "Log in compressed chunks of this size",
4045                 .minval = 1024ULL,
4046                 .maxval = 512 * 1024 * 1024ULL,
4047                 .category = FIO_OPT_C_LOG,
4048                 .group  = FIO_OPT_G_INVALID,
4049         },
4050 #ifdef FIO_HAVE_CPU_AFFINITY
4051         {
4052                 .name   = "log_compression_cpus",
4053                 .lname  = "Log Compression CPUs",
4054                 .type   = FIO_OPT_STR,
4055                 .cb     = str_log_cpus_allowed_cb,
4056                 .off1   = offsetof(struct thread_options, log_gz_cpumask),
4057                 .parent = "log_compression",
4058                 .help   = "Limit log compression to these CPUs",
4059                 .category = FIO_OPT_C_LOG,
4060                 .group  = FIO_OPT_G_INVALID,
4061         },
4062 #else
4063         {
4064                 .name   = "log_compression_cpus",
4065                 .lname  = "Log Compression CPUs",
4066                 .type   = FIO_OPT_UNSUPPORTED,
4067                 .help   = "Your platform does not support CPU affinities",
4068         },
4069 #endif
4070         {
4071                 .name   = "log_store_compressed",
4072                 .lname  = "Log store compressed",
4073                 .type   = FIO_OPT_BOOL,
4074                 .off1   = offsetof(struct thread_options, log_gz_store),
4075                 .help   = "Store logs in a compressed format",
4076                 .category = FIO_OPT_C_LOG,
4077                 .group  = FIO_OPT_G_INVALID,
4078         },
4079 #else
4080         {
4081                 .name   = "log_compression",
4082                 .lname  = "Log compression",
4083                 .type   = FIO_OPT_UNSUPPORTED,
4084                 .help   = "Install libz-dev(el) to get compression support",
4085         },
4086         {
4087                 .name   = "log_store_compressed",
4088                 .lname  = "Log store compressed",
4089                 .type   = FIO_OPT_UNSUPPORTED,
4090                 .help   = "Install libz-dev(el) to get compression support",
4091         },
4092 #endif
4093         {
4094                 .name = "log_unix_epoch",
4095                 .lname = "Log epoch unix",
4096                 .type = FIO_OPT_BOOL,
4097                 .off1 = offsetof(struct thread_options, log_unix_epoch),
4098                 .help = "Use Unix time in log files",
4099                 .category = FIO_OPT_C_LOG,
4100                 .group = FIO_OPT_G_INVALID,
4101         },
4102         {
4103                 .name   = "block_error_percentiles",
4104                 .lname  = "Block error percentiles",
4105                 .type   = FIO_OPT_BOOL,
4106                 .off1   = offsetof(struct thread_options, block_error_hist),
4107                 .help   = "Record trim block errors and make a histogram",
4108                 .def    = "0",
4109                 .category = FIO_OPT_C_LOG,
4110                 .group  = FIO_OPT_G_INVALID,
4111         },
4112         {
4113                 .name   = "bwavgtime",
4114                 .lname  = "Bandwidth average time",
4115                 .type   = FIO_OPT_INT,
4116                 .off1   = offsetof(struct thread_options, bw_avg_time),
4117                 .help   = "Time window over which to calculate bandwidth"
4118                           " (msec)",
4119                 .def    = "500",
4120                 .parent = "write_bw_log",
4121                 .hide   = 1,
4122                 .interval = 100,
4123                 .category = FIO_OPT_C_LOG,
4124                 .group  = FIO_OPT_G_INVALID,
4125         },
4126         {
4127                 .name   = "iopsavgtime",
4128                 .lname  = "IOPS average time",
4129                 .type   = FIO_OPT_INT,
4130                 .off1   = offsetof(struct thread_options, iops_avg_time),
4131                 .help   = "Time window over which to calculate IOPS (msec)",
4132                 .def    = "500",
4133                 .parent = "write_iops_log",
4134                 .hide   = 1,
4135                 .interval = 100,
4136                 .category = FIO_OPT_C_LOG,
4137                 .group  = FIO_OPT_G_INVALID,
4138         },
4139         {
4140                 .name   = "group_reporting",
4141                 .lname  = "Group reporting",
4142                 .type   = FIO_OPT_STR_SET,
4143                 .off1   = offsetof(struct thread_options, group_reporting),
4144                 .help   = "Do reporting on a per-group basis",
4145                 .category = FIO_OPT_C_STAT,
4146                 .group  = FIO_OPT_G_INVALID,
4147         },
4148         {
4149                 .name   = "stats",
4150                 .lname  = "Stats",
4151                 .type   = FIO_OPT_BOOL,
4152                 .off1   = offsetof(struct thread_options, stats),
4153                 .help   = "Enable collection of stats",
4154                 .def    = "1",
4155                 .category = FIO_OPT_C_STAT,
4156                 .group  = FIO_OPT_G_INVALID,
4157         },
4158         {
4159                 .name   = "zero_buffers",
4160                 .lname  = "Zero I/O buffers",
4161                 .type   = FIO_OPT_STR_SET,
4162                 .off1   = offsetof(struct thread_options, zero_buffers),
4163                 .help   = "Init IO buffers to all zeroes",
4164                 .category = FIO_OPT_C_IO,
4165                 .group  = FIO_OPT_G_IO_BUF,
4166         },
4167         {
4168                 .name   = "refill_buffers",
4169                 .lname  = "Refill I/O buffers",
4170                 .type   = FIO_OPT_STR_SET,
4171                 .off1   = offsetof(struct thread_options, refill_buffers),
4172                 .help   = "Refill IO buffers on every IO submit",
4173                 .category = FIO_OPT_C_IO,
4174                 .group  = FIO_OPT_G_IO_BUF,
4175         },
4176         {
4177                 .name   = "scramble_buffers",
4178                 .lname  = "Scramble I/O buffers",
4179                 .type   = FIO_OPT_BOOL,
4180                 .off1   = offsetof(struct thread_options, scramble_buffers),
4181                 .help   = "Slightly scramble buffers on every IO submit",
4182                 .def    = "1",
4183                 .category = FIO_OPT_C_IO,
4184                 .group  = FIO_OPT_G_IO_BUF,
4185         },
4186         {
4187                 .name   = "buffer_pattern",
4188                 .lname  = "Buffer pattern",
4189                 .type   = FIO_OPT_STR,
4190                 .cb     = str_buffer_pattern_cb,
4191                 .off1   = offsetof(struct thread_options, buffer_pattern),
4192                 .help   = "Fill pattern for IO buffers",
4193                 .category = FIO_OPT_C_IO,
4194                 .group  = FIO_OPT_G_IO_BUF,
4195         },
4196         {
4197                 .name   = "buffer_compress_percentage",
4198                 .lname  = "Buffer compression percentage",
4199                 .type   = FIO_OPT_INT,
4200                 .cb     = str_buffer_compress_cb,
4201                 .off1   = offsetof(struct thread_options, compress_percentage),
4202                 .maxval = 100,
4203                 .minval = 0,
4204                 .help   = "How compressible the buffer is (approximately)",
4205                 .interval = 5,
4206                 .category = FIO_OPT_C_IO,
4207                 .group  = FIO_OPT_G_IO_BUF,
4208         },
4209         {
4210                 .name   = "buffer_compress_chunk",
4211                 .lname  = "Buffer compression chunk size",
4212                 .type   = FIO_OPT_INT,
4213                 .off1   = offsetof(struct thread_options, compress_chunk),
4214                 .parent = "buffer_compress_percentage",
4215                 .hide   = 1,
4216                 .help   = "Size of compressible region in buffer",
4217                 .def    = "512",
4218                 .interval = 256,
4219                 .category = FIO_OPT_C_IO,
4220                 .group  = FIO_OPT_G_IO_BUF,
4221         },
4222         {
4223                 .name   = "dedupe_percentage",
4224                 .lname  = "Dedupe percentage",
4225                 .type   = FIO_OPT_INT,
4226                 .cb     = str_dedupe_cb,
4227                 .off1   = offsetof(struct thread_options, dedupe_percentage),
4228                 .maxval = 100,
4229                 .minval = 0,
4230                 .help   = "Percentage of buffers that are dedupable",
4231                 .interval = 1,
4232                 .category = FIO_OPT_C_IO,
4233                 .group  = FIO_OPT_G_IO_BUF,
4234         },
4235         {
4236                 .name   = "clat_percentiles",
4237                 .lname  = "Completion latency percentiles",
4238                 .type   = FIO_OPT_BOOL,
4239                 .off1   = offsetof(struct thread_options, clat_percentiles),
4240                 .help   = "Enable the reporting of completion latency percentiles",
4241                 .def    = "1",
4242                 .inverse = "lat_percentiles",
4243                 .category = FIO_OPT_C_STAT,
4244                 .group  = FIO_OPT_G_INVALID,
4245         },
4246         {
4247                 .name   = "lat_percentiles",
4248                 .lname  = "IO latency percentiles",
4249                 .type   = FIO_OPT_BOOL,
4250                 .off1   = offsetof(struct thread_options, lat_percentiles),
4251                 .help   = "Enable the reporting of IO latency percentiles",
4252                 .def    = "0",
4253                 .inverse = "clat_percentiles",
4254                 .category = FIO_OPT_C_STAT,
4255                 .group  = FIO_OPT_G_INVALID,
4256         },
4257         {
4258                 .name   = "percentile_list",
4259                 .lname  = "Percentile list",
4260                 .type   = FIO_OPT_FLOAT_LIST,
4261                 .off1   = offsetof(struct thread_options, percentile_list),
4262                 .off2   = offsetof(struct thread_options, percentile_precision),
4263                 .help   = "Specify a custom list of percentiles to report for "
4264                           "completion latency and block errors",
4265                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
4266                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
4267                 .minfp  = 0.0,
4268                 .maxfp  = 100.0,
4269                 .category = FIO_OPT_C_STAT,
4270                 .group  = FIO_OPT_G_INVALID,
4271         },
4272         {
4273                 .name   = "significant_figures",
4274                 .lname  = "Significant figures",
4275                 .type   = FIO_OPT_INT,
4276                 .off1   = offsetof(struct thread_options, sig_figs),
4277                 .maxval = 10,
4278                 .minval = 1,
4279                 .help   = "Significant figures for output-format set to normal",
4280                 .def    = "4",
4281                 .interval = 1,
4282                 .category = FIO_OPT_C_STAT,
4283                 .group  = FIO_OPT_G_INVALID,
4284         },
4285
4286 #ifdef FIO_HAVE_DISK_UTIL
4287         {
4288                 .name   = "disk_util",
4289                 .lname  = "Disk utilization",
4290                 .type   = FIO_OPT_BOOL,
4291                 .off1   = offsetof(struct thread_options, do_disk_util),
4292                 .help   = "Log disk utilization statistics",
4293                 .def    = "1",
4294                 .category = FIO_OPT_C_STAT,
4295                 .group  = FIO_OPT_G_INVALID,
4296         },
4297 #else
4298         {
4299                 .name   = "disk_util",
4300                 .lname  = "Disk utilization",
4301                 .type   = FIO_OPT_UNSUPPORTED,
4302                 .help   = "Your platform does not support disk utilization",
4303         },
4304 #endif
4305         {
4306                 .name   = "gtod_reduce",
4307                 .lname  = "Reduce gettimeofday() calls",
4308                 .type   = FIO_OPT_BOOL,
4309                 .help   = "Greatly reduce number of gettimeofday() calls",
4310                 .cb     = str_gtod_reduce_cb,
4311                 .def    = "0",
4312                 .hide_on_set = 1,
4313                 .category = FIO_OPT_C_STAT,
4314                 .group  = FIO_OPT_G_INVALID,
4315         },
4316         {
4317                 .name   = "disable_lat",
4318                 .lname  = "Disable all latency stats",
4319                 .type   = FIO_OPT_BOOL,
4320                 .off1   = offsetof(struct thread_options, disable_lat),
4321                 .help   = "Disable latency numbers",
4322                 .parent = "gtod_reduce",
4323                 .hide   = 1,
4324                 .def    = "0",
4325                 .category = FIO_OPT_C_STAT,
4326                 .group  = FIO_OPT_G_INVALID,
4327         },
4328         {
4329                 .name   = "disable_clat",
4330                 .lname  = "Disable completion latency stats",
4331                 .type   = FIO_OPT_BOOL,
4332                 .off1   = offsetof(struct thread_options, disable_clat),
4333                 .help   = "Disable completion latency numbers",
4334                 .parent = "gtod_reduce",
4335                 .hide   = 1,
4336                 .def    = "0",
4337                 .category = FIO_OPT_C_STAT,
4338                 .group  = FIO_OPT_G_INVALID,
4339         },
4340         {
4341                 .name   = "disable_slat",
4342                 .lname  = "Disable submission latency stats",
4343                 .type   = FIO_OPT_BOOL,
4344                 .off1   = offsetof(struct thread_options, disable_slat),
4345                 .help   = "Disable submission latency numbers",
4346                 .parent = "gtod_reduce",
4347                 .hide   = 1,
4348                 .def    = "0",
4349                 .category = FIO_OPT_C_STAT,
4350                 .group  = FIO_OPT_G_INVALID,
4351         },
4352         {
4353                 .name   = "disable_bw_measurement",
4354                 .alias  = "disable_bw",
4355                 .lname  = "Disable bandwidth stats",
4356                 .type   = FIO_OPT_BOOL,
4357                 .off1   = offsetof(struct thread_options, disable_bw),
4358                 .help   = "Disable bandwidth logging",
4359                 .parent = "gtod_reduce",
4360                 .hide   = 1,
4361                 .def    = "0",
4362                 .category = FIO_OPT_C_STAT,
4363                 .group  = FIO_OPT_G_INVALID,
4364         },
4365         {
4366                 .name   = "gtod_cpu",
4367                 .lname  = "Dedicated gettimeofday() CPU",
4368                 .type   = FIO_OPT_INT,
4369                 .off1   = offsetof(struct thread_options, gtod_cpu),
4370                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
4371                 .verify = gtod_cpu_verify,
4372                 .category = FIO_OPT_C_GENERAL,
4373                 .group  = FIO_OPT_G_CLOCK,
4374         },
4375         {
4376                 .name   = "unified_rw_reporting",
4377                 .lname  = "Unified RW Reporting",
4378                 .type   = FIO_OPT_BOOL,
4379                 .off1   = offsetof(struct thread_options, unified_rw_rep),
4380                 .help   = "Unify reporting across data direction",
4381                 .def    = "0",
4382                 .category = FIO_OPT_C_GENERAL,
4383                 .group  = FIO_OPT_G_INVALID,
4384         },
4385         {
4386                 .name   = "continue_on_error",
4387                 .lname  = "Continue on error",
4388                 .type   = FIO_OPT_STR,
4389                 .off1   = offsetof(struct thread_options, continue_on_error),
4390                 .help   = "Continue on non-fatal errors during IO",
4391                 .def    = "none",
4392                 .category = FIO_OPT_C_GENERAL,
4393                 .group  = FIO_OPT_G_ERR,
4394                 .posval = {
4395                           { .ival = "none",
4396                             .oval = ERROR_TYPE_NONE,
4397                             .help = "Exit when an error is encountered",
4398                           },
4399                           { .ival = "read",
4400                             .oval = ERROR_TYPE_READ,
4401                             .help = "Continue on read errors only",
4402                           },
4403                           { .ival = "write",
4404                             .oval = ERROR_TYPE_WRITE,
4405                             .help = "Continue on write errors only",
4406                           },
4407                           { .ival = "io",
4408                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
4409                             .help = "Continue on any IO errors",
4410                           },
4411                           { .ival = "verify",
4412                             .oval = ERROR_TYPE_VERIFY,
4413                             .help = "Continue on verify errors only",
4414                           },
4415                           { .ival = "all",
4416                             .oval = ERROR_TYPE_ANY,
4417                             .help = "Continue on all io and verify errors",
4418                           },
4419                           { .ival = "0",
4420                             .oval = ERROR_TYPE_NONE,
4421                             .help = "Alias for 'none'",
4422                           },
4423                           { .ival = "1",
4424                             .oval = ERROR_TYPE_ANY,
4425                             .help = "Alias for 'all'",
4426                           },
4427                 },
4428         },
4429         {
4430                 .name   = "ignore_error",
4431                 .lname  = "Ignore Error",
4432                 .type   = FIO_OPT_STR,
4433                 .cb     = str_ignore_error_cb,
4434                 .off1   = offsetof(struct thread_options, ignore_error_nr),
4435                 .help   = "Set a specific list of errors to ignore",
4436                 .parent = "rw",
4437                 .category = FIO_OPT_C_GENERAL,
4438                 .group  = FIO_OPT_G_ERR,
4439         },
4440         {
4441                 .name   = "error_dump",
4442                 .lname  = "Error Dump",
4443                 .type   = FIO_OPT_BOOL,
4444                 .off1   = offsetof(struct thread_options, error_dump),
4445                 .def    = "0",
4446                 .help   = "Dump info on each error",
4447                 .category = FIO_OPT_C_GENERAL,
4448                 .group  = FIO_OPT_G_ERR,
4449         },
4450         {
4451                 .name   = "profile",
4452                 .lname  = "Profile",
4453                 .type   = FIO_OPT_STR_STORE,
4454                 .off1   = offsetof(struct thread_options, profile),
4455                 .help   = "Select a specific builtin performance test",
4456                 .category = FIO_OPT_C_PROFILE,
4457                 .group  = FIO_OPT_G_INVALID,
4458         },
4459         {
4460                 .name   = "cgroup",
4461                 .lname  = "Cgroup",
4462                 .type   = FIO_OPT_STR_STORE,
4463                 .off1   = offsetof(struct thread_options, cgroup),
4464                 .help   = "Add job to cgroup of this name",
4465                 .category = FIO_OPT_C_GENERAL,
4466                 .group  = FIO_OPT_G_CGROUP,
4467         },
4468         {
4469                 .name   = "cgroup_nodelete",
4470                 .lname  = "Cgroup no-delete",
4471                 .type   = FIO_OPT_BOOL,
4472                 .off1   = offsetof(struct thread_options, cgroup_nodelete),
4473                 .help   = "Do not delete cgroups after job completion",
4474                 .def    = "0",
4475                 .parent = "cgroup",
4476                 .category = FIO_OPT_C_GENERAL,
4477                 .group  = FIO_OPT_G_CGROUP,
4478         },
4479         {
4480                 .name   = "cgroup_weight",
4481                 .lname  = "Cgroup weight",
4482                 .type   = FIO_OPT_INT,
4483                 .off1   = offsetof(struct thread_options, cgroup_weight),
4484                 .help   = "Use given weight for cgroup",
4485                 .minval = 100,
4486                 .maxval = 1000,
4487                 .parent = "cgroup",
4488                 .category = FIO_OPT_C_GENERAL,
4489                 .group  = FIO_OPT_G_CGROUP,
4490         },
4491         {
4492                 .name   = "uid",
4493                 .lname  = "User ID",
4494                 .type   = FIO_OPT_INT,
4495                 .off1   = offsetof(struct thread_options, uid),
4496                 .help   = "Run job with this user ID",
4497                 .category = FIO_OPT_C_GENERAL,
4498                 .group  = FIO_OPT_G_CRED,
4499         },
4500         {
4501                 .name   = "gid",
4502                 .lname  = "Group ID",
4503                 .type   = FIO_OPT_INT,
4504                 .off1   = offsetof(struct thread_options, gid),
4505                 .help   = "Run job with this group ID",
4506                 .category = FIO_OPT_C_GENERAL,
4507                 .group  = FIO_OPT_G_CRED,
4508         },
4509         {
4510                 .name   = "kb_base",
4511                 .lname  = "KB Base",
4512                 .type   = FIO_OPT_INT,
4513                 .off1   = offsetof(struct thread_options, kb_base),
4514                 .prio   = 1,
4515                 .def    = "1024",
4516                 .posval = {
4517                           { .ival = "1024",
4518                             .oval = 1024,
4519                             .help = "Inputs invert IEC and SI prefixes (for compatibility); outputs prefer binary",
4520                           },
4521                           { .ival = "1000",
4522                             .oval = 1000,
4523                             .help = "Inputs use IEC and SI prefixes; outputs prefer SI",
4524                           },
4525                 },
4526                 .help   = "Unit prefix interpretation for quantities of data (IEC and SI)",
4527                 .category = FIO_OPT_C_GENERAL,
4528                 .group  = FIO_OPT_G_INVALID,
4529         },
4530         {
4531                 .name   = "unit_base",
4532                 .lname  = "Unit for quantities of data (Bits or Bytes)",
4533                 .type   = FIO_OPT_INT,
4534                 .off1   = offsetof(struct thread_options, unit_base),
4535                 .prio   = 1,
4536                 .posval = {
4537                           { .ival = "0",
4538                             .oval = N2S_NONE,
4539                             .help = "Auto-detect",
4540                           },
4541                           { .ival = "8",
4542                             .oval = N2S_BYTEPERSEC,
4543                             .help = "Normal (byte based)",
4544                           },
4545                           { .ival = "1",
4546                             .oval = N2S_BITPERSEC,
4547                             .help = "Bit based",
4548                           },
4549                 },
4550                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
4551                 .category = FIO_OPT_C_GENERAL,
4552                 .group  = FIO_OPT_G_INVALID,
4553         },
4554         {
4555                 .name   = "hugepage-size",
4556                 .lname  = "Hugepage size",
4557                 .type   = FIO_OPT_INT,
4558                 .off1   = offsetof(struct thread_options, hugepage_size),
4559                 .help   = "When using hugepages, specify size of each page",
4560                 .def    = __fio_stringify(FIO_HUGE_PAGE),
4561                 .interval = 1024 * 1024,
4562                 .category = FIO_OPT_C_GENERAL,
4563                 .group  = FIO_OPT_G_INVALID,
4564         },
4565         {
4566                 .name   = "flow_id",
4567                 .lname  = "I/O flow ID",
4568                 .type   = FIO_OPT_INT,
4569                 .off1   = offsetof(struct thread_options, flow_id),
4570                 .help   = "The flow index ID to use",
4571                 .def    = "0",
4572                 .category = FIO_OPT_C_IO,
4573                 .group  = FIO_OPT_G_IO_FLOW,
4574         },
4575         {
4576                 .name   = "flow",
4577                 .lname  = "I/O flow weight",
4578                 .type   = FIO_OPT_INT,
4579                 .off1   = offsetof(struct thread_options, flow),
4580                 .help   = "Weight for flow control of this job",
4581                 .parent = "flow_id",
4582                 .hide   = 1,
4583                 .def    = "0",
4584                 .category = FIO_OPT_C_IO,
4585                 .group  = FIO_OPT_G_IO_FLOW,
4586         },
4587         {
4588                 .name   = "flow_watermark",
4589                 .lname  = "I/O flow watermark",
4590                 .type   = FIO_OPT_INT,
4591                 .off1   = offsetof(struct thread_options, flow_watermark),
4592                 .help   = "High watermark for flow control. This option"
4593                         " should be set to the same value for all threads"
4594                         " with non-zero flow.",
4595                 .parent = "flow_id",
4596                 .hide   = 1,
4597                 .def    = "1024",
4598                 .category = FIO_OPT_C_IO,
4599                 .group  = FIO_OPT_G_IO_FLOW,
4600         },
4601         {
4602                 .name   = "flow_sleep",
4603                 .lname  = "I/O flow sleep",
4604                 .type   = FIO_OPT_INT,
4605                 .off1   = offsetof(struct thread_options, flow_sleep),
4606                 .help   = "How many microseconds to sleep after being held"
4607                         " back by the flow control mechanism",
4608                 .parent = "flow_id",
4609                 .hide   = 1,
4610                 .def    = "0",
4611                 .category = FIO_OPT_C_IO,
4612                 .group  = FIO_OPT_G_IO_FLOW,
4613         },
4614         {
4615                 .name   = "steadystate",
4616                 .lname  = "Steady state threshold",
4617                 .alias  = "ss",
4618                 .type   = FIO_OPT_STR,
4619                 .off1   = offsetof(struct thread_options, ss_state),
4620                 .cb     = str_steadystate_cb,
4621                 .help   = "Define the criterion and limit to judge when a job has reached steady state",
4622                 .def    = "iops_slope:0.01%",
4623                 .posval = {
4624                           { .ival = "iops",
4625                             .oval = FIO_SS_IOPS,
4626                             .help = "maximum mean deviation of IOPS measurements",
4627                           },
4628                           { .ival = "iops_slope",
4629                             .oval = FIO_SS_IOPS_SLOPE,
4630                             .help = "slope calculated from IOPS measurements",
4631                           },
4632                           { .ival = "bw",
4633                             .oval = FIO_SS_BW,
4634                             .help = "maximum mean deviation of bandwidth measurements",
4635                           },
4636                           {
4637                             .ival = "bw_slope",
4638                             .oval = FIO_SS_BW_SLOPE,
4639                             .help = "slope calculated from bandwidth measurements",
4640                           },
4641                 },
4642                 .category = FIO_OPT_C_GENERAL,
4643                 .group  = FIO_OPT_G_RUNTIME,
4644         },
4645         {
4646                 .name   = "steadystate_duration",
4647                 .lname  = "Steady state duration",
4648                 .alias  = "ss_dur",
4649                 .parent = "steadystate",
4650                 .type   = FIO_OPT_STR_VAL_TIME,
4651                 .off1   = offsetof(struct thread_options, ss_dur),
4652                 .help   = "Stop workload upon attaining steady state for specified duration",
4653                 .def    = "0",
4654                 .is_seconds = 1,
4655                 .is_time = 1,
4656                 .category = FIO_OPT_C_GENERAL,
4657                 .group  = FIO_OPT_G_RUNTIME,
4658         },
4659         {
4660                 .name   = "steadystate_ramp_time",
4661                 .lname  = "Steady state ramp time",
4662                 .alias  = "ss_ramp",
4663                 .parent = "steadystate",
4664                 .type   = FIO_OPT_STR_VAL_TIME,
4665                 .off1   = offsetof(struct thread_options, ss_ramp_time),
4666                 .help   = "Delay before initiation of data collection for steady state job termination testing",
4667                 .def    = "0",
4668                 .is_seconds = 1,
4669                 .is_time = 1,
4670                 .category = FIO_OPT_C_GENERAL,
4671                 .group  = FIO_OPT_G_RUNTIME,
4672         },
4673         {
4674                 .name = NULL,
4675         },
4676 };
4677
4678 static void add_to_lopt(struct option *lopt, struct fio_option *o,
4679                         const char *name, int val)
4680 {
4681         lopt->name = (char *) name;
4682         lopt->val = val;
4683         if (o->type == FIO_OPT_STR_SET)
4684                 lopt->has_arg = optional_argument;
4685         else
4686                 lopt->has_arg = required_argument;
4687 }
4688
4689 static void options_to_lopts(struct fio_option *opts,
4690                               struct option *long_options,
4691                               int i, int option_type)
4692 {
4693         struct fio_option *o = &opts[0];
4694         while (o->name) {
4695                 add_to_lopt(&long_options[i], o, o->name, option_type);
4696                 if (o->alias) {
4697                         i++;
4698                         add_to_lopt(&long_options[i], o, o->alias, option_type);
4699                 }
4700
4701                 i++;
4702                 o++;
4703                 assert(i < FIO_NR_OPTIONS);
4704         }
4705 }
4706
4707 void fio_options_set_ioengine_opts(struct option *long_options,
4708                                    struct thread_data *td)
4709 {
4710         unsigned int i;
4711
4712         i = 0;
4713         while (long_options[i].name) {
4714                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
4715                         memset(&long_options[i], 0, sizeof(*long_options));
4716                         break;
4717                 }
4718                 i++;
4719         }
4720
4721         /*
4722          * Just clear out the prior ioengine options.
4723          */
4724         if (!td || !td->eo)
4725                 return;
4726
4727         options_to_lopts(td->io_ops->options, long_options, i,
4728                          FIO_GETOPT_IOENGINE);
4729 }
4730
4731 void fio_options_dup_and_init(struct option *long_options)
4732 {
4733         unsigned int i;
4734
4735         options_init(fio_options);
4736
4737         i = 0;
4738         while (long_options[i].name)
4739                 i++;
4740
4741         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
4742 }
4743
4744 struct fio_keyword {
4745         const char *word;
4746         const char *desc;
4747         char *replace;
4748 };
4749
4750 static struct fio_keyword fio_keywords[] = {
4751         {
4752                 .word   = "$pagesize",
4753                 .desc   = "Page size in the system",
4754         },
4755         {
4756                 .word   = "$mb_memory",
4757                 .desc   = "Megabytes of memory online",
4758         },
4759         {
4760                 .word   = "$ncpus",
4761                 .desc   = "Number of CPUs online in the system",
4762         },
4763         {
4764                 .word   = NULL,
4765         },
4766 };
4767
4768 void fio_keywords_exit(void)
4769 {
4770         struct fio_keyword *kw;
4771
4772         kw = &fio_keywords[0];
4773         while (kw->word) {
4774                 free(kw->replace);
4775                 kw->replace = NULL;
4776                 kw++;
4777         }
4778 }
4779
4780 void fio_keywords_init(void)
4781 {
4782         unsigned long long mb_memory;
4783         char buf[128];
4784         long l;
4785
4786         sprintf(buf, "%lu", (unsigned long) page_size);
4787         fio_keywords[0].replace = strdup(buf);
4788
4789         mb_memory = os_phys_mem() / (1024 * 1024);
4790         sprintf(buf, "%llu", mb_memory);
4791         fio_keywords[1].replace = strdup(buf);
4792
4793         l = cpus_online();
4794         sprintf(buf, "%lu", l);
4795         fio_keywords[2].replace = strdup(buf);
4796 }
4797
4798 #define BC_APP          "bc"
4799
4800 static char *bc_calc(char *str)
4801 {
4802         char buf[128], *tmp;
4803         FILE *f;
4804         int ret;
4805
4806         /*
4807          * No math, just return string
4808          */
4809         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
4810              !strchr(str, '/')) || strchr(str, '\''))
4811                 return str;
4812
4813         /*
4814          * Split option from value, we only need to calculate the value
4815          */
4816         tmp = strchr(str, '=');
4817         if (!tmp)
4818                 return str;
4819
4820         tmp++;
4821
4822         /*
4823          * Prevent buffer overflows; such a case isn't reasonable anyway
4824          */
4825         if (strlen(str) >= 128 || strlen(tmp) > 100)
4826                 return str;
4827
4828         sprintf(buf, "which %s > /dev/null", BC_APP);
4829         if (system(buf)) {
4830                 log_err("fio: bc is needed for performing math\n");
4831                 return NULL;
4832         }
4833
4834         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
4835         f = popen(buf, "r");
4836         if (!f)
4837                 return NULL;
4838
4839         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
4840         if (ret <= 0) {
4841                 pclose(f);
4842                 return NULL;
4843         }
4844
4845         pclose(f);
4846         buf[(tmp - str) + ret - 1] = '\0';
4847         memcpy(buf, str, tmp - str);
4848         free(str);
4849         return strdup(buf);
4850 }
4851
4852 /*
4853  * Return a copy of the input string with substrings of the form ${VARNAME}
4854  * substituted with the value of the environment variable VARNAME.  The
4855  * substitution always occurs, even if VARNAME is empty or the corresponding
4856  * environment variable undefined.
4857  */
4858 char *fio_option_dup_subs(const char *opt)
4859 {
4860         char out[OPT_LEN_MAX+1];
4861         char in[OPT_LEN_MAX+1];
4862         char *outptr = out;
4863         char *inptr = in;
4864         char *ch1, *ch2, *env;
4865         ssize_t nchr = OPT_LEN_MAX;
4866         size_t envlen;
4867
4868         if (strlen(opt) + 1 > OPT_LEN_MAX) {
4869                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
4870                 return NULL;
4871         }
4872
4873         in[OPT_LEN_MAX] = '\0';
4874         strncpy(in, opt, OPT_LEN_MAX);
4875
4876         while (*inptr && nchr > 0) {
4877                 if (inptr[0] == '$' && inptr[1] == '{') {
4878                         ch2 = strchr(inptr, '}');
4879                         if (ch2 && inptr+1 < ch2) {
4880                                 ch1 = inptr+2;
4881                                 inptr = ch2+1;
4882                                 *ch2 = '\0';
4883
4884                                 env = getenv(ch1);
4885                                 if (env) {
4886                                         envlen = strlen(env);
4887                                         if (envlen <= nchr) {
4888                                                 memcpy(outptr, env, envlen);
4889                                                 outptr += envlen;
4890                                                 nchr -= envlen;
4891                                         }
4892                                 }
4893
4894                                 continue;
4895                         }
4896                 }
4897
4898                 *outptr++ = *inptr++;
4899                 --nchr;
4900         }
4901
4902         *outptr = '\0';
4903         return strdup(out);
4904 }
4905
4906 /*
4907  * Look for reserved variable names and replace them with real values
4908  */
4909 static char *fio_keyword_replace(char *opt)
4910 {
4911         char *s;
4912         int i;
4913         int docalc = 0;
4914
4915         for (i = 0; fio_keywords[i].word != NULL; i++) {
4916                 struct fio_keyword *kw = &fio_keywords[i];
4917
4918                 while ((s = strstr(opt, kw->word)) != NULL) {
4919                         char *new = malloc(strlen(opt) + 1);
4920                         char *o_org = opt;
4921                         int olen = s - opt;
4922                         int len;
4923
4924                         /*
4925                          * Copy part of the string before the keyword and
4926                          * sprintf() the replacement after it.
4927                          */
4928                         memcpy(new, opt, olen);
4929                         len = sprintf(new + olen, "%s", kw->replace);
4930
4931                         /*
4932                          * If there's more in the original string, copy that
4933                          * in too
4934                          */
4935                         opt += strlen(kw->word) + olen;
4936                         if (strlen(opt))
4937                                 memcpy(new + olen + len, opt, opt - o_org - 1);
4938
4939                         /*
4940                          * replace opt and free the old opt
4941                          */
4942                         opt = new;
4943                         free(o_org);
4944
4945                         docalc = 1;
4946                 }
4947         }
4948
4949         /*
4950          * Check for potential math and invoke bc, if possible
4951          */
4952         if (docalc)
4953                 opt = bc_calc(opt);
4954
4955         return opt;
4956 }
4957
4958 static char **dup_and_sub_options(char **opts, int num_opts)
4959 {
4960         int i;
4961         char **opts_copy = malloc(num_opts * sizeof(*opts));
4962         for (i = 0; i < num_opts; i++) {
4963                 opts_copy[i] = fio_option_dup_subs(opts[i]);
4964                 if (!opts_copy[i])
4965                         continue;
4966                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
4967         }
4968         return opts_copy;
4969 }
4970
4971 static void show_closest_option(const char *opt)
4972 {
4973         int best_option, best_distance;
4974         int i, distance;
4975         char *name;
4976
4977         if (!strlen(opt))
4978                 return;
4979
4980         name = strdup(opt);
4981         i = 0;
4982         while (name[i] != '\0' && name[i] != '=')
4983                 i++;
4984         name[i] = '\0';
4985
4986         best_option = -1;
4987         best_distance = INT_MAX;
4988         i = 0;
4989         while (fio_options[i].name) {
4990                 distance = string_distance(name, fio_options[i].name);
4991                 if (distance < best_distance) {
4992                         best_distance = distance;
4993                         best_option = i;
4994                 }
4995                 i++;
4996         }
4997
4998         if (best_option != -1 && string_distance_ok(name, best_distance) &&
4999             fio_options[best_option].type != FIO_OPT_UNSUPPORTED)
5000                 log_err("Did you mean %s?\n", fio_options[best_option].name);
5001
5002         free(name);
5003 }
5004
5005 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
5006 {
5007         int i, ret, unknown;
5008         char **opts_copy;
5009
5010         sort_options(opts, fio_options, num_opts);
5011         opts_copy = dup_and_sub_options(opts, num_opts);
5012
5013         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
5014                 const struct fio_option *o;
5015                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
5016                                                 &o, &td->o, &td->opt_list);
5017
5018                 if (!newret && o)
5019                         fio_option_mark_set(&td->o, o);
5020
5021                 if (opts_copy[i]) {
5022                         if (newret && !o) {
5023                                 unknown++;
5024                                 continue;
5025                         }
5026                         free(opts_copy[i]);
5027                         opts_copy[i] = NULL;
5028                 }
5029
5030                 ret |= newret;
5031         }
5032
5033         if (unknown) {
5034                 ret |= ioengine_load(td);
5035                 if (td->eo) {
5036                         sort_options(opts_copy, td->io_ops->options, num_opts);
5037                         opts = opts_copy;
5038                 }
5039                 for (i = 0; i < num_opts; i++) {
5040                         const struct fio_option *o = NULL;
5041                         int newret = 1;
5042
5043                         if (!opts_copy[i])
5044                                 continue;
5045
5046                         if (td->eo)
5047                                 newret = parse_option(opts_copy[i], opts[i],
5048                                                       td->io_ops->options, &o,
5049                                                       td->eo, &td->opt_list);
5050
5051                         ret |= newret;
5052                         if (!o) {
5053                                 log_err("Bad option <%s>\n", opts[i]);
5054                                 show_closest_option(opts[i]);
5055                         }
5056                         free(opts_copy[i]);
5057                         opts_copy[i] = NULL;
5058                 }
5059         }
5060
5061         free(opts_copy);
5062         return ret;
5063 }
5064
5065 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
5066 {
5067         int ret;
5068
5069         ret = parse_cmd_option(opt, val, fio_options, &td->o, &td->opt_list);
5070         if (!ret) {
5071                 const struct fio_option *o;
5072
5073                 o = find_option_c(fio_options, opt);
5074                 if (o)
5075                         fio_option_mark_set(&td->o, o);
5076         }
5077
5078         return ret;
5079 }
5080
5081 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
5082                                 char *val)
5083 {
5084         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
5085                                         &td->opt_list);
5086 }
5087
5088 void fio_fill_default_options(struct thread_data *td)
5089 {
5090         td->o.magic = OPT_MAGIC;
5091         fill_default_options(&td->o, fio_options);
5092 }
5093
5094 int fio_show_option_help(const char *opt)
5095 {
5096         return show_cmd_help(fio_options, opt);
5097 }
5098
5099 /*
5100  * dupe FIO_OPT_STR_STORE options
5101  */
5102 void fio_options_mem_dupe(struct thread_data *td)
5103 {
5104         options_mem_dupe(fio_options, &td->o);
5105
5106         if (td->eo && td->io_ops) {
5107                 void *oldeo = td->eo;
5108
5109                 td->eo = malloc(td->io_ops->option_struct_size);
5110                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
5111                 options_mem_dupe(td->io_ops->options, td->eo);
5112         }
5113 }
5114
5115 unsigned int fio_get_kb_base(void *data)
5116 {
5117         struct thread_data *td = cb_data_to_td(data);
5118         struct thread_options *o = &td->o;
5119         unsigned int kb_base = 0;
5120
5121         /*
5122          * This is a hack... For private options, *data is not holding
5123          * a pointer to the thread_options, but to private data. This means
5124          * we can't safely dereference it, but magic is first so mem wise
5125          * it is valid. But this also means that if the job first sets
5126          * kb_base and expects that to be honored by private options,
5127          * it will be disappointed. We will return the global default
5128          * for this.
5129          */
5130         if (o && o->magic == OPT_MAGIC)
5131                 kb_base = o->kb_base;
5132         if (!kb_base)
5133                 kb_base = 1024;
5134
5135         return kb_base;
5136 }
5137
5138 int add_option(const struct fio_option *o)
5139 {
5140         struct fio_option *__o;
5141         int opt_index = 0;
5142
5143         __o = fio_options;
5144         while (__o->name) {
5145                 opt_index++;
5146                 __o++;
5147         }
5148
5149         if (opt_index + 1 == FIO_MAX_OPTS) {
5150                 log_err("fio: FIO_MAX_OPTS is too small\n");
5151                 return 1;
5152         }
5153
5154         memcpy(&fio_options[opt_index], o, sizeof(*o));
5155         fio_options[opt_index + 1].name = NULL;
5156         return 0;
5157 }
5158
5159 void invalidate_profile_options(const char *prof_name)
5160 {
5161         struct fio_option *o;
5162
5163         o = fio_options;
5164         while (o->name) {
5165                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
5166                         o->type = FIO_OPT_INVALID;
5167                         o->prof_name = NULL;
5168                 }
5169                 o++;
5170         }
5171 }
5172
5173 void add_opt_posval(const char *optname, const char *ival, const char *help)
5174 {
5175         struct fio_option *o;
5176         unsigned int i;
5177
5178         o = find_option(fio_options, optname);
5179         if (!o)
5180                 return;
5181
5182         for (i = 0; i < PARSE_MAX_VP; i++) {
5183                 if (o->posval[i].ival)
5184                         continue;
5185
5186                 o->posval[i].ival = ival;
5187                 o->posval[i].help = help;
5188                 break;
5189         }
5190 }
5191
5192 void del_opt_posval(const char *optname, const char *ival)
5193 {
5194         struct fio_option *o;
5195         unsigned int i;
5196
5197         o = find_option(fio_options, optname);
5198         if (!o)
5199                 return;
5200
5201         for (i = 0; i < PARSE_MAX_VP; i++) {
5202                 if (!o->posval[i].ival)
5203                         continue;
5204                 if (strcmp(o->posval[i].ival, ival))
5205                         continue;
5206
5207                 o->posval[i].ival = NULL;
5208                 o->posval[i].help = NULL;
5209         }
5210 }
5211
5212 void fio_options_free(struct thread_data *td)
5213 {
5214         options_free(fio_options, &td->o);
5215         if (td->eo && td->io_ops && td->io_ops->options) {
5216                 options_free(td->io_ops->options, td->eo);
5217                 free(td->eo);
5218                 td->eo = NULL;
5219         }
5220 }
5221
5222 struct fio_option *fio_option_find(const char *name)
5223 {
5224         return find_option(fio_options, name);
5225 }
5226
5227 static struct fio_option *find_next_opt(struct fio_option *from,
5228                                         unsigned int off1)
5229 {
5230         struct fio_option *opt;
5231
5232         if (!from)
5233                 from = &fio_options[0];
5234         else
5235                 from++;
5236
5237         opt = NULL;
5238         do {
5239                 if (off1 == from->off1) {
5240                         opt = from;
5241                         break;
5242                 }
5243                 from++;
5244         } while (from->name);
5245
5246         return opt;
5247 }
5248
5249 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
5250 {
5251         unsigned int opt_off, index, offset;
5252
5253         opt_off = opt - &fio_options[0];
5254         index = opt_off / (8 * sizeof(uint64_t));
5255         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5256         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
5257 }
5258
5259 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
5260 {
5261         struct fio_option *opt, *next;
5262
5263         next = NULL;
5264         while ((opt = find_next_opt(next, off1)) != NULL) {
5265                 if (opt_is_set(o, opt))
5266                         return true;
5267
5268                 next = opt;
5269         }
5270
5271         return false;
5272 }
5273
5274 void fio_option_mark_set(struct thread_options *o, const struct fio_option *opt)
5275 {
5276         unsigned int opt_off, index, offset;
5277
5278         opt_off = opt - &fio_options[0];
5279         index = opt_off / (8 * sizeof(uint64_t));
5280         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5281         o->set_options[index] |= (uint64_t)1 << offset;
5282 }