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 int 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 int 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 void __td_zone_gen_index(struct thread_data *td, enum fio_ddir ddir)
 963 {
 964         unsigned int i, j, sprev, aprev;
 965         uint64_t sprev_sz;
 966
 967         td->zone_state_index[ddir] = malloc(sizeof(struct zone_split_index) * 100);
 968
 969         sprev_sz = sprev = aprev = 0;
 970         for (i = 0; i < td->o.zone_split_nr[ddir]; i++) {
 971                 struct zone_split *zsp = &td->o.zone_split[ddir][i];
 972
 973                 for (j = aprev; j < aprev + zsp->access_perc; j++) {
 974                         struct zone_split_index *zsi = &td->zone_state_index[ddir][j];
 975
 976                         zsi->size_perc = sprev + zsp->size_perc;
 977                         zsi->size_perc_prev = sprev;
 978
 979                         zsi->size = sprev_sz + zsp->size;
 980                         zsi->size_prev = sprev_sz;
 981                 }
 982
 983                 aprev += zsp->access_perc;
 984                 sprev += zsp->size_perc;
 985                 sprev_sz += zsp->size;
 986         }
 987 }
 988
 989 /*
 990  * Generate state table for indexes, so we don't have to do it inline from
 991  * the hot IO path
 992  */
 993 static void td_zone_gen_index(struct thread_data *td)
 994 {
 995         int i;
 996
 997         td->zone_state_index = malloc(DDIR_RWDIR_CNT *
 998                                         sizeof(struct zone_split_index *));
 999
1000         for (i = 0; i < DDIR_RWDIR_CNT; i++)
1001                 __td_zone_gen_index(td, i);
1002 }
1003
1004 static int parse_zoned_distribution(struct thread_data *td, const char *input,
1005                                     bool absolute)
1006 {
1007         const char *pre = absolute ? "zoned_abs:" : "zoned:";
1008         char *str, *p;
1009         int i, ret = 0;
1010
1011         p = str = strdup(input);
1012
1013         strip_blank_front(&str);
1014         strip_blank_end(str);
1015
1016         /* We expect it to start like that, bail if not */
1017         if (strncmp(str, pre, strlen(pre))) {
1018                 log_err("fio: mismatch in zoned input <%s>\n", str);
1019                 free(p);
1020                 return 1;
1021         }
1022         str += strlen(pre);
1023
1024         ret = str_split_parse(td, str, zone_split_ddir, absolute);
1025
1026         free(p);
1027
1028         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1029                 int j;
1030
1031                 dprint(FD_PARSE, "zone ddir %d (nr=%u): \n", i, td->o.zone_split_nr[i]);
1032
1033                 for (j = 0; j < td->o.zone_split_nr[i]; j++) {
1034                         struct zone_split *zsp = &td->o.zone_split[i][j];
1035
1036                         if (absolute) {
1037                                 dprint(FD_PARSE, "\t%d: %u/%llu\n", j,
1038                                                 zsp->access_perc,
1039                                                 (unsigned long long) zsp->size);
1040                         } else {
1041                                 dprint(FD_PARSE, "\t%d: %u/%u\n", j,
1042                                                 zsp->access_perc,
1043                                                 zsp->size_perc);
1044                         }
1045                 }
1046         }
1047
1048         if (parse_dryrun()) {
1049                 int i;
1050
1051                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1052                         free(td->o.zone_split[i]);
1053                         td->o.zone_split[i] = NULL;
1054                         td->o.zone_split_nr[i] = 0;
1055                 }
1056
1057                 return ret;
1058         }
1059
1060         if (!ret)
1061                 td_zone_gen_index(td);
1062         else {
1063                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1064                         td->o.zone_split_nr[i] = 0;
1065         }
1066
1067         return ret;
1068 }
1069
1070 static int str_random_distribution_cb(void *data, const char *str)
1071 {
1072         struct thread_data *td = cb_data_to_td(data);
1073         double val;
1074         char *nr;
1075
1076         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1077                 val = FIO_DEF_ZIPF;
1078         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1079                 val = FIO_DEF_PARETO;
1080         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1081                 val = 0.0;
1082         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
1083                 return parse_zoned_distribution(td, str, false);
1084         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
1085                 return parse_zoned_distribution(td, str, true);
1086         else
1087                 return 0;
1088
1089         nr = get_opt_postfix(str);
1090         if (nr && !str_to_float(nr, &val, 0)) {
1091                 log_err("fio: random postfix parsing failed\n");
1092                 free(nr);
1093                 return 1;
1094         }
1095
1096         free(nr);
1097
1098         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
1099                 if (val == 1.00) {
1100                         log_err("fio: zipf theta must different than 1.0\n");
1101                         return 1;
1102                 }
1103                 if (parse_dryrun())
1104                         return 0;
1105                 td->o.zipf_theta.u.f = val;
1106         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
1107                 if (val <= 0.00 || val >= 1.00) {
1108                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1109                         return 1;
1110                 }
1111                 if (parse_dryrun())
1112                         return 0;
1113                 td->o.pareto_h.u.f = val;
1114         } else {
1115                 if (val < 0.00 || val >= 100.0) {
1116                         log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1117                         return 1;
1118                 }
1119                 if (parse_dryrun())
1120                         return 0;
1121                 td->o.gauss_dev.u.f = val;
1122         }
1123
1124         return 0;
1125 }
1126
1127 static int str_steadystate_cb(void *data, const char *str)
1128 {
1129         struct thread_data *td = cb_data_to_td(data);
1130         double val;
1131         char *nr;
1132         char *pct;
1133         long long ll;
1134
1135         if (td->o.ss_state != FIO_SS_IOPS && td->o.ss_state != FIO_SS_IOPS_SLOPE &&
1136             td->o.ss_state != FIO_SS_BW && td->o.ss_state != FIO_SS_BW_SLOPE) {
1137                 /* should be impossible to get here */
1138                 log_err("fio: unknown steady state criterion\n");
1139                 return 1;
1140         }
1141
1142         nr = get_opt_postfix(str);
1143         if (!nr) {
1144                 log_err("fio: steadystate threshold must be specified in addition to criterion\n");
1145                 free(nr);
1146                 return 1;
1147         }
1148
1149         /* ENHANCEMENT Allow fio to understand size=10.2% and use here */
1150         pct = strstr(nr, "%");
1151         if (pct) {
1152                 *pct = '\0';
1153                 strip_blank_end(nr);
1154                 if (!str_to_float(nr, &val, 0)) {
1155                         log_err("fio: could not parse steadystate threshold percentage\n");
1156                         free(nr);
1157                         return 1;
1158                 }
1159
1160                 dprint(FD_PARSE, "set steady state threshold to %f%%\n", val);
1161                 free(nr);
1162                 if (parse_dryrun())
1163                         return 0;
1164
1165                 td->o.ss_state |= FIO_SS_PCT;
1166                 td->o.ss_limit.u.f = val;
1167         } else if (td->o.ss_state & FIO_SS_IOPS) {
1168                 if (!str_to_float(nr, &val, 0)) {
1169                         log_err("fio: steadystate IOPS threshold postfix parsing failed\n");
1170                         free(nr);
1171                         return 1;
1172                 }
1173
1174                 dprint(FD_PARSE, "set steady state IOPS threshold to %f\n", val);
1175                 free(nr);
1176                 if (parse_dryrun())
1177                         return 0;
1178
1179                 td->o.ss_limit.u.f = val;
1180         } else {        /* bandwidth criterion */
1181                 if (str_to_decimal(nr, &ll, 1, td, 0, 0)) {
1182                         log_err("fio: steadystate BW threshold postfix parsing failed\n");
1183                         free(nr);
1184                         return 1;
1185                 }
1186
1187                 dprint(FD_PARSE, "set steady state BW threshold to %lld\n", ll);
1188                 free(nr);
1189                 if (parse_dryrun())
1190                         return 0;
1191
1192                 td->o.ss_limit.u.f = (double) ll;
1193         }
1194
1195         td->ss.state = td->o.ss_state;
1196         return 0;
1197 }
1198
1199 /*
1200  * Return next name in the string. Files are separated with ':'. If the ':'
1201  * is escaped with a '\', then that ':' is part of the filename and does not
1202  * indicate a new file.
1203  */
1204 static char *get_next_name(char **ptr)
1205 {
1206         char *str = *ptr;
1207         char *p, *start;
1208
1209         if (!str || !strlen(str))
1210                 return NULL;
1211
1212         start = str;
1213         do {
1214                 /*
1215                  * No colon, we are done
1216                  */
1217                 p = strchr(str, ':');
1218                 if (!p) {
1219                         *ptr = NULL;
1220                         break;
1221                 }
1222
1223                 /*
1224                  * We got a colon, but it's the first character. Skip and
1225                  * continue
1226                  */
1227                 if (p == start) {
1228                         str = ++start;
1229                         continue;
1230                 }
1231
1232                 if (*(p - 1) != '\\') {
1233                         *p = '\0';
1234                         *ptr = p + 1;
1235                         break;
1236                 }
1237
1238                 memmove(p - 1, p, strlen(p) + 1);
1239                 str = p;
1240         } while (1);
1241
1242         return start;
1243 }
1244
1245
1246 static int get_max_name_idx(char *input)
1247 {
1248         unsigned int cur_idx;
1249         char *str, *p;
1250
1251         p = str = strdup(input);
1252         for (cur_idx = 0; ; cur_idx++)
1253                 if (get_next_name(&str) == NULL)
1254                         break;
1255
1256         free(p);
1257         return cur_idx;
1258 }
1259
1260 /*
1261  * Returns the directory at the index, indexes > entires will be
1262  * assigned via modulo division of the index
1263  */
1264 int set_name_idx(char *target, size_t tlen, char *input, int index,
1265                  bool unique_filename)
1266 {
1267         unsigned int cur_idx;
1268         int len;
1269         char *fname, *str, *p;
1270
1271         p = str = strdup(input);
1272
1273         index %= get_max_name_idx(input);
1274         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1275                 fname = get_next_name(&str);
1276
1277         if (client_sockaddr_str[0] && unique_filename) {
1278                 len = snprintf(target, tlen, "%s/%s.", fname,
1279                                 client_sockaddr_str);
1280         } else
1281                 len = snprintf(target, tlen, "%s/", fname);
1282
1283         target[tlen - 1] = '\0';
1284         free(p);
1285
1286         return len;
1287 }
1288
1289 static int str_filename_cb(void *data, const char *input)
1290 {
1291         struct thread_data *td = cb_data_to_td(data);
1292         char *fname, *str, *p;
1293
1294         p = str = strdup(input);
1295
1296         strip_blank_front(&str);
1297         strip_blank_end(str);
1298
1299         /*
1300          * Ignore what we may already have from nrfiles option.
1301          */
1302         if (!td->files_index)
1303                 td->o.nr_files = 0;
1304
1305         while ((fname = get_next_name(&str)) != NULL) {
1306                 if (!strlen(fname))
1307                         break;
1308                 add_file(td, fname, 0, 1);
1309         }
1310
1311         free(p);
1312         return 0;
1313 }
1314
1315 static int str_directory_cb(void *data, const char fio_unused *unused)
1316 {
1317         struct thread_data *td = cb_data_to_td(data);
1318         struct stat sb;
1319         char *dirname, *str, *p;
1320         int ret = 0;
1321
1322         if (parse_dryrun())
1323                 return 0;
1324
1325         p = str = strdup(td->o.directory);
1326         while ((dirname = get_next_name(&str)) != NULL) {
1327                 if (lstat(dirname, &sb) < 0) {
1328                         ret = errno;
1329
1330                         log_err("fio: %s is not a directory\n", dirname);
1331                         td_verror(td, ret, "lstat");
1332                         goto out;
1333                 }
1334                 if (!S_ISDIR(sb.st_mode)) {
1335                         log_err("fio: %s is not a directory\n", dirname);
1336                         ret = 1;
1337                         goto out;
1338                 }
1339         }
1340
1341 out:
1342         free(p);
1343         return ret;
1344 }
1345
1346 static int str_opendir_cb(void *data, const char fio_unused *str)
1347 {
1348         struct thread_data *td = cb_data_to_td(data);
1349
1350         if (parse_dryrun())
1351                 return 0;
1352
1353         if (!td->files_index)
1354                 td->o.nr_files = 0;
1355
1356         return add_dir_files(td, td->o.opendir);
1357 }
1358
1359 static int str_buffer_pattern_cb(void *data, const char *input)
1360 {
1361         struct thread_data *td = cb_data_to_td(data);
1362         int ret;
1363
1364         /* FIXME: for now buffer pattern does not support formats */
1365         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
1366                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
1367         if (ret < 0)
1368                 return 1;
1369
1370         assert(ret != 0);
1371         td->o.buffer_pattern_bytes = ret;
1372
1373         /*
1374          * If this job is doing any reading or has compression set,
1375          * ensure that we refill buffers for writes or we could be
1376          * invalidating the pattern through reads.
1377          */
1378         if (!td->o.compress_percentage && !td_read(td))
1379                 td->o.refill_buffers = 0;
1380         else
1381                 td->o.refill_buffers = 1;
1382
1383         td->o.scramble_buffers = 0;
1384         td->o.zero_buffers = 0;
1385
1386         return 0;
1387 }
1388
1389 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1390 {
1391         struct thread_data *td = cb_data_to_td(data);
1392
1393         td->flags |= TD_F_COMPRESS;
1394         td->o.compress_percentage = *il;
1395         return 0;
1396 }
1397
1398 static int str_dedupe_cb(void *data, unsigned long long *il)
1399 {
1400         struct thread_data *td = cb_data_to_td(data);
1401
1402         td->flags |= TD_F_COMPRESS;
1403         td->o.dedupe_percentage = *il;
1404         td->o.refill_buffers = 1;
1405         return 0;
1406 }
1407
1408 static int str_verify_pattern_cb(void *data, const char *input)
1409 {
1410         struct thread_data *td = cb_data_to_td(data);
1411         int ret;
1412
1413         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
1414         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
1415                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
1416                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
1417         if (ret < 0)
1418                 return 1;
1419
1420         assert(ret != 0);
1421         td->o.verify_pattern_bytes = ret;
1422         /*
1423          * VERIFY_* could already be set
1424          */
1425         if (!fio_option_is_set(&td->o, verify))
1426                 td->o.verify = VERIFY_PATTERN;
1427
1428         return 0;
1429 }
1430
1431 static int str_gtod_reduce_cb(void *data, int *il)
1432 {
1433         struct thread_data *td = cb_data_to_td(data);
1434         int val = *il;
1435
1436         td->o.disable_lat = !!val;
1437         td->o.disable_clat = !!val;
1438         td->o.disable_slat = !!val;
1439         td->o.disable_bw = !!val;
1440         td->o.clat_percentiles = !val;
1441         if (val)
1442                 td->ts_cache_mask = 63;
1443
1444         return 0;
1445 }
1446
1447 static int str_offset_cb(void *data, unsigned long long *__val)
1448 {
1449         struct thread_data *td = cb_data_to_td(data);
1450         unsigned long long v = *__val;
1451
1452         if (parse_is_percent(v)) {
1453                 td->o.start_offset = 0;
1454                 td->o.start_offset_percent = -1ULL - v;
1455                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1456                                         td->o.start_offset_percent);
1457         } else
1458                 td->o.start_offset = v;
1459
1460         return 0;
1461 }
1462
1463 static int str_size_cb(void *data, unsigned long long *__val)
1464 {
1465         struct thread_data *td = cb_data_to_td(data);
1466         unsigned long long v = *__val;
1467
1468         if (parse_is_percent(v)) {
1469                 td->o.size = 0;
1470                 td->o.size_percent = -1ULL - v;
1471                 dprint(FD_PARSE, "SET size_percent %d\n",
1472                                         td->o.size_percent);
1473         } else
1474                 td->o.size = v;
1475
1476         return 0;
1477 }
1478
1479 static int str_write_bw_log_cb(void *data, const char *str)
1480 {
1481         struct thread_data *td = cb_data_to_td(data);
1482
1483         if (str)
1484                 td->o.bw_log_file = strdup(str);
1485
1486         td->o.write_bw_log = 1;
1487         return 0;
1488 }
1489
1490 static int str_write_lat_log_cb(void *data, const char *str)
1491 {
1492         struct thread_data *td = cb_data_to_td(data);
1493
1494         if (str)
1495                 td->o.lat_log_file = strdup(str);
1496
1497         td->o.write_lat_log = 1;
1498         return 0;
1499 }
1500
1501 static int str_write_iops_log_cb(void *data, const char *str)
1502 {
1503         struct thread_data *td = cb_data_to_td(data);
1504
1505         if (str)
1506                 td->o.iops_log_file = strdup(str);
1507
1508         td->o.write_iops_log = 1;
1509         return 0;
1510 }
1511
1512 static int str_write_hist_log_cb(void *data, const char *str)
1513 {
1514         struct thread_data *td = cb_data_to_td(data);
1515
1516         if (str)
1517                 td->o.hist_log_file = strdup(str);
1518
1519         td->o.write_hist_log = 1;
1520         return 0;
1521 }
1522
1523 /*
1524  * str is supposed to be a substring of the strdup'd original string,
1525  * and is valid only if it's a regular file path.
1526  * This function keeps the pointer to the path as needed later.
1527  *
1528  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1529  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1530  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1531  */
1532 static int str_ioengine_external_cb(void *data, const char *str)
1533 {
1534         struct thread_data *td = cb_data_to_td(data);
1535         struct stat sb;
1536         char *p;
1537
1538         if (!str) {
1539                 log_err("fio: null external ioengine path\n");
1540                 return 1;
1541         }
1542
1543         p = (char *)str; /* str is mutable */
1544         strip_blank_front(&p);
1545         strip_blank_end(p);
1546
1547         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1548                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1549                 return 1;
1550         }
1551
1552         td->o.ioengine_so_path = p;
1553         return 0;
1554 }
1555
1556 static int rw_verify(const struct fio_option *o, void *data)
1557 {
1558         struct thread_data *td = cb_data_to_td(data);
1559
1560         if (read_only && td_write(td)) {
1561                 log_err("fio: job <%s> has write bit set, but fio is in"
1562                         " read-only mode\n", td->o.name);
1563                 return 1;
1564         }
1565
1566         return 0;
1567 }
1568
1569 static int gtod_cpu_verify(const struct fio_option *o, void *data)
1570 {
1571 #ifndef FIO_HAVE_CPU_AFFINITY
1572         struct thread_data *td = cb_data_to_td(data);
1573
1574         if (td->o.gtod_cpu) {
1575                 log_err("fio: platform must support CPU affinity for"
1576                         "gettimeofday() offloading\n");
1577                 return 1;
1578         }
1579 #endif
1580
1581         return 0;
1582 }
1583
1584 /*
1585  * Map of job/command line options
1586  */
1587 struct fio_option fio_options[FIO_MAX_OPTS] = {
1588         {
1589                 .name   = "description",
1590                 .lname  = "Description of job",
1591                 .type   = FIO_OPT_STR_STORE,
1592                 .off1   = offsetof(struct thread_options, description),
1593                 .help   = "Text job description",
1594                 .category = FIO_OPT_C_GENERAL,
1595                 .group  = FIO_OPT_G_DESC,
1596         },
1597         {
1598                 .name   = "name",
1599                 .lname  = "Job name",
1600                 .type   = FIO_OPT_STR_STORE,
1601                 .off1   = offsetof(struct thread_options, name),
1602                 .help   = "Name of this job",
1603                 .category = FIO_OPT_C_GENERAL,
1604                 .group  = FIO_OPT_G_DESC,
1605         },
1606         {
1607                 .name   = "wait_for",
1608                 .lname  = "Waitee name",
1609                 .type   = FIO_OPT_STR_STORE,
1610                 .off1   = offsetof(struct thread_options, wait_for),
1611                 .help   = "Name of the job this one wants to wait for before starting",
1612                 .category = FIO_OPT_C_GENERAL,
1613                 .group  = FIO_OPT_G_DESC,
1614         },
1615         {
1616                 .name   = "filename",
1617                 .lname  = "Filename(s)",
1618                 .type   = FIO_OPT_STR_STORE,
1619                 .off1   = offsetof(struct thread_options, filename),
1620                 .cb     = str_filename_cb,
1621                 .prio   = -1, /* must come after "directory" */
1622                 .help   = "File(s) to use for the workload",
1623                 .category = FIO_OPT_C_FILE,
1624                 .group  = FIO_OPT_G_FILENAME,
1625         },
1626         {
1627                 .name   = "directory",
1628                 .lname  = "Directory",
1629                 .type   = FIO_OPT_STR_STORE,
1630                 .off1   = offsetof(struct thread_options, directory),
1631                 .cb     = str_directory_cb,
1632                 .help   = "Directory to store files in",
1633                 .category = FIO_OPT_C_FILE,
1634                 .group  = FIO_OPT_G_FILENAME,
1635         },
1636         {
1637                 .name   = "filename_format",
1638                 .lname  = "Filename Format",
1639                 .type   = FIO_OPT_STR_STORE,
1640                 .off1   = offsetof(struct thread_options, filename_format),
1641                 .prio   = -1, /* must come after "directory" */
1642                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1643                 .def    = "$jobname.$jobnum.$filenum",
1644                 .category = FIO_OPT_C_FILE,
1645                 .group  = FIO_OPT_G_FILENAME,
1646         },
1647         {
1648                 .name   = "unique_filename",
1649                 .lname  = "Unique Filename",
1650                 .type   = FIO_OPT_BOOL,
1651                 .off1   = offsetof(struct thread_options, unique_filename),
1652                 .help   = "For network clients, prefix file with source IP",
1653                 .def    = "1",
1654                 .category = FIO_OPT_C_FILE,
1655                 .group  = FIO_OPT_G_FILENAME,
1656         },
1657         {
1658                 .name   = "lockfile",
1659                 .lname  = "Lockfile",
1660                 .type   = FIO_OPT_STR,
1661                 .off1   = offsetof(struct thread_options, file_lock_mode),
1662                 .help   = "Lock file when doing IO to it",
1663                 .prio   = 1,
1664                 .parent = "filename",
1665                 .hide   = 0,
1666                 .def    = "none",
1667                 .category = FIO_OPT_C_FILE,
1668                 .group  = FIO_OPT_G_FILENAME,
1669                 .posval = {
1670                           { .ival = "none",
1671                             .oval = FILE_LOCK_NONE,
1672                             .help = "No file locking",
1673                           },
1674                           { .ival = "exclusive",
1675                             .oval = FILE_LOCK_EXCLUSIVE,
1676                             .help = "Exclusive file lock",
1677                           },
1678                           {
1679                             .ival = "readwrite",
1680                             .oval = FILE_LOCK_READWRITE,
1681                             .help = "Read vs write lock",
1682                           },
1683                 },
1684         },
1685         {
1686                 .name   = "opendir",
1687                 .lname  = "Open directory",
1688                 .type   = FIO_OPT_STR_STORE,
1689                 .off1   = offsetof(struct thread_options, opendir),
1690                 .cb     = str_opendir_cb,
1691                 .help   = "Recursively add files from this directory and down",
1692                 .category = FIO_OPT_C_FILE,
1693                 .group  = FIO_OPT_G_FILENAME,
1694         },
1695         {
1696                 .name   = "rw",
1697                 .lname  = "Read/write",
1698                 .alias  = "readwrite",
1699                 .type   = FIO_OPT_STR,
1700                 .cb     = str_rw_cb,
1701                 .off1   = offsetof(struct thread_options, td_ddir),
1702                 .help   = "IO direction",
1703                 .def    = "read",
1704                 .verify = rw_verify,
1705                 .category = FIO_OPT_C_IO,
1706                 .group  = FIO_OPT_G_IO_BASIC,
1707                 .posval = {
1708                           { .ival = "read",
1709                             .oval = TD_DDIR_READ,
1710                             .help = "Sequential read",
1711                           },
1712                           { .ival = "write",
1713                             .oval = TD_DDIR_WRITE,
1714                             .help = "Sequential write",
1715                           },
1716                           { .ival = "trim",
1717                             .oval = TD_DDIR_TRIM,
1718                             .help = "Sequential trim",
1719                           },
1720                           { .ival = "randread",
1721                             .oval = TD_DDIR_RANDREAD,
1722                             .help = "Random read",
1723                           },
1724                           { .ival = "randwrite",
1725                             .oval = TD_DDIR_RANDWRITE,
1726                             .help = "Random write",
1727                           },
1728                           { .ival = "randtrim",
1729                             .oval = TD_DDIR_RANDTRIM,
1730                             .help = "Random trim",
1731                           },
1732                           { .ival = "rw",
1733                             .oval = TD_DDIR_RW,
1734                             .help = "Sequential read and write mix",
1735                           },
1736                           { .ival = "readwrite",
1737                             .oval = TD_DDIR_RW,
1738                             .help = "Sequential read and write mix",
1739                           },
1740                           { .ival = "randrw",
1741                             .oval = TD_DDIR_RANDRW,
1742                             .help = "Random read and write mix"
1743                           },
1744                           { .ival = "trimwrite",
1745                             .oval = TD_DDIR_TRIMWRITE,
1746                             .help = "Trim and write mix, trims preceding writes"
1747                           },
1748                 },
1749         },
1750         {
1751                 .name   = "rw_sequencer",
1752                 .lname  = "RW Sequencer",
1753                 .type   = FIO_OPT_STR,
1754                 .off1   = offsetof(struct thread_options, rw_seq),
1755                 .help   = "IO offset generator modifier",
1756                 .def    = "sequential",
1757                 .category = FIO_OPT_C_IO,
1758                 .group  = FIO_OPT_G_IO_BASIC,
1759                 .posval = {
1760                           { .ival = "sequential",
1761                             .oval = RW_SEQ_SEQ,
1762                             .help = "Generate sequential offsets",
1763                           },
1764                           { .ival = "identical",
1765                             .oval = RW_SEQ_IDENT,
1766                             .help = "Generate identical offsets",
1767                           },
1768                 },
1769         },
1770
1771         {
1772                 .name   = "ioengine",
1773                 .lname  = "IO Engine",
1774                 .type   = FIO_OPT_STR_STORE,
1775                 .off1   = offsetof(struct thread_options, ioengine),
1776                 .help   = "IO engine to use",
1777                 .def    = FIO_PREFERRED_ENGINE,
1778                 .category = FIO_OPT_C_IO,
1779                 .group  = FIO_OPT_G_IO_BASIC,
1780                 .posval = {
1781                           { .ival = "sync",
1782                             .help = "Use read/write",
1783                           },
1784                           { .ival = "psync",
1785                             .help = "Use pread/pwrite",
1786                           },
1787                           { .ival = "vsync",
1788                             .help = "Use readv/writev",
1789                           },
1790 #ifdef CONFIG_PWRITEV
1791                           { .ival = "pvsync",
1792                             .help = "Use preadv/pwritev",
1793                           },
1794 #endif
1795 #ifdef FIO_HAVE_PWRITEV2
1796                           { .ival = "pvsync2",
1797                             .help = "Use preadv2/pwritev2",
1798                           },
1799 #endif
1800 #ifdef CONFIG_LIBAIO
1801                           { .ival = "libaio",
1802                             .help = "Linux native asynchronous IO",
1803                           },
1804 #endif
1805 #ifdef CONFIG_POSIXAIO
1806                           { .ival = "posixaio",
1807                             .help = "POSIX asynchronous IO",
1808                           },
1809 #endif
1810 #ifdef CONFIG_SOLARISAIO
1811                           { .ival = "solarisaio",
1812                             .help = "Solaris native asynchronous IO",
1813                           },
1814 #endif
1815 #ifdef CONFIG_WINDOWSAIO
1816                           { .ival = "windowsaio",
1817                             .help = "Windows native asynchronous IO"
1818                           },
1819 #endif
1820 #ifdef CONFIG_RBD
1821                           { .ival = "rbd",
1822                             .help = "Rados Block Device asynchronous IO"
1823                           },
1824 #endif
1825                           { .ival = "mmap",
1826                             .help = "Memory mapped IO"
1827                           },
1828 #ifdef CONFIG_LINUX_SPLICE
1829                           { .ival = "splice",
1830                             .help = "splice/vmsplice based IO",
1831                           },
1832                           { .ival = "netsplice",
1833                             .help = "splice/vmsplice to/from the network",
1834                           },
1835 #endif
1836 #ifdef FIO_HAVE_SGIO
1837                           { .ival = "sg",
1838                             .help = "SCSI generic v3 IO",
1839                           },
1840 #endif
1841                           { .ival = "null",
1842                             .help = "Testing engine (no data transfer)",
1843                           },
1844                           { .ival = "net",
1845                             .help = "Network IO",
1846                           },
1847                           { .ival = "cpuio",
1848                             .help = "CPU cycle burner engine",
1849                           },
1850 #ifdef CONFIG_GUASI
1851                           { .ival = "guasi",
1852                             .help = "GUASI IO engine",
1853                           },
1854 #endif
1855 #ifdef CONFIG_RDMA
1856                           { .ival = "rdma",
1857                             .help = "RDMA IO engine",
1858                           },
1859 #endif
1860 #ifdef CONFIG_FUSION_AW
1861                           { .ival = "fusion-aw-sync",
1862                             .help = "Fusion-io atomic write engine",
1863                           },
1864 #endif
1865 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1866                           { .ival = "e4defrag",
1867                             .help = "ext4 defrag engine",
1868                           },
1869 #endif
1870 #ifdef CONFIG_LINUX_FALLOCATE
1871                           { .ival = "falloc",
1872                             .help = "fallocate() file based engine",
1873                           },
1874 #endif
1875 #ifdef CONFIG_GFAPI
1876                           { .ival = "gfapi",
1877                             .help = "Glusterfs libgfapi(sync) based engine"
1878                           },
1879                           { .ival = "gfapi_async",
1880                             .help = "Glusterfs libgfapi(async) based engine"
1881                           },
1882 #endif
1883 #ifdef CONFIG_LIBHDFS
1884                           { .ival = "libhdfs",
1885                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1886                           },
1887 #endif
1888 #ifdef CONFIG_PMEMBLK
1889                           { .ival = "pmemblk",
1890                             .help = "PMDK libpmemblk based IO engine",
1891                           },
1892
1893 #endif
1894 #ifdef CONFIG_LINUX_DEVDAX
1895                           { .ival = "dev-dax",
1896                             .help = "DAX Device based IO engine",
1897                           },
1898 #endif
1899                           {
1900                             .ival = "filecreate",
1901                             .help = "File creation engine",
1902                           },
1903                           { .ival = "external",
1904                             .help = "Load external engine (append name)",
1905                             .cb = str_ioengine_external_cb,
1906                           },
1907 #ifdef CONFIG_LIBPMEM
1908                           { .ival = "libpmem",
1909                             .help = "PMDK libpmem based IO engine",
1910                           },
1911 #endif
1912                 },
1913         },
1914         {
1915                 .name   = "iodepth",
1916                 .lname  = "IO Depth",
1917                 .type   = FIO_OPT_INT,
1918                 .off1   = offsetof(struct thread_options, iodepth),
1919                 .help   = "Number of IO buffers to keep in flight",
1920                 .minval = 1,
1921                 .interval = 1,
1922                 .def    = "1",
1923                 .category = FIO_OPT_C_IO,
1924                 .group  = FIO_OPT_G_IO_BASIC,
1925         },
1926         {
1927                 .name   = "iodepth_batch",
1928                 .lname  = "IO Depth batch",
1929                 .alias  = "iodepth_batch_submit",
1930                 .type   = FIO_OPT_INT,
1931                 .off1   = offsetof(struct thread_options, iodepth_batch),
1932                 .help   = "Number of IO buffers to submit in one go",
1933                 .parent = "iodepth",
1934                 .hide   = 1,
1935                 .interval = 1,
1936                 .def    = "1",
1937                 .category = FIO_OPT_C_IO,
1938                 .group  = FIO_OPT_G_IO_BASIC,
1939         },
1940         {
1941                 .name   = "iodepth_batch_complete_min",
1942                 .lname  = "Min IO depth batch complete",
1943                 .alias  = "iodepth_batch_complete",
1944                 .type   = FIO_OPT_INT,
1945                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
1946                 .help   = "Min number of IO buffers to retrieve in one go",
1947                 .parent = "iodepth",
1948                 .hide   = 1,
1949                 .minval = 0,
1950                 .interval = 1,
1951                 .def    = "1",
1952                 .category = FIO_OPT_C_IO,
1953                 .group  = FIO_OPT_G_IO_BASIC,
1954         },
1955         {
1956                 .name   = "iodepth_batch_complete_max",
1957                 .lname  = "Max IO depth batch complete",
1958                 .type   = FIO_OPT_INT,
1959                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
1960                 .help   = "Max number of IO buffers to retrieve in one go",
1961                 .parent = "iodepth",
1962                 .hide   = 1,
1963                 .minval = 0,
1964                 .interval = 1,
1965                 .category = FIO_OPT_C_IO,
1966                 .group  = FIO_OPT_G_IO_BASIC,
1967         },
1968         {
1969                 .name   = "iodepth_low",
1970                 .lname  = "IO Depth batch low",
1971                 .type   = FIO_OPT_INT,
1972                 .off1   = offsetof(struct thread_options, iodepth_low),
1973                 .help   = "Low water mark for queuing depth",
1974                 .parent = "iodepth",
1975                 .hide   = 1,
1976                 .interval = 1,
1977                 .category = FIO_OPT_C_IO,
1978                 .group  = FIO_OPT_G_IO_BASIC,
1979         },
1980         {
1981                 .name   = "serialize_overlap",
1982                 .lname  = "Serialize overlap",
1983                 .off1   = offsetof(struct thread_options, serialize_overlap),
1984                 .type   = FIO_OPT_BOOL,
1985                 .help   = "Wait for in-flight IOs that collide to complete",
1986                 .parent = "iodepth",
1987                 .def    = "0",
1988                 .category = FIO_OPT_C_IO,
1989                 .group  = FIO_OPT_G_IO_BASIC,
1990         },
1991         {
1992                 .name   = "io_submit_mode",
1993                 .lname  = "IO submit mode",
1994                 .type   = FIO_OPT_STR,
1995                 .off1   = offsetof(struct thread_options, io_submit_mode),
1996                 .help   = "How IO submissions and completions are done",
1997                 .def    = "inline",
1998                 .category = FIO_OPT_C_IO,
1999                 .group  = FIO_OPT_G_IO_BASIC,
2000                 .posval = {
2001                           { .ival = "inline",
2002                             .oval = IO_MODE_INLINE,
2003                             .help = "Submit and complete IO inline",
2004                           },
2005                           { .ival = "offload",
2006                             .oval = IO_MODE_OFFLOAD,
2007                             .help = "Offload submit and complete to threads",
2008                           },
2009                 },
2010         },
2011         {
2012                 .name   = "size",
2013                 .lname  = "Size",
2014                 .type   = FIO_OPT_STR_VAL,
2015                 .cb     = str_size_cb,
2016                 .off1   = offsetof(struct thread_options, size),
2017                 .help   = "Total size of device or files",
2018                 .interval = 1024 * 1024,
2019                 .category = FIO_OPT_C_IO,
2020                 .group  = FIO_OPT_G_INVALID,
2021         },
2022         {
2023                 .name   = "io_size",
2024                 .alias  = "io_limit",
2025                 .lname  = "IO Size",
2026                 .type   = FIO_OPT_STR_VAL,
2027                 .off1   = offsetof(struct thread_options, io_size),
2028                 .help   = "Total size of I/O to be performed",
2029                 .interval = 1024 * 1024,
2030                 .category = FIO_OPT_C_IO,
2031                 .group  = FIO_OPT_G_INVALID,
2032         },
2033         {
2034                 .name   = "fill_device",
2035                 .lname  = "Fill device",
2036                 .alias  = "fill_fs",
2037                 .type   = FIO_OPT_BOOL,
2038                 .off1   = offsetof(struct thread_options, fill_device),
2039                 .help   = "Write until an ENOSPC error occurs",
2040                 .def    = "0",
2041                 .category = FIO_OPT_C_FILE,
2042                 .group  = FIO_OPT_G_INVALID,
2043         },
2044         {
2045                 .name   = "filesize",
2046                 .lname  = "File size",
2047                 .type   = FIO_OPT_STR_VAL,
2048                 .off1   = offsetof(struct thread_options, file_size_low),
2049                 .off2   = offsetof(struct thread_options, file_size_high),
2050                 .minval = 1,
2051                 .help   = "Size of individual files",
2052                 .interval = 1024 * 1024,
2053                 .category = FIO_OPT_C_FILE,
2054                 .group  = FIO_OPT_G_INVALID,
2055         },
2056         {
2057                 .name   = "file_append",
2058                 .lname  = "File append",
2059                 .type   = FIO_OPT_BOOL,
2060                 .off1   = offsetof(struct thread_options, file_append),
2061                 .help   = "IO will start at the end of the file(s)",
2062                 .def    = "0",
2063                 .category = FIO_OPT_C_FILE,
2064                 .group  = FIO_OPT_G_INVALID,
2065         },
2066         {
2067                 .name   = "offset",
2068                 .lname  = "IO offset",
2069                 .alias  = "fileoffset",
2070                 .type   = FIO_OPT_STR_VAL,
2071                 .cb     = str_offset_cb,
2072                 .off1   = offsetof(struct thread_options, start_offset),
2073                 .help   = "Start IO from this offset",
2074                 .def    = "0",
2075                 .interval = 1024 * 1024,
2076                 .category = FIO_OPT_C_IO,
2077                 .group  = FIO_OPT_G_INVALID,
2078         },
2079         {
2080                 .name   = "offset_align",
2081                 .lname  = "IO offset alignment",
2082                 .type   = FIO_OPT_INT,
2083                 .off1   = offsetof(struct thread_options, start_offset_align),
2084                 .help   = "Start IO from this offset alignment",
2085                 .def    = "0",
2086                 .interval = 512,
2087                 .category = FIO_OPT_C_IO,
2088                 .group  = FIO_OPT_G_INVALID,
2089         },
2090         {
2091                 .name   = "offset_increment",
2092                 .lname  = "IO offset increment",
2093                 .type   = FIO_OPT_STR_VAL,
2094                 .off1   = offsetof(struct thread_options, offset_increment),
2095                 .help   = "What is the increment from one offset to the next",
2096                 .parent = "offset",
2097                 .hide   = 1,
2098                 .def    = "0",
2099                 .interval = 1024 * 1024,
2100                 .category = FIO_OPT_C_IO,
2101                 .group  = FIO_OPT_G_INVALID,
2102         },
2103         {
2104                 .name   = "number_ios",
2105                 .lname  = "Number of IOs to perform",
2106                 .type   = FIO_OPT_STR_VAL,
2107                 .off1   = offsetof(struct thread_options, number_ios),
2108                 .help   = "Force job completion after this number of IOs",
2109                 .def    = "0",
2110                 .category = FIO_OPT_C_IO,
2111                 .group  = FIO_OPT_G_INVALID,
2112         },
2113         {
2114                 .name   = "bs",
2115                 .lname  = "Block size",
2116                 .alias  = "blocksize",
2117                 .type   = FIO_OPT_INT,
2118                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2119                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2120                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2121                 .minval = 1,
2122                 .help   = "Block size unit",
2123                 .def    = "4096",
2124                 .parent = "rw",
2125                 .hide   = 1,
2126                 .interval = 512,
2127                 .category = FIO_OPT_C_IO,
2128                 .group  = FIO_OPT_G_INVALID,
2129         },
2130         {
2131                 .name   = "ba",
2132                 .lname  = "Block size align",
2133                 .alias  = "blockalign",
2134                 .type   = FIO_OPT_INT,
2135                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2136                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2137                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2138                 .minval = 1,
2139                 .help   = "IO block offset alignment",
2140                 .parent = "rw",
2141                 .hide   = 1,
2142                 .interval = 512,
2143                 .category = FIO_OPT_C_IO,
2144                 .group  = FIO_OPT_G_INVALID,
2145         },
2146         {
2147                 .name   = "bsrange",
2148                 .lname  = "Block size range",
2149                 .alias  = "blocksize_range",
2150                 .type   = FIO_OPT_RANGE,
2151                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2152                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2153                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2154                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2155                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2156                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2157                 .minval = 1,
2158                 .help   = "Set block size range (in more detail than bs)",
2159                 .parent = "rw",
2160                 .hide   = 1,
2161                 .interval = 4096,
2162                 .category = FIO_OPT_C_IO,
2163                 .group  = FIO_OPT_G_INVALID,
2164         },
2165         {
2166                 .name   = "bssplit",
2167                 .lname  = "Block size split",
2168                 .type   = FIO_OPT_STR,
2169                 .cb     = str_bssplit_cb,
2170                 .off1   = offsetof(struct thread_options, bssplit),
2171                 .help   = "Set a specific mix of block sizes",
2172                 .parent = "rw",
2173                 .hide   = 1,
2174                 .category = FIO_OPT_C_IO,
2175                 .group  = FIO_OPT_G_INVALID,
2176         },
2177         {
2178                 .name   = "bs_unaligned",
2179                 .lname  = "Block size unaligned",
2180                 .alias  = "blocksize_unaligned",
2181                 .type   = FIO_OPT_STR_SET,
2182                 .off1   = offsetof(struct thread_options, bs_unaligned),
2183                 .help   = "Don't sector align IO buffer sizes",
2184                 .parent = "rw",
2185                 .hide   = 1,
2186                 .category = FIO_OPT_C_IO,
2187                 .group  = FIO_OPT_G_INVALID,
2188         },
2189         {
2190                 .name   = "bs_is_seq_rand",
2191                 .lname  = "Block size division is seq/random (not read/write)",
2192                 .type   = FIO_OPT_BOOL,
2193                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2194                 .help   = "Consider any blocksize setting to be sequential,random",
2195                 .def    = "0",
2196                 .parent = "blocksize",
2197                 .category = FIO_OPT_C_IO,
2198                 .group  = FIO_OPT_G_INVALID,
2199         },
2200         {
2201                 .name   = "randrepeat",
2202                 .lname  = "Random repeatable",
2203                 .type   = FIO_OPT_BOOL,
2204                 .off1   = offsetof(struct thread_options, rand_repeatable),
2205                 .help   = "Use repeatable random IO pattern",
2206                 .def    = "1",
2207                 .parent = "rw",
2208                 .hide   = 1,
2209                 .category = FIO_OPT_C_IO,
2210                 .group  = FIO_OPT_G_RANDOM,
2211         },
2212         {
2213                 .name   = "randseed",
2214                 .lname  = "The random generator seed",
2215                 .type   = FIO_OPT_STR_VAL,
2216                 .off1   = offsetof(struct thread_options, rand_seed),
2217                 .help   = "Set the random generator seed value",
2218                 .def    = "0x89",
2219                 .parent = "rw",
2220                 .category = FIO_OPT_C_IO,
2221                 .group  = FIO_OPT_G_RANDOM,
2222         },
2223         {
2224                 .name   = "use_os_rand",
2225                 .lname  = "Use OS random",
2226                 .type   = FIO_OPT_DEPRECATED,
2227                 .off1   = offsetof(struct thread_options, dep_use_os_rand),
2228                 .category = FIO_OPT_C_IO,
2229                 .group  = FIO_OPT_G_RANDOM,
2230         },
2231         {
2232                 .name   = "norandommap",
2233                 .lname  = "No randommap",
2234                 .type   = FIO_OPT_STR_SET,
2235                 .off1   = offsetof(struct thread_options, norandommap),
2236                 .help   = "Accept potential duplicate random blocks",
2237                 .parent = "rw",
2238                 .hide   = 1,
2239                 .hide_on_set = 1,
2240                 .category = FIO_OPT_C_IO,
2241                 .group  = FIO_OPT_G_RANDOM,
2242         },
2243         {
2244                 .name   = "softrandommap",
2245                 .lname  = "Soft randommap",
2246                 .type   = FIO_OPT_BOOL,
2247                 .off1   = offsetof(struct thread_options, softrandommap),
2248                 .help   = "Set norandommap if randommap allocation fails",
2249                 .parent = "norandommap",
2250                 .hide   = 1,
2251                 .def    = "0",
2252                 .category = FIO_OPT_C_IO,
2253                 .group  = FIO_OPT_G_RANDOM,
2254         },
2255         {
2256                 .name   = "random_generator",
2257                 .lname  = "Random Generator",
2258                 .type   = FIO_OPT_STR,
2259                 .off1   = offsetof(struct thread_options, random_generator),
2260                 .help   = "Type of random number generator to use",
2261                 .def    = "tausworthe",
2262                 .posval = {
2263                           { .ival = "tausworthe",
2264                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2265                             .help = "Strong Tausworthe generator",
2266                           },
2267                           { .ival = "lfsr",
2268                             .oval = FIO_RAND_GEN_LFSR,
2269                             .help = "Variable length LFSR",
2270                           },
2271                           {
2272                             .ival = "tausworthe64",
2273                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2274                             .help = "64-bit Tausworthe variant",
2275                           },
2276                 },
2277                 .category = FIO_OPT_C_IO,
2278                 .group  = FIO_OPT_G_RANDOM,
2279         },
2280         {
2281                 .name   = "random_distribution",
2282                 .lname  = "Random Distribution",
2283                 .type   = FIO_OPT_STR,
2284                 .off1   = offsetof(struct thread_options, random_distribution),
2285                 .cb     = str_random_distribution_cb,
2286                 .help   = "Random offset distribution generator",
2287                 .def    = "random",
2288                 .posval = {
2289                           { .ival = "random",
2290                             .oval = FIO_RAND_DIST_RANDOM,
2291                             .help = "Completely random",
2292                           },
2293                           { .ival = "zipf",
2294                             .oval = FIO_RAND_DIST_ZIPF,
2295                             .help = "Zipf distribution",
2296                           },
2297                           { .ival = "pareto",
2298                             .oval = FIO_RAND_DIST_PARETO,
2299                             .help = "Pareto distribution",
2300                           },
2301                           { .ival = "normal",
2302                             .oval = FIO_RAND_DIST_GAUSS,
2303                             .help = "Normal (Gaussian) distribution",
2304                           },
2305                           { .ival = "zoned",
2306                             .oval = FIO_RAND_DIST_ZONED,
2307                             .help = "Zoned random distribution",
2308                           },
2309                           { .ival = "zoned_abs",
2310                             .oval = FIO_RAND_DIST_ZONED_ABS,
2311                             .help = "Zoned absolute random distribution",
2312                           },
2313                 },
2314                 .category = FIO_OPT_C_IO,
2315                 .group  = FIO_OPT_G_RANDOM,
2316         },
2317         {
2318                 .name   = "percentage_random",
2319                 .lname  = "Percentage Random",
2320                 .type   = FIO_OPT_INT,
2321                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2322                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2323                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2324                 .maxval = 100,
2325                 .help   = "Percentage of seq/random mix that should be random",
2326                 .def    = "100,100,100",
2327                 .interval = 5,
2328                 .inverse = "percentage_sequential",
2329                 .category = FIO_OPT_C_IO,
2330                 .group  = FIO_OPT_G_RANDOM,
2331         },
2332         {
2333                 .name   = "percentage_sequential",
2334                 .lname  = "Percentage Sequential",
2335                 .type   = FIO_OPT_DEPRECATED,
2336                 .category = FIO_OPT_C_IO,
2337                 .group  = FIO_OPT_G_RANDOM,
2338         },
2339         {
2340                 .name   = "allrandrepeat",
2341                 .lname  = "All Random Repeat",
2342                 .type   = FIO_OPT_BOOL,
2343                 .off1   = offsetof(struct thread_options, allrand_repeatable),
2344                 .help   = "Use repeatable random numbers for everything",
2345                 .def    = "0",
2346                 .category = FIO_OPT_C_IO,
2347                 .group  = FIO_OPT_G_RANDOM,
2348         },
2349         {
2350                 .name   = "nrfiles",
2351                 .lname  = "Number of files",
2352                 .alias  = "nr_files",
2353                 .type   = FIO_OPT_INT,
2354                 .off1   = offsetof(struct thread_options, nr_files),
2355                 .help   = "Split job workload between this number of files",
2356                 .def    = "1",
2357                 .interval = 1,
2358                 .category = FIO_OPT_C_FILE,
2359                 .group  = FIO_OPT_G_INVALID,
2360         },
2361         {
2362                 .name   = "openfiles",
2363                 .lname  = "Number of open files",
2364                 .type   = FIO_OPT_INT,
2365                 .off1   = offsetof(struct thread_options, open_files),
2366                 .help   = "Number of files to keep open at the same time",
2367                 .category = FIO_OPT_C_FILE,
2368                 .group  = FIO_OPT_G_INVALID,
2369         },
2370         {
2371                 .name   = "file_service_type",
2372                 .lname  = "File service type",
2373                 .type   = FIO_OPT_STR,
2374                 .cb     = str_fst_cb,
2375                 .off1   = offsetof(struct thread_options, file_service_type),
2376                 .help   = "How to select which file to service next",
2377                 .def    = "roundrobin",
2378                 .category = FIO_OPT_C_FILE,
2379                 .group  = FIO_OPT_G_INVALID,
2380                 .posval = {
2381                           { .ival = "random",
2382                             .oval = FIO_FSERVICE_RANDOM,
2383                             .help = "Choose a file at random (uniform)",
2384                           },
2385                           { .ival = "zipf",
2386                             .oval = FIO_FSERVICE_ZIPF,
2387                             .help = "Zipf randomized",
2388                           },
2389                           { .ival = "pareto",
2390                             .oval = FIO_FSERVICE_PARETO,
2391                             .help = "Pareto randomized",
2392                           },
2393                           { .ival = "normal",
2394                             .oval = FIO_FSERVICE_GAUSS,
2395                             .help = "Normal (Gaussian) randomized",
2396                           },
2397                           { .ival = "gauss",
2398                             .oval = FIO_FSERVICE_GAUSS,
2399                             .help = "Alias for normal",
2400                           },
2401                           { .ival = "roundrobin",
2402                             .oval = FIO_FSERVICE_RR,
2403                             .help = "Round robin select files",
2404                           },
2405                           { .ival = "sequential",
2406                             .oval = FIO_FSERVICE_SEQ,
2407                             .help = "Finish one file before moving to the next",
2408                           },
2409                 },
2410                 .parent = "nrfiles",
2411                 .hide   = 1,
2412         },
2413 #ifdef FIO_HAVE_ANY_FALLOCATE
2414         {
2415                 .name   = "fallocate",
2416                 .lname  = "Fallocate",
2417                 .type   = FIO_OPT_STR,
2418                 .off1   = offsetof(struct thread_options, fallocate_mode),
2419                 .help   = "Whether pre-allocation is performed when laying out files",
2420                 .def    = "native",
2421                 .category = FIO_OPT_C_FILE,
2422                 .group  = FIO_OPT_G_INVALID,
2423                 .posval = {
2424                           { .ival = "none",
2425                             .oval = FIO_FALLOCATE_NONE,
2426                             .help = "Do not pre-allocate space",
2427                           },
2428                           { .ival = "native",
2429                             .oval = FIO_FALLOCATE_NATIVE,
2430                             .help = "Use native pre-allocation if possible",
2431                           },
2432 #ifdef CONFIG_POSIX_FALLOCATE
2433                           { .ival = "posix",
2434                             .oval = FIO_FALLOCATE_POSIX,
2435                             .help = "Use posix_fallocate()",
2436                           },
2437 #endif
2438 #ifdef CONFIG_LINUX_FALLOCATE
2439                           { .ival = "keep",
2440                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2441                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2442                           },
2443 #endif
2444                           /* Compatibility with former boolean values */
2445                           { .ival = "0",
2446                             .oval = FIO_FALLOCATE_NONE,
2447                             .help = "Alias for 'none'",
2448                           },
2449 #ifdef CONFIG_POSIX_FALLOCATE
2450                           { .ival = "1",
2451                             .oval = FIO_FALLOCATE_POSIX,
2452                             .help = "Alias for 'posix'",
2453                           },
2454 #endif
2455                 },
2456         },
2457 #else   /* FIO_HAVE_ANY_FALLOCATE */
2458         {
2459                 .name   = "fallocate",
2460                 .lname  = "Fallocate",
2461                 .type   = FIO_OPT_UNSUPPORTED,
2462                 .help   = "Your platform does not support fallocate",
2463         },
2464 #endif /* FIO_HAVE_ANY_FALLOCATE */
2465         {
2466                 .name   = "fadvise_hint",
2467                 .lname  = "Fadvise hint",
2468                 .type   = FIO_OPT_STR,
2469                 .off1   = offsetof(struct thread_options, fadvise_hint),
2470                 .posval = {
2471                           { .ival = "0",
2472                             .oval = F_ADV_NONE,
2473                             .help = "Don't issue fadvise/madvise",
2474                           },
2475                           { .ival = "1",
2476                             .oval = F_ADV_TYPE,
2477                             .help = "Advise using fio IO pattern",
2478                           },
2479                           { .ival = "random",
2480                             .oval = F_ADV_RANDOM,
2481                             .help = "Advise using FADV_RANDOM",
2482                           },
2483                           { .ival = "sequential",
2484                             .oval = F_ADV_SEQUENTIAL,
2485                             .help = "Advise using FADV_SEQUENTIAL",
2486                           },
2487                 },
2488                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2489                 .def    = "1",
2490                 .category = FIO_OPT_C_FILE,
2491                 .group  = FIO_OPT_G_INVALID,
2492         },
2493         {
2494                 .name   = "fsync",
2495                 .lname  = "Fsync",
2496                 .type   = FIO_OPT_INT,
2497                 .off1   = offsetof(struct thread_options, fsync_blocks),
2498                 .help   = "Issue fsync for writes every given number of blocks",
2499                 .def    = "0",
2500                 .interval = 1,
2501                 .category = FIO_OPT_C_FILE,
2502                 .group  = FIO_OPT_G_INVALID,
2503         },
2504         {
2505                 .name   = "fdatasync",
2506                 .lname  = "Fdatasync",
2507                 .type   = FIO_OPT_INT,
2508                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2509                 .help   = "Issue fdatasync for writes every given number of blocks",
2510                 .def    = "0",
2511                 .interval = 1,
2512                 .category = FIO_OPT_C_FILE,
2513                 .group  = FIO_OPT_G_INVALID,
2514         },
2515         {
2516                 .name   = "write_barrier",
2517                 .lname  = "Write barrier",
2518                 .type   = FIO_OPT_INT,
2519                 .off1   = offsetof(struct thread_options, barrier_blocks),
2520                 .help   = "Make every Nth write a barrier write",
2521                 .def    = "0",
2522                 .interval = 1,
2523                 .category = FIO_OPT_C_IO,
2524                 .group  = FIO_OPT_G_INVALID,
2525         },
2526 #ifdef CONFIG_SYNC_FILE_RANGE
2527         {
2528                 .name   = "sync_file_range",
2529                 .lname  = "Sync file range",
2530                 .posval = {
2531                           { .ival = "wait_before",
2532                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2533                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2534                             .orval  = 1,
2535                           },
2536                           { .ival = "write",
2537                             .oval = SYNC_FILE_RANGE_WRITE,
2538                             .help = "SYNC_FILE_RANGE_WRITE",
2539                             .orval  = 1,
2540                           },
2541                           {
2542                             .ival = "wait_after",
2543                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2544                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2545                             .orval  = 1,
2546                           },
2547                 },
2548                 .type   = FIO_OPT_STR_MULTI,
2549                 .cb     = str_sfr_cb,
2550                 .off1   = offsetof(struct thread_options, sync_file_range),
2551                 .help   = "Use sync_file_range()",
2552                 .category = FIO_OPT_C_FILE,
2553                 .group  = FIO_OPT_G_INVALID,
2554         },
2555 #else
2556         {
2557                 .name   = "sync_file_range",
2558                 .lname  = "Sync file range",
2559                 .type   = FIO_OPT_UNSUPPORTED,
2560                 .help   = "Your platform does not support sync_file_range",
2561         },
2562 #endif
2563         {
2564                 .name   = "direct",
2565                 .lname  = "Direct I/O",
2566                 .type   = FIO_OPT_BOOL,
2567                 .off1   = offsetof(struct thread_options, odirect),
2568                 .help   = "Use O_DIRECT IO (negates buffered)",
2569                 .def    = "0",
2570                 .inverse = "buffered",
2571                 .category = FIO_OPT_C_IO,
2572                 .group  = FIO_OPT_G_IO_TYPE,
2573         },
2574         {
2575                 .name   = "atomic",
2576                 .lname  = "Atomic I/O",
2577                 .type   = FIO_OPT_BOOL,
2578                 .off1   = offsetof(struct thread_options, oatomic),
2579                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2580                 .def    = "0",
2581                 .category = FIO_OPT_C_IO,
2582                 .group  = FIO_OPT_G_IO_TYPE,
2583         },
2584         {
2585                 .name   = "buffered",
2586                 .lname  = "Buffered I/O",
2587                 .type   = FIO_OPT_BOOL,
2588                 .off1   = offsetof(struct thread_options, odirect),
2589                 .neg    = 1,
2590                 .help   = "Use buffered IO (negates direct)",
2591                 .def    = "1",
2592                 .inverse = "direct",
2593                 .category = FIO_OPT_C_IO,
2594                 .group  = FIO_OPT_G_IO_TYPE,
2595         },
2596         {
2597                 .name   = "overwrite",
2598                 .lname  = "Overwrite",
2599                 .type   = FIO_OPT_BOOL,
2600                 .off1   = offsetof(struct thread_options, overwrite),
2601                 .help   = "When writing, set whether to overwrite current data",
2602                 .def    = "0",
2603                 .category = FIO_OPT_C_FILE,
2604                 .group  = FIO_OPT_G_INVALID,
2605         },
2606         {
2607                 .name   = "loops",
2608                 .lname  = "Loops",
2609                 .type   = FIO_OPT_INT,
2610                 .off1   = offsetof(struct thread_options, loops),
2611                 .help   = "Number of times to run the job",
2612                 .def    = "1",
2613                 .interval = 1,
2614                 .category = FIO_OPT_C_GENERAL,
2615                 .group  = FIO_OPT_G_RUNTIME,
2616         },
2617         {
2618                 .name   = "numjobs",
2619                 .lname  = "Number of jobs",
2620                 .type   = FIO_OPT_INT,
2621                 .off1   = offsetof(struct thread_options, numjobs),
2622                 .help   = "Duplicate this job this many times",
2623                 .def    = "1",
2624                 .interval = 1,
2625                 .category = FIO_OPT_C_GENERAL,
2626                 .group  = FIO_OPT_G_RUNTIME,
2627         },
2628         {
2629                 .name   = "startdelay",
2630                 .lname  = "Start delay",
2631                 .type   = FIO_OPT_STR_VAL_TIME,
2632                 .off1   = offsetof(struct thread_options, start_delay),
2633                 .off2   = offsetof(struct thread_options, start_delay_high),
2634                 .help   = "Only start job when this period has passed",
2635                 .def    = "0",
2636                 .is_seconds = 1,
2637                 .is_time = 1,
2638                 .category = FIO_OPT_C_GENERAL,
2639                 .group  = FIO_OPT_G_RUNTIME,
2640         },
2641         {
2642                 .name   = "runtime",
2643                 .lname  = "Runtime",
2644                 .alias  = "timeout",
2645                 .type   = FIO_OPT_STR_VAL_TIME,
2646                 .off1   = offsetof(struct thread_options, timeout),
2647                 .help   = "Stop workload when this amount of time has passed",
2648                 .def    = "0",
2649                 .is_seconds = 1,
2650                 .is_time = 1,
2651                 .category = FIO_OPT_C_GENERAL,
2652                 .group  = FIO_OPT_G_RUNTIME,
2653         },
2654         {
2655                 .name   = "time_based",
2656                 .lname  = "Time based",
2657                 .type   = FIO_OPT_STR_SET,
2658                 .off1   = offsetof(struct thread_options, time_based),
2659                 .help   = "Keep running until runtime/timeout is met",
2660                 .category = FIO_OPT_C_GENERAL,
2661                 .group  = FIO_OPT_G_RUNTIME,
2662         },
2663         {
2664                 .name   = "verify_only",
2665                 .lname  = "Verify only",
2666                 .type   = FIO_OPT_STR_SET,
2667                 .off1   = offsetof(struct thread_options, verify_only),
2668                 .help   = "Verifies previously written data is still valid",
2669                 .category = FIO_OPT_C_GENERAL,
2670                 .group  = FIO_OPT_G_RUNTIME,
2671         },
2672         {
2673                 .name   = "ramp_time",
2674                 .lname  = "Ramp time",
2675                 .type   = FIO_OPT_STR_VAL_TIME,
2676                 .off1   = offsetof(struct thread_options, ramp_time),
2677                 .help   = "Ramp up time before measuring performance",
2678                 .is_seconds = 1,
2679                 .is_time = 1,
2680                 .category = FIO_OPT_C_GENERAL,
2681                 .group  = FIO_OPT_G_RUNTIME,
2682         },
2683         {
2684                 .name   = "clocksource",
2685                 .lname  = "Clock source",
2686                 .type   = FIO_OPT_STR,
2687                 .cb     = fio_clock_source_cb,
2688                 .off1   = offsetof(struct thread_options, clocksource),
2689                 .help   = "What type of timing source to use",
2690                 .category = FIO_OPT_C_GENERAL,
2691                 .group  = FIO_OPT_G_CLOCK,
2692                 .posval = {
2693 #ifdef CONFIG_GETTIMEOFDAY
2694                           { .ival = "gettimeofday",
2695                             .oval = CS_GTOD,
2696                             .help = "Use gettimeofday(2) for timing",
2697                           },
2698 #endif
2699 #ifdef CONFIG_CLOCK_GETTIME
2700                           { .ival = "clock_gettime",
2701                             .oval = CS_CGETTIME,
2702                             .help = "Use clock_gettime(2) for timing",
2703                           },
2704 #endif
2705 #ifdef ARCH_HAVE_CPU_CLOCK
2706                           { .ival = "cpu",
2707                             .oval = CS_CPUCLOCK,
2708                             .help = "Use CPU private clock",
2709                           },
2710 #endif
2711                 },
2712         },
2713         {
2714                 .name   = "mem",
2715                 .alias  = "iomem",
2716                 .lname  = "I/O Memory",
2717                 .type   = FIO_OPT_STR,
2718                 .cb     = str_mem_cb,
2719                 .off1   = offsetof(struct thread_options, mem_type),
2720                 .help   = "Backing type for IO buffers",
2721                 .def    = "malloc",
2722                 .category = FIO_OPT_C_IO,
2723                 .group  = FIO_OPT_G_INVALID,
2724                 .posval = {
2725                           { .ival = "malloc",
2726                             .oval = MEM_MALLOC,
2727                             .help = "Use malloc(3) for IO buffers",
2728                           },
2729 #ifndef CONFIG_NO_SHM
2730                           { .ival = "shm",
2731                             .oval = MEM_SHM,
2732                             .help = "Use shared memory segments for IO buffers",
2733                           },
2734 #ifdef FIO_HAVE_HUGETLB
2735                           { .ival = "shmhuge",
2736                             .oval = MEM_SHMHUGE,
2737                             .help = "Like shm, but use huge pages",
2738                           },
2739 #endif
2740 #endif
2741                           { .ival = "mmap",
2742                             .oval = MEM_MMAP,
2743                             .help = "Use mmap(2) (file or anon) for IO buffers",
2744                           },
2745                           { .ival = "mmapshared",
2746                             .oval = MEM_MMAPSHARED,
2747                             .help = "Like mmap, but use the shared flag",
2748                           },
2749 #ifdef FIO_HAVE_HUGETLB
2750                           { .ival = "mmaphuge",
2751                             .oval = MEM_MMAPHUGE,
2752                             .help = "Like mmap, but use huge pages",
2753                           },
2754 #endif
2755 #ifdef CONFIG_CUDA
2756                           { .ival = "cudamalloc",
2757                             .oval = MEM_CUDA_MALLOC,
2758                             .help = "Allocate GPU device memory for GPUDirect RDMA",
2759                           },
2760 #endif
2761                   },
2762         },
2763         {
2764                 .name   = "iomem_align",
2765                 .alias  = "mem_align",
2766                 .lname  = "I/O memory alignment",
2767                 .type   = FIO_OPT_INT,
2768                 .off1   = offsetof(struct thread_options, mem_align),
2769                 .minval = 0,
2770                 .help   = "IO memory buffer offset alignment",
2771                 .def    = "0",
2772                 .parent = "iomem",
2773                 .hide   = 1,
2774                 .category = FIO_OPT_C_IO,
2775                 .group  = FIO_OPT_G_INVALID,
2776         },
2777         {
2778                 .name   = "verify",
2779                 .lname  = "Verify",
2780                 .type   = FIO_OPT_STR,
2781                 .off1   = offsetof(struct thread_options, verify),
2782                 .help   = "Verify data written",
2783                 .def    = "0",
2784                 .category = FIO_OPT_C_IO,
2785                 .group  = FIO_OPT_G_VERIFY,
2786                 .posval = {
2787                           { .ival = "0",
2788                             .oval = VERIFY_NONE,
2789                             .help = "Don't do IO verification",
2790                           },
2791                           { .ival = "md5",
2792                             .oval = VERIFY_MD5,
2793                             .help = "Use md5 checksums for verification",
2794                           },
2795                           { .ival = "crc64",
2796                             .oval = VERIFY_CRC64,
2797                             .help = "Use crc64 checksums for verification",
2798                           },
2799                           { .ival = "crc32",
2800                             .oval = VERIFY_CRC32,
2801                             .help = "Use crc32 checksums for verification",
2802                           },
2803                           { .ival = "crc32c-intel",
2804                             .oval = VERIFY_CRC32C,
2805                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2806                           },
2807                           { .ival = "crc32c",
2808                             .oval = VERIFY_CRC32C,
2809                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2810                           },
2811                           { .ival = "crc16",
2812                             .oval = VERIFY_CRC16,
2813                             .help = "Use crc16 checksums for verification",
2814                           },
2815                           { .ival = "crc7",
2816                             .oval = VERIFY_CRC7,
2817                             .help = "Use crc7 checksums for verification",
2818                           },
2819                           { .ival = "sha1",
2820                             .oval = VERIFY_SHA1,
2821                             .help = "Use sha1 checksums for verification",
2822                           },
2823                           { .ival = "sha256",
2824                             .oval = VERIFY_SHA256,
2825                             .help = "Use sha256 checksums for verification",
2826                           },
2827                           { .ival = "sha512",
2828                             .oval = VERIFY_SHA512,
2829                             .help = "Use sha512 checksums for verification",
2830                           },
2831                           { .ival = "sha3-224",
2832                             .oval = VERIFY_SHA3_224,
2833                             .help = "Use sha3-224 checksums for verification",
2834                           },
2835                           { .ival = "sha3-256",
2836                             .oval = VERIFY_SHA3_256,
2837                             .help = "Use sha3-256 checksums for verification",
2838                           },
2839                           { .ival = "sha3-384",
2840                             .oval = VERIFY_SHA3_384,
2841                             .help = "Use sha3-384 checksums for verification",
2842                           },
2843                           { .ival = "sha3-512",
2844                             .oval = VERIFY_SHA3_512,
2845                             .help = "Use sha3-512 checksums for verification",
2846                           },
2847                           { .ival = "xxhash",
2848                             .oval = VERIFY_XXHASH,
2849                             .help = "Use xxhash checksums for verification",
2850                           },
2851                           /* Meta information was included into verify_header,
2852                            * 'meta' verification is implied by default. */
2853                           { .ival = "meta",
2854                             .oval = VERIFY_HDR_ONLY,
2855                             .help = "Use io information for verification. "
2856                                     "Now is implied by default, thus option is obsolete, "
2857                                     "don't use it",
2858                           },
2859                           { .ival = "pattern",
2860                             .oval = VERIFY_PATTERN_NO_HDR,
2861                             .help = "Verify strict pattern",
2862                           },
2863                           {
2864                             .ival = "null",
2865                             .oval = VERIFY_NULL,
2866                             .help = "Pretend to verify",
2867                           },
2868                 },
2869         },
2870         {
2871                 .name   = "do_verify",
2872                 .lname  = "Perform verify step",
2873                 .type   = FIO_OPT_BOOL,
2874                 .off1   = offsetof(struct thread_options, do_verify),
2875                 .help   = "Run verification stage after write",
2876                 .def    = "1",
2877                 .parent = "verify",
2878                 .hide   = 1,
2879                 .category = FIO_OPT_C_IO,
2880                 .group  = FIO_OPT_G_VERIFY,
2881         },
2882         {
2883                 .name   = "verifysort",
2884                 .lname  = "Verify sort",
2885                 .type   = FIO_OPT_SOFT_DEPRECATED,
2886                 .category = FIO_OPT_C_IO,
2887                 .group  = FIO_OPT_G_VERIFY,
2888         },
2889         {
2890                 .name   = "verifysort_nr",
2891                 .lname  = "Verify Sort Nr",
2892                 .type   = FIO_OPT_SOFT_DEPRECATED,
2893                 .category = FIO_OPT_C_IO,
2894                 .group  = FIO_OPT_G_VERIFY,
2895         },
2896         {
2897                 .name   = "verify_interval",
2898                 .lname  = "Verify interval",
2899                 .type   = FIO_OPT_INT,
2900                 .off1   = offsetof(struct thread_options, verify_interval),
2901                 .minval = 2 * sizeof(struct verify_header),
2902                 .help   = "Store verify buffer header every N bytes",
2903                 .parent = "verify",
2904                 .hide   = 1,
2905                 .interval = 2 * sizeof(struct verify_header),
2906                 .category = FIO_OPT_C_IO,
2907                 .group  = FIO_OPT_G_VERIFY,
2908         },
2909         {
2910                 .name   = "verify_offset",
2911                 .lname  = "Verify offset",
2912                 .type   = FIO_OPT_INT,
2913                 .help   = "Offset verify header location by N bytes",
2914                 .off1   = offsetof(struct thread_options, verify_offset),
2915                 .minval = sizeof(struct verify_header),
2916                 .parent = "verify",
2917                 .hide   = 1,
2918                 .category = FIO_OPT_C_IO,
2919                 .group  = FIO_OPT_G_VERIFY,
2920         },
2921         {
2922                 .name   = "verify_pattern",
2923                 .lname  = "Verify pattern",
2924                 .type   = FIO_OPT_STR,
2925                 .cb     = str_verify_pattern_cb,
2926                 .off1   = offsetof(struct thread_options, verify_pattern),
2927                 .help   = "Fill pattern for IO buffers",
2928                 .parent = "verify",
2929                 .hide   = 1,
2930                 .category = FIO_OPT_C_IO,
2931                 .group  = FIO_OPT_G_VERIFY,
2932         },
2933         {
2934                 .name   = "verify_fatal",
2935                 .lname  = "Verify fatal",
2936                 .type   = FIO_OPT_BOOL,
2937                 .off1   = offsetof(struct thread_options, verify_fatal),
2938                 .def    = "0",
2939                 .help   = "Exit on a single verify failure, don't continue",
2940                 .parent = "verify",
2941                 .hide   = 1,
2942                 .category = FIO_OPT_C_IO,
2943                 .group  = FIO_OPT_G_VERIFY,
2944         },
2945         {
2946                 .name   = "verify_dump",
2947                 .lname  = "Verify dump",
2948                 .type   = FIO_OPT_BOOL,
2949                 .off1   = offsetof(struct thread_options, verify_dump),
2950                 .def    = "0",
2951                 .help   = "Dump contents of good and bad blocks on failure",
2952                 .parent = "verify",
2953                 .hide   = 1,
2954                 .category = FIO_OPT_C_IO,
2955                 .group  = FIO_OPT_G_VERIFY,
2956         },
2957         {
2958                 .name   = "verify_async",
2959                 .lname  = "Verify asynchronously",
2960                 .type   = FIO_OPT_INT,
2961                 .off1   = offsetof(struct thread_options, verify_async),
2962                 .def    = "0",
2963                 .help   = "Number of async verifier threads to use",
2964                 .parent = "verify",
2965                 .hide   = 1,
2966                 .category = FIO_OPT_C_IO,
2967                 .group  = FIO_OPT_G_VERIFY,
2968         },
2969         {
2970                 .name   = "verify_backlog",
2971                 .lname  = "Verify backlog",
2972                 .type   = FIO_OPT_STR_VAL,
2973                 .off1   = offsetof(struct thread_options, verify_backlog),
2974                 .help   = "Verify after this number of blocks are written",
2975                 .parent = "verify",
2976                 .hide   = 1,
2977                 .category = FIO_OPT_C_IO,
2978                 .group  = FIO_OPT_G_VERIFY,
2979         },
2980         {
2981                 .name   = "verify_backlog_batch",
2982                 .lname  = "Verify backlog batch",
2983                 .type   = FIO_OPT_INT,
2984                 .off1   = offsetof(struct thread_options, verify_batch),
2985                 .help   = "Verify this number of IO blocks",
2986                 .parent = "verify",
2987                 .hide   = 1,
2988                 .category = FIO_OPT_C_IO,
2989                 .group  = FIO_OPT_G_VERIFY,
2990         },
2991 #ifdef FIO_HAVE_CPU_AFFINITY
2992         {
2993                 .name   = "verify_async_cpus",
2994                 .lname  = "Async verify CPUs",
2995                 .type   = FIO_OPT_STR,
2996                 .cb     = str_verify_cpus_allowed_cb,
2997                 .off1   = offsetof(struct thread_options, verify_cpumask),
2998                 .help   = "Set CPUs allowed for async verify threads",
2999                 .parent = "verify_async",
3000                 .hide   = 1,
3001                 .category = FIO_OPT_C_IO,
3002                 .group  = FIO_OPT_G_VERIFY,
3003         },
3004 #else
3005         {
3006                 .name   = "verify_async_cpus",
3007                 .lname  = "Async verify CPUs",
3008                 .type   = FIO_OPT_UNSUPPORTED,
3009                 .help   = "Your platform does not support CPU affinities",
3010         },
3011 #endif
3012         {
3013                 .name   = "experimental_verify",
3014                 .lname  = "Experimental Verify",
3015                 .off1   = offsetof(struct thread_options, experimental_verify),
3016                 .type   = FIO_OPT_BOOL,
3017                 .help   = "Enable experimental verification",
3018                 .parent = "verify",
3019                 .category = FIO_OPT_C_IO,
3020                 .group  = FIO_OPT_G_VERIFY,
3021         },
3022         {
3023                 .name   = "verify_state_load",
3024                 .lname  = "Load verify state",
3025                 .off1   = offsetof(struct thread_options, verify_state),
3026                 .type   = FIO_OPT_BOOL,
3027                 .help   = "Load verify termination state",
3028                 .parent = "verify",
3029                 .category = FIO_OPT_C_IO,
3030                 .group  = FIO_OPT_G_VERIFY,
3031         },
3032         {
3033                 .name   = "verify_state_save",
3034                 .lname  = "Save verify state",
3035                 .off1   = offsetof(struct thread_options, verify_state_save),
3036                 .type   = FIO_OPT_BOOL,
3037                 .def    = "1",
3038                 .help   = "Save verify state on termination",
3039                 .parent = "verify",
3040                 .category = FIO_OPT_C_IO,
3041                 .group  = FIO_OPT_G_VERIFY,
3042         },
3043 #ifdef FIO_HAVE_TRIM
3044         {
3045                 .name   = "trim_percentage",
3046                 .lname  = "Trim percentage",
3047                 .type   = FIO_OPT_INT,
3048                 .off1   = offsetof(struct thread_options, trim_percentage),
3049                 .minval = 0,
3050                 .maxval = 100,
3051                 .help   = "Number of verify blocks to trim (i.e., discard)",
3052                 .parent = "verify",
3053                 .def    = "0",
3054                 .interval = 1,
3055                 .hide   = 1,
3056                 .category = FIO_OPT_C_IO,
3057                 .group  = FIO_OPT_G_TRIM,
3058         },
3059         {
3060                 .name   = "trim_verify_zero",
3061                 .lname  = "Verify trim zero",
3062                 .type   = FIO_OPT_BOOL,
3063                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3064                 .off1   = offsetof(struct thread_options, trim_zero),
3065                 .parent = "trim_percentage",
3066                 .hide   = 1,
3067                 .def    = "1",
3068                 .category = FIO_OPT_C_IO,
3069                 .group  = FIO_OPT_G_TRIM,
3070         },
3071         {
3072                 .name   = "trim_backlog",
3073                 .lname  = "Trim backlog",
3074                 .type   = FIO_OPT_STR_VAL,
3075                 .off1   = offsetof(struct thread_options, trim_backlog),
3076                 .help   = "Trim after this number of blocks are written",
3077                 .parent = "trim_percentage",
3078                 .hide   = 1,
3079                 .interval = 1,
3080                 .category = FIO_OPT_C_IO,
3081                 .group  = FIO_OPT_G_TRIM,
3082         },
3083         {
3084                 .name   = "trim_backlog_batch",
3085                 .lname  = "Trim backlog batch",
3086                 .type   = FIO_OPT_INT,
3087                 .off1   = offsetof(struct thread_options, trim_batch),
3088                 .help   = "Trim this number of IO blocks",
3089                 .parent = "trim_percentage",
3090                 .hide   = 1,
3091                 .interval = 1,
3092                 .category = FIO_OPT_C_IO,
3093                 .group  = FIO_OPT_G_TRIM,
3094         },
3095 #else
3096         {
3097                 .name   = "trim_percentage",
3098                 .lname  = "Trim percentage",
3099                 .type   = FIO_OPT_UNSUPPORTED,
3100                 .help   = "Fio does not support TRIM on your platform",
3101         },
3102         {
3103                 .name   = "trim_verify_zero",
3104                 .lname  = "Verify trim zero",
3105                 .type   = FIO_OPT_UNSUPPORTED,
3106                 .help   = "Fio does not support TRIM on your platform",
3107         },
3108         {
3109                 .name   = "trim_backlog",
3110                 .lname  = "Trim backlog",
3111                 .type   = FIO_OPT_UNSUPPORTED,
3112                 .help   = "Fio does not support TRIM on your platform",
3113         },
3114         {
3115                 .name   = "trim_backlog_batch",
3116                 .lname  = "Trim backlog batch",
3117                 .type   = FIO_OPT_UNSUPPORTED,
3118                 .help   = "Fio does not support TRIM on your platform",
3119         },
3120 #endif
3121         {
3122                 .name   = "write_iolog",
3123                 .lname  = "Write I/O log",
3124                 .type   = FIO_OPT_STR_STORE,
3125                 .off1   = offsetof(struct thread_options, write_iolog_file),
3126                 .help   = "Store IO pattern to file",
3127                 .category = FIO_OPT_C_IO,
3128                 .group  = FIO_OPT_G_IOLOG,
3129         },
3130         {
3131                 .name   = "read_iolog",
3132                 .lname  = "Read I/O log",
3133                 .type   = FIO_OPT_STR_STORE,
3134                 .off1   = offsetof(struct thread_options, read_iolog_file),
3135                 .help   = "Playback IO pattern from file",
3136                 .category = FIO_OPT_C_IO,
3137                 .group  = FIO_OPT_G_IOLOG,
3138         },
3139         {
3140                 .name   = "replay_no_stall",
3141                 .lname  = "Don't stall on replay",
3142                 .type   = FIO_OPT_BOOL,
3143                 .off1   = offsetof(struct thread_options, no_stall),
3144                 .def    = "0",
3145                 .parent = "read_iolog",
3146                 .hide   = 1,
3147                 .help   = "Playback IO pattern file as fast as possible without stalls",
3148                 .category = FIO_OPT_C_IO,
3149                 .group  = FIO_OPT_G_IOLOG,
3150         },
3151         {
3152                 .name   = "replay_redirect",
3153                 .lname  = "Redirect device for replay",
3154                 .type   = FIO_OPT_STR_STORE,
3155                 .off1   = offsetof(struct thread_options, replay_redirect),
3156                 .parent = "read_iolog",
3157                 .hide   = 1,
3158                 .help   = "Replay all I/O onto this device, regardless of trace device",
3159                 .category = FIO_OPT_C_IO,
3160                 .group  = FIO_OPT_G_IOLOG,
3161         },
3162         {
3163                 .name   = "replay_scale",
3164                 .lname  = "Replace offset scale factor",
3165                 .type   = FIO_OPT_INT,
3166                 .off1   = offsetof(struct thread_options, replay_scale),
3167                 .parent = "read_iolog",
3168                 .def    = "1",
3169                 .help   = "Align offsets to this blocksize",
3170                 .category = FIO_OPT_C_IO,
3171                 .group  = FIO_OPT_G_IOLOG,
3172         },
3173         {
3174                 .name   = "replay_align",
3175                 .lname  = "Replace alignment",
3176                 .type   = FIO_OPT_INT,
3177                 .off1   = offsetof(struct thread_options, replay_align),
3178                 .parent = "read_iolog",
3179                 .help   = "Scale offset down by this factor",
3180                 .category = FIO_OPT_C_IO,
3181                 .group  = FIO_OPT_G_IOLOG,
3182                 .pow2   = 1,
3183         },
3184         {
3185                 .name   = "replay_time_scale",
3186                 .lname  = "Replay Time Scale",
3187                 .type   = FIO_OPT_INT,
3188                 .off1   = offsetof(struct thread_options, replay_time_scale),
3189                 .def    = "100",
3190                 .minval = 1,
3191                 .parent = "read_iolog",
3192                 .hide   = 1,
3193                 .help   = "Scale time for replay events",
3194                 .category = FIO_OPT_C_IO,
3195                 .group  = FIO_OPT_G_IOLOG,
3196         },
3197         {
3198                 .name   = "replay_skip",
3199                 .lname  = "Replay Skip",
3200                 .type   = FIO_OPT_STR,
3201                 .cb     = str_replay_skip_cb,
3202                 .off1   = offsetof(struct thread_options, replay_skip),
3203                 .parent = "read_iolog",
3204                 .help   = "Skip certain IO types (read,write,trim,flush)",
3205                 .category = FIO_OPT_C_IO,
3206                 .group  = FIO_OPT_G_IOLOG,
3207         },
3208         {
3209                 .name   = "exec_prerun",
3210                 .lname  = "Pre-execute runnable",
3211                 .type   = FIO_OPT_STR_STORE,
3212                 .off1   = offsetof(struct thread_options, exec_prerun),
3213                 .help   = "Execute this file prior to running job",
3214                 .category = FIO_OPT_C_GENERAL,
3215                 .group  = FIO_OPT_G_INVALID,
3216         },
3217         {
3218                 .name   = "exec_postrun",
3219                 .lname  = "Post-execute runnable",
3220                 .type   = FIO_OPT_STR_STORE,
3221                 .off1   = offsetof(struct thread_options, exec_postrun),
3222                 .help   = "Execute this file after running job",
3223                 .category = FIO_OPT_C_GENERAL,
3224                 .group  = FIO_OPT_G_INVALID,
3225         },
3226 #ifdef FIO_HAVE_IOSCHED_SWITCH
3227         {
3228                 .name   = "ioscheduler",
3229                 .lname  = "I/O scheduler",
3230                 .type   = FIO_OPT_STR_STORE,
3231                 .off1   = offsetof(struct thread_options, ioscheduler),
3232                 .help   = "Use this IO scheduler on the backing device",
3233                 .category = FIO_OPT_C_FILE,
3234                 .group  = FIO_OPT_G_INVALID,
3235         },
3236 #else
3237         {
3238                 .name   = "ioscheduler",
3239                 .lname  = "I/O scheduler",
3240                 .type   = FIO_OPT_UNSUPPORTED,
3241                 .help   = "Your platform does not support IO scheduler switching",
3242         },
3243 #endif
3244         {
3245                 .name   = "zonesize",
3246                 .lname  = "Zone size",
3247                 .type   = FIO_OPT_STR_VAL,
3248                 .off1   = offsetof(struct thread_options, zone_size),
3249                 .help   = "Amount of data to read per zone",
3250                 .def    = "0",
3251                 .interval = 1024 * 1024,
3252                 .category = FIO_OPT_C_IO,
3253                 .group  = FIO_OPT_G_ZONE,
3254         },
3255         {
3256                 .name   = "zonerange",
3257                 .lname  = "Zone range",
3258                 .type   = FIO_OPT_STR_VAL,
3259                 .off1   = offsetof(struct thread_options, zone_range),
3260                 .help   = "Give size of an IO zone",
3261                 .def    = "0",
3262                 .interval = 1024 * 1024,
3263                 .category = FIO_OPT_C_IO,
3264                 .group  = FIO_OPT_G_ZONE,
3265         },
3266         {
3267                 .name   = "zoneskip",
3268                 .lname  = "Zone skip",
3269                 .type   = FIO_OPT_STR_VAL,
3270                 .off1   = offsetof(struct thread_options, zone_skip),
3271                 .help   = "Space between IO zones",
3272                 .def    = "0",
3273                 .interval = 1024 * 1024,
3274                 .category = FIO_OPT_C_IO,
3275                 .group  = FIO_OPT_G_ZONE,
3276         },
3277         {
3278                 .name   = "lockmem",
3279                 .lname  = "Lock memory",
3280                 .type   = FIO_OPT_STR_VAL,
3281                 .off1   = offsetof(struct thread_options, lockmem),
3282                 .help   = "Lock down this amount of memory (per worker)",
3283                 .def    = "0",
3284                 .interval = 1024 * 1024,
3285                 .category = FIO_OPT_C_GENERAL,
3286                 .group  = FIO_OPT_G_INVALID,
3287         },
3288         {
3289                 .name   = "rwmixread",
3290                 .lname  = "Read/write mix read",
3291                 .type   = FIO_OPT_INT,
3292                 .cb     = str_rwmix_read_cb,
3293                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3294                 .maxval = 100,
3295                 .help   = "Percentage of mixed workload that is reads",
3296                 .def    = "50",
3297                 .interval = 5,
3298                 .inverse = "rwmixwrite",
3299                 .category = FIO_OPT_C_IO,
3300                 .group  = FIO_OPT_G_RWMIX,
3301         },
3302         {
3303                 .name   = "rwmixwrite",
3304                 .lname  = "Read/write mix write",
3305                 .type   = FIO_OPT_INT,
3306                 .cb     = str_rwmix_write_cb,
3307                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3308                 .maxval = 100,
3309                 .help   = "Percentage of mixed workload that is writes",
3310                 .def    = "50",
3311                 .interval = 5,
3312                 .inverse = "rwmixread",
3313                 .category = FIO_OPT_C_IO,
3314                 .group  = FIO_OPT_G_RWMIX,
3315         },
3316         {
3317                 .name   = "rwmixcycle",
3318                 .lname  = "Read/write mix cycle",
3319                 .type   = FIO_OPT_DEPRECATED,
3320                 .category = FIO_OPT_C_IO,
3321                 .group  = FIO_OPT_G_RWMIX,
3322         },
3323         {
3324                 .name   = "nice",
3325                 .lname  = "Nice",
3326                 .type   = FIO_OPT_INT,
3327                 .off1   = offsetof(struct thread_options, nice),
3328                 .help   = "Set job CPU nice value",
3329                 .minval = -20,
3330                 .maxval = 19,
3331                 .def    = "0",
3332                 .interval = 1,
3333                 .category = FIO_OPT_C_GENERAL,
3334                 .group  = FIO_OPT_G_CRED,
3335         },
3336 #ifdef FIO_HAVE_IOPRIO
3337         {
3338                 .name   = "prio",
3339                 .lname  = "I/O nice priority",
3340                 .type   = FIO_OPT_INT,
3341                 .off1   = offsetof(struct thread_options, ioprio),
3342                 .help   = "Set job IO priority value",
3343                 .minval = IOPRIO_MIN_PRIO,
3344                 .maxval = IOPRIO_MAX_PRIO,
3345                 .interval = 1,
3346                 .category = FIO_OPT_C_GENERAL,
3347                 .group  = FIO_OPT_G_CRED,
3348         },
3349 #else
3350         {
3351                 .name   = "prio",
3352                 .lname  = "I/O nice priority",
3353                 .type   = FIO_OPT_UNSUPPORTED,
3354                 .help   = "Your platform does not support IO priorities",
3355         },
3356 #endif
3357 #ifdef FIO_HAVE_IOPRIO_CLASS
3358 #ifndef FIO_HAVE_IOPRIO
3359 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3360 #endif
3361         {
3362                 .name   = "prioclass",
3363                 .lname  = "I/O nice priority class",
3364                 .type   = FIO_OPT_INT,
3365                 .off1   = offsetof(struct thread_options, ioprio_class),
3366                 .help   = "Set job IO priority class",
3367                 .minval = IOPRIO_MIN_PRIO_CLASS,
3368                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3369                 .interval = 1,
3370                 .category = FIO_OPT_C_GENERAL,
3371                 .group  = FIO_OPT_G_CRED,
3372         },
3373 #else
3374         {
3375                 .name   = "prioclass",
3376                 .lname  = "I/O nice priority class",
3377                 .type   = FIO_OPT_UNSUPPORTED,
3378                 .help   = "Your platform does not support IO priority classes",
3379         },
3380 #endif
3381         {
3382                 .name   = "thinktime",
3383                 .lname  = "Thinktime",
3384                 .type   = FIO_OPT_INT,
3385                 .off1   = offsetof(struct thread_options, thinktime),
3386                 .help   = "Idle time between IO buffers (usec)",
3387                 .def    = "0",
3388                 .is_time = 1,
3389                 .category = FIO_OPT_C_IO,
3390                 .group  = FIO_OPT_G_THINKTIME,
3391         },
3392         {
3393                 .name   = "thinktime_spin",
3394                 .lname  = "Thinktime spin",
3395                 .type   = FIO_OPT_INT,
3396                 .off1   = offsetof(struct thread_options, thinktime_spin),
3397                 .help   = "Start think time by spinning this amount (usec)",
3398                 .def    = "0",
3399                 .is_time = 1,
3400                 .parent = "thinktime",
3401                 .hide   = 1,
3402                 .category = FIO_OPT_C_IO,
3403                 .group  = FIO_OPT_G_THINKTIME,
3404         },
3405         {
3406                 .name   = "thinktime_blocks",
3407                 .lname  = "Thinktime blocks",
3408                 .type   = FIO_OPT_INT,
3409                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3410                 .help   = "IO buffer period between 'thinktime'",
3411                 .def    = "1",
3412                 .parent = "thinktime",
3413                 .hide   = 1,
3414                 .category = FIO_OPT_C_IO,
3415                 .group  = FIO_OPT_G_THINKTIME,
3416         },
3417         {
3418                 .name   = "rate",
3419                 .lname  = "I/O rate",
3420                 .type   = FIO_OPT_INT,
3421                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3422                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3423                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3424                 .help   = "Set bandwidth rate",
3425                 .category = FIO_OPT_C_IO,
3426                 .group  = FIO_OPT_G_RATE,
3427         },
3428         {
3429                 .name   = "rate_min",
3430                 .alias  = "ratemin",
3431                 .lname  = "I/O min rate",
3432                 .type   = FIO_OPT_INT,
3433                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3434                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3435                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3436                 .help   = "Job must meet this rate or it will be shutdown",
3437                 .parent = "rate",
3438                 .hide   = 1,
3439                 .category = FIO_OPT_C_IO,
3440                 .group  = FIO_OPT_G_RATE,
3441         },
3442         {
3443                 .name   = "rate_iops",
3444                 .lname  = "I/O rate IOPS",
3445                 .type   = FIO_OPT_INT,
3446                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3447                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3448                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3449                 .help   = "Limit IO used to this number of IO operations/sec",
3450                 .hide   = 1,
3451                 .category = FIO_OPT_C_IO,
3452                 .group  = FIO_OPT_G_RATE,
3453         },
3454         {
3455                 .name   = "rate_iops_min",
3456                 .lname  = "I/O min rate IOPS",
3457                 .type   = FIO_OPT_INT,
3458                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3459                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3460                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3461                 .help   = "Job must meet this rate or it will be shut down",
3462                 .parent = "rate_iops",
3463                 .hide   = 1,
3464                 .category = FIO_OPT_C_IO,
3465                 .group  = FIO_OPT_G_RATE,
3466         },
3467         {
3468                 .name   = "rate_process",
3469                 .lname  = "Rate Process",
3470                 .type   = FIO_OPT_STR,
3471                 .off1   = offsetof(struct thread_options, rate_process),
3472                 .help   = "What process controls how rated IO is managed",
3473                 .def    = "linear",
3474                 .category = FIO_OPT_C_IO,
3475                 .group  = FIO_OPT_G_RATE,
3476                 .posval = {
3477                           { .ival = "linear",
3478                             .oval = RATE_PROCESS_LINEAR,
3479                             .help = "Linear rate of IO",
3480                           },
3481                           {
3482                             .ival = "poisson",
3483                             .oval = RATE_PROCESS_POISSON,
3484                             .help = "Rate follows Poisson process",
3485                           },
3486                 },
3487                 .parent = "rate",
3488         },
3489         {
3490                 .name   = "rate_cycle",
3491                 .alias  = "ratecycle",
3492                 .lname  = "I/O rate cycle",
3493                 .type   = FIO_OPT_INT,
3494                 .off1   = offsetof(struct thread_options, ratecycle),
3495                 .help   = "Window average for rate limits (msec)",
3496                 .def    = "1000",
3497                 .parent = "rate",
3498                 .hide   = 1,
3499                 .category = FIO_OPT_C_IO,
3500                 .group  = FIO_OPT_G_RATE,
3501         },
3502         {
3503                 .name   = "rate_ignore_thinktime",
3504                 .lname  = "Rate ignore thinktime",
3505                 .type   = FIO_OPT_BOOL,
3506                 .off1   = offsetof(struct thread_options, rate_ign_think),
3507                 .help   = "Rated IO ignores thinktime settings",
3508                 .parent = "rate",
3509                 .category = FIO_OPT_C_IO,
3510                 .group  = FIO_OPT_G_RATE,
3511         },
3512         {
3513                 .name   = "max_latency",
3514                 .lname  = "Max Latency (usec)",
3515                 .type   = FIO_OPT_STR_VAL_TIME,
3516                 .off1   = offsetof(struct thread_options, max_latency),
3517                 .help   = "Maximum tolerated IO latency (usec)",
3518                 .is_time = 1,
3519                 .category = FIO_OPT_C_IO,
3520                 .group = FIO_OPT_G_LATPROF,
3521         },
3522         {
3523                 .name   = "latency_target",
3524                 .lname  = "Latency Target (usec)",
3525                 .type   = FIO_OPT_STR_VAL_TIME,
3526                 .off1   = offsetof(struct thread_options, latency_target),
3527                 .help   = "Ramp to max queue depth supporting this latency",
3528                 .is_time = 1,
3529                 .category = FIO_OPT_C_IO,
3530                 .group  = FIO_OPT_G_LATPROF,
3531         },
3532         {
3533                 .name   = "latency_window",
3534                 .lname  = "Latency Window (usec)",
3535                 .type   = FIO_OPT_STR_VAL_TIME,
3536                 .off1   = offsetof(struct thread_options, latency_window),
3537                 .help   = "Time to sustain latency_target",
3538                 .is_time = 1,
3539                 .category = FIO_OPT_C_IO,
3540                 .group  = FIO_OPT_G_LATPROF,
3541         },
3542         {
3543                 .name   = "latency_percentile",
3544                 .lname  = "Latency Percentile",
3545                 .type   = FIO_OPT_FLOAT_LIST,
3546                 .off1   = offsetof(struct thread_options, latency_percentile),
3547                 .help   = "Percentile of IOs must be below latency_target",
3548                 .def    = "100",
3549                 .maxlen = 1,
3550                 .minfp  = 0.0,
3551                 .maxfp  = 100.0,
3552                 .category = FIO_OPT_C_IO,
3553                 .group  = FIO_OPT_G_LATPROF,
3554         },
3555         {
3556                 .name   = "invalidate",
3557                 .lname  = "Cache invalidate",
3558                 .type   = FIO_OPT_BOOL,
3559                 .off1   = offsetof(struct thread_options, invalidate_cache),
3560                 .help   = "Invalidate buffer/page cache prior to running job",
3561                 .def    = "1",
3562                 .category = FIO_OPT_C_IO,
3563                 .group  = FIO_OPT_G_IO_TYPE,
3564         },
3565         {
3566                 .name   = "sync",
3567                 .lname  = "Synchronous I/O",
3568                 .type   = FIO_OPT_BOOL,
3569                 .off1   = offsetof(struct thread_options, sync_io),
3570                 .help   = "Use O_SYNC for buffered writes",
3571                 .def    = "0",
3572                 .parent = "buffered",
3573                 .hide   = 1,
3574                 .category = FIO_OPT_C_IO,
3575                 .group  = FIO_OPT_G_IO_TYPE,
3576         },
3577 #ifdef FIO_HAVE_WRITE_HINT
3578         {
3579                 .name   = "write_hint",
3580                 .lname  = "Write hint",
3581                 .type   = FIO_OPT_STR,
3582                 .off1   = offsetof(struct thread_options, write_hint),
3583                 .help   = "Set expected write life time",
3584                 .category = FIO_OPT_C_ENGINE,
3585                 .group  = FIO_OPT_G_INVALID,
3586                 .posval = {
3587                           { .ival = "none",
3588                             .oval = RWH_WRITE_LIFE_NONE,
3589                           },
3590                           { .ival = "short",
3591                             .oval = RWH_WRITE_LIFE_SHORT,
3592                           },
3593                           { .ival = "medium",
3594                             .oval = RWH_WRITE_LIFE_MEDIUM,
3595                           },
3596                           { .ival = "long",
3597                             .oval = RWH_WRITE_LIFE_LONG,
3598                           },
3599                           { .ival = "extreme",
3600                             .oval = RWH_WRITE_LIFE_EXTREME,
3601                           },
3602                 },
3603         },
3604 #endif
3605         {
3606                 .name   = "create_serialize",
3607                 .lname  = "Create serialize",
3608                 .type   = FIO_OPT_BOOL,
3609                 .off1   = offsetof(struct thread_options, create_serialize),
3610                 .help   = "Serialize creation of job files",
3611                 .def    = "1",
3612                 .category = FIO_OPT_C_FILE,
3613                 .group  = FIO_OPT_G_INVALID,
3614         },
3615         {
3616                 .name   = "create_fsync",
3617                 .lname  = "Create fsync",
3618                 .type   = FIO_OPT_BOOL,
3619                 .off1   = offsetof(struct thread_options, create_fsync),
3620                 .help   = "fsync file after creation",
3621                 .def    = "1",
3622                 .category = FIO_OPT_C_FILE,
3623                 .group  = FIO_OPT_G_INVALID,
3624         },
3625         {
3626                 .name   = "create_on_open",
3627                 .lname  = "Create on open",
3628                 .type   = FIO_OPT_BOOL,
3629                 .off1   = offsetof(struct thread_options, create_on_open),
3630                 .help   = "Create files when they are opened for IO",
3631                 .def    = "0",
3632                 .category = FIO_OPT_C_FILE,
3633                 .group  = FIO_OPT_G_INVALID,
3634         },
3635         {
3636                 .name   = "create_only",
3637                 .lname  = "Create Only",
3638                 .type   = FIO_OPT_BOOL,
3639                 .off1   = offsetof(struct thread_options, create_only),
3640                 .help   = "Only perform file creation phase",
3641                 .category = FIO_OPT_C_FILE,
3642                 .def    = "0",
3643         },
3644         {
3645                 .name   = "allow_file_create",
3646                 .lname  = "Allow file create",
3647                 .type   = FIO_OPT_BOOL,
3648                 .off1   = offsetof(struct thread_options, allow_create),
3649                 .help   = "Permit fio to create files, if they don't exist",
3650                 .def    = "1",
3651                 .category = FIO_OPT_C_FILE,
3652                 .group  = FIO_OPT_G_FILENAME,
3653         },
3654         {
3655                 .name   = "allow_mounted_write",
3656                 .lname  = "Allow mounted write",
3657                 .type   = FIO_OPT_BOOL,
3658                 .off1   = offsetof(struct thread_options, allow_mounted_write),
3659                 .help   = "Allow writes to a mounted partition",
3660                 .def    = "0",
3661                 .category = FIO_OPT_C_FILE,
3662                 .group  = FIO_OPT_G_FILENAME,
3663         },
3664         {
3665                 .name   = "pre_read",
3666                 .lname  = "Pre-read files",
3667                 .type   = FIO_OPT_BOOL,
3668                 .off1   = offsetof(struct thread_options, pre_read),
3669                 .help   = "Pre-read files before starting official testing",
3670                 .def    = "0",
3671                 .category = FIO_OPT_C_FILE,
3672                 .group  = FIO_OPT_G_INVALID,
3673         },
3674 #ifdef FIO_HAVE_CPU_AFFINITY
3675         {
3676                 .name   = "cpumask",
3677                 .lname  = "CPU mask",
3678                 .type   = FIO_OPT_INT,
3679                 .cb     = str_cpumask_cb,
3680                 .off1   = offsetof(struct thread_options, cpumask),
3681                 .help   = "CPU affinity mask",
3682                 .category = FIO_OPT_C_GENERAL,
3683                 .group  = FIO_OPT_G_CRED,
3684         },
3685         {
3686                 .name   = "cpus_allowed",
3687                 .lname  = "CPUs allowed",
3688                 .type   = FIO_OPT_STR,
3689                 .cb     = str_cpus_allowed_cb,
3690                 .off1   = offsetof(struct thread_options, cpumask),
3691                 .help   = "Set CPUs allowed",
3692                 .category = FIO_OPT_C_GENERAL,
3693                 .group  = FIO_OPT_G_CRED,
3694         },
3695         {
3696                 .name   = "cpus_allowed_policy",
3697                 .lname  = "CPUs allowed distribution policy",
3698                 .type   = FIO_OPT_STR,
3699                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
3700                 .help   = "Distribution policy for cpus_allowed",
3701                 .parent = "cpus_allowed",
3702                 .prio   = 1,
3703                 .posval = {
3704                           { .ival = "shared",
3705                             .oval = FIO_CPUS_SHARED,
3706                             .help = "Mask shared between threads",
3707                           },
3708                           { .ival = "split",
3709                             .oval = FIO_CPUS_SPLIT,
3710                             .help = "Mask split between threads",
3711                           },
3712                 },
3713                 .category = FIO_OPT_C_GENERAL,
3714                 .group  = FIO_OPT_G_CRED,
3715         },
3716 #else
3717         {
3718                 .name   = "cpumask",
3719                 .lname  = "CPU mask",
3720                 .type   = FIO_OPT_UNSUPPORTED,
3721                 .help   = "Your platform does not support CPU affinities",
3722         },
3723         {
3724                 .name   = "cpus_allowed",
3725                 .lname  = "CPUs allowed",
3726                 .type   = FIO_OPT_UNSUPPORTED,
3727                 .help   = "Your platform does not support CPU affinities",
3728         },
3729         {
3730                 .name   = "cpus_allowed_policy",
3731                 .lname  = "CPUs allowed distribution policy",
3732                 .type   = FIO_OPT_UNSUPPORTED,
3733                 .help   = "Your platform does not support CPU affinities",
3734         },
3735 #endif
3736 #ifdef CONFIG_LIBNUMA
3737         {
3738                 .name   = "numa_cpu_nodes",
3739                 .lname  = "NUMA CPU Nodes",
3740                 .type   = FIO_OPT_STR,
3741                 .cb     = str_numa_cpunodes_cb,
3742                 .off1   = offsetof(struct thread_options, numa_cpunodes),
3743                 .help   = "NUMA CPU nodes bind",
3744                 .category = FIO_OPT_C_GENERAL,
3745                 .group  = FIO_OPT_G_INVALID,
3746         },
3747         {
3748                 .name   = "numa_mem_policy",
3749                 .lname  = "NUMA Memory Policy",
3750                 .type   = FIO_OPT_STR,
3751                 .cb     = str_numa_mpol_cb,
3752                 .off1   = offsetof(struct thread_options, numa_memnodes),
3753                 .help   = "NUMA memory policy setup",
3754                 .category = FIO_OPT_C_GENERAL,
3755                 .group  = FIO_OPT_G_INVALID,
3756         },
3757 #else
3758         {
3759                 .name   = "numa_cpu_nodes",
3760                 .lname  = "NUMA CPU Nodes",
3761                 .type   = FIO_OPT_UNSUPPORTED,
3762                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3763         },
3764         {
3765                 .name   = "numa_mem_policy",
3766                 .lname  = "NUMA Memory Policy",
3767                 .type   = FIO_OPT_UNSUPPORTED,
3768                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3769         },
3770 #endif
3771 #ifdef CONFIG_CUDA
3772         {
3773                 .name   = "gpu_dev_id",
3774                 .lname  = "GPU device ID",
3775                 .type   = FIO_OPT_INT,
3776                 .off1   = offsetof(struct thread_options, gpu_dev_id),
3777                 .help   = "Set GPU device ID for GPUDirect RDMA",
3778                 .def    = "0",
3779                 .category = FIO_OPT_C_GENERAL,
3780                 .group  = FIO_OPT_G_INVALID,
3781         },
3782 #endif
3783         {
3784                 .name   = "end_fsync",
3785                 .lname  = "End fsync",
3786                 .type   = FIO_OPT_BOOL,
3787                 .off1   = offsetof(struct thread_options, end_fsync),
3788                 .help   = "Include fsync at the end of job",
3789                 .def    = "0",
3790                 .category = FIO_OPT_C_FILE,
3791                 .group  = FIO_OPT_G_INVALID,
3792         },
3793         {
3794                 .name   = "fsync_on_close",
3795                 .lname  = "Fsync on close",
3796                 .type   = FIO_OPT_BOOL,
3797                 .off1   = offsetof(struct thread_options, fsync_on_close),
3798                 .help   = "fsync files on close",
3799                 .def    = "0",
3800                 .category = FIO_OPT_C_FILE,
3801                 .group  = FIO_OPT_G_INVALID,
3802         },
3803         {
3804                 .name   = "unlink",
3805                 .lname  = "Unlink file",
3806                 .type   = FIO_OPT_BOOL,
3807                 .off1   = offsetof(struct thread_options, unlink),
3808                 .help   = "Unlink created files after job has completed",
3809                 .def    = "0",
3810                 .category = FIO_OPT_C_FILE,
3811                 .group  = FIO_OPT_G_INVALID,
3812         },
3813         {
3814                 .name   = "unlink_each_loop",
3815                 .lname  = "Unlink file after each loop of a job",
3816                 .type   = FIO_OPT_BOOL,
3817                 .off1   = offsetof(struct thread_options, unlink_each_loop),
3818                 .help   = "Unlink created files after each loop in a job has completed",
3819                 .def    = "0",
3820                 .category = FIO_OPT_C_FILE,
3821                 .group  = FIO_OPT_G_INVALID,
3822         },
3823         {
3824                 .name   = "exitall",
3825                 .lname  = "Exit-all on terminate",
3826                 .type   = FIO_OPT_STR_SET,
3827                 .cb     = str_exitall_cb,
3828                 .help   = "Terminate all jobs when one exits",
3829                 .category = FIO_OPT_C_GENERAL,
3830                 .group  = FIO_OPT_G_PROCESS,
3831         },
3832         {
3833                 .name   = "exitall_on_error",
3834                 .lname  = "Exit-all on terminate in error",
3835                 .type   = FIO_OPT_STR_SET,
3836                 .off1   = offsetof(struct thread_options, exitall_error),
3837                 .help   = "Terminate all jobs when one exits in error",
3838                 .category = FIO_OPT_C_GENERAL,
3839                 .group  = FIO_OPT_G_PROCESS,
3840         },
3841         {
3842                 .name   = "stonewall",
3843                 .lname  = "Wait for previous",
3844                 .alias  = "wait_for_previous",
3845                 .type   = FIO_OPT_STR_SET,
3846                 .off1   = offsetof(struct thread_options, stonewall),
3847                 .help   = "Insert a hard barrier between this job and previous",
3848                 .category = FIO_OPT_C_GENERAL,
3849                 .group  = FIO_OPT_G_PROCESS,
3850         },
3851         {
3852                 .name   = "new_group",
3853                 .lname  = "New group",
3854                 .type   = FIO_OPT_STR_SET,
3855                 .off1   = offsetof(struct thread_options, new_group),
3856                 .help   = "Mark the start of a new group (for reporting)",
3857                 .category = FIO_OPT_C_GENERAL,
3858                 .group  = FIO_OPT_G_PROCESS,
3859         },
3860         {
3861                 .name   = "thread",
3862                 .lname  = "Thread",
3863                 .type   = FIO_OPT_STR_SET,
3864                 .off1   = offsetof(struct thread_options, use_thread),
3865                 .help   = "Use threads instead of processes",
3866 #ifdef CONFIG_NO_SHM
3867                 .def    = "1",
3868                 .no_warn_def = 1,
3869 #endif
3870                 .category = FIO_OPT_C_GENERAL,
3871                 .group  = FIO_OPT_G_PROCESS,
3872         },
3873         {
3874                 .name   = "per_job_logs",
3875                 .lname  = "Per Job Logs",
3876                 .type   = FIO_OPT_BOOL,
3877                 .off1   = offsetof(struct thread_options, per_job_logs),
3878                 .help   = "Include job number in generated log files or not",
3879                 .def    = "1",
3880                 .category = FIO_OPT_C_LOG,
3881                 .group  = FIO_OPT_G_INVALID,
3882         },
3883         {
3884                 .name   = "write_bw_log",
3885                 .lname  = "Write bandwidth log",
3886                 .type   = FIO_OPT_STR,
3887                 .off1   = offsetof(struct thread_options, bw_log_file),
3888                 .cb     = str_write_bw_log_cb,
3889                 .help   = "Write log of bandwidth during run",
3890                 .category = FIO_OPT_C_LOG,
3891                 .group  = FIO_OPT_G_INVALID,
3892         },
3893         {
3894                 .name   = "write_lat_log",
3895                 .lname  = "Write latency log",
3896                 .type   = FIO_OPT_STR,
3897                 .off1   = offsetof(struct thread_options, lat_log_file),
3898                 .cb     = str_write_lat_log_cb,
3899                 .help   = "Write log of latency during run",
3900                 .category = FIO_OPT_C_LOG,
3901                 .group  = FIO_OPT_G_INVALID,
3902         },
3903         {
3904                 .name   = "write_iops_log",
3905                 .lname  = "Write IOPS log",
3906                 .type   = FIO_OPT_STR,
3907                 .off1   = offsetof(struct thread_options, iops_log_file),
3908                 .cb     = str_write_iops_log_cb,
3909                 .help   = "Write log of IOPS during run",
3910                 .category = FIO_OPT_C_LOG,
3911                 .group  = FIO_OPT_G_INVALID,
3912         },
3913         {
3914                 .name   = "log_avg_msec",
3915                 .lname  = "Log averaging (msec)",
3916                 .type   = FIO_OPT_INT,
3917                 .off1   = offsetof(struct thread_options, log_avg_msec),
3918                 .help   = "Average bw/iops/lat logs over this period of time",
3919                 .def    = "0",
3920                 .category = FIO_OPT_C_LOG,
3921                 .group  = FIO_OPT_G_INVALID,
3922         },
3923         {
3924                 .name   = "log_hist_msec",
3925                 .lname  = "Log histograms (msec)",
3926                 .type   = FIO_OPT_INT,
3927                 .off1   = offsetof(struct thread_options, log_hist_msec),
3928                 .help   = "Dump completion latency histograms at frequency of this time value",
3929                 .def    = "0",
3930                 .category = FIO_OPT_C_LOG,
3931                 .group  = FIO_OPT_G_INVALID,
3932         },
3933         {
3934                 .name   = "log_hist_coarseness",
3935                 .lname  = "Histogram logs coarseness",
3936                 .type   = FIO_OPT_INT,
3937                 .off1   = offsetof(struct thread_options, log_hist_coarseness),
3938                 .help   = "Integer in range [0,6]. Higher coarseness outputs"
3939                         " fewer histogram bins per sample. The number of bins for"
3940                         " these are [1216, 608, 304, 152, 76, 38, 19] respectively.",
3941                 .def    = "0",
3942                 .category = FIO_OPT_C_LOG,
3943                 .group  = FIO_OPT_G_INVALID,
3944         },
3945         {
3946                 .name   = "write_hist_log",
3947                 .lname  = "Write latency histogram logs",
3948                 .type   = FIO_OPT_STR,
3949                 .off1   = offsetof(struct thread_options, hist_log_file),
3950                 .cb     = str_write_hist_log_cb,
3951                 .help   = "Write log of latency histograms during run",
3952                 .category = FIO_OPT_C_LOG,
3953                 .group  = FIO_OPT_G_INVALID,
3954         },
3955         {
3956                 .name   = "log_max_value",
3957                 .lname  = "Log maximum instead of average",
3958                 .type   = FIO_OPT_BOOL,
3959                 .off1   = offsetof(struct thread_options, log_max),
3960                 .help   = "Log max sample in a window instead of average",
3961                 .def    = "0",
3962                 .category = FIO_OPT_C_LOG,
3963                 .group  = FIO_OPT_G_INVALID,
3964         },
3965         {
3966                 .name   = "log_offset",
3967                 .lname  = "Log offset of IO",
3968                 .type   = FIO_OPT_BOOL,
3969                 .off1   = offsetof(struct thread_options, log_offset),
3970                 .help   = "Include offset of IO for each log entry",
3971                 .def    = "0",
3972                 .category = FIO_OPT_C_LOG,
3973                 .group  = FIO_OPT_G_INVALID,
3974         },
3975 #ifdef CONFIG_ZLIB
3976         {
3977                 .name   = "log_compression",
3978                 .lname  = "Log compression",
3979                 .type   = FIO_OPT_INT,
3980                 .off1   = offsetof(struct thread_options, log_gz),
3981                 .help   = "Log in compressed chunks of this size",
3982                 .minval = 1024ULL,
3983                 .maxval = 512 * 1024 * 1024ULL,
3984                 .category = FIO_OPT_C_LOG,
3985                 .group  = FIO_OPT_G_INVALID,
3986         },
3987 #ifdef FIO_HAVE_CPU_AFFINITY
3988         {
3989                 .name   = "log_compression_cpus",
3990                 .lname  = "Log Compression CPUs",
3991                 .type   = FIO_OPT_STR,
3992                 .cb     = str_log_cpus_allowed_cb,
3993                 .off1   = offsetof(struct thread_options, log_gz_cpumask),
3994                 .parent = "log_compression",
3995                 .help   = "Limit log compression to these CPUs",
3996                 .category = FIO_OPT_C_LOG,
3997                 .group  = FIO_OPT_G_INVALID,
3998         },
3999 #else
4000         {
4001                 .name   = "log_compression_cpus",
4002                 .lname  = "Log Compression CPUs",
4003                 .type   = FIO_OPT_UNSUPPORTED,
4004                 .help   = "Your platform does not support CPU affinities",
4005         },
4006 #endif
4007         {
4008                 .name   = "log_store_compressed",
4009                 .lname  = "Log store compressed",
4010                 .type   = FIO_OPT_BOOL,
4011                 .off1   = offsetof(struct thread_options, log_gz_store),
4012                 .help   = "Store logs in a compressed format",
4013                 .category = FIO_OPT_C_LOG,
4014                 .group  = FIO_OPT_G_INVALID,
4015         },
4016 #else
4017         {
4018                 .name   = "log_compression",
4019                 .lname  = "Log compression",
4020                 .type   = FIO_OPT_UNSUPPORTED,
4021                 .help   = "Install libz-dev(el) to get compression support",
4022         },
4023         {
4024                 .name   = "log_store_compressed",
4025                 .lname  = "Log store compressed",
4026                 .type   = FIO_OPT_UNSUPPORTED,
4027                 .help   = "Install libz-dev(el) to get compression support",
4028         },
4029 #endif
4030         {
4031                 .name = "log_unix_epoch",
4032                 .lname = "Log epoch unix",
4033                 .type = FIO_OPT_BOOL,
4034                 .off1 = offsetof(struct thread_options, log_unix_epoch),
4035                 .help = "Use Unix time in log files",
4036                 .category = FIO_OPT_C_LOG,
4037                 .group = FIO_OPT_G_INVALID,
4038         },
4039         {
4040                 .name   = "block_error_percentiles",
4041                 .lname  = "Block error percentiles",
4042                 .type   = FIO_OPT_BOOL,
4043                 .off1   = offsetof(struct thread_options, block_error_hist),
4044                 .help   = "Record trim block errors and make a histogram",
4045                 .def    = "0",
4046                 .category = FIO_OPT_C_LOG,
4047                 .group  = FIO_OPT_G_INVALID,
4048         },
4049         {
4050                 .name   = "bwavgtime",
4051                 .lname  = "Bandwidth average time",
4052                 .type   = FIO_OPT_INT,
4053                 .off1   = offsetof(struct thread_options, bw_avg_time),
4054                 .help   = "Time window over which to calculate bandwidth"
4055                           " (msec)",
4056                 .def    = "500",
4057                 .parent = "write_bw_log",
4058                 .hide   = 1,
4059                 .interval = 100,
4060                 .category = FIO_OPT_C_LOG,
4061                 .group  = FIO_OPT_G_INVALID,
4062         },
4063         {
4064                 .name   = "iopsavgtime",
4065                 .lname  = "IOPS average time",
4066                 .type   = FIO_OPT_INT,
4067                 .off1   = offsetof(struct thread_options, iops_avg_time),
4068                 .help   = "Time window over which to calculate IOPS (msec)",
4069                 .def    = "500",
4070                 .parent = "write_iops_log",
4071                 .hide   = 1,
4072                 .interval = 100,
4073                 .category = FIO_OPT_C_LOG,
4074                 .group  = FIO_OPT_G_INVALID,
4075         },
4076         {
4077                 .name   = "group_reporting",
4078                 .lname  = "Group reporting",
4079                 .type   = FIO_OPT_STR_SET,
4080                 .off1   = offsetof(struct thread_options, group_reporting),
4081                 .help   = "Do reporting on a per-group basis",
4082                 .category = FIO_OPT_C_STAT,
4083                 .group  = FIO_OPT_G_INVALID,
4084         },
4085         {
4086                 .name   = "stats",
4087                 .lname  = "Stats",
4088                 .type   = FIO_OPT_BOOL,
4089                 .off1   = offsetof(struct thread_options, stats),
4090                 .help   = "Enable collection of stats",
4091                 .def    = "1",
4092                 .category = FIO_OPT_C_STAT,
4093                 .group  = FIO_OPT_G_INVALID,
4094         },
4095         {
4096                 .name   = "zero_buffers",
4097                 .lname  = "Zero I/O buffers",
4098                 .type   = FIO_OPT_STR_SET,
4099                 .off1   = offsetof(struct thread_options, zero_buffers),
4100                 .help   = "Init IO buffers to all zeroes",
4101                 .category = FIO_OPT_C_IO,
4102                 .group  = FIO_OPT_G_IO_BUF,
4103         },
4104         {
4105                 .name   = "refill_buffers",
4106                 .lname  = "Refill I/O buffers",
4107                 .type   = FIO_OPT_STR_SET,
4108                 .off1   = offsetof(struct thread_options, refill_buffers),
4109                 .help   = "Refill IO buffers on every IO submit",
4110                 .category = FIO_OPT_C_IO,
4111                 .group  = FIO_OPT_G_IO_BUF,
4112         },
4113         {
4114                 .name   = "scramble_buffers",
4115                 .lname  = "Scramble I/O buffers",
4116                 .type   = FIO_OPT_BOOL,
4117                 .off1   = offsetof(struct thread_options, scramble_buffers),
4118                 .help   = "Slightly scramble buffers on every IO submit",
4119                 .def    = "1",
4120                 .category = FIO_OPT_C_IO,
4121                 .group  = FIO_OPT_G_IO_BUF,
4122         },
4123         {
4124                 .name   = "buffer_pattern",
4125                 .lname  = "Buffer pattern",
4126                 .type   = FIO_OPT_STR,
4127                 .cb     = str_buffer_pattern_cb,
4128                 .off1   = offsetof(struct thread_options, buffer_pattern),
4129                 .help   = "Fill pattern for IO buffers",
4130                 .category = FIO_OPT_C_IO,
4131                 .group  = FIO_OPT_G_IO_BUF,
4132         },
4133         {
4134                 .name   = "buffer_compress_percentage",
4135                 .lname  = "Buffer compression percentage",
4136                 .type   = FIO_OPT_INT,
4137                 .cb     = str_buffer_compress_cb,
4138                 .off1   = offsetof(struct thread_options, compress_percentage),
4139                 .maxval = 100,
4140                 .minval = 0,
4141                 .help   = "How compressible the buffer is (approximately)",
4142                 .interval = 5,
4143                 .category = FIO_OPT_C_IO,
4144                 .group  = FIO_OPT_G_IO_BUF,
4145         },
4146         {
4147                 .name   = "buffer_compress_chunk",
4148                 .lname  = "Buffer compression chunk size",
4149                 .type   = FIO_OPT_INT,
4150                 .off1   = offsetof(struct thread_options, compress_chunk),
4151                 .parent = "buffer_compress_percentage",
4152                 .hide   = 1,
4153                 .help   = "Size of compressible region in buffer",
4154                 .def    = "512",
4155                 .interval = 256,
4156                 .category = FIO_OPT_C_IO,
4157                 .group  = FIO_OPT_G_IO_BUF,
4158         },
4159         {
4160                 .name   = "dedupe_percentage",
4161                 .lname  = "Dedupe percentage",
4162                 .type   = FIO_OPT_INT,
4163                 .cb     = str_dedupe_cb,
4164                 .off1   = offsetof(struct thread_options, dedupe_percentage),
4165                 .maxval = 100,
4166                 .minval = 0,
4167                 .help   = "Percentage of buffers that are dedupable",
4168                 .interval = 1,
4169                 .category = FIO_OPT_C_IO,
4170                 .group  = FIO_OPT_G_IO_BUF,
4171         },
4172         {
4173                 .name   = "clat_percentiles",
4174                 .lname  = "Completion latency percentiles",
4175                 .type   = FIO_OPT_BOOL,
4176                 .off1   = offsetof(struct thread_options, clat_percentiles),
4177                 .help   = "Enable the reporting of completion latency percentiles",
4178                 .def    = "1",
4179                 .inverse = "lat_percentiles",
4180                 .category = FIO_OPT_C_STAT,
4181                 .group  = FIO_OPT_G_INVALID,
4182         },
4183         {
4184                 .name   = "lat_percentiles",
4185                 .lname  = "IO latency percentiles",
4186                 .type   = FIO_OPT_BOOL,
4187                 .off1   = offsetof(struct thread_options, lat_percentiles),
4188                 .help   = "Enable the reporting of IO latency percentiles",
4189                 .def    = "0",
4190                 .inverse = "clat_percentiles",
4191                 .category = FIO_OPT_C_STAT,
4192                 .group  = FIO_OPT_G_INVALID,
4193         },
4194         {
4195                 .name   = "percentile_list",
4196                 .lname  = "Percentile list",
4197                 .type   = FIO_OPT_FLOAT_LIST,
4198                 .off1   = offsetof(struct thread_options, percentile_list),
4199                 .off2   = offsetof(struct thread_options, percentile_precision),
4200                 .help   = "Specify a custom list of percentiles to report for "
4201                           "completion latency and block errors",
4202                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
4203                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
4204                 .minfp  = 0.0,
4205                 .maxfp  = 100.0,
4206                 .category = FIO_OPT_C_STAT,
4207                 .group  = FIO_OPT_G_INVALID,
4208         },
4209         {
4210                 .name   = "significant_figures",
4211                 .lname  = "Significant figures",
4212                 .type   = FIO_OPT_INT,
4213                 .off1   = offsetof(struct thread_options, sig_figs),
4214                 .maxval = 10,
4215                 .minval = 1,
4216                 .help   = "Significant figures for output-format set to normal",
4217                 .def    = "4",
4218                 .interval = 1,
4219                 .category = FIO_OPT_C_STAT,
4220                 .group  = FIO_OPT_G_INVALID,
4221         },
4222
4223 #ifdef FIO_HAVE_DISK_UTIL
4224         {
4225                 .name   = "disk_util",
4226                 .lname  = "Disk utilization",
4227                 .type   = FIO_OPT_BOOL,
4228                 .off1   = offsetof(struct thread_options, do_disk_util),
4229                 .help   = "Log disk utilization statistics",
4230                 .def    = "1",
4231                 .category = FIO_OPT_C_STAT,
4232                 .group  = FIO_OPT_G_INVALID,
4233         },
4234 #else
4235         {
4236                 .name   = "disk_util",
4237                 .lname  = "Disk utilization",
4238                 .type   = FIO_OPT_UNSUPPORTED,
4239                 .help   = "Your platform does not support disk utilization",
4240         },
4241 #endif
4242         {
4243                 .name   = "gtod_reduce",
4244                 .lname  = "Reduce gettimeofday() calls",
4245                 .type   = FIO_OPT_BOOL,
4246                 .help   = "Greatly reduce number of gettimeofday() calls",
4247                 .cb     = str_gtod_reduce_cb,
4248                 .def    = "0",
4249                 .hide_on_set = 1,
4250                 .category = FIO_OPT_C_STAT,
4251                 .group  = FIO_OPT_G_INVALID,
4252         },
4253         {
4254                 .name   = "disable_lat",
4255                 .lname  = "Disable all latency stats",
4256                 .type   = FIO_OPT_BOOL,
4257                 .off1   = offsetof(struct thread_options, disable_lat),
4258                 .help   = "Disable latency numbers",
4259                 .parent = "gtod_reduce",
4260                 .hide   = 1,
4261                 .def    = "0",
4262                 .category = FIO_OPT_C_STAT,
4263                 .group  = FIO_OPT_G_INVALID,
4264         },
4265         {
4266                 .name   = "disable_clat",
4267                 .lname  = "Disable completion latency stats",
4268                 .type   = FIO_OPT_BOOL,
4269                 .off1   = offsetof(struct thread_options, disable_clat),
4270                 .help   = "Disable completion latency numbers",
4271                 .parent = "gtod_reduce",
4272                 .hide   = 1,
4273                 .def    = "0",
4274                 .category = FIO_OPT_C_STAT,
4275                 .group  = FIO_OPT_G_INVALID,
4276         },
4277         {
4278                 .name   = "disable_slat",
4279                 .lname  = "Disable submission latency stats",
4280                 .type   = FIO_OPT_BOOL,
4281                 .off1   = offsetof(struct thread_options, disable_slat),
4282                 .help   = "Disable submission latency numbers",
4283                 .parent = "gtod_reduce",
4284                 .hide   = 1,
4285                 .def    = "0",
4286                 .category = FIO_OPT_C_STAT,
4287                 .group  = FIO_OPT_G_INVALID,
4288         },
4289         {
4290                 .name   = "disable_bw_measurement",
4291                 .alias  = "disable_bw",
4292                 .lname  = "Disable bandwidth stats",
4293                 .type   = FIO_OPT_BOOL,
4294                 .off1   = offsetof(struct thread_options, disable_bw),
4295                 .help   = "Disable bandwidth logging",
4296                 .parent = "gtod_reduce",
4297                 .hide   = 1,
4298                 .def    = "0",
4299                 .category = FIO_OPT_C_STAT,
4300                 .group  = FIO_OPT_G_INVALID,
4301         },
4302         {
4303                 .name   = "gtod_cpu",
4304                 .lname  = "Dedicated gettimeofday() CPU",
4305                 .type   = FIO_OPT_INT,
4306                 .off1   = offsetof(struct thread_options, gtod_cpu),
4307                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
4308                 .verify = gtod_cpu_verify,
4309                 .category = FIO_OPT_C_GENERAL,
4310                 .group  = FIO_OPT_G_CLOCK,
4311         },
4312         {
4313                 .name   = "unified_rw_reporting",
4314                 .lname  = "Unified RW Reporting",
4315                 .type   = FIO_OPT_BOOL,
4316                 .off1   = offsetof(struct thread_options, unified_rw_rep),
4317                 .help   = "Unify reporting across data direction",
4318                 .def    = "0",
4319                 .category = FIO_OPT_C_GENERAL,
4320                 .group  = FIO_OPT_G_INVALID,
4321         },
4322         {
4323                 .name   = "continue_on_error",
4324                 .lname  = "Continue on error",
4325                 .type   = FIO_OPT_STR,
4326                 .off1   = offsetof(struct thread_options, continue_on_error),
4327                 .help   = "Continue on non-fatal errors during IO",
4328                 .def    = "none",
4329                 .category = FIO_OPT_C_GENERAL,
4330                 .group  = FIO_OPT_G_ERR,
4331                 .posval = {
4332                           { .ival = "none",
4333                             .oval = ERROR_TYPE_NONE,
4334                             .help = "Exit when an error is encountered",
4335                           },
4336                           { .ival = "read",
4337                             .oval = ERROR_TYPE_READ,
4338                             .help = "Continue on read errors only",
4339                           },
4340                           { .ival = "write",
4341                             .oval = ERROR_TYPE_WRITE,
4342                             .help = "Continue on write errors only",
4343                           },
4344                           { .ival = "io",
4345                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
4346                             .help = "Continue on any IO errors",
4347                           },
4348                           { .ival = "verify",
4349                             .oval = ERROR_TYPE_VERIFY,
4350                             .help = "Continue on verify errors only",
4351                           },
4352                           { .ival = "all",
4353                             .oval = ERROR_TYPE_ANY,
4354                             .help = "Continue on all io and verify errors",
4355                           },
4356                           { .ival = "0",
4357                             .oval = ERROR_TYPE_NONE,
4358                             .help = "Alias for 'none'",
4359                           },
4360                           { .ival = "1",
4361                             .oval = ERROR_TYPE_ANY,
4362                             .help = "Alias for 'all'",
4363                           },
4364                 },
4365         },
4366         {
4367                 .name   = "ignore_error",
4368                 .lname  = "Ignore Error",
4369                 .type   = FIO_OPT_STR,
4370                 .cb     = str_ignore_error_cb,
4371                 .off1   = offsetof(struct thread_options, ignore_error_nr),
4372                 .help   = "Set a specific list of errors to ignore",
4373                 .parent = "rw",
4374                 .category = FIO_OPT_C_GENERAL,
4375                 .group  = FIO_OPT_G_ERR,
4376         },
4377         {
4378                 .name   = "error_dump",
4379                 .lname  = "Error Dump",
4380                 .type   = FIO_OPT_BOOL,
4381                 .off1   = offsetof(struct thread_options, error_dump),
4382                 .def    = "0",
4383                 .help   = "Dump info on each error",
4384                 .category = FIO_OPT_C_GENERAL,
4385                 .group  = FIO_OPT_G_ERR,
4386         },
4387         {
4388                 .name   = "profile",
4389                 .lname  = "Profile",
4390                 .type   = FIO_OPT_STR_STORE,
4391                 .off1   = offsetof(struct thread_options, profile),
4392                 .help   = "Select a specific builtin performance test",
4393                 .category = FIO_OPT_C_PROFILE,
4394                 .group  = FIO_OPT_G_INVALID,
4395         },
4396         {
4397                 .name   = "cgroup",
4398                 .lname  = "Cgroup",
4399                 .type   = FIO_OPT_STR_STORE,
4400                 .off1   = offsetof(struct thread_options, cgroup),
4401                 .help   = "Add job to cgroup of this name",
4402                 .category = FIO_OPT_C_GENERAL,
4403                 .group  = FIO_OPT_G_CGROUP,
4404         },
4405         {
4406                 .name   = "cgroup_nodelete",
4407                 .lname  = "Cgroup no-delete",
4408                 .type   = FIO_OPT_BOOL,
4409                 .off1   = offsetof(struct thread_options, cgroup_nodelete),
4410                 .help   = "Do not delete cgroups after job completion",
4411                 .def    = "0",
4412                 .parent = "cgroup",
4413                 .category = FIO_OPT_C_GENERAL,
4414                 .group  = FIO_OPT_G_CGROUP,
4415         },
4416         {
4417                 .name   = "cgroup_weight",
4418                 .lname  = "Cgroup weight",
4419                 .type   = FIO_OPT_INT,
4420                 .off1   = offsetof(struct thread_options, cgroup_weight),
4421                 .help   = "Use given weight for cgroup",
4422                 .minval = 100,
4423                 .maxval = 1000,
4424                 .parent = "cgroup",
4425                 .category = FIO_OPT_C_GENERAL,
4426                 .group  = FIO_OPT_G_CGROUP,
4427         },
4428         {
4429                 .name   = "uid",
4430                 .lname  = "User ID",
4431                 .type   = FIO_OPT_INT,
4432                 .off1   = offsetof(struct thread_options, uid),
4433                 .help   = "Run job with this user ID",
4434                 .category = FIO_OPT_C_GENERAL,
4435                 .group  = FIO_OPT_G_CRED,
4436         },
4437         {
4438                 .name   = "gid",
4439                 .lname  = "Group ID",
4440                 .type   = FIO_OPT_INT,
4441                 .off1   = offsetof(struct thread_options, gid),
4442                 .help   = "Run job with this group ID",
4443                 .category = FIO_OPT_C_GENERAL,
4444                 .group  = FIO_OPT_G_CRED,
4445         },
4446         {
4447                 .name   = "kb_base",
4448                 .lname  = "KB Base",
4449                 .type   = FIO_OPT_INT,
4450                 .off1   = offsetof(struct thread_options, kb_base),
4451                 .prio   = 1,
4452                 .def    = "1024",
4453                 .posval = {
4454                           { .ival = "1024",
4455                             .oval = 1024,
4456                             .help = "Inputs invert IEC and SI prefixes (for compatibility); outputs prefer binary",
4457                           },
4458                           { .ival = "1000",
4459                             .oval = 1000,
4460                             .help = "Inputs use IEC and SI prefixes; outputs prefer SI",
4461                           },
4462                 },
4463                 .help   = "Unit prefix interpretation for quantities of data (IEC and SI)",
4464                 .category = FIO_OPT_C_GENERAL,
4465                 .group  = FIO_OPT_G_INVALID,
4466         },
4467         {
4468                 .name   = "unit_base",
4469                 .lname  = "Unit for quantities of data (Bits or Bytes)",
4470                 .type   = FIO_OPT_INT,
4471                 .off1   = offsetof(struct thread_options, unit_base),
4472                 .prio   = 1,
4473                 .posval = {
4474                           { .ival = "0",
4475                             .oval = N2S_NONE,
4476                             .help = "Auto-detect",
4477                           },
4478                           { .ival = "8",
4479                             .oval = N2S_BYTEPERSEC,
4480                             .help = "Normal (byte based)",
4481                           },
4482                           { .ival = "1",
4483                             .oval = N2S_BITPERSEC,
4484                             .help = "Bit based",
4485                           },
4486                 },
4487                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
4488                 .category = FIO_OPT_C_GENERAL,
4489                 .group  = FIO_OPT_G_INVALID,
4490         },
4491         {
4492                 .name   = "hugepage-size",
4493                 .lname  = "Hugepage size",
4494                 .type   = FIO_OPT_INT,
4495                 .off1   = offsetof(struct thread_options, hugepage_size),
4496                 .help   = "When using hugepages, specify size of each page",
4497                 .def    = __fio_stringify(FIO_HUGE_PAGE),
4498                 .interval = 1024 * 1024,
4499                 .category = FIO_OPT_C_GENERAL,
4500                 .group  = FIO_OPT_G_INVALID,
4501         },
4502         {
4503                 .name   = "flow_id",
4504                 .lname  = "I/O flow ID",
4505                 .type   = FIO_OPT_INT,
4506                 .off1   = offsetof(struct thread_options, flow_id),
4507                 .help   = "The flow index ID to use",
4508                 .def    = "0",
4509                 .category = FIO_OPT_C_IO,
4510                 .group  = FIO_OPT_G_IO_FLOW,
4511         },
4512         {
4513                 .name   = "flow",
4514                 .lname  = "I/O flow weight",
4515                 .type   = FIO_OPT_INT,
4516                 .off1   = offsetof(struct thread_options, flow),
4517                 .help   = "Weight for flow control of this job",
4518                 .parent = "flow_id",
4519                 .hide   = 1,
4520                 .def    = "0",
4521                 .category = FIO_OPT_C_IO,
4522                 .group  = FIO_OPT_G_IO_FLOW,
4523         },
4524         {
4525                 .name   = "flow_watermark",
4526                 .lname  = "I/O flow watermark",
4527                 .type   = FIO_OPT_INT,
4528                 .off1   = offsetof(struct thread_options, flow_watermark),
4529                 .help   = "High watermark for flow control. This option"
4530                         " should be set to the same value for all threads"
4531                         " with non-zero flow.",
4532                 .parent = "flow_id",
4533                 .hide   = 1,
4534                 .def    = "1024",
4535                 .category = FIO_OPT_C_IO,
4536                 .group  = FIO_OPT_G_IO_FLOW,
4537         },
4538         {
4539                 .name   = "flow_sleep",
4540                 .lname  = "I/O flow sleep",
4541                 .type   = FIO_OPT_INT,
4542                 .off1   = offsetof(struct thread_options, flow_sleep),
4543                 .help   = "How many microseconds to sleep after being held"
4544                         " back by the flow control mechanism",
4545                 .parent = "flow_id",
4546                 .hide   = 1,
4547                 .def    = "0",
4548                 .category = FIO_OPT_C_IO,
4549                 .group  = FIO_OPT_G_IO_FLOW,
4550         },
4551         {
4552                 .name   = "steadystate",
4553                 .lname  = "Steady state threshold",
4554                 .alias  = "ss",
4555                 .type   = FIO_OPT_STR,
4556                 .off1   = offsetof(struct thread_options, ss_state),
4557                 .cb     = str_steadystate_cb,
4558                 .help   = "Define the criterion and limit to judge when a job has reached steady state",
4559                 .def    = "iops_slope:0.01%",
4560                 .posval = {
4561                           { .ival = "iops",
4562                             .oval = FIO_SS_IOPS,
4563                             .help = "maximum mean deviation of IOPS measurements",
4564                           },
4565                           { .ival = "iops_slope",
4566                             .oval = FIO_SS_IOPS_SLOPE,
4567                             .help = "slope calculated from IOPS measurements",
4568                           },
4569                           { .ival = "bw",
4570                             .oval = FIO_SS_BW,
4571                             .help = "maximum mean deviation of bandwidth measurements",
4572                           },
4573                           {
4574                             .ival = "bw_slope",
4575                             .oval = FIO_SS_BW_SLOPE,
4576                             .help = "slope calculated from bandwidth measurements",
4577                           },
4578                 },
4579                 .category = FIO_OPT_C_GENERAL,
4580                 .group  = FIO_OPT_G_RUNTIME,
4581         },
4582         {
4583                 .name   = "steadystate_duration",
4584                 .lname  = "Steady state duration",
4585                 .alias  = "ss_dur",
4586                 .parent = "steadystate",
4587                 .type   = FIO_OPT_STR_VAL_TIME,
4588                 .off1   = offsetof(struct thread_options, ss_dur),
4589                 .help   = "Stop workload upon attaining steady state for specified duration",
4590                 .def    = "0",
4591                 .is_seconds = 1,
4592                 .is_time = 1,
4593                 .category = FIO_OPT_C_GENERAL,
4594                 .group  = FIO_OPT_G_RUNTIME,
4595         },
4596         {
4597                 .name   = "steadystate_ramp_time",
4598                 .lname  = "Steady state ramp time",
4599                 .alias  = "ss_ramp",
4600                 .parent = "steadystate",
4601                 .type   = FIO_OPT_STR_VAL_TIME,
4602                 .off1   = offsetof(struct thread_options, ss_ramp_time),
4603                 .help   = "Delay before initiation of data collection for steady state job termination testing",
4604                 .def    = "0",
4605                 .is_seconds = 1,
4606                 .is_time = 1,
4607                 .category = FIO_OPT_C_GENERAL,
4608                 .group  = FIO_OPT_G_RUNTIME,
4609         },
4610         {
4611                 .name = NULL,
4612         },
4613 };
4614
4615 static void add_to_lopt(struct option *lopt, struct fio_option *o,
4616                         const char *name, int val)
4617 {
4618         lopt->name = (char *) name;
4619         lopt->val = val;
4620         if (o->type == FIO_OPT_STR_SET)
4621                 lopt->has_arg = optional_argument;
4622         else
4623                 lopt->has_arg = required_argument;
4624 }
4625
4626 static void options_to_lopts(struct fio_option *opts,
4627                               struct option *long_options,
4628                               int i, int option_type)
4629 {
4630         struct fio_option *o = &opts[0];
4631         while (o->name) {
4632                 add_to_lopt(&long_options[i], o, o->name, option_type);
4633                 if (o->alias) {
4634                         i++;
4635                         add_to_lopt(&long_options[i], o, o->alias, option_type);
4636                 }
4637
4638                 i++;
4639                 o++;
4640                 assert(i < FIO_NR_OPTIONS);
4641         }
4642 }
4643
4644 void fio_options_set_ioengine_opts(struct option *long_options,
4645                                    struct thread_data *td)
4646 {
4647         unsigned int i;
4648
4649         i = 0;
4650         while (long_options[i].name) {
4651                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
4652                         memset(&long_options[i], 0, sizeof(*long_options));
4653                         break;
4654                 }
4655                 i++;
4656         }
4657
4658         /*
4659          * Just clear out the prior ioengine options.
4660          */
4661         if (!td || !td->eo)
4662                 return;
4663
4664         options_to_lopts(td->io_ops->options, long_options, i,
4665                          FIO_GETOPT_IOENGINE);
4666 }
4667
4668 void fio_options_dup_and_init(struct option *long_options)
4669 {
4670         unsigned int i;
4671
4672         options_init(fio_options);
4673
4674         i = 0;
4675         while (long_options[i].name)
4676                 i++;
4677
4678         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
4679 }
4680
4681 struct fio_keyword {
4682         const char *word;
4683         const char *desc;
4684         char *replace;
4685 };
4686
4687 static struct fio_keyword fio_keywords[] = {
4688         {
4689                 .word   = "$pagesize",
4690                 .desc   = "Page size in the system",
4691         },
4692         {
4693                 .word   = "$mb_memory",
4694                 .desc   = "Megabytes of memory online",
4695         },
4696         {
4697                 .word   = "$ncpus",
4698                 .desc   = "Number of CPUs online in the system",
4699         },
4700         {
4701                 .word   = NULL,
4702         },
4703 };
4704
4705 void fio_keywords_exit(void)
4706 {
4707         struct fio_keyword *kw;
4708
4709         kw = &fio_keywords[0];
4710         while (kw->word) {
4711                 free(kw->replace);
4712                 kw->replace = NULL;
4713                 kw++;
4714         }
4715 }
4716
4717 void fio_keywords_init(void)
4718 {
4719         unsigned long long mb_memory;
4720         char buf[128];
4721         long l;
4722
4723         sprintf(buf, "%lu", (unsigned long) page_size);
4724         fio_keywords[0].replace = strdup(buf);
4725
4726         mb_memory = os_phys_mem() / (1024 * 1024);
4727         sprintf(buf, "%llu", mb_memory);
4728         fio_keywords[1].replace = strdup(buf);
4729
4730         l = cpus_online();
4731         sprintf(buf, "%lu", l);
4732         fio_keywords[2].replace = strdup(buf);
4733 }
4734
4735 #define BC_APP          "bc"
4736
4737 static char *bc_calc(char *str)
4738 {
4739         char buf[128], *tmp;
4740         FILE *f;
4741         int ret;
4742
4743         /*
4744          * No math, just return string
4745          */
4746         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
4747              !strchr(str, '/')) || strchr(str, '\''))
4748                 return str;
4749
4750         /*
4751          * Split option from value, we only need to calculate the value
4752          */
4753         tmp = strchr(str, '=');
4754         if (!tmp)
4755                 return str;
4756
4757         tmp++;
4758
4759         /*
4760          * Prevent buffer overflows; such a case isn't reasonable anyway
4761          */
4762         if (strlen(str) >= 128 || strlen(tmp) > 100)
4763                 return str;
4764
4765         sprintf(buf, "which %s > /dev/null", BC_APP);
4766         if (system(buf)) {
4767                 log_err("fio: bc is needed for performing math\n");
4768                 return NULL;
4769         }
4770
4771         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
4772         f = popen(buf, "r");
4773         if (!f)
4774                 return NULL;
4775
4776         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
4777         if (ret <= 0) {
4778                 pclose(f);
4779                 return NULL;
4780         }
4781
4782         pclose(f);
4783         buf[(tmp - str) + ret - 1] = '\0';
4784         memcpy(buf, str, tmp - str);
4785         free(str);
4786         return strdup(buf);
4787 }
4788
4789 /*
4790  * Return a copy of the input string with substrings of the form ${VARNAME}
4791  * substituted with the value of the environment variable VARNAME.  The
4792  * substitution always occurs, even if VARNAME is empty or the corresponding
4793  * environment variable undefined.
4794  */
4795 static char *option_dup_subs(const char *opt)
4796 {
4797         char out[OPT_LEN_MAX+1];
4798         char in[OPT_LEN_MAX+1];
4799         char *outptr = out;
4800         char *inptr = in;
4801         char *ch1, *ch2, *env;
4802         ssize_t nchr = OPT_LEN_MAX;
4803         size_t envlen;
4804
4805         if (strlen(opt) + 1 > OPT_LEN_MAX) {
4806                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
4807                 return NULL;
4808         }
4809
4810         in[OPT_LEN_MAX] = '\0';
4811         strncpy(in, opt, OPT_LEN_MAX);
4812
4813         while (*inptr && nchr > 0) {
4814                 if (inptr[0] == '$' && inptr[1] == '{') {
4815                         ch2 = strchr(inptr, '}');
4816                         if (ch2 && inptr+1 < ch2) {
4817                                 ch1 = inptr+2;
4818                                 inptr = ch2+1;
4819                                 *ch2 = '\0';
4820
4821                                 env = getenv(ch1);
4822                                 if (env) {
4823                                         envlen = strlen(env);
4824                                         if (envlen <= nchr) {
4825                                                 memcpy(outptr, env, envlen);
4826                                                 outptr += envlen;
4827                                                 nchr -= envlen;
4828                                         }
4829                                 }
4830
4831                                 continue;
4832                         }
4833                 }
4834
4835                 *outptr++ = *inptr++;
4836                 --nchr;
4837         }
4838
4839         *outptr = '\0';
4840         return strdup(out);
4841 }
4842
4843 /*
4844  * Look for reserved variable names and replace them with real values
4845  */
4846 static char *fio_keyword_replace(char *opt)
4847 {
4848         char *s;
4849         int i;
4850         int docalc = 0;
4851
4852         for (i = 0; fio_keywords[i].word != NULL; i++) {
4853                 struct fio_keyword *kw = &fio_keywords[i];
4854
4855                 while ((s = strstr(opt, kw->word)) != NULL) {
4856                         char *new = malloc(strlen(opt) + 1);
4857                         char *o_org = opt;
4858                         int olen = s - opt;
4859                         int len;
4860
4861                         /*
4862                          * Copy part of the string before the keyword and
4863                          * sprintf() the replacement after it.
4864                          */
4865                         memcpy(new, opt, olen);
4866                         len = sprintf(new + olen, "%s", kw->replace);
4867
4868                         /*
4869                          * If there's more in the original string, copy that
4870                          * in too
4871                          */
4872                         opt += strlen(kw->word) + olen;
4873                         if (strlen(opt))
4874                                 memcpy(new + olen + len, opt, opt - o_org - 1);
4875
4876                         /*
4877                          * replace opt and free the old opt
4878                          */
4879                         opt = new;
4880                         free(o_org);
4881
4882                         docalc = 1;
4883                 }
4884         }
4885
4886         /*
4887          * Check for potential math and invoke bc, if possible
4888          */
4889         if (docalc)
4890                 opt = bc_calc(opt);
4891
4892         return opt;
4893 }
4894
4895 static char **dup_and_sub_options(char **opts, int num_opts)
4896 {
4897         int i;
4898         char **opts_copy = malloc(num_opts * sizeof(*opts));
4899         for (i = 0; i < num_opts; i++) {
4900                 opts_copy[i] = option_dup_subs(opts[i]);
4901                 if (!opts_copy[i])
4902                         continue;
4903                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
4904         }
4905         return opts_copy;
4906 }
4907
4908 static void show_closest_option(const char *opt)
4909 {
4910         int best_option, best_distance;
4911         int i, distance;
4912         char *name;
4913
4914         if (!strlen(opt))
4915                 return;
4916
4917         name = strdup(opt);
4918         i = 0;
4919         while (name[i] != '\0' && name[i] != '=')
4920                 i++;
4921         name[i] = '\0';
4922
4923         best_option = -1;
4924         best_distance = INT_MAX;
4925         i = 0;
4926         while (fio_options[i].name) {
4927                 distance = string_distance(name, fio_options[i].name);
4928                 if (distance < best_distance) {
4929                         best_distance = distance;
4930                         best_option = i;
4931                 }
4932                 i++;
4933         }
4934
4935         if (best_option != -1 && string_distance_ok(name, best_distance) &&
4936             fio_options[best_option].type != FIO_OPT_UNSUPPORTED)
4937                 log_err("Did you mean %s?\n", fio_options[best_option].name);
4938
4939         free(name);
4940 }
4941
4942 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
4943 {
4944         int i, ret, unknown;
4945         char **opts_copy;
4946
4947         sort_options(opts, fio_options, num_opts);
4948         opts_copy = dup_and_sub_options(opts, num_opts);
4949
4950         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
4951                 const struct fio_option *o;
4952                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
4953                                                 &o, &td->o, &td->opt_list);
4954
4955                 if (!newret && o)
4956                         fio_option_mark_set(&td->o, o);
4957
4958                 if (opts_copy[i]) {
4959                         if (newret && !o) {
4960                                 unknown++;
4961                                 continue;
4962                         }
4963                         free(opts_copy[i]);
4964                         opts_copy[i] = NULL;
4965                 }
4966
4967                 ret |= newret;
4968         }
4969
4970         if (unknown) {
4971                 ret |= ioengine_load(td);
4972                 if (td->eo) {
4973                         sort_options(opts_copy, td->io_ops->options, num_opts);
4974                         opts = opts_copy;
4975                 }
4976                 for (i = 0; i < num_opts; i++) {
4977                         const struct fio_option *o = NULL;
4978                         int newret = 1;
4979
4980                         if (!opts_copy[i])
4981                                 continue;
4982
4983                         if (td->eo)
4984                                 newret = parse_option(opts_copy[i], opts[i],
4985                                                       td->io_ops->options, &o,
4986                                                       td->eo, &td->opt_list);
4987
4988                         ret |= newret;
4989                         if (!o) {
4990                                 log_err("Bad option <%s>\n", opts[i]);
4991                                 show_closest_option(opts[i]);
4992                         }
4993                         free(opts_copy[i]);
4994                         opts_copy[i] = NULL;
4995                 }
4996         }
4997
4998         free(opts_copy);
4999         return ret;
5000 }
5001
5002 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
5003 {
5004         int ret;
5005
5006         ret = parse_cmd_option(opt, val, fio_options, &td->o, &td->opt_list);
5007         if (!ret) {
5008                 const struct fio_option *o;
5009
5010                 o = find_option_c(fio_options, opt);
5011                 if (o)
5012                         fio_option_mark_set(&td->o, o);
5013         }
5014
5015         return ret;
5016 }
5017
5018 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
5019                                 char *val)
5020 {
5021         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
5022                                         &td->opt_list);
5023 }
5024
5025 void fio_fill_default_options(struct thread_data *td)
5026 {
5027         td->o.magic = OPT_MAGIC;
5028         fill_default_options(&td->o, fio_options);
5029 }
5030
5031 int fio_show_option_help(const char *opt)
5032 {
5033         return show_cmd_help(fio_options, opt);
5034 }
5035
5036 /*
5037  * dupe FIO_OPT_STR_STORE options
5038  */
5039 void fio_options_mem_dupe(struct thread_data *td)
5040 {
5041         options_mem_dupe(fio_options, &td->o);
5042
5043         if (td->eo && td->io_ops) {
5044                 void *oldeo = td->eo;
5045
5046                 td->eo = malloc(td->io_ops->option_struct_size);
5047                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
5048                 options_mem_dupe(td->io_ops->options, td->eo);
5049         }
5050 }
5051
5052 unsigned int fio_get_kb_base(void *data)
5053 {
5054         struct thread_data *td = cb_data_to_td(data);
5055         struct thread_options *o = &td->o;
5056         unsigned int kb_base = 0;
5057
5058         /*
5059          * This is a hack... For private options, *data is not holding
5060          * a pointer to the thread_options, but to private data. This means
5061          * we can't safely dereference it, but magic is first so mem wise
5062          * it is valid. But this also means that if the job first sets
5063          * kb_base and expects that to be honored by private options,
5064          * it will be disappointed. We will return the global default
5065          * for this.
5066          */
5067         if (o && o->magic == OPT_MAGIC)
5068                 kb_base = o->kb_base;
5069         if (!kb_base)
5070                 kb_base = 1024;
5071
5072         return kb_base;
5073 }
5074
5075 int add_option(const struct fio_option *o)
5076 {
5077         struct fio_option *__o;
5078         int opt_index = 0;
5079
5080         __o = fio_options;
5081         while (__o->name) {
5082                 opt_index++;
5083                 __o++;
5084         }
5085
5086         if (opt_index + 1 == FIO_MAX_OPTS) {
5087                 log_err("fio: FIO_MAX_OPTS is too small\n");
5088                 return 1;
5089         }
5090
5091         memcpy(&fio_options[opt_index], o, sizeof(*o));
5092         fio_options[opt_index + 1].name = NULL;
5093         return 0;
5094 }
5095
5096 void invalidate_profile_options(const char *prof_name)
5097 {
5098         struct fio_option *o;
5099
5100         o = fio_options;
5101         while (o->name) {
5102                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
5103                         o->type = FIO_OPT_INVALID;
5104                         o->prof_name = NULL;
5105                 }
5106                 o++;
5107         }
5108 }
5109
5110 void add_opt_posval(const char *optname, const char *ival, const char *help)
5111 {
5112         struct fio_option *o;
5113         unsigned int i;
5114
5115         o = find_option(fio_options, optname);
5116         if (!o)
5117                 return;
5118
5119         for (i = 0; i < PARSE_MAX_VP; i++) {
5120                 if (o->posval[i].ival)
5121                         continue;
5122
5123                 o->posval[i].ival = ival;
5124                 o->posval[i].help = help;
5125                 break;
5126         }
5127 }
5128
5129 void del_opt_posval(const char *optname, const char *ival)
5130 {
5131         struct fio_option *o;
5132         unsigned int i;
5133
5134         o = find_option(fio_options, optname);
5135         if (!o)
5136                 return;
5137
5138         for (i = 0; i < PARSE_MAX_VP; i++) {
5139                 if (!o->posval[i].ival)
5140                         continue;
5141                 if (strcmp(o->posval[i].ival, ival))
5142                         continue;
5143
5144                 o->posval[i].ival = NULL;
5145                 o->posval[i].help = NULL;
5146         }
5147 }
5148
5149 void fio_options_free(struct thread_data *td)
5150 {
5151         options_free(fio_options, &td->o);
5152         if (td->eo && td->io_ops && td->io_ops->options) {
5153                 options_free(td->io_ops->options, td->eo);
5154                 free(td->eo);
5155                 td->eo = NULL;
5156         }
5157 }
5158
5159 struct fio_option *fio_option_find(const char *name)
5160 {
5161         return find_option(fio_options, name);
5162 }
5163
5164 static struct fio_option *find_next_opt(struct fio_option *from,
5165                                         unsigned int off1)
5166 {
5167         struct fio_option *opt;
5168
5169         if (!from)
5170                 from = &fio_options[0];
5171         else
5172                 from++;
5173
5174         opt = NULL;
5175         do {
5176                 if (off1 == from->off1) {
5177                         opt = from;
5178                         break;
5179                 }
5180                 from++;
5181         } while (from->name);
5182
5183         return opt;
5184 }
5185
5186 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
5187 {
5188         unsigned int opt_off, index, offset;
5189
5190         opt_off = opt - &fio_options[0];
5191         index = opt_off / (8 * sizeof(uint64_t));
5192         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5193         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
5194 }
5195
5196 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
5197 {
5198         struct fio_option *opt, *next;
5199
5200         next = NULL;
5201         while ((opt = find_next_opt(next, off1)) != NULL) {
5202                 if (opt_is_set(o, opt))
5203                         return true;
5204
5205                 next = opt;
5206         }
5207
5208         return false;
5209 }
5210
5211 void fio_option_mark_set(struct thread_options *o, const struct fio_option *opt)
5212 {
5213         unsigned int opt_off, index, offset;
5214
5215         opt_off = opt - &fio_options[0];
5216         index = opt_off / (8 * sizeof(uint64_t));
5217         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5218         o->set_options[index] |= (uint64_t)1 << offset;
5219 }