options.c

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