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 <libgen.h>
   8 #include <fcntl.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <netinet/in.h>
  12
  13 #include "fio.h"
  14 #include "verify.h"
  15 #include "parse.h"
  16 #include "lib/fls.h"
  17 #include "lib/pattern.h"
  18 #include "options.h"
  19 #include "optgroup.h"
  20
  21 char client_sockaddr_str[INET6_ADDRSTRLEN] = { 0 };
  22
  23 struct pattern_fmt_desc fmt_desc[] = {
  24         {
  25                 .fmt   = "%o",
  26                 .len   = FIELD_SIZE(struct io_u *, offset),
  27                 .paste = paste_blockoff
  28         }
  29 };
  30
  31 /*
  32  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  33  */
  34 static char *get_opt_postfix(const char *str)
  35 {
  36         char *p = strstr(str, ":");
  37
  38         if (!p)
  39                 return NULL;
  40
  41         p++;
  42         strip_blank_front(&p);
  43         strip_blank_end(p);
  44         return strdup(p);
  45 }
  46
  47 static int bs_cmp(const void *p1, const void *p2)
  48 {
  49         const struct bssplit *bsp1 = p1;
  50         const struct bssplit *bsp2 = p2;
  51
  52         return bsp1->perc < bsp2->perc;
  53 }
  54
  55 static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
  56 {
  57         struct bssplit *bssplit;
  58         unsigned int i, perc, perc_missing;
  59         unsigned int max_bs, min_bs;
  60         long long val;
  61         char *fname;
  62
  63         o->bssplit_nr[ddir] = 4;
  64         bssplit = malloc(4 * sizeof(struct bssplit));
  65
  66         i = 0;
  67         max_bs = 0;
  68         min_bs = -1;
  69         while ((fname = strsep(&str, ":")) != NULL) {
  70                 char *perc_str;
  71
  72                 if (!strlen(fname))
  73                         break;
  74
  75                 /*
  76                  * grow struct buffer, if needed
  77                  */
  78                 if (i == o->bssplit_nr[ddir]) {
  79                         o->bssplit_nr[ddir] <<= 1;
  80                         bssplit = realloc(bssplit, o->bssplit_nr[ddir]
  81                                                   * sizeof(struct bssplit));
  82                 }
  83
  84                 perc_str = strstr(fname, "/");
  85                 if (perc_str) {
  86                         *perc_str = '\0';
  87                         perc_str++;
  88                         perc = atoi(perc_str);
  89                         if (perc > 100)
  90                                 perc = 100;
  91                         else if (!perc)
  92                                 perc = -1U;
  93                 } else
  94                         perc = -1U;
  95
  96                 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
  97                         log_err("fio: bssplit conversion failed\n");
  98                         free(bssplit);
  99                         return 1;
 100                 }
 101
 102                 if (val > max_bs)
 103                         max_bs = val;
 104                 if (val < min_bs)
 105                         min_bs = val;
 106
 107                 bssplit[i].bs = val;
 108                 bssplit[i].perc = perc;
 109                 i++;
 110         }
 111
 112         o->bssplit_nr[ddir] = i;
 113
 114         /*
 115          * Now check if the percentages add up, and how much is missing
 116          */
 117         perc = perc_missing = 0;
 118         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 119                 struct bssplit *bsp = &bssplit[i];
 120
 121                 if (bsp->perc == -1U)
 122                         perc_missing++;
 123                 else
 124                         perc += bsp->perc;
 125         }
 126
 127         if (perc > 100 && perc_missing > 1) {
 128                 log_err("fio: bssplit percentages add to more than 100%%\n");
 129                 free(bssplit);
 130                 return 1;
 131         }
 132
 133         /*
 134          * If values didn't have a percentage set, divide the remains between
 135          * them.
 136          */
 137         if (perc_missing) {
 138                 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
 139                         perc = 100;
 140                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 141                         struct bssplit *bsp = &bssplit[i];
 142
 143                         if (bsp->perc == -1U)
 144                                 bsp->perc = (100 - perc) / perc_missing;
 145                 }
 146         }
 147
 148         o->min_bs[ddir] = min_bs;
 149         o->max_bs[ddir] = max_bs;
 150
 151         /*
 152          * now sort based on percentages, for ease of lookup
 153          */
 154         qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 155         o->bssplit[ddir] = bssplit;
 156         return 0;
 157 }
 158
 159 static int str_bssplit_cb(void *data, const char *input)
 160 {
 161         struct thread_data *td = data;
 162         char *str, *p, *odir, *ddir;
 163         int ret = 0;
 164
 165         if (parse_dryrun())
 166                 return 0;
 167
 168         p = str = strdup(input);
 169
 170         strip_blank_front(&str);
 171         strip_blank_end(str);
 172
 173         odir = strchr(str, ',');
 174         if (odir) {
 175                 ddir = strchr(odir + 1, ',');
 176                 if (ddir) {
 177                         ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
 178                         if (!ret)
 179                                 *ddir = '\0';
 180                 } else {
 181                         char *op;
 182
 183                         op = strdup(odir + 1);
 184                         ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
 185
 186                         free(op);
 187                 }
 188                 if (!ret)
 189                         ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
 190                 if (!ret) {
 191                         *odir = '\0';
 192                         ret = bssplit_ddir(&td->o, DDIR_READ, str);
 193                 }
 194         } else {
 195                 char *op;
 196
 197                 op = strdup(str);
 198                 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
 199                 free(op);
 200
 201                 if (!ret) {
 202                         op = strdup(str);
 203                         ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
 204                         free(op);
 205                 }
 206                 if (!ret)
 207                         ret = bssplit_ddir(&td->o, DDIR_READ, str);
 208         }
 209
 210         free(p);
 211         return ret;
 212 }
 213
 214 static int str2error(char *str)
 215 {
 216         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
 217                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
 218                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
 219                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
 220                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
 221                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
 222                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
 223                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
 224         int i = 0, num = sizeof(err) / sizeof(void *);
 225
 226         while (i < num) {
 227                 if (!strcmp(err[i], str))
 228                         return i + 1;
 229                 i++;
 230         }
 231         return 0;
 232 }
 233
 234 static int ignore_error_type(struct thread_data *td, int etype, char *str)
 235 {
 236         unsigned int i;
 237         int *error;
 238         char *fname;
 239
 240         if (etype >= ERROR_TYPE_CNT) {
 241                 log_err("Illegal error type\n");
 242                 return 1;
 243         }
 244
 245         td->o.ignore_error_nr[etype] = 4;
 246         error = malloc(4 * sizeof(struct bssplit));
 247
 248         i = 0;
 249         while ((fname = strsep(&str, ":")) != NULL) {
 250
 251                 if (!strlen(fname))
 252                         break;
 253
 254                 /*
 255                  * grow struct buffer, if needed
 256                  */
 257                 if (i == td->o.ignore_error_nr[etype]) {
 258                         td->o.ignore_error_nr[etype] <<= 1;
 259                         error = realloc(error, td->o.ignore_error_nr[etype]
 260                                                   * sizeof(int));
 261                 }
 262                 if (fname[0] == 'E') {
 263                         error[i] = str2error(fname);
 264                 } else {
 265                         error[i] = atoi(fname);
 266                         if (error[i] < 0)
 267                                 error[i] = -error[i];
 268                 }
 269                 if (!error[i]) {
 270                         log_err("Unknown error %s, please use number value \n",
 271                                   fname);
 272                         free(error);
 273                         return 1;
 274                 }
 275                 i++;
 276         }
 277         if (i) {
 278                 td->o.continue_on_error |= 1 << etype;
 279                 td->o.ignore_error_nr[etype] = i;
 280                 td->o.ignore_error[etype] = error;
 281         } else
 282                 free(error);
 283
 284         return 0;
 285
 286 }
 287
 288 static int str_ignore_error_cb(void *data, const char *input)
 289 {
 290         struct thread_data *td = data;
 291         char *str, *p, *n;
 292         int type = 0, ret = 1;
 293
 294         if (parse_dryrun())
 295                 return 0;
 296
 297         p = str = strdup(input);
 298
 299         strip_blank_front(&str);
 300         strip_blank_end(str);
 301
 302         while (p) {
 303                 n = strchr(p, ',');
 304                 if (n)
 305                         *n++ = '\0';
 306                 ret = ignore_error_type(td, type, p);
 307                 if (ret)
 308                         break;
 309                 p = n;
 310                 type++;
 311         }
 312         free(str);
 313         return ret;
 314 }
 315
 316 static int str_rw_cb(void *data, const char *str)
 317 {
 318         struct thread_data *td = data;
 319         struct thread_options *o = &td->o;
 320         char *nr;
 321
 322         if (parse_dryrun())
 323                 return 0;
 324
 325         o->ddir_seq_nr = 1;
 326         o->ddir_seq_add = 0;
 327
 328         nr = get_opt_postfix(str);
 329         if (!nr)
 330                 return 0;
 331
 332         if (td_random(td))
 333                 o->ddir_seq_nr = atoi(nr);
 334         else {
 335                 long long val;
 336
 337                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
 338                         log_err("fio: rw postfix parsing failed\n");
 339                         free(nr);
 340                         return 1;
 341                 }
 342
 343                 o->ddir_seq_add = val;
 344         }
 345
 346         free(nr);
 347         return 0;
 348 }
 349
 350 static int str_mem_cb(void *data, const char *mem)
 351 {
 352         struct thread_data *td = data;
 353
 354         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP ||
 355             td->o.mem_type == MEM_MMAPSHARED)
 356                 td->o.mmapfile = get_opt_postfix(mem);
 357
 358         return 0;
 359 }
 360
 361 static int fio_clock_source_cb(void *data, const char *str)
 362 {
 363         struct thread_data *td = data;
 364
 365         fio_clock_source = td->o.clocksource;
 366         fio_clock_source_set = 1;
 367         fio_clock_init();
 368         return 0;
 369 }
 370
 371 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 372 {
 373         struct thread_data *td = data;
 374
 375         td->o.rwmix[DDIR_READ] = *val;
 376         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 377         return 0;
 378 }
 379
 380 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 381 {
 382         struct thread_data *td = data;
 383
 384         td->o.rwmix[DDIR_WRITE] = *val;
 385         td->o.rwmix[DDIR_READ] = 100 - *val;
 386         return 0;
 387 }
 388
 389 static int str_exitall_cb(void)
 390 {
 391         exitall_on_terminate = 1;
 392         return 0;
 393 }
 394
 395 #ifdef FIO_HAVE_CPU_AFFINITY
 396 int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
 397 {
 398         unsigned int i, index, cpus_in_mask;
 399         const long max_cpu = cpus_online();
 400
 401         cpus_in_mask = fio_cpu_count(mask);
 402         cpu_index = cpu_index % cpus_in_mask;
 403
 404         index = 0;
 405         for (i = 0; i < max_cpu; i++) {
 406                 if (!fio_cpu_isset(mask, i))
 407                         continue;
 408
 409                 if (cpu_index != index)
 410                         fio_cpu_clear(mask, i);
 411
 412                 index++;
 413         }
 414
 415         return fio_cpu_count(mask);
 416 }
 417
 418 static int str_cpumask_cb(void *data, unsigned long long *val)
 419 {
 420         struct thread_data *td = data;
 421         unsigned int i;
 422         long max_cpu;
 423         int ret;
 424
 425         if (parse_dryrun())
 426                 return 0;
 427
 428         ret = fio_cpuset_init(&td->o.cpumask);
 429         if (ret < 0) {
 430                 log_err("fio: cpuset_init failed\n");
 431                 td_verror(td, ret, "fio_cpuset_init");
 432                 return 1;
 433         }
 434
 435         max_cpu = cpus_online();
 436
 437         for (i = 0; i < sizeof(int) * 8; i++) {
 438                 if ((1 << i) & *val) {
 439                         if (i >= max_cpu) {
 440                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 441                                                                 max_cpu - 1);
 442                                 return 1;
 443                         }
 444                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 445                         fio_cpu_set(&td->o.cpumask, i);
 446                 }
 447         }
 448
 449         return 0;
 450 }
 451
 452 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 453                             const char *input)
 454 {
 455         char *cpu, *str, *p;
 456         long max_cpu;
 457         int ret = 0;
 458
 459         ret = fio_cpuset_init(mask);
 460         if (ret < 0) {
 461                 log_err("fio: cpuset_init failed\n");
 462                 td_verror(td, ret, "fio_cpuset_init");
 463                 return 1;
 464         }
 465
 466         p = str = strdup(input);
 467
 468         strip_blank_front(&str);
 469         strip_blank_end(str);
 470
 471         max_cpu = cpus_online();
 472
 473         while ((cpu = strsep(&str, ",")) != NULL) {
 474                 char *str2, *cpu2;
 475                 int icpu, icpu2;
 476
 477                 if (!strlen(cpu))
 478                         break;
 479
 480                 str2 = cpu;
 481                 icpu2 = -1;
 482                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 483                         if (!strlen(cpu2))
 484                                 break;
 485
 486                         icpu2 = atoi(cpu2);
 487                 }
 488
 489                 icpu = atoi(cpu);
 490                 if (icpu2 == -1)
 491                         icpu2 = icpu;
 492                 while (icpu <= icpu2) {
 493                         if (icpu >= FIO_MAX_CPUS) {
 494                                 log_err("fio: your OS only supports up to"
 495                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 496                                 ret = 1;
 497                                 break;
 498                         }
 499                         if (icpu >= max_cpu) {
 500                                 log_err("fio: CPU %d too large (max=%ld)\n",
 501                                                         icpu, max_cpu - 1);
 502                                 ret = 1;
 503                                 break;
 504                         }
 505
 506                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 507                         fio_cpu_set(mask, icpu);
 508                         icpu++;
 509                 }
 510                 if (ret)
 511                         break;
 512         }
 513
 514         free(p);
 515         return ret;
 516 }
 517
 518 static int str_cpus_allowed_cb(void *data, const char *input)
 519 {
 520         struct thread_data *td = data;
 521
 522         if (parse_dryrun())
 523                 return 0;
 524
 525         return set_cpus_allowed(td, &td->o.cpumask, input);
 526 }
 527
 528 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 529 {
 530         struct thread_data *td = data;
 531
 532         if (parse_dryrun())
 533                 return 0;
 534
 535         return set_cpus_allowed(td, &td->o.verify_cpumask, input);
 536 }
 537
 538 #ifdef CONFIG_ZLIB
 539 static int str_log_cpus_allowed_cb(void *data, const char *input)
 540 {
 541         struct thread_data *td = data;
 542
 543         if (parse_dryrun())
 544                 return 0;
 545
 546         return set_cpus_allowed(td, &td->o.log_gz_cpumask, input);
 547 }
 548 #endif /* CONFIG_ZLIB */
 549
 550 #endif /* FIO_HAVE_CPU_AFFINITY */
 551
 552 #ifdef CONFIG_LIBNUMA
 553 static int str_numa_cpunodes_cb(void *data, char *input)
 554 {
 555         struct thread_data *td = data;
 556         struct bitmask *verify_bitmask;
 557
 558         if (parse_dryrun())
 559                 return 0;
 560
 561         /* numa_parse_nodestring() parses a character string list
 562          * of nodes into a bit mask. The bit mask is allocated by
 563          * numa_allocate_nodemask(), so it should be freed by
 564          * numa_free_nodemask().
 565          */
 566         verify_bitmask = numa_parse_nodestring(input);
 567         if (verify_bitmask == NULL) {
 568                 log_err("fio: numa_parse_nodestring failed\n");
 569                 td_verror(td, 1, "str_numa_cpunodes_cb");
 570                 return 1;
 571         }
 572         numa_free_nodemask(verify_bitmask);
 573
 574         td->o.numa_cpunodes = strdup(input);
 575         return 0;
 576 }
 577
 578 static int str_numa_mpol_cb(void *data, char *input)
 579 {
 580         struct thread_data *td = data;
 581         const char * const policy_types[] =
 582                 { "default", "prefer", "bind", "interleave", "local", NULL };
 583         int i;
 584         char *nodelist;
 585         struct bitmask *verify_bitmask;
 586
 587         if (parse_dryrun())
 588                 return 0;
 589
 590         nodelist = strchr(input, ':');
 591         if (nodelist) {
 592                 /* NUL-terminate mode */
 593                 *nodelist++ = '\0';
 594         }
 595
 596         for (i = 0; i <= MPOL_LOCAL; i++) {
 597                 if (!strcmp(input, policy_types[i])) {
 598                         td->o.numa_mem_mode = i;
 599                         break;
 600                 }
 601         }
 602         if (i > MPOL_LOCAL) {
 603                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
 604                 goto out;
 605         }
 606
 607         switch (td->o.numa_mem_mode) {
 608         case MPOL_PREFERRED:
 609                 /*
 610                  * Insist on a nodelist of one node only
 611                  */
 612                 if (nodelist) {
 613                         char *rest = nodelist;
 614                         while (isdigit(*rest))
 615                                 rest++;
 616                         if (*rest) {
 617                                 log_err("fio: one node only for \'prefer\'\n");
 618                                 goto out;
 619                         }
 620                 } else {
 621                         log_err("fio: one node is needed for \'prefer\'\n");
 622                         goto out;
 623                 }
 624                 break;
 625         case MPOL_INTERLEAVE:
 626                 /*
 627                  * Default to online nodes with memory if no nodelist
 628                  */
 629                 if (!nodelist)
 630                         nodelist = strdup("all");
 631                 break;
 632         case MPOL_LOCAL:
 633         case MPOL_DEFAULT:
 634                 /*
 635                  * Don't allow a nodelist
 636                  */
 637                 if (nodelist) {
 638                         log_err("fio: NO nodelist for \'local\'\n");
 639                         goto out;
 640                 }
 641                 break;
 642         case MPOL_BIND:
 643                 /*
 644                  * Insist on a nodelist
 645                  */
 646                 if (!nodelist) {
 647                         log_err("fio: a nodelist is needed for \'bind\'\n");
 648                         goto out;
 649                 }
 650                 break;
 651         }
 652
 653
 654         /* numa_parse_nodestring() parses a character string list
 655          * of nodes into a bit mask. The bit mask is allocated by
 656          * numa_allocate_nodemask(), so it should be freed by
 657          * numa_free_nodemask().
 658          */
 659         switch (td->o.numa_mem_mode) {
 660         case MPOL_PREFERRED:
 661                 td->o.numa_mem_prefer_node = atoi(nodelist);
 662                 break;
 663         case MPOL_INTERLEAVE:
 664         case MPOL_BIND:
 665                 verify_bitmask = numa_parse_nodestring(nodelist);
 666                 if (verify_bitmask == NULL) {
 667                         log_err("fio: numa_parse_nodestring failed\n");
 668                         td_verror(td, 1, "str_numa_memnodes_cb");
 669                         return 1;
 670                 }
 671                 td->o.numa_memnodes = strdup(nodelist);
 672                 numa_free_nodemask(verify_bitmask);
 673
 674                 break;
 675         case MPOL_LOCAL:
 676         case MPOL_DEFAULT:
 677         default:
 678                 break;
 679         }
 680
 681         return 0;
 682 out:
 683         return 1;
 684 }
 685 #endif
 686
 687 static int str_fst_cb(void *data, const char *str)
 688 {
 689         struct thread_data *td = data;
 690         char *nr = get_opt_postfix(str);
 691
 692         td->file_service_nr = 1;
 693         if (nr) {
 694                 td->file_service_nr = atoi(nr);
 695                 free(nr);
 696         }
 697
 698         return 0;
 699 }
 700
 701 #ifdef CONFIG_SYNC_FILE_RANGE
 702 static int str_sfr_cb(void *data, const char *str)
 703 {
 704         struct thread_data *td = data;
 705         char *nr = get_opt_postfix(str);
 706
 707         td->sync_file_range_nr = 1;
 708         if (nr) {
 709                 td->sync_file_range_nr = atoi(nr);
 710                 free(nr);
 711         }
 712
 713         return 0;
 714 }
 715 #endif
 716
 717 static int str_random_distribution_cb(void *data, const char *str)
 718 {
 719         struct thread_data *td = data;
 720         double val;
 721         char *nr;
 722
 723         if (parse_dryrun())
 724                 return 0;
 725
 726         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
 727                 val = FIO_DEF_ZIPF;
 728         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
 729                 val = FIO_DEF_PARETO;
 730         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
 731                 val = 0.0;
 732         else
 733                 return 0;
 734
 735         nr = get_opt_postfix(str);
 736         if (nr && !str_to_float(nr, &val, 0)) {
 737                 log_err("fio: random postfix parsing failed\n");
 738                 free(nr);
 739                 return 1;
 740         }
 741
 742         free(nr);
 743
 744         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
 745                 if (val == 1.00) {
 746                         log_err("fio: zipf theta must different than 1.0\n");
 747                         return 1;
 748                 }
 749                 td->o.zipf_theta.u.f = val;
 750         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
 751                 if (val <= 0.00 || val >= 1.00) {
 752                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
 753                         return 1;
 754                 }
 755                 td->o.pareto_h.u.f = val;
 756         } else {
 757                 if (val <= 0.00 || val >= 100.0) {
 758                         log_err("fio: normal deviation out of range (0 < input < 100.0)\n");
 759                         return 1;
 760                 }
 761                 td->o.gauss_dev.u.f = val;
 762         }
 763
 764         return 0;
 765 }
 766
 767 /*
 768  * Return next name in the string. Files are separated with ':'. If the ':'
 769  * is escaped with a '\', then that ':' is part of the filename and does not
 770  * indicate a new file.
 771  */
 772 static char *get_next_name(char **ptr)
 773 {
 774         char *str = *ptr;
 775         char *p, *start;
 776
 777         if (!str || !strlen(str))
 778                 return NULL;
 779
 780         start = str;
 781         do {
 782                 /*
 783                  * No colon, we are done
 784                  */
 785                 p = strchr(str, ':');
 786                 if (!p) {
 787                         *ptr = NULL;
 788                         break;
 789                 }
 790
 791                 /*
 792                  * We got a colon, but it's the first character. Skip and
 793                  * continue
 794                  */
 795                 if (p == start) {
 796                         str = ++start;
 797                         continue;
 798                 }
 799
 800                 if (*(p - 1) != '\\') {
 801                         *p = '\0';
 802                         *ptr = p + 1;
 803                         break;
 804                 }
 805
 806                 memmove(p - 1, p, strlen(p) + 1);
 807                 str = p;
 808         } while (1);
 809
 810         return start;
 811 }
 812
 813
 814 static int get_max_name_idx(char *input)
 815 {
 816         unsigned int cur_idx;
 817         char *str, *p;
 818
 819         p = str = strdup(input);
 820         for (cur_idx = 0; ; cur_idx++)
 821                 if (get_next_name(&str) == NULL)
 822                         break;
 823
 824         free(p);
 825         return cur_idx;
 826 }
 827
 828 /*
 829  * Returns the directory at the index, indexes > entires will be
 830  * assigned via modulo division of the index
 831  */
 832 int set_name_idx(char *target, size_t tlen, char *input, int index)
 833 {
 834         unsigned int cur_idx;
 835         int len;
 836         char *fname, *str, *p;
 837
 838         p = str = strdup(input);
 839
 840         index %= get_max_name_idx(input);
 841         for (cur_idx = 0; cur_idx <= index; cur_idx++)
 842                 fname = get_next_name(&str);
 843
 844         if (client_sockaddr_str[0]) {
 845                 len = snprintf(target, tlen, "%s/%s.", fname,
 846                                 client_sockaddr_str);
 847         } else
 848                 len = snprintf(target, tlen, "%s/", fname);
 849
 850         target[tlen - 1] = '\0';
 851         free(p);
 852
 853         return len;
 854 }
 855
 856 static int str_filename_cb(void *data, const char *input)
 857 {
 858         struct thread_data *td = data;
 859         char *fname, *str, *p;
 860
 861         p = str = strdup(input);
 862
 863         strip_blank_front(&str);
 864         strip_blank_end(str);
 865
 866         if (!td->files_index)
 867                 td->o.nr_files = 0;
 868
 869         while ((fname = get_next_name(&str)) != NULL) {
 870                 if (!strlen(fname))
 871                         break;
 872                 add_file(td, fname, 0, 1);
 873         }
 874
 875         free(p);
 876         return 0;
 877 }
 878
 879 static int str_directory_cb(void *data, const char fio_unused *unused)
 880 {
 881         struct thread_data *td = data;
 882         struct stat sb;
 883         char *dirname, *str, *p;
 884         int ret = 0;
 885
 886         if (parse_dryrun())
 887                 return 0;
 888
 889         p = str = strdup(td->o.directory);
 890         while ((dirname = get_next_name(&str)) != NULL) {
 891                 if (lstat(dirname, &sb) < 0) {
 892                         ret = errno;
 893
 894                         log_err("fio: %s is not a directory\n", dirname);
 895                         td_verror(td, ret, "lstat");
 896                         goto out;
 897                 }
 898                 if (!S_ISDIR(sb.st_mode)) {
 899                         log_err("fio: %s is not a directory\n", dirname);
 900                         ret = 1;
 901                         goto out;
 902                 }
 903         }
 904
 905 out:
 906         free(p);
 907         return ret;
 908 }
 909
 910 static int str_opendir_cb(void *data, const char fio_unused *str)
 911 {
 912         struct thread_data *td = data;
 913
 914         if (parse_dryrun())
 915                 return 0;
 916
 917         if (!td->files_index)
 918                 td->o.nr_files = 0;
 919
 920         return add_dir_files(td, td->o.opendir);
 921 }
 922
 923 static int str_buffer_pattern_cb(void *data, const char *input)
 924 {
 925         struct thread_data *td = data;
 926         int ret;
 927
 928         /* FIXME: for now buffer pattern does not support formats */
 929         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
 930                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
 931         if (ret < 0)
 932                 return 1;
 933
 934         assert(ret != 0);
 935         td->o.buffer_pattern_bytes = ret;
 936         if (!td->o.compress_percentage)
 937                 td->o.refill_buffers = 0;
 938         td->o.scramble_buffers = 0;
 939         td->o.zero_buffers = 0;
 940
 941         return 0;
 942 }
 943
 944 static int str_buffer_compress_cb(void *data, unsigned long long *il)
 945 {
 946         struct thread_data *td = data;
 947
 948         td->flags |= TD_F_COMPRESS;
 949         td->o.compress_percentage = *il;
 950         return 0;
 951 }
 952
 953 static int str_dedupe_cb(void *data, unsigned long long *il)
 954 {
 955         struct thread_data *td = data;
 956
 957         td->flags |= TD_F_COMPRESS;
 958         td->o.dedupe_percentage = *il;
 959         td->o.refill_buffers = 1;
 960         return 0;
 961 }
 962
 963 static int str_verify_pattern_cb(void *data, const char *input)
 964 {
 965         struct thread_data *td = data;
 966         int ret;
 967
 968         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
 969         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
 970                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
 971                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
 972         if (ret < 0)
 973                 return 1;
 974
 975         assert(ret != 0);
 976         td->o.verify_pattern_bytes = ret;
 977         /*
 978          * VERIFY_* could already be set
 979          */
 980         if (!fio_option_is_set(&td->o, verify))
 981                 td->o.verify = VERIFY_PATTERN;
 982
 983         return 0;
 984 }
 985
 986 static int str_gtod_reduce_cb(void *data, int *il)
 987 {
 988         struct thread_data *td = data;
 989         int val = *il;
 990
 991         td->o.disable_lat = !!val;
 992         td->o.disable_clat = !!val;
 993         td->o.disable_slat = !!val;
 994         td->o.disable_bw = !!val;
 995         td->o.clat_percentiles = !val;
 996         if (val)
 997                 td->tv_cache_mask = 63;
 998
 999         return 0;
1000 }
1001
1002 static int str_size_cb(void *data, unsigned long long *__val)
1003 {
1004         struct thread_data *td = data;
1005         unsigned long long v = *__val;
1006
1007         if (parse_is_percent(v)) {
1008                 td->o.size = 0;
1009                 td->o.size_percent = -1ULL - v;
1010         } else
1011                 td->o.size = v;
1012
1013         return 0;
1014 }
1015
1016 static int rw_verify(struct fio_option *o, void *data)
1017 {
1018         struct thread_data *td = data;
1019
1020         if (read_only && td_write(td)) {
1021                 log_err("fio: job <%s> has write bit set, but fio is in"
1022                         " read-only mode\n", td->o.name);
1023                 return 1;
1024         }
1025
1026         return 0;
1027 }
1028
1029 static int gtod_cpu_verify(struct fio_option *o, void *data)
1030 {
1031 #ifndef FIO_HAVE_CPU_AFFINITY
1032         struct thread_data *td = data;
1033
1034         if (td->o.gtod_cpu) {
1035                 log_err("fio: platform must support CPU affinity for"
1036                         "gettimeofday() offloading\n");
1037                 return 1;
1038         }
1039 #endif
1040
1041         return 0;
1042 }
1043
1044 /*
1045  * Map of job/command line options
1046  */
1047 struct fio_option fio_options[FIO_MAX_OPTS] = {
1048         {
1049                 .name   = "description",
1050                 .lname  = "Description of job",
1051                 .type   = FIO_OPT_STR_STORE,
1052                 .off1   = td_var_offset(description),
1053                 .help   = "Text job description",
1054                 .category = FIO_OPT_C_GENERAL,
1055                 .group  = FIO_OPT_G_DESC,
1056         },
1057         {
1058                 .name   = "name",
1059                 .lname  = "Job name",
1060                 .type   = FIO_OPT_STR_STORE,
1061                 .off1   = td_var_offset(name),
1062                 .help   = "Name of this job",
1063                 .category = FIO_OPT_C_GENERAL,
1064                 .group  = FIO_OPT_G_DESC,
1065         },
1066         {
1067                 .name   = "wait_for",
1068                 .lname  = "Waitee name",
1069                 .type   = FIO_OPT_STR_STORE,
1070                 .off1   = td_var_offset(wait_for),
1071                 .help   = "Name of the job this one wants to wait for before starting",
1072                 .category = FIO_OPT_C_GENERAL,
1073                 .group  = FIO_OPT_G_DESC,
1074         },
1075         {
1076                 .name   = "filename",
1077                 .lname  = "Filename(s)",
1078                 .type   = FIO_OPT_STR_STORE,
1079                 .off1   = td_var_offset(filename),
1080                 .cb     = str_filename_cb,
1081                 .prio   = -1, /* must come after "directory" */
1082                 .help   = "File(s) to use for the workload",
1083                 .category = FIO_OPT_C_FILE,
1084                 .group  = FIO_OPT_G_FILENAME,
1085         },
1086         {
1087                 .name   = "directory",
1088                 .lname  = "Directory",
1089                 .type   = FIO_OPT_STR_STORE,
1090                 .off1   = td_var_offset(directory),
1091                 .cb     = str_directory_cb,
1092                 .help   = "Directory to store files in",
1093                 .category = FIO_OPT_C_FILE,
1094                 .group  = FIO_OPT_G_FILENAME,
1095         },
1096         {
1097                 .name   = "filename_format",
1098                 .type   = FIO_OPT_STR_STORE,
1099                 .off1   = td_var_offset(filename_format),
1100                 .prio   = -1, /* must come after "directory" */
1101                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1102                 .def    = "$jobname.$jobnum.$filenum",
1103                 .category = FIO_OPT_C_FILE,
1104                 .group  = FIO_OPT_G_FILENAME,
1105         },
1106         {
1107                 .name   = "lockfile",
1108                 .lname  = "Lockfile",
1109                 .type   = FIO_OPT_STR,
1110                 .off1   = td_var_offset(file_lock_mode),
1111                 .help   = "Lock file when doing IO to it",
1112                 .prio   = 1,
1113                 .parent = "filename",
1114                 .hide   = 0,
1115                 .def    = "none",
1116                 .category = FIO_OPT_C_FILE,
1117                 .group  = FIO_OPT_G_FILENAME,
1118                 .posval = {
1119                           { .ival = "none",
1120                             .oval = FILE_LOCK_NONE,
1121                             .help = "No file locking",
1122                           },
1123                           { .ival = "exclusive",
1124                             .oval = FILE_LOCK_EXCLUSIVE,
1125                             .help = "Exclusive file lock",
1126                           },
1127                           {
1128                             .ival = "readwrite",
1129                             .oval = FILE_LOCK_READWRITE,
1130                             .help = "Read vs write lock",
1131                           },
1132                 },
1133         },
1134         {
1135                 .name   = "opendir",
1136                 .lname  = "Open directory",
1137                 .type   = FIO_OPT_STR_STORE,
1138                 .off1   = td_var_offset(opendir),
1139                 .cb     = str_opendir_cb,
1140                 .help   = "Recursively add files from this directory and down",
1141                 .category = FIO_OPT_C_FILE,
1142                 .group  = FIO_OPT_G_FILENAME,
1143         },
1144         {
1145                 .name   = "rw",
1146                 .lname  = "Read/write",
1147                 .alias  = "readwrite",
1148                 .type   = FIO_OPT_STR,
1149                 .cb     = str_rw_cb,
1150                 .off1   = td_var_offset(td_ddir),
1151                 .help   = "IO direction",
1152                 .def    = "read",
1153                 .verify = rw_verify,
1154                 .category = FIO_OPT_C_IO,
1155                 .group  = FIO_OPT_G_IO_BASIC,
1156                 .posval = {
1157                           { .ival = "read",
1158                             .oval = TD_DDIR_READ,
1159                             .help = "Sequential read",
1160                           },
1161                           { .ival = "write",
1162                             .oval = TD_DDIR_WRITE,
1163                             .help = "Sequential write",
1164                           },
1165                           { .ival = "trim",
1166                             .oval = TD_DDIR_TRIM,
1167                             .help = "Sequential trim",
1168                           },
1169                           { .ival = "randread",
1170                             .oval = TD_DDIR_RANDREAD,
1171                             .help = "Random read",
1172                           },
1173                           { .ival = "randwrite",
1174                             .oval = TD_DDIR_RANDWRITE,
1175                             .help = "Random write",
1176                           },
1177                           { .ival = "randtrim",
1178                             .oval = TD_DDIR_RANDTRIM,
1179                             .help = "Random trim",
1180                           },
1181                           { .ival = "rw",
1182                             .oval = TD_DDIR_RW,
1183                             .help = "Sequential read and write mix",
1184                           },
1185                           { .ival = "readwrite",
1186                             .oval = TD_DDIR_RW,
1187                             .help = "Sequential read and write mix",
1188                           },
1189                           { .ival = "randrw",
1190                             .oval = TD_DDIR_RANDRW,
1191                             .help = "Random read and write mix"
1192                           },
1193                           { .ival = "trimwrite",
1194                             .oval = TD_DDIR_TRIMWRITE,
1195                             .help = "Trim and write mix, trims preceding writes"
1196                           },
1197                 },
1198         },
1199         {
1200                 .name   = "rw_sequencer",
1201                 .lname  = "RW Sequencer",
1202                 .type   = FIO_OPT_STR,
1203                 .off1   = td_var_offset(rw_seq),
1204                 .help   = "IO offset generator modifier",
1205                 .def    = "sequential",
1206                 .category = FIO_OPT_C_IO,
1207                 .group  = FIO_OPT_G_IO_BASIC,
1208                 .posval = {
1209                           { .ival = "sequential",
1210                             .oval = RW_SEQ_SEQ,
1211                             .help = "Generate sequential offsets",
1212                           },
1213                           { .ival = "identical",
1214                             .oval = RW_SEQ_IDENT,
1215                             .help = "Generate identical offsets",
1216                           },
1217                 },
1218         },
1219
1220         {
1221                 .name   = "ioengine",
1222                 .lname  = "IO Engine",
1223                 .type   = FIO_OPT_STR_STORE,
1224                 .off1   = td_var_offset(ioengine),
1225                 .help   = "IO engine to use",
1226                 .def    = FIO_PREFERRED_ENGINE,
1227                 .category = FIO_OPT_C_IO,
1228                 .group  = FIO_OPT_G_IO_BASIC,
1229                 .posval = {
1230                           { .ival = "sync",
1231                             .help = "Use read/write",
1232                           },
1233                           { .ival = "psync",
1234                             .help = "Use pread/pwrite",
1235                           },
1236                           { .ival = "vsync",
1237                             .help = "Use readv/writev",
1238                           },
1239 #ifdef CONFIG_PWRITEV
1240                           { .ival = "pvsync",
1241                             .help = "Use preadv/pwritev",
1242                           },
1243 #endif
1244 #ifdef CONFIG_LIBAIO
1245                           { .ival = "libaio",
1246                             .help = "Linux native asynchronous IO",
1247                           },
1248 #endif
1249 #ifdef CONFIG_POSIXAIO
1250                           { .ival = "posixaio",
1251                             .help = "POSIX asynchronous IO",
1252                           },
1253 #endif
1254 #ifdef CONFIG_SOLARISAIO
1255                           { .ival = "solarisaio",
1256                             .help = "Solaris native asynchronous IO",
1257                           },
1258 #endif
1259 #ifdef CONFIG_WINDOWSAIO
1260                           { .ival = "windowsaio",
1261                             .help = "Windows native asynchronous IO"
1262                           },
1263 #endif
1264 #ifdef CONFIG_RBD
1265                           { .ival = "rbd",
1266                             .help = "Rados Block Device asynchronous IO"
1267                           },
1268 #endif
1269                           { .ival = "mmap",
1270                             .help = "Memory mapped IO"
1271                           },
1272 #ifdef CONFIG_LINUX_SPLICE
1273                           { .ival = "splice",
1274                             .help = "splice/vmsplice based IO",
1275                           },
1276                           { .ival = "netsplice",
1277                             .help = "splice/vmsplice to/from the network",
1278                           },
1279 #endif
1280 #ifdef FIO_HAVE_SGIO
1281                           { .ival = "sg",
1282                             .help = "SCSI generic v3 IO",
1283                           },
1284 #endif
1285                           { .ival = "null",
1286                             .help = "Testing engine (no data transfer)",
1287                           },
1288                           { .ival = "net",
1289                             .help = "Network IO",
1290                           },
1291                           { .ival = "cpuio",
1292                             .help = "CPU cycle burner engine",
1293                           },
1294 #ifdef CONFIG_GUASI
1295                           { .ival = "guasi",
1296                             .help = "GUASI IO engine",
1297                           },
1298 #endif
1299 #ifdef FIO_HAVE_BINJECT
1300                           { .ival = "binject",
1301                             .help = "binject direct inject block engine",
1302                           },
1303 #endif
1304 #ifdef CONFIG_RDMA
1305                           { .ival = "rdma",
1306                             .help = "RDMA IO engine",
1307                           },
1308 #endif
1309 #ifdef CONFIG_FUSION_AW
1310                           { .ival = "fusion-aw-sync",
1311                             .help = "Fusion-io atomic write engine",
1312                           },
1313 #endif
1314 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1315                           { .ival = "e4defrag",
1316                             .help = "ext4 defrag engine",
1317                           },
1318 #endif
1319 #ifdef CONFIG_LINUX_FALLOCATE
1320                           { .ival = "falloc",
1321                             .help = "fallocate() file based engine",
1322                           },
1323 #endif
1324 #ifdef CONFIG_GFAPI
1325                           { .ival = "gfapi",
1326                             .help = "Glusterfs libgfapi(sync) based engine"
1327                           },
1328                           { .ival = "gfapi_async",
1329                             .help = "Glusterfs libgfapi(async) based engine"
1330                           },
1331 #endif
1332 #ifdef CONFIG_LIBHDFS
1333                           { .ival = "libhdfs",
1334                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1335                           },
1336 #endif
1337                           { .ival = "external",
1338                             .help = "Load external engine (append name)",
1339                           },
1340                 },
1341         },
1342         {
1343                 .name   = "iodepth",
1344                 .lname  = "IO Depth",
1345                 .type   = FIO_OPT_INT,
1346                 .off1   = td_var_offset(iodepth),
1347                 .help   = "Number of IO buffers to keep in flight",
1348                 .minval = 1,
1349                 .interval = 1,
1350                 .def    = "1",
1351                 .category = FIO_OPT_C_IO,
1352                 .group  = FIO_OPT_G_IO_BASIC,
1353         },
1354         {
1355                 .name   = "iodepth_batch",
1356                 .lname  = "IO Depth batch",
1357                 .alias  = "iodepth_batch_submit",
1358                 .type   = FIO_OPT_INT,
1359                 .off1   = td_var_offset(iodepth_batch),
1360                 .help   = "Number of IO buffers to submit in one go",
1361                 .parent = "iodepth",
1362                 .hide   = 1,
1363                 .minval = 1,
1364                 .interval = 1,
1365                 .def    = "1",
1366                 .category = FIO_OPT_C_IO,
1367                 .group  = FIO_OPT_G_IO_BASIC,
1368         },
1369         {
1370                 .name   = "iodepth_batch_complete_min",
1371                 .lname  = "Min IO depth batch complete",
1372                 .alias  = "iodepth_batch_complete",
1373                 .type   = FIO_OPT_INT,
1374                 .off1   = td_var_offset(iodepth_batch_complete_min),
1375                 .help   = "Min number of IO buffers to retrieve in one go",
1376                 .parent = "iodepth",
1377                 .hide   = 1,
1378                 .minval = 0,
1379                 .interval = 1,
1380                 .def    = "1",
1381                 .category = FIO_OPT_C_IO,
1382                 .group  = FIO_OPT_G_IO_BASIC,
1383         },
1384         {
1385                 .name   = "iodepth_batch_complete_max",
1386                 .lname  = "Max IO depth batch complete",
1387                 .type   = FIO_OPT_INT,
1388                 .off1   = td_var_offset(iodepth_batch_complete_max),
1389                 .help   = "Max number of IO buffers to retrieve in one go",
1390                 .parent = "iodepth",
1391                 .hide   = 1,
1392                 .minval = 0,
1393                 .interval = 1,
1394                 .category = FIO_OPT_C_IO,
1395                 .group  = FIO_OPT_G_IO_BASIC,
1396         },
1397         {
1398                 .name   = "iodepth_low",
1399                 .lname  = "IO Depth batch low",
1400                 .type   = FIO_OPT_INT,
1401                 .off1   = td_var_offset(iodepth_low),
1402                 .help   = "Low water mark for queuing depth",
1403                 .parent = "iodepth",
1404                 .hide   = 1,
1405                 .interval = 1,
1406                 .category = FIO_OPT_C_IO,
1407                 .group  = FIO_OPT_G_IO_BASIC,
1408         },
1409         {
1410                 .name   = "io_submit_mode",
1411                 .lname  = "IO submit mode",
1412                 .type   = FIO_OPT_STR,
1413                 .off1   = td_var_offset(io_submit_mode),
1414                 .help   = "How IO submissions and completions are done",
1415                 .def    = "inline",
1416                 .category = FIO_OPT_C_IO,
1417                 .group  = FIO_OPT_G_IO_BASIC,
1418                 .posval = {
1419                           { .ival = "inline",
1420                             .oval = IO_MODE_INLINE,
1421                             .help = "Submit and complete IO inline",
1422                           },
1423                           { .ival = "offload",
1424                             .oval = IO_MODE_OFFLOAD,
1425                             .help = "Offload submit and complete to threads",
1426                           },
1427                 },
1428         },
1429         {
1430                 .name   = "size",
1431                 .lname  = "Size",
1432                 .type   = FIO_OPT_STR_VAL,
1433                 .cb     = str_size_cb,
1434                 .off1   = td_var_offset(size),
1435                 .help   = "Total size of device or files",
1436                 .interval = 1024 * 1024,
1437                 .category = FIO_OPT_C_IO,
1438                 .group  = FIO_OPT_G_INVALID,
1439         },
1440         {
1441                 .name   = "io_size",
1442                 .alias  = "io_limit",
1443                 .lname  = "IO Size",
1444                 .type   = FIO_OPT_STR_VAL,
1445                 .off1   = td_var_offset(io_limit),
1446                 .interval = 1024 * 1024,
1447                 .category = FIO_OPT_C_IO,
1448                 .group  = FIO_OPT_G_INVALID,
1449         },
1450         {
1451                 .name   = "fill_device",
1452                 .lname  = "Fill device",
1453                 .alias  = "fill_fs",
1454                 .type   = FIO_OPT_BOOL,
1455                 .off1   = td_var_offset(fill_device),
1456                 .help   = "Write until an ENOSPC error occurs",
1457                 .def    = "0",
1458                 .category = FIO_OPT_C_FILE,
1459                 .group  = FIO_OPT_G_INVALID,
1460         },
1461         {
1462                 .name   = "filesize",
1463                 .lname  = "File size",
1464                 .type   = FIO_OPT_STR_VAL,
1465                 .off1   = td_var_offset(file_size_low),
1466                 .off2   = td_var_offset(file_size_high),
1467                 .minval = 1,
1468                 .help   = "Size of individual files",
1469                 .interval = 1024 * 1024,
1470                 .category = FIO_OPT_C_FILE,
1471                 .group  = FIO_OPT_G_INVALID,
1472         },
1473         {
1474                 .name   = "file_append",
1475                 .lname  = "File append",
1476                 .type   = FIO_OPT_BOOL,
1477                 .off1   = td_var_offset(file_append),
1478                 .help   = "IO will start at the end of the file(s)",
1479                 .def    = "0",
1480                 .category = FIO_OPT_C_FILE,
1481                 .group  = FIO_OPT_G_INVALID,
1482         },
1483         {
1484                 .name   = "offset",
1485                 .lname  = "IO offset",
1486                 .alias  = "fileoffset",
1487                 .type   = FIO_OPT_STR_VAL,
1488                 .off1   = td_var_offset(start_offset),
1489                 .help   = "Start IO from this offset",
1490                 .def    = "0",
1491                 .interval = 1024 * 1024,
1492                 .category = FIO_OPT_C_IO,
1493                 .group  = FIO_OPT_G_INVALID,
1494         },
1495         {
1496                 .name   = "offset_increment",
1497                 .lname  = "IO offset increment",
1498                 .type   = FIO_OPT_STR_VAL,
1499                 .off1   = td_var_offset(offset_increment),
1500                 .help   = "What is the increment from one offset to the next",
1501                 .parent = "offset",
1502                 .hide   = 1,
1503                 .def    = "0",
1504                 .interval = 1024 * 1024,
1505                 .category = FIO_OPT_C_IO,
1506                 .group  = FIO_OPT_G_INVALID,
1507         },
1508         {
1509                 .name   = "number_ios",
1510                 .lname  = "Number of IOs to perform",
1511                 .type   = FIO_OPT_STR_VAL,
1512                 .off1   = td_var_offset(number_ios),
1513                 .help   = "Force job completion after this number of IOs",
1514                 .def    = "0",
1515                 .category = FIO_OPT_C_IO,
1516                 .group  = FIO_OPT_G_INVALID,
1517         },
1518         {
1519                 .name   = "bs",
1520                 .lname  = "Block size",
1521                 .alias  = "blocksize",
1522                 .type   = FIO_OPT_INT,
1523                 .off1   = td_var_offset(bs[DDIR_READ]),
1524                 .off2   = td_var_offset(bs[DDIR_WRITE]),
1525                 .off3   = td_var_offset(bs[DDIR_TRIM]),
1526                 .minval = 1,
1527                 .help   = "Block size unit",
1528                 .def    = "4k",
1529                 .parent = "rw",
1530                 .hide   = 1,
1531                 .interval = 512,
1532                 .category = FIO_OPT_C_IO,
1533                 .group  = FIO_OPT_G_INVALID,
1534         },
1535         {
1536                 .name   = "ba",
1537                 .lname  = "Block size align",
1538                 .alias  = "blockalign",
1539                 .type   = FIO_OPT_INT,
1540                 .off1   = td_var_offset(ba[DDIR_READ]),
1541                 .off2   = td_var_offset(ba[DDIR_WRITE]),
1542                 .off3   = td_var_offset(ba[DDIR_TRIM]),
1543                 .minval = 1,
1544                 .help   = "IO block offset alignment",
1545                 .parent = "rw",
1546                 .hide   = 1,
1547                 .interval = 512,
1548                 .category = FIO_OPT_C_IO,
1549                 .group  = FIO_OPT_G_INVALID,
1550         },
1551         {
1552                 .name   = "bsrange",
1553                 .lname  = "Block size range",
1554                 .alias  = "blocksize_range",
1555                 .type   = FIO_OPT_RANGE,
1556                 .off1   = td_var_offset(min_bs[DDIR_READ]),
1557                 .off2   = td_var_offset(max_bs[DDIR_READ]),
1558                 .off3   = td_var_offset(min_bs[DDIR_WRITE]),
1559                 .off4   = td_var_offset(max_bs[DDIR_WRITE]),
1560                 .off5   = td_var_offset(min_bs[DDIR_TRIM]),
1561                 .off6   = td_var_offset(max_bs[DDIR_TRIM]),
1562                 .minval = 1,
1563                 .help   = "Set block size range (in more detail than bs)",
1564                 .parent = "rw",
1565                 .hide   = 1,
1566                 .interval = 4096,
1567                 .category = FIO_OPT_C_IO,
1568                 .group  = FIO_OPT_G_INVALID,
1569         },
1570         {
1571                 .name   = "bssplit",
1572                 .lname  = "Block size split",
1573                 .type   = FIO_OPT_STR,
1574                 .cb     = str_bssplit_cb,
1575                 .off1   = td_var_offset(bssplit),
1576                 .help   = "Set a specific mix of block sizes",
1577                 .parent = "rw",
1578                 .hide   = 1,
1579                 .category = FIO_OPT_C_IO,
1580                 .group  = FIO_OPT_G_INVALID,
1581         },
1582         {
1583                 .name   = "bs_unaligned",
1584                 .lname  = "Block size unaligned",
1585                 .alias  = "blocksize_unaligned",
1586                 .type   = FIO_OPT_STR_SET,
1587                 .off1   = td_var_offset(bs_unaligned),
1588                 .help   = "Don't sector align IO buffer sizes",
1589                 .parent = "rw",
1590                 .hide   = 1,
1591                 .category = FIO_OPT_C_IO,
1592                 .group  = FIO_OPT_G_INVALID,
1593         },
1594         {
1595                 .name   = "bs_is_seq_rand",
1596                 .lname  = "Block size division is seq/random (not read/write)",
1597                 .type   = FIO_OPT_BOOL,
1598                 .off1   = td_var_offset(bs_is_seq_rand),
1599                 .help   = "Consider any blocksize setting to be sequential,random",
1600                 .def    = "0",
1601                 .parent = "blocksize",
1602                 .category = FIO_OPT_C_IO,
1603                 .group  = FIO_OPT_G_INVALID,
1604         },
1605         {
1606                 .name   = "randrepeat",
1607                 .lname  = "Random repeatable",
1608                 .type   = FIO_OPT_BOOL,
1609                 .off1   = td_var_offset(rand_repeatable),
1610                 .help   = "Use repeatable random IO pattern",
1611                 .def    = "1",
1612                 .parent = "rw",
1613                 .hide   = 1,
1614                 .category = FIO_OPT_C_IO,
1615                 .group  = FIO_OPT_G_RANDOM,
1616         },
1617         {
1618                 .name   = "randseed",
1619                 .lname  = "The random generator seed",
1620                 .type   = FIO_OPT_STR_VAL,
1621                 .off1   = td_var_offset(rand_seed),
1622                 .help   = "Set the random generator seed value",
1623                 .def    = "0x89",
1624                 .parent = "rw",
1625                 .category = FIO_OPT_C_IO,
1626                 .group  = FIO_OPT_G_RANDOM,
1627         },
1628         {
1629                 .name   = "use_os_rand",
1630                 .lname  = "Use OS random",
1631                 .type   = FIO_OPT_DEPRECATED,
1632                 .off1   = td_var_offset(dep_use_os_rand),
1633                 .category = FIO_OPT_C_IO,
1634                 .group  = FIO_OPT_G_RANDOM,
1635         },
1636         {
1637                 .name   = "norandommap",
1638                 .lname  = "No randommap",
1639                 .type   = FIO_OPT_STR_SET,
1640                 .off1   = td_var_offset(norandommap),
1641                 .help   = "Accept potential duplicate random blocks",
1642                 .parent = "rw",
1643                 .hide   = 1,
1644                 .hide_on_set = 1,
1645                 .category = FIO_OPT_C_IO,
1646                 .group  = FIO_OPT_G_RANDOM,
1647         },
1648         {
1649                 .name   = "softrandommap",
1650                 .lname  = "Soft randommap",
1651                 .type   = FIO_OPT_BOOL,
1652                 .off1   = td_var_offset(softrandommap),
1653                 .help   = "Set norandommap if randommap allocation fails",
1654                 .parent = "norandommap",
1655                 .hide   = 1,
1656                 .def    = "0",
1657                 .category = FIO_OPT_C_IO,
1658                 .group  = FIO_OPT_G_RANDOM,
1659         },
1660         {
1661                 .name   = "random_generator",
1662                 .type   = FIO_OPT_STR,
1663                 .off1   = td_var_offset(random_generator),
1664                 .help   = "Type of random number generator to use",
1665                 .def    = "tausworthe",
1666                 .posval = {
1667                           { .ival = "tausworthe",
1668                             .oval = FIO_RAND_GEN_TAUSWORTHE,
1669                             .help = "Strong Tausworthe generator",
1670                           },
1671                           { .ival = "lfsr",
1672                             .oval = FIO_RAND_GEN_LFSR,
1673                             .help = "Variable length LFSR",
1674                           },
1675                           {
1676                             .ival = "tausworthe64",
1677                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
1678                             .help = "64-bit Tausworthe variant",
1679                           },
1680                 },
1681                 .category = FIO_OPT_C_IO,
1682                 .group  = FIO_OPT_G_RANDOM,
1683         },
1684         {
1685                 .name   = "random_distribution",
1686                 .type   = FIO_OPT_STR,
1687                 .off1   = td_var_offset(random_distribution),
1688                 .cb     = str_random_distribution_cb,
1689                 .help   = "Random offset distribution generator",
1690                 .def    = "random",
1691                 .posval = {
1692                           { .ival = "random",
1693                             .oval = FIO_RAND_DIST_RANDOM,
1694                             .help = "Completely random",
1695                           },
1696                           { .ival = "zipf",
1697                             .oval = FIO_RAND_DIST_ZIPF,
1698                             .help = "Zipf distribution",
1699                           },
1700                           { .ival = "pareto",
1701                             .oval = FIO_RAND_DIST_PARETO,
1702                             .help = "Pareto distribution",
1703                           },
1704                           { .ival = "normal",
1705                             .oval = FIO_RAND_DIST_GAUSS,
1706                             .help = "Normal (gaussian) distribution",
1707                           },
1708                 },
1709                 .category = FIO_OPT_C_IO,
1710                 .group  = FIO_OPT_G_RANDOM,
1711         },
1712         {
1713                 .name   = "percentage_random",
1714                 .lname  = "Percentage Random",
1715                 .type   = FIO_OPT_INT,
1716                 .off1   = td_var_offset(perc_rand[DDIR_READ]),
1717                 .off2   = td_var_offset(perc_rand[DDIR_WRITE]),
1718                 .off3   = td_var_offset(perc_rand[DDIR_TRIM]),
1719                 .maxval = 100,
1720                 .help   = "Percentage of seq/random mix that should be random",
1721                 .def    = "100,100,100",
1722                 .interval = 5,
1723                 .inverse = "percentage_sequential",
1724                 .category = FIO_OPT_C_IO,
1725                 .group  = FIO_OPT_G_RANDOM,
1726         },
1727         {
1728                 .name   = "percentage_sequential",
1729                 .lname  = "Percentage Sequential",
1730                 .type   = FIO_OPT_DEPRECATED,
1731                 .category = FIO_OPT_C_IO,
1732                 .group  = FIO_OPT_G_RANDOM,
1733         },
1734         {
1735                 .name   = "allrandrepeat",
1736                 .type   = FIO_OPT_BOOL,
1737                 .off1   = td_var_offset(allrand_repeatable),
1738                 .help   = "Use repeatable random numbers for everything",
1739                 .def    = "0",
1740                 .category = FIO_OPT_C_IO,
1741                 .group  = FIO_OPT_G_RANDOM,
1742         },
1743         {
1744                 .name   = "nrfiles",
1745                 .lname  = "Number of files",
1746                 .alias  = "nr_files",
1747                 .type   = FIO_OPT_INT,
1748                 .off1   = td_var_offset(nr_files),
1749                 .help   = "Split job workload between this number of files",
1750                 .def    = "1",
1751                 .interval = 1,
1752                 .category = FIO_OPT_C_FILE,
1753                 .group  = FIO_OPT_G_INVALID,
1754         },
1755         {
1756                 .name   = "openfiles",
1757                 .lname  = "Number of open files",
1758                 .type   = FIO_OPT_INT,
1759                 .off1   = td_var_offset(open_files),
1760                 .help   = "Number of files to keep open at the same time",
1761                 .category = FIO_OPT_C_FILE,
1762                 .group  = FIO_OPT_G_INVALID,
1763         },
1764         {
1765                 .name   = "file_service_type",
1766                 .lname  = "File service type",
1767                 .type   = FIO_OPT_STR,
1768                 .cb     = str_fst_cb,
1769                 .off1   = td_var_offset(file_service_type),
1770                 .help   = "How to select which file to service next",
1771                 .def    = "roundrobin",
1772                 .category = FIO_OPT_C_FILE,
1773                 .group  = FIO_OPT_G_INVALID,
1774                 .posval = {
1775                           { .ival = "random",
1776                             .oval = FIO_FSERVICE_RANDOM,
1777                             .help = "Choose a file at random",
1778                           },
1779                           { .ival = "roundrobin",
1780                             .oval = FIO_FSERVICE_RR,
1781                             .help = "Round robin select files",
1782                           },
1783                           { .ival = "sequential",
1784                             .oval = FIO_FSERVICE_SEQ,
1785                             .help = "Finish one file before moving to the next",
1786                           },
1787                 },
1788                 .parent = "nrfiles",
1789                 .hide   = 1,
1790         },
1791 #ifdef CONFIG_POSIX_FALLOCATE
1792         {
1793                 .name   = "fallocate",
1794                 .lname  = "Fallocate",
1795                 .type   = FIO_OPT_STR,
1796                 .off1   = td_var_offset(fallocate_mode),
1797                 .help   = "Whether pre-allocation is performed when laying out files",
1798                 .def    = "posix",
1799                 .category = FIO_OPT_C_FILE,
1800                 .group  = FIO_OPT_G_INVALID,
1801                 .posval = {
1802                           { .ival = "none",
1803                             .oval = FIO_FALLOCATE_NONE,
1804                             .help = "Do not pre-allocate space",
1805                           },
1806                           { .ival = "posix",
1807                             .oval = FIO_FALLOCATE_POSIX,
1808                             .help = "Use posix_fallocate()",
1809                           },
1810 #ifdef CONFIG_LINUX_FALLOCATE
1811                           { .ival = "keep",
1812                             .oval = FIO_FALLOCATE_KEEP_SIZE,
1813                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1814                           },
1815 #endif
1816                           /* Compatibility with former boolean values */
1817                           { .ival = "0",
1818                             .oval = FIO_FALLOCATE_NONE,
1819                             .help = "Alias for 'none'",
1820                           },
1821                           { .ival = "1",
1822                             .oval = FIO_FALLOCATE_POSIX,
1823                             .help = "Alias for 'posix'",
1824                           },
1825                 },
1826         },
1827 #endif  /* CONFIG_POSIX_FALLOCATE */
1828         {
1829                 .name   = "fadvise_hint",
1830                 .lname  = "Fadvise hint",
1831                 .type   = FIO_OPT_BOOL,
1832                 .off1   = td_var_offset(fadvise_hint),
1833                 .help   = "Use fadvise() to advise the kernel on IO pattern",
1834                 .def    = "1",
1835                 .category = FIO_OPT_C_FILE,
1836                 .group  = FIO_OPT_G_INVALID,
1837         },
1838 #ifdef FIO_HAVE_STREAMID
1839         {
1840                 .name   = "fadvise_stream",
1841                 .lname  = "Fadvise stream",
1842                 .type   = FIO_OPT_INT,
1843                 .off1   = td_var_offset(fadvise_stream),
1844                 .help   = "Use fadvise() to set stream ID",
1845                 .category = FIO_OPT_C_FILE,
1846                 .group  = FIO_OPT_G_INVALID,
1847         },
1848 #endif
1849         {
1850                 .name   = "fsync",
1851                 .lname  = "Fsync",
1852                 .type   = FIO_OPT_INT,
1853                 .off1   = td_var_offset(fsync_blocks),
1854                 .help   = "Issue fsync for writes every given number of blocks",
1855                 .def    = "0",
1856                 .interval = 1,
1857                 .category = FIO_OPT_C_FILE,
1858                 .group  = FIO_OPT_G_INVALID,
1859         },
1860         {
1861                 .name   = "fdatasync",
1862                 .lname  = "Fdatasync",
1863                 .type   = FIO_OPT_INT,
1864                 .off1   = td_var_offset(fdatasync_blocks),
1865                 .help   = "Issue fdatasync for writes every given number of blocks",
1866                 .def    = "0",
1867                 .interval = 1,
1868                 .category = FIO_OPT_C_FILE,
1869                 .group  = FIO_OPT_G_INVALID,
1870         },
1871         {
1872                 .name   = "write_barrier",
1873                 .lname  = "Write barrier",
1874                 .type   = FIO_OPT_INT,
1875                 .off1   = td_var_offset(barrier_blocks),
1876                 .help   = "Make every Nth write a barrier write",
1877                 .def    = "0",
1878                 .interval = 1,
1879                 .category = FIO_OPT_C_IO,
1880                 .group  = FIO_OPT_G_INVALID,
1881         },
1882 #ifdef CONFIG_SYNC_FILE_RANGE
1883         {
1884                 .name   = "sync_file_range",
1885                 .lname  = "Sync file range",
1886                 .posval = {
1887                           { .ival = "wait_before",
1888                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1889                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1890                             .orval  = 1,
1891                           },
1892                           { .ival = "write",
1893                             .oval = SYNC_FILE_RANGE_WRITE,
1894                             .help = "SYNC_FILE_RANGE_WRITE",
1895                             .orval  = 1,
1896                           },
1897                           {
1898                             .ival = "wait_after",
1899                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1900                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1901                             .orval  = 1,
1902                           },
1903                 },
1904                 .type   = FIO_OPT_STR_MULTI,
1905                 .cb     = str_sfr_cb,
1906                 .off1   = td_var_offset(sync_file_range),
1907                 .help   = "Use sync_file_range()",
1908                 .category = FIO_OPT_C_FILE,
1909                 .group  = FIO_OPT_G_INVALID,
1910         },
1911 #endif
1912         {
1913                 .name   = "direct",
1914                 .lname  = "Direct I/O",
1915                 .type   = FIO_OPT_BOOL,
1916                 .off1   = td_var_offset(odirect),
1917                 .help   = "Use O_DIRECT IO (negates buffered)",
1918                 .def    = "0",
1919                 .inverse = "buffered",
1920                 .category = FIO_OPT_C_IO,
1921                 .group  = FIO_OPT_G_IO_TYPE,
1922         },
1923         {
1924                 .name   = "atomic",
1925                 .lname  = "Atomic I/O",
1926                 .type   = FIO_OPT_BOOL,
1927                 .off1   = td_var_offset(oatomic),
1928                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
1929                 .def    = "0",
1930                 .category = FIO_OPT_C_IO,
1931                 .group  = FIO_OPT_G_IO_TYPE,
1932         },
1933         {
1934                 .name   = "buffered",
1935                 .lname  = "Buffered I/O",
1936                 .type   = FIO_OPT_BOOL,
1937                 .off1   = td_var_offset(odirect),
1938                 .neg    = 1,
1939                 .help   = "Use buffered IO (negates direct)",
1940                 .def    = "1",
1941                 .inverse = "direct",
1942                 .category = FIO_OPT_C_IO,
1943                 .group  = FIO_OPT_G_IO_TYPE,
1944         },
1945         {
1946                 .name   = "overwrite",
1947                 .lname  = "Overwrite",
1948                 .type   = FIO_OPT_BOOL,
1949                 .off1   = td_var_offset(overwrite),
1950                 .help   = "When writing, set whether to overwrite current data",
1951                 .def    = "0",
1952                 .category = FIO_OPT_C_FILE,
1953                 .group  = FIO_OPT_G_INVALID,
1954         },
1955         {
1956                 .name   = "loops",
1957                 .lname  = "Loops",
1958                 .type   = FIO_OPT_INT,
1959                 .off1   = td_var_offset(loops),
1960                 .help   = "Number of times to run the job",
1961                 .def    = "1",
1962                 .interval = 1,
1963                 .category = FIO_OPT_C_GENERAL,
1964                 .group  = FIO_OPT_G_RUNTIME,
1965         },
1966         {
1967                 .name   = "numjobs",
1968                 .lname  = "Number of jobs",
1969                 .type   = FIO_OPT_INT,
1970                 .off1   = td_var_offset(numjobs),
1971                 .help   = "Duplicate this job this many times",
1972                 .def    = "1",
1973                 .interval = 1,
1974                 .category = FIO_OPT_C_GENERAL,
1975                 .group  = FIO_OPT_G_RUNTIME,
1976         },
1977         {
1978                 .name   = "startdelay",
1979                 .lname  = "Start delay",
1980                 .type   = FIO_OPT_STR_VAL_TIME,
1981                 .off1   = td_var_offset(start_delay),
1982                 .off2   = td_var_offset(start_delay_high),
1983                 .help   = "Only start job when this period has passed",
1984                 .def    = "0",
1985                 .is_seconds = 1,
1986                 .is_time = 1,
1987                 .category = FIO_OPT_C_GENERAL,
1988                 .group  = FIO_OPT_G_RUNTIME,
1989         },
1990         {
1991                 .name   = "runtime",
1992                 .lname  = "Runtime",
1993                 .alias  = "timeout",
1994                 .type   = FIO_OPT_STR_VAL_TIME,
1995                 .off1   = td_var_offset(timeout),
1996                 .help   = "Stop workload when this amount of time has passed",
1997                 .def    = "0",
1998                 .is_seconds = 1,
1999                 .is_time = 1,
2000                 .category = FIO_OPT_C_GENERAL,
2001                 .group  = FIO_OPT_G_RUNTIME,
2002         },
2003         {
2004                 .name   = "time_based",
2005                 .lname  = "Time based",
2006                 .type   = FIO_OPT_STR_SET,
2007                 .off1   = td_var_offset(time_based),
2008                 .help   = "Keep running until runtime/timeout is met",
2009                 .category = FIO_OPT_C_GENERAL,
2010                 .group  = FIO_OPT_G_RUNTIME,
2011         },
2012         {
2013                 .name   = "verify_only",
2014                 .lname  = "Verify only",
2015                 .type   = FIO_OPT_STR_SET,
2016                 .off1   = td_var_offset(verify_only),
2017                 .help   = "Verifies previously written data is still valid",
2018                 .category = FIO_OPT_C_GENERAL,
2019                 .group  = FIO_OPT_G_RUNTIME,
2020         },
2021         {
2022                 .name   = "ramp_time",
2023                 .lname  = "Ramp time",
2024                 .type   = FIO_OPT_STR_VAL_TIME,
2025                 .off1   = td_var_offset(ramp_time),
2026                 .help   = "Ramp up time before measuring performance",
2027                 .is_seconds = 1,
2028                 .is_time = 1,
2029                 .category = FIO_OPT_C_GENERAL,
2030                 .group  = FIO_OPT_G_RUNTIME,
2031         },
2032         {
2033                 .name   = "clocksource",
2034                 .lname  = "Clock source",
2035                 .type   = FIO_OPT_STR,
2036                 .cb     = fio_clock_source_cb,
2037                 .off1   = td_var_offset(clocksource),
2038                 .help   = "What type of timing source to use",
2039                 .category = FIO_OPT_C_GENERAL,
2040                 .group  = FIO_OPT_G_CLOCK,
2041                 .posval = {
2042 #ifdef CONFIG_GETTIMEOFDAY
2043                           { .ival = "gettimeofday",
2044                             .oval = CS_GTOD,
2045                             .help = "Use gettimeofday(2) for timing",
2046                           },
2047 #endif
2048 #ifdef CONFIG_CLOCK_GETTIME
2049                           { .ival = "clock_gettime",
2050                             .oval = CS_CGETTIME,
2051                             .help = "Use clock_gettime(2) for timing",
2052                           },
2053 #endif
2054 #ifdef ARCH_HAVE_CPU_CLOCK
2055                           { .ival = "cpu",
2056                             .oval = CS_CPUCLOCK,
2057                             .help = "Use CPU private clock",
2058                           },
2059 #endif
2060                 },
2061         },
2062         {
2063                 .name   = "mem",
2064                 .alias  = "iomem",
2065                 .lname  = "I/O Memory",
2066                 .type   = FIO_OPT_STR,
2067                 .cb     = str_mem_cb,
2068                 .off1   = td_var_offset(mem_type),
2069                 .help   = "Backing type for IO buffers",
2070                 .def    = "malloc",
2071                 .category = FIO_OPT_C_IO,
2072                 .group  = FIO_OPT_G_INVALID,
2073                 .posval = {
2074                           { .ival = "malloc",
2075                             .oval = MEM_MALLOC,
2076                             .help = "Use malloc(3) for IO buffers",
2077                           },
2078 #ifndef CONFIG_NO_SHM
2079                           { .ival = "shm",
2080                             .oval = MEM_SHM,
2081                             .help = "Use shared memory segments for IO buffers",
2082                           },
2083 #ifdef FIO_HAVE_HUGETLB
2084                           { .ival = "shmhuge",
2085                             .oval = MEM_SHMHUGE,
2086                             .help = "Like shm, but use huge pages",
2087                           },
2088 #endif
2089 #endif
2090                           { .ival = "mmap",
2091                             .oval = MEM_MMAP,
2092                             .help = "Use mmap(2) (file or anon) for IO buffers",
2093                           },
2094                           { .ival = "mmapshared",
2095                             .oval = MEM_MMAPSHARED,
2096                             .help = "Like mmap, but use the shared flag",
2097                           },
2098 #ifdef FIO_HAVE_HUGETLB
2099                           { .ival = "mmaphuge",
2100                             .oval = MEM_MMAPHUGE,
2101                             .help = "Like mmap, but use huge pages",
2102                           },
2103 #endif
2104                   },
2105         },
2106         {
2107                 .name   = "iomem_align",
2108                 .alias  = "mem_align",
2109                 .lname  = "I/O memory alignment",
2110                 .type   = FIO_OPT_INT,
2111                 .off1   = td_var_offset(mem_align),
2112                 .minval = 0,
2113                 .help   = "IO memory buffer offset alignment",
2114                 .def    = "0",
2115                 .parent = "iomem",
2116                 .hide   = 1,
2117                 .category = FIO_OPT_C_IO,
2118                 .group  = FIO_OPT_G_INVALID,
2119         },
2120         {
2121                 .name   = "verify",
2122                 .lname  = "Verify",
2123                 .type   = FIO_OPT_STR,
2124                 .off1   = td_var_offset(verify),
2125                 .help   = "Verify data written",
2126                 .def    = "0",
2127                 .category = FIO_OPT_C_IO,
2128                 .group  = FIO_OPT_G_VERIFY,
2129                 .posval = {
2130                           { .ival = "0",
2131                             .oval = VERIFY_NONE,
2132                             .help = "Don't do IO verification",
2133                           },
2134                           { .ival = "md5",
2135                             .oval = VERIFY_MD5,
2136                             .help = "Use md5 checksums for verification",
2137                           },
2138                           { .ival = "crc64",
2139                             .oval = VERIFY_CRC64,
2140                             .help = "Use crc64 checksums for verification",
2141                           },
2142                           { .ival = "crc32",
2143                             .oval = VERIFY_CRC32,
2144                             .help = "Use crc32 checksums for verification",
2145                           },
2146                           { .ival = "crc32c-intel",
2147                             .oval = VERIFY_CRC32C,
2148                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2149                           },
2150                           { .ival = "crc32c",
2151                             .oval = VERIFY_CRC32C,
2152                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2153                           },
2154                           { .ival = "crc16",
2155                             .oval = VERIFY_CRC16,
2156                             .help = "Use crc16 checksums for verification",
2157                           },
2158                           { .ival = "crc7",
2159                             .oval = VERIFY_CRC7,
2160                             .help = "Use crc7 checksums for verification",
2161                           },
2162                           { .ival = "sha1",
2163                             .oval = VERIFY_SHA1,
2164                             .help = "Use sha1 checksums for verification",
2165                           },
2166                           { .ival = "sha256",
2167                             .oval = VERIFY_SHA256,
2168                             .help = "Use sha256 checksums for verification",
2169                           },
2170                           { .ival = "sha512",
2171                             .oval = VERIFY_SHA512,
2172                             .help = "Use sha512 checksums for verification",
2173                           },
2174                           { .ival = "xxhash",
2175                             .oval = VERIFY_XXHASH,
2176                             .help = "Use xxhash checksums for verification",
2177                           },
2178                           /* Meta information was included into verify_header,
2179                            * 'meta' verification is implied by default. */
2180                           { .ival = "meta",
2181                             .oval = VERIFY_HDR_ONLY,
2182                             .help = "Use io information for verification. "
2183                                     "Now is implied by default, thus option is obsolete, "
2184                                     "don't use it",
2185                           },
2186                           { .ival = "pattern",
2187                             .oval = VERIFY_PATTERN_NO_HDR,
2188                             .help = "Verify strict pattern",
2189                           },
2190                           {
2191                             .ival = "null",
2192                             .oval = VERIFY_NULL,
2193                             .help = "Pretend to verify",
2194                           },
2195                 },
2196         },
2197         {
2198                 .name   = "do_verify",
2199                 .lname  = "Perform verify step",
2200                 .type   = FIO_OPT_BOOL,
2201                 .off1   = td_var_offset(do_verify),
2202                 .help   = "Run verification stage after write",
2203                 .def    = "1",
2204                 .parent = "verify",
2205                 .hide   = 1,
2206                 .category = FIO_OPT_C_IO,
2207                 .group  = FIO_OPT_G_VERIFY,
2208         },
2209         {
2210                 .name   = "verifysort",
2211                 .lname  = "Verify sort",
2212                 .type   = FIO_OPT_BOOL,
2213                 .off1   = td_var_offset(verifysort),
2214                 .help   = "Sort written verify blocks for read back",
2215                 .def    = "1",
2216                 .parent = "verify",
2217                 .hide   = 1,
2218                 .category = FIO_OPT_C_IO,
2219                 .group  = FIO_OPT_G_VERIFY,
2220         },
2221         {
2222                 .name   = "verifysort_nr",
2223                 .type   = FIO_OPT_INT,
2224                 .off1   = td_var_offset(verifysort_nr),
2225                 .help   = "Pre-load and sort verify blocks for a read workload",
2226                 .minval = 0,
2227                 .maxval = 131072,
2228                 .def    = "1024",
2229                 .parent = "verify",
2230                 .category = FIO_OPT_C_IO,
2231                 .group  = FIO_OPT_G_VERIFY,
2232         },
2233         {
2234                 .name   = "verify_interval",
2235                 .lname  = "Verify interval",
2236                 .type   = FIO_OPT_INT,
2237                 .off1   = td_var_offset(verify_interval),
2238                 .minval = 2 * sizeof(struct verify_header),
2239                 .help   = "Store verify buffer header every N bytes",
2240                 .parent = "verify",
2241                 .hide   = 1,
2242                 .interval = 2 * sizeof(struct verify_header),
2243                 .category = FIO_OPT_C_IO,
2244                 .group  = FIO_OPT_G_VERIFY,
2245         },
2246         {
2247                 .name   = "verify_offset",
2248                 .lname  = "Verify offset",
2249                 .type   = FIO_OPT_INT,
2250                 .help   = "Offset verify header location by N bytes",
2251                 .off1   = td_var_offset(verify_offset),
2252                 .minval = sizeof(struct verify_header),
2253                 .parent = "verify",
2254                 .hide   = 1,
2255                 .category = FIO_OPT_C_IO,
2256                 .group  = FIO_OPT_G_VERIFY,
2257         },
2258         {
2259                 .name   = "verify_pattern",
2260                 .lname  = "Verify pattern",
2261                 .type   = FIO_OPT_STR,
2262                 .cb     = str_verify_pattern_cb,
2263                 .off1   = td_var_offset(verify_pattern),
2264                 .help   = "Fill pattern for IO buffers",
2265                 .parent = "verify",
2266                 .hide   = 1,
2267                 .category = FIO_OPT_C_IO,
2268                 .group  = FIO_OPT_G_VERIFY,
2269         },
2270         {
2271                 .name   = "verify_fatal",
2272                 .lname  = "Verify fatal",
2273                 .type   = FIO_OPT_BOOL,
2274                 .off1   = td_var_offset(verify_fatal),
2275                 .def    = "0",
2276                 .help   = "Exit on a single verify failure, don't continue",
2277                 .parent = "verify",
2278                 .hide   = 1,
2279                 .category = FIO_OPT_C_IO,
2280                 .group  = FIO_OPT_G_VERIFY,
2281         },
2282         {
2283                 .name   = "verify_dump",
2284                 .lname  = "Verify dump",
2285                 .type   = FIO_OPT_BOOL,
2286                 .off1   = td_var_offset(verify_dump),
2287                 .def    = "0",
2288                 .help   = "Dump contents of good and bad blocks on failure",
2289                 .parent = "verify",
2290                 .hide   = 1,
2291                 .category = FIO_OPT_C_IO,
2292                 .group  = FIO_OPT_G_VERIFY,
2293         },
2294         {
2295                 .name   = "verify_async",
2296                 .lname  = "Verify asynchronously",
2297                 .type   = FIO_OPT_INT,
2298                 .off1   = td_var_offset(verify_async),
2299                 .def    = "0",
2300                 .help   = "Number of async verifier threads to use",
2301                 .parent = "verify",
2302                 .hide   = 1,
2303                 .category = FIO_OPT_C_IO,
2304                 .group  = FIO_OPT_G_VERIFY,
2305         },
2306         {
2307                 .name   = "verify_backlog",
2308                 .lname  = "Verify backlog",
2309                 .type   = FIO_OPT_STR_VAL,
2310                 .off1   = td_var_offset(verify_backlog),
2311                 .help   = "Verify after this number of blocks are written",
2312                 .parent = "verify",
2313                 .hide   = 1,
2314                 .category = FIO_OPT_C_IO,
2315                 .group  = FIO_OPT_G_VERIFY,
2316         },
2317         {
2318                 .name   = "verify_backlog_batch",
2319                 .lname  = "Verify backlog batch",
2320                 .type   = FIO_OPT_INT,
2321                 .off1   = td_var_offset(verify_batch),
2322                 .help   = "Verify this number of IO blocks",
2323                 .parent = "verify",
2324                 .hide   = 1,
2325                 .category = FIO_OPT_C_IO,
2326                 .group  = FIO_OPT_G_VERIFY,
2327         },
2328 #ifdef FIO_HAVE_CPU_AFFINITY
2329         {
2330                 .name   = "verify_async_cpus",
2331                 .lname  = "Async verify CPUs",
2332                 .type   = FIO_OPT_STR,
2333                 .cb     = str_verify_cpus_allowed_cb,
2334                 .off1   = td_var_offset(verify_cpumask),
2335                 .help   = "Set CPUs allowed for async verify threads",
2336                 .parent = "verify_async",
2337                 .hide   = 1,
2338                 .category = FIO_OPT_C_IO,
2339                 .group  = FIO_OPT_G_VERIFY,
2340         },
2341 #endif
2342         {
2343                 .name   = "experimental_verify",
2344                 .off1   = td_var_offset(experimental_verify),
2345                 .type   = FIO_OPT_BOOL,
2346                 .help   = "Enable experimental verification",
2347                 .parent = "verify",
2348                 .category = FIO_OPT_C_IO,
2349                 .group  = FIO_OPT_G_VERIFY,
2350         },
2351         {
2352                 .name   = "verify_state_load",
2353                 .lname  = "Load verify state",
2354                 .off1   = td_var_offset(verify_state),
2355                 .type   = FIO_OPT_BOOL,
2356                 .help   = "Load verify termination state",
2357                 .parent = "verify",
2358                 .category = FIO_OPT_C_IO,
2359                 .group  = FIO_OPT_G_VERIFY,
2360         },
2361         {
2362                 .name   = "verify_state_save",
2363                 .lname  = "Save verify state",
2364                 .off1   = td_var_offset(verify_state_save),
2365                 .type   = FIO_OPT_BOOL,
2366                 .def    = "1",
2367                 .help   = "Save verify state on termination",
2368                 .parent = "verify",
2369                 .category = FIO_OPT_C_IO,
2370                 .group  = FIO_OPT_G_VERIFY,
2371         },
2372 #ifdef FIO_HAVE_TRIM
2373         {
2374                 .name   = "trim_percentage",
2375                 .lname  = "Trim percentage",
2376                 .type   = FIO_OPT_INT,
2377                 .off1   = td_var_offset(trim_percentage),
2378                 .minval = 0,
2379                 .maxval = 100,
2380                 .help   = "Number of verify blocks to discard/trim",
2381                 .parent = "verify",
2382                 .def    = "0",
2383                 .interval = 1,
2384                 .hide   = 1,
2385                 .category = FIO_OPT_C_IO,
2386                 .group  = FIO_OPT_G_TRIM,
2387         },
2388         {
2389                 .name   = "trim_verify_zero",
2390                 .lname  = "Verify trim zero",
2391                 .type   = FIO_OPT_BOOL,
2392                 .help   = "Verify that trim/discarded blocks are returned as zeroes",
2393                 .off1   = td_var_offset(trim_zero),
2394                 .parent = "trim_percentage",
2395                 .hide   = 1,
2396                 .def    = "1",
2397                 .category = FIO_OPT_C_IO,
2398                 .group  = FIO_OPT_G_TRIM,
2399         },
2400         {
2401                 .name   = "trim_backlog",
2402                 .lname  = "Trim backlog",
2403                 .type   = FIO_OPT_STR_VAL,
2404                 .off1   = td_var_offset(trim_backlog),
2405                 .help   = "Trim after this number of blocks are written",
2406                 .parent = "trim_percentage",
2407                 .hide   = 1,
2408                 .interval = 1,
2409                 .category = FIO_OPT_C_IO,
2410                 .group  = FIO_OPT_G_TRIM,
2411         },
2412         {
2413                 .name   = "trim_backlog_batch",
2414                 .lname  = "Trim backlog batch",
2415                 .type   = FIO_OPT_INT,
2416                 .off1   = td_var_offset(trim_batch),
2417                 .help   = "Trim this number of IO blocks",
2418                 .parent = "trim_percentage",
2419                 .hide   = 1,
2420                 .interval = 1,
2421                 .category = FIO_OPT_C_IO,
2422                 .group  = FIO_OPT_G_TRIM,
2423         },
2424 #endif
2425         {
2426                 .name   = "write_iolog",
2427                 .lname  = "Write I/O log",
2428                 .type   = FIO_OPT_STR_STORE,
2429                 .off1   = td_var_offset(write_iolog_file),
2430                 .help   = "Store IO pattern to file",
2431                 .category = FIO_OPT_C_IO,
2432                 .group  = FIO_OPT_G_IOLOG,
2433         },
2434         {
2435                 .name   = "read_iolog",
2436                 .lname  = "Read I/O log",
2437                 .type   = FIO_OPT_STR_STORE,
2438                 .off1   = td_var_offset(read_iolog_file),
2439                 .help   = "Playback IO pattern from file",
2440                 .category = FIO_OPT_C_IO,
2441                 .group  = FIO_OPT_G_IOLOG,
2442         },
2443         {
2444                 .name   = "replay_no_stall",
2445                 .lname  = "Don't stall on replay",
2446                 .type   = FIO_OPT_BOOL,
2447                 .off1   = td_var_offset(no_stall),
2448                 .def    = "0",
2449                 .parent = "read_iolog",
2450                 .hide   = 1,
2451                 .help   = "Playback IO pattern file as fast as possible without stalls",
2452                 .category = FIO_OPT_C_IO,
2453                 .group  = FIO_OPT_G_IOLOG,
2454         },
2455         {
2456                 .name   = "replay_redirect",
2457                 .lname  = "Redirect device for replay",
2458                 .type   = FIO_OPT_STR_STORE,
2459                 .off1   = td_var_offset(replay_redirect),
2460                 .parent = "read_iolog",
2461                 .hide   = 1,
2462                 .help   = "Replay all I/O onto this device, regardless of trace device",
2463                 .category = FIO_OPT_C_IO,
2464                 .group  = FIO_OPT_G_IOLOG,
2465         },
2466         {
2467                 .name   = "replay_scale",
2468                 .lname  = "Replace offset scale factor",
2469                 .type   = FIO_OPT_INT,
2470                 .off1   = td_var_offset(replay_scale),
2471                 .parent = "read_iolog",
2472                 .def    = "1",
2473                 .help   = "Align offsets to this blocksize",
2474                 .category = FIO_OPT_C_IO,
2475                 .group  = FIO_OPT_G_IOLOG,
2476         },
2477         {
2478                 .name   = "replay_align",
2479                 .lname  = "Replace alignment",
2480                 .type   = FIO_OPT_INT,
2481                 .off1   = td_var_offset(replay_align),
2482                 .parent = "read_iolog",
2483                 .help   = "Scale offset down by this factor",
2484                 .category = FIO_OPT_C_IO,
2485                 .group  = FIO_OPT_G_IOLOG,
2486                 .pow2   = 1,
2487         },
2488         {
2489                 .name   = "exec_prerun",
2490                 .lname  = "Pre-execute runnable",
2491                 .type   = FIO_OPT_STR_STORE,
2492                 .off1   = td_var_offset(exec_prerun),
2493                 .help   = "Execute this file prior to running job",
2494                 .category = FIO_OPT_C_GENERAL,
2495                 .group  = FIO_OPT_G_INVALID,
2496         },
2497         {
2498                 .name   = "exec_postrun",
2499                 .lname  = "Post-execute runnable",
2500                 .type   = FIO_OPT_STR_STORE,
2501                 .off1   = td_var_offset(exec_postrun),
2502                 .help   = "Execute this file after running job",
2503                 .category = FIO_OPT_C_GENERAL,
2504                 .group  = FIO_OPT_G_INVALID,
2505         },
2506 #ifdef FIO_HAVE_IOSCHED_SWITCH
2507         {
2508                 .name   = "ioscheduler",
2509                 .lname  = "I/O scheduler",
2510                 .type   = FIO_OPT_STR_STORE,
2511                 .off1   = td_var_offset(ioscheduler),
2512                 .help   = "Use this IO scheduler on the backing device",
2513                 .category = FIO_OPT_C_FILE,
2514                 .group  = FIO_OPT_G_INVALID,
2515         },
2516 #endif
2517         {
2518                 .name   = "zonesize",
2519                 .lname  = "Zone size",
2520                 .type   = FIO_OPT_STR_VAL,
2521                 .off1   = td_var_offset(zone_size),
2522                 .help   = "Amount of data to read per zone",
2523                 .def    = "0",
2524                 .interval = 1024 * 1024,
2525                 .category = FIO_OPT_C_IO,
2526                 .group  = FIO_OPT_G_ZONE,
2527         },
2528         {
2529                 .name   = "zonerange",
2530                 .lname  = "Zone range",
2531                 .type   = FIO_OPT_STR_VAL,
2532                 .off1   = td_var_offset(zone_range),
2533                 .help   = "Give size of an IO zone",
2534                 .def    = "0",
2535                 .interval = 1024 * 1024,
2536                 .category = FIO_OPT_C_IO,
2537                 .group  = FIO_OPT_G_ZONE,
2538         },
2539         {
2540                 .name   = "zoneskip",
2541                 .lname  = "Zone skip",
2542                 .type   = FIO_OPT_STR_VAL,
2543                 .off1   = td_var_offset(zone_skip),
2544                 .help   = "Space between IO zones",
2545                 .def    = "0",
2546                 .interval = 1024 * 1024,
2547                 .category = FIO_OPT_C_IO,
2548                 .group  = FIO_OPT_G_ZONE,
2549         },
2550         {
2551                 .name   = "lockmem",
2552                 .lname  = "Lock memory",
2553                 .type   = FIO_OPT_STR_VAL,
2554                 .off1   = td_var_offset(lockmem),
2555                 .help   = "Lock down this amount of memory (per worker)",
2556                 .def    = "0",
2557                 .interval = 1024 * 1024,
2558                 .category = FIO_OPT_C_GENERAL,
2559                 .group  = FIO_OPT_G_INVALID,
2560         },
2561         {
2562                 .name   = "rwmixread",
2563                 .lname  = "Read/write mix read",
2564                 .type   = FIO_OPT_INT,
2565                 .cb     = str_rwmix_read_cb,
2566                 .off1   = td_var_offset(rwmix[DDIR_READ]),
2567                 .maxval = 100,
2568                 .help   = "Percentage of mixed workload that is reads",
2569                 .def    = "50",
2570                 .interval = 5,
2571                 .inverse = "rwmixwrite",
2572                 .category = FIO_OPT_C_IO,
2573                 .group  = FIO_OPT_G_RWMIX,
2574         },
2575         {
2576                 .name   = "rwmixwrite",
2577                 .lname  = "Read/write mix write",
2578                 .type   = FIO_OPT_INT,
2579                 .cb     = str_rwmix_write_cb,
2580                 .off1   = td_var_offset(rwmix[DDIR_WRITE]),
2581                 .maxval = 100,
2582                 .help   = "Percentage of mixed workload that is writes",
2583                 .def    = "50",
2584                 .interval = 5,
2585                 .inverse = "rwmixread",
2586                 .category = FIO_OPT_C_IO,
2587                 .group  = FIO_OPT_G_RWMIX,
2588         },
2589         {
2590                 .name   = "rwmixcycle",
2591                 .lname  = "Read/write mix cycle",
2592                 .type   = FIO_OPT_DEPRECATED,
2593                 .category = FIO_OPT_C_IO,
2594                 .group  = FIO_OPT_G_RWMIX,
2595         },
2596         {
2597                 .name   = "nice",
2598                 .lname  = "Nice",
2599                 .type   = FIO_OPT_INT,
2600                 .off1   = td_var_offset(nice),
2601                 .help   = "Set job CPU nice value",
2602                 .minval = -19,
2603                 .maxval = 20,
2604                 .def    = "0",
2605                 .interval = 1,
2606                 .category = FIO_OPT_C_GENERAL,
2607                 .group  = FIO_OPT_G_CRED,
2608         },
2609 #ifdef FIO_HAVE_IOPRIO
2610         {
2611                 .name   = "prio",
2612                 .lname  = "I/O nice priority",
2613                 .type   = FIO_OPT_INT,
2614                 .off1   = td_var_offset(ioprio),
2615                 .help   = "Set job IO priority value",
2616                 .minval = 0,
2617                 .maxval = 7,
2618                 .interval = 1,
2619                 .category = FIO_OPT_C_GENERAL,
2620                 .group  = FIO_OPT_G_CRED,
2621         },
2622         {
2623                 .name   = "prioclass",
2624                 .lname  = "I/O nice priority class",
2625                 .type   = FIO_OPT_INT,
2626                 .off1   = td_var_offset(ioprio_class),
2627                 .help   = "Set job IO priority class",
2628                 .minval = 0,
2629                 .maxval = 3,
2630                 .interval = 1,
2631                 .category = FIO_OPT_C_GENERAL,
2632                 .group  = FIO_OPT_G_CRED,
2633         },
2634 #endif
2635         {
2636                 .name   = "thinktime",
2637                 .lname  = "Thinktime",
2638                 .type   = FIO_OPT_INT,
2639                 .off1   = td_var_offset(thinktime),
2640                 .help   = "Idle time between IO buffers (usec)",
2641                 .def    = "0",
2642                 .is_time = 1,
2643                 .category = FIO_OPT_C_IO,
2644                 .group  = FIO_OPT_G_THINKTIME,
2645         },
2646         {
2647                 .name   = "thinktime_spin",
2648                 .lname  = "Thinktime spin",
2649                 .type   = FIO_OPT_INT,
2650                 .off1   = td_var_offset(thinktime_spin),
2651                 .help   = "Start think time by spinning this amount (usec)",
2652                 .def    = "0",
2653                 .is_time = 1,
2654                 .parent = "thinktime",
2655                 .hide   = 1,
2656                 .category = FIO_OPT_C_IO,
2657                 .group  = FIO_OPT_G_THINKTIME,
2658         },
2659         {
2660                 .name   = "thinktime_blocks",
2661                 .lname  = "Thinktime blocks",
2662                 .type   = FIO_OPT_INT,
2663                 .off1   = td_var_offset(thinktime_blocks),
2664                 .help   = "IO buffer period between 'thinktime'",
2665                 .def    = "1",
2666                 .parent = "thinktime",
2667                 .hide   = 1,
2668                 .category = FIO_OPT_C_IO,
2669                 .group  = FIO_OPT_G_THINKTIME,
2670         },
2671         {
2672                 .name   = "rate",
2673                 .lname  = "I/O rate",
2674                 .type   = FIO_OPT_INT,
2675                 .off1   = td_var_offset(rate[DDIR_READ]),
2676                 .off2   = td_var_offset(rate[DDIR_WRITE]),
2677                 .off3   = td_var_offset(rate[DDIR_TRIM]),
2678                 .help   = "Set bandwidth rate",
2679                 .category = FIO_OPT_C_IO,
2680                 .group  = FIO_OPT_G_RATE,
2681         },
2682         {
2683                 .name   = "rate_min",
2684                 .alias  = "ratemin",
2685                 .lname  = "I/O min rate",
2686                 .type   = FIO_OPT_INT,
2687                 .off1   = td_var_offset(ratemin[DDIR_READ]),
2688                 .off2   = td_var_offset(ratemin[DDIR_WRITE]),
2689                 .off3   = td_var_offset(ratemin[DDIR_TRIM]),
2690                 .help   = "Job must meet this rate or it will be shutdown",
2691                 .parent = "rate",
2692                 .hide   = 1,
2693                 .category = FIO_OPT_C_IO,
2694                 .group  = FIO_OPT_G_RATE,
2695         },
2696         {
2697                 .name   = "rate_iops",
2698                 .lname  = "I/O rate IOPS",
2699                 .type   = FIO_OPT_INT,
2700                 .off1   = td_var_offset(rate_iops[DDIR_READ]),
2701                 .off2   = td_var_offset(rate_iops[DDIR_WRITE]),
2702                 .off3   = td_var_offset(rate_iops[DDIR_TRIM]),
2703                 .help   = "Limit IO used to this number of IO operations/sec",
2704                 .hide   = 1,
2705                 .category = FIO_OPT_C_IO,
2706                 .group  = FIO_OPT_G_RATE,
2707         },
2708         {
2709                 .name   = "rate_iops_min",
2710                 .lname  = "I/O min rate IOPS",
2711                 .type   = FIO_OPT_INT,
2712                 .off1   = td_var_offset(rate_iops_min[DDIR_READ]),
2713                 .off2   = td_var_offset(rate_iops_min[DDIR_WRITE]),
2714                 .off3   = td_var_offset(rate_iops_min[DDIR_TRIM]),
2715                 .help   = "Job must meet this rate or it will be shut down",
2716                 .parent = "rate_iops",
2717                 .hide   = 1,
2718                 .category = FIO_OPT_C_IO,
2719                 .group  = FIO_OPT_G_RATE,
2720         },
2721         {
2722                 .name   = "rate_process",
2723                 .lname  = "Rate Process",
2724                 .type   = FIO_OPT_STR,
2725                 .off1   = td_var_offset(rate_process),
2726                 .help   = "What process controls how rated IO is managed",
2727                 .def    = "linear",
2728                 .category = FIO_OPT_C_IO,
2729                 .group  = FIO_OPT_G_RATE,
2730                 .posval = {
2731                           { .ival = "linear",
2732                             .oval = RATE_PROCESS_LINEAR,
2733                             .help = "Linear rate of IO",
2734                           },
2735                           {
2736                             .ival = "poisson",
2737                             .oval = RATE_PROCESS_POISSON,
2738                             .help = "Rate follows Poisson process",
2739                           },
2740                 },
2741                 .parent = "rate",
2742         },
2743         {
2744                 .name   = "rate_cycle",
2745                 .alias  = "ratecycle",
2746                 .lname  = "I/O rate cycle",
2747                 .type   = FIO_OPT_INT,
2748                 .off1   = td_var_offset(ratecycle),
2749                 .help   = "Window average for rate limits (msec)",
2750                 .def    = "1000",
2751                 .parent = "rate",
2752                 .hide   = 1,
2753                 .category = FIO_OPT_C_IO,
2754                 .group  = FIO_OPT_G_RATE,
2755         },
2756         {
2757                 .name   = "max_latency",
2758                 .type   = FIO_OPT_INT,
2759                 .off1   = td_var_offset(max_latency),
2760                 .help   = "Maximum tolerated IO latency (usec)",
2761                 .is_time = 1,
2762                 .category = FIO_OPT_C_IO,
2763                 .group = FIO_OPT_G_LATPROF,
2764         },
2765         {
2766                 .name   = "latency_target",
2767                 .lname  = "Latency Target (usec)",
2768                 .type   = FIO_OPT_STR_VAL_TIME,
2769                 .off1   = td_var_offset(latency_target),
2770                 .help   = "Ramp to max queue depth supporting this latency",
2771                 .is_time = 1,
2772                 .category = FIO_OPT_C_IO,
2773                 .group  = FIO_OPT_G_LATPROF,
2774         },
2775         {
2776                 .name   = "latency_window",
2777                 .lname  = "Latency Window (usec)",
2778                 .type   = FIO_OPT_STR_VAL_TIME,
2779                 .off1   = td_var_offset(latency_window),
2780                 .help   = "Time to sustain latency_target",
2781                 .is_time = 1,
2782                 .category = FIO_OPT_C_IO,
2783                 .group  = FIO_OPT_G_LATPROF,
2784         },
2785         {
2786                 .name   = "latency_percentile",
2787                 .lname  = "Latency Percentile",
2788                 .type   = FIO_OPT_FLOAT_LIST,
2789                 .off1   = td_var_offset(latency_percentile),
2790                 .help   = "Percentile of IOs must be below latency_target",
2791                 .def    = "100",
2792                 .maxlen = 1,
2793                 .minfp  = 0.0,
2794                 .maxfp  = 100.0,
2795                 .category = FIO_OPT_C_IO,
2796                 .group  = FIO_OPT_G_LATPROF,
2797         },
2798         {
2799                 .name   = "invalidate",
2800                 .lname  = "Cache invalidate",
2801                 .type   = FIO_OPT_BOOL,
2802                 .off1   = td_var_offset(invalidate_cache),
2803                 .help   = "Invalidate buffer/page cache prior to running job",
2804                 .def    = "1",
2805                 .category = FIO_OPT_C_IO,
2806                 .group  = FIO_OPT_G_IO_TYPE,
2807         },
2808         {
2809                 .name   = "sync",
2810                 .lname  = "Synchronous I/O",
2811                 .type   = FIO_OPT_BOOL,
2812                 .off1   = td_var_offset(sync_io),
2813                 .help   = "Use O_SYNC for buffered writes",
2814                 .def    = "0",
2815                 .parent = "buffered",
2816                 .hide   = 1,
2817                 .category = FIO_OPT_C_IO,
2818                 .group  = FIO_OPT_G_IO_TYPE,
2819         },
2820         {
2821                 .name   = "create_serialize",
2822                 .lname  = "Create serialize",
2823                 .type   = FIO_OPT_BOOL,
2824                 .off1   = td_var_offset(create_serialize),
2825                 .help   = "Serialize creating of job files",
2826                 .def    = "1",
2827                 .category = FIO_OPT_C_FILE,
2828                 .group  = FIO_OPT_G_INVALID,
2829         },
2830         {
2831                 .name   = "create_fsync",
2832                 .lname  = "Create fsync",
2833                 .type   = FIO_OPT_BOOL,
2834                 .off1   = td_var_offset(create_fsync),
2835                 .help   = "fsync file after creation",
2836                 .def    = "1",
2837                 .category = FIO_OPT_C_FILE,
2838                 .group  = FIO_OPT_G_INVALID,
2839         },
2840         {
2841                 .name   = "create_on_open",
2842                 .lname  = "Create on open",
2843                 .type   = FIO_OPT_BOOL,
2844                 .off1   = td_var_offset(create_on_open),
2845                 .help   = "Create files when they are opened for IO",
2846                 .def    = "0",
2847                 .category = FIO_OPT_C_FILE,
2848                 .group  = FIO_OPT_G_INVALID,
2849         },
2850         {
2851                 .name   = "create_only",
2852                 .type   = FIO_OPT_BOOL,
2853                 .off1   = td_var_offset(create_only),
2854                 .help   = "Only perform file creation phase",
2855                 .category = FIO_OPT_C_FILE,
2856                 .def    = "0",
2857         },
2858         {
2859                 .name   = "allow_file_create",
2860                 .lname  = "Allow file create",
2861                 .type   = FIO_OPT_BOOL,
2862                 .off1   = td_var_offset(allow_create),
2863                 .help   = "Permit fio to create files, if they don't exist",
2864                 .def    = "1",
2865                 .category = FIO_OPT_C_FILE,
2866                 .group  = FIO_OPT_G_FILENAME,
2867         },
2868         {
2869                 .name   = "allow_mounted_write",
2870                 .lname  = "Allow mounted write",
2871                 .type   = FIO_OPT_BOOL,
2872                 .off1   = td_var_offset(allow_mounted_write),
2873                 .help   = "Allow writes to a mounted partition",
2874                 .def    = "0",
2875                 .category = FIO_OPT_C_FILE,
2876                 .group  = FIO_OPT_G_FILENAME,
2877         },
2878         {
2879                 .name   = "pre_read",
2880                 .lname  = "Pre-read files",
2881                 .type   = FIO_OPT_BOOL,
2882                 .off1   = td_var_offset(pre_read),
2883                 .help   = "Pre-read files before starting official testing",
2884                 .def    = "0",
2885                 .category = FIO_OPT_C_FILE,
2886                 .group  = FIO_OPT_G_INVALID,
2887         },
2888 #ifdef FIO_HAVE_CPU_AFFINITY
2889         {
2890                 .name   = "cpumask",
2891                 .lname  = "CPU mask",
2892                 .type   = FIO_OPT_INT,
2893                 .cb     = str_cpumask_cb,
2894                 .off1   = td_var_offset(cpumask),
2895                 .help   = "CPU affinity mask",
2896                 .category = FIO_OPT_C_GENERAL,
2897                 .group  = FIO_OPT_G_CRED,
2898         },
2899         {
2900                 .name   = "cpus_allowed",
2901                 .lname  = "CPUs allowed",
2902                 .type   = FIO_OPT_STR,
2903                 .cb     = str_cpus_allowed_cb,
2904                 .off1   = td_var_offset(cpumask),
2905                 .help   = "Set CPUs allowed",
2906                 .category = FIO_OPT_C_GENERAL,
2907                 .group  = FIO_OPT_G_CRED,
2908         },
2909         {
2910                 .name   = "cpus_allowed_policy",
2911                 .lname  = "CPUs allowed distribution policy",
2912                 .type   = FIO_OPT_STR,
2913                 .off1   = td_var_offset(cpus_allowed_policy),
2914                 .help   = "Distribution policy for cpus_allowed",
2915                 .parent = "cpus_allowed",
2916                 .prio   = 1,
2917                 .posval = {
2918                           { .ival = "shared",
2919                             .oval = FIO_CPUS_SHARED,
2920                             .help = "Mask shared between threads",
2921                           },
2922                           { .ival = "split",
2923                             .oval = FIO_CPUS_SPLIT,
2924                             .help = "Mask split between threads",
2925                           },
2926                 },
2927                 .category = FIO_OPT_C_GENERAL,
2928                 .group  = FIO_OPT_G_CRED,
2929         },
2930 #endif
2931 #ifdef CONFIG_LIBNUMA
2932         {
2933                 .name   = "numa_cpu_nodes",
2934                 .type   = FIO_OPT_STR,
2935                 .cb     = str_numa_cpunodes_cb,
2936                 .off1   = td_var_offset(numa_cpunodes),
2937                 .help   = "NUMA CPU nodes bind",
2938                 .category = FIO_OPT_C_GENERAL,
2939                 .group  = FIO_OPT_G_INVALID,
2940         },
2941         {
2942                 .name   = "numa_mem_policy",
2943                 .type   = FIO_OPT_STR,
2944                 .cb     = str_numa_mpol_cb,
2945                 .off1   = td_var_offset(numa_memnodes),
2946                 .help   = "NUMA memory policy setup",
2947                 .category = FIO_OPT_C_GENERAL,
2948                 .group  = FIO_OPT_G_INVALID,
2949         },
2950 #endif
2951         {
2952                 .name   = "end_fsync",
2953                 .lname  = "End fsync",
2954                 .type   = FIO_OPT_BOOL,
2955                 .off1   = td_var_offset(end_fsync),
2956                 .help   = "Include fsync at the end of job",
2957                 .def    = "0",
2958                 .category = FIO_OPT_C_FILE,
2959                 .group  = FIO_OPT_G_INVALID,
2960         },
2961         {
2962                 .name   = "fsync_on_close",
2963                 .lname  = "Fsync on close",
2964                 .type   = FIO_OPT_BOOL,
2965                 .off1   = td_var_offset(fsync_on_close),
2966                 .help   = "fsync files on close",
2967                 .def    = "0",
2968                 .category = FIO_OPT_C_FILE,
2969                 .group  = FIO_OPT_G_INVALID,
2970         },
2971         {
2972                 .name   = "unlink",
2973                 .lname  = "Unlink file",
2974                 .type   = FIO_OPT_BOOL,
2975                 .off1   = td_var_offset(unlink),
2976                 .help   = "Unlink created files after job has completed",
2977                 .def    = "0",
2978                 .category = FIO_OPT_C_FILE,
2979                 .group  = FIO_OPT_G_INVALID,
2980         },
2981         {
2982                 .name   = "exitall",
2983                 .lname  = "Exit-all on terminate",
2984                 .type   = FIO_OPT_STR_SET,
2985                 .cb     = str_exitall_cb,
2986                 .help   = "Terminate all jobs when one exits",
2987                 .category = FIO_OPT_C_GENERAL,
2988                 .group  = FIO_OPT_G_PROCESS,
2989         },
2990         {
2991                 .name   = "exitall_on_error",
2992                 .lname  = "Exit-all on terminate in error",
2993                 .type   = FIO_OPT_BOOL,
2994                 .off1   = td_var_offset(unlink),
2995                 .help   = "Terminate all jobs when one exits in error",
2996                 .category = FIO_OPT_C_GENERAL,
2997                 .group  = FIO_OPT_G_PROCESS,
2998         },
2999         {
3000                 .name   = "stonewall",
3001                 .lname  = "Wait for previous",
3002                 .alias  = "wait_for_previous",
3003                 .type   = FIO_OPT_STR_SET,
3004                 .off1   = td_var_offset(stonewall),
3005                 .help   = "Insert a hard barrier between this job and previous",
3006                 .category = FIO_OPT_C_GENERAL,
3007                 .group  = FIO_OPT_G_PROCESS,
3008         },
3009         {
3010                 .name   = "new_group",
3011                 .lname  = "New group",
3012                 .type   = FIO_OPT_STR_SET,
3013                 .off1   = td_var_offset(new_group),
3014                 .help   = "Mark the start of a new group (for reporting)",
3015                 .category = FIO_OPT_C_GENERAL,
3016                 .group  = FIO_OPT_G_PROCESS,
3017         },
3018         {
3019                 .name   = "thread",
3020                 .lname  = "Thread",
3021                 .type   = FIO_OPT_STR_SET,
3022                 .off1   = td_var_offset(use_thread),
3023                 .help   = "Use threads instead of processes",
3024 #ifdef CONFIG_NO_SHM
3025                 .def    = "1",
3026                 .no_warn_def = 1,
3027 #endif
3028                 .category = FIO_OPT_C_GENERAL,
3029                 .group  = FIO_OPT_G_PROCESS,
3030         },
3031         {
3032                 .name   = "per_job_logs",
3033                 .type   = FIO_OPT_BOOL,
3034                 .off1   = td_var_offset(per_job_logs),
3035                 .help   = "Include job number in generated log files or not",
3036                 .def    = "1",
3037                 .category = FIO_OPT_C_LOG,
3038                 .group  = FIO_OPT_G_INVALID,
3039         },
3040         {
3041                 .name   = "write_bw_log",
3042                 .lname  = "Write bandwidth log",
3043                 .type   = FIO_OPT_STR_STORE,
3044                 .off1   = td_var_offset(bw_log_file),
3045                 .help   = "Write log of bandwidth during run",
3046                 .category = FIO_OPT_C_LOG,
3047                 .group  = FIO_OPT_G_INVALID,
3048         },
3049         {
3050                 .name   = "write_lat_log",
3051                 .lname  = "Write latency log",
3052                 .type   = FIO_OPT_STR_STORE,
3053                 .off1   = td_var_offset(lat_log_file),
3054                 .help   = "Write log of latency during run",
3055                 .category = FIO_OPT_C_LOG,
3056                 .group  = FIO_OPT_G_INVALID,
3057         },
3058         {
3059                 .name   = "write_iops_log",
3060                 .lname  = "Write IOPS log",
3061                 .type   = FIO_OPT_STR_STORE,
3062                 .off1   = td_var_offset(iops_log_file),
3063                 .help   = "Write log of IOPS during run",
3064                 .category = FIO_OPT_C_LOG,
3065                 .group  = FIO_OPT_G_INVALID,
3066         },
3067         {
3068                 .name   = "log_avg_msec",
3069                 .lname  = "Log averaging (msec)",
3070                 .type   = FIO_OPT_INT,
3071                 .off1   = td_var_offset(log_avg_msec),
3072                 .help   = "Average bw/iops/lat logs over this period of time",
3073                 .def    = "0",
3074                 .category = FIO_OPT_C_LOG,
3075                 .group  = FIO_OPT_G_INVALID,
3076         },
3077         {
3078                 .name   = "log_offset",
3079                 .lname  = "Log offset of IO",
3080                 .type   = FIO_OPT_BOOL,
3081                 .off1   = td_var_offset(log_offset),
3082                 .help   = "Include offset of IO for each log entry",
3083                 .def    = "0",
3084                 .category = FIO_OPT_C_LOG,
3085                 .group  = FIO_OPT_G_INVALID,
3086         },
3087 #ifdef CONFIG_ZLIB
3088         {
3089                 .name   = "log_compression",
3090                 .lname  = "Log compression",
3091                 .type   = FIO_OPT_INT,
3092                 .off1   = td_var_offset(log_gz),
3093                 .help   = "Log in compressed chunks of this size",
3094                 .minval = 1024ULL,
3095                 .maxval = 512 * 1024 * 1024ULL,
3096                 .category = FIO_OPT_C_LOG,
3097                 .group  = FIO_OPT_G_INVALID,
3098         },
3099 #ifdef FIO_HAVE_CPU_AFFINITY
3100         {
3101                 .name   = "log_compression_cpus",
3102                 .lname  = "Log Compression CPUs",
3103                 .type   = FIO_OPT_STR,
3104                 .cb     = str_log_cpus_allowed_cb,
3105                 .off1   = td_var_offset(log_gz_cpumask),
3106                 .parent = "log_compression",
3107                 .help   = "Limit log compression to these CPUs",
3108                 .category = FIO_OPT_C_LOG,
3109                 .group  = FIO_OPT_G_INVALID,
3110         },
3111 #endif
3112         {
3113                 .name   = "log_store_compressed",
3114                 .lname  = "Log store compressed",
3115                 .type   = FIO_OPT_BOOL,
3116                 .off1   = td_var_offset(log_gz_store),
3117                 .help   = "Store logs in a compressed format",
3118                 .category = FIO_OPT_C_LOG,
3119                 .group  = FIO_OPT_G_INVALID,
3120         },
3121 #endif
3122         {
3123                 .name   = "block_error_percentiles",
3124                 .lname  = "Block error percentiles",
3125                 .type   = FIO_OPT_BOOL,
3126                 .off1   = td_var_offset(block_error_hist),
3127                 .help   = "Record trim block errors and make a histogram",
3128                 .def    = "0",
3129                 .category = FIO_OPT_C_LOG,
3130                 .group  = FIO_OPT_G_INVALID,
3131         },
3132         {
3133                 .name   = "bwavgtime",
3134                 .lname  = "Bandwidth average time",
3135                 .type   = FIO_OPT_INT,
3136                 .off1   = td_var_offset(bw_avg_time),
3137                 .help   = "Time window over which to calculate bandwidth"
3138                           " (msec)",
3139                 .def    = "500",
3140                 .parent = "write_bw_log",
3141                 .hide   = 1,
3142                 .interval = 100,
3143                 .category = FIO_OPT_C_LOG,
3144                 .group  = FIO_OPT_G_INVALID,
3145         },
3146         {
3147                 .name   = "iopsavgtime",
3148                 .lname  = "IOPS average time",
3149                 .type   = FIO_OPT_INT,
3150                 .off1   = td_var_offset(iops_avg_time),
3151                 .help   = "Time window over which to calculate IOPS (msec)",
3152                 .def    = "500",
3153                 .parent = "write_iops_log",
3154                 .hide   = 1,
3155                 .interval = 100,
3156                 .category = FIO_OPT_C_LOG,
3157                 .group  = FIO_OPT_G_INVALID,
3158         },
3159         {
3160                 .name   = "group_reporting",
3161                 .lname  = "Group reporting",
3162                 .type   = FIO_OPT_STR_SET,
3163                 .off1   = td_var_offset(group_reporting),
3164                 .help   = "Do reporting on a per-group basis",
3165                 .category = FIO_OPT_C_STAT,
3166                 .group  = FIO_OPT_G_INVALID,
3167         },
3168         {
3169                 .name   = "zero_buffers",
3170                 .lname  = "Zero I/O buffers",
3171                 .type   = FIO_OPT_STR_SET,
3172                 .off1   = td_var_offset(zero_buffers),
3173                 .help   = "Init IO buffers to all zeroes",
3174                 .category = FIO_OPT_C_IO,
3175                 .group  = FIO_OPT_G_IO_BUF,
3176         },
3177         {
3178                 .name   = "refill_buffers",
3179                 .lname  = "Refill I/O buffers",
3180                 .type   = FIO_OPT_STR_SET,
3181                 .off1   = td_var_offset(refill_buffers),
3182                 .help   = "Refill IO buffers on every IO submit",
3183                 .category = FIO_OPT_C_IO,
3184                 .group  = FIO_OPT_G_IO_BUF,
3185         },
3186         {
3187                 .name   = "scramble_buffers",
3188                 .lname  = "Scramble I/O buffers",
3189                 .type   = FIO_OPT_BOOL,
3190                 .off1   = td_var_offset(scramble_buffers),
3191                 .help   = "Slightly scramble buffers on every IO submit",
3192                 .def    = "1",
3193                 .category = FIO_OPT_C_IO,
3194                 .group  = FIO_OPT_G_IO_BUF,
3195         },
3196         {
3197                 .name   = "buffer_pattern",
3198                 .lname  = "Buffer pattern",
3199                 .type   = FIO_OPT_STR,
3200                 .cb     = str_buffer_pattern_cb,
3201                 .off1   = td_var_offset(buffer_pattern),
3202                 .help   = "Fill pattern for IO buffers",
3203                 .category = FIO_OPT_C_IO,
3204                 .group  = FIO_OPT_G_IO_BUF,
3205         },
3206         {
3207                 .name   = "buffer_compress_percentage",
3208                 .lname  = "Buffer compression percentage",
3209                 .type   = FIO_OPT_INT,
3210                 .cb     = str_buffer_compress_cb,
3211                 .off1   = td_var_offset(compress_percentage),
3212                 .maxval = 100,
3213                 .minval = 0,
3214                 .help   = "How compressible the buffer is (approximately)",
3215                 .interval = 5,
3216                 .category = FIO_OPT_C_IO,
3217                 .group  = FIO_OPT_G_IO_BUF,
3218         },
3219         {
3220                 .name   = "buffer_compress_chunk",
3221                 .lname  = "Buffer compression chunk size",
3222                 .type   = FIO_OPT_INT,
3223                 .off1   = td_var_offset(compress_chunk),
3224                 .parent = "buffer_compress_percentage",
3225                 .hide   = 1,
3226                 .help   = "Size of compressible region in buffer",
3227                 .interval = 256,
3228                 .category = FIO_OPT_C_IO,
3229                 .group  = FIO_OPT_G_IO_BUF,
3230         },
3231         {
3232                 .name   = "dedupe_percentage",
3233                 .lname  = "Dedupe percentage",
3234                 .type   = FIO_OPT_INT,
3235                 .cb     = str_dedupe_cb,
3236                 .off1   = td_var_offset(dedupe_percentage),
3237                 .maxval = 100,
3238                 .minval = 0,
3239                 .help   = "Percentage of buffers that are dedupable",
3240                 .interval = 1,
3241                 .category = FIO_OPT_C_IO,
3242                 .group  = FIO_OPT_G_IO_BUF,
3243         },
3244         {
3245                 .name   = "clat_percentiles",
3246                 .lname  = "Completion latency percentiles",
3247                 .type   = FIO_OPT_BOOL,
3248                 .off1   = td_var_offset(clat_percentiles),
3249                 .help   = "Enable the reporting of completion latency percentiles",
3250                 .def    = "1",
3251                 .category = FIO_OPT_C_STAT,
3252                 .group  = FIO_OPT_G_INVALID,
3253         },
3254         {
3255                 .name   = "percentile_list",
3256                 .lname  = "Percentile list",
3257                 .type   = FIO_OPT_FLOAT_LIST,
3258                 .off1   = td_var_offset(percentile_list),
3259                 .off2   = td_var_offset(percentile_precision),
3260                 .help   = "Specify a custom list of percentiles to report for "
3261                           "completion latency and block errors",
3262                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3263                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3264                 .minfp  = 0.0,
3265                 .maxfp  = 100.0,
3266                 .category = FIO_OPT_C_STAT,
3267                 .group  = FIO_OPT_G_INVALID,
3268         },
3269
3270 #ifdef FIO_HAVE_DISK_UTIL
3271         {
3272                 .name   = "disk_util",
3273                 .lname  = "Disk utilization",
3274                 .type   = FIO_OPT_BOOL,
3275                 .off1   = td_var_offset(do_disk_util),
3276                 .help   = "Log disk utilization statistics",
3277                 .def    = "1",
3278                 .category = FIO_OPT_C_STAT,
3279                 .group  = FIO_OPT_G_INVALID,
3280         },
3281 #endif
3282         {
3283                 .name   = "gtod_reduce",
3284                 .lname  = "Reduce gettimeofday() calls",
3285                 .type   = FIO_OPT_BOOL,
3286                 .help   = "Greatly reduce number of gettimeofday() calls",
3287                 .cb     = str_gtod_reduce_cb,
3288                 .def    = "0",
3289                 .hide_on_set = 1,
3290                 .category = FIO_OPT_C_STAT,
3291                 .group  = FIO_OPT_G_INVALID,
3292         },
3293         {
3294                 .name   = "disable_lat",
3295                 .lname  = "Disable all latency stats",
3296                 .type   = FIO_OPT_BOOL,
3297                 .off1   = td_var_offset(disable_lat),
3298                 .help   = "Disable latency numbers",
3299                 .parent = "gtod_reduce",
3300                 .hide   = 1,
3301                 .def    = "0",
3302                 .category = FIO_OPT_C_STAT,
3303                 .group  = FIO_OPT_G_INVALID,
3304         },
3305         {
3306                 .name   = "disable_clat",
3307                 .lname  = "Disable completion latency stats",
3308                 .type   = FIO_OPT_BOOL,
3309                 .off1   = td_var_offset(disable_clat),
3310                 .help   = "Disable completion latency numbers",
3311                 .parent = "gtod_reduce",
3312                 .hide   = 1,
3313                 .def    = "0",
3314                 .category = FIO_OPT_C_STAT,
3315                 .group  = FIO_OPT_G_INVALID,
3316         },
3317         {
3318                 .name   = "disable_slat",
3319                 .lname  = "Disable submission latency stats",
3320                 .type   = FIO_OPT_BOOL,
3321                 .off1   = td_var_offset(disable_slat),
3322                 .help   = "Disable submission latency numbers",
3323                 .parent = "gtod_reduce",
3324                 .hide   = 1,
3325                 .def    = "0",
3326                 .category = FIO_OPT_C_STAT,
3327                 .group  = FIO_OPT_G_INVALID,
3328         },
3329         {
3330                 .name   = "disable_bw_measurement",