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 #define cb_data_to_td(data)     container_of(data, struct thread_data, o)
  24
  25 static struct pattern_fmt_desc fmt_desc[] = {
  26         {
  27                 .fmt   = "%o",
  28                 .len   = FIELD_SIZE(struct io_u *, offset),
  29                 .paste = paste_blockoff
  30         }
  31 };
  32
  33 /*
  34  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  35  */
  36 static char *get_opt_postfix(const char *str)
  37 {
  38         char *p = strstr(str, ":");
  39
  40         if (!p)
  41                 return NULL;
  42
  43         p++;
  44         strip_blank_front(&p);
  45         strip_blank_end(p);
  46         return strdup(p);
  47 }
  48
  49 static int bs_cmp(const void *p1, const void *p2)
  50 {
  51         const struct bssplit *bsp1 = p1;
  52         const struct bssplit *bsp2 = p2;
  53
  54         return (int) bsp1->perc - (int) bsp2->perc;
  55 }
  56
  57 struct split {
  58         unsigned int nr;
  59         unsigned int val1[ZONESPLIT_MAX];
  60         unsigned long long val2[ZONESPLIT_MAX];
  61 };
  62
  63 static int split_parse_ddir(struct thread_options *o, struct split *split,
  64                             enum fio_ddir ddir, char *str, bool absolute)
  65 {
  66         unsigned long long perc;
  67         unsigned int i;
  68         long long val;
  69         char *fname;
  70
  71         split->nr = 0;
  72
  73         i = 0;
  74         while ((fname = strsep(&str, ":")) != NULL) {
  75                 char *perc_str;
  76
  77                 if (!strlen(fname))
  78                         break;
  79
  80                 perc_str = strstr(fname, "/");
  81                 if (perc_str) {
  82                         *perc_str = '\0';
  83                         perc_str++;
  84                         if (absolute) {
  85                                 if (str_to_decimal(perc_str, &val, 1, o, 0, 0)) {
  86                                         log_err("fio: split conversion failed\n");
  87                                         return 1;
  88                                 }
  89                                 perc = val;
  90                         } else {
  91                                 perc = atoi(perc_str);
  92                                 if (perc > 100)
  93                                         perc = 100;
  94                                 else if (!perc)
  95                                         perc = -1U;
  96                         }
  97                 } else {
  98                         if (absolute)
  99                                 perc = 0;
 100                         else
 101                                 perc = -1U;
 102                 }
 103
 104                 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
 105                         log_err("fio: split conversion failed\n");
 106                         return 1;
 107                 }
 108
 109                 split->val1[i] = val;
 110                 split->val2[i] = perc;
 111                 i++;
 112                 if (i == ZONESPLIT_MAX)
 113                         break;
 114         }
 115
 116         split->nr = i;
 117         return 0;
 118 }
 119
 120 static int bssplit_ddir(struct thread_options *o, enum fio_ddir ddir, char *str,
 121                         bool data)
 122 {
 123         unsigned int i, perc, perc_missing;
 124         unsigned int max_bs, min_bs;
 125         struct split split;
 126
 127         memset(&split, 0, sizeof(split));
 128
 129         if (split_parse_ddir(o, &split, ddir, str, data))
 130                 return 1;
 131         if (!split.nr)
 132                 return 0;
 133
 134         max_bs = 0;
 135         min_bs = -1;
 136         o->bssplit[ddir] = malloc(split.nr * sizeof(struct bssplit));
 137         o->bssplit_nr[ddir] = split.nr;
 138         for (i = 0; i < split.nr; i++) {
 139                 if (split.val1[i] > max_bs)
 140                         max_bs = split.val1[i];
 141                 if (split.val1[i] < min_bs)
 142                         min_bs = split.val1[i];
 143
 144                 o->bssplit[ddir][i].bs = split.val1[i];
 145                 o->bssplit[ddir][i].perc =split.val2[i];
 146         }
 147
 148         /*
 149          * Now check if the percentages add up, and how much is missing
 150          */
 151         perc = perc_missing = 0;
 152         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 153                 struct bssplit *bsp = &o->bssplit[ddir][i];
 154
 155                 if (bsp->perc == -1U)
 156                         perc_missing++;
 157                 else
 158                         perc += bsp->perc;
 159         }
 160
 161         if (perc > 100 && perc_missing > 1) {
 162                 log_err("fio: bssplit percentages add to more than 100%%\n");
 163                 free(o->bssplit[ddir]);
 164                 o->bssplit[ddir] = NULL;
 165                 return 1;
 166         }
 167
 168         /*
 169          * If values didn't have a percentage set, divide the remains between
 170          * them.
 171          */
 172         if (perc_missing) {
 173                 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
 174                         perc = 100;
 175                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 176                         struct bssplit *bsp = &o->bssplit[ddir][i];
 177
 178                         if (bsp->perc == -1U)
 179                                 bsp->perc = (100 - perc) / perc_missing;
 180                 }
 181         }
 182
 183         o->min_bs[ddir] = min_bs;
 184         o->max_bs[ddir] = max_bs;
 185
 186         /*
 187          * now sort based on percentages, for ease of lookup
 188          */
 189         qsort(o->bssplit[ddir], o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 190         return 0;
 191 }
 192
 193 typedef int (split_parse_fn)(struct thread_options *, enum fio_ddir, char *, bool);
 194
 195 static int str_split_parse(struct thread_data *td, char *str,
 196                            split_parse_fn *fn, bool data)
 197 {
 198         char *odir, *ddir;
 199         int ret = 0;
 200
 201         odir = strchr(str, ',');
 202         if (odir) {
 203                 ddir = strchr(odir + 1, ',');
 204                 if (ddir) {
 205                         ret = fn(&td->o, DDIR_TRIM, ddir + 1, data);
 206                         if (!ret)
 207                                 *ddir = '\0';
 208                 } else {
 209                         char *op;
 210
 211                         op = strdup(odir + 1);
 212                         ret = fn(&td->o, DDIR_TRIM, op, data);
 213
 214                         free(op);
 215                 }
 216                 if (!ret)
 217                         ret = fn(&td->o, DDIR_WRITE, odir + 1, data);
 218                 if (!ret) {
 219                         *odir = '\0';
 220                         ret = fn(&td->o, DDIR_READ, str, data);
 221                 }
 222         } else {
 223                 char *op;
 224
 225                 op = strdup(str);
 226                 ret = fn(&td->o, DDIR_WRITE, op, data);
 227                 free(op);
 228
 229                 if (!ret) {
 230                         op = strdup(str);
 231                         ret = fn(&td->o, DDIR_TRIM, op, data);
 232                         free(op);
 233                 }
 234                 if (!ret)
 235                         ret = fn(&td->o, DDIR_READ, str, data);
 236         }
 237
 238         return ret;
 239 }
 240
 241 static int str_bssplit_cb(void *data, const char *input)
 242 {
 243         struct thread_data *td = cb_data_to_td(data);
 244         char *str, *p;
 245         int ret = 0;
 246
 247         p = str = strdup(input);
 248
 249         strip_blank_front(&str);
 250         strip_blank_end(str);
 251
 252         ret = str_split_parse(td, str, bssplit_ddir, false);
 253
 254         if (parse_dryrun()) {
 255                 int i;
 256
 257                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 258                         free(td->o.bssplit[i]);
 259                         td->o.bssplit[i] = NULL;
 260                         td->o.bssplit_nr[i] = 0;
 261                 }
 262         }
 263
 264         free(p);
 265         return ret;
 266 }
 267
 268 static int str2error(char *str)
 269 {
 270         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
 271                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
 272                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
 273                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
 274                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
 275                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
 276                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
 277                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
 278         int i = 0, num = sizeof(err) / sizeof(char *);
 279
 280         while (i < num) {
 281                 if (!strcmp(err[i], str))
 282                         return i + 1;
 283                 i++;
 284         }
 285         return 0;
 286 }
 287
 288 static int ignore_error_type(struct thread_data *td, enum error_type_bit etype,
 289                                 char *str)
 290 {
 291         unsigned int i;
 292         int *error;
 293         char *fname;
 294
 295         if (etype >= ERROR_TYPE_CNT) {
 296                 log_err("Illegal error type\n");
 297                 return 1;
 298         }
 299
 300         td->o.ignore_error_nr[etype] = 4;
 301         error = calloc(4, sizeof(int));
 302
 303         i = 0;
 304         while ((fname = strsep(&str, ":")) != NULL) {
 305
 306                 if (!strlen(fname))
 307                         break;
 308
 309                 /*
 310                  * grow struct buffer, if needed
 311                  */
 312                 if (i == td->o.ignore_error_nr[etype]) {
 313                         td->o.ignore_error_nr[etype] <<= 1;
 314                         error = realloc(error, td->o.ignore_error_nr[etype]
 315                                                   * sizeof(int));
 316                 }
 317                 if (fname[0] == 'E') {
 318                         error[i] = str2error(fname);
 319                 } else {
 320                         error[i] = atoi(fname);
 321                         if (error[i] < 0)
 322                                 error[i] = -error[i];
 323                 }
 324                 if (!error[i]) {
 325                         log_err("Unknown error %s, please use number value\n",
 326                                   fname);
 327                         td->o.ignore_error_nr[etype] = 0;
 328                         free(error);
 329                         return 1;
 330                 }
 331                 i++;
 332         }
 333         if (i) {
 334                 td->o.continue_on_error |= 1 << etype;
 335                 td->o.ignore_error_nr[etype] = i;
 336                 td->o.ignore_error[etype] = error;
 337         } else {
 338                 td->o.ignore_error_nr[etype] = 0;
 339                 free(error);
 340         }
 341
 342         return 0;
 343
 344 }
 345
 346 static int str_ignore_error_cb(void *data, const char *input)
 347 {
 348         struct thread_data *td = cb_data_to_td(data);
 349         char *str, *p, *n;
 350         int ret = 1;
 351         enum error_type_bit type = 0;
 352
 353         if (parse_dryrun())
 354                 return 0;
 355
 356         p = str = strdup(input);
 357
 358         strip_blank_front(&str);
 359         strip_blank_end(str);
 360
 361         while (p) {
 362                 n = strchr(p, ',');
 363                 if (n)
 364                         *n++ = '\0';
 365                 ret = ignore_error_type(td, type, p);
 366                 if (ret)
 367                         break;
 368                 p = n;
 369                 type++;
 370         }
 371         free(str);
 372         return ret;
 373 }
 374
 375 static int str_rw_cb(void *data, const char *str)
 376 {
 377         struct thread_data *td = cb_data_to_td(data);
 378         struct thread_options *o = &td->o;
 379         char *nr;
 380
 381         if (parse_dryrun())
 382                 return 0;
 383
 384         o->ddir_seq_nr = 1;
 385         o->ddir_seq_add = 0;
 386
 387         nr = get_opt_postfix(str);
 388         if (!nr)
 389                 return 0;
 390
 391         if (td_random(td))
 392                 o->ddir_seq_nr = atoi(nr);
 393         else {
 394                 long long val;
 395
 396                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
 397                         log_err("fio: rw postfix parsing failed\n");
 398                         free(nr);
 399                         return 1;
 400                 }
 401
 402                 o->ddir_seq_add = val;
 403         }
 404
 405         free(nr);
 406         return 0;
 407 }
 408
 409 static int str_mem_cb(void *data, const char *mem)
 410 {
 411         struct thread_data *td = cb_data_to_td(data);
 412
 413         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP ||
 414             td->o.mem_type == MEM_MMAPSHARED)
 415                 td->o.mmapfile = get_opt_postfix(mem);
 416
 417         return 0;
 418 }
 419
 420 static int fio_clock_source_cb(void *data, const char *str)
 421 {
 422         struct thread_data *td = cb_data_to_td(data);
 423
 424         fio_clock_source = td->o.clocksource;
 425         fio_clock_source_set = 1;
 426         fio_clock_init();
 427         return 0;
 428 }
 429
 430 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 431 {
 432         struct thread_data *td = cb_data_to_td(data);
 433
 434         td->o.rwmix[DDIR_READ] = *val;
 435         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 436         return 0;
 437 }
 438
 439 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 440 {
 441         struct thread_data *td = cb_data_to_td(data);
 442
 443         td->o.rwmix[DDIR_WRITE] = *val;
 444         td->o.rwmix[DDIR_READ] = 100 - *val;
 445         return 0;
 446 }
 447
 448 static int str_exitall_cb(void)
 449 {
 450         exitall_on_terminate = 1;
 451         return 0;
 452 }
 453
 454 #ifdef FIO_HAVE_CPU_AFFINITY
 455 int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
 456 {
 457         unsigned int i, index, cpus_in_mask;
 458         const long max_cpu = cpus_online();
 459
 460         cpus_in_mask = fio_cpu_count(mask);
 461         cpu_index = cpu_index % cpus_in_mask;
 462
 463         index = 0;
 464         for (i = 0; i < max_cpu; i++) {
 465                 if (!fio_cpu_isset(mask, i))
 466                         continue;
 467
 468                 if (cpu_index != index)
 469                         fio_cpu_clear(mask, i);
 470
 471                 index++;
 472         }
 473
 474         return fio_cpu_count(mask);
 475 }
 476
 477 static int str_cpumask_cb(void *data, unsigned long long *val)
 478 {
 479         struct thread_data *td = cb_data_to_td(data);
 480         unsigned int i;
 481         long max_cpu;
 482         int ret;
 483
 484         if (parse_dryrun())
 485                 return 0;
 486
 487         ret = fio_cpuset_init(&td->o.cpumask);
 488         if (ret < 0) {
 489                 log_err("fio: cpuset_init failed\n");
 490                 td_verror(td, ret, "fio_cpuset_init");
 491                 return 1;
 492         }
 493
 494         max_cpu = cpus_online();
 495
 496         for (i = 0; i < sizeof(int) * 8; i++) {
 497                 if ((1 << i) & *val) {
 498                         if (i >= max_cpu) {
 499                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 500                                                                 max_cpu - 1);
 501                                 return 1;
 502                         }
 503                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 504                         fio_cpu_set(&td->o.cpumask, i);
 505                 }
 506         }
 507
 508         return 0;
 509 }
 510
 511 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 512                             const char *input)
 513 {
 514         char *cpu, *str, *p;
 515         long max_cpu;
 516         int ret = 0;
 517
 518         ret = fio_cpuset_init(mask);
 519         if (ret < 0) {
 520                 log_err("fio: cpuset_init failed\n");
 521                 td_verror(td, ret, "fio_cpuset_init");
 522                 return 1;
 523         }
 524
 525         p = str = strdup(input);
 526
 527         strip_blank_front(&str);
 528         strip_blank_end(str);
 529
 530         max_cpu = cpus_online();
 531
 532         while ((cpu = strsep(&str, ",")) != NULL) {
 533                 char *str2, *cpu2;
 534                 int icpu, icpu2;
 535
 536                 if (!strlen(cpu))
 537                         break;
 538
 539                 str2 = cpu;
 540                 icpu2 = -1;
 541                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 542                         if (!strlen(cpu2))
 543                                 break;
 544
 545                         icpu2 = atoi(cpu2);
 546                 }
 547
 548                 icpu = atoi(cpu);
 549                 if (icpu2 == -1)
 550                         icpu2 = icpu;
 551                 while (icpu <= icpu2) {
 552                         if (icpu >= FIO_MAX_CPUS) {
 553                                 log_err("fio: your OS only supports up to"
 554                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 555                                 ret = 1;
 556                                 break;
 557                         }
 558                         if (icpu >= max_cpu) {
 559                                 log_err("fio: CPU %d too large (max=%ld)\n",
 560                                                         icpu, max_cpu - 1);
 561                                 ret = 1;
 562                                 break;
 563                         }
 564
 565                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 566                         fio_cpu_set(mask, icpu);
 567                         icpu++;
 568                 }
 569                 if (ret)
 570                         break;
 571         }
 572
 573         free(p);
 574         return ret;
 575 }
 576
 577 static int str_cpus_allowed_cb(void *data, const char *input)
 578 {
 579         struct thread_data *td = cb_data_to_td(data);
 580
 581         if (parse_dryrun())
 582                 return 0;
 583
 584         return set_cpus_allowed(td, &td->o.cpumask, input);
 585 }
 586
 587 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 588 {
 589         struct thread_data *td = cb_data_to_td(data);
 590
 591         if (parse_dryrun())
 592                 return 0;
 593
 594         return set_cpus_allowed(td, &td->o.verify_cpumask, input);
 595 }
 596
 597 #ifdef CONFIG_ZLIB
 598 static int str_log_cpus_allowed_cb(void *data, const char *input)
 599 {
 600         struct thread_data *td = cb_data_to_td(data);
 601
 602         if (parse_dryrun())
 603                 return 0;
 604
 605         return set_cpus_allowed(td, &td->o.log_gz_cpumask, input);
 606 }
 607 #endif /* CONFIG_ZLIB */
 608
 609 #endif /* FIO_HAVE_CPU_AFFINITY */
 610
 611 #ifdef CONFIG_LIBNUMA
 612 static int str_numa_cpunodes_cb(void *data, char *input)
 613 {
 614         struct thread_data *td = cb_data_to_td(data);
 615         struct bitmask *verify_bitmask;
 616
 617         if (parse_dryrun())
 618                 return 0;
 619
 620         /* numa_parse_nodestring() parses a character string list
 621          * of nodes into a bit mask. The bit mask is allocated by
 622          * numa_allocate_nodemask(), so it should be freed by
 623          * numa_free_nodemask().
 624          */
 625         verify_bitmask = numa_parse_nodestring(input);
 626         if (verify_bitmask == NULL) {
 627                 log_err("fio: numa_parse_nodestring failed\n");
 628                 td_verror(td, 1, "str_numa_cpunodes_cb");
 629                 return 1;
 630         }
 631         numa_free_nodemask(verify_bitmask);
 632
 633         td->o.numa_cpunodes = strdup(input);
 634         return 0;
 635 }
 636
 637 static int str_numa_mpol_cb(void *data, char *input)
 638 {
 639         struct thread_data *td = cb_data_to_td(data);
 640         const char * const policy_types[] =
 641                 { "default", "prefer", "bind", "interleave", "local", NULL };
 642         int i;
 643         char *nodelist;
 644         struct bitmask *verify_bitmask;
 645
 646         if (parse_dryrun())
 647                 return 0;
 648
 649         nodelist = strchr(input, ':');
 650         if (nodelist) {
 651                 /* NUL-terminate mode */
 652                 *nodelist++ = '\0';
 653         }
 654
 655         for (i = 0; i <= MPOL_LOCAL; i++) {
 656                 if (!strcmp(input, policy_types[i])) {
 657                         td->o.numa_mem_mode = i;
 658                         break;
 659                 }
 660         }
 661         if (i > MPOL_LOCAL) {
 662                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
 663                 goto out;
 664         }
 665
 666         switch (td->o.numa_mem_mode) {
 667         case MPOL_PREFERRED:
 668                 /*
 669                  * Insist on a nodelist of one node only
 670                  */
 671                 if (nodelist) {
 672                         char *rest = nodelist;
 673                         while (isdigit(*rest))
 674                                 rest++;
 675                         if (*rest) {
 676                                 log_err("fio: one node only for \'prefer\'\n");
 677                                 goto out;
 678                         }
 679                 } else {
 680                         log_err("fio: one node is needed for \'prefer\'\n");
 681                         goto out;
 682                 }
 683                 break;
 684         case MPOL_INTERLEAVE:
 685                 /*
 686                  * Default to online nodes with memory if no nodelist
 687                  */
 688                 if (!nodelist)
 689                         nodelist = strdup("all");
 690                 break;
 691         case MPOL_LOCAL:
 692         case MPOL_DEFAULT:
 693                 /*
 694                  * Don't allow a nodelist
 695                  */
 696                 if (nodelist) {
 697                         log_err("fio: NO nodelist for \'local\'\n");
 698                         goto out;
 699                 }
 700                 break;
 701         case MPOL_BIND:
 702                 /*
 703                  * Insist on a nodelist
 704                  */
 705                 if (!nodelist) {
 706                         log_err("fio: a nodelist is needed for \'bind\'\n");
 707                         goto out;
 708                 }
 709                 break;
 710         }
 711
 712
 713         /* numa_parse_nodestring() parses a character string list
 714          * of nodes into a bit mask. The bit mask is allocated by
 715          * numa_allocate_nodemask(), so it should be freed by
 716          * numa_free_nodemask().
 717          */
 718         switch (td->o.numa_mem_mode) {
 719         case MPOL_PREFERRED:
 720                 td->o.numa_mem_prefer_node = atoi(nodelist);
 721                 break;
 722         case MPOL_INTERLEAVE:
 723         case MPOL_BIND:
 724                 verify_bitmask = numa_parse_nodestring(nodelist);
 725                 if (verify_bitmask == NULL) {
 726                         log_err("fio: numa_parse_nodestring failed\n");
 727                         td_verror(td, 1, "str_numa_memnodes_cb");
 728                         return 1;
 729                 }
 730                 td->o.numa_memnodes = strdup(nodelist);
 731                 numa_free_nodemask(verify_bitmask);
 732
 733                 break;
 734         case MPOL_LOCAL:
 735         case MPOL_DEFAULT:
 736         default:
 737                 break;
 738         }
 739
 740         return 0;
 741 out:
 742         return 1;
 743 }
 744 #endif
 745
 746 static int str_fst_cb(void *data, const char *str)
 747 {
 748         struct thread_data *td = cb_data_to_td(data);
 749         double val;
 750         bool done = false;
 751         char *nr;
 752
 753         td->file_service_nr = 1;
 754
 755         switch (td->o.file_service_type) {
 756         case FIO_FSERVICE_RANDOM:
 757         case FIO_FSERVICE_RR:
 758         case FIO_FSERVICE_SEQ:
 759                 nr = get_opt_postfix(str);
 760                 if (nr) {
 761                         td->file_service_nr = atoi(nr);
 762                         free(nr);
 763                 }
 764                 done = true;
 765                 break;
 766         case FIO_FSERVICE_ZIPF:
 767                 val = FIO_DEF_ZIPF;
 768                 break;
 769         case FIO_FSERVICE_PARETO:
 770                 val = FIO_DEF_PARETO;
 771                 break;
 772         case FIO_FSERVICE_GAUSS:
 773                 val = 0.0;
 774                 break;
 775         default:
 776                 log_err("fio: bad file service type: %d\n", td->o.file_service_type);
 777                 return 1;
 778         }
 779
 780         if (done)
 781                 return 0;
 782
 783         nr = get_opt_postfix(str);
 784         if (nr && !str_to_float(nr, &val, 0)) {
 785                 log_err("fio: file service type random postfix parsing failed\n");
 786                 free(nr);
 787                 return 1;
 788         }
 789
 790         free(nr);
 791
 792         switch (td->o.file_service_type) {
 793         case FIO_FSERVICE_ZIPF:
 794                 if (val == 1.00) {
 795                         log_err("fio: zipf theta must be different than 1.0\n");
 796                         return 1;
 797                 }
 798                 if (parse_dryrun())
 799                         return 0;
 800                 td->zipf_theta = val;
 801                 break;
 802         case FIO_FSERVICE_PARETO:
 803                 if (val <= 0.00 || val >= 1.00) {
 804                           log_err("fio: pareto input out of range (0 < input < 1.0)\n");
 805                           return 1;
 806                 }
 807                 if (parse_dryrun())
 808                         return 0;
 809                 td->pareto_h = val;
 810                 break;
 811         case FIO_FSERVICE_GAUSS:
 812                 if (val < 0.00 || val >= 100.00) {
 813                           log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
 814                           return 1;
 815                 }
 816                 if (parse_dryrun())
 817                         return 0;
 818                 td->gauss_dev = val;
 819                 break;
 820         }
 821
 822         return 0;
 823 }
 824
 825 #ifdef CONFIG_SYNC_FILE_RANGE
 826 static int str_sfr_cb(void *data, const char *str)
 827 {
 828         struct thread_data *td = cb_data_to_td(data);
 829         char *nr = get_opt_postfix(str);
 830
 831         td->sync_file_range_nr = 1;
 832         if (nr) {
 833                 td->sync_file_range_nr = atoi(nr);
 834                 free(nr);
 835         }
 836
 837         return 0;
 838 }
 839 #endif
 840
 841 static int zone_split_ddir(struct thread_options *o, enum fio_ddir ddir,
 842                            char *str, bool absolute)
 843 {
 844         unsigned int i, perc, perc_missing, sperc, sperc_missing;
 845         struct split split;
 846
 847         memset(&split, 0, sizeof(split));
 848
 849         if (split_parse_ddir(o, &split, ddir, str, absolute))
 850                 return 1;
 851         if (!split.nr)
 852                 return 0;
 853
 854         o->zone_split[ddir] = malloc(split.nr * sizeof(struct zone_split));
 855         o->zone_split_nr[ddir] = split.nr;
 856         for (i = 0; i < split.nr; i++) {
 857                 o->zone_split[ddir][i].access_perc = split.val1[i];
 858                 if (absolute)
 859                         o->zone_split[ddir][i].size = split.val2[i];
 860                 else
 861                         o->zone_split[ddir][i].size_perc = split.val2[i];
 862         }
 863
 864         /*
 865          * Now check if the percentages add up, and how much is missing
 866          */
 867         perc = perc_missing = 0;
 868         sperc = sperc_missing = 0;
 869         for (i = 0; i < o->zone_split_nr[ddir]; i++) {
 870                 struct zone_split *zsp = &o->zone_split[ddir][i];
 871
 872                 if (zsp->access_perc == (uint8_t) -1U)
 873                         perc_missing++;
 874                 else
 875                         perc += zsp->access_perc;
 876
 877                 if (!absolute) {
 878                         if (zsp->size_perc == (uint8_t) -1U)
 879                                 sperc_missing++;
 880                         else
 881                                 sperc += zsp->size_perc;
 882                 }
 883         }
 884
 885         if (perc > 100 || sperc > 100) {
 886                 log_err("fio: zone_split percentages add to more than 100%%\n");
 887                 free(o->zone_split[ddir]);
 888                 o->zone_split[ddir] = NULL;
 889                 return 1;
 890         }
 891         if (perc < 100) {
 892                 log_err("fio: access percentage don't add up to 100 for zoned "
 893                         "random distribution (got=%u)\n", perc);
 894                 free(o->zone_split[ddir]);
 895                 o->zone_split[ddir] = NULL;
 896                 return 1;
 897         }
 898
 899         /*
 900          * If values didn't have a percentage set, divide the remains between
 901          * them.
 902          */
 903         if (perc_missing) {
 904                 if (perc_missing == 1 && o->zone_split_nr[ddir] == 1)
 905                         perc = 100;
 906                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
 907                         struct zone_split *zsp = &o->zone_split[ddir][i];
 908
 909                         if (zsp->access_perc == (uint8_t) -1U)
 910                                 zsp->access_perc = (100 - perc) / perc_missing;
 911                 }
 912         }
 913         if (sperc_missing) {
 914                 if (sperc_missing == 1 && o->zone_split_nr[ddir] == 1)
 915                         sperc = 100;
 916                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
 917                         struct zone_split *zsp = &o->zone_split[ddir][i];
 918
 919                         if (zsp->size_perc == (uint8_t) -1U)
 920                                 zsp->size_perc = (100 - sperc) / sperc_missing;
 921                 }
 922         }
 923
 924         return 0;
 925 }
 926
 927 static void __td_zone_gen_index(struct thread_data *td, enum fio_ddir ddir)
 928 {
 929         unsigned int i, j, sprev, aprev;
 930         uint64_t sprev_sz;
 931
 932         td->zone_state_index[ddir] = malloc(sizeof(struct zone_split_index) * 100);
 933
 934         sprev_sz = sprev = aprev = 0;
 935         for (i = 0; i < td->o.zone_split_nr[ddir]; i++) {
 936                 struct zone_split *zsp = &td->o.zone_split[ddir][i];
 937
 938                 for (j = aprev; j < aprev + zsp->access_perc; j++) {
 939                         struct zone_split_index *zsi = &td->zone_state_index[ddir][j];
 940
 941                         zsi->size_perc = sprev + zsp->size_perc;
 942                         zsi->size_perc_prev = sprev;
 943
 944                         zsi->size = sprev_sz + zsp->size;
 945                         zsi->size_prev = sprev_sz;
 946                 }
 947
 948                 aprev += zsp->access_perc;
 949                 sprev += zsp->size_perc;
 950                 sprev_sz += zsp->size;
 951         }
 952 }
 953
 954 /*
 955  * Generate state table for indexes, so we don't have to do it inline from
 956  * the hot IO path
 957  */
 958 static void td_zone_gen_index(struct thread_data *td)
 959 {
 960         int i;
 961
 962         td->zone_state_index = malloc(DDIR_RWDIR_CNT *
 963                                         sizeof(struct zone_split_index *));
 964
 965         for (i = 0; i < DDIR_RWDIR_CNT; i++)
 966                 __td_zone_gen_index(td, i);
 967 }
 968
 969 static int parse_zoned_distribution(struct thread_data *td, const char *input,
 970                                     bool absolute)
 971 {
 972         const char *pre = absolute ? "zoned_abs:" : "zoned:";
 973         char *str, *p;
 974         int i, ret = 0;
 975
 976         p = str = strdup(input);
 977
 978         strip_blank_front(&str);
 979         strip_blank_end(str);
 980
 981         /* We expect it to start like that, bail if not */
 982         if (strncmp(str, pre, strlen(pre))) {
 983                 log_err("fio: mismatch in zoned input <%s>\n", str);
 984                 free(p);
 985                 return 1;
 986         }
 987         str += strlen(pre);
 988
 989         ret = str_split_parse(td, str, zone_split_ddir, absolute);
 990
 991         free(p);
 992
 993         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 994                 int j;
 995
 996                 dprint(FD_PARSE, "zone ddir %d (nr=%u): \n", i, td->o.zone_split_nr[i]);
 997
 998                 for (j = 0; j < td->o.zone_split_nr[i]; j++) {
 999                         struct zone_split *zsp = &td->o.zone_split[i][j];
1000
1001                         if (absolute) {
1002                                 dprint(FD_PARSE, "\t%d: %u/%llu\n", j,
1003                                                 zsp->access_perc,
1004                                                 (unsigned long long) zsp->size);
1005                         } else {
1006                                 dprint(FD_PARSE, "\t%d: %u/%u\n", j,
1007                                                 zsp->access_perc,
1008                                                 zsp->size_perc);
1009                         }
1010                 }
1011         }
1012
1013         if (parse_dryrun()) {
1014                 int i;
1015
1016                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1017                         free(td->o.zone_split[i]);
1018                         td->o.zone_split[i] = NULL;
1019                         td->o.zone_split_nr[i] = 0;
1020                 }
1021
1022                 return ret;
1023         }
1024
1025         if (!ret)
1026                 td_zone_gen_index(td);
1027         else {
1028                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1029                         td->o.zone_split_nr[i] = 0;
1030         }
1031
1032         return ret;
1033 }
1034
1035 static int str_random_distribution_cb(void *data, const char *str)
1036 {
1037         struct thread_data *td = cb_data_to_td(data);
1038         double val;
1039         char *nr;
1040
1041         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1042                 val = FIO_DEF_ZIPF;
1043         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1044                 val = FIO_DEF_PARETO;
1045         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1046                 val = 0.0;
1047         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
1048                 return parse_zoned_distribution(td, str, false);
1049         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
1050                 return parse_zoned_distribution(td, str, true);
1051         else
1052                 return 0;
1053
1054         nr = get_opt_postfix(str);
1055         if (nr && !str_to_float(nr, &val, 0)) {
1056                 log_err("fio: random postfix parsing failed\n");
1057                 free(nr);
1058                 return 1;
1059         }
1060
1061         free(nr);
1062
1063         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
1064                 if (val == 1.00) {
1065                         log_err("fio: zipf theta must different than 1.0\n");
1066                         return 1;
1067                 }
1068                 if (parse_dryrun())
1069                         return 0;
1070                 td->o.zipf_theta.u.f = val;
1071         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
1072                 if (val <= 0.00 || val >= 1.00) {
1073                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1074                         return 1;
1075                 }
1076                 if (parse_dryrun())
1077                         return 0;
1078                 td->o.pareto_h.u.f = val;
1079         } else {
1080                 if (val < 0.00 || val >= 100.0) {
1081                         log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1082                         return 1;
1083                 }
1084                 if (parse_dryrun())
1085                         return 0;
1086                 td->o.gauss_dev.u.f = val;
1087         }
1088
1089         return 0;
1090 }
1091
1092 static int str_steadystate_cb(void *data, const char *str)
1093 {
1094         struct thread_data *td = cb_data_to_td(data);
1095         double val;
1096         char *nr;
1097         char *pct;
1098         long long ll;
1099
1100         if (td->o.ss_state != FIO_SS_IOPS && td->o.ss_state != FIO_SS_IOPS_SLOPE &&
1101             td->o.ss_state != FIO_SS_BW && td->o.ss_state != FIO_SS_BW_SLOPE) {
1102                 /* should be impossible to get here */
1103                 log_err("fio: unknown steady state criterion\n");
1104                 return 1;
1105         }
1106
1107         nr = get_opt_postfix(str);
1108         if (!nr) {
1109                 log_err("fio: steadystate threshold must be specified in addition to criterion\n");
1110                 free(nr);
1111                 return 1;
1112         }
1113
1114         /* ENHANCEMENT Allow fio to understand size=10.2% and use here */
1115         pct = strstr(nr, "%");
1116         if (pct) {
1117                 *pct = '\0';
1118                 strip_blank_end(nr);
1119                 if (!str_to_float(nr, &val, 0)) {
1120                         log_err("fio: could not parse steadystate threshold percentage\n");
1121                         free(nr);
1122                         return 1;
1123                 }
1124
1125                 dprint(FD_PARSE, "set steady state threshold to %f%%\n", val);
1126                 free(nr);
1127                 if (parse_dryrun())
1128                         return 0;
1129
1130                 td->o.ss_state |= __FIO_SS_PCT;
1131                 td->o.ss_limit.u.f = val;
1132         } else if (td->o.ss_state & __FIO_SS_IOPS) {
1133                 if (!str_to_float(nr, &val, 0)) {
1134                         log_err("fio: steadystate IOPS threshold postfix parsing failed\n");
1135                         free(nr);
1136                         return 1;
1137                 }
1138
1139                 dprint(FD_PARSE, "set steady state IOPS threshold to %f\n", val);
1140                 free(nr);
1141                 if (parse_dryrun())
1142                         return 0;
1143
1144                 td->o.ss_limit.u.f = val;
1145         } else {        /* bandwidth criterion */
1146                 if (str_to_decimal(nr, &ll, 1, td, 0, 0)) {
1147                         log_err("fio: steadystate BW threshold postfix parsing failed\n");
1148                         free(nr);
1149                         return 1;
1150                 }
1151
1152                 dprint(FD_PARSE, "set steady state BW threshold to %lld\n", ll);
1153                 free(nr);
1154                 if (parse_dryrun())
1155                         return 0;
1156
1157                 td->o.ss_limit.u.f = (double) ll;
1158         }
1159
1160         td->ss.state = td->o.ss_state;
1161         return 0;
1162 }
1163
1164 /*
1165  * Return next name in the string. Files are separated with ':'. If the ':'
1166  * is escaped with a '\', then that ':' is part of the filename and does not
1167  * indicate a new file.
1168  */
1169 static char *get_next_name(char **ptr)
1170 {
1171         char *str = *ptr;
1172         char *p, *start;
1173
1174         if (!str || !strlen(str))
1175                 return NULL;
1176
1177         start = str;
1178         do {
1179                 /*
1180                  * No colon, we are done
1181                  */
1182                 p = strchr(str, ':');
1183                 if (!p) {
1184                         *ptr = NULL;
1185                         break;
1186                 }
1187
1188                 /*
1189                  * We got a colon, but it's the first character. Skip and
1190                  * continue
1191                  */
1192                 if (p == start) {
1193                         str = ++start;
1194                         continue;
1195                 }
1196
1197                 if (*(p - 1) != '\\') {
1198                         *p = '\0';
1199                         *ptr = p + 1;
1200                         break;
1201                 }
1202
1203                 memmove(p - 1, p, strlen(p) + 1);
1204                 str = p;
1205         } while (1);
1206
1207         return start;
1208 }
1209
1210
1211 static int get_max_name_idx(char *input)
1212 {
1213         unsigned int cur_idx;
1214         char *str, *p;
1215
1216         p = str = strdup(input);
1217         for (cur_idx = 0; ; cur_idx++)
1218                 if (get_next_name(&str) == NULL)
1219                         break;
1220
1221         free(p);
1222         return cur_idx;
1223 }
1224
1225 /*
1226  * Returns the directory at the index, indexes > entires will be
1227  * assigned via modulo division of the index
1228  */
1229 int set_name_idx(char *target, size_t tlen, char *input, int index,
1230                  bool unique_filename)
1231 {
1232         unsigned int cur_idx;
1233         int len;
1234         char *fname, *str, *p;
1235
1236         p = str = strdup(input);
1237
1238         index %= get_max_name_idx(input);
1239         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1240                 fname = get_next_name(&str);
1241
1242         if (client_sockaddr_str[0] && unique_filename) {
1243                 len = snprintf(target, tlen, "%s/%s.", fname,
1244                                 client_sockaddr_str);
1245         } else
1246                 len = snprintf(target, tlen, "%s/", fname);
1247
1248         target[tlen - 1] = '\0';
1249         free(p);
1250
1251         return len;
1252 }
1253
1254 static int str_filename_cb(void *data, const char *input)
1255 {
1256         struct thread_data *td = cb_data_to_td(data);
1257         char *fname, *str, *p;
1258
1259         p = str = strdup(input);
1260
1261         strip_blank_front(&str);
1262         strip_blank_end(str);
1263
1264         /*
1265          * Ignore what we may already have from nrfiles option.
1266          */
1267         if (!td->files_index)
1268                 td->o.nr_files = 0;
1269
1270         while ((fname = get_next_name(&str)) != NULL) {
1271                 if (!strlen(fname))
1272                         break;
1273                 add_file(td, fname, 0, 1);
1274         }
1275
1276         free(p);
1277         return 0;
1278 }
1279
1280 static int str_directory_cb(void *data, const char fio_unused *unused)
1281 {
1282         struct thread_data *td = cb_data_to_td(data);
1283         struct stat sb;
1284         char *dirname, *str, *p;
1285         int ret = 0;
1286
1287         if (parse_dryrun())
1288                 return 0;
1289
1290         p = str = strdup(td->o.directory);
1291         while ((dirname = get_next_name(&str)) != NULL) {
1292                 if (lstat(dirname, &sb) < 0) {
1293                         ret = errno;
1294
1295                         log_err("fio: %s is not a directory\n", dirname);
1296                         td_verror(td, ret, "lstat");
1297                         goto out;
1298                 }
1299                 if (!S_ISDIR(sb.st_mode)) {
1300                         log_err("fio: %s is not a directory\n", dirname);
1301                         ret = 1;
1302                         goto out;
1303                 }
1304         }
1305
1306 out:
1307         free(p);
1308         return ret;
1309 }
1310
1311 static int str_opendir_cb(void *data, const char fio_unused *str)
1312 {
1313         struct thread_data *td = cb_data_to_td(data);
1314
1315         if (parse_dryrun())
1316                 return 0;
1317
1318         if (!td->files_index)
1319                 td->o.nr_files = 0;
1320
1321         return add_dir_files(td, td->o.opendir);
1322 }
1323
1324 static int str_buffer_pattern_cb(void *data, const char *input)
1325 {
1326         struct thread_data *td = cb_data_to_td(data);
1327         int ret;
1328
1329         /* FIXME: for now buffer pattern does not support formats */
1330         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
1331                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
1332         if (ret < 0)
1333                 return 1;
1334
1335         assert(ret != 0);
1336         td->o.buffer_pattern_bytes = ret;
1337
1338         /*
1339          * If this job is doing any reading or has compression set,
1340          * ensure that we refill buffers for writes or we could be
1341          * invalidating the pattern through reads.
1342          */
1343         if (!td->o.compress_percentage && !td_read(td))
1344                 td->o.refill_buffers = 0;
1345         else
1346                 td->o.refill_buffers = 1;
1347
1348         td->o.scramble_buffers = 0;
1349         td->o.zero_buffers = 0;
1350
1351         return 0;
1352 }
1353
1354 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1355 {
1356         struct thread_data *td = cb_data_to_td(data);
1357
1358         td->flags |= TD_F_COMPRESS;
1359         td->o.compress_percentage = *il;
1360         return 0;
1361 }
1362
1363 static int str_dedupe_cb(void *data, unsigned long long *il)
1364 {
1365         struct thread_data *td = cb_data_to_td(data);
1366
1367         td->flags |= TD_F_COMPRESS;
1368         td->o.dedupe_percentage = *il;
1369         td->o.refill_buffers = 1;
1370         return 0;
1371 }
1372
1373 static int str_verify_pattern_cb(void *data, const char *input)
1374 {
1375         struct thread_data *td = cb_data_to_td(data);
1376         int ret;
1377
1378         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
1379         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
1380                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
1381                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
1382         if (ret < 0)
1383                 return 1;
1384
1385         assert(ret != 0);
1386         td->o.verify_pattern_bytes = ret;
1387         /*
1388          * VERIFY_* could already be set
1389          */
1390         if (!fio_option_is_set(&td->o, verify))
1391                 td->o.verify = VERIFY_PATTERN;
1392
1393         return 0;
1394 }
1395
1396 static int str_gtod_reduce_cb(void *data, int *il)
1397 {
1398         struct thread_data *td = cb_data_to_td(data);
1399         int val = *il;
1400
1401         td->o.disable_lat = !!val;
1402         td->o.disable_clat = !!val;
1403         td->o.disable_slat = !!val;
1404         td->o.disable_bw = !!val;
1405         td->o.clat_percentiles = !val;
1406         if (val)
1407                 td->ts_cache_mask = 63;
1408
1409         return 0;
1410 }
1411
1412 static int str_offset_cb(void *data, unsigned long long *__val)
1413 {
1414         struct thread_data *td = cb_data_to_td(data);
1415         unsigned long long v = *__val;
1416
1417         if (parse_is_percent(v)) {
1418                 td->o.start_offset = 0;
1419                 td->o.start_offset_percent = -1ULL - v;
1420                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1421                                         td->o.start_offset_percent);
1422         } else
1423                 td->o.start_offset = v;
1424
1425         return 0;
1426 }
1427
1428 static int str_size_cb(void *data, unsigned long long *__val)
1429 {
1430         struct thread_data *td = cb_data_to_td(data);
1431         unsigned long long v = *__val;
1432
1433         if (parse_is_percent(v)) {
1434                 td->o.size = 0;
1435                 td->o.size_percent = -1ULL - v;
1436                 dprint(FD_PARSE, "SET size_percent %d\n",
1437                                         td->o.size_percent);
1438         } else
1439                 td->o.size = v;
1440
1441         return 0;
1442 }
1443
1444 static int str_write_bw_log_cb(void *data, const char *str)
1445 {
1446         struct thread_data *td = cb_data_to_td(data);
1447
1448         if (str)
1449                 td->o.bw_log_file = strdup(str);
1450
1451         td->o.write_bw_log = 1;
1452         return 0;
1453 }
1454
1455 static int str_write_lat_log_cb(void *data, const char *str)
1456 {
1457         struct thread_data *td = cb_data_to_td(data);
1458
1459         if (str)
1460                 td->o.lat_log_file = strdup(str);
1461
1462         td->o.write_lat_log = 1;
1463         return 0;
1464 }
1465
1466 static int str_write_iops_log_cb(void *data, const char *str)
1467 {
1468         struct thread_data *td = cb_data_to_td(data);
1469
1470         if (str)
1471                 td->o.iops_log_file = strdup(str);
1472
1473         td->o.write_iops_log = 1;
1474         return 0;
1475 }
1476
1477 static int str_write_hist_log_cb(void *data, const char *str)
1478 {
1479         struct thread_data *td = cb_data_to_td(data);
1480
1481         if (str)
1482                 td->o.hist_log_file = strdup(str);
1483
1484         td->o.write_hist_log = 1;
1485         return 0;
1486 }
1487
1488 /*
1489  * str is supposed to be a substring of the strdup'd original string,
1490  * and is valid only if it's a regular file path.
1491  * This function keeps the pointer to the path as needed later.
1492  *
1493  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1494  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1495  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1496  */
1497 static int str_ioengine_external_cb(void *data, const char *str)
1498 {
1499         struct thread_data *td = cb_data_to_td(data);
1500         struct stat sb;
1501         char *p;
1502
1503         if (!str) {
1504                 log_err("fio: null external ioengine path\n");
1505                 return 1;
1506         }
1507
1508         p = (char *)str; /* str is mutable */
1509         strip_blank_front(&p);
1510         strip_blank_end(p);
1511
1512         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1513                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1514                 return 1;
1515         }
1516
1517         td->o.ioengine_so_path = p;
1518         return 0;
1519 }
1520
1521 static int rw_verify(struct fio_option *o, void *data)
1522 {
1523         struct thread_data *td = cb_data_to_td(data);
1524
1525         if (read_only && td_write(td)) {
1526                 log_err("fio: job <%s> has write bit set, but fio is in"
1527                         " read-only mode\n", td->o.name);
1528                 return 1;
1529         }
1530
1531         return 0;
1532 }
1533
1534 static int gtod_cpu_verify(struct fio_option *o, void *data)
1535 {
1536 #ifndef FIO_HAVE_CPU_AFFINITY
1537         struct thread_data *td = cb_data_to_td(data);
1538
1539         if (td->o.gtod_cpu) {
1540                 log_err("fio: platform must support CPU affinity for"
1541                         "gettimeofday() offloading\n");
1542                 return 1;
1543         }
1544 #endif
1545
1546         return 0;
1547 }
1548
1549 /*
1550  * Map of job/command line options
1551  */
1552 struct fio_option fio_options[FIO_MAX_OPTS] = {
1553         {
1554                 .name   = "description",
1555                 .lname  = "Description of job",
1556                 .type   = FIO_OPT_STR_STORE,
1557                 .off1   = offsetof(struct thread_options, description),
1558                 .help   = "Text job description",
1559                 .category = FIO_OPT_C_GENERAL,
1560                 .group  = FIO_OPT_G_DESC,
1561         },
1562         {
1563                 .name   = "name",
1564                 .lname  = "Job name",
1565                 .type   = FIO_OPT_STR_STORE,
1566                 .off1   = offsetof(struct thread_options, name),
1567                 .help   = "Name of this job",
1568                 .category = FIO_OPT_C_GENERAL,
1569                 .group  = FIO_OPT_G_DESC,
1570         },
1571         {
1572                 .name   = "wait_for",
1573                 .lname  = "Waitee name",
1574                 .type   = FIO_OPT_STR_STORE,
1575                 .off1   = offsetof(struct thread_options, wait_for),
1576                 .help   = "Name of the job this one wants to wait for before starting",
1577                 .category = FIO_OPT_C_GENERAL,
1578                 .group  = FIO_OPT_G_DESC,
1579         },
1580         {
1581                 .name   = "filename",
1582                 .lname  = "Filename(s)",
1583                 .type   = FIO_OPT_STR_STORE,
1584                 .off1   = offsetof(struct thread_options, filename),
1585                 .cb     = str_filename_cb,
1586                 .prio   = -1, /* must come after "directory" */
1587                 .help   = "File(s) to use for the workload",
1588                 .category = FIO_OPT_C_FILE,
1589                 .group  = FIO_OPT_G_FILENAME,
1590         },
1591         {
1592                 .name   = "directory",
1593                 .lname  = "Directory",
1594                 .type   = FIO_OPT_STR_STORE,
1595                 .off1   = offsetof(struct thread_options, directory),
1596                 .cb     = str_directory_cb,
1597                 .help   = "Directory to store files in",
1598                 .category = FIO_OPT_C_FILE,
1599                 .group  = FIO_OPT_G_FILENAME,
1600         },
1601         {
1602                 .name   = "filename_format",
1603                 .lname  = "Filename Format",
1604                 .type   = FIO_OPT_STR_STORE,
1605                 .off1   = offsetof(struct thread_options, filename_format),
1606                 .prio   = -1, /* must come after "directory" */
1607                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1608                 .def    = "$jobname.$jobnum.$filenum",
1609                 .category = FIO_OPT_C_FILE,
1610                 .group  = FIO_OPT_G_FILENAME,
1611         },
1612         {
1613                 .name   = "unique_filename",
1614                 .lname  = "Unique Filename",
1615                 .type   = FIO_OPT_BOOL,
1616                 .off1   = offsetof(struct thread_options, unique_filename),
1617                 .help   = "For network clients, prefix file with source IP",
1618                 .def    = "1",
1619                 .category = FIO_OPT_C_FILE,
1620                 .group  = FIO_OPT_G_FILENAME,
1621         },
1622         {
1623                 .name   = "lockfile",
1624                 .lname  = "Lockfile",
1625                 .type   = FIO_OPT_STR,
1626                 .off1   = offsetof(struct thread_options, file_lock_mode),
1627                 .help   = "Lock file when doing IO to it",
1628                 .prio   = 1,
1629                 .parent = "filename",
1630                 .hide   = 0,
1631                 .def    = "none",
1632                 .category = FIO_OPT_C_FILE,
1633                 .group  = FIO_OPT_G_FILENAME,
1634                 .posval = {
1635                           { .ival = "none",
1636                             .oval = FILE_LOCK_NONE,
1637                             .help = "No file locking",
1638                           },
1639                           { .ival = "exclusive",
1640                             .oval = FILE_LOCK_EXCLUSIVE,
1641                             .help = "Exclusive file lock",
1642                           },
1643                           {
1644                             .ival = "readwrite",
1645                             .oval = FILE_LOCK_READWRITE,
1646                             .help = "Read vs write lock",
1647                           },
1648                 },
1649         },
1650         {
1651                 .name   = "opendir",
1652                 .lname  = "Open directory",
1653                 .type   = FIO_OPT_STR_STORE,
1654                 .off1   = offsetof(struct thread_options, opendir),
1655                 .cb     = str_opendir_cb,
1656                 .help   = "Recursively add files from this directory and down",
1657                 .category = FIO_OPT_C_FILE,
1658                 .group  = FIO_OPT_G_FILENAME,
1659         },
1660         {
1661                 .name   = "rw",
1662                 .lname  = "Read/write",
1663                 .alias  = "readwrite",
1664                 .type   = FIO_OPT_STR,
1665                 .cb     = str_rw_cb,
1666                 .off1   = offsetof(struct thread_options, td_ddir),
1667                 .help   = "IO direction",
1668                 .def    = "read",
1669                 .verify = rw_verify,
1670                 .category = FIO_OPT_C_IO,
1671                 .group  = FIO_OPT_G_IO_BASIC,
1672                 .posval = {
1673                           { .ival = "read",
1674                             .oval = TD_DDIR_READ,
1675                             .help = "Sequential read",
1676                           },
1677                           { .ival = "write",
1678                             .oval = TD_DDIR_WRITE,
1679                             .help = "Sequential write",
1680                           },
1681                           { .ival = "trim",
1682                             .oval = TD_DDIR_TRIM,
1683                             .help = "Sequential trim",
1684                           },
1685                           { .ival = "randread",
1686                             .oval = TD_DDIR_RANDREAD,
1687                             .help = "Random read",
1688                           },
1689                           { .ival = "randwrite",
1690                             .oval = TD_DDIR_RANDWRITE,
1691                             .help = "Random write",
1692                           },
1693                           { .ival = "randtrim",
1694                             .oval = TD_DDIR_RANDTRIM,
1695                             .help = "Random trim",
1696                           },
1697                           { .ival = "rw",
1698                             .oval = TD_DDIR_RW,
1699                             .help = "Sequential read and write mix",
1700                           },
1701                           { .ival = "readwrite",
1702                             .oval = TD_DDIR_RW,
1703                             .help = "Sequential read and write mix",
1704                           },
1705                           { .ival = "randrw",
1706                             .oval = TD_DDIR_RANDRW,
1707                             .help = "Random read and write mix"
1708                           },
1709                           { .ival = "trimwrite",
1710                             .oval = TD_DDIR_TRIMWRITE,
1711                             .help = "Trim and write mix, trims preceding writes"
1712                           },
1713                 },
1714         },
1715         {
1716                 .name   = "rw_sequencer",
1717                 .lname  = "RW Sequencer",
1718                 .type   = FIO_OPT_STR,
1719                 .off1   = offsetof(struct thread_options, rw_seq),
1720                 .help   = "IO offset generator modifier",
1721                 .def    = "sequential",
1722                 .category = FIO_OPT_C_IO,
1723                 .group  = FIO_OPT_G_IO_BASIC,
1724                 .posval = {
1725                           { .ival = "sequential",
1726                             .oval = RW_SEQ_SEQ,
1727                             .help = "Generate sequential offsets",
1728                           },
1729                           { .ival = "identical",
1730                             .oval = RW_SEQ_IDENT,
1731                             .help = "Generate identical offsets",
1732                           },
1733                 },
1734         },
1735
1736         {
1737                 .name   = "ioengine",
1738                 .lname  = "IO Engine",
1739                 .type   = FIO_OPT_STR_STORE,
1740                 .off1   = offsetof(struct thread_options, ioengine),
1741                 .help   = "IO engine to use",
1742                 .def    = FIO_PREFERRED_ENGINE,
1743                 .category = FIO_OPT_C_IO,
1744                 .group  = FIO_OPT_G_IO_BASIC,
1745                 .posval = {
1746                           { .ival = "sync",
1747                             .help = "Use read/write",
1748                           },
1749                           { .ival = "psync",
1750                             .help = "Use pread/pwrite",
1751                           },
1752                           { .ival = "vsync",
1753                             .help = "Use readv/writev",
1754                           },
1755 #ifdef CONFIG_PWRITEV
1756                           { .ival = "pvsync",
1757                             .help = "Use preadv/pwritev",
1758                           },
1759 #endif
1760 #ifdef FIO_HAVE_PWRITEV2
1761                           { .ival = "pvsync2",
1762                             .help = "Use preadv2/pwritev2",
1763                           },
1764 #endif
1765 #ifdef CONFIG_LIBAIO
1766                           { .ival = "libaio",
1767                             .help = "Linux native asynchronous IO",
1768                           },
1769 #endif
1770 #ifdef CONFIG_POSIXAIO
1771                           { .ival = "posixaio",
1772                             .help = "POSIX asynchronous IO",
1773                           },
1774 #endif
1775 #ifdef CONFIG_SOLARISAIO
1776                           { .ival = "solarisaio",
1777                             .help = "Solaris native asynchronous IO",
1778                           },
1779 #endif
1780 #ifdef CONFIG_WINDOWSAIO
1781                           { .ival = "windowsaio",
1782                             .help = "Windows native asynchronous IO"
1783                           },
1784 #endif
1785 #ifdef CONFIG_RBD
1786                           { .ival = "rbd",
1787                             .help = "Rados Block Device asynchronous IO"
1788                           },
1789 #endif
1790                           { .ival = "mmap",
1791                             .help = "Memory mapped IO"
1792                           },
1793 #ifdef CONFIG_LINUX_SPLICE
1794                           { .ival = "splice",
1795                             .help = "splice/vmsplice based IO",
1796                           },
1797                           { .ival = "netsplice",
1798                             .help = "splice/vmsplice to/from the network",
1799                           },
1800 #endif
1801 #ifdef FIO_HAVE_SGIO
1802                           { .ival = "sg",
1803                             .help = "SCSI generic v3 IO",
1804                           },
1805 #endif
1806                           { .ival = "null",
1807                             .help = "Testing engine (no data transfer)",
1808                           },
1809                           { .ival = "net",
1810                             .help = "Network IO",
1811                           },
1812                           { .ival = "cpuio",
1813                             .help = "CPU cycle burner engine",
1814                           },
1815 #ifdef CONFIG_GUASI
1816                           { .ival = "guasi",
1817                             .help = "GUASI IO engine",
1818                           },
1819 #endif
1820 #ifdef FIO_HAVE_BINJECT
1821                           { .ival = "binject",
1822                             .help = "binject direct inject block engine",
1823                           },
1824 #endif
1825 #ifdef CONFIG_RDMA
1826                           { .ival = "rdma",
1827                             .help = "RDMA IO engine",
1828                           },
1829 #endif
1830 #ifdef CONFIG_FUSION_AW
1831                           { .ival = "fusion-aw-sync",
1832                             .help = "Fusion-io atomic write engine",
1833                           },
1834 #endif
1835 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1836                           { .ival = "e4defrag",
1837                             .help = "ext4 defrag engine",
1838                           },
1839 #endif
1840 #ifdef CONFIG_LINUX_FALLOCATE
1841                           { .ival = "falloc",
1842                             .help = "fallocate() file based engine",
1843                           },
1844 #endif
1845 #ifdef CONFIG_GFAPI
1846                           { .ival = "gfapi",
1847                             .help = "Glusterfs libgfapi(sync) based engine"
1848                           },
1849                           { .ival = "gfapi_async",
1850                             .help = "Glusterfs libgfapi(async) based engine"
1851                           },
1852 #endif
1853 #ifdef CONFIG_LIBHDFS
1854                           { .ival = "libhdfs",
1855                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1856                           },
1857 #endif
1858 #ifdef CONFIG_PMEMBLK
1859                           { .ival = "pmemblk",
1860                             .help = "NVML libpmemblk based IO engine",
1861                           },
1862
1863 #endif
1864 #ifdef CONFIG_LINUX_DEVDAX
1865                           { .ival = "dev-dax",
1866                             .help = "DAX Device based IO engine",
1867                           },
1868 #endif
1869                           {
1870                             .ival = "filecreate",
1871                             .help = "File creation engine",
1872                           },
1873                           { .ival = "external",
1874                             .help = "Load external engine (append name)",
1875                             .cb = str_ioengine_external_cb,
1876                           },
1877 #ifdef CONFIG_LIBPMEM
1878                           { .ival = "libpmem",
1879                             .help = "NVML libpmem based IO engine",
1880                           },
1881 #endif
1882                 },
1883         },
1884         {
1885                 .name   = "iodepth",
1886                 .lname  = "IO Depth",
1887                 .type   = FIO_OPT_INT,
1888                 .off1   = offsetof(struct thread_options, iodepth),
1889                 .help   = "Number of IO buffers to keep in flight",
1890                 .minval = 1,
1891                 .interval = 1,
1892                 .def    = "1",
1893                 .category = FIO_OPT_C_IO,
1894                 .group  = FIO_OPT_G_IO_BASIC,
1895         },
1896         {
1897                 .name   = "iodepth_batch",
1898                 .lname  = "IO Depth batch",
1899                 .alias  = "iodepth_batch_submit",
1900                 .type   = FIO_OPT_INT,
1901                 .off1   = offsetof(struct thread_options, iodepth_batch),
1902                 .help   = "Number of IO buffers to submit in one go",
1903                 .parent = "iodepth",
1904                 .hide   = 1,
1905                 .interval = 1,
1906                 .def    = "1",
1907                 .category = FIO_OPT_C_IO,
1908                 .group  = FIO_OPT_G_IO_BASIC,
1909         },
1910         {
1911                 .name   = "iodepth_batch_complete_min",
1912                 .lname  = "Min IO depth batch complete",
1913                 .alias  = "iodepth_batch_complete",
1914                 .type   = FIO_OPT_INT,
1915                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
1916                 .help   = "Min number of IO buffers to retrieve in one go",
1917                 .parent = "iodepth",
1918                 .hide   = 1,
1919                 .minval = 0,
1920                 .interval = 1,
1921                 .def    = "1",
1922                 .category = FIO_OPT_C_IO,
1923                 .group  = FIO_OPT_G_IO_BASIC,
1924         },
1925         {
1926                 .name   = "iodepth_batch_complete_max",
1927                 .lname  = "Max IO depth batch complete",
1928                 .type   = FIO_OPT_INT,
1929                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
1930                 .help   = "Max number of IO buffers to retrieve in one go",
1931                 .parent = "iodepth",
1932                 .hide   = 1,
1933                 .minval = 0,
1934                 .interval = 1,
1935                 .category = FIO_OPT_C_IO,
1936                 .group  = FIO_OPT_G_IO_BASIC,
1937         },
1938         {
1939                 .name   = "iodepth_low",
1940                 .lname  = "IO Depth batch low",
1941                 .type   = FIO_OPT_INT,
1942                 .off1   = offsetof(struct thread_options, iodepth_low),
1943                 .help   = "Low water mark for queuing depth",
1944                 .parent = "iodepth",
1945                 .hide   = 1,
1946                 .interval = 1,
1947                 .category = FIO_OPT_C_IO,
1948                 .group  = FIO_OPT_G_IO_BASIC,
1949         },
1950         {
1951                 .name   = "serialize_overlap",
1952                 .lname  = "Serialize overlap",
1953                 .off1   = offsetof(struct thread_options, serialize_overlap),
1954                 .type   = FIO_OPT_BOOL,
1955                 .help   = "Wait for in-flight IOs that collide to complete",
1956                 .parent = "iodepth",
1957                 .def    = "0",
1958                 .category = FIO_OPT_C_IO,
1959                 .group  = FIO_OPT_G_IO_BASIC,
1960         },
1961         {
1962                 .name   = "io_submit_mode",
1963                 .lname  = "IO submit mode",
1964                 .type   = FIO_OPT_STR,
1965                 .off1   = offsetof(struct thread_options, io_submit_mode),
1966                 .help   = "How IO submissions and completions are done",
1967                 .def    = "inline",
1968                 .category = FIO_OPT_C_IO,
1969                 .group  = FIO_OPT_G_IO_BASIC,
1970                 .posval = {
1971                           { .ival = "inline",
1972                             .oval = IO_MODE_INLINE,
1973                             .help = "Submit and complete IO inline",
1974                           },
1975                           { .ival = "offload",
1976                             .oval = IO_MODE_OFFLOAD,
1977                             .help = "Offload submit and complete to threads",
1978                           },
1979                 },
1980         },
1981         {
1982                 .name   = "size",
1983                 .lname  = "Size",
1984                 .type   = FIO_OPT_STR_VAL,
1985                 .cb     = str_size_cb,
1986                 .off1   = offsetof(struct thread_options, size),
1987                 .help   = "Total size of device or files",
1988                 .interval = 1024 * 1024,
1989                 .category = FIO_OPT_C_IO,
1990                 .group  = FIO_OPT_G_INVALID,
1991         },
1992         {
1993                 .name   = "io_size",
1994                 .alias  = "io_limit",
1995                 .lname  = "IO Size",
1996                 .type   = FIO_OPT_STR_VAL,
1997                 .off1   = offsetof(struct thread_options, io_size),
1998                 .help   = "Total size of I/O to be performed",
1999                 .interval = 1024 * 1024,
2000                 .category = FIO_OPT_C_IO,
2001                 .group  = FIO_OPT_G_INVALID,
2002         },
2003         {
2004                 .name   = "fill_device",
2005                 .lname  = "Fill device",
2006                 .alias  = "fill_fs",
2007                 .type   = FIO_OPT_BOOL,
2008                 .off1   = offsetof(struct thread_options, fill_device),
2009                 .help   = "Write until an ENOSPC error occurs",
2010                 .def    = "0",
2011                 .category = FIO_OPT_C_FILE,
2012                 .group  = FIO_OPT_G_INVALID,
2013         },
2014         {
2015                 .name   = "filesize",
2016                 .lname  = "File size",
2017                 .type   = FIO_OPT_STR_VAL,
2018                 .off1   = offsetof(struct thread_options, file_size_low),
2019                 .off2   = offsetof(struct thread_options, file_size_high),
2020                 .minval = 1,
2021                 .help   = "Size of individual files",
2022                 .interval = 1024 * 1024,
2023                 .category = FIO_OPT_C_FILE,
2024                 .group  = FIO_OPT_G_INVALID,
2025         },
2026         {
2027                 .name   = "file_append",
2028                 .lname  = "File append",
2029                 .type   = FIO_OPT_BOOL,
2030                 .off1   = offsetof(struct thread_options, file_append),
2031                 .help   = "IO will start at the end of the file(s)",
2032                 .def    = "0",
2033                 .category = FIO_OPT_C_FILE,
2034                 .group  = FIO_OPT_G_INVALID,
2035         },
2036         {
2037                 .name   = "offset",
2038                 .lname  = "IO offset",
2039                 .alias  = "fileoffset",
2040                 .type   = FIO_OPT_STR_VAL,
2041                 .cb     = str_offset_cb,
2042                 .off1   = offsetof(struct thread_options, start_offset),
2043                 .help   = "Start IO from this offset",
2044                 .def    = "0",
2045                 .interval = 1024 * 1024,
2046                 .category = FIO_OPT_C_IO,
2047                 .group  = FIO_OPT_G_INVALID,
2048         },
2049         {
2050                 .name   = "offset_align",
2051                 .lname  = "IO offset alignment",
2052                 .type   = FIO_OPT_INT,
2053                 .off1   = offsetof(struct thread_options, start_offset_align),
2054                 .help   = "Start IO from this offset alignment",
2055                 .def    = "0",
2056                 .interval = 512,
2057                 .category = FIO_OPT_C_IO,
2058                 .group  = FIO_OPT_G_INVALID,
2059         },
2060         {
2061                 .name   = "offset_increment",
2062                 .lname  = "IO offset increment",
2063                 .type   = FIO_OPT_STR_VAL,
2064                 .off1   = offsetof(struct thread_options, offset_increment),
2065                 .help   = "What is the increment from one offset to the next",
2066                 .parent = "offset",
2067                 .hide   = 1,
2068                 .def    = "0",
2069                 .interval = 1024 * 1024,
2070                 .category = FIO_OPT_C_IO,
2071                 .group  = FIO_OPT_G_INVALID,
2072         },
2073         {
2074                 .name   = "number_ios",
2075                 .lname  = "Number of IOs to perform",
2076                 .type   = FIO_OPT_STR_VAL,
2077                 .off1   = offsetof(struct thread_options, number_ios),
2078                 .help   = "Force job completion after this number of IOs",
2079                 .def    = "0",
2080                 .category = FIO_OPT_C_IO,
2081                 .group  = FIO_OPT_G_INVALID,
2082         },
2083         {
2084                 .name   = "bs",
2085                 .lname  = "Block size",
2086                 .alias  = "blocksize",
2087                 .type   = FIO_OPT_INT,
2088                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2089                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2090                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2091                 .minval = 1,
2092                 .help   = "Block size unit",
2093                 .def    = "4096",
2094                 .parent = "rw",
2095                 .hide   = 1,
2096                 .interval = 512,
2097                 .category = FIO_OPT_C_IO,
2098                 .group  = FIO_OPT_G_INVALID,
2099         },
2100         {
2101                 .name   = "ba",
2102                 .lname  = "Block size align",
2103                 .alias  = "blockalign",
2104                 .type   = FIO_OPT_INT,
2105                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2106                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2107                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2108                 .minval = 1,
2109                 .help   = "IO block offset alignment",
2110                 .parent = "rw",
2111                 .hide   = 1,
2112                 .interval = 512,
2113                 .category = FIO_OPT_C_IO,
2114                 .group  = FIO_OPT_G_INVALID,
2115         },
2116         {
2117                 .name   = "bsrange",
2118                 .lname  = "Block size range",
2119                 .alias  = "blocksize_range",
2120                 .type   = FIO_OPT_RANGE,
2121                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2122                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2123                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2124                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2125                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2126                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2127                 .minval = 1,
2128                 .help   = "Set block size range (in more detail than bs)",
2129                 .parent = "rw",
2130                 .hide   = 1,
2131                 .interval = 4096,
2132                 .category = FIO_OPT_C_IO,
2133                 .group  = FIO_OPT_G_INVALID,
2134         },
2135         {
2136                 .name   = "bssplit",
2137                 .lname  = "Block size split",
2138                 .type   = FIO_OPT_STR,
2139                 .cb     = str_bssplit_cb,
2140                 .off1   = offsetof(struct thread_options, bssplit),
2141                 .help   = "Set a specific mix of block sizes",
2142                 .parent = "rw",
2143                 .hide   = 1,
2144                 .category = FIO_OPT_C_IO,
2145                 .group  = FIO_OPT_G_INVALID,
2146         },
2147         {
2148                 .name   = "bs_unaligned",
2149                 .lname  = "Block size unaligned",
2150                 .alias  = "blocksize_unaligned",
2151                 .type   = FIO_OPT_STR_SET,
2152                 .off1   = offsetof(struct thread_options, bs_unaligned),
2153                 .help   = "Don't sector align IO buffer sizes",
2154                 .parent = "rw",
2155                 .hide   = 1,
2156                 .category = FIO_OPT_C_IO,
2157                 .group  = FIO_OPT_G_INVALID,
2158         },
2159         {
2160                 .name   = "bs_is_seq_rand",
2161                 .lname  = "Block size division is seq/random (not read/write)",
2162                 .type   = FIO_OPT_BOOL,
2163                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2164                 .help   = "Consider any blocksize setting to be sequential,random",
2165                 .def    = "0",
2166                 .parent = "blocksize",
2167                 .category = FIO_OPT_C_IO,
2168                 .group  = FIO_OPT_G_INVALID,
2169         },
2170         {
2171                 .name   = "randrepeat",
2172                 .lname  = "Random repeatable",
2173                 .type   = FIO_OPT_BOOL,
2174                 .off1   = offsetof(struct thread_options, rand_repeatable),
2175                 .help   = "Use repeatable random IO pattern",
2176                 .def    = "1",
2177                 .parent = "rw",
2178                 .hide   = 1,
2179                 .category = FIO_OPT_C_IO,
2180                 .group  = FIO_OPT_G_RANDOM,
2181         },
2182         {
2183                 .name   = "randseed",
2184                 .lname  = "The random generator seed",
2185                 .type   = FIO_OPT_STR_VAL,
2186                 .off1   = offsetof(struct thread_options, rand_seed),
2187                 .help   = "Set the random generator seed value",
2188                 .def    = "0x89",
2189                 .parent = "rw",
2190                 .category = FIO_OPT_C_IO,
2191                 .group  = FIO_OPT_G_RANDOM,
2192         },
2193         {
2194                 .name   = "use_os_rand",
2195                 .lname  = "Use OS random",
2196                 .type   = FIO_OPT_DEPRECATED,
2197                 .off1   = offsetof(struct thread_options, dep_use_os_rand),
2198                 .category = FIO_OPT_C_IO,
2199                 .group  = FIO_OPT_G_RANDOM,
2200         },
2201         {
2202                 .name   = "norandommap",
2203                 .lname  = "No randommap",
2204                 .type   = FIO_OPT_STR_SET,
2205                 .off1   = offsetof(struct thread_options, norandommap),
2206                 .help   = "Accept potential duplicate random blocks",
2207                 .parent = "rw",
2208                 .hide   = 1,
2209                 .hide_on_set = 1,
2210                 .category = FIO_OPT_C_IO,
2211                 .group  = FIO_OPT_G_RANDOM,
2212         },
2213         {
2214                 .name   = "softrandommap",
2215                 .lname  = "Soft randommap",
2216                 .type   = FIO_OPT_BOOL,
2217                 .off1   = offsetof(struct thread_options, softrandommap),
2218                 .help   = "Set norandommap if randommap allocation fails",
2219                 .parent = "norandommap",
2220                 .hide   = 1,
2221                 .def    = "0",
2222                 .category = FIO_OPT_C_IO,
2223                 .group  = FIO_OPT_G_RANDOM,
2224         },
2225         {
2226                 .name   = "random_generator",
2227                 .lname  = "Random Generator",
2228                 .type   = FIO_OPT_STR,
2229                 .off1   = offsetof(struct thread_options, random_generator),
2230                 .help   = "Type of random number generator to use",
2231                 .def    = "tausworthe",
2232                 .posval = {
2233                           { .ival = "tausworthe",
2234                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2235                             .help = "Strong Tausworthe generator",
2236                           },
2237                           { .ival = "lfsr",
2238                             .oval = FIO_RAND_GEN_LFSR,
2239                             .help = "Variable length LFSR",
2240                           },
2241                           {
2242                             .ival = "tausworthe64",
2243                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2244                             .help = "64-bit Tausworthe variant",
2245                           },
2246                 },
2247                 .category = FIO_OPT_C_IO,
2248                 .group  = FIO_OPT_G_RANDOM,
2249         },
2250         {
2251                 .name   = "random_distribution",
2252                 .lname  = "Random Distribution",
2253                 .type   = FIO_OPT_STR,
2254                 .off1   = offsetof(struct thread_options, random_distribution),
2255                 .cb     = str_random_distribution_cb,
2256                 .help   = "Random offset distribution generator",
2257                 .def    = "random",
2258                 .posval = {
2259                           { .ival = "random",
2260                             .oval = FIO_RAND_DIST_RANDOM,
2261                             .help = "Completely random",
2262                           },
2263                           { .ival = "zipf",
2264                             .oval = FIO_RAND_DIST_ZIPF,
2265                             .help = "Zipf distribution",
2266                           },
2267                           { .ival = "pareto",
2268                             .oval = FIO_RAND_DIST_PARETO,
2269                             .help = "Pareto distribution",
2270                           },
2271                           { .ival = "normal",
2272                             .oval = FIO_RAND_DIST_GAUSS,
2273                             .help = "Normal (Gaussian) distribution",
2274                           },
2275                           { .ival = "zoned",
2276                             .oval = FIO_RAND_DIST_ZONED,
2277                             .help = "Zoned random distribution",
2278                           },
2279                           { .ival = "zoned_abs",
2280                             .oval = FIO_RAND_DIST_ZONED_ABS,
2281                             .help = "Zoned absolute random distribution",
2282                           },
2283                 },
2284                 .category = FIO_OPT_C_IO,
2285                 .group  = FIO_OPT_G_RANDOM,
2286         },
2287         {
2288                 .name   = "percentage_random",
2289                 .lname  = "Percentage Random",
2290                 .type   = FIO_OPT_INT,
2291                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2292                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2293                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2294                 .maxval = 100,
2295                 .help   = "Percentage of seq/random mix that should be random",
2296                 .def    = "100,100,100",
2297                 .interval = 5,
2298                 .inverse = "percentage_sequential",
2299                 .category = FIO_OPT_C_IO,
2300                 .group  = FIO_OPT_G_RANDOM,
2301         },
2302         {
2303                 .name   = "percentage_sequential",
2304                 .lname  = "Percentage Sequential",
2305                 .type   = FIO_OPT_DEPRECATED,
2306                 .category = FIO_OPT_C_IO,
2307                 .group  = FIO_OPT_G_RANDOM,
2308         },
2309         {
2310                 .name   = "allrandrepeat",
2311                 .lname  = "All Random Repeat",
2312                 .type   = FIO_OPT_BOOL,
2313                 .off1   = offsetof(struct thread_options, allrand_repeatable),
2314                 .help   = "Use repeatable random numbers for everything",
2315                 .def    = "0",
2316                 .category = FIO_OPT_C_IO,
2317                 .group  = FIO_OPT_G_RANDOM,
2318         },
2319         {
2320                 .name   = "nrfiles",
2321                 .lname  = "Number of files",
2322                 .alias  = "nr_files",
2323                 .type   = FIO_OPT_INT,
2324                 .off1   = offsetof(struct thread_options, nr_files),
2325                 .help   = "Split job workload between this number of files",
2326                 .def    = "1",
2327                 .interval = 1,
2328                 .category = FIO_OPT_C_FILE,
2329                 .group  = FIO_OPT_G_INVALID,
2330         },
2331         {
2332                 .name   = "openfiles",
2333                 .lname  = "Number of open files",
2334                 .type   = FIO_OPT_INT,
2335                 .off1   = offsetof(struct thread_options, open_files),
2336                 .help   = "Number of files to keep open at the same time",
2337                 .category = FIO_OPT_C_FILE,
2338                 .group  = FIO_OPT_G_INVALID,
2339         },
2340         {
2341                 .name   = "file_service_type",
2342                 .lname  = "File service type",
2343                 .type   = FIO_OPT_STR,
2344                 .cb     = str_fst_cb,
2345                 .off1   = offsetof(struct thread_options, file_service_type),
2346                 .help   = "How to select which file to service next",
2347                 .def    = "roundrobin",
2348                 .category = FIO_OPT_C_FILE,
2349                 .group  = FIO_OPT_G_INVALID,
2350                 .posval = {
2351                           { .ival = "random",
2352                             .oval = FIO_FSERVICE_RANDOM,
2353                             .help = "Choose a file at random (uniform)",
2354                           },
2355                           { .ival = "zipf",
2356                             .oval = FIO_FSERVICE_ZIPF,
2357                             .help = "Zipf randomized",
2358                           },
2359                           { .ival = "pareto",
2360                             .oval = FIO_FSERVICE_PARETO,
2361                             .help = "Pareto randomized",
2362                           },
2363                           { .ival = "normal",
2364                             .oval = FIO_FSERVICE_GAUSS,
2365                             .help = "Normal (Gaussian) randomized",
2366                           },
2367                           { .ival = "gauss",
2368                             .oval = FIO_FSERVICE_GAUSS,
2369                             .help = "Alias for normal",
2370                           },
2371                           { .ival = "roundrobin",
2372                             .oval = FIO_FSERVICE_RR,
2373                             .help = "Round robin select files",
2374                           },
2375                           { .ival = "sequential",
2376                             .oval = FIO_FSERVICE_SEQ,
2377                             .help = "Finish one file before moving to the next",
2378                           },
2379                 },
2380                 .parent = "nrfiles",
2381                 .hide   = 1,
2382         },
2383 #ifdef FIO_HAVE_ANY_FALLOCATE
2384         {
2385                 .name   = "fallocate",
2386                 .lname  = "Fallocate",
2387                 .type   = FIO_OPT_STR,
2388                 .off1   = offsetof(struct thread_options, fallocate_mode),
2389                 .help   = "Whether pre-allocation is performed when laying out files",
2390                 .def    = "native",
2391                 .category = FIO_OPT_C_FILE,
2392                 .group  = FIO_OPT_G_INVALID,
2393                 .posval = {
2394                           { .ival = "none",
2395                             .oval = FIO_FALLOCATE_NONE,
2396                             .help = "Do not pre-allocate space",
2397                           },
2398                           { .ival = "native",
2399                             .oval = FIO_FALLOCATE_NATIVE,
2400                             .help = "Use native pre-allocation if possible",
2401                           },
2402 #ifdef CONFIG_POSIX_FALLOCATE
2403                           { .ival = "posix",
2404                             .oval = FIO_FALLOCATE_POSIX,
2405                             .help = "Use posix_fallocate()",
2406                           },
2407 #endif
2408 #ifdef CONFIG_LINUX_FALLOCATE
2409                           { .ival = "keep",
2410                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2411                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2412                           },
2413 #endif
2414                           /* Compatibility with former boolean values */
2415                           { .ival = "0",
2416                             .oval = FIO_FALLOCATE_NONE,
2417                             .help = "Alias for 'none'",
2418                           },
2419 #ifdef CONFIG_POSIX_FALLOCATE
2420                           { .ival = "1",
2421                             .oval = FIO_FALLOCATE_POSIX,
2422                             .help = "Alias for 'posix'",
2423                           },
2424 #endif
2425                 },
2426         },
2427 #else   /* FIO_HAVE_ANY_FALLOCATE */
2428         {
2429                 .name   = "fallocate",
2430                 .lname  = "Fallocate",
2431                 .type   = FIO_OPT_UNSUPPORTED,
2432                 .help   = "Your platform does not support fallocate",
2433         },
2434 #endif /* FIO_HAVE_ANY_FALLOCATE */
2435         {
2436                 .name   = "fadvise_hint",
2437                 .lname  = "Fadvise hint",
2438                 .type   = FIO_OPT_STR,
2439                 .off1   = offsetof(struct thread_options, fadvise_hint),
2440                 .posval = {
2441                           { .ival = "0",
2442                             .oval = F_ADV_NONE,
2443                             .help = "Don't issue fadvise",
2444                           },
2445                           { .ival = "1",
2446                             .oval = F_ADV_TYPE,
2447                             .help = "Advise using fio IO pattern",
2448                           },
2449                           { .ival = "random",
2450                             .oval = F_ADV_RANDOM,
2451                             .help = "Advise using FADV_RANDOM",
2452                           },
2453                           { .ival = "sequential",
2454                             .oval = F_ADV_SEQUENTIAL,
2455                             .help = "Advise using FADV_SEQUENTIAL",
2456                           },
2457                 },
2458                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2459                 .def    = "1",
2460                 .category = FIO_OPT_C_FILE,
2461                 .group  = FIO_OPT_G_INVALID,
2462         },
2463         {
2464                 .name   = "fsync",
2465                 .lname  = "Fsync",
2466                 .type   = FIO_OPT_INT,
2467                 .off1   = offsetof(struct thread_options, fsync_blocks),
2468                 .help   = "Issue fsync for writes every given number of blocks",
2469                 .def    = "0",
2470                 .interval = 1,
2471                 .category = FIO_OPT_C_FILE,
2472                 .group  = FIO_OPT_G_INVALID,
2473         },
2474         {
2475                 .name   = "fdatasync",
2476                 .lname  = "Fdatasync",
2477                 .type   = FIO_OPT_INT,
2478                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2479                 .help   = "Issue fdatasync for writes every given number of blocks",
2480                 .def    = "0",
2481                 .interval = 1,
2482                 .category = FIO_OPT_C_FILE,
2483                 .group  = FIO_OPT_G_INVALID,
2484         },
2485         {
2486                 .name   = "write_barrier",
2487                 .lname  = "Write barrier",
2488                 .type   = FIO_OPT_INT,
2489                 .off1   = offsetof(struct thread_options, barrier_blocks),
2490                 .help   = "Make every Nth write a barrier write",
2491                 .def    = "0",
2492                 .interval = 1,
2493                 .category = FIO_OPT_C_IO,
2494                 .group  = FIO_OPT_G_INVALID,
2495         },
2496 #ifdef CONFIG_SYNC_FILE_RANGE
2497         {
2498                 .name   = "sync_file_range",
2499                 .lname  = "Sync file range",
2500                 .posval = {
2501                           { .ival = "wait_before",
2502                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2503                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2504                             .orval  = 1,
2505                           },
2506                           { .ival = "write",
2507                             .oval = SYNC_FILE_RANGE_WRITE,
2508                             .help = "SYNC_FILE_RANGE_WRITE",
2509                             .orval  = 1,
2510                           },
2511                           {
2512                             .ival = "wait_after",
2513                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2514                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2515                             .orval  = 1,
2516                           },
2517                 },
2518                 .type   = FIO_OPT_STR_MULTI,
2519                 .cb     = str_sfr_cb,
2520                 .off1   = offsetof(struct thread_options, sync_file_range),
2521                 .help   = "Use sync_file_range()",
2522                 .category = FIO_OPT_C_FILE,
2523                 .group  = FIO_OPT_G_INVALID,
2524         },
2525 #else
2526         {
2527                 .name   = "sync_file_range",
2528                 .lname  = "Sync file range",
2529                 .type   = FIO_OPT_UNSUPPORTED,
2530                 .help   = "Your platform does not support sync_file_range",
2531         },
2532 #endif
2533         {
2534                 .name   = "direct",
2535                 .lname  = "Direct I/O",
2536                 .type   = FIO_OPT_BOOL,
2537                 .off1   = offsetof(struct thread_options, odirect),
2538                 .help   = "Use O_DIRECT IO (negates buffered)",
2539                 .def    = "0",
2540                 .inverse = "buffered",
2541                 .category = FIO_OPT_C_IO,
2542                 .group  = FIO_OPT_G_IO_TYPE,
2543         },
2544         {
2545                 .name   = "atomic",
2546                 .lname  = "Atomic I/O",
2547                 .type   = FIO_OPT_BOOL,
2548                 .off1   = offsetof(struct thread_options, oatomic),
2549                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2550                 .def    = "0",
2551                 .category = FIO_OPT_C_IO,
2552                 .group  = FIO_OPT_G_IO_TYPE,
2553         },
2554         {
2555                 .name   = "buffered",
2556                 .lname  = "Buffered I/O",
2557                 .type   = FIO_OPT_BOOL,
2558                 .off1   = offsetof(struct thread_options, odirect),
2559                 .neg    = 1,
2560                 .help   = "Use buffered IO (negates direct)",
2561                 .def    = "1",
2562                 .inverse = "direct",
2563                 .category = FIO_OPT_C_IO,
2564                 .group  = FIO_OPT_G_IO_TYPE,
2565         },
2566         {
2567                 .name   = "overwrite",
2568                 .lname  = "Overwrite",
2569                 .type   = FIO_OPT_BOOL,
2570                 .off1   = offsetof(struct thread_options, overwrite),
2571                 .help   = "When writing, set whether to overwrite current data",
2572                 .def    = "0",
2573                 .category = FIO_OPT_C_FILE,
2574                 .group  = FIO_OPT_G_INVALID,
2575         },
2576         {
2577                 .name   = "loops",
2578                 .lname  = "Loops",
2579                 .type   = FIO_OPT_INT,
2580                 .off1   = offsetof(struct thread_options, loops),
2581                 .help   = "Number of times to run the job",
2582                 .def    = "1",
2583                 .interval = 1,
2584                 .category = FIO_OPT_C_GENERAL,
2585                 .group  = FIO_OPT_G_RUNTIME,
2586         },
2587         {
2588                 .name   = "numjobs",
2589                 .lname  = "Number of jobs",
2590                 .type   = FIO_OPT_INT,
2591                 .off1   = offsetof(struct thread_options, numjobs),
2592                 .help   = "Duplicate this job this many times",
2593                 .def    = "1",
2594                 .interval = 1,
2595                 .category = FIO_OPT_C_GENERAL,
2596                 .group  = FIO_OPT_G_RUNTIME,
2597         },
2598         {
2599                 .name   = "startdelay",
2600                 .lname  = "Start delay",
2601                 .type   = FIO_OPT_STR_VAL_TIME,
2602                 .off1   = offsetof(struct thread_options, start_delay),
2603                 .off2   = offsetof(struct thread_options, start_delay_high),
2604                 .help   = "Only start job when this period has passed",
2605                 .def    = "0",
2606                 .is_seconds = 1,
2607                 .is_time = 1,
2608                 .category = FIO_OPT_C_GENERAL,
2609                 .group  = FIO_OPT_G_RUNTIME,
2610         },
2611         {
2612                 .name   = "runtime",
2613                 .lname  = "Runtime",
2614                 .alias  = "timeout",
2615                 .type   = FIO_OPT_STR_VAL_TIME,
2616                 .off1   = offsetof(struct thread_options, timeout),
2617                 .help   = "Stop workload when this amount of time has passed",
2618                 .def    = "0",
2619                 .is_seconds = 1,
2620                 .is_time = 1,
2621                 .category = FIO_OPT_C_GENERAL,
2622                 .group  = FIO_OPT_G_RUNTIME,
2623         },
2624         {
2625                 .name   = "time_based",
2626                 .lname  = "Time based",
2627                 .type   = FIO_OPT_STR_SET,
2628                 .off1   = offsetof(struct thread_options, time_based),
2629                 .help   = "Keep running until runtime/timeout is met",
2630                 .category = FIO_OPT_C_GENERAL,
2631                 .group  = FIO_OPT_G_RUNTIME,
2632         },
2633         {
2634                 .name   = "verify_only",
2635                 .lname  = "Verify only",
2636                 .type   = FIO_OPT_STR_SET,
2637                 .off1   = offsetof(struct thread_options, verify_only),
2638                 .help   = "Verifies previously written data is still valid",
2639                 .category = FIO_OPT_C_GENERAL,
2640                 .group  = FIO_OPT_G_RUNTIME,
2641         },
2642         {
2643                 .name   = "ramp_time",
2644                 .lname  = "Ramp time",
2645                 .type   = FIO_OPT_STR_VAL_TIME,
2646                 .off1   = offsetof(struct thread_options, ramp_time),
2647                 .help   = "Ramp up time before measuring performance",
2648                 .is_seconds = 1,
2649                 .is_time = 1,
2650                 .category = FIO_OPT_C_GENERAL,
2651                 .group  = FIO_OPT_G_RUNTIME,
2652         },
2653         {
2654                 .name   = "clocksource",
2655                 .lname  = "Clock source",
2656                 .type   = FIO_OPT_STR,
2657                 .cb     = fio_clock_source_cb,
2658                 .off1   = offsetof(struct thread_options, clocksource),
2659                 .help   = "What type of timing source to use",
2660                 .category = FIO_OPT_C_GENERAL,
2661                 .group  = FIO_OPT_G_CLOCK,
2662                 .posval = {
2663 #ifdef CONFIG_GETTIMEOFDAY
2664                           { .ival = "gettimeofday",
2665                             .oval = CS_GTOD,
2666                             .help = "Use gettimeofday(2) for timing",
2667                           },
2668 #endif
2669 #ifdef CONFIG_CLOCK_GETTIME
2670                           { .ival = "clock_gettime",
2671                             .oval = CS_CGETTIME,
2672                             .help = "Use clock_gettime(2) for timing",
2673                           },
2674 #endif
2675 #ifdef ARCH_HAVE_CPU_CLOCK
2676                           { .ival = "cpu",
2677                             .oval = CS_CPUCLOCK,
2678                             .help = "Use CPU private clock",
2679                           },
2680 #endif
2681                 },
2682         },
2683         {
2684                 .name   = "mem",
2685                 .alias  = "iomem",
2686                 .lname  = "I/O Memory",
2687                 .type   = FIO_OPT_STR,
2688                 .cb     = str_mem_cb,
2689                 .off1   = offsetof(struct thread_options, mem_type),
2690                 .help   = "Backing type for IO buffers",
2691                 .def    = "malloc",
2692                 .category = FIO_OPT_C_IO,
2693                 .group  = FIO_OPT_G_INVALID,
2694                 .posval = {
2695                           { .ival = "malloc",
2696                             .oval = MEM_MALLOC,
2697                             .help = "Use malloc(3) for IO buffers",
2698                           },
2699 #ifndef CONFIG_NO_SHM
2700                           { .ival = "shm",
2701                             .oval = MEM_SHM,
2702                             .help = "Use shared memory segments for IO buffers",
2703                           },
2704 #ifdef FIO_HAVE_HUGETLB
2705                           { .ival = "shmhuge",
2706                             .oval = MEM_SHMHUGE,
2707                             .help = "Like shm, but use huge pages",
2708                           },
2709 #endif
2710 #endif
2711                           { .ival = "mmap",
2712                             .oval = MEM_MMAP,
2713                             .help = "Use mmap(2) (file or anon) for IO buffers",
2714                           },
2715                           { .ival = "mmapshared",
2716                             .oval = MEM_MMAPSHARED,
2717                             .help = "Like mmap, but use the shared flag",
2718                           },
2719 #ifdef FIO_HAVE_HUGETLB
2720                           { .ival = "mmaphuge",
2721                             .oval = MEM_MMAPHUGE,
2722                             .help = "Like mmap, but use huge pages",
2723                           },
2724 #endif
2725 #ifdef CONFIG_CUDA
2726                           { .ival = "cudamalloc",
2727                             .oval = MEM_CUDA_MALLOC,
2728                             .help = "Allocate GPU device memory for GPUDirect RDMA",
2729                           },
2730 #endif
2731                   },
2732         },
2733         {
2734                 .name   = "iomem_align",
2735                 .alias  = "mem_align",
2736                 .lname  = "I/O memory alignment",
2737                 .type   = FIO_OPT_INT,
2738                 .off1   = offsetof(struct thread_options, mem_align),
2739                 .minval = 0,
2740                 .help   = "IO memory buffer offset alignment",
2741                 .def    = "0",
2742                 .parent = "iomem",
2743                 .hide   = 1,
2744                 .category = FIO_OPT_C_IO,
2745                 .group  = FIO_OPT_G_INVALID,
2746         },
2747         {
2748                 .name   = "verify",
2749                 .lname  = "Verify",
2750                 .type   = FIO_OPT_STR,
2751                 .off1   = offsetof(struct thread_options, verify),
2752                 .help   = "Verify data written",
2753                 .def    = "0",
2754                 .category = FIO_OPT_C_IO,
2755                 .group  = FIO_OPT_G_VERIFY,
2756                 .posval = {
2757                           { .ival = "0",
2758                             .oval = VERIFY_NONE,
2759                             .help = "Don't do IO verification",
2760                           },
2761                           { .ival = "md5",
2762                             .oval = VERIFY_MD5,
2763                             .help = "Use md5 checksums for verification",
2764                           },
2765                           { .ival = "crc64",
2766                             .oval = VERIFY_CRC64,
2767                             .help = "Use crc64 checksums for verification",
2768                           },
2769                           { .ival = "crc32",
2770                             .oval = VERIFY_CRC32,
2771                             .help = "Use crc32 checksums for verification",
2772                           },
2773                           { .ival = "crc32c-intel",
2774                             .oval = VERIFY_CRC32C,
2775                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2776                           },
2777                           { .ival = "crc32c",
2778                             .oval = VERIFY_CRC32C,
2779                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2780                           },
2781                           { .ival = "crc16",
2782                             .oval = VERIFY_CRC16,
2783                             .help = "Use crc16 checksums for verification",
2784                           },
2785                           { .ival = "crc7",
2786                             .oval = VERIFY_CRC7,
2787                             .help = "Use crc7 checksums for verification",
2788                           },
2789                           { .ival = "sha1",
2790                             .oval = VERIFY_SHA1,
2791                             .help = "Use sha1 checksums for verification",
2792                           },
2793                           { .ival = "sha256",
2794                             .oval = VERIFY_SHA256,
2795                             .help = "Use sha256 checksums for verification",
2796                           },
2797                           { .ival = "sha512",
2798                             .oval = VERIFY_SHA512,
2799                             .help = "Use sha512 checksums for verification",
2800                           },
2801                           { .ival = "sha3-224",
2802                             .oval = VERIFY_SHA3_224,
2803                             .help = "Use sha3-224 checksums for verification",
2804                           },
2805                           { .ival = "sha3-256",
2806                             .oval = VERIFY_SHA3_256,
2807                             .help = "Use sha3-256 checksums for verification",
2808                           },
2809                           { .ival = "sha3-384",
2810                             .oval = VERIFY_SHA3_384,
2811                             .help = "Use sha3-384 checksums for verification",
2812                           },
2813                           { .ival = "sha3-512",
2814                             .oval = VERIFY_SHA3_512,
2815                             .help = "Use sha3-512 checksums for verification",
2816                           },
2817                           { .ival = "xxhash",
2818                             .oval = VERIFY_XXHASH,
2819                             .help = "Use xxhash checksums for verification",
2820                           },
2821                           /* Meta information was included into verify_header,
2822                            * 'meta' verification is implied by default. */
2823                           { .ival = "meta",
2824                             .oval = VERIFY_HDR_ONLY,
2825                             .help = "Use io information for verification. "
2826                                     "Now is implied by default, thus option is obsolete, "
2827                                     "don't use it",
2828                           },
2829                           { .ival = "pattern",
2830                             .oval = VERIFY_PATTERN_NO_HDR,
2831                             .help = "Verify strict pattern",
2832                           },
2833                           {
2834                             .ival = "null",
2835                             .oval = VERIFY_NULL,
2836                             .help = "Pretend to verify",
2837                           },
2838                 },
2839         },
2840         {
2841                 .name   = "do_verify",
2842                 .lname  = "Perform verify step",
2843                 .type   = FIO_OPT_BOOL,
2844                 .off1   = offsetof(struct thread_options, do_verify),
2845                 .help   = "Run verification stage after write",
2846                 .def    = "1",
2847                 .parent = "verify",
2848                 .hide   = 1,
2849                 .category = FIO_OPT_C_IO,
2850                 .group  = FIO_OPT_G_VERIFY,
2851         },
2852         {
2853                 .name   = "verifysort",
2854                 .lname  = "Verify sort",
2855                 .type   = FIO_OPT_BOOL,
2856                 .off1   = offsetof(struct thread_options, verifysort),
2857                 .help   = "Sort written verify blocks for read back",
2858                 .def    = "1",
2859                 .parent = "verify",
2860                 .hide   = 1,
2861                 .category = FIO_OPT_C_IO,
2862                 .group  = FIO_OPT_G_VERIFY,
2863         },
2864         {
2865                 .name   = "verifysort_nr",
2866                 .lname  = "Verify Sort Nr",
2867                 .type   = FIO_OPT_INT,
2868                 .off1   = offsetof(struct thread_options, verifysort_nr),
2869                 .help   = "Pre-load and sort verify blocks for a read workload",
2870                 .minval = 0,
2871                 .maxval = 131072,
2872                 .def    = "1024",
2873                 .parent = "verify",
2874                 .category = FIO_OPT_C_IO,
2875                 .group  = FIO_OPT_G_VERIFY,
2876         },
2877         {
2878                 .name   = "verify_interval",
2879                 .lname  = "Verify interval",
2880                 .type   = FIO_OPT_INT,
2881                 .off1   = offsetof(struct thread_options, verify_interval),
2882                 .minval = 2 * sizeof(struct verify_header),
2883                 .help   = "Store verify buffer header every N bytes",
2884                 .parent = "verify",
2885                 .hide   = 1,
2886                 .interval = 2 * sizeof(struct verify_header),
2887                 .category = FIO_OPT_C_IO,
2888                 .group  = FIO_OPT_G_VERIFY,
2889         },
2890         {
2891                 .name   = "verify_offset",
2892                 .lname  = "Verify offset",
2893                 .type   = FIO_OPT_INT,
2894                 .help   = "Offset verify header location by N bytes",
2895                 .off1   = offsetof(struct thread_options, verify_offset),
2896                 .minval = sizeof(struct verify_header),
2897                 .parent = "verify",
2898                 .hide   = 1,
2899                 .category = FIO_OPT_C_IO,
2900                 .group  = FIO_OPT_G_VERIFY,
2901         },
2902         {
2903                 .name   = "verify_pattern",
2904                 .lname  = "Verify pattern",
2905                 .type   = FIO_OPT_STR,
2906                 .cb     = str_verify_pattern_cb,
2907                 .off1   = offsetof(struct thread_options, verify_pattern),
2908                 .help   = "Fill pattern for IO buffers",
2909                 .parent = "verify",
2910                 .hide   = 1,
2911                 .category = FIO_OPT_C_IO,
2912                 .group  = FIO_OPT_G_VERIFY,
2913         },
2914         {
2915                 .name   = "verify_fatal",
2916                 .lname  = "Verify fatal",
2917                 .type   = FIO_OPT_BOOL,
2918                 .off1   = offsetof(struct thread_options, verify_fatal),
2919                 .def    = "0",
2920                 .help   = "Exit on a single verify failure, don't continue",
2921                 .parent = "verify",
2922                 .hide   = 1,
2923                 .category = FIO_OPT_C_IO,
2924                 .group  = FIO_OPT_G_VERIFY,
2925         },
2926         {
2927                 .name   = "verify_dump",
2928                 .lname  = "Verify dump",
2929                 .type   = FIO_OPT_BOOL,
2930                 .off1   = offsetof(struct thread_options, verify_dump),
2931                 .def    = "0",
2932                 .help   = "Dump contents of good and bad blocks on failure",
2933                 .parent = "verify",
2934                 .hide   = 1,
2935                 .category = FIO_OPT_C_IO,
2936                 .group  = FIO_OPT_G_VERIFY,
2937         },
2938         {
2939                 .name   = "verify_async",
2940                 .lname  = "Verify asynchronously",
2941                 .type   = FIO_OPT_INT,
2942                 .off1   = offsetof(struct thread_options, verify_async),
2943                 .def    = "0",
2944                 .help   = "Number of async verifier threads to use",
2945                 .parent = "verify",
2946                 .hide   = 1,
2947                 .category = FIO_OPT_C_IO,
2948                 .group  = FIO_OPT_G_VERIFY,
2949         },
2950         {
2951                 .name   = "verify_backlog",
2952                 .lname  = "Verify backlog",
2953                 .type   = FIO_OPT_STR_VAL,
2954                 .off1   = offsetof(struct thread_options, verify_backlog),
2955                 .help   = "Verify after this number of blocks are written",
2956                 .parent = "verify",
2957                 .hide   = 1,
2958                 .category = FIO_OPT_C_IO,
2959                 .group  = FIO_OPT_G_VERIFY,
2960         },
2961         {
2962                 .name   = "verify_backlog_batch",
2963                 .lname  = "Verify backlog batch",
2964                 .type   = FIO_OPT_INT,
2965                 .off1   = offsetof(struct thread_options, verify_batch),
2966                 .help   = "Verify this number of IO blocks",
2967                 .parent = "verify",
2968                 .hide   = 1,
2969                 .category = FIO_OPT_C_IO,
2970                 .group  = FIO_OPT_G_VERIFY,
2971         },
2972 #ifdef FIO_HAVE_CPU_AFFINITY
2973         {
2974                 .name   = "verify_async_cpus",
2975                 .lname  = "Async verify CPUs",
2976                 .type   = FIO_OPT_STR,
2977                 .cb     = str_verify_cpus_allowed_cb,
2978                 .off1   = offsetof(struct thread_options, verify_cpumask),
2979                 .help   = "Set CPUs allowed for async verify threads",
2980                 .parent = "verify_async",
2981                 .hide   = 1,
2982                 .category = FIO_OPT_C_IO,
2983                 .group  = FIO_OPT_G_VERIFY,
2984         },
2985 #else
2986         {
2987                 .name   = "verify_async_cpus",
2988                 .lname  = "Async verify CPUs",
2989                 .type   = FIO_OPT_UNSUPPORTED,
2990                 .help   = "Your platform does not support CPU affinities",
2991         },
2992 #endif
2993         {
2994                 .name   = "experimental_verify",
2995                 .lname  = "Experimental Verify",
2996                 .off1   = offsetof(struct thread_options, experimental_verify),
2997                 .type   = FIO_OPT_BOOL,
2998                 .help   = "Enable experimental verification",
2999                 .parent = "verify",
3000                 .category = FIO_OPT_C_IO,
3001                 .group  = FIO_OPT_G_VERIFY,
3002         },
3003         {
3004                 .name   = "verify_state_load",
3005                 .lname  = "Load verify state",
3006                 .off1   = offsetof(struct thread_options, verify_state),
3007                 .type   = FIO_OPT_BOOL,
3008                 .help   = "Load verify termination state",
3009                 .parent = "verify",
3010                 .category = FIO_OPT_C_IO,
3011                 .group  = FIO_OPT_G_VERIFY,
3012         },
3013         {
3014                 .name   = "verify_state_save",
3015                 .lname  = "Save verify state",
3016                 .off1   = offsetof(struct thread_options, verify_state_save),
3017                 .type   = FIO_OPT_BOOL,
3018                 .def    = "1",
3019                 .help   = "Save verify state on termination",
3020                 .parent = "verify",
3021                 .category = FIO_OPT_C_IO,
3022                 .group  = FIO_OPT_G_VERIFY,
3023         },
3024 #ifdef FIO_HAVE_TRIM
3025         {
3026                 .name   = "trim_percentage",
3027                 .lname  = "Trim percentage",
3028                 .type   = FIO_OPT_INT,
3029                 .off1   = offsetof(struct thread_options, trim_percentage),
3030                 .minval = 0,
3031                 .maxval = 100,
3032                 .help   = "Number of verify blocks to trim (i.e., discard)",
3033                 .parent = "verify",
3034                 .def    = "0",
3035                 .interval = 1,
3036                 .hide   = 1,
3037                 .category = FIO_OPT_C_IO,
3038                 .group  = FIO_OPT_G_TRIM,
3039         },
3040         {
3041                 .name   = "trim_verify_zero",
3042                 .lname  = "Verify trim zero",
3043                 .type   = FIO_OPT_BOOL,
3044                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3045                 .off1   = offsetof(struct thread_options, trim_zero),
3046                 .parent = "trim_percentage",
3047                 .hide   = 1,
3048                 .def    = "1",
3049                 .category = FIO_OPT_C_IO,
3050                 .group  = FIO_OPT_G_TRIM,
3051         },
3052         {
3053                 .name   = "trim_backlog",
3054                 .lname  = "Trim backlog",
3055                 .type   = FIO_OPT_STR_VAL,
3056                 .off1   = offsetof(struct thread_options, trim_backlog),
3057                 .help   = "Trim after this number of blocks are written",
3058                 .parent = "trim_percentage",
3059                 .hide   = 1,
3060                 .interval = 1,
3061                 .category = FIO_OPT_C_IO,
3062                 .group  = FIO_OPT_G_TRIM,
3063         },
3064         {
3065                 .name   = "trim_backlog_batch",
3066                 .lname  = "Trim backlog batch",
3067                 .type   = FIO_OPT_INT,
3068                 .off1   = offsetof(struct thread_options, trim_batch),
3069                 .help   = "Trim this number of IO blocks",
3070                 .parent = "trim_percentage",
3071                 .hide   = 1,
3072                 .interval = 1,
3073                 .category = FIO_OPT_C_IO,
3074                 .group  = FIO_OPT_G_TRIM,
3075         },
3076 #else
3077         {
3078                 .name   = "trim_percentage",
3079                 .lname  = "Trim percentage",
3080                 .type   = FIO_OPT_UNSUPPORTED,
3081                 .help   = "Fio does not support TRIM on your platform",
3082         },
3083         {
3084                 .name   = "trim_verify_zero",
3085                 .lname  = "Verify trim zero",
3086                 .type   = FIO_OPT_UNSUPPORTED,
3087                 .help   = "Fio does not support TRIM on your platform",
3088         },
3089         {
3090                 .name   = "trim_backlog",
3091                 .lname  = "Trim backlog",
3092                 .type   = FIO_OPT_UNSUPPORTED,
3093                 .help   = "Fio does not support TRIM on your platform",
3094         },
3095         {
3096                 .name   = "trim_backlog_batch",
3097                 .lname  = "Trim backlog batch",
3098                 .type   = FIO_OPT_UNSUPPORTED,
3099                 .help   = "Fio does not support TRIM on your platform",
3100         },
3101 #endif
3102         {
3103                 .name   = "write_iolog",
3104                 .lname  = "Write I/O log",
3105                 .type   = FIO_OPT_STR_STORE,
3106                 .off1   = offsetof(struct thread_options, write_iolog_file),
3107                 .help   = "Store IO pattern to file",
3108                 .category = FIO_OPT_C_IO,
3109                 .group  = FIO_OPT_G_IOLOG,
3110         },
3111         {
3112                 .name   = "read_iolog",
3113                 .lname  = "Read I/O log",
3114                 .type   = FIO_OPT_STR_STORE,
3115                 .off1   = offsetof(struct thread_options, read_iolog_file),
3116                 .help   = "Playback IO pattern from file",
3117                 .category = FIO_OPT_C_IO,
3118                 .group  = FIO_OPT_G_IOLOG,
3119         },
3120         {
3121                 .name   = "replay_no_stall",
3122                 .lname  = "Don't stall on replay",
3123                 .type   = FIO_OPT_BOOL,
3124                 .off1   = offsetof(struct thread_options, no_stall),
3125                 .def    = "0",
3126                 .parent = "read_iolog",
3127                 .hide   = 1,
3128                 .help   = "Playback IO pattern file as fast as possible without stalls",
3129                 .category = FIO_OPT_C_IO,
3130                 .group  = FIO_OPT_G_IOLOG,
3131         },
3132         {
3133                 .name   = "replay_redirect",
3134                 .lname  = "Redirect device for replay",
3135                 .type   = FIO_OPT_STR_STORE,
3136                 .off1   = offsetof(struct thread_options, replay_redirect),
3137                 .parent = "read_iolog",
3138                 .hide   = 1,
3139                 .help   = "Replay all I/O onto this device, regardless of trace device",
3140                 .category = FIO_OPT_C_IO,
3141                 .group  = FIO_OPT_G_IOLOG,
3142         },
3143         {
3144                 .name   = "replay_scale",
3145                 .lname  = "Replace offset scale factor",
3146                 .type   = FIO_OPT_INT,
3147                 .off1   = offsetof(struct thread_options, replay_scale),
3148                 .parent = "read_iolog",
3149                 .def    = "1",
3150                 .help   = "Align offsets to this blocksize",
3151                 .category = FIO_OPT_C_IO,
3152                 .group  = FIO_OPT_G_IOLOG,
3153         },
3154         {
3155                 .name   = "replay_align",
3156                 .lname  = "Replace alignment",
3157                 .type   = FIO_OPT_INT,
3158                 .off1   = offsetof(struct thread_options, replay_align),
3159                 .parent = "read_iolog",
3160                 .help   = "Scale offset down by this factor",
3161                 .category = FIO_OPT_C_IO,
3162                 .group  = FIO_OPT_G_IOLOG,
3163                 .pow2   = 1,
3164         },
3165         {
3166                 .name   = "exec_prerun",
3167                 .lname  = "Pre-execute runnable",
3168                 .type   = FIO_OPT_STR_STORE,
3169                 .off1   = offsetof(struct thread_options, exec_prerun),
3170                 .help   = "Execute this file prior to running job",
3171                 .category = FIO_OPT_C_GENERAL,
3172                 .group  = FIO_OPT_G_INVALID,
3173         },
3174         {
3175                 .name   = "exec_postrun",
3176                 .lname  = "Post-execute runnable",
3177                 .type   = FIO_OPT_STR_STORE,
3178                 .off1   = offsetof(struct thread_options, exec_postrun),
3179                 .help   = "Execute this file after running job",
3180                 .category = FIO_OPT_C_GENERAL,
3181                 .group  = FIO_OPT_G_INVALID,
3182         },
3183 #ifdef FIO_HAVE_IOSCHED_SWITCH
3184         {
3185                 .name   = "ioscheduler",
3186                 .lname  = "I/O scheduler",
3187                 .type   = FIO_OPT_STR_STORE,
3188                 .off1   = offsetof(struct thread_options, ioscheduler),
3189                 .help   = "Use this IO scheduler on the backing device",
3190                 .category = FIO_OPT_C_FILE,
3191                 .group  = FIO_OPT_G_INVALID,
3192         },
3193 #else
3194         {
3195                 .name   = "ioscheduler",
3196                 .lname  = "I/O scheduler",
3197                 .type   = FIO_OPT_UNSUPPORTED,
3198                 .help   = "Your platform does not support IO scheduler switching",
3199         },
3200 #endif
3201         {
3202                 .name   = "zonesize",
3203                 .lname  = "Zone size",
3204                 .type   = FIO_OPT_STR_VAL,
3205                 .off1   = offsetof(struct thread_options, zone_size),
3206                 .help   = "Amount of data to read per zone",
3207                 .def    = "0",
3208                 .interval = 1024 * 1024,
3209                 .category = FIO_OPT_C_IO,
3210                 .group  = FIO_OPT_G_ZONE,
3211         },
3212         {
3213                 .name   = "zonerange",
3214                 .lname  = "Zone range",
3215                 .type   = FIO_OPT_STR_VAL,
3216                 .off1   = offsetof(struct thread_options, zone_range),
3217                 .help   = "Give size of an IO zone",
3218                 .def    = "0",
3219                 .interval = 1024 * 1024,
3220                 .category = FIO_OPT_C_IO,
3221                 .group  = FIO_OPT_G_ZONE,
3222         },
3223         {
3224                 .name   = "zoneskip",
3225                 .lname  = "Zone skip",
3226                 .type   = FIO_OPT_STR_VAL,
3227                 .off1   = offsetof(struct thread_options, zone_skip),
3228                 .help   = "Space between IO zones",
3229                 .def    = "0",
3230                 .interval = 1024 * 1024,
3231                 .category = FIO_OPT_C_IO,
3232                 .group  = FIO_OPT_G_ZONE,
3233         },
3234         {
3235                 .name   = "lockmem",
3236                 .lname  = "Lock memory",
3237                 .type   = FIO_OPT_STR_VAL,
3238                 .off1   = offsetof(struct thread_options, lockmem),
3239                 .help   = "Lock down this amount of memory (per worker)",
3240                 .def    = "0",
3241                 .interval = 1024 * 1024,
3242                 .category = FIO_OPT_C_GENERAL,
3243                 .group  = FIO_OPT_G_INVALID,
3244         },
3245         {
3246                 .name   = "rwmixread",
3247                 .lname  = "Read/write mix read",
3248                 .type   = FIO_OPT_INT,
3249                 .cb     = str_rwmix_read_cb,
3250                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3251                 .maxval = 100,
3252                 .help   = "Percentage of mixed workload that is reads",
3253                 .def    = "50",
3254                 .interval = 5,
3255                 .inverse = "rwmixwrite",
3256                 .category = FIO_OPT_C_IO,
3257                 .group  = FIO_OPT_G_RWMIX,
3258         },
3259         {
3260                 .name   = "rwmixwrite",
3261                 .lname  = "Read/write mix write",
3262                 .type   = FIO_OPT_INT,
3263                 .cb     = str_rwmix_write_cb,
3264                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3265                 .maxval = 100,
3266                 .help   = "Percentage of mixed workload that is writes",
3267                 .def    = "50",
3268                 .interval = 5,
3269                 .inverse = "rwmixread",
3270                 .category = FIO_OPT_C_IO,
3271                 .group  = FIO_OPT_G_RWMIX,
3272         },
3273         {
3274                 .name   = "rwmixcycle",
3275                 .lname  = "Read/write mix cycle",
3276                 .type   = FIO_OPT_DEPRECATED,
3277                 .category = FIO_OPT_C_IO,
3278                 .group  = FIO_OPT_G_RWMIX,
3279         },
3280         {
3281                 .name   = "nice",
3282                 .lname  = "Nice",
3283                 .type   = FIO_OPT_INT,
3284                 .off1   = offsetof(struct thread_options, nice),
3285                 .help   = "Set job CPU nice value",
3286                 .minval = -20,
3287                 .maxval = 19,
3288                 .def    = "0",
3289                 .interval = 1,
3290                 .category = FIO_OPT_C_GENERAL,
3291                 .group  = FIO_OPT_G_CRED,
3292         },
3293 #ifdef FIO_HAVE_IOPRIO
3294         {
3295                 .name   = "prio",
3296                 .lname  = "I/O nice priority",
3297                 .type   = FIO_OPT_INT,
3298                 .off1   = offsetof(struct thread_options, ioprio),
3299                 .help   = "Set job IO priority value",
3300                 .minval = IOPRIO_MIN_PRIO,
3301                 .maxval = IOPRIO_MAX_PRIO,
3302                 .interval = 1,
3303                 .category = FIO_OPT_C_GENERAL,
3304                 .group  = FIO_OPT_G_CRED,
3305         },
3306 #else
3307         {
3308                 .name   = "prio",
3309                 .lname  = "I/O nice priority",
3310                 .type   = FIO_OPT_UNSUPPORTED,
3311                 .help   = "Your platform does not support IO priorities",
3312         },
3313 #endif
3314 #ifdef FIO_HAVE_IOPRIO_CLASS
3315 #ifndef FIO_HAVE_IOPRIO
3316 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3317 #endif
3318         {
3319                 .name   = "prioclass",
3320                 .lname  = "I/O nice priority class",
3321                 .type   = FIO_OPT_INT,
3322                 .off1   = offsetof(struct thread_options, ioprio_class),
3323                 .help   = "Set job IO priority class",
3324                 .minval = IOPRIO_MIN_PRIO_CLASS,
3325                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3326                 .interval = 1,
3327                 .category = FIO_OPT_C_GENERAL,
3328                 .group  = FIO_OPT_G_CRED,
3329         },
3330 #else
3331         {
3332                 .name   = "prioclass",
3333                 .lname  = "I/O nice priority class",
3334                 .type   = FIO_OPT_UNSUPPORTED,
3335                 .help   = "Your platform does not support IO priority classes",
3336         },
3337 #endif
3338         {
3339                 .name   = "thinktime",
3340                 .lname  = "Thinktime",
3341                 .type   = FIO_OPT_INT,
3342                 .off1   = offsetof(struct thread_options, thinktime),
3343                 .help   = "Idle time between IO buffers (usec)",
3344                 .def    = "0",
3345                 .is_time = 1,
3346                 .category = FIO_OPT_C_IO,
3347                 .group  = FIO_OPT_G_THINKTIME,
3348         },
3349         {
3350                 .name   = "thinktime_spin",
3351                 .lname  = "Thinktime spin",
3352                 .type   = FIO_OPT_INT,
3353                 .off1   = offsetof(struct thread_options, thinktime_spin),
3354                 .help   = "Start think time by spinning this amount (usec)",
3355                 .def    = "0",
3356                 .is_time = 1,
3357                 .parent = "thinktime",
3358                 .hide   = 1,
3359                 .category = FIO_OPT_C_IO,
3360                 .group  = FIO_OPT_G_THINKTIME,
3361         },
3362         {
3363                 .name   = "thinktime_blocks",
3364                 .lname  = "Thinktime blocks",
3365                 .type   = FIO_OPT_INT,
3366                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3367                 .help   = "IO buffer period between 'thinktime'",
3368                 .def    = "1",
3369                 .parent = "thinktime",
3370                 .hide   = 1,
3371                 .category = FIO_OPT_C_IO,
3372                 .group  = FIO_OPT_G_THINKTIME,
3373         },
3374         {
3375                 .name   = "rate",
3376                 .lname  = "I/O rate",
3377                 .type   = FIO_OPT_INT,
3378                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3379                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3380                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3381                 .help   = "Set bandwidth rate",
3382                 .category = FIO_OPT_C_IO,
3383                 .group  = FIO_OPT_G_RATE,
3384         },
3385         {
3386                 .name   = "rate_min",
3387                 .alias  = "ratemin",
3388                 .lname  = "I/O min rate",
3389                 .type   = FIO_OPT_INT,
3390                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3391                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3392                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3393                 .help   = "Job must meet this rate or it will be shutdown",
3394                 .parent = "rate",
3395                 .hide   = 1,
3396                 .category = FIO_OPT_C_IO,
3397                 .group  = FIO_OPT_G_RATE,
3398         },
3399         {
3400                 .name   = "rate_iops",
3401                 .lname  = "I/O rate IOPS",
3402                 .type   = FIO_OPT_INT,
3403                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3404                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3405                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3406                 .help   = "Limit IO used to this number of IO operations/sec",
3407                 .hide   = 1,
3408                 .category = FIO_OPT_C_IO,
3409                 .group  = FIO_OPT_G_RATE,
3410         },
3411         {
3412                 .name   = "rate_iops_min",
3413                 .lname  = "I/O min rate IOPS",
3414                 .type   = FIO_OPT_INT,
3415                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3416                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3417                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3418                 .help   = "Job must meet this rate or it will be shut down",
3419                 .parent = "rate_iops",
3420                 .hide   = 1,
3421                 .category = FIO_OPT_C_IO,
3422                 .group  = FIO_OPT_G_RATE,
3423         },
3424         {
3425                 .name   = "rate_process",
3426                 .lname  = "Rate Process",
3427                 .type   = FIO_OPT_STR,
3428                 .off1   = offsetof(struct thread_options, rate_process),
3429                 .help   = "What process controls how rated IO is managed",
3430                 .def    = "linear",
3431                 .category = FIO_OPT_C_IO,
3432                 .group  = FIO_OPT_G_RATE,
3433                 .posval = {
3434                           { .ival = "linear",
3435                             .oval = RATE_PROCESS_LINEAR,
3436                             .help = "Linear rate of IO",
3437                           },
3438                           {
3439                             .ival = "poisson",
3440                             .oval = RATE_PROCESS_POISSON,
3441                             .help = "Rate follows Poisson process",
3442                           },
3443                 },
3444                 .parent = "rate",
3445         },
3446         {
3447                 .name   = "rate_cycle",
3448                 .alias  = "ratecycle",
3449                 .lname  = "I/O rate cycle",
3450                 .type   = FIO_OPT_INT,
3451                 .off1   = offsetof(struct thread_options, ratecycle),
3452                 .help   = "Window average for rate limits (msec)",
3453                 .def    = "1000",
3454                 .parent = "rate",
3455                 .hide   = 1,
3456                 .category = FIO_OPT_C_IO,
3457                 .group  = FIO_OPT_G_RATE,
3458         },
3459         {
3460                 .name   = "max_latency",
3461                 .lname  = "Max Latency",
3462                 .type   = FIO_OPT_INT,
3463                 .off1   = offsetof(struct thread_options, max_latency),
3464                 .help   = "Maximum tolerated IO latency (usec)",
3465                 .is_time = 1,
3466                 .category = FIO_OPT_C_IO,
3467                 .group = FIO_OPT_G_LATPROF,
3468         },
3469         {
3470                 .name   = "latency_target",
3471                 .lname  = "Latency Target (usec)",
3472                 .type   = FIO_OPT_STR_VAL_TIME,
3473                 .off1   = offsetof(struct thread_options, latency_target),
3474                 .help   = "Ramp to max queue depth supporting this latency",
3475                 .is_time = 1,
3476                 .category = FIO_OPT_C_IO,
3477                 .group  = FIO_OPT_G_LATPROF,
3478         },
3479         {
3480                 .name   = "latency_window",
3481                 .lname  = "Latency Window (usec)",
3482                 .type   = FIO_OPT_STR_VAL_TIME,
3483                 .off1   = offsetof(struct thread_options, latency_window),
3484                 .help   = "Time to sustain latency_target",
3485                 .is_time = 1,
3486                 .category = FIO_OPT_C_IO,
3487                 .group  = FIO_OPT_G_LATPROF,
3488         },
3489         {
3490                 .name   = "latency_percentile",
3491                 .lname  = "Latency Percentile",
3492                 .type   = FIO_OPT_FLOAT_LIST,
3493                 .off1   = offsetof(struct thread_options, latency_percentile),
3494                 .help   = "Percentile of IOs must be below latency_target",
3495                 .def    = "100",
3496                 .maxlen = 1,
3497                 .minfp  = 0.0,
3498                 .maxfp  = 100.0,
3499                 .category = FIO_OPT_C_IO,
3500                 .group  = FIO_OPT_G_LATPROF,
3501         },
3502         {
3503                 .name   = "invalidate",
3504                 .lname  = "Cache invalidate",
3505                 .type   = FIO_OPT_BOOL,
3506                 .off1   = offsetof(struct thread_options, invalidate_cache),
3507                 .help   = "Invalidate buffer/page cache prior to running job",
3508                 .def    = "1",
3509                 .category = FIO_OPT_C_IO,
3510                 .group  = FIO_OPT_G_IO_TYPE,
3511         },
3512         {
3513                 .name   = "sync",
3514                 .lname  = "Synchronous I/O",
3515                 .type   = FIO_OPT_BOOL,
3516                 .off1   = offsetof(struct thread_options, sync_io),
3517                 .help   = "Use O_SYNC for buffered writes",
3518                 .def    = "0",
3519                 .parent = "buffered",
3520                 .hide   = 1,
3521                 .category = FIO_OPT_C_IO,
3522                 .group  = FIO_OPT_G_IO_TYPE,
3523         },
3524 #ifdef FIO_HAVE_WRITE_HINT
3525         {
3526                 .name   = "write_hint",
3527                 .lname  = "Write hint",
3528                 .type   = FIO_OPT_STR,
3529                 .off1   = offsetof(struct thread_options, write_hint),
3530                 .help   = "Set expected write life time",
3531                 .category = FIO_OPT_C_ENGINE,
3532                 .group  = FIO_OPT_G_INVALID,
3533                 .posval = {
3534                           { .ival = "none",
3535                             .oval = RWH_WRITE_LIFE_NONE,
3536                           },
3537                           { .ival = "short",
3538                             .oval = RWH_WRITE_LIFE_SHORT,
3539                           },
3540                           { .ival = "medium",
3541                             .oval = RWH_WRITE_LIFE_MEDIUM,
3542                           },
3543                           { .ival = "long",
3544                             .oval = RWH_WRITE_LIFE_LONG,
3545                           },
3546                           { .ival = "extreme",
3547                             .oval = RWH_WRITE_LIFE_EXTREME,
3548                           },
3549                 },
3550         },
3551 #endif
3552         {
3553                 .name   = "create_serialize",
3554                 .lname  = "Create serialize",
3555                 .type   = FIO_OPT_BOOL,
3556                 .off1   = offsetof(struct thread_options, create_serialize),
3557                 .help   = "Serialize creation of job files",
3558                 .def    = "1",
3559                 .category = FIO_OPT_C_FILE,
3560                 .group  = FIO_OPT_G_INVALID,
3561         },
3562         {
3563                 .name   = "create_fsync",
3564                 .lname  = "Create fsync",
3565                 .type   = FIO_OPT_BOOL,
3566                 .off1   = offsetof(struct thread_options, create_fsync),
3567                 .help   = "fsync file after creation",
3568                 .def    = "1",
3569                 .category = FIO_OPT_C_FILE,
3570                 .group  = FIO_OPT_G_INVALID,
3571         },
3572         {
3573                 .name   = "create_on_open",
3574                 .lname  = "Create on open",
3575                 .type   = FIO_OPT_BOOL,
3576                 .off1   = offsetof(struct thread_options, create_on_open),
3577                 .help   = "Create files when they are opened for IO",
3578                 .def    = "0",
3579                 .category = FIO_OPT_C_FILE,
3580                 .group  = FIO_OPT_G_INVALID,
3581         },
3582         {
3583                 .name   = "create_only",
3584                 .lname  = "Create Only",
3585                 .type   = FIO_OPT_BOOL,
3586                 .off1   = offsetof(struct thread_options, create_only),
3587                 .help   = "Only perform file creation phase",
3588                 .category = FIO_OPT_C_FILE,
3589                 .def    = "0",
3590         },
3591         {
3592                 .name   = "allow_file_create",
3593                 .lname  = "Allow file create",
3594                 .type   = FIO_OPT_BOOL,
3595                 .off1   = offsetof(struct thread_options, allow_create),
3596                 .help   = "Permit fio to create files, if they don't exist",
3597                 .def    = "1",
3598                 .category = FIO_OPT_C_FILE,
3599                 .group  = FIO_OPT_G_FILENAME,
3600         },
3601         {
3602                 .name   = "allow_mounted_write",
3603                 .lname  = "Allow mounted write",
3604                 .type   = FIO_OPT_BOOL,
3605                 .off1   = offsetof(struct thread_options, allow_mounted_write),
3606                 .help   = "Allow writes to a mounted partition",
3607                 .def    = "0",
3608                 .category = FIO_OPT_C_FILE,
3609                 .group  = FIO_OPT_G_FILENAME,
3610         },
3611         {
3612                 .name   = "pre_read",
3613                 .lname  = "Pre-read files",
3614                 .type   = FIO_OPT_BOOL,
3615                 .off1   = offsetof(struct thread_options, pre_read),
3616                 .help   = "Pre-read files before starting official testing",
3617                 .def    = "0",
3618                 .category = FIO_OPT_C_FILE,
3619                 .group  = FIO_OPT_G_INVALID,
3620         },
3621 #ifdef FIO_HAVE_CPU_AFFINITY
3622         {
3623                 .name   = "cpumask",
3624                 .lname  = "CPU mask",
3625                 .type   = FIO_OPT_INT,
3626                 .cb     = str_cpumask_cb,
3627                 .off1   = offsetof(struct thread_options, cpumask),
3628                 .help   = "CPU affinity mask",
3629                 .category = FIO_OPT_C_GENERAL,
3630                 .group  = FIO_OPT_G_CRED,
3631         },
3632         {
3633                 .name   = "cpus_allowed",
3634                 .lname  = "CPUs allowed",
3635                 .type   = FIO_OPT_STR,
3636                 .cb     = str_cpus_allowed_cb,
3637                 .off1   = offsetof(struct thread_options, cpumask),
3638                 .help   = "Set CPUs allowed",
3639                 .category = FIO_OPT_C_GENERAL,
3640                 .group  = FIO_OPT_G_CRED,
3641         },
3642         {
3643                 .name   = "cpus_allowed_policy",
3644                 .lname  = "CPUs allowed distribution policy",
3645                 .type   = FIO_OPT_STR,
3646                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
3647                 .help   = "Distribution policy for cpus_allowed",
3648                 .parent = "cpus_allowed",
3649                 .prio   = 1,
3650                 .posval = {
3651                           { .ival = "shared",
3652                             .oval = FIO_CPUS_SHARED,
3653                             .help = "Mask shared between threads",
3654                           },
3655                           { .ival = "split",
3656                             .oval = FIO_CPUS_SPLIT,
3657                             .help = "Mask split between threads",
3658                           },
3659                 },
3660                 .category = FIO_OPT_C_GENERAL,
3661                 .group  = FIO_OPT_G_CRED,
3662         },
3663 #else
3664         {
3665                 .name   = "cpumask",
3666                 .lname  = "CPU mask",
3667                 .type   = FIO_OPT_UNSUPPORTED,
3668                 .help   = "Your platform does not support CPU affinities",
3669         },
3670         {
3671                 .name   = "cpus_allowed",
3672                 .lname  = "CPUs allowed",
3673                 .type   = FIO_OPT_UNSUPPORTED,
3674                 .help   = "Your platform does not support CPU affinities",
3675         },
3676         {
3677                 .name   = "cpus_allowed_policy",
3678                 .lname  = "CPUs allowed distribution policy",
3679                 .type   = FIO_OPT_UNSUPPORTED,
3680                 .help   = "Your platform does not support CPU affinities",
3681         },
3682 #endif
3683 #ifdef CONFIG_LIBNUMA
3684         {
3685                 .name   = "numa_cpu_nodes",
3686                 .lname  = "NUMA CPU Nodes",
3687                 .type   = FIO_OPT_STR,
3688                 .cb     = str_numa_cpunodes_cb,
3689                 .off1   = offsetof(struct thread_options, numa_cpunodes),
3690                 .help   = "NUMA CPU nodes bind",
3691                 .category = FIO_OPT_C_GENERAL,
3692                 .group  = FIO_OPT_G_INVALID,
3693         },
3694         {
3695                 .name   = "numa_mem_policy",
3696                 .lname  = "NUMA Memory Policy",
3697                 .type   = FIO_OPT_STR,
3698                 .cb     = str_numa_mpol_cb,
3699                 .off1   = offsetof(struct thread_options, numa_memnodes),
3700                 .help   = "NUMA memory policy setup",
3701                 .category = FIO_OPT_C_GENERAL,
3702                 .group  = FIO_OPT_G_INVALID,
3703         },
3704 #else
3705         {
3706                 .name   = "numa_cpu_nodes",
3707                 .lname  = "NUMA CPU Nodes",
3708                 .type   = FIO_OPT_UNSUPPORTED,
3709                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3710         },
3711         {
3712                 .name   = "numa_mem_policy",
3713                 .lname  = "NUMA Memory Policy",
3714                 .type   = FIO_OPT_UNSUPPORTED,
3715                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3716         },
3717 #endif
3718 #ifdef CONFIG_CUDA
3719         {
3720                 .name   = "gpu_dev_id",
3721                 .lname  = "GPU device ID",
3722                 .type   = FIO_OPT_INT,
3723                 .off1   = offsetof(struct thread_options, gpu_dev_id),
3724                 .help   = "Set GPU device ID for GPUDirect RDMA",
3725                 .def    = "0",
3726                 .category = FIO_OPT_C_GENERAL,
3727                 .group  = FIO_OPT_G_INVALID,
3728         },
3729 #endif
3730         {
3731                 .name   = "end_fsync",
3732                 .lname  = "End fsync",
3733                 .type   = FIO_OPT_BOOL,
3734                 .off1   = offsetof(struct thread_options, end_fsync),
3735                 .help   = "Include fsync at the end of job",
3736                 .def    = "0",
3737                 .category = FIO_OPT_C_FILE,
3738                 .group  = FIO_OPT_G_INVALID,
3739         },
3740         {
3741                 .name   = "fsync_on_close",
3742                 .lname  = "Fsync on close",
3743                 .type   = FIO_OPT_BOOL,
3744                 .off1   = offsetof(struct thread_options, fsync_on_close),
3745                 .help   = "fsync files on close",
3746                 .def    = "0",
3747                 .category = FIO_OPT_C_FILE,
3748                 .group  = FIO_OPT_G_INVALID,
3749         },
3750         {
3751                 .name   = "unlink",
3752                 .lname  = "Unlink file",
3753                 .type   = FIO_OPT_BOOL,
3754                 .off1   = offsetof(struct thread_options, unlink),
3755                 .help   = "Unlink created files after job has completed",
3756                 .def    = "0",
3757                 .category = FIO_OPT_C_FILE,
3758                 .group  = FIO_OPT_G_INVALID,
3759         },
3760         {
3761                 .name   = "unlink_each_loop",
3762                 .lname  = "Unlink file after each loop of a job",
3763                 .type   = FIO_OPT_BOOL,
3764                 .off1   = offsetof(struct thread_options, unlink_each_loop),
3765                 .help   = "Unlink created files after each loop in a job has completed",
3766                 .def    = "0",
3767                 .category = FIO_OPT_C_FILE,
3768                 .group  = FIO_OPT_G_INVALID,
3769         },
3770         {
3771                 .name   = "exitall",
3772                 .lname  = "Exit-all on terminate",
3773                 .type   = FIO_OPT_STR_SET,
3774                 .cb     = str_exitall_cb,
3775                 .help   = "Terminate all jobs when one exits",
3776                 .category = FIO_OPT_C_GENERAL,
3777                 .group  = FIO_OPT_G_PROCESS,
3778         },
3779         {
3780                 .name   = "exitall_on_error",
3781                 .lname  = "Exit-all on terminate in error",
3782                 .type   = FIO_OPT_STR_SET,
3783                 .off1   = offsetof(struct thread_options, exitall_error),
3784                 .help   = "Terminate all jobs when one exits in error",
3785                 .category = FIO_OPT_C_GENERAL,
3786                 .group  = FIO_OPT_G_PROCESS,
3787         },
3788         {
3789                 .name   = "stonewall",
3790                 .lname  = "Wait for previous",
3791                 .alias  = "wait_for_previous",
3792                 .type   = FIO_OPT_STR_SET,
3793                 .off1   = offsetof(struct thread_options, stonewall),
3794                 .help   = "Insert a hard barrier between this job and previous",
3795                 .category = FIO_OPT_C_GENERAL,
3796                 .group  = FIO_OPT_G_PROCESS,
3797         },
3798         {
3799                 .name   = "new_group",
3800                 .lname  = "New group",
3801                 .type   = FIO_OPT_STR_SET,
3802                 .off1   = offsetof(struct thread_options, new_group),
3803                 .help   = "Mark the start of a new group (for reporting)",
3804                 .category = FIO_OPT_C_GENERAL,
3805                 .group  = FIO_OPT_G_PROCESS,
3806         },
3807         {
3808                 .name   = "thread",
3809                 .lname  = "Thread",
3810                 .type   = FIO_OPT_STR_SET,
3811                 .off1   = offsetof(struct thread_options, use_thread),
3812                 .help   = "Use threads instead of processes",
3813 #ifdef CONFIG_NO_SHM
3814                 .def    = "1",
3815                 .no_warn_def = 1,
3816 #endif
3817                 .category = FIO_OPT_C_GENERAL,
3818                 .group  = FIO_OPT_G_PROCESS,
3819         },
3820         {
3821                 .name   = "per_job_logs",
3822                 .lname  = "Per Job Logs",
3823                 .type   = FIO_OPT_BOOL,
3824                 .off1   = offsetof(struct thread_options, per_job_logs),
3825                 .help   = "Include job number in generated log files or not",
3826                 .def    = "1",
3827                 .category = FIO_OPT_C_LOG,
3828                 .group  = FIO_OPT_G_INVALID,
3829         },
3830         {
3831                 .name   = "write_bw_log",
3832                 .lname  = "Write bandwidth log",
3833                 .type   = FIO_OPT_STR,
3834                 .off1   = offsetof(struct thread_options, bw_log_file),
3835                 .cb     = str_write_bw_log_cb,
3836                 .help   = "Write log of bandwidth during run",
3837                 .category = FIO_OPT_C_LOG,
3838                 .group  = FIO_OPT_G_INVALID,
3839         },
3840         {
3841                 .name   = "write_lat_log",
3842                 .lname  = "Write latency log",
3843                 .type   = FIO_OPT_STR,
3844                 .off1   = offsetof(struct thread_options, lat_log_file),
3845                 .cb     = str_write_lat_log_cb,
3846                 .help   = "Write log of latency during run",
3847                 .category = FIO_OPT_C_LOG,
3848                 .group  = FIO_OPT_G_INVALID,
3849         },
3850         {
3851                 .name   = "write_iops_log",
3852                 .lname  = "Write IOPS log",
3853                 .type   = FIO_OPT_STR,
3854                 .off1   = offsetof(struct thread_options, iops_log_file),
3855                 .cb     = str_write_iops_log_cb,
3856                 .help   = "Write log of IOPS during run",
3857                 .category = FIO_OPT_C_LOG,
3858                 .group  = FIO_OPT_G_INVALID,
3859         },
3860         {
3861                 .name   = "log_avg_msec",
3862                 .lname  = "Log averaging (msec)",
3863                 .type   = FIO_OPT_INT,
3864                 .off1   = offsetof(struct thread_options, log_avg_msec),
3865                 .help   = "Average bw/iops/lat logs over this period of time",
3866                 .def    = "0",
3867                 .category = FIO_OPT_C_LOG,
3868                 .group  = FIO_OPT_G_INVALID,
3869         },
3870         {
3871                 .name   = "log_hist_msec",
3872                 .lname  = "Log histograms (msec)",
3873                 .type   = FIO_OPT_INT,
3874                 .off1   = offsetof(struct thread_options, log_hist_msec),
3875                 .help   = "Dump completion latency histograms at frequency of this time value",
3876                 .def    = "0",
3877                 .category = FIO_OPT_C_LOG,
3878                 .group  = FIO_OPT_G_INVALID,
3879         },
3880         {
3881                 .name   = "log_hist_coarseness",
3882                 .lname  = "Histogram logs coarseness",
3883                 .type   = FIO_OPT_INT,
3884                 .off1   = offsetof(struct thread_options, log_hist_coarseness),
3885                 .help   = "Integer in range [0,6]. Higher coarseness outputs"
3886                         " fewer histogram bins per sample. The number of bins for"
3887                         " these are [1216, 608, 304, 152, 76, 38, 19] respectively.",
3888                 .def    = "0",
3889                 .category = FIO_OPT_C_LOG,
3890                 .group  = FIO_OPT_G_INVALID,
3891         },
3892         {
3893                 .name   = "write_hist_log",
3894                 .lname  = "Write latency histogram logs",
3895                 .type   = FIO_OPT_STR,
3896                 .off1   = offsetof(struct thread_options, hist_log_file),
3897                 .cb     = str_write_hist_log_cb,
3898                 .help   = "Write log of latency histograms during run",
3899                 .category = FIO_OPT_C_LOG,
3900                 .group  = FIO_OPT_G_INVALID,
3901         },
3902         {
3903                 .name   = "log_max_value",
3904                 .lname  = "Log maximum instead of average",
3905                 .type   = FIO_OPT_BOOL,
3906                 .off1   = offsetof(struct thread_options, log_max),
3907                 .help   = "Log max sample in a window instead of average",
3908                 .def    = "0",
3909                 .category = FIO_OPT_C_LOG,
3910                 .group  = FIO_OPT_G_INVALID,
3911         },
3912         {
3913                 .name   = "log_offset",
3914                 .lname  = "Log offset of IO",
3915                 .type   = FIO_OPT_BOOL,
3916                 .off1   = offsetof(struct thread_options, log_offset),
3917                 .help   = "Include offset of IO for each log entry",
3918                 .def    = "0",
3919                 .category = FIO_OPT_C_LOG,
3920                 .group  = FIO_OPT_G_INVALID,
3921         },
3922 #ifdef CONFIG_ZLIB
3923         {
3924                 .name   = "log_compression",
3925                 .lname  = "Log compression",
3926                 .type   = FIO_OPT_INT,
3927                 .off1   = offsetof(struct thread_options, log_gz),
3928                 .help   = "Log in compressed chunks of this size",
3929                 .minval = 1024ULL,
3930                 .maxval = 512 * 1024 * 1024ULL,
3931                 .category = FIO_OPT_C_LOG,
3932                 .group  = FIO_OPT_G_INVALID,
3933         },
3934 #ifdef FIO_HAVE_CPU_AFFINITY
3935         {
3936                 .name   = "log_compression_cpus",
3937                 .lname  = "Log Compression CPUs",
3938                 .type   = FIO_OPT_STR,
3939                 .cb     = str_log_cpus_allowed_cb,
3940                 .off1   = offsetof(struct thread_options, log_gz_cpumask),
3941                 .parent = "log_compression",
3942                 .help   = "Limit log compression to these CPUs",
3943                 .category = FIO_OPT_C_LOG,
3944                 .group  = FIO_OPT_G_INVALID,
3945         },
3946 #else
3947         {
3948                 .name   = "log_compression_cpus",
3949                 .lname  = "Log Compression CPUs",
3950                 .type   = FIO_OPT_UNSUPPORTED,
3951                 .help   = "Your platform does not support CPU affinities",
3952         },
3953 #endif
3954         {
3955                 .name   = "log_store_compressed",
3956                 .lname  = "Log store compressed",
3957                 .type   = FIO_OPT_BOOL,
3958                 .off1   = offsetof(struct thread_options, log_gz_store),
3959                 .help   = "Store logs in a compressed format",
3960                 .category = FIO_OPT_C_LOG,
3961                 .group  = FIO_OPT_G_INVALID,
3962         },
3963 #else
3964         {
3965                 .name   = "log_compression",
3966                 .lname  = "Log compression",
3967                 .type   = FIO_OPT_UNSUPPORTED,
3968                 .help   = "Install libz-dev(el) to get compression support",
3969         },
3970         {
3971                 .name   = "log_store_compressed",
3972                 .lname  = "Log store compressed",
3973                 .type   = FIO_OPT_UNSUPPORTED,
3974                 .help   = "Install libz-dev(el) to get compression support",
3975         },
3976 #endif
3977         {
3978                 .name = "log_unix_epoch",
3979                 .lname = "Log epoch unix",
3980                 .type = FIO_OPT_BOOL,
3981                 .off1 = offsetof(struct thread_options, log_unix_epoch),
3982                 .help = "Use Unix time in log files",
3983                 .category = FIO_OPT_C_LOG,
3984                 .group = FIO_OPT_G_INVALID,
3985         },
3986         {
3987                 .name   = "block_error_percentiles",
3988                 .lname  = "Block error percentiles",
3989                 .type   = FIO_OPT_BOOL,
3990                 .off1   = offsetof(struct thread_options, block_error_hist),
3991                 .help   = "Record trim block errors and make a histogram",
3992                 .def    = "0",
3993                 .category = FIO_OPT_C_LOG,
3994                 .group  = FIO_OPT_G_INVALID,
3995         },
3996         {
3997                 .name   = "bwavgtime",
3998                 .lname  = "Bandwidth average time",
3999                 .type   = FIO_OPT_INT,
4000                 .off1   = offsetof(struct thread_options, bw_avg_time),
4001                 .help   = "Time window over which to calculate bandwidth"
4002                           " (msec)",
4003                 .def    = "500",
4004                 .parent = "write_bw_log",
4005                 .hide   = 1,
4006                 .interval = 100,
4007                 .category = FIO_OPT_C_LOG,
4008                 .group  = FIO_OPT_G_INVALID,
4009         },
4010         {
4011                 .name   = "iopsavgtime",
4012                 .lname  = "IOPS average time",
4013                 .type   = FIO_OPT_INT,
4014                 .off1   = offsetof(struct thread_options, iops_avg_time),
4015                 .help   = "Time window over which to calculate IOPS (msec)",
4016                 .def    = "500",
4017                 .parent = "write_iops_log",
4018                 .hide   = 1,
4019                 .interval = 100,
4020                 .category = FIO_OPT_C_LOG,
4021                 .group  = FIO_OPT_G_INVALID,
4022         },
4023         {
4024                 .name   = "group_reporting",
4025                 .lname  = "Group reporting",
4026                 .type   = FIO_OPT_STR_SET,
4027                 .off1   = offsetof(struct thread_options, group_reporting),
4028                 .help   = "Do reporting on a per-group basis",
4029                 .category = FIO_OPT_C_STAT,
4030                 .group  = FIO_OPT_G_INVALID,
4031         },
4032         {
4033                 .name   = "stats",
4034                 .lname  = "Stats",
4035                 .type   = FIO_OPT_BOOL,
4036                 .off1   = offsetof(struct thread_options, stats),
4037                 .help   = "Enable collection of stats",
4038                 .def    = "1",
4039                 .category = FIO_OPT_C_STAT,
4040                 .group  = FIO_OPT_G_INVALID,
4041         },
4042         {
4043                 .name   = "zero_buffers",
4044                 .lname  = "Zero I/O buffers",
4045                 .type   = FIO_OPT_STR_SET,
4046                 .off1   = offsetof(struct thread_options, zero_buffers),
4047                 .help   = "Init IO buffers to all zeroes",
4048                 .category = FIO_OPT_C_IO,
4049                 .group  = FIO_OPT_G_IO_BUF,
4050         },
4051         {
4052                 .name   = "refill_buffers",
4053                 .lname  = "Refill I/O buffers",
4054                 .type   = FIO_OPT_STR_SET,
4055                 .off1   = offsetof(struct thread_options, refill_buffers),
4056                 .help   = "Refill IO buffers on every IO submit",
4057                 .category = FIO_OPT_C_IO,
4058                 .group  = FIO_OPT_G_IO_BUF,
4059         },
4060         {
4061                 .name   = "scramble_buffers",
4062                 .lname  = "Scramble I/O buffers",
4063                 .type   = FIO_OPT_BOOL,
4064                 .off1   = offsetof(struct thread_options, scramble_buffers),
4065                 .help   = "Slightly scramble buffers on every IO submit",
4066                 .def    = "1",
4067                 .category = FIO_OPT_C_IO,
4068                 .group  = FIO_OPT_G_IO_BUF,
4069         },
4070         {
4071                 .name   = "buffer_pattern",
4072                 .lname  = "Buffer pattern",
4073                 .type   = FIO_OPT_STR,
4074                 .cb     = str_buffer_pattern_cb,
4075                 .off1   = offsetof(struct thread_options, buffer_pattern),
4076                 .help   = "Fill pattern for IO buffers",
4077                 .category = FIO_OPT_C_IO,
4078                 .group  = FIO_OPT_G_IO_BUF,
4079         },
4080         {
4081                 .name   = "buffer_compress_percentage",
4082                 .lname  = "Buffer compression percentage",
4083                 .type   = FIO_OPT_INT,
4084                 .cb     = str_buffer_compress_cb,
4085                 .off1   = offsetof(struct thread_options, compress_percentage),
4086                 .maxval = 100,
4087                 .minval = 0,
4088                 .help   = "How compressible the buffer is (approximately)",
4089                 .interval = 5,
4090                 .category = FIO_OPT_C_IO,
4091                 .group  = FIO_OPT_G_IO_BUF,
4092         },
4093         {
4094                 .name   = "buffer_compress_chunk",
4095                 .lname  = "Buffer compression chunk size",
4096                 .type   = FIO_OPT_INT,
4097                 .off1   = offsetof(struct thread_options, compress_chunk),
4098                 .parent = "buffer_compress_percentage",
4099                 .hide   = 1,
4100                 .help   = "Size of compressible region in buffer",
4101                 .def    = "512",
4102                 .interval = 256,
4103                 .category = FIO_OPT_C_IO,
4104                 .group  = FIO_OPT_G_IO_BUF,
4105         },
4106         {
4107                 .name   = "dedupe_percentage",
4108                 .lname  = "Dedupe percentage",
4109                 .type   = FIO_OPT_INT,
4110                 .cb     = str_dedupe_cb,
4111                 .off1   = offsetof(struct thread_options, dedupe_percentage),
4112                 .maxval = 100,
4113                 .minval = 0,
4114                 .help   = "Percentage of buffers that are dedupable",
4115                 .interval = 1,
4116                 .category = FIO_OPT_C_IO,
4117                 .group  = FIO_OPT_G_IO_BUF,
4118         },
4119         {
4120                 .name   = "clat_percentiles",
4121                 .lname  = "Completion latency percentiles",
4122                 .type   = FIO_OPT_BOOL,
4123                 .off1   = offsetof(struct thread_options, clat_percentiles),
4124                 .help   = "Enable the reporting of completion latency percentiles",
4125                 .def    = "1",
4126                 .inverse = "lat_percentiles",
4127                 .category = FIO_OPT_C_STAT,
4128                 .group  = FIO_OPT_G_INVALID,
4129         },
4130         {
4131                 .name   = "lat_percentiles",
4132                 .lname  = "IO latency percentiles",
4133                 .type   = FIO_OPT_BOOL,
4134                 .off1   = offsetof(struct thread_options, lat_percentiles),
4135                 .help   = "Enable the reporting of IO latency percentiles",
4136                 .def    = "0",
4137                 .inverse = "clat_percentiles",
4138                 .category = FIO_OPT_C_STAT,
4139                 .group  = FIO_OPT_G_INVALID,
4140         },
4141         {
4142                 .name   = "percentile_list",
4143                 .lname  = "Percentile list",
4144                 .type   = FIO_OPT_FLOAT_LIST,
4145                 .off1   = offsetof(struct thread_options, percentile_list),
4146                 .off2   = offsetof(struct thread_options, percentile_precision),
4147                 .help   = "Specify a custom list of percentiles to report for "
4148                           "completion latency and block errors",
4149                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
4150                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
4151                 .minfp  = 0.0,
4152                 .maxfp  = 100.0,
4153                 .category = FIO_OPT_C_STAT,
4154                 .group  = FIO_OPT_G_INVALID,
4155         },
4156         {
4157                 .name   = "significant_figures",
4158                 .lname  = "Significant figures",
4159                 .type   = FIO_OPT_INT,
4160                 .off1   = offsetof(struct thread_options, sig_figs),
4161                 .maxval = 10,
4162                 .minval = 1,
4163                 .help   = "Significant figures for output-format set to normal",
4164                 .def    = "4",
4165                 .interval = 1,
4166                 .category = FIO_OPT_C_STAT,
4167                 .group  = FIO_OPT_G_INVALID,
4168         },
4169
4170 #ifdef FIO_HAVE_DISK_UTIL
4171         {
4172                 .name   = "disk_util",
4173                 .lname  = "Disk utilization",
4174                 .type   = FIO_OPT_BOOL,
4175                 .off1   = offsetof(struct thread_options, do_disk_util),
4176                 .help   = "Log disk utilization statistics",
4177                 .def    = "1",
4178                 .category = FIO_OPT_C_STAT,
4179                 .group  = FIO_OPT_G_INVALID,
4180         },
4181 #else
4182         {
4183                 .name   = "disk_util",
4184                 .lname  = "Disk utilization",
4185                 .type   = FIO_OPT_UNSUPPORTED,
4186                 .help   = "Your platform does not support disk utilization",
4187         },
4188 #endif
4189         {
4190                 .name   = "gtod_reduce",
4191                 .lname  = "Reduce gettimeofday() calls",
4192                 .type   = FIO_OPT_BOOL,
4193                 .help   = "Greatly reduce number of gettimeofday() calls",
4194                 .cb     = str_gtod_reduce_cb,
4195                 .def    = "0",
4196                 .hide_on_set = 1,
4197                 .category = FIO_OPT_C_STAT,
4198                 .group  = FIO_OPT_G_INVALID,
4199         },
4200         {
4201                 .name   = "disable_lat",
4202                 .lname  = "Disable all latency stats",
4203                 .type   = FIO_OPT_BOOL,
4204                 .off1   = offsetof(struct thread_options, disable_lat),
4205                 .help   = "Disable latency numbers",
4206                 .parent = "gtod_reduce",
4207                 .hide   = 1,
4208                 .def    = "0",
4209                 .category = FIO_OPT_C_STAT,
4210                 .group  = FIO_OPT_G_INVALID,
4211         },
4212         {
4213                 .name   = "disable_clat",
4214                 .lname  = "Disable completion latency stats",
4215                 .type   = FIO_OPT_BOOL,
4216                 .off1   = offsetof(struct thread_options, disable_clat),
4217                 .help   = "Disable completion latency numbers",
4218                 .parent = "gtod_reduce",
4219                 .hide   = 1,
4220                 .def    = "0",
4221                 .category = FIO_OPT_C_STAT,
4222                 .group  = FIO_OPT_G_INVALID,
4223         },
4224         {
4225                 .name   = "disable_slat",
4226                 .lname  = "Disable submission latency stats",
4227                 .type   = FIO_OPT_BOOL,
4228                 .off1   = offsetof(struct thread_options, disable_slat),
4229                 .help   = "Disable submission latency numbers",
4230                 .parent = "gtod_reduce",
4231                 .hide   = 1,
4232                 .def    = "0",
4233                 .category = FIO_OPT_C_STAT,
4234                 .group  = FIO_OPT_G_INVALID,
4235         },
4236         {
4237                 .name   = "disable_bw_measurement",
4238                 .alias  = "disable_bw",
4239                 .lname  = "Disable bandwidth stats",
4240                 .type   = FIO_OPT_BOOL,
4241                 .off1   = offsetof(struct thread_options, disable_bw),
4242                 .help   = "Disable bandwidth logging",
4243                 .parent = "gtod_reduce",
4244                 .hide   = 1,
4245                 .def    = "0",
4246                 .category = FIO_OPT_C_STAT,
4247                 .group  = FIO_OPT_G_INVALID,
4248         },
4249         {
4250                 .name   = "gtod_cpu",
4251                 .lname  = "Dedicated gettimeofday() CPU",
4252                 .type   = FIO_OPT_INT,
4253                 .off1   = offsetof(struct thread_options, gtod_cpu),
4254                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
4255                 .verify = gtod_cpu_verify,
4256                 .category = FIO_OPT_C_GENERAL,
4257                 .group  = FIO_OPT_G_CLOCK,
4258         },
4259         {
4260                 .name   = "unified_rw_reporting",
4261                 .lname  = "Unified RW Reporting",
4262                 .type   = FIO_OPT_BOOL,
4263                 .off1   = offsetof(struct thread_options, unified_rw_rep),
4264                 .help   = "Unify reporting across data direction",
4265                 .def    = "0",
4266                 .category = FIO_OPT_C_GENERAL,
4267                 .group  = FIO_OPT_G_INVALID,
4268         },
4269         {
4270                 .name   = "continue_on_error",
4271                 .lname  = "Continue on error",
4272                 .type   = FIO_OPT_STR,
4273                 .off1   = offsetof(struct thread_options, continue_on_error),
4274                 .help   = "Continue on non-fatal errors during IO",
4275                 .def    = "none",
4276                 .category = FIO_OPT_C_GENERAL,
4277                 .group  = FIO_OPT_G_ERR,
4278                 .posval = {
4279                           { .ival = "none",
4280                             .oval = ERROR_TYPE_NONE,
4281                             .help = "Exit when an error is encountered",
4282                           },
4283                           { .ival = "read",
4284                             .oval = ERROR_TYPE_READ,
4285                             .help = "Continue on read errors only",
4286                           },
4287                           { .ival = "write",
4288                             .oval = ERROR_TYPE_WRITE,
4289                             .help = "Continue on write errors only",
4290                           },
4291                           { .ival = "io",
4292                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
4293                             .help = "Continue on any IO errors",
4294                           },
4295                           { .ival = "verify",
4296                             .oval = ERROR_TYPE_VERIFY,
4297                             .help = "Continue on verify errors only",
4298                           },
4299                           { .ival = "all",
4300                             .oval = ERROR_TYPE_ANY,
4301                             .help = "Continue on all io and verify errors",
4302                           },
4303                           { .ival = "0",
4304                             .oval = ERROR_TYPE_NONE,
4305                             .help = "Alias for 'none'",
4306                           },
4307                           { .ival = "1",
4308                             .oval = ERROR_TYPE_ANY,
4309                             .help = "Alias for 'all'",
4310                           },
4311                 },
4312         },
4313         {
4314                 .name   = "ignore_error",
4315                 .lname  = "Ignore Error",
4316                 .type   = FIO_OPT_STR,
4317                 .cb     = str_ignore_error_cb,
4318                 .off1   = offsetof(struct thread_options, ignore_error_nr),
4319                 .help   = "Set a specific list of errors to ignore",
4320                 .parent = "rw",
4321                 .category = FIO_OPT_C_GENERAL,
4322                 .group  = FIO_OPT_G_ERR,
4323         },
4324         {
4325                 .name   = "error_dump",
4326                 .lname  = "Error Dump",
4327                 .type   = FIO_OPT_BOOL,
4328                 .off1   = offsetof(struct thread_options, error_dump),
4329                 .def    = "0",
4330                 .help   = "Dump info on each error",
4331                 .category = FIO_OPT_C_GENERAL,
4332                 .group  = FIO_OPT_G_ERR,
4333         },
4334         {
4335                 .name   = "profile",
4336                 .lname  = "Profile",
4337                 .type   = FIO_OPT_STR_STORE,
4338                 .off1   = offsetof(struct thread_options, profile),
4339                 .help   = "Select a specific builtin performance test",
4340                 .category = FIO_OPT_C_PROFILE,
4341                 .group  = FIO_OPT_G_INVALID,
4342         },
4343         {
4344                 .name   = "cgroup",
4345                 .lname  = "Cgroup",
4346                 .type   = FIO_OPT_STR_STORE,
4347                 .off1   = offsetof(struct thread_options, cgroup),
4348                 .help   = "Add job to cgroup of this name",
4349                 .category = FIO_OPT_C_GENERAL,
4350                 .group  = FIO_OPT_G_CGROUP,
4351         },
4352         {
4353                 .name   = "cgroup_nodelete",
4354                 .lname  = "Cgroup no-delete",
4355                 .type   = FIO_OPT_BOOL,
4356                 .off1   = offsetof(struct thread_options, cgroup_nodelete),
4357                 .help   = "Do not delete cgroups after job completion",
4358                 .def    = "0",
4359                 .parent = "cgroup",
4360                 .category = FIO_OPT_C_GENERAL,
4361                 .group  = FIO_OPT_G_CGROUP,
4362         },
4363         {
4364                 .name   = "cgroup_weight",
4365                 .lname  = "Cgroup weight",
4366                 .type   = FIO_OPT_INT,
4367                 .off1   = offsetof(struct thread_options, cgroup_weight),
4368                 .help   = "Use given weight for cgroup",
4369                 .minval = 100,
4370                 .maxval = 1000,
4371                 .parent = "cgroup",
4372                 .category = FIO_OPT_C_GENERAL,
4373                 .group  = FIO_OPT_G_CGROUP,
4374         },
4375         {
4376                 .name   = "uid",
4377                 .lname  = "User ID",
4378                 .type   = FIO_OPT_INT,
4379                 .off1   = offsetof(struct thread_options, uid),
4380                 .help   = "Run job with this user ID",
4381                 .category = FIO_OPT_C_GENERAL,
4382                 .group  = FIO_OPT_G_CRED,
4383         },
4384         {
4385                 .name   = "gid",
4386                 .lname  = "Group ID",
4387                 .type   = FIO_OPT_INT,
4388                 .off1   = offsetof(struct thread_options, gid),
4389                 .help   = "Run job with this group ID",
4390                 .category = FIO_OPT_C_GENERAL,
4391                 .group  = FIO_OPT_G_CRED,
4392         },
4393         {
4394                 .name   = "kb_base",
4395                 .lname  = "KB Base",
4396                 .type   = FIO_OPT_INT,
4397                 .off1   = offsetof(struct thread_options, kb_base),
4398                 .prio   = 1,
4399                 .def    = "1024",
4400                 .posval = {
4401                           { .ival = "1024",
4402                             .oval = 1024,
4403                             .help = "Inputs invert IEC and SI prefixes (for compatibility); outputs prefer binary",
4404                           },
4405                           { .ival = "1000",
4406                             .oval = 1000,
4407                             .help = "Inputs use IEC and SI prefixes; outputs prefer SI",
4408                           },
4409                 },
4410                 .help   = "Unit prefix interpretation for quantities of data (IEC and SI)",
4411                 .category = FIO_OPT_C_GENERAL,
4412                 .group  = FIO_OPT_G_INVALID,
4413         },
4414         {
4415                 .name   = "unit_base",
4416                 .lname  = "Unit for quantities of data (Bits or Bytes)",
4417                 .type   = FIO_OPT_INT,
4418                 .off1   = offsetof(struct thread_options, unit_base),
4419                 .prio   = 1,
4420                 .posval = {
4421                           { .ival = "0",
4422                             .oval = 0,
4423                             .help = "Auto-detect",
4424                           },
4425                           { .ival = "8",
4426                             .oval = 8,
4427                             .help = "Normal (byte based)",
4428                           },
4429                           { .ival = "1",
4430                             .oval = 1,
4431                             .help = "Bit based",
4432                           },
4433                 },
4434                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
4435                 .category = FIO_OPT_C_GENERAL,
4436                 .group  = FIO_OPT_G_INVALID,
4437         },
4438         {
4439                 .name   = "hugepage-size",
4440                 .lname  = "Hugepage size",
4441                 .type   = FIO_OPT_INT,
4442                 .off1   = offsetof(struct thread_options, hugepage_size),
4443                 .help   = "When using hugepages, specify size of each page",
4444                 .def    = __fio_stringify(FIO_HUGE_PAGE),
4445                 .interval = 1024 * 1024,
4446                 .category = FIO_OPT_C_GENERAL,
4447                 .group  = FIO_OPT_G_INVALID,
4448         },
4449         {
4450                 .name   = "flow_id",
4451                 .lname  = "I/O flow ID",
4452                 .type   = FIO_OPT_INT,
4453                 .off1   = offsetof(struct thread_options, flow_id),
4454                 .help   = "The flow index ID to use",
4455                 .def    = "0",
4456                 .category = FIO_OPT_C_IO,
4457                 .group  = FIO_OPT_G_IO_FLOW,
4458         },
4459         {
4460                 .name   = "flow",
4461                 .lname  = "I/O flow weight",
4462                 .type   = FIO_OPT_INT,
4463                 .off1   = offsetof(struct thread_options, flow),
4464                 .help   = "Weight for flow control of this job",
4465                 .parent = "flow_id",
4466                 .hide   = 1,
4467                 .def    = "0",
4468                 .category = FIO_OPT_C_IO,
4469                 .group  = FIO_OPT_G_IO_FLOW,
4470         },
4471         {
4472                 .name   = "flow_watermark",
4473                 .lname  = "I/O flow watermark",
4474                 .type   = FIO_OPT_INT,
4475                 .off1   = offsetof(struct thread_options, flow_watermark),
4476                 .help   = "High watermark for flow control. This option"
4477                         " should be set to the same value for all threads"
4478                         " with non-zero flow.",
4479                 .parent = "flow_id",
4480                 .hide   = 1,
4481                 .def    = "1024",
4482                 .category = FIO_OPT_C_IO,
4483                 .group  = FIO_OPT_G_IO_FLOW,
4484         },
4485         {
4486                 .name   = "flow_sleep",
4487                 .lname  = "I/O flow sleep",
4488                 .type   = FIO_OPT_INT,
4489                 .off1   = offsetof(struct thread_options, flow_sleep),
4490                 .help   = "How many microseconds to sleep after being held"
4491                         " back by the flow control mechanism",
4492                 .parent = "flow_id",
4493                 .hide   = 1,
4494                 .def    = "0",
4495                 .category = FIO_OPT_C_IO,
4496                 .group  = FIO_OPT_G_IO_FLOW,
4497         },
4498         {
4499                 .name   = "steadystate",
4500                 .lname  = "Steady state threshold",
4501                 .alias  = "ss",
4502                 .type   = FIO_OPT_STR,
4503                 .off1   = offsetof(struct thread_options, ss_state),
4504                 .cb     = str_steadystate_cb,
4505                 .help   = "Define the criterion and limit to judge when a job has reached steady state",
4506                 .def    = "iops_slope:0.01%",
4507                 .posval = {
4508                           { .ival = "iops",
4509                             .oval = FIO_SS_IOPS,
4510                             .help = "maximum mean deviation of IOPS measurements",
4511                           },
4512                           { .ival = "iops_slope",
4513                             .oval = FIO_SS_IOPS_SLOPE,
4514                             .help = "slope calculated from IOPS measurements",
4515                           },
4516                           { .ival = "bw",
4517                             .oval = FIO_SS_BW,
4518                             .help = "maximum mean deviation of bandwidth measurements",
4519                           },
4520                           {
4521                             .ival = "bw_slope",
4522                             .oval = FIO_SS_BW_SLOPE,
4523                             .help = "slope calculated from bandwidth measurements",
4524                           },
4525                 },
4526                 .category = FIO_OPT_C_GENERAL,
4527                 .group  = FIO_OPT_G_RUNTIME,
4528         },
4529         {
4530                 .name   = "steadystate_duration",
4531                 .lname  = "Steady state duration",
4532                 .alias  = "ss_dur",
4533                 .parent = "steadystate",
4534                 .type   = FIO_OPT_STR_VAL_TIME,
4535                 .off1   = offsetof(struct thread_options, ss_dur),
4536                 .help   = "Stop workload upon attaining steady state for specified duration",
4537                 .def    = "0",
4538                 .is_seconds = 1,
4539                 .is_time = 1,
4540                 .category = FIO_OPT_C_GENERAL,
4541                 .group  = FIO_OPT_G_RUNTIME,
4542         },
4543         {
4544                 .name   = "steadystate_ramp_time",
4545                 .lname  = "Steady state ramp time",
4546                 .alias  = "ss_ramp",
4547                 .parent = "steadystate",
4548                 .type   = FIO_OPT_STR_VAL_TIME,
4549                 .off1   = offsetof(struct thread_options, ss_ramp_time),
4550                 .help   = "Delay before initiation of data collection for steady state job termination testing",
4551                 .def    = "0",
4552                 .is_seconds = 1,
4553                 .is_time = 1,
4554                 .category = FIO_OPT_C_GENERAL,
4555                 .group  = FIO_OPT_G_RUNTIME,
4556         },
4557         {
4558                 .name = NULL,
4559         },
4560 };
4561
4562 static void add_to_lopt(struct option *lopt, struct fio_option *o,
4563                         const char *name, int val)
4564 {
4565         lopt->name = (char *) name;
4566         lopt->val = val;
4567         if (o->type == FIO_OPT_STR_SET)
4568                 lopt->has_arg = optional_argument;
4569         else
4570                 lopt->has_arg = required_argument;
4571 }
4572
4573 static void options_to_lopts(struct fio_option *opts,
4574                               struct option *long_options,
4575                               int i, int option_type)
4576 {
4577         struct fio_option *o = &opts[0];
4578         while (o->name) {
4579                 add_to_lopt(&long_options[i], o, o->name, option_type);
4580                 if (o->alias) {
4581                         i++;
4582                         add_to_lopt(&long_options[i], o, o->alias, option_type);
4583                 }
4584
4585                 i++;
4586                 o++;
4587                 assert(i < FIO_NR_OPTIONS);
4588         }
4589 }
4590
4591 void fio_options_set_ioengine_opts(struct option *long_options,
4592                                    struct thread_data *td)
4593 {
4594         unsigned int i;
4595
4596         i = 0;
4597         while (long_options[i].name) {
4598                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
4599                         memset(&long_options[i], 0, sizeof(*long_options));
4600                         break;
4601                 }
4602                 i++;
4603         }
4604
4605         /*
4606          * Just clear out the prior ioengine options.
4607          */
4608         if (!td || !td->eo)
4609                 return;
4610
4611         options_to_lopts(td->io_ops->options, long_options, i,
4612                          FIO_GETOPT_IOENGINE);
4613 }
4614
4615 void fio_options_dup_and_init(struct option *long_options)
4616 {
4617         unsigned int i;
4618
4619         options_init(fio_options);
4620
4621         i = 0;
4622         while (long_options[i].name)
4623                 i++;
4624
4625         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
4626 }
4627
4628 struct fio_keyword {
4629         const char *word;
4630         const char *desc;
4631         char *replace;
4632 };
4633
4634 static struct fio_keyword fio_keywords[] = {
4635         {
4636                 .word   = "$pagesize",
4637                 .desc   = "Page size in the system",
4638         },
4639         {
4640                 .word   = "$mb_memory",
4641                 .desc   = "Megabytes of memory online",
4642         },
4643         {
4644                 .word   = "$ncpus",
4645                 .desc   = "Number of CPUs online in the system",
4646         },
4647         {
4648                 .word   = NULL,
4649         },
4650 };
4651
4652 void fio_keywords_exit(void)
4653 {
4654         struct fio_keyword *kw;
4655
4656         kw = &fio_keywords[0];
4657         while (kw->word) {
4658                 free(kw->replace);
4659                 kw->replace = NULL;
4660                 kw++;
4661         }
4662 }
4663
4664 void fio_keywords_init(void)
4665 {
4666         unsigned long long mb_memory;
4667         char buf[128];
4668         long l;
4669
4670         sprintf(buf, "%lu", (unsigned long) page_size);
4671         fio_keywords[0].replace = strdup(buf);
4672
4673         mb_memory = os_phys_mem() / (1024 * 1024);
4674         sprintf(buf, "%llu", mb_memory);
4675         fio_keywords[1].replace = strdup(buf);
4676
4677         l = cpus_online();
4678         sprintf(buf, "%lu", l);
4679         fio_keywords[2].replace = strdup(buf);
4680 }
4681
4682 #define BC_APP          "bc"
4683
4684 static char *bc_calc(char *str)
4685 {
4686         char buf[128], *tmp;
4687         FILE *f;
4688         int ret;
4689
4690         /*
4691          * No math, just return string
4692          */
4693         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
4694              !strchr(str, '/')) || strchr(str, '\''))
4695                 return str;
4696
4697         /*
4698          * Split option from value, we only need to calculate the value
4699          */
4700         tmp = strchr(str, '=');
4701         if (!tmp)
4702                 return str;
4703
4704         tmp++;
4705
4706         /*
4707          * Prevent buffer overflows; such a case isn't reasonable anyway
4708          */
4709         if (strlen(str) >= 128 || strlen(tmp) > 100)
4710                 return str;
4711
4712         sprintf(buf, "which %s > /dev/null", BC_APP);
4713         if (system(buf)) {
4714                 log_err("fio: bc is needed for performing math\n");
4715                 return NULL;
4716         }
4717
4718         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
4719         f = popen(buf, "r");
4720         if (!f)
4721                 return NULL;
4722
4723         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
4724         if (ret <= 0) {
4725                 pclose(f);
4726                 return NULL;
4727         }
4728
4729         pclose(f);
4730         buf[(tmp - str) + ret - 1] = '\0';
4731         memcpy(buf, str, tmp - str);
4732         free(str);
4733         return strdup(buf);
4734 }
4735
4736 /*
4737  * Return a copy of the input string with substrings of the form ${VARNAME}
4738  * substituted with the value of the environment variable VARNAME.  The
4739  * substitution always occurs, even if VARNAME is empty or the corresponding
4740  * environment variable undefined.
4741  */
4742 static char *option_dup_subs(const char *opt)
4743 {
4744         char out[OPT_LEN_MAX+1];
4745         char in[OPT_LEN_MAX+1];
4746         char *outptr = out;
4747         char *inptr = in;
4748         char *ch1, *ch2, *env;
4749         ssize_t nchr = OPT_LEN_MAX;
4750         size_t envlen;
4751
4752         if (strlen(opt) + 1 > OPT_LEN_MAX) {
4753                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
4754                 return NULL;
4755         }
4756
4757         in[OPT_LEN_MAX] = '\0';
4758         strncpy(in, opt, OPT_LEN_MAX);
4759
4760         while (*inptr && nchr > 0) {
4761                 if (inptr[0] == '$' && inptr[1] == '{') {
4762                         ch2 = strchr(inptr, '}');
4763                         if (ch2 && inptr+1 < ch2) {
4764                                 ch1 = inptr+2;
4765                                 inptr = ch2+1;
4766                                 *ch2 = '\0';
4767
4768                                 env = getenv(ch1);
4769                                 if (env) {
4770                                         envlen = strlen(env);
4771                                         if (envlen <= nchr) {
4772                                                 memcpy(outptr, env, envlen);
4773                                                 outptr += envlen;
4774                                                 nchr -= envlen;
4775                                         }
4776                                 }
4777
4778                                 continue;
4779                         }
4780                 }
4781
4782                 *outptr++ = *inptr++;
4783                 --nchr;
4784         }
4785
4786         *outptr = '\0';
4787         return strdup(out);
4788 }
4789
4790 /*
4791  * Look for reserved variable names and replace them with real values
4792  */
4793 static char *fio_keyword_replace(char *opt)
4794 {
4795         char *s;
4796         int i;
4797         int docalc = 0;
4798
4799         for (i = 0; fio_keywords[i].word != NULL; i++) {
4800                 struct fio_keyword *kw = &fio_keywords[i];
4801
4802                 while ((s = strstr(opt, kw->word)) != NULL) {
4803                         char *new = malloc(strlen(opt) + 1);
4804                         char *o_org = opt;
4805                         int olen = s - opt;
4806                         int len;
4807
4808                         /*
4809                          * Copy part of the string before the keyword and
4810                          * sprintf() the replacement after it.
4811                          */
4812                         memcpy(new, opt, olen);
4813                         len = sprintf(new + olen, "%s", kw->replace);
4814
4815                         /*
4816                          * If there's more in the original string, copy that
4817                          * in too
4818                          */
4819                         opt += strlen(kw->word) + olen;
4820                         if (strlen(opt))
4821                                 memcpy(new + olen + len, opt, opt - o_org - 1);
4822
4823                         /*
4824                          * replace opt and free the old opt
4825                          */
4826                         opt = new;
4827                         free(o_org);
4828
4829                         docalc = 1;
4830                 }
4831         }
4832
4833         /*
4834          * Check for potential math and invoke bc, if possible
4835          */
4836         if (docalc)
4837                 opt = bc_calc(opt);
4838
4839         return opt;
4840 }
4841
4842 static char **dup_and_sub_options(char **opts, int num_opts)
4843 {
4844         int i;
4845         char **opts_copy = malloc(num_opts * sizeof(*opts));
4846         for (i = 0; i < num_opts; i++) {
4847                 opts_copy[i] = option_dup_subs(opts[i]);
4848                 if (!opts_copy[i])
4849                         continue;
4850                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
4851         }
4852         return opts_copy;
4853 }
4854
4855 static void show_closest_option(const char *opt)
4856 {
4857         int best_option, best_distance;
4858         int i, distance;
4859         char *name;
4860
4861         if (!strlen(opt))
4862                 return;
4863
4864         name = strdup(opt);
4865         i = 0;
4866         while (name[i] != '\0' && name[i] != '=')
4867                 i++;
4868         name[i] = '\0';
4869
4870         best_option = -1;
4871         best_distance = INT_MAX;
4872         i = 0;
4873         while (fio_options[i].name) {
4874                 distance = string_distance(name, fio_options[i].name);
4875                 if (distance < best_distance) {
4876                         best_distance = distance;
4877                         best_option = i;
4878                 }
4879                 i++;
4880         }
4881
4882         if (best_option != -1 && string_distance_ok(name, best_distance) &&
4883             fio_options[best_option].type != FIO_OPT_UNSUPPORTED)
4884                 log_err("Did you mean %s?\n", fio_options[best_option].name);
4885
4886         free(name);
4887 }
4888
4889 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
4890 {
4891         int i, ret, unknown;
4892         char **opts_copy;
4893
4894         sort_options(opts, fio_options, num_opts);
4895         opts_copy = dup_and_sub_options(opts, num_opts);
4896
4897         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
4898                 struct fio_option *o;
4899                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
4900                                                 &o, &td->o, &td->opt_list);
4901
4902                 if (!newret && o)
4903                         fio_option_mark_set(&td->o, o);
4904
4905                 if (opts_copy[i]) {
4906                         if (newret && !o) {
4907                                 unknown++;
4908                                 continue;
4909                         }
4910                         free(opts_copy[i]);
4911                         opts_copy[i] = NULL;
4912                 }
4913
4914                 ret |= newret;
4915         }
4916
4917         if (unknown) {
4918                 ret |= ioengine_load(td);
4919                 if (td->eo) {
4920                         sort_options(opts_copy, td->io_ops->options, num_opts);
4921                         opts = opts_copy;
4922                 }
4923                 for (i = 0; i < num_opts; i++) {
4924                         struct fio_option *o = NULL;
4925                         int newret = 1;
4926
4927                         if (!opts_copy[i])
4928                                 continue;
4929
4930                         if (td->eo)
4931                                 newret = parse_option(opts_copy[i], opts[i],
4932                                                       td->io_ops->options, &o,
4933                                                       td->eo, &td->opt_list);
4934
4935                         ret |= newret;
4936                         if (!o) {
4937                                 log_err("Bad option <%s>\n", opts[i]);
4938                                 show_closest_option(opts[i]);
4939                         }
4940                         free(opts_copy[i]);
4941                         opts_copy[i] = NULL;
4942                 }
4943         }
4944
4945         free(opts_copy);
4946         return ret;
4947 }
4948
4949 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
4950 {
4951         int ret;
4952
4953         ret = parse_cmd_option(opt, val, fio_options, &td->o, &td->opt_list);
4954         if (!ret) {
4955                 struct fio_option *o;
4956
4957                 o = find_option(fio_options, opt);
4958                 if (o)
4959                         fio_option_mark_set(&td->o, o);
4960         }
4961
4962         return ret;
4963 }
4964
4965 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
4966                                 char *val)
4967 {
4968         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
4969                                         &td->opt_list);
4970 }
4971
4972 void fio_fill_default_options(struct thread_data *td)
4973 {
4974         td->o.magic = OPT_MAGIC;
4975         fill_default_options(&td->o, fio_options);
4976 }
4977
4978 int fio_show_option_help(const char *opt)
4979 {
4980         return show_cmd_help(fio_options, opt);
4981 }
4982
4983 /*
4984  * dupe FIO_OPT_STR_STORE options
4985  */
4986 void fio_options_mem_dupe(struct thread_data *td)
4987 {
4988         options_mem_dupe(fio_options, &td->o);
4989
4990         if (td->eo && td->io_ops) {
4991                 void *oldeo = td->eo;
4992
4993                 td->eo = malloc(td->io_ops->option_struct_size);
4994                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
4995                 options_mem_dupe(td->io_ops->options, td->eo);
4996         }
4997 }
4998
4999 unsigned int fio_get_kb_base(void *data)
5000 {
5001         struct thread_data *td = cb_data_to_td(data);
5002         struct thread_options *o = &td->o;
5003         unsigned int kb_base = 0;
5004
5005         /*
5006          * This is a hack... For private options, *data is not holding
5007          * a pointer to the thread_options, but to private data. This means
5008          * we can't safely dereference it, but magic is first so mem wise
5009          * it is valid. But this also means that if the job first sets
5010          * kb_base and expects that to be honored by private options,
5011          * it will be disappointed. We will return the global default
5012          * for this.
5013          */
5014         if (o && o->magic == OPT_MAGIC)
5015                 kb_base = o->kb_base;
5016         if (!kb_base)
5017                 kb_base = 1024;
5018
5019         return kb_base;
5020 }
5021
5022 int add_option(struct fio_option *o)
5023 {
5024         struct fio_option *__o;
5025         int opt_index = 0;
5026
5027         __o = fio_options;
5028         while (__o->name) {
5029                 opt_index++;
5030                 __o++;
5031         }
5032
5033         if (opt_index + 1 == FIO_MAX_OPTS) {
5034                 log_err("fio: FIO_MAX_OPTS is too small\n");
5035                 return 1;
5036         }
5037
5038         memcpy(&fio_options[opt_index], o, sizeof(*o));
5039         fio_options[opt_index + 1].name = NULL;
5040         return 0;
5041 }
5042
5043 void invalidate_profile_options(const char *prof_name)
5044 {
5045         struct fio_option *o;
5046
5047         o = fio_options;
5048         while (o->name) {
5049                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
5050                         o->type = FIO_OPT_INVALID;
5051                         o->prof_name = NULL;
5052                 }
5053                 o++;
5054         }
5055 }
5056
5057 void add_opt_posval(const char *optname, const char *ival, const char *help)
5058 {
5059         struct fio_option *o;
5060         unsigned int i;
5061
5062         o = find_option(fio_options, optname);
5063         if (!o)
5064                 return;
5065
5066         for (i = 0; i < PARSE_MAX_VP; i++) {
5067                 if (o->posval[i].ival)
5068                         continue;
5069
5070                 o->posval[i].ival = ival;
5071                 o->posval[i].help = help;
5072                 break;
5073         }
5074 }
5075
5076 void del_opt_posval(const char *optname, const char *ival)
5077 {
5078         struct fio_option *o;
5079         unsigned int i;
5080
5081         o = find_option(fio_options, optname);
5082         if (!o)
5083                 return;
5084
5085         for (i = 0; i < PARSE_MAX_VP; i++) {
5086                 if (!o->posval[i].ival)
5087                         continue;
5088                 if (strcmp(o->posval[i].ival, ival))
5089                         continue;
5090
5091                 o->posval[i].ival = NULL;
5092                 o->posval[i].help = NULL;
5093         }
5094 }
5095
5096 void fio_options_free(struct thread_data *td)
5097 {
5098         options_free(fio_options, &td->o);
5099         if (td->eo && td->io_ops && td->io_ops->options) {
5100                 options_free(td->io_ops->options, td->eo);
5101                 free(td->eo);
5102                 td->eo = NULL;
5103         }
5104 }
5105
5106 struct fio_option *fio_option_find(const char *name)
5107 {
5108         return find_option(fio_options, name);
5109 }
5110
5111 static struct fio_option *find_next_opt(struct thread_options *o,
5112                                         struct fio_option *from,
5113                                         unsigned int off1)
5114 {
5115         struct fio_option *opt;
5116
5117         if (!from)
5118                 from = &fio_options[0];
5119         else
5120                 from++;
5121
5122         opt = NULL;
5123         do {
5124                 if (off1 == from->off1) {
5125                         opt = from;
5126                         break;
5127                 }
5128                 from++;
5129         } while (from->name);
5130
5131         return opt;
5132 }
5133
5134 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
5135 {
5136         unsigned int opt_off, index, offset;
5137
5138         opt_off = opt - &fio_options[0];
5139         index = opt_off / (8 * sizeof(uint64_t));
5140         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5141         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
5142 }
5143
5144 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
5145 {
5146         struct fio_option *opt, *next;
5147
5148         next = NULL;
5149         while ((opt = find_next_opt(o, next, off1)) != NULL) {
5150                 if (opt_is_set(o, opt))
5151                         return true;
5152
5153                 next = opt;
5154         }
5155
5156         return false;
5157 }
5158
5159 void fio_option_mark_set(struct thread_options *o, struct fio_option *opt)
5160 {
5161         unsigned int opt_off, index, offset;
5162
5163         opt_off = opt - &fio_options[0];
5164         index = opt_off / (8 * sizeof(uint64_t));
5165         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5166         o->set_options[index] |= (uint64_t)1 << offset;
5167 }