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
  12 #include "fio.h"
  13 #include "verify.h"
  14 #include "parse.h"
  15 #include "lib/fls.h"
  16 #include "options.h"
  17
  18 #include "crc/crc32c.h"
  19
  20 /*
  21  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  22  */
  23 static char *get_opt_postfix(const char *str)
  24 {
  25         char *p = strstr(str, ":");
  26
  27         if (!p)
  28                 return NULL;
  29
  30         p++;
  31         strip_blank_front(&p);
  32         strip_blank_end(p);
  33         return strdup(p);
  34 }
  35
  36 static int converthexchartoint(char a)
  37 {
  38         int base;
  39
  40         switch (a) {
  41         case '0'...'9':
  42                 base = '0';
  43                 break;
  44         case 'A'...'F':
  45                 base = 'A' - 10;
  46                 break;
  47         case 'a'...'f':
  48                 base = 'a' - 10;
  49                 break;
  50         default:
  51                 base = 0;
  52         }
  53         return a - base;
  54 }
  55
  56 static int bs_cmp(const void *p1, const void *p2)
  57 {
  58         const struct bssplit *bsp1 = p1;
  59         const struct bssplit *bsp2 = p2;
  60
  61         return bsp1->perc < bsp2->perc;
  62 }
  63
  64 static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
  65 {
  66         struct bssplit *bssplit;
  67         unsigned int i, perc, perc_missing;
  68         unsigned int max_bs, min_bs;
  69         long long val;
  70         char *fname;
  71
  72         o->bssplit_nr[ddir] = 4;
  73         bssplit = malloc(4 * sizeof(struct bssplit));
  74
  75         i = 0;
  76         max_bs = 0;
  77         min_bs = -1;
  78         while ((fname = strsep(&str, ":")) != NULL) {
  79                 char *perc_str;
  80
  81                 if (!strlen(fname))
  82                         break;
  83
  84                 /*
  85                  * grow struct buffer, if needed
  86                  */
  87                 if (i == o->bssplit_nr[ddir]) {
  88                         o->bssplit_nr[ddir] <<= 1;
  89                         bssplit = realloc(bssplit, o->bssplit_nr[ddir]
  90                                                   * sizeof(struct bssplit));
  91                 }
  92
  93                 perc_str = strstr(fname, "/");
  94                 if (perc_str) {
  95                         *perc_str = '\0';
  96                         perc_str++;
  97                         perc = atoi(perc_str);
  98                         if (perc > 100)
  99                                 perc = 100;
 100                         else if (!perc)
 101                                 perc = -1;
 102                 } else
 103                         perc = -1;
 104
 105                 if (str_to_decimal(fname, &val, 1, o)) {
 106                         log_err("fio: bssplit conversion failed\n");
 107                         free(o->bssplit);
 108                         return 1;
 109                 }
 110
 111                 if (val > max_bs)
 112                         max_bs = val;
 113                 if (val < min_bs)
 114                         min_bs = val;
 115
 116                 bssplit[i].bs = val;
 117                 bssplit[i].perc = perc;
 118                 i++;
 119         }
 120
 121         o->bssplit_nr[ddir] = i;
 122
 123         /*
 124          * Now check if the percentages add up, and how much is missing
 125          */
 126         perc = perc_missing = 0;
 127         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 128                 struct bssplit *bsp = &bssplit[i];
 129
 130                 if (bsp->perc == (unsigned char) -1)
 131                         perc_missing++;
 132                 else
 133                         perc += bsp->perc;
 134         }
 135
 136         if (perc > 100) {
 137                 log_err("fio: bssplit percentages add to more than 100%%\n");
 138                 free(bssplit);
 139                 return 1;
 140         }
 141         /*
 142          * If values didn't have a percentage set, divide the remains between
 143          * them.
 144          */
 145         if (perc_missing) {
 146                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 147                         struct bssplit *bsp = &bssplit[i];
 148
 149                         if (bsp->perc == (unsigned char) -1)
 150                                 bsp->perc = (100 - perc) / perc_missing;
 151                 }
 152         }
 153
 154         o->min_bs[ddir] = min_bs;
 155         o->max_bs[ddir] = max_bs;
 156
 157         /*
 158          * now sort based on percentages, for ease of lookup
 159          */
 160         qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 161         o->bssplit[ddir] = bssplit;
 162         return 0;
 163 }
 164
 165 static int str_bssplit_cb(void *data, const char *input)
 166 {
 167         struct thread_data *td = data;
 168         char *str, *p, *odir, *ddir;
 169         int ret = 0;
 170
 171         p = str = strdup(input);
 172
 173         strip_blank_front(&str);
 174         strip_blank_end(str);
 175
 176         odir = strchr(str, ',');
 177         if (odir) {
 178                 ddir = strchr(odir + 1, ',');
 179                 if (ddir) {
 180                         ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
 181                         if (!ret)
 182                                 *ddir = '\0';
 183                 } else {
 184                         char *op;
 185
 186                         op = strdup(odir + 1);
 187                         ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
 188
 189                         free(op);
 190                 }
 191                 if (!ret)
 192                         ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
 193                 if (!ret) {
 194                         *odir = '\0';
 195                         ret = bssplit_ddir(&td->o, DDIR_READ, str);
 196                 }
 197         } else {
 198                 char *op;
 199
 200                 op = strdup(str);
 201                 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
 202                 free(op);
 203
 204                 if (!ret) {
 205                         op = strdup(str);
 206                         ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
 207                         free(op);
 208                 }
 209                 ret = bssplit_ddir(&td->o, DDIR_READ, str);
 210         }
 211
 212         free(p);
 213         return ret;
 214 }
 215
 216 static int str2error(char *str)
 217 {
 218         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
 219                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
 220                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
 221                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
 222                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
 223                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
 224                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
 225                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
 226         int i = 0, num = sizeof(err) / sizeof(void *);
 227
 228         while (i < num) {
 229                 if (!strcmp(err[i], str))
 230                         return i + 1;
 231                 i++;
 232         }
 233         return 0;
 234 }
 235
 236 static int ignore_error_type(struct thread_data *td, int etype, char *str)
 237 {
 238         unsigned int i;
 239         int *error;
 240         char *fname;
 241
 242         if (etype >= ERROR_TYPE_CNT) {
 243                 log_err("Illegal error type\n");
 244                 return 1;
 245         }
 246
 247         td->o.ignore_error_nr[etype] = 4;
 248         error = malloc(4 * sizeof(struct bssplit));
 249
 250         i = 0;
 251         while ((fname = strsep(&str, ":")) != NULL) {
 252
 253                 if (!strlen(fname))
 254                         break;
 255
 256                 /*
 257                  * grow struct buffer, if needed
 258                  */
 259                 if (i == td->o.ignore_error_nr[etype]) {
 260                         td->o.ignore_error_nr[etype] <<= 1;
 261                         error = realloc(error, td->o.ignore_error_nr[etype]
 262                                                   * sizeof(int));
 263                 }
 264                 if (fname[0] == 'E') {
 265                         error[i] = str2error(fname);
 266                 } else {
 267                         error[i] = atoi(fname);
 268                         if (error[i] < 0)
 269                                 error[i] = error[i];
 270                 }
 271                 if (!error[i]) {
 272                         log_err("Unknown error %s, please use number value \n",
 273                                   fname);
 274                         return 1;
 275                 }
 276                 i++;
 277         }
 278         if (i) {
 279                 td->o.continue_on_error |= 1 << etype;
 280                 td->o.ignore_error_nr[etype] = i;
 281                 td->o.ignore_error[etype] = error;
 282         }
 283         return 0;
 284
 285 }
 286
 287 static int str_ignore_error_cb(void *data, const char *input)
 288 {
 289         struct thread_data *td = data;
 290         char *str, *p, *n;
 291         int type = 0, ret = 1;
 292         p = str = strdup(input);
 293
 294         strip_blank_front(&str);
 295         strip_blank_end(str);
 296
 297         while (p) {
 298                 n = strchr(p, ',');
 299                 if (n)
 300                         *n++ = '\0';
 301                 ret = ignore_error_type(td, type, p);
 302                 if (ret)
 303                         break;
 304                 p = n;
 305                 type++;
 306         }
 307         free(str);
 308         return ret;
 309 }
 310
 311 static int str_rw_cb(void *data, const char *str)
 312 {
 313         struct thread_data *td = data;
 314         struct thread_options *o = &td->o;
 315         char *nr = get_opt_postfix(str);
 316
 317         o->ddir_seq_nr = 1;
 318         o->ddir_seq_add = 0;
 319
 320         if (!nr)
 321                 return 0;
 322
 323         if (td_random(td))
 324                 o->ddir_seq_nr = atoi(nr);
 325         else {
 326                 long long val;
 327
 328                 if (str_to_decimal(nr, &val, 1, o)) {
 329                         log_err("fio: rw postfix parsing failed\n");
 330                         free(nr);
 331                         return 1;
 332                 }
 333
 334                 o->ddir_seq_add = val;
 335         }
 336
 337         free(nr);
 338         return 0;
 339 }
 340
 341 static int str_mem_cb(void *data, const char *mem)
 342 {
 343         struct thread_data *td = data;
 344         struct thread_options *o = &td->o;
 345
 346         if (o->mem_type == MEM_MMAPHUGE || o->mem_type == MEM_MMAP) {
 347                 o->mmapfile = get_opt_postfix(mem);
 348                 if (o->mem_type == MEM_MMAPHUGE && !o->mmapfile) {
 349                         log_err("fio: mmaphuge:/path/to/file\n");
 350                         return 1;
 351                 }
 352         }
 353
 354         return 0;
 355 }
 356
 357 static int fio_clock_source_cb(void *data, const char *str)
 358 {
 359         struct thread_data *td = data;
 360
 361         fio_clock_source = td->o.clocksource;
 362         fio_clock_source_set = 1;
 363         fio_clock_init();
 364         return 0;
 365 }
 366
 367 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 368 {
 369         struct thread_data *td = data;
 370
 371         td->o.rwmix[DDIR_READ] = *val;
 372         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 373         return 0;
 374 }
 375
 376 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 377 {
 378         struct thread_data *td = data;
 379
 380         td->o.rwmix[DDIR_WRITE] = *val;
 381         td->o.rwmix[DDIR_READ] = 100 - *val;
 382         return 0;
 383 }
 384
 385 static int str_exitall_cb(void)
 386 {
 387         exitall_on_terminate = 1;
 388         return 0;
 389 }
 390
 391 #ifdef FIO_HAVE_CPU_AFFINITY
 392 static int str_cpumask_cb(void *data, unsigned long long *val)
 393 {
 394         struct thread_data *td = data;
 395         unsigned int i;
 396         long max_cpu;
 397         int ret;
 398
 399         ret = fio_cpuset_init(&td->o.cpumask);
 400         if (ret < 0) {
 401                 log_err("fio: cpuset_init failed\n");
 402                 td_verror(td, ret, "fio_cpuset_init");
 403                 return 1;
 404         }
 405
 406         max_cpu = cpus_online();
 407
 408         for (i = 0; i < sizeof(int) * 8; i++) {
 409                 if ((1 << i) & *val) {
 410                         if (i > max_cpu) {
 411                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 412                                                                 max_cpu);
 413                                 return 1;
 414                         }
 415                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 416                         fio_cpu_set(&td->o.cpumask, i);
 417                 }
 418         }
 419
 420         td->o.cpumask_set = 1;
 421         return 0;
 422 }
 423
 424 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 425                             const char *input)
 426 {
 427         char *cpu, *str, *p;
 428         long max_cpu;
 429         int ret = 0;
 430
 431         ret = fio_cpuset_init(mask);
 432         if (ret < 0) {
 433                 log_err("fio: cpuset_init failed\n");
 434                 td_verror(td, ret, "fio_cpuset_init");
 435                 return 1;
 436         }
 437
 438         p = str = strdup(input);
 439
 440         strip_blank_front(&str);
 441         strip_blank_end(str);
 442
 443         max_cpu = cpus_online();
 444
 445         while ((cpu = strsep(&str, ",")) != NULL) {
 446                 char *str2, *cpu2;
 447                 int icpu, icpu2;
 448
 449                 if (!strlen(cpu))
 450                         break;
 451
 452                 str2 = cpu;
 453                 icpu2 = -1;
 454                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 455                         if (!strlen(cpu2))
 456                                 break;
 457
 458                         icpu2 = atoi(cpu2);
 459                 }
 460
 461                 icpu = atoi(cpu);
 462                 if (icpu2 == -1)
 463                         icpu2 = icpu;
 464                 while (icpu <= icpu2) {
 465                         if (icpu >= FIO_MAX_CPUS) {
 466                                 log_err("fio: your OS only supports up to"
 467                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 468                                 ret = 1;
 469                                 break;
 470                         }
 471                         if (icpu > max_cpu) {
 472                                 log_err("fio: CPU %d too large (max=%ld)\n",
 473                                                         icpu, max_cpu);
 474                                 ret = 1;
 475                                 break;
 476                         }
 477
 478                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 479                         fio_cpu_set(mask, icpu);
 480                         icpu++;
 481                 }
 482                 if (ret)
 483                         break;
 484         }
 485
 486         free(p);
 487         if (!ret)
 488                 td->o.cpumask_set = 1;
 489         return ret;
 490 }
 491
 492 static int str_cpus_allowed_cb(void *data, const char *input)
 493 {
 494         struct thread_data *td = data;
 495         int ret;
 496
 497         ret = set_cpus_allowed(td, &td->o.cpumask, input);
 498         if (!ret)
 499                 td->o.cpumask_set = 1;
 500
 501         return ret;
 502 }
 503
 504 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 505 {
 506         struct thread_data *td = data;
 507         int ret;
 508
 509         ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
 510         if (!ret)
 511                 td->o.verify_cpumask_set = 1;
 512
 513         return ret;
 514 }
 515 #endif
 516
 517 #ifdef FIO_HAVE_LIBNUMA
 518 static int str_numa_cpunodes_cb(void *data, char *input)
 519 {
 520         struct thread_data *td = data;
 521
 522         /* numa_parse_nodestring() parses a character string list
 523          * of nodes into a bit mask. The bit mask is allocated by
 524          * numa_allocate_nodemask(), so it should be freed by
 525          * numa_free_nodemask().
 526          */
 527         td->o.numa_cpunodesmask = numa_parse_nodestring(input);
 528         if (td->o.numa_cpunodesmask == NULL) {
 529                 log_err("fio: numa_parse_nodestring failed\n");
 530                 td_verror(td, 1, "str_numa_cpunodes_cb");
 531                 return 1;
 532         }
 533
 534         td->o.numa_cpumask_set = 1;
 535         return 0;
 536 }
 537
 538 static int str_numa_mpol_cb(void *data, char *input)
 539 {
 540         struct thread_data *td = data;
 541         const char * const policy_types[] =
 542                 { "default", "prefer", "bind", "interleave", "local" };
 543         int i;
 544
 545         char *nodelist = strchr(input, ':');
 546         if (nodelist) {
 547                 /* NUL-terminate mode */
 548                 *nodelist++ = '\0';
 549         }
 550
 551         for (i = 0; i <= MPOL_LOCAL; i++) {
 552                 if (!strcmp(input, policy_types[i])) {
 553                         td->o.numa_mem_mode = i;
 554                         break;
 555                 }
 556         }
 557         if (i > MPOL_LOCAL) {
 558                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
 559                 goto out;
 560         }
 561
 562         switch (td->o.numa_mem_mode) {
 563         case MPOL_PREFERRED:
 564                 /*
 565                  * Insist on a nodelist of one node only
 566                  */
 567                 if (nodelist) {
 568                         char *rest = nodelist;
 569                         while (isdigit(*rest))
 570                                 rest++;
 571                         if (*rest) {
 572                                 log_err("fio: one node only for \'prefer\'\n");
 573                                 goto out;
 574                         }
 575                 } else {
 576                         log_err("fio: one node is needed for \'prefer\'\n");
 577                         goto out;
 578                 }
 579                 break;
 580         case MPOL_INTERLEAVE:
 581                 /*
 582                  * Default to online nodes with memory if no nodelist
 583                  */
 584                 if (!nodelist)
 585                         nodelist = strdup("all");
 586                 break;
 587         case MPOL_LOCAL:
 588         case MPOL_DEFAULT:
 589                 /*
 590                  * Don't allow a nodelist
 591                  */
 592                 if (nodelist) {
 593                         log_err("fio: NO nodelist for \'local\'\n");
 594                         goto out;
 595                 }
 596                 break;
 597         case MPOL_BIND:
 598                 /*
 599                  * Insist on a nodelist
 600                  */
 601                 if (!nodelist) {
 602                         log_err("fio: a nodelist is needed for \'bind\'\n");
 603                         goto out;
 604                 }
 605                 break;
 606         }
 607
 608
 609         /* numa_parse_nodestring() parses a character string list
 610          * of nodes into a bit mask. The bit mask is allocated by
 611          * numa_allocate_nodemask(), so it should be freed by
 612          * numa_free_nodemask().
 613          */
 614         switch (td->o.numa_mem_mode) {
 615         case MPOL_PREFERRED:
 616                 td->o.numa_mem_prefer_node = atoi(nodelist);
 617                 break;
 618         case MPOL_INTERLEAVE:
 619         case MPOL_BIND:
 620                 td->o.numa_memnodesmask = numa_parse_nodestring(nodelist);
 621                 if (td->o.numa_memnodesmask == NULL) {
 622                         log_err("fio: numa_parse_nodestring failed\n");
 623                         td_verror(td, 1, "str_numa_memnodes_cb");
 624                         return 1;
 625                 }
 626                 break;
 627         case MPOL_LOCAL:
 628         case MPOL_DEFAULT:
 629         default:
 630                 break;
 631         }
 632
 633         td->o.numa_memmask_set = 1;
 634         return 0;
 635
 636 out:
 637         return 1;
 638 }
 639 #endif
 640
 641 static int str_fst_cb(void *data, const char *str)
 642 {
 643         struct thread_data *td = data;
 644         char *nr = get_opt_postfix(str);
 645
 646         td->file_service_nr = 1;
 647         if (nr) {
 648                 td->file_service_nr = atoi(nr);
 649                 free(nr);
 650         }
 651
 652         return 0;
 653 }
 654
 655 #ifdef FIO_HAVE_SYNC_FILE_RANGE
 656 static int str_sfr_cb(void *data, const char *str)
 657 {
 658         struct thread_data *td = data;
 659         char *nr = get_opt_postfix(str);
 660
 661         td->sync_file_range_nr = 1;
 662         if (nr) {
 663                 td->sync_file_range_nr = atoi(nr);
 664                 free(nr);
 665         }
 666
 667         return 0;
 668 }
 669 #endif
 670
 671 static int str_random_distribution_cb(void *data, const char *str)
 672 {
 673         struct thread_data *td = data;
 674         double val;
 675         char *nr;
 676
 677         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
 678                 val = 1.1;
 679         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
 680                 val = 0.2;
 681         else
 682                 return 0;
 683
 684         nr = get_opt_postfix(str);
 685         if (nr && !str_to_float(nr, &val)) {
 686                 log_err("fio: random postfix parsing failed\n");
 687                 free(nr);
 688                 return 1;
 689         }
 690
 691         free(nr);
 692
 693         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
 694                 if (val == 1.00) {
 695                         log_err("fio: zipf theta must different than 1.0\n");
 696                         return 1;
 697                 }
 698                 td->o.zipf_theta.u.f = val;
 699         } else {
 700                 if (val <= 0.00 || val >= 1.00) {
 701                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
 702                         return 1;
 703                 }
 704                 td->o.pareto_h.u.f = val;
 705         }
 706
 707         return 0;
 708 }
 709
 710 /*
 711  * Return next file in the string. Files are separated with ':'. If the ':'
 712  * is escaped with a '\', then that ':' is part of the filename and does not
 713  * indicate a new file.
 714  */
 715 static char *get_next_file_name(char **ptr)
 716 {
 717         char *str = *ptr;
 718         char *p, *start;
 719
 720         if (!str || !strlen(str))
 721                 return NULL;
 722
 723         start = str;
 724         do {
 725                 /*
 726                  * No colon, we are done
 727                  */
 728                 p = strchr(str, ':');
 729                 if (!p) {
 730                         *ptr = NULL;
 731                         break;
 732                 }
 733
 734                 /*
 735                  * We got a colon, but it's the first character. Skip and
 736                  * continue
 737                  */
 738                 if (p == start) {
 739                         str = ++start;
 740                         continue;
 741                 }
 742
 743                 if (*(p - 1) != '\\') {
 744                         *p = '\0';
 745                         *ptr = p + 1;
 746                         break;
 747                 }
 748
 749                 memmove(p - 1, p, strlen(p) + 1);
 750                 str = p;
 751         } while (1);
 752
 753         return start;
 754 }
 755
 756 static int str_filename_cb(void *data, const char *input)
 757 {
 758         struct thread_data *td = data;
 759         char *fname, *str, *p;
 760
 761         p = str = strdup(input);
 762
 763         strip_blank_front(&str);
 764         strip_blank_end(str);
 765
 766         if (!td->files_index)
 767                 td->o.nr_files = 0;
 768
 769         while ((fname = get_next_file_name(&str)) != NULL) {
 770                 if (!strlen(fname))
 771                         break;
 772                 add_file(td, fname);
 773                 td->o.nr_files++;
 774         }
 775
 776         free(p);
 777         return 0;
 778 }
 779
 780 static int str_directory_cb(void *data, const char fio_unused *str)
 781 {
 782         struct thread_data *td = data;
 783         struct stat sb;
 784
 785         if (lstat(td->o.directory, &sb) < 0) {
 786                 int ret = errno;
 787
 788                 log_err("fio: %s is not a directory\n", td->o.directory);
 789                 td_verror(td, ret, "lstat");
 790                 return 1;
 791         }
 792         if (!S_ISDIR(sb.st_mode)) {
 793                 log_err("fio: %s is not a directory\n", td->o.directory);
 794                 return 1;
 795         }
 796
 797         return 0;
 798 }
 799
 800 static int str_opendir_cb(void *data, const char fio_unused *str)
 801 {
 802         struct thread_data *td = data;
 803
 804         if (!td->files_index)
 805                 td->o.nr_files = 0;
 806
 807         return add_dir_files(td, td->o.opendir);
 808 }
 809
 810 static int str_verify_pattern_cb(void *data, const char *input)
 811 {
 812         struct thread_data *td = data;
 813         long off;
 814         int i = 0, j = 0, len, k, base = 10;
 815         char *loc1, *loc2;
 816
 817         loc1 = strstr(input, "0x");
 818         loc2 = strstr(input, "0X");
 819         if (loc1 || loc2)
 820                 base = 16;
 821         off = strtol(input, NULL, base);
 822         if (off != LONG_MAX || errno != ERANGE) {
 823                 while (off) {
 824                         td->o.verify_pattern[i] = off & 0xff;
 825                         off >>= 8;
 826                         i++;
 827                 }
 828         } else {
 829                 len = strlen(input);
 830                 k = len - 1;
 831                 if (base == 16) {
 832                         if (loc1)
 833                                 j = loc1 - input + 2;
 834                         else
 835                                 j = loc2 - input + 2;
 836                 } else
 837                         return 1;
 838                 if (len - j < MAX_PATTERN_SIZE * 2) {
 839                         while (k >= j) {
 840                                 off = converthexchartoint(input[k--]);
 841                                 if (k >= j)
 842                                         off += (converthexchartoint(input[k--])
 843                                                 * 16);
 844                                 td->o.verify_pattern[i++] = (char) off;
 845                         }
 846                 }
 847         }
 848
 849         /*
 850          * Fill the pattern all the way to the end. This greatly reduces
 851          * the number of memcpy's we have to do when verifying the IO.
 852          */
 853         while (i > 1 && i * 2 <= MAX_PATTERN_SIZE) {
 854                 memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], i);
 855                 i *= 2;
 856         }
 857         if (i == 1) {
 858                 /*
 859                  * The code in verify_io_u_pattern assumes a single byte pattern
 860                  * fills the whole verify pattern buffer.
 861                  */
 862                 memset(td->o.verify_pattern, td->o.verify_pattern[0],
 863                        MAX_PATTERN_SIZE);
 864         }
 865
 866         td->o.verify_pattern_bytes = i;
 867
 868         /*
 869          * VERIFY_META could already be set
 870          */
 871         if (td->o.verify == VERIFY_NONE)
 872                 td->o.verify = VERIFY_PATTERN;
 873
 874         return 0;
 875 }
 876
 877 static int str_lockfile_cb(void *data, const char *str)
 878 {
 879         struct thread_data *td = data;
 880         char *nr = get_opt_postfix(str);
 881
 882         td->o.lockfile_batch = 1;
 883         if (nr) {
 884                 td->o.lockfile_batch = atoi(nr);
 885                 free(nr);
 886         }
 887
 888         return 0;
 889 }
 890
 891 static int str_gtod_reduce_cb(void *data, int *il)
 892 {
 893         struct thread_data *td = data;
 894         int val = *il;
 895
 896         td->o.disable_lat = !!val;
 897         td->o.disable_clat = !!val;
 898         td->o.disable_slat = !!val;
 899         td->o.disable_bw = !!val;
 900         td->o.clat_percentiles = !val;
 901         if (val)
 902                 td->tv_cache_mask = 63;
 903
 904         return 0;
 905 }
 906
 907 static int str_gtod_cpu_cb(void *data, long long *il)
 908 {
 909         struct thread_data *td = data;
 910         int val = *il;
 911
 912         td->o.gtod_cpu = val;
 913         td->o.gtod_offload = 1;
 914         return 0;
 915 }
 916
 917 static int str_size_cb(void *data, unsigned long long *__val)
 918 {
 919         struct thread_data *td = data;
 920         unsigned long long v = *__val;
 921
 922         if (parse_is_percent(v)) {
 923                 td->o.size = 0;
 924                 td->o.size_percent = -1ULL - v;
 925         } else
 926                 td->o.size = v;
 927
 928         return 0;
 929 }
 930
 931 static int rw_verify(struct fio_option *o, void *data)
 932 {
 933         struct thread_data *td = data;
 934
 935         if (read_only && td_write(td)) {
 936                 log_err("fio: job <%s> has write bit set, but fio is in"
 937                         " read-only mode\n", td->o.name);
 938                 return 1;
 939         }
 940
 941         return 0;
 942 }
 943
 944 static int gtod_cpu_verify(struct fio_option *o, void *data)
 945 {
 946 #ifndef FIO_HAVE_CPU_AFFINITY
 947         struct thread_data *td = data;
 948
 949         if (td->o.gtod_cpu) {
 950                 log_err("fio: platform must support CPU affinity for"
 951                         "gettimeofday() offloading\n");
 952                 return 1;
 953         }
 954 #endif
 955
 956         return 0;
 957 }
 958
 959 static int kb_base_verify(struct fio_option *o, void *data)
 960 {
 961         struct thread_data *td = data;
 962
 963         if (td->o.kb_base != 1024 && td->o.kb_base != 1000) {
 964                 log_err("fio: kb_base set to nonsensical value: %u\n",
 965                                 td->o.kb_base);
 966                 return 1;
 967         }
 968
 969         return 0;
 970 }
 971
 972 /*
 973  * Option grouping
 974  */
 975 static struct opt_group fio_opt_groups[] = {
 976         {
 977                 .name   = "General",
 978                 .mask   = FIO_OPT_C_GENERAL,
 979         },
 980         {
 981                 .name   = "I/O",
 982                 .mask   = FIO_OPT_C_IO,
 983         },
 984         {
 985                 .name   = "File",
 986                 .mask   = FIO_OPT_C_FILE,
 987         },
 988         {
 989                 .name   = "Statistics",
 990                 .mask   = FIO_OPT_C_STAT,
 991         },
 992         {
 993                 .name   = "Logging",
 994                 .mask   = FIO_OPT_C_LOG,
 995         },
 996         {
 997                 .name   = "Profiles",
 998                 .mask   = FIO_OPT_C_PROFILE,
 999         },
1000         {
1001                 .name   = NULL,
1002         },
1003 };
1004
1005 static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1006                                                unsigned int inv_mask)
1007 {
1008         struct opt_group *og;
1009         int i;
1010
1011         if (*mask == inv_mask || !*mask)
1012                 return NULL;
1013
1014         for (i = 0; ogs[i].name; i++) {
1015                 og = &ogs[i];
1016
1017                 if (*mask & og->mask) {
1018                         *mask &= ~(og->mask);
1019                         return og;
1020                 }
1021         }
1022
1023         return NULL;
1024 }
1025
1026 struct opt_group *opt_group_from_mask(unsigned int *mask)
1027 {
1028         return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1029 }
1030
1031 static struct opt_group fio_opt_cat_groups[] = {
1032         {
1033                 .name   = "Rate",
1034                 .mask   = FIO_OPT_G_RATE,
1035         },
1036         {
1037                 .name   = "Zone",
1038                 .mask   = FIO_OPT_G_ZONE,
1039         },
1040         {
1041                 .name   = "Read/write mix",
1042                 .mask   = FIO_OPT_G_RWMIX,
1043         },
1044         {
1045                 .name   = "Verify",
1046                 .mask   = FIO_OPT_G_VERIFY,
1047         },
1048         {
1049                 .name   = "Trim",
1050                 .mask   = FIO_OPT_G_TRIM,
1051         },
1052         {
1053                 .name   = "I/O Logging",
1054                 .mask   = FIO_OPT_G_IOLOG,
1055         },
1056         {
1057                 .name   = "I/O Depth",
1058                 .mask   = FIO_OPT_G_IO_DEPTH,
1059         },
1060         {
1061                 .name   = "I/O Flow",
1062                 .mask   = FIO_OPT_G_IO_FLOW,
1063         },
1064         {
1065                 .name   = "Description",
1066                 .mask   = FIO_OPT_G_DESC,
1067         },
1068         {
1069                 .name   = "Filename",
1070                 .mask   = FIO_OPT_G_FILENAME,
1071         },
1072         {
1073                 .name   = "General I/O",
1074                 .mask   = FIO_OPT_G_IO_BASIC,
1075         },
1076         {
1077                 .name   = "Cgroups",
1078                 .mask   = FIO_OPT_G_CGROUP,
1079         },
1080         {
1081                 .name   = "Runtime",
1082                 .mask   = FIO_OPT_G_RUNTIME,
1083         },
1084         {
1085                 .name   = "Process",
1086                 .mask   = FIO_OPT_G_PROCESS,
1087         },
1088         {
1089                 .name   = "Job credentials / priority",
1090                 .mask   = FIO_OPT_G_CRED,
1091         },
1092         {
1093                 .name   = "Clock settings",
1094                 .mask   = FIO_OPT_G_CLOCK,
1095         },
1096         {
1097                 .name   = "I/O Type",
1098                 .mask   = FIO_OPT_G_IO_TYPE,
1099         },
1100         {
1101                 .name   = "I/O Thinktime",
1102                 .mask   = FIO_OPT_G_THINKTIME,
1103         },
1104         {
1105                 .name   = "Randomizations",
1106                 .mask   = FIO_OPT_G_RANDOM,
1107         },
1108         {
1109                 .name   = "I/O buffers",
1110                 .mask   = FIO_OPT_G_IO_BUF,
1111         },
1112         {
1113                 .name   = "Tiobench profile",
1114                 .mask   = FIO_OPT_G_TIOBENCH,
1115         },
1116
1117         {
1118                 .name   = NULL,
1119         }
1120 };
1121
1122 struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1123 {
1124         return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1125 }
1126
1127 /*
1128  * Map of job/command line options
1129  */
1130 struct fio_option fio_options[FIO_MAX_OPTS] = {
1131         {
1132                 .name   = "description",
1133                 .lname  = "Description of job",
1134                 .type   = FIO_OPT_STR_STORE,
1135                 .off1   = td_var_offset(description),
1136                 .help   = "Text job description",
1137                 .category = FIO_OPT_C_GENERAL,
1138                 .group  = FIO_OPT_G_DESC,
1139         },
1140         {
1141                 .name   = "name",
1142                 .lname  = "Job name",
1143                 .type   = FIO_OPT_STR_STORE,
1144                 .off1   = td_var_offset(name),
1145                 .help   = "Name of this job",
1146                 .category = FIO_OPT_C_GENERAL,
1147                 .group  = FIO_OPT_G_DESC,
1148         },
1149         {
1150                 .name   = "filename",
1151                 .lname  = "Filename(s)",
1152                 .type   = FIO_OPT_STR_STORE,
1153                 .off1   = td_var_offset(filename),
1154                 .cb     = str_filename_cb,
1155                 .prio   = -1, /* must come after "directory" */
1156                 .help   = "File(s) to use for the workload",
1157                 .category = FIO_OPT_C_FILE,
1158                 .group  = FIO_OPT_G_FILENAME,
1159         },
1160         {
1161                 .name   = "directory",
1162                 .lname  = "Directory",
1163                 .type   = FIO_OPT_STR_STORE,
1164                 .off1   = td_var_offset(directory),
1165                 .cb     = str_directory_cb,
1166                 .help   = "Directory to store files in",
1167                 .category = FIO_OPT_C_FILE,
1168                 .group  = FIO_OPT_G_FILENAME,
1169         },
1170         {
1171                 .name   = "lockfile",
1172                 .lname  = "Lockfile",
1173                 .type   = FIO_OPT_STR,
1174                 .cb     = str_lockfile_cb,
1175                 .off1   = td_var_offset(file_lock_mode),
1176                 .help   = "Lock file when doing IO to it",
1177                 .parent = "filename",
1178                 .hide   = 0,
1179                 .def    = "none",
1180                 .category = FIO_OPT_C_FILE,
1181                 .group  = FIO_OPT_G_FILENAME,
1182                 .posval = {
1183                           { .ival = "none",
1184                             .oval = FILE_LOCK_NONE,
1185                             .help = "No file locking",
1186                           },
1187                           { .ival = "exclusive",
1188                             .oval = FILE_LOCK_EXCLUSIVE,
1189                             .help = "Exclusive file lock",
1190                           },
1191                           {
1192                             .ival = "readwrite",
1193                             .oval = FILE_LOCK_READWRITE,
1194                             .help = "Read vs write lock",
1195                           },
1196                 },
1197         },
1198         {
1199                 .name   = "opendir",
1200                 .lname  = "Open directory",
1201                 .type   = FIO_OPT_STR_STORE,
1202                 .off1   = td_var_offset(opendir),
1203                 .cb     = str_opendir_cb,
1204                 .help   = "Recursively add files from this directory and down",
1205                 .category = FIO_OPT_C_FILE,
1206                 .group  = FIO_OPT_G_FILENAME,
1207         },
1208         {
1209                 .name   = "rw",
1210                 .lname  = "Read/write",
1211                 .alias  = "readwrite",
1212                 .type   = FIO_OPT_STR,
1213                 .cb     = str_rw_cb,
1214                 .off1   = td_var_offset(td_ddir),
1215                 .help   = "IO direction",
1216                 .def    = "read",
1217                 .verify = rw_verify,
1218                 .category = FIO_OPT_C_IO,
1219                 .group  = FIO_OPT_G_IO_BASIC,
1220                 .posval = {
1221                           { .ival = "read",
1222                             .oval = TD_DDIR_READ,
1223                             .help = "Sequential read",
1224                           },
1225                           { .ival = "write",
1226                             .oval = TD_DDIR_WRITE,
1227                             .help = "Sequential write",
1228                           },
1229                           { .ival = "trim",
1230                             .oval = TD_DDIR_TRIM,
1231                             .help = "Sequential trim",
1232                           },
1233                           { .ival = "randread",
1234                             .oval = TD_DDIR_RANDREAD,
1235                             .help = "Random read",
1236                           },
1237                           { .ival = "randwrite",
1238                             .oval = TD_DDIR_RANDWRITE,
1239                             .help = "Random write",
1240                           },
1241                           { .ival = "randtrim",
1242                             .oval = TD_DDIR_RANDTRIM,
1243                             .help = "Random trim",
1244                           },
1245                           { .ival = "rw",
1246                             .oval = TD_DDIR_RW,
1247                             .help = "Sequential read and write mix",
1248                           },
1249                           { .ival = "readwrite",
1250                             .oval = TD_DDIR_RW,
1251                             .help = "Sequential read and write mix",
1252                           },
1253                           { .ival = "randrw",
1254                             .oval = TD_DDIR_RANDRW,
1255                             .help = "Random read and write mix"
1256                           },
1257                 },
1258         },
1259         {
1260                 .name   = "rw_sequencer",
1261                 .lname  = "RW Sequencer",
1262                 .type   = FIO_OPT_STR,
1263                 .off1   = td_var_offset(rw_seq),
1264                 .help   = "IO offset generator modifier",
1265                 .def    = "sequential",
1266                 .category = FIO_OPT_C_IO,
1267                 .group  = FIO_OPT_G_IO_BASIC,
1268                 .posval = {
1269                           { .ival = "sequential",
1270                             .oval = RW_SEQ_SEQ,
1271                             .help = "Generate sequential offsets",
1272                           },
1273                           { .ival = "identical",
1274                             .oval = RW_SEQ_IDENT,
1275                             .help = "Generate identical offsets",
1276                           },
1277                 },
1278         },
1279
1280         {
1281                 .name   = "ioengine",
1282                 .lname  = "IO Engine",
1283                 .type   = FIO_OPT_STR_STORE,
1284                 .off1   = td_var_offset(ioengine),
1285                 .help   = "IO engine to use",
1286                 .def    = FIO_PREFERRED_ENGINE,
1287                 .category = FIO_OPT_C_IO,
1288                 .group  = FIO_OPT_G_IO_BASIC,
1289                 .posval = {
1290                           { .ival = "sync",
1291                             .help = "Use read/write",
1292                           },
1293                           { .ival = "psync",
1294                             .help = "Use pread/pwrite",
1295                           },
1296                           { .ival = "vsync",
1297                             .help = "Use readv/writev",
1298                           },
1299 #ifdef FIO_HAVE_LIBAIO
1300                           { .ival = "libaio",
1301                             .help = "Linux native asynchronous IO",
1302                           },
1303 #endif
1304 #ifdef FIO_HAVE_POSIXAIO
1305                           { .ival = "posixaio",
1306                             .help = "POSIX asynchronous IO",
1307                           },
1308 #endif
1309 #ifdef FIO_HAVE_SOLARISAIO
1310                           { .ival = "solarisaio",
1311                             .help = "Solaris native asynchronous IO",
1312                           },
1313 #endif
1314 #ifdef FIO_HAVE_WINDOWSAIO
1315                           { .ival = "windowsaio",
1316                             .help = "Windows native asynchronous IO"
1317                           },
1318 #endif
1319                           { .ival = "mmap",
1320                             .help = "Memory mapped IO"
1321                           },
1322 #ifdef FIO_HAVE_SPLICE
1323                           { .ival = "splice",
1324                             .help = "splice/vmsplice based IO",
1325                           },
1326                           { .ival = "netsplice",
1327                             .help = "splice/vmsplice to/from the network",
1328                           },
1329 #endif
1330 #ifdef FIO_HAVE_SGIO
1331                           { .ival = "sg",
1332                             .help = "SCSI generic v3 IO",
1333                           },
1334 #endif
1335                           { .ival = "null",
1336                             .help = "Testing engine (no data transfer)",
1337                           },
1338                           { .ival = "net",
1339                             .help = "Network IO",
1340                           },
1341 #ifdef FIO_HAVE_SYSLET
1342                           { .ival = "syslet-rw",
1343                             .help = "syslet enabled async pread/pwrite IO",
1344                           },
1345 #endif
1346                           { .ival = "cpuio",
1347                             .help = "CPU cycle burner engine",
1348                           },
1349 #ifdef FIO_HAVE_GUASI
1350                           { .ival = "guasi",
1351                             .help = "GUASI IO engine",
1352                           },
1353 #endif
1354 #ifdef FIO_HAVE_BINJECT
1355                           { .ival = "binject",
1356                             .help = "binject direct inject block engine",
1357                           },
1358 #endif
1359 #ifdef FIO_HAVE_RDMA
1360                           { .ival = "rdma",
1361                             .help = "RDMA IO engine",
1362                           },
1363 #endif
1364 #ifdef FIO_HAVE_FUSION_AW
1365                           { .ival = "fusion-aw-sync",
1366                             .help = "Fusion-io atomic write engine",
1367                           },
1368 #endif
1369 #ifdef FIO_HAVE_E4_ENG
1370                           { .ival = "e4defrag",
1371                             .help = "ext4 defrag engine",
1372                           },
1373 #endif
1374 #ifdef FIO_HAVE_FALLOC_ENG
1375                           { .ival = "falloc",
1376                             .help = "fallocate() file based engine",
1377                           },
1378 #endif
1379                           { .ival = "external",
1380                             .help = "Load external engine (append name)",
1381                           },
1382                 },
1383         },
1384         {
1385                 .name   = "iodepth",
1386                 .lname  = "IO Depth",
1387                 .type   = FIO_OPT_INT,
1388                 .off1   = td_var_offset(iodepth),
1389                 .help   = "Number of IO buffers to keep in flight",
1390                 .minval = 1,
1391                 .interval = 1,
1392                 .def    = "1",
1393                 .category = FIO_OPT_C_IO,
1394                 .group  = FIO_OPT_G_IO_BASIC,
1395         },
1396         {
1397                 .name   = "iodepth_batch",
1398                 .lname  = "IO Depth batch",
1399                 .alias  = "iodepth_batch_submit",
1400                 .type   = FIO_OPT_INT,
1401                 .off1   = td_var_offset(iodepth_batch),
1402                 .help   = "Number of IO buffers to submit in one go",
1403                 .parent = "iodepth",
1404                 .hide   = 1,
1405                 .minval = 1,
1406                 .interval = 1,
1407                 .def    = "1",
1408                 .category = FIO_OPT_C_IO,
1409                 .group  = FIO_OPT_G_IO_BASIC,
1410         },
1411         {
1412                 .name   = "iodepth_batch_complete",
1413                 .lname  = "IO Depth batch complete",
1414                 .type   = FIO_OPT_INT,
1415                 .off1   = td_var_offset(iodepth_batch_complete),
1416                 .help   = "Number of IO buffers to retrieve in one go",
1417                 .parent = "iodepth",
1418                 .hide   = 1,
1419                 .minval = 0,
1420                 .interval = 1,
1421                 .def    = "1",
1422                 .category = FIO_OPT_C_IO,
1423                 .group  = FIO_OPT_G_IO_BASIC,
1424         },
1425         {
1426                 .name   = "iodepth_low",
1427                 .lname  = "IO Depth batch low",
1428                 .type   = FIO_OPT_INT,
1429                 .off1   = td_var_offset(iodepth_low),
1430                 .help   = "Low water mark for queuing depth",
1431                 .parent = "iodepth",
1432                 .hide   = 1,
1433                 .interval = 1,
1434                 .category = FIO_OPT_C_IO,
1435                 .group  = FIO_OPT_G_IO_BASIC,
1436         },
1437         {
1438                 .name   = "size",
1439                 .lname  = "Size",
1440                 .type   = FIO_OPT_STR_VAL,
1441                 .cb     = str_size_cb,
1442                 .help   = "Total size of device or files",
1443                 .interval = 1024 * 1024,
1444                 .category = FIO_OPT_C_IO,
1445                 .group  = FIO_OPT_G_INVALID,
1446         },
1447         {
1448                 .name   = "fill_device",
1449                 .lname  = "Fill device",
1450                 .alias  = "fill_fs",
1451                 .type   = FIO_OPT_BOOL,
1452                 .off1   = td_var_offset(fill_device),
1453                 .help   = "Write until an ENOSPC error occurs",
1454                 .def    = "0",
1455                 .category = FIO_OPT_C_FILE,
1456                 .group  = FIO_OPT_G_INVALID,
1457         },
1458         {
1459                 .name   = "filesize",
1460                 .lname  = "File size",
1461                 .type   = FIO_OPT_STR_VAL,
1462                 .off1   = td_var_offset(file_size_low),
1463                 .off2   = td_var_offset(file_size_high),
1464                 .minval = 1,
1465                 .help   = "Size of individual files",
1466                 .interval = 1024 * 1024,
1467                 .category = FIO_OPT_C_FILE,
1468                 .group  = FIO_OPT_G_INVALID,
1469         },
1470         {
1471                 .name   = "offset",
1472                 .lname  = "IO offset",
1473                 .alias  = "fileoffset",
1474                 .type   = FIO_OPT_STR_VAL,
1475                 .off1   = td_var_offset(start_offset),
1476                 .help   = "Start IO from this offset",
1477                 .def    = "0",
1478                 .interval = 1024 * 1024,
1479                 .category = FIO_OPT_C_IO,
1480                 .group  = FIO_OPT_G_INVALID,
1481         },
1482         {
1483                 .name   = "offset_increment",
1484                 .lname  = "IO offset increment",
1485                 .type   = FIO_OPT_STR_VAL,
1486                 .off1   = td_var_offset(offset_increment),
1487                 .help   = "What is the increment from one offset to the next",
1488                 .parent = "offset",
1489                 .hide   = 1,
1490                 .def    = "0",
1491                 .interval = 1024 * 1024,
1492                 .category = FIO_OPT_C_IO,
1493                 .group  = FIO_OPT_G_INVALID,
1494         },
1495         {
1496                 .name   = "bs",
1497                 .lname  = "Block size",
1498                 .alias  = "blocksize",
1499                 .type   = FIO_OPT_INT,
1500                 .off1   = td_var_offset(bs[DDIR_READ]),
1501                 .off2   = td_var_offset(bs[DDIR_WRITE]),
1502                 .off3   = td_var_offset(bs[DDIR_TRIM]),
1503                 .minval = 1,
1504                 .help   = "Block size unit",
1505                 .def    = "4k",
1506                 .parent = "rw",
1507                 .hide   = 1,
1508                 .interval = 512,
1509                 .category = FIO_OPT_C_IO,
1510                 .group  = FIO_OPT_G_INVALID,
1511         },
1512         {
1513                 .name   = "ba",
1514                 .lname  = "Block size align",
1515                 .alias  = "blockalign",
1516                 .type   = FIO_OPT_INT,
1517                 .off1   = td_var_offset(ba[DDIR_READ]),
1518                 .off2   = td_var_offset(ba[DDIR_WRITE]),
1519                 .off3   = td_var_offset(ba[DDIR_TRIM]),
1520                 .minval = 1,
1521                 .help   = "IO block offset alignment",
1522                 .parent = "rw",
1523                 .hide   = 1,
1524                 .interval = 512,
1525                 .category = FIO_OPT_C_IO,
1526                 .group  = FIO_OPT_G_INVALID,
1527         },
1528         {
1529                 .name   = "bsrange",
1530                 .lname  = "Block size range",
1531                 .alias  = "blocksize_range",
1532                 .type   = FIO_OPT_RANGE,
1533                 .off1   = td_var_offset(min_bs[DDIR_READ]),
1534                 .off2   = td_var_offset(max_bs[DDIR_READ]),
1535                 .off3   = td_var_offset(min_bs[DDIR_WRITE]),
1536                 .off4   = td_var_offset(max_bs[DDIR_WRITE]),
1537                 .off5   = td_var_offset(min_bs[DDIR_TRIM]),
1538                 .off6   = td_var_offset(max_bs[DDIR_TRIM]),
1539                 .minval = 1,
1540                 .help   = "Set block size range (in more detail than bs)",
1541                 .parent = "rw",
1542                 .hide   = 1,
1543                 .interval = 4096,
1544                 .category = FIO_OPT_C_IO,
1545                 .group  = FIO_OPT_G_INVALID,
1546         },
1547         {
1548                 .name   = "bssplit",
1549                 .lname  = "Block size split",
1550                 .type   = FIO_OPT_STR,
1551                 .cb     = str_bssplit_cb,
1552                 .help   = "Set a specific mix of block sizes",
1553                 .parent = "rw",
1554                 .hide   = 1,
1555                 .category = FIO_OPT_C_IO,
1556                 .group  = FIO_OPT_G_INVALID,
1557         },
1558         {
1559                 .name   = "bs_unaligned",
1560                 .lname  = "Block size unaligned",
1561                 .alias  = "blocksize_unaligned",
1562                 .type   = FIO_OPT_STR_SET,
1563                 .off1   = td_var_offset(bs_unaligned),
1564                 .help   = "Don't sector align IO buffer sizes",
1565                 .parent = "rw",
1566                 .hide   = 1,
1567                 .category = FIO_OPT_C_IO,
1568                 .group  = FIO_OPT_G_INVALID,
1569         },
1570         {
1571                 .name   = "randrepeat",
1572                 .lname  = "Random repeatable",
1573                 .type   = FIO_OPT_BOOL,
1574                 .off1   = td_var_offset(rand_repeatable),
1575                 .help   = "Use repeatable random IO pattern",
1576                 .def    = "1",
1577                 .parent = "rw",
1578                 .hide   = 1,
1579                 .category = FIO_OPT_C_IO,
1580                 .group  = FIO_OPT_G_RANDOM,
1581         },
1582         {
1583                 .name   = "use_os_rand",
1584                 .lname  = "Use OS random",
1585                 .type   = FIO_OPT_BOOL,
1586                 .off1   = td_var_offset(use_os_rand),
1587                 .help   = "Set to use OS random generator",
1588                 .def    = "0",
1589                 .parent = "rw",
1590                 .hide   = 1,
1591                 .category = FIO_OPT_C_IO,
1592                 .group  = FIO_OPT_G_RANDOM,
1593         },
1594         {
1595                 .name   = "norandommap",
1596                 .lname  = "No randommap",
1597                 .type   = FIO_OPT_STR_SET,
1598                 .off1   = td_var_offset(norandommap),
1599                 .help   = "Accept potential duplicate random blocks",
1600                 .parent = "rw",
1601                 .hide   = 1,
1602                 .hide_on_set = 1,
1603                 .category = FIO_OPT_C_IO,
1604                 .group  = FIO_OPT_G_RANDOM,
1605         },
1606         {
1607                 .name   = "softrandommap",
1608                 .lname  = "Soft randommap",
1609                 .type   = FIO_OPT_BOOL,
1610                 .off1   = td_var_offset(softrandommap),
1611                 .help   = "Set norandommap if randommap allocation fails",
1612                 .parent = "norandommap",
1613                 .hide   = 1,
1614                 .def    = "0",
1615                 .category = FIO_OPT_C_IO,
1616                 .group  = FIO_OPT_G_RANDOM,
1617         },
1618         {
1619                 .name   = "random_generator",
1620                 .type   = FIO_OPT_STR,
1621                 .off1   = td_var_offset(random_generator),
1622                 .help   = "Type of random number generator to use",
1623                 .def    = "tausworthe",
1624                 .posval = {
1625                           { .ival = "tausworthe",
1626                             .oval = FIO_RAND_GEN_TAUSWORTHE,
1627                             .help = "Strong Tausworthe generator",
1628                           },
1629                           { .ival = "lfsr",
1630                             .oval = FIO_RAND_GEN_LFSR,
1631                             .help = "Variable length LFSR",
1632                           },
1633                 },
1634                 .category = FIO_OPT_C_IO,
1635                 .group  = FIO_OPT_G_RANDOM,
1636         },
1637         {
1638                 .name   = "random_distribution",
1639                 .type   = FIO_OPT_STR,
1640                 .off1   = td_var_offset(random_distribution),
1641                 .cb     = str_random_distribution_cb,
1642                 .help   = "Random offset distribution generator",
1643                 .def    = "random",
1644                 .posval = {
1645                           { .ival = "random",
1646                             .oval = FIO_RAND_DIST_RANDOM,
1647                             .help = "Completely random",
1648                           },
1649                           { .ival = "zipf",
1650                             .oval = FIO_RAND_DIST_ZIPF,
1651                             .help = "Zipf distribution",
1652                           },
1653                           { .ival = "pareto",
1654                             .oval = FIO_RAND_DIST_PARETO,
1655                             .help = "Pareto distribution",
1656                           },
1657                 },
1658                 .category = FIO_OPT_C_IO,
1659                 .group  = FIO_OPT_G_RANDOM,
1660         },
1661         {
1662                 .name   = "nrfiles",
1663                 .lname  = "Number of files",
1664                 .alias  = "nr_files",
1665                 .type   = FIO_OPT_INT,
1666                 .off1   = td_var_offset(nr_files),
1667                 .help   = "Split job workload between this number of files",
1668                 .def    = "1",
1669                 .interval = 1,
1670                 .category = FIO_OPT_C_FILE,
1671                 .group  = FIO_OPT_G_INVALID,
1672         },
1673         {
1674                 .name   = "openfiles",
1675                 .lname  = "Number of open files",
1676                 .type   = FIO_OPT_INT,
1677                 .off1   = td_var_offset(open_files),
1678                 .help   = "Number of files to keep open at the same time",
1679                 .category = FIO_OPT_C_FILE,
1680                 .group  = FIO_OPT_G_INVALID,
1681         },
1682         {
1683                 .name   = "file_service_type",
1684                 .lname  = "File service type",
1685                 .type   = FIO_OPT_STR,
1686                 .cb     = str_fst_cb,
1687                 .off1   = td_var_offset(file_service_type),
1688                 .help   = "How to select which file to service next",
1689                 .def    = "roundrobin",
1690                 .category = FIO_OPT_C_FILE,
1691                 .group  = FIO_OPT_G_INVALID,
1692                 .posval = {
1693                           { .ival = "random",
1694                             .oval = FIO_FSERVICE_RANDOM,
1695                             .help = "Choose a file at random",
1696                           },
1697                           { .ival = "roundrobin",
1698                             .oval = FIO_FSERVICE_RR,
1699                             .help = "Round robin select files",
1700                           },
1701                           { .ival = "sequential",
1702                             .oval = FIO_FSERVICE_SEQ,
1703                             .help = "Finish one file before moving to the next",
1704                           },
1705                 },
1706                 .parent = "nrfiles",
1707                 .hide   = 1,
1708         },
1709 #ifdef FIO_HAVE_FALLOCATE
1710         {
1711                 .name   = "fallocate",
1712                 .lname  = "Fallocate",
1713                 .type   = FIO_OPT_STR,
1714                 .off1   = td_var_offset(fallocate_mode),
1715                 .help   = "Whether pre-allocation is performed when laying out files",
1716                 .def    = "posix",
1717                 .category = FIO_OPT_C_FILE,
1718                 .group  = FIO_OPT_G_INVALID,
1719                 .posval = {
1720                           { .ival = "none",
1721                             .oval = FIO_FALLOCATE_NONE,
1722                             .help = "Do not pre-allocate space",
1723                           },
1724                           { .ival = "posix",
1725                             .oval = FIO_FALLOCATE_POSIX,
1726                             .help = "Use posix_fallocate()",
1727                           },
1728 #ifdef FIO_HAVE_LINUX_FALLOCATE
1729                           { .ival = "keep",
1730                             .oval = FIO_FALLOCATE_KEEP_SIZE,
1731                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1732                           },
1733 #endif
1734                           /* Compatibility with former boolean values */
1735                           { .ival = "0",
1736                             .oval = FIO_FALLOCATE_NONE,
1737                             .help = "Alias for 'none'",
1738                           },
1739                           { .ival = "1",
1740                             .oval = FIO_FALLOCATE_POSIX,
1741                             .help = "Alias for 'posix'",
1742                           },
1743                 },
1744         },
1745 #endif  /* FIO_HAVE_FALLOCATE */
1746         {
1747                 .name   = "fadvise_hint",
1748                 .lname  = "Fadvise hint",
1749                 .type   = FIO_OPT_BOOL,
1750                 .off1   = td_var_offset(fadvise_hint),
1751                 .help   = "Use fadvise() to advise the kernel on IO pattern",
1752                 .def    = "1",
1753                 .category = FIO_OPT_C_FILE,
1754                 .group  = FIO_OPT_G_INVALID,
1755         },
1756         {
1757                 .name   = "fsync",
1758                 .lname  = "Fsync",
1759                 .type   = FIO_OPT_INT,
1760                 .off1   = td_var_offset(fsync_blocks),
1761                 .help   = "Issue fsync for writes every given number of blocks",
1762                 .def    = "0",
1763                 .interval = 1,
1764                 .category = FIO_OPT_C_FILE,
1765                 .group  = FIO_OPT_G_INVALID,
1766         },
1767         {
1768                 .name   = "fdatasync",
1769                 .lname  = "Fdatasync",
1770                 .type   = FIO_OPT_INT,
1771                 .off1   = td_var_offset(fdatasync_blocks),
1772                 .help   = "Issue fdatasync for writes every given number of blocks",
1773                 .def    = "0",
1774                 .interval = 1,
1775                 .category = FIO_OPT_C_FILE,
1776                 .group  = FIO_OPT_G_INVALID,
1777         },
1778         {
1779                 .name   = "write_barrier",
1780                 .lname  = "Write barrier",
1781                 .type   = FIO_OPT_INT,
1782                 .off1   = td_var_offset(barrier_blocks),
1783                 .help   = "Make every Nth write a barrier write",
1784                 .def    = "0",
1785                 .interval = 1,
1786                 .category = FIO_OPT_C_IO,
1787                 .group  = FIO_OPT_G_INVALID,
1788         },
1789 #ifdef FIO_HAVE_SYNC_FILE_RANGE
1790         {
1791                 .name   = "sync_file_range",
1792                 .lname  = "Sync file range",
1793                 .posval = {
1794                           { .ival = "wait_before",
1795                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1796                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1797                             .or   = 1,
1798                           },
1799                           { .ival = "write",
1800                             .oval = SYNC_FILE_RANGE_WRITE,
1801                             .help = "SYNC_FILE_RANGE_WRITE",
1802                             .or   = 1,
1803                           },
1804                           {
1805                             .ival = "wait_after",
1806                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1807                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1808                             .or   = 1,
1809                           },
1810                 },
1811                 .type   = FIO_OPT_STR_MULTI,
1812                 .cb     = str_sfr_cb,
1813                 .off1   = td_var_offset(sync_file_range),
1814                 .help   = "Use sync_file_range()",
1815                 .category = FIO_OPT_C_FILE,
1816                 .group  = FIO_OPT_G_INVALID,
1817         },
1818 #endif
1819         {
1820                 .name   = "direct",
1821                 .lname  = "Direct I/O",
1822                 .type   = FIO_OPT_BOOL,
1823                 .off1   = td_var_offset(odirect),
1824                 .help   = "Use O_DIRECT IO (negates buffered)",
1825                 .def    = "0",
1826                 .inverse = "buffered",
1827                 .category = FIO_OPT_C_IO,
1828                 .group  = FIO_OPT_G_IO_TYPE,
1829         },
1830         {
1831                 .name   = "buffered",
1832                 .lname  = "Buffered I/O",
1833                 .type   = FIO_OPT_BOOL,
1834                 .off1   = td_var_offset(odirect),
1835                 .neg    = 1,
1836                 .help   = "Use buffered IO (negates direct)",
1837                 .def    = "1",
1838                 .inverse = "direct",
1839                 .category = FIO_OPT_C_IO,
1840                 .group  = FIO_OPT_G_IO_TYPE,
1841         },
1842         {
1843                 .name   = "overwrite",
1844                 .lname  = "Overwrite",
1845                 .type   = FIO_OPT_BOOL,
1846                 .off1   = td_var_offset(overwrite),
1847                 .help   = "When writing, set whether to overwrite current data",
1848                 .def    = "0",
1849                 .category = FIO_OPT_C_FILE,
1850                 .group  = FIO_OPT_G_INVALID,
1851         },
1852         {
1853                 .name   = "loops",
1854                 .lname  = "Loops",
1855                 .type   = FIO_OPT_INT,
1856                 .off1   = td_var_offset(loops),
1857                 .help   = "Number of times to run the job",
1858                 .def    = "1",
1859                 .interval = 1,
1860                 .category = FIO_OPT_C_GENERAL,
1861                 .group  = FIO_OPT_G_RUNTIME,
1862         },
1863         {
1864                 .name   = "numjobs",
1865                 .lname  = "Number of jobs",
1866                 .type   = FIO_OPT_INT,
1867                 .off1   = td_var_offset(numjobs),
1868                 .help   = "Duplicate this job this many times",
1869                 .def    = "1",
1870                 .interval = 1,
1871                 .category = FIO_OPT_C_GENERAL,
1872                 .group  = FIO_OPT_G_RUNTIME,
1873         },
1874         {
1875                 .name   = "startdelay",
1876                 .lname  = "Start delay",
1877                 .type   = FIO_OPT_STR_VAL_TIME,
1878                 .off1   = td_var_offset(start_delay),
1879                 .help   = "Only start job when this period has passed",
1880                 .def    = "0",
1881                 .category = FIO_OPT_C_GENERAL,
1882                 .group  = FIO_OPT_G_RUNTIME,
1883         },
1884         {
1885                 .name   = "runtime",
1886                 .lname  = "Runtime",
1887                 .alias  = "timeout",
1888                 .type   = FIO_OPT_STR_VAL_TIME,
1889                 .off1   = td_var_offset(timeout),
1890                 .help   = "Stop workload when this amount of time has passed",
1891                 .def    = "0",
1892                 .category = FIO_OPT_C_GENERAL,
1893                 .group  = FIO_OPT_G_RUNTIME,
1894         },
1895         {
1896                 .name   = "time_based",
1897                 .lname  = "Time based",
1898                 .type   = FIO_OPT_STR_SET,
1899                 .off1   = td_var_offset(time_based),
1900                 .help   = "Keep running until runtime/timeout is met",
1901                 .category = FIO_OPT_C_GENERAL,
1902                 .group  = FIO_OPT_G_RUNTIME,
1903         },
1904         {
1905                 .name   = "ramp_time",
1906                 .lname  = "Ramp time",
1907                 .type   = FIO_OPT_STR_VAL_TIME,
1908                 .off1   = td_var_offset(ramp_time),
1909                 .help   = "Ramp up time before measuring performance",
1910                 .category = FIO_OPT_C_GENERAL,
1911                 .group  = FIO_OPT_G_RUNTIME,
1912         },
1913         {
1914                 .name   = "clocksource",
1915                 .lname  = "Clock source",
1916                 .type   = FIO_OPT_STR,
1917                 .cb     = fio_clock_source_cb,
1918                 .off1   = td_var_offset(clocksource),
1919                 .help   = "What type of timing source to use",
1920                 .category = FIO_OPT_C_GENERAL,
1921                 .group  = FIO_OPT_G_CLOCK,
1922                 .posval = {
1923                           { .ival = "gettimeofday",
1924                             .oval = CS_GTOD,
1925                             .help = "Use gettimeofday(2) for timing",
1926                           },
1927                           { .ival = "clock_gettime",
1928                             .oval = CS_CGETTIME,
1929                             .help = "Use clock_gettime(2) for timing",
1930                           },
1931 #ifdef ARCH_HAVE_CPU_CLOCK
1932                           { .ival = "cpu",
1933                             .oval = CS_CPUCLOCK,
1934                             .help = "Use CPU private clock",
1935                           },
1936 #endif
1937                 },
1938         },
1939         {
1940                 .name   = "mem",
1941                 .alias  = "iomem",
1942                 .lname  = "I/O Memory",
1943                 .type   = FIO_OPT_STR,
1944                 .cb     = str_mem_cb,
1945                 .off1   = td_var_offset(mem_type),
1946                 .help   = "Backing type for IO buffers",
1947                 .def    = "malloc",
1948                 .category = FIO_OPT_C_IO,
1949                 .group  = FIO_OPT_G_INVALID,
1950                 .posval = {
1951                           { .ival = "malloc",
1952                             .oval = MEM_MALLOC,
1953                             .help = "Use malloc(3) for IO buffers",
1954                           },
1955                           { .ival = "shm",
1956                             .oval = MEM_SHM,
1957                             .help = "Use shared memory segments for IO buffers",
1958                           },
1959 #ifdef FIO_HAVE_HUGETLB
1960                           { .ival = "shmhuge",
1961                             .oval = MEM_SHMHUGE,
1962                             .help = "Like shm, but use huge pages",
1963                           },
1964 #endif
1965                           { .ival = "mmap",
1966                             .oval = MEM_MMAP,
1967                             .help = "Use mmap(2) (file or anon) for IO buffers",
1968                           },
1969 #ifdef FIO_HAVE_HUGETLB
1970                           { .ival = "mmaphuge",
1971                             .oval = MEM_MMAPHUGE,
1972                             .help = "Like mmap, but use huge pages",
1973                           },
1974 #endif
1975                   },
1976         },
1977         {
1978                 .name   = "iomem_align",
1979                 .alias  = "mem_align",
1980                 .lname  = "I/O memory alignment",
1981                 .type   = FIO_OPT_INT,
1982                 .off1   = td_var_offset(mem_align),
1983                 .minval = 0,
1984                 .help   = "IO memory buffer offset alignment",
1985                 .def    = "0",
1986                 .parent = "iomem",
1987                 .hide   = 1,
1988                 .category = FIO_OPT_C_IO,
1989                 .group  = FIO_OPT_G_INVALID,
1990         },
1991         {
1992                 .name   = "verify",
1993                 .lname  = "Verify",
1994                 .type   = FIO_OPT_STR,
1995                 .off1   = td_var_offset(verify),
1996                 .help   = "Verify data written",
1997                 .def    = "0",
1998                 .category = FIO_OPT_C_IO,
1999                 .group  = FIO_OPT_G_VERIFY,
2000                 .posval = {
2001                           { .ival = "0",
2002                             .oval = VERIFY_NONE,
2003                             .help = "Don't do IO verification",
2004                           },
2005                           { .ival = "md5",
2006                             .oval = VERIFY_MD5,
2007                             .help = "Use md5 checksums for verification",
2008                           },
2009                           { .ival = "crc64",
2010                             .oval = VERIFY_CRC64,
2011                             .help = "Use crc64 checksums for verification",
2012                           },
2013                           { .ival = "crc32",
2014                             .oval = VERIFY_CRC32,
2015                             .help = "Use crc32 checksums for verification",
2016                           },
2017                           { .ival = "crc32c-intel",
2018                             .oval = VERIFY_CRC32C,
2019                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2020                           },
2021                           { .ival = "crc32c",
2022                             .oval = VERIFY_CRC32C,
2023                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2024                           },
2025                           { .ival = "crc16",
2026                             .oval = VERIFY_CRC16,
2027                             .help = "Use crc16 checksums for verification",
2028                           },
2029                           { .ival = "crc7",
2030                             .oval = VERIFY_CRC7,
2031                             .help = "Use crc7 checksums for verification",
2032                           },
2033                           { .ival = "sha1",
2034                             .oval = VERIFY_SHA1,
2035                             .help = "Use sha1 checksums for verification",
2036                           },
2037                           { .ival = "sha256",
2038                             .oval = VERIFY_SHA256,
2039                             .help = "Use sha256 checksums for verification",
2040                           },
2041                           { .ival = "sha512",
2042                             .oval = VERIFY_SHA512,
2043                             .help = "Use sha512 checksums for verification",
2044                           },
2045                           { .ival = "meta",
2046                             .oval = VERIFY_META,
2047                             .help = "Use io information",
2048                           },
2049                           {
2050                             .ival = "null",
2051                             .oval = VERIFY_NULL,
2052                             .help = "Pretend to verify",
2053                           },
2054                 },
2055         },
2056         {
2057                 .name   = "do_verify",
2058                 .lname  = "Perform verify step",
2059                 .type   = FIO_OPT_BOOL,
2060                 .off1   = td_var_offset(do_verify),
2061                 .help   = "Run verification stage after write",
2062                 .def    = "1",
2063                 .parent = "verify",
2064                 .hide   = 1,
2065                 .category = FIO_OPT_C_IO,
2066                 .group  = FIO_OPT_G_VERIFY,
2067         },
2068         {
2069                 .name   = "verifysort",
2070                 .lname  = "Verify sort",
2071                 .type   = FIO_OPT_BOOL,
2072                 .off1   = td_var_offset(verifysort),
2073                 .help   = "Sort written verify blocks for read back",
2074                 .def    = "1",
2075                 .parent = "verify",
2076                 .hide   = 1,
2077                 .category = FIO_OPT_C_IO,
2078                 .group  = FIO_OPT_G_VERIFY,
2079         },
2080         {
2081                 .name   = "verify_interval",
2082                 .lname  = "Verify interval",
2083                 .type   = FIO_OPT_INT,
2084                 .off1   = td_var_offset(verify_interval),
2085                 .minval = 2 * sizeof(struct verify_header),
2086                 .help   = "Store verify buffer header every N bytes",
2087                 .parent = "verify",
2088                 .hide   = 1,
2089                 .interval = 2 * sizeof(struct verify_header),
2090                 .category = FIO_OPT_C_IO,
2091                 .group  = FIO_OPT_G_VERIFY,
2092         },
2093         {
2094                 .name   = "verify_offset",
2095                 .lname  = "Verify offset",
2096                 .type   = FIO_OPT_INT,
2097                 .help   = "Offset verify header location by N bytes",
2098                 .off1   = td_var_offset(verify_offset),
2099                 .minval = sizeof(struct verify_header),
2100                 .parent = "verify",
2101                 .hide   = 1,
2102                 .category = FIO_OPT_C_IO,
2103                 .group  = FIO_OPT_G_VERIFY,
2104         },
2105         {
2106                 .name   = "verify_pattern",
2107                 .lname  = "Verify pattern",
2108                 .type   = FIO_OPT_STR,
2109                 .cb     = str_verify_pattern_cb,
2110                 .help   = "Fill pattern for IO buffers",
2111                 .parent = "verify",
2112                 .hide   = 1,
2113                 .category = FIO_OPT_C_IO,
2114                 .group  = FIO_OPT_G_VERIFY,
2115         },
2116         {
2117                 .name   = "verify_fatal",
2118                 .lname  = "Verify fatal",
2119                 .type   = FIO_OPT_BOOL,
2120                 .off1   = td_var_offset(verify_fatal),
2121                 .def    = "0",
2122                 .help   = "Exit on a single verify failure, don't continue",
2123                 .parent = "verify",
2124                 .hide   = 1,
2125                 .category = FIO_OPT_C_IO,
2126                 .group  = FIO_OPT_G_VERIFY,
2127         },
2128         {
2129                 .name   = "verify_dump",
2130                 .lname  = "Verify dump",
2131                 .type   = FIO_OPT_BOOL,
2132                 .off1   = td_var_offset(verify_dump),
2133                 .def    = "0",
2134                 .help   = "Dump contents of good and bad blocks on failure",
2135                 .parent = "verify",
2136                 .hide   = 1,
2137                 .category = FIO_OPT_C_IO,
2138                 .group  = FIO_OPT_G_VERIFY,
2139         },
2140         {
2141                 .name   = "verify_async",
2142                 .lname  = "Verify asynchronously",
2143                 .type   = FIO_OPT_INT,
2144                 .off1   = td_var_offset(verify_async),
2145                 .def    = "0",
2146                 .help   = "Number of async verifier threads to use",
2147                 .parent = "verify",
2148                 .hide   = 1,
2149                 .category = FIO_OPT_C_IO,
2150                 .group  = FIO_OPT_G_VERIFY,
2151         },
2152         {
2153                 .name   = "verify_backlog",
2154                 .lname  = "Verify backlog",
2155                 .type   = FIO_OPT_STR_VAL,
2156                 .off1   = td_var_offset(verify_backlog),
2157                 .help   = "Verify after this number of blocks are written",
2158                 .parent = "verify",
2159                 .hide   = 1,
2160                 .category = FIO_OPT_C_IO,
2161                 .group  = FIO_OPT_G_VERIFY,
2162         },
2163         {
2164                 .name   = "verify_backlog_batch",
2165                 .lname  = "Verify backlog batch",
2166                 .type   = FIO_OPT_INT,
2167                 .off1   = td_var_offset(verify_batch),
2168                 .help   = "Verify this number of IO blocks",
2169                 .parent = "verify",
2170                 .hide   = 1,
2171                 .category = FIO_OPT_C_IO,
2172                 .group  = FIO_OPT_G_VERIFY,
2173         },
2174 #ifdef FIO_HAVE_CPU_AFFINITY
2175         {
2176                 .name   = "verify_async_cpus",
2177                 .lname  = "Async verify CPUs",
2178                 .type   = FIO_OPT_STR,
2179                 .cb     = str_verify_cpus_allowed_cb,
2180                 .help   = "Set CPUs allowed for async verify threads",
2181                 .parent = "verify_async",
2182                 .hide   = 1,
2183                 .category = FIO_OPT_C_IO,
2184                 .group  = FIO_OPT_G_VERIFY,
2185         },
2186 #endif
2187 #ifdef FIO_HAVE_TRIM
2188         {
2189                 .name   = "trim_percentage",
2190                 .lname  = "Trim percentage",
2191                 .type   = FIO_OPT_INT,
2192                 .off1   = td_var_offset(trim_percentage),
2193                 .minval = 0,
2194                 .maxval = 100,
2195                 .help   = "Number of verify blocks to discard/trim",
2196                 .parent = "verify",
2197                 .def    = "0",
2198                 .interval = 1,
2199                 .hide   = 1,
2200                 .category = FIO_OPT_C_IO,
2201                 .group  = FIO_OPT_G_TRIM,
2202         },
2203         {
2204                 .name   = "trim_verify_zero",
2205                 .lname  = "Verify trim zero",
2206                 .type   = FIO_OPT_BOOL,
2207                 .help   = "Verify that trim/discarded blocks are returned as zeroes",
2208                 .off1   = td_var_offset(trim_zero),
2209                 .parent = "trim_percentage",
2210                 .hide   = 1,
2211                 .def    = "1",
2212                 .category = FIO_OPT_C_IO,
2213                 .group  = FIO_OPT_G_TRIM,
2214         },
2215         {
2216                 .name   = "trim_backlog",
2217                 .lname  = "Trim backlog",
2218                 .type   = FIO_OPT_STR_VAL,
2219                 .off1   = td_var_offset(trim_backlog),
2220                 .help   = "Trim after this number of blocks are written",
2221                 .parent = "trim_percentage",
2222                 .hide   = 1,
2223                 .interval = 1,
2224                 .category = FIO_OPT_C_IO,
2225                 .group  = FIO_OPT_G_TRIM,
2226         },
2227         {
2228                 .name   = "trim_backlog_batch",
2229                 .lname  = "Trim backlog batch",
2230                 .type   = FIO_OPT_INT,
2231                 .off1   = td_var_offset(trim_batch),
2232                 .help   = "Trim this number of IO blocks",
2233                 .parent = "trim_percentage",
2234                 .hide   = 1,
2235                 .interval = 1,
2236                 .category = FIO_OPT_C_IO,
2237                 .group  = FIO_OPT_G_TRIM,
2238         },
2239 #endif
2240         {
2241                 .name   = "write_iolog",
2242                 .lname  = "Write I/O log",
2243                 .type   = FIO_OPT_STR_STORE,
2244                 .off1   = td_var_offset(write_iolog_file),
2245                 .help   = "Store IO pattern to file",
2246                 .category = FIO_OPT_C_IO,
2247                 .group  = FIO_OPT_G_IOLOG,
2248         },
2249         {
2250                 .name   = "read_iolog",
2251                 .lname  = "Read I/O log",
2252                 .type   = FIO_OPT_STR_STORE,
2253                 .off1   = td_var_offset(read_iolog_file),
2254                 .help   = "Playback IO pattern from file",
2255                 .category = FIO_OPT_C_IO,
2256                 .group  = FIO_OPT_G_IOLOG,
2257         },
2258         {
2259                 .name   = "replay_no_stall",
2260                 .lname  = "Don't stall on replay",
2261                 .type   = FIO_OPT_BOOL,
2262                 .off1   = td_var_offset(no_stall),
2263                 .def    = "0",
2264                 .parent = "read_iolog",
2265                 .hide   = 1,
2266                 .help   = "Playback IO pattern file as fast as possible without stalls",
2267                 .category = FIO_OPT_C_IO,
2268                 .group  = FIO_OPT_G_IOLOG,
2269         },
2270         {
2271                 .name   = "replay_redirect",
2272                 .lname  = "Redirect device for replay",
2273                 .type   = FIO_OPT_STR_STORE,
2274                 .off1   = td_var_offset(replay_redirect),
2275                 .parent = "read_iolog",
2276                 .hide   = 1,
2277                 .help   = "Replay all I/O onto this device, regardless of trace device",
2278                 .category = FIO_OPT_C_IO,
2279                 .group  = FIO_OPT_G_IOLOG,
2280         },
2281         {
2282                 .name   = "exec_prerun",
2283                 .lname  = "Pre-execute runnable",
2284                 .type   = FIO_OPT_STR_STORE,
2285                 .off1   = td_var_offset(exec_prerun),
2286                 .help   = "Execute this file prior to running job",
2287                 .category = FIO_OPT_C_GENERAL,
2288                 .group  = FIO_OPT_G_INVALID,
2289         },
2290         {
2291                 .name   = "exec_postrun",
2292                 .lname  = "Post-execute runnable",
2293                 .type   = FIO_OPT_STR_STORE,
2294                 .off1   = td_var_offset(exec_postrun),
2295                 .help   = "Execute this file after running job",
2296                 .category = FIO_OPT_C_GENERAL,
2297                 .group  = FIO_OPT_G_INVALID,
2298         },
2299 #ifdef FIO_HAVE_IOSCHED_SWITCH
2300         {
2301                 .name   = "ioscheduler",
2302                 .lname  = "I/O scheduler",
2303                 .type   = FIO_OPT_STR_STORE,
2304                 .off1   = td_var_offset(ioscheduler),
2305                 .help   = "Use this IO scheduler on the backing device",
2306                 .category = FIO_OPT_C_FILE,
2307                 .group  = FIO_OPT_G_INVALID,
2308         },
2309 #endif
2310         {
2311                 .name   = "zonesize",
2312                 .lname  = "Zone size",
2313                 .type   = FIO_OPT_STR_VAL,
2314                 .off1   = td_var_offset(zone_size),
2315                 .help   = "Amount of data to read per zone",
2316                 .def    = "0",
2317                 .interval = 1024 * 1024,
2318                 .category = FIO_OPT_C_IO,
2319                 .group  = FIO_OPT_G_ZONE,
2320         },
2321         {
2322                 .name   = "zonerange",
2323                 .lname  = "Zone range",
2324                 .type   = FIO_OPT_STR_VAL,
2325                 .off1   = td_var_offset(zone_range),
2326                 .help   = "Give size of an IO zone",
2327                 .def    = "0",
2328                 .interval = 1024 * 1024,
2329                 .category = FIO_OPT_C_IO,
2330                 .group  = FIO_OPT_G_ZONE,
2331         },
2332         {
2333                 .name   = "zoneskip",
2334                 .lname  = "Zone skip",
2335                 .type   = FIO_OPT_STR_VAL,
2336                 .off1   = td_var_offset(zone_skip),
2337                 .help   = "Space between IO zones",
2338                 .def    = "0",
2339                 .interval = 1024 * 1024,
2340                 .category = FIO_OPT_C_IO,
2341                 .group  = FIO_OPT_G_ZONE,
2342         },
2343         {
2344                 .name   = "lockmem",
2345                 .lname  = "Lock memory",
2346                 .type   = FIO_OPT_STR_VAL,
2347                 .off1   = td_var_offset(lockmem),
2348                 .help   = "Lock down this amount of memory",
2349                 .def    = "0",
2350                 .interval = 1024 * 1024,
2351                 .category = FIO_OPT_C_GENERAL,
2352                 .group  = FIO_OPT_G_INVALID,
2353         },
2354         {
2355                 .name   = "rwmixread",
2356                 .lname  = "Read/write mix read",
2357                 .type   = FIO_OPT_INT,
2358                 .cb     = str_rwmix_read_cb,
2359                 .maxval = 100,
2360                 .help   = "Percentage of mixed workload that is reads",
2361                 .def    = "50",
2362                 .interval = 5,
2363                 .inverse = "rwmixwrite",
2364                 .category = FIO_OPT_C_IO,
2365                 .group  = FIO_OPT_G_RWMIX,
2366         },
2367         {
2368                 .name   = "rwmixwrite",
2369                 .lname  = "Read/write mix write",
2370                 .type   = FIO_OPT_INT,
2371                 .cb     = str_rwmix_write_cb,
2372                 .maxval = 100,
2373                 .help   = "Percentage of mixed workload that is writes",
2374                 .def    = "50",
2375                 .interval = 5,
2376                 .inverse = "rwmixread",
2377                 .category = FIO_OPT_C_IO,
2378                 .group  = FIO_OPT_G_RWMIX,
2379         },
2380         {
2381                 .name   = "rwmixcycle",
2382                 .lname  = "Read/write mix cycle",
2383                 .type   = FIO_OPT_DEPRECATED,
2384                 .category = FIO_OPT_C_IO,
2385                 .group  = FIO_OPT_G_RWMIX,
2386         },
2387         {
2388                 .name   = "nice",
2389                 .lname  = "Nice",
2390                 .type   = FIO_OPT_INT,
2391                 .off1   = td_var_offset(nice),
2392                 .help   = "Set job CPU nice value",
2393                 .minval = -19,
2394                 .maxval = 20,
2395                 .def    = "0",
2396                 .interval = 1,
2397                 .category = FIO_OPT_C_GENERAL,
2398                 .group  = FIO_OPT_G_CRED,
2399         },
2400 #ifdef FIO_HAVE_IOPRIO
2401         {
2402                 .name   = "prio",
2403                 .lname  = "I/O nice priority",
2404                 .type   = FIO_OPT_INT,
2405                 .off1   = td_var_offset(ioprio),
2406                 .help   = "Set job IO priority value",
2407                 .minval = 0,
2408                 .maxval = 7,
2409                 .interval = 1,
2410                 .category = FIO_OPT_C_GENERAL,
2411                 .group  = FIO_OPT_G_CRED,
2412         },
2413         {
2414                 .name   = "prioclass",
2415                 .lname  = "I/O nice priority class",
2416                 .type   = FIO_OPT_INT,
2417                 .off1   = td_var_offset(ioprio_class),
2418                 .help   = "Set job IO priority class",
2419                 .minval = 0,
2420                 .maxval = 3,
2421                 .interval = 1,
2422                 .category = FIO_OPT_C_GENERAL,
2423                 .group  = FIO_OPT_G_CRED,
2424         },
2425 #endif
2426         {
2427                 .name   = "thinktime",
2428                 .lname  = "Thinktime",
2429                 .type   = FIO_OPT_INT,
2430                 .off1   = td_var_offset(thinktime),
2431                 .help   = "Idle time between IO buffers (usec)",
2432                 .def    = "0",
2433                 .category = FIO_OPT_C_IO,
2434                 .group  = FIO_OPT_G_THINKTIME,
2435         },
2436         {
2437                 .name   = "thinktime_spin",
2438                 .lname  = "Thinktime spin",
2439                 .type   = FIO_OPT_INT,
2440                 .off1   = td_var_offset(thinktime_spin),
2441                 .help   = "Start think time by spinning this amount (usec)",
2442                 .def    = "0",
2443                 .parent = "thinktime",
2444                 .hide   = 1,
2445                 .category = FIO_OPT_C_IO,
2446                 .group  = FIO_OPT_G_THINKTIME,
2447         },
2448         {
2449                 .name   = "thinktime_blocks",
2450                 .lname  = "Thinktime blocks",
2451                 .type   = FIO_OPT_INT,
2452                 .off1   = td_var_offset(thinktime_blocks),
2453                 .help   = "IO buffer period between 'thinktime'",
2454                 .def    = "1",
2455                 .parent = "thinktime",
2456                 .hide   = 1,
2457                 .category = FIO_OPT_C_IO,
2458                 .group  = FIO_OPT_G_THINKTIME,
2459         },
2460         {
2461                 .name   = "rate",
2462                 .lname  = "I/O rate",
2463                 .type   = FIO_OPT_INT,
2464                 .off1   = td_var_offset(rate[DDIR_READ]),
2465                 .off2   = td_var_offset(rate[DDIR_WRITE]),
2466                 .off3   = td_var_offset(rate[DDIR_TRIM]),
2467                 .help   = "Set bandwidth rate",
2468                 .category = FIO_OPT_C_IO,
2469                 .group  = FIO_OPT_G_RATE,
2470         },
2471         {
2472                 .name   = "ratemin",
2473                 .lname  = "I/O min rate",
2474                 .type   = FIO_OPT_INT,
2475                 .off1   = td_var_offset(ratemin[DDIR_READ]),
2476                 .off2   = td_var_offset(ratemin[DDIR_WRITE]),
2477                 .off3   = td_var_offset(ratemin[DDIR_TRIM]),
2478                 .help   = "Job must meet this rate or it will be shutdown",
2479                 .parent = "rate",
2480                 .hide   = 1,
2481                 .category = FIO_OPT_C_IO,
2482                 .group  = FIO_OPT_G_RATE,
2483         },
2484         {
2485                 .name   = "rate_iops",
2486                 .lname  = "I/O rate IOPS",
2487                 .type   = FIO_OPT_INT,
2488                 .off1   = td_var_offset(rate_iops[DDIR_READ]),
2489                 .off2   = td_var_offset(rate_iops[DDIR_WRITE]),
2490                 .off3   = td_var_offset(rate_iops[DDIR_TRIM]),
2491                 .help   = "Limit IO used to this number of IO operations/sec",
2492                 .hide   = 1,
2493                 .category = FIO_OPT_C_IO,
2494                 .group  = FIO_OPT_G_RATE,
2495         },
2496         {
2497                 .name   = "rate_iops_min",
2498                 .lname  = "I/O min rate IOPS",
2499                 .type   = FIO_OPT_INT,
2500                 .off1   = td_var_offset(rate_iops_min[DDIR_READ]),
2501                 .off2   = td_var_offset(rate_iops_min[DDIR_WRITE]),
2502                 .off3   = td_var_offset(rate_iops_min[DDIR_TRIM]),
2503                 .help   = "Job must meet this rate or it will be shut down",
2504                 .parent = "rate_iops",
2505                 .hide   = 1,
2506                 .category = FIO_OPT_C_IO,
2507                 .group  = FIO_OPT_G_RATE,
2508         },
2509         {
2510                 .name   = "ratecycle",
2511                 .lname  = "I/O rate cycle",
2512                 .type   = FIO_OPT_INT,
2513                 .off1   = td_var_offset(ratecycle),
2514                 .help   = "Window average for rate limits (msec)",
2515                 .def    = "1000",
2516                 .parent = "rate",
2517                 .hide   = 1,
2518                 .category = FIO_OPT_C_IO,
2519                 .group  = FIO_OPT_G_RATE,
2520         },
2521         {
2522                 .name   = "max_latency",
2523                 .type   = FIO_OPT_INT,
2524                 .off1   = td_var_offset(max_latency),
2525                 .help   = "Maximum tolerated IO latency (usec)",
2526                 .category = FIO_OPT_C_IO,
2527                 .group = FIO_OPT_G_RATE,
2528         },
2529         {
2530                 .name   = "invalidate",
2531                 .lname  = "Cache invalidate",
2532                 .type   = FIO_OPT_BOOL,
2533                 .off1   = td_var_offset(invalidate_cache),
2534                 .help   = "Invalidate buffer/page cache prior to running job",
2535                 .def    = "1",
2536                 .category = FIO_OPT_C_IO,
2537                 .group  = FIO_OPT_G_IO_TYPE,
2538         },
2539         {
2540                 .name   = "sync",
2541                 .lname  = "Synchronous I/O",
2542                 .type   = FIO_OPT_BOOL,
2543                 .off1   = td_var_offset(sync_io),
2544                 .help   = "Use O_SYNC for buffered writes",
2545                 .def    = "0",
2546                 .parent = "buffered",
2547                 .hide   = 1,
2548                 .category = FIO_OPT_C_IO,
2549                 .group  = FIO_OPT_G_IO_TYPE,
2550         },
2551         {
2552                 .name   = "create_serialize",
2553                 .lname  = "Create serialize",
2554                 .type   = FIO_OPT_BOOL,
2555                 .off1   = td_var_offset(create_serialize),
2556                 .help   = "Serialize creating of job files",
2557                 .def    = "1",
2558                 .category = FIO_OPT_C_FILE,
2559                 .group  = FIO_OPT_G_INVALID,
2560         },
2561         {
2562                 .name   = "create_fsync",
2563                 .lname  = "Create fsync",
2564                 .type   = FIO_OPT_BOOL,
2565                 .off1   = td_var_offset(create_fsync),
2566                 .help   = "fsync file after creation",
2567                 .def    = "1",
2568                 .category = FIO_OPT_C_FILE,
2569                 .group  = FIO_OPT_G_INVALID,
2570         },
2571         {
2572                 .name   = "create_on_open",
2573                 .lname  = "Create on open",
2574                 .type   = FIO_OPT_BOOL,
2575                 .off1   = td_var_offset(create_on_open),
2576                 .help   = "Create files when they are opened for IO",
2577                 .def    = "0",
2578                 .category = FIO_OPT_C_FILE,
2579                 .group  = FIO_OPT_G_INVALID,
2580         },
2581         {
2582                 .name   = "create_only",
2583                 .type   = FIO_OPT_BOOL,
2584                 .off1   = td_var_offset(create_only),
2585                 .help   = "Only perform file creation phase",
2586                 .category = FIO_OPT_C_FILE,
2587                 .def    = "0",
2588         },
2589         {
2590                 .name   = "pre_read",
2591                 .lname  = "Pre-read files",
2592                 .type   = FIO_OPT_BOOL,
2593                 .off1   = td_var_offset(pre_read),
2594                 .help   = "Pre-read files before starting official testing",
2595                 .def    = "0",
2596                 .category = FIO_OPT_C_FILE,
2597                 .group  = FIO_OPT_G_INVALID,
2598         },
2599 #ifdef FIO_HAVE_CPU_AFFINITY
2600         {
2601                 .name   = "cpumask",
2602                 .lname  = "CPU mask",
2603                 .type   = FIO_OPT_INT,
2604                 .cb     = str_cpumask_cb,
2605                 .help   = "CPU affinity mask",
2606                 .category = FIO_OPT_C_GENERAL,
2607                 .group  = FIO_OPT_G_CRED,
2608         },
2609         {
2610                 .name   = "cpus_allowed",
2611                 .lname  = "CPUs allowed",
2612                 .type   = FIO_OPT_STR,
2613                 .cb     = str_cpus_allowed_cb,
2614                 .help   = "Set CPUs allowed",
2615                 .category = FIO_OPT_C_GENERAL,
2616                 .group  = FIO_OPT_G_CRED,
2617         },
2618 #endif
2619 #ifdef FIO_HAVE_LIBNUMA
2620         {
2621                 .name   = "numa_cpu_nodes",
2622                 .type   = FIO_OPT_STR,
2623                 .cb     = str_numa_cpunodes_cb,
2624                 .help   = "NUMA CPU nodes bind",
2625         },
2626         {
2627                 .name   = "numa_mem_policy",
2628                 .type   = FIO_OPT_STR,
2629                 .cb     = str_numa_mpol_cb,
2630                 .help   = "NUMA memory policy setup",
2631         },
2632 #endif
2633         {
2634                 .name   = "end_fsync",
2635                 .lname  = "End fsync",
2636                 .type   = FIO_OPT_BOOL,
2637                 .off1   = td_var_offset(end_fsync),
2638                 .help   = "Include fsync at the end of job",
2639                 .def    = "0",
2640                 .category = FIO_OPT_C_FILE,
2641                 .group  = FIO_OPT_G_INVALID,
2642         },
2643         {
2644                 .name   = "fsync_on_close",
2645                 .lname  = "Fsync on close",
2646                 .type   = FIO_OPT_BOOL,
2647                 .off1   = td_var_offset(fsync_on_close),
2648                 .help   = "fsync files on close",
2649                 .def    = "0",
2650                 .category = FIO_OPT_C_FILE,
2651                 .group  = FIO_OPT_G_INVALID,
2652         },
2653         {
2654                 .name   = "unlink",
2655                 .lname  = "Unlink file",
2656                 .type   = FIO_OPT_BOOL,
2657                 .off1   = td_var_offset(unlink),
2658                 .help   = "Unlink created files after job has completed",
2659                 .def    = "0",
2660                 .category = FIO_OPT_C_FILE,
2661                 .group  = FIO_OPT_G_INVALID,
2662         },
2663         {
2664                 .name   = "exitall",
2665                 .lname  = "Exit-all on terminate",
2666                 .type   = FIO_OPT_STR_SET,
2667                 .cb     = str_exitall_cb,
2668                 .help   = "Terminate all jobs when one exits",
2669                 .category = FIO_OPT_C_GENERAL,
2670                 .group  = FIO_OPT_G_PROCESS,
2671         },
2672         {
2673                 .name   = "stonewall",
2674                 .lname  = "Wait for previous",
2675                 .alias  = "wait_for_previous",
2676                 .type   = FIO_OPT_STR_SET,
2677                 .off1   = td_var_offset(stonewall),
2678                 .help   = "Insert a hard barrier between this job and previous",
2679                 .category = FIO_OPT_C_GENERAL,
2680                 .group  = FIO_OPT_G_PROCESS,
2681         },
2682         {
2683                 .name   = "new_group",
2684                 .lname  = "New group",
2685                 .type   = FIO_OPT_STR_SET,
2686                 .off1   = td_var_offset(new_group),
2687                 .help   = "Mark the start of a new group (for reporting)",
2688                 .category = FIO_OPT_C_GENERAL,
2689                 .group  = FIO_OPT_G_PROCESS,
2690         },
2691         {
2692                 .name   = "thread",
2693                 .lname  = "Thread",
2694                 .type   = FIO_OPT_STR_SET,
2695                 .off1   = td_var_offset(use_thread),
2696                 .help   = "Use threads instead of processes",
2697                 .category = FIO_OPT_C_GENERAL,
2698                 .group  = FIO_OPT_G_PROCESS,
2699         },
2700         {
2701                 .name   = "write_bw_log",
2702                 .lname  = "Write bandwidth log",
2703                 .type   = FIO_OPT_STR_STORE,
2704                 .off1   = td_var_offset(bw_log_file),
2705                 .help   = "Write log of bandwidth during run",
2706                 .category = FIO_OPT_C_LOG,
2707                 .group  = FIO_OPT_G_INVALID,
2708         },
2709         {
2710                 .name   = "write_lat_log",
2711                 .lname  = "Write latency log",
2712                 .type   = FIO_OPT_STR_STORE,
2713                 .off1   = td_var_offset(lat_log_file),
2714                 .help   = "Write log of latency during run",
2715                 .category = FIO_OPT_C_LOG,
2716                 .group  = FIO_OPT_G_INVALID,
2717         },
2718         {
2719                 .name   = "write_iops_log",
2720                 .lname  = "Write IOPS log",
2721                 .type   = FIO_OPT_STR,
2722                 .off1   = td_var_offset(iops_log_file),
2723                 .help   = "Write log of IOPS during run",
2724                 .category = FIO_OPT_C_LOG,
2725                 .group  = FIO_OPT_G_INVALID,
2726         },
2727         {
2728                 .name   = "log_avg_msec",
2729                 .lname  = "Log averaging (msec)",
2730                 .type   = FIO_OPT_INT,
2731                 .off1   = td_var_offset(log_avg_msec),
2732                 .help   = "Average bw/iops/lat logs over this period of time",
2733                 .def    = "0",
2734                 .category = FIO_OPT_C_LOG,
2735                 .group  = FIO_OPT_G_INVALID,
2736         },
2737         {
2738                 .name   = "bwavgtime",
2739                 .lname  = "Bandwidth average time",
2740                 .type   = FIO_OPT_INT,
2741                 .off1   = td_var_offset(bw_avg_time),
2742                 .help   = "Time window over which to calculate bandwidth"
2743                           " (msec)",
2744                 .def    = "500",
2745                 .parent = "write_bw_log",
2746                 .hide   = 1,
2747                 .interval = 100,
2748                 .category = FIO_OPT_C_LOG,
2749                 .group  = FIO_OPT_G_INVALID,
2750         },
2751         {
2752                 .name   = "iopsavgtime",
2753                 .lname  = "IOPS average time",
2754                 .type   = FIO_OPT_INT,
2755                 .off1   = td_var_offset(iops_avg_time),
2756                 .help   = "Time window over which to calculate IOPS (msec)",
2757                 .def    = "500",
2758                 .parent = "write_iops_log",
2759                 .hide   = 1,
2760                 .interval = 100,
2761                 .category = FIO_OPT_C_LOG,
2762                 .group  = FIO_OPT_G_INVALID,
2763         },
2764         {
2765                 .name   = "group_reporting",
2766                 .lname  = "Group reporting",
2767                 .type   = FIO_OPT_BOOL,
2768                 .off1   = td_var_offset(group_reporting),
2769                 .help   = "Do reporting on a per-group basis",
2770                 .def    = "1",
2771                 .category = FIO_OPT_C_STAT,
2772                 .group  = FIO_OPT_G_INVALID,
2773         },
2774         {
2775                 .name   = "zero_buffers",
2776                 .lname  = "Zero I/O buffers",
2777                 .type   = FIO_OPT_STR_SET,
2778                 .off1   = td_var_offset(zero_buffers),
2779                 .help   = "Init IO buffers to all zeroes",
2780                 .category = FIO_OPT_C_IO,
2781                 .group  = FIO_OPT_G_IO_BUF,
2782         },
2783         {
2784                 .name   = "refill_buffers",
2785                 .lname  = "Refill I/O buffers",
2786                 .type   = FIO_OPT_STR_SET,
2787                 .off1   = td_var_offset(refill_buffers),
2788                 .help   = "Refill IO buffers on every IO submit",
2789                 .category = FIO_OPT_C_IO,
2790                 .group  = FIO_OPT_G_IO_BUF,
2791         },
2792         {
2793                 .name   = "scramble_buffers",
2794                 .lname  = "Scramble I/O buffers",
2795                 .type   = FIO_OPT_BOOL,
2796                 .off1   = td_var_offset(scramble_buffers),
2797                 .help   = "Slightly scramble buffers on every IO submit",
2798                 .def    = "1",
2799                 .category = FIO_OPT_C_IO,
2800                 .group  = FIO_OPT_G_IO_BUF,
2801         },
2802         {
2803                 .name   = "buffer_compress_percentage",
2804                 .lname  = "Buffer compression percentage",
2805                 .type   = FIO_OPT_INT,
2806                 .off1   = td_var_offset(compress_percentage),
2807                 .maxval = 100,
2808                 .minval = 1,
2809                 .help   = "How compressible the buffer is (approximately)",
2810                 .interval = 5,
2811                 .category = FIO_OPT_C_IO,
2812                 .group  = FIO_OPT_G_IO_BUF,
2813         },
2814         {
2815                 .name   = "buffer_compress_chunk",
2816                 .lname  = "Buffer compression chunk size",
2817                 .type   = FIO_OPT_INT,
2818                 .off1   = td_var_offset(compress_chunk),
2819                 .parent = "buffer_compress_percentage",
2820                 .hide   = 1,
2821                 .help   = "Size of compressible region in buffer",
2822                 .interval = 256,
2823                 .category = FIO_OPT_C_IO,
2824                 .group  = FIO_OPT_G_IO_BUF,
2825         },
2826         {
2827                 .name   = "clat_percentiles",
2828                 .lname  = "Completion latency percentiles",
2829                 .type   = FIO_OPT_BOOL,
2830                 .off1   = td_var_offset(clat_percentiles),
2831                 .help   = "Enable the reporting of completion latency percentiles",
2832                 .def    = "1",
2833                 .category = FIO_OPT_C_STAT,
2834                 .group  = FIO_OPT_G_INVALID,
2835         },
2836         {
2837                 .name   = "percentile_list",
2838                 .lname  = "Completion latency percentile list",
2839                 .type   = FIO_OPT_FLOAT_LIST,
2840                 .off1   = td_var_offset(percentile_list),
2841                 .off2   = td_var_offset(overwrite_plist),
2842                 .help   = "Specify a custom list of percentiles to report",
2843                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
2844                 .minfp  = 0.0,
2845                 .maxfp  = 100.0,
2846                 .category = FIO_OPT_C_STAT,
2847                 .group  = FIO_OPT_G_INVALID,
2848         },
2849
2850 #ifdef FIO_HAVE_DISK_UTIL
2851         {
2852                 .name   = "disk_util",
2853                 .lname  = "Disk utilization",
2854                 .type   = FIO_OPT_BOOL,
2855                 .off1   = td_var_offset(do_disk_util),
2856                 .help   = "Log disk utilization statistics",
2857                 .def    = "1",
2858                 .category = FIO_OPT_C_STAT,
2859                 .group  = FIO_OPT_G_INVALID,
2860         },
2861 #endif
2862         {
2863                 .name   = "gtod_reduce",
2864                 .lname  = "Reduce gettimeofday() calls",
2865                 .type   = FIO_OPT_BOOL,
2866                 .help   = "Greatly reduce number of gettimeofday() calls",
2867                 .cb     = str_gtod_reduce_cb,
2868                 .def    = "0",
2869                 .hide_on_set = 1,
2870                 .category = FIO_OPT_C_STAT,
2871                 .group  = FIO_OPT_G_INVALID,
2872         },
2873         {
2874                 .name   = "disable_lat",
2875                 .lname  = "Disable all latency stats",
2876                 .type   = FIO_OPT_BOOL,
2877                 .off1   = td_var_offset(disable_lat),
2878                 .help   = "Disable latency numbers",
2879                 .parent = "gtod_reduce",
2880                 .hide   = 1,
2881                 .def    = "0",
2882                 .category = FIO_OPT_C_STAT,
2883                 .group  = FIO_OPT_G_INVALID,
2884         },
2885         {
2886                 .name   = "disable_clat",
2887                 .lname  = "Disable completion latency stats",
2888                 .type   = FIO_OPT_BOOL,
2889                 .off1   = td_var_offset(disable_clat),
2890                 .help   = "Disable completion latency numbers",
2891                 .parent = "gtod_reduce",
2892                 .hide   = 1,
2893                 .def    = "0",
2894                 .category = FIO_OPT_C_STAT,
2895                 .group  = FIO_OPT_G_INVALID,
2896         },
2897         {
2898                 .name   = "disable_slat",
2899                 .lname  = "Disable submission latency stats",
2900                 .type   = FIO_OPT_BOOL,
2901                 .off1   = td_var_offset(disable_slat),
2902                 .help   = "Disable submission latency numbers",
2903                 .parent = "gtod_reduce",
2904                 .hide   = 1,
2905                 .def    = "0",
2906                 .category = FIO_OPT_C_STAT,
2907                 .group  = FIO_OPT_G_INVALID,
2908         },
2909         {
2910                 .name   = "disable_bw_measurement",
2911                 .lname  = "Disable bandwidth stats",
2912                 .type   = FIO_OPT_BOOL,
2913                 .off1   = td_var_offset(disable_bw),
2914                 .help   = "Disable bandwidth logging",
2915                 .parent = "gtod_reduce",
2916                 .hide   = 1,
2917                 .def    = "0",
2918                 .category = FIO_OPT_C_STAT,
2919                 .group  = FIO_OPT_G_INVALID,
2920         },
2921         {
2922                 .name   = "gtod_cpu",
2923                 .lname  = "Dedicated gettimeofday() CPU",
2924                 .type   = FIO_OPT_INT,
2925                 .cb     = str_gtod_cpu_cb,
2926                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
2927                 .verify = gtod_cpu_verify,
2928                 .category = FIO_OPT_C_GENERAL,
2929                 .group  = FIO_OPT_G_CLOCK,
2930         },
2931         {
2932                 .name   = "continue_on_error",
2933                 .lname  = "Continue on error",
2934                 .type   = FIO_OPT_STR,
2935                 .off1   = td_var_offset(continue_on_error),
2936                 .help   = "Continue on non-fatal errors during IO",
2937                 .def    = "none",
2938                 .category = FIO_OPT_C_GENERAL,
2939                 .group  = FIO_OPT_G_ERR,
2940                 .posval = {
2941                           { .ival = "none",
2942                             .oval = ERROR_TYPE_NONE,
2943                             .help = "Exit when an error is encountered",
2944                           },
2945                           { .ival = "read",
2946                             .oval = ERROR_TYPE_READ,
2947                             .help = "Continue on read errors only",
2948                           },
2949                           { .ival = "write",
2950                             .oval = ERROR_TYPE_WRITE,
2951                             .help = "Continue on write errors only",
2952                           },
2953                           { .ival = "io",
2954                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
2955                             .help = "Continue on any IO errors",
2956                           },
2957                           { .ival = "verify",
2958                             .oval = ERROR_TYPE_VERIFY,
2959                             .help = "Continue on verify errors only",
2960                           },
2961                           { .ival = "all",
2962                             .oval = ERROR_TYPE_ANY,
2963                             .help = "Continue on all io and verify errors",
2964                           },
2965                           { .ival = "0",
2966                             .oval = ERROR_TYPE_NONE,
2967                             .help = "Alias for 'none'",
2968                           },
2969                           { .ival = "1",
2970                             .oval = ERROR_TYPE_ANY,
2971                             .help = "Alias for 'all'",
2972                           },
2973                 },
2974         },
2975         {
2976                 .name   = "ignore_error",
2977                 .type   = FIO_OPT_STR,
2978                 .cb     = str_ignore_error_cb,
2979                 .help   = "Set a specific list of errors to ignore",
2980                 .parent = "rw",
2981                 .category = FIO_OPT_C_GENERAL,
2982                 .group  = FIO_OPT_G_ERR,
2983         },
2984         {
2985                 .name   = "error_dump",
2986                 .type   = FIO_OPT_BOOL,
2987                 .off1   = td_var_offset(error_dump),
2988                 .def    = "0",
2989                 .help   = "Dump info on each error",
2990                 .category = FIO_OPT_C_GENERAL,
2991                 .group  = FIO_OPT_G_ERR,
2992         },
2993         {
2994                 .name   = "profile",
2995                 .lname  = "Profile",
2996                 .type   = FIO_OPT_STR_STORE,
2997                 .off1   = td_var_offset(profile),
2998                 .help   = "Select a specific builtin performance test",
2999                 .category = FIO_OPT_C_PROFILE,
3000                 .group  = FIO_OPT_G_INVALID,
3001         },
3002         {
3003                 .name   = "cgroup",
3004                 .lname  = "Cgroup",
3005                 .type   = FIO_OPT_STR_STORE,
3006                 .off1   = td_var_offset(cgroup),
3007                 .help   = "Add job to cgroup of this name",
3008                 .category = FIO_OPT_C_GENERAL,
3009                 .group  = FIO_OPT_G_CGROUP,
3010         },
3011         {
3012                 .name   = "cgroup_nodelete",
3013                 .lname  = "Cgroup no-delete",
3014                 .type   = FIO_OPT_BOOL,
3015                 .off1   = td_var_offset(cgroup_nodelete),
3016                 .help   = "Do not delete cgroups after job completion",
3017                 .def    = "0",
3018                 .parent = "cgroup",
3019                 .category = FIO_OPT_C_GENERAL,
3020                 .group  = FIO_OPT_G_CGROUP,
3021         },
3022         {
3023                 .name   = "cgroup_weight",
3024                 .lname  = "Cgroup weight",
3025                 .type   = FIO_OPT_INT,
3026                 .off1   = td_var_offset(cgroup_weight),
3027                 .help   = "Use given weight for cgroup",
3028                 .minval = 100,
3029                 .maxval = 1000,
3030                 .parent = "cgroup",
3031                 .category = FIO_OPT_C_GENERAL,
3032                 .group  = FIO_OPT_G_CGROUP,
3033         },
3034         {
3035                 .name   = "uid",
3036                 .lname  = "User ID",
3037                 .type   = FIO_OPT_INT,
3038                 .off1   = td_var_offset(uid),
3039                 .help   = "Run job with this user ID",
3040                 .category = FIO_OPT_C_GENERAL,
3041                 .group  = FIO_OPT_G_CRED,
3042         },
3043         {
3044                 .name   = "gid",
3045                 .lname  = "Group ID",
3046                 .type   = FIO_OPT_INT,
3047                 .off1   = td_var_offset(gid),
3048                 .help   = "Run job with this group ID",
3049                 .category = FIO_OPT_C_GENERAL,
3050                 .group  = FIO_OPT_G_CRED,
3051         },
3052         {
3053                 .name   = "kb_base",
3054                 .lname  = "KB Base",
3055                 .type   = FIO_OPT_INT,
3056                 .off1   = td_var_offset(kb_base),
3057                 .verify = kb_base_verify,
3058                 .prio   = 1,
3059                 .def    = "1024",
3060                 .help   = "How many bytes per KB for reporting (1000 or 1024)",
3061                 .category = FIO_OPT_C_GENERAL,
3062                 .group  = FIO_OPT_G_INVALID,
3063         },
3064         {
3065                 .name   = "hugepage-size",
3066                 .lname  = "Hugepage size",
3067                 .type   = FIO_OPT_INT,
3068                 .off1   = td_var_offset(hugepage_size),
3069                 .help   = "When using hugepages, specify size of each page",
3070                 .def    = __fio_stringify(FIO_HUGE_PAGE),
3071                 .interval = 1024 * 1024,
3072                 .category = FIO_OPT_C_GENERAL,
3073                 .group  = FIO_OPT_G_INVALID,
3074         },
3075         {
3076                 .name   = "flow_id",
3077                 .lname  = "I/O flow ID",
3078                 .type   = FIO_OPT_INT,
3079                 .off1   = td_var_offset(flow_id),
3080                 .help   = "The flow index ID to use",
3081                 .def    = "0",
3082                 .category = FIO_OPT_C_IO,
3083                 .group  = FIO_OPT_G_IO_FLOW,
3084         },
3085         {
3086                 .name   = "flow",
3087                 .lname  = "I/O flow weight",
3088                 .type   = FIO_OPT_INT,
3089                 .off1   = td_var_offset(flow),
3090                 .help   = "Weight for flow control of this job",
3091                 .parent = "flow_id",
3092                 .hide   = 1,
3093                 .def    = "0",
3094                 .category = FIO_OPT_C_IO,
3095                 .group  = FIO_OPT_G_IO_FLOW,
3096         },
3097         {
3098                 .name   = "flow_watermark",
3099                 .lname  = "I/O flow watermark",
3100                 .type   = FIO_OPT_INT,
3101                 .off1   = td_var_offset(flow_watermark),
3102                 .help   = "High watermark for flow control. This option"
3103                         " should be set to the same value for all threads"
3104                         " with non-zero flow.",
3105                 .parent = "flow_id",
3106                 .hide   = 1,
3107                 .def    = "1024",
3108                 .category = FIO_OPT_C_IO,
3109                 .group  = FIO_OPT_G_IO_FLOW,
3110         },
3111         {
3112                 .name   = "flow_sleep",
3113                 .lname  = "I/O flow sleep",
3114                 .type   = FIO_OPT_INT,
3115                 .off1   = td_var_offset(flow_sleep),
3116                 .help   = "How many microseconds to sleep after being held"
3117                         " back by the flow control mechanism",
3118                 .parent = "flow_id",
3119                 .hide   = 1,
3120                 .def    = "0",
3121                 .category = FIO_OPT_C_IO,
3122                 .group  = FIO_OPT_G_IO_FLOW,
3123         },
3124         {
3125                 .name = NULL,
3126         },
3127 };
3128
3129 static void add_to_lopt(struct option *lopt, struct fio_option *o,
3130                         const char *name, int val)
3131 {
3132         lopt->name = (char *) name;
3133         lopt->val = val;
3134         if (o->type == FIO_OPT_STR_SET)
3135                 lopt->has_arg = no_argument;
3136         else
3137                 lopt->has_arg = required_argument;
3138 }
3139
3140 static void options_to_lopts(struct fio_option *opts,
3141                               struct option *long_options,
3142                               int i, int option_type)
3143 {
3144         struct fio_option *o = &opts[0];
3145         while (o->name) {
3146                 add_to_lopt(&long_options[i], o, o->name, option_type);
3147                 if (o->alias) {
3148                         i++;
3149                         add_to_lopt(&long_options[i], o, o->alias, option_type);
3150                 }
3151
3152                 i++;
3153                 o++;
3154                 assert(i < FIO_NR_OPTIONS);
3155         }
3156 }
3157
3158 void fio_options_set_ioengine_opts(struct option *long_options,
3159                                    struct thread_data *td)
3160 {
3161         unsigned int i;
3162
3163         i = 0;
3164         while (long_options[i].name) {
3165                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3166                         memset(&long_options[i], 0, sizeof(*long_options));
3167                         break;
3168                 }
3169                 i++;
3170         }
3171
3172         /*
3173          * Just clear out the prior ioengine options.
3174          */
3175         if (!td || !td->eo)
3176                 return;
3177
3178         options_to_lopts(td->io_ops->options, long_options, i,
3179                          FIO_GETOPT_IOENGINE);
3180 }
3181
3182 void fio_options_dup_and_init(struct option *long_options)
3183 {
3184         unsigned int i;
3185
3186         options_init(fio_options);
3187
3188         i = 0;
3189         while (long_options[i].name)
3190                 i++;
3191
3192         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3193 }
3194
3195 struct fio_keyword {
3196         const char *word;
3197         const char *desc;
3198         char *replace;
3199 };
3200
3201 static struct fio_keyword fio_keywords[] = {
3202         {
3203                 .word   = "$pagesize",
3204                 .desc   = "Page size in the system",
3205         },
3206         {
3207                 .word   = "$mb_memory",
3208                 .desc   = "Megabytes of memory online",
3209         },
3210         {
3211                 .word   = "$ncpus",
3212                 .desc   = "Number of CPUs online in the system",
3213         },
3214         {
3215                 .word   = NULL,
3216         },
3217 };
3218
3219 void fio_keywords_init(void)
3220 {
3221         unsigned long long mb_memory;
3222         char buf[128];
3223         long l;
3224
3225         sprintf(buf, "%lu", (unsigned long) page_size);
3226         fio_keywords[0].replace = strdup(buf);
3227
3228         mb_memory = os_phys_mem() / (1024 * 1024);
3229         sprintf(buf, "%llu", mb_memory);
3230         fio_keywords[1].replace = strdup(buf);
3231
3232         l = cpus_online();
3233         sprintf(buf, "%lu", l);
3234         fio_keywords[2].replace = strdup(buf);
3235 }
3236
3237 #define BC_APP          "bc"
3238
3239 static char *bc_calc(char *str)
3240 {
3241         char buf[128], *tmp;
3242         FILE *f;
3243         int ret;
3244
3245         /*
3246          * No math, just return string
3247          */
3248         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3249              !strchr(str, '/')) || strchr(str, '\''))
3250                 return str;
3251
3252         /*
3253          * Split option from value, we only need to calculate the value
3254          */
3255         tmp = strchr(str, '=');
3256         if (!tmp)
3257                 return str;
3258
3259         tmp++;
3260
3261         /*
3262          * Prevent buffer overflows; such a case isn't reasonable anyway
3263          */
3264         if (strlen(str) >= 128 || strlen(tmp) > 100)
3265                 return str;
3266
3267         sprintf(buf, "which %s > /dev/null", BC_APP);
3268         if (system(buf)) {
3269                 log_err("fio: bc is needed for performing math\n");
3270                 return NULL;
3271         }
3272
3273         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3274         f = popen(buf, "r");
3275         if (!f)
3276                 return NULL;
3277
3278         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3279         if (ret <= 0)
3280                 return NULL;
3281
3282         pclose(f);
3283         buf[(tmp - str) + ret - 1] = '\0';
3284         memcpy(buf, str, tmp - str);
3285         free(str);
3286         return strdup(buf);
3287 }
3288
3289 /*
3290  * Return a copy of the input string with substrings of the form ${VARNAME}
3291  * substituted with the value of the environment variable VARNAME.  The
3292  * substitution always occurs, even if VARNAME is empty or the corresponding
3293  * environment variable undefined.
3294  */
3295 static char *option_dup_subs(const char *opt)
3296 {
3297         char out[OPT_LEN_MAX+1];
3298         char in[OPT_LEN_MAX+1];
3299         char *outptr = out;
3300         char *inptr = in;
3301         char *ch1, *ch2, *env;
3302         ssize_t nchr = OPT_LEN_MAX;
3303         size_t envlen;
3304
3305         if (strlen(opt) + 1 > OPT_LEN_MAX) {
3306                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3307                 return NULL;
3308         }
3309
3310         in[OPT_LEN_MAX] = '\0';
3311         strncpy(in, opt, OPT_LEN_MAX);
3312
3313         while (*inptr && nchr > 0) {
3314                 if (inptr[0] == '$' && inptr[1] == '{') {
3315                         ch2 = strchr(inptr, '}');
3316                         if (ch2 && inptr+1 < ch2) {
3317                                 ch1 = inptr+2;
3318                                 inptr = ch2+1;
3319                                 *ch2 = '\0';
3320
3321                                 env = getenv(ch1);
3322                                 if (env) {
3323                                         envlen = strlen(env);
3324                                         if (envlen <= nchr) {
3325                                                 memcpy(outptr, env, envlen);
3326                                                 outptr += envlen;
3327                                                 nchr -= envlen;
3328                                         }
3329                                 }
3330
3331                                 continue;
3332                         }
3333                 }
3334
3335                 *outptr++ = *inptr++;
3336                 --nchr;
3337         }
3338
3339         *outptr = '\0';
3340         return strdup(out);
3341 }
3342
3343 /*
3344  * Look for reserved variable names and replace them with real values
3345  */
3346 static char *fio_keyword_replace(char *opt)
3347 {
3348         char *s;
3349         int i;
3350         int docalc = 0;
3351
3352         for (i = 0; fio_keywords[i].word != NULL; i++) {
3353                 struct fio_keyword *kw = &fio_keywords[i];
3354
3355                 while ((s = strstr(opt, kw->word)) != NULL) {
3356                         char *new = malloc(strlen(opt) + 1);
3357                         char *o_org = opt;
3358                         int olen = s - opt;
3359                         int len;
3360
3361                         /*
3362                          * Copy part of the string before the keyword and
3363                          * sprintf() the replacement after it.
3364                          */
3365                         memcpy(new, opt, olen);
3366                         len = sprintf(new + olen, "%s", kw->replace);
3367
3368                         /*
3369                          * If there's more in the original string, copy that
3370                          * in too
3371                          */
3372                         opt += strlen(kw->word) + olen;
3373                         if (strlen(opt))
3374                                 memcpy(new + olen + len, opt, opt - o_org - 1);
3375
3376                         /*
3377                          * replace opt and free the old opt
3378                          */
3379                         opt = new;
3380                         free(o_org);
3381
3382                         docalc = 1;
3383                 }
3384         }
3385
3386         /*
3387          * Check for potential math and invoke bc, if possible
3388          */
3389         if (docalc)
3390                 opt = bc_calc(opt);
3391
3392         return opt;
3393 }
3394
3395 static char **dup_and_sub_options(char **opts, int num_opts)
3396 {
3397         int i;
3398         char **opts_copy = malloc(num_opts * sizeof(*opts));
3399         for (i = 0; i < num_opts; i++) {
3400                 opts_copy[i] = option_dup_subs(opts[i]);
3401                 if (!opts_copy[i])
3402                         continue;
3403                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3404         }
3405         return opts_copy;
3406 }
3407
3408 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
3409 {
3410         int i, ret, unknown;
3411         char **opts_copy;
3412
3413         sort_options(opts, fio_options, num_opts);
3414         opts_copy = dup_and_sub_options(opts, num_opts);
3415
3416         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3417                 struct fio_option *o;
3418                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3419                                                 &o, td);
3420
3421                 if (opts_copy[i]) {
3422                         if (newret && !o) {
3423                                 unknown++;
3424                                 continue;
3425                         }
3426                         free(opts_copy[i]);
3427                         opts_copy[i] = NULL;
3428                 }
3429
3430                 ret |= newret;
3431         }
3432
3433         if (unknown) {
3434                 ret |= ioengine_load(td);
3435                 if (td->eo) {
3436                         sort_options(opts_copy, td->io_ops->options, num_opts);
3437                         opts = opts_copy;
3438                 }
3439                 for (i = 0; i < num_opts; i++) {
3440                         struct fio_option *o = NULL;
3441                         int newret = 1;
3442                         if (!opts_copy[i])
3443                                 continue;
3444
3445                         if (td->eo)
3446                                 newret = parse_option(opts_copy[i], opts[i],
3447                                                       td->io_ops->options, &o,
3448                                                       td->eo);
3449
3450                         ret |= newret;
3451                         if (!o)
3452                                 log_err("Bad option <%s>\n", opts[i]);
3453
3454                         free(opts_copy[i]);
3455                         opts_copy[i] = NULL;
3456                 }
3457         }
3458
3459         free(opts_copy);
3460         return ret;
3461 }
3462
3463 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3464 {
3465         return parse_cmd_option(opt, val, fio_options, td);
3466 }
3467
3468 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3469                                 char *val)
3470 {
3471         return parse_cmd_option(opt, val, td->io_ops->options, td);
3472 }
3473
3474 void fio_fill_default_options(struct thread_data *td)
3475 {
3476         fill_default_options(td, fio_options);
3477 }
3478
3479 int fio_show_option_help(const char *opt)
3480 {
3481         return show_cmd_help(fio_options, opt);
3482 }
3483
3484 void options_mem_dupe(void *data, struct fio_option *options)
3485 {
3486         struct fio_option *o;
3487         char **ptr;
3488
3489         for (o = &options[0]; o->name; o++) {
3490                 if (o->type != FIO_OPT_STR_STORE)
3491                         continue;
3492
3493                 ptr = td_var(data, o->off1);
3494                 if (*ptr)
3495                         *ptr = strdup(*ptr);
3496         }
3497 }
3498
3499 /*
3500  * dupe FIO_OPT_STR_STORE options
3501  */
3502 void fio_options_mem_dupe(struct thread_data *td)
3503 {
3504         options_mem_dupe(&td->o, fio_options);
3505
3506         if (td->eo && td->io_ops) {
3507                 void *oldeo = td->eo;
3508
3509                 td->eo = malloc(td->io_ops->option_struct_size);
3510                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3511                 options_mem_dupe(td->eo, td->io_ops->options);
3512         }
3513 }
3514
3515 unsigned int fio_get_kb_base(void *data)
3516 {
3517         struct thread_options *o = data;
3518         unsigned int kb_base = 0;
3519
3520         if (o)
3521                 kb_base = o->kb_base;
3522         if (!kb_base)
3523                 kb_base = 1024;
3524
3525         return kb_base;
3526 }
3527
3528 int add_option(struct fio_option *o)
3529 {
3530         struct fio_option *__o;
3531         int opt_index = 0;
3532
3533         __o = fio_options;
3534         while (__o->name) {
3535                 opt_index++;
3536                 __o++;
3537         }
3538
3539         memcpy(&fio_options[opt_index], o, sizeof(*o));
3540         return 0;
3541 }
3542
3543 void invalidate_profile_options(const char *prof_name)
3544 {
3545         struct fio_option *o;
3546
3547         o = fio_options;
3548         while (o->name) {
3549                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3550                         o->type = FIO_OPT_INVALID;
3551                         o->prof_name = NULL;
3552                 }
3553                 o++;
3554         }
3555 }
3556
3557 void add_opt_posval(const char *optname, const char *ival, const char *help)
3558 {
3559         struct fio_option *o;
3560         unsigned int i;
3561
3562         o = find_option(fio_options, optname);
3563         if (!o)
3564                 return;
3565
3566         for (i = 0; i < PARSE_MAX_VP; i++) {
3567                 if (o->posval[i].ival)
3568                         continue;
3569
3570                 o->posval[i].ival = ival;
3571                 o->posval[i].help = help;
3572                 break;
3573         }
3574 }
3575
3576 void del_opt_posval(const char *optname, const char *ival)
3577 {
3578         struct fio_option *o;
3579         unsigned int i;
3580
3581         o = find_option(fio_options, optname);
3582         if (!o)
3583                 return;
3584
3585         for (i = 0; i < PARSE_MAX_VP; i++) {
3586                 if (!o->posval[i].ival)
3587                         continue;
3588                 if (strcmp(o->posval[i].ival, ival))
3589                         continue;
3590
3591                 o->posval[i].ival = NULL;
3592                 o->posval[i].help = NULL;
3593         }
3594 }
3595
3596 void fio_options_free(struct thread_data *td)
3597 {
3598         options_free(fio_options, td);
3599         if (td->eo && td->io_ops && td->io_ops->options) {
3600                 options_free(td->io_ops->options, td->eo);
3601                 free(td->eo);
3602                 td->eo = NULL;
3603         }
3604 }
3605
3606 struct fio_option *fio_option_find(const char *name)
3607 {
3608         return find_option(fio_options, name);
3609 }
3610