options.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <ctype.h>
   5 #include <string.h>
   6 #include <assert.h>
   7 #include <libgen.h>
   8 #include <fcntl.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <netinet/in.h>
  12
  13 #include "fio.h"
  14 #include "verify.h"
  15 #include "parse.h"
  16 #include "lib/fls.h"
  17 #include "lib/pattern.h"
  18 #include "options.h"
  19 #include "optgroup.h"
  20
  21 char client_sockaddr_str[INET6_ADDRSTRLEN] = { 0 };
  22
  23 struct pattern_fmt_desc fmt_desc[] = {
  24         {
  25                 .fmt   = "%o",
  26                 .len   = FIELD_SIZE(struct io_u *, offset),
  27                 .paste = paste_blockoff
  28         }
  29 };
  30
  31 /*
  32  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  33  */
  34 static char *get_opt_postfix(const char *str)
  35 {
  36         char *p = strstr(str, ":");
  37
  38         if (!p)
  39                 return NULL;
  40
  41         p++;
  42         strip_blank_front(&p);
  43         strip_blank_end(p);
  44         return strdup(p);
  45 }
  46
  47 static int bs_cmp(const void *p1, const void *p2)
  48 {
  49         const struct bssplit *bsp1 = p1;
  50         const struct bssplit *bsp2 = p2;
  51
  52         return (int) bsp1->perc - (int) bsp2->perc;
  53 }
  54
  55 struct split {
  56         unsigned int nr;
  57         unsigned int val1[100];
  58         unsigned int val2[100];
  59 };
  60
  61 static int split_parse_ddir(struct thread_options *o, struct split *split,
  62                             enum fio_ddir ddir, char *str)
  63 {
  64         unsigned int i, perc;
  65         long long val;
  66         char *fname;
  67
  68         split->nr = 0;
  69
  70         i = 0;
  71         while ((fname = strsep(&str, ":")) != NULL) {
  72                 char *perc_str;
  73
  74                 if (!strlen(fname))
  75                         break;
  76
  77                 perc_str = strstr(fname, "/");
  78                 if (perc_str) {
  79                         *perc_str = '\0';
  80                         perc_str++;
  81                         perc = atoi(perc_str);
  82                         if (perc > 100)
  83                                 perc = 100;
  84                         else if (!perc)
  85                                 perc = -1U;
  86                 } else
  87                         perc = -1U;
  88
  89                 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
  90                         log_err("fio: bssplit conversion failed\n");
  91                         return 1;
  92                 }
  93
  94                 split->val1[i] = val;
  95                 split->val2[i] = perc;
  96                 i++;
  97                 if (i == 100)
  98                         break;
  99         }
 100
 101         split->nr = i;
 102         return 0;
 103 }
 104
 105 static int bssplit_ddir(struct thread_options *o, enum fio_ddir ddir, char *str)
 106 {
 107         unsigned int i, perc, perc_missing;
 108         unsigned int max_bs, min_bs;
 109         struct split split;
 110
 111         memset(&split, 0, sizeof(split));
 112
 113         if (split_parse_ddir(o, &split, ddir, str))
 114                 return 1;
 115         if (!split.nr)
 116                 return 0;
 117
 118         max_bs = 0;
 119         min_bs = -1;
 120         o->bssplit[ddir] = malloc(split.nr * sizeof(struct bssplit));
 121         o->bssplit_nr[ddir] = split.nr;
 122         for (i = 0; i < split.nr; i++) {
 123                 if (split.val1[i] > max_bs)
 124                         max_bs = split.val1[i];
 125                 if (split.val1[i] < min_bs)
 126                         min_bs = split.val1[i];
 127
 128                 o->bssplit[ddir][i].bs = split.val1[i];
 129                 o->bssplit[ddir][i].perc =split.val2[i];
 130         }
 131
 132         /*
 133          * Now check if the percentages add up, and how much is missing
 134          */
 135         perc = perc_missing = 0;
 136         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 137                 struct bssplit *bsp = &o->bssplit[ddir][i];
 138
 139                 if (bsp->perc == -1U)
 140                         perc_missing++;
 141                 else
 142                         perc += bsp->perc;
 143         }
 144
 145         if (perc > 100 && perc_missing > 1) {
 146                 log_err("fio: bssplit percentages add to more than 100%%\n");
 147                 free(o->bssplit[ddir]);
 148                 o->bssplit[ddir] = NULL;
 149                 return 1;
 150         }
 151
 152         /*
 153          * If values didn't have a percentage set, divide the remains between
 154          * them.
 155          */
 156         if (perc_missing) {
 157                 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
 158                         perc = 100;
 159                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 160                         struct bssplit *bsp = &o->bssplit[ddir][i];
 161
 162                         if (bsp->perc == -1U)
 163                                 bsp->perc = (100 - perc) / perc_missing;
 164                 }
 165         }
 166
 167         o->min_bs[ddir] = min_bs;
 168         o->max_bs[ddir] = max_bs;
 169
 170         /*
 171          * now sort based on percentages, for ease of lookup
 172          */
 173         qsort(o->bssplit[ddir], o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 174         return 0;
 175 }
 176
 177 typedef int (split_parse_fn)(struct thread_options *, enum fio_ddir, char *);
 178
 179 static int str_split_parse(struct thread_data *td, char *str, split_parse_fn *fn)
 180 {
 181         char *odir, *ddir;
 182         int ret = 0;
 183
 184         odir = strchr(str, ',');
 185         if (odir) {
 186                 ddir = strchr(odir + 1, ',');
 187                 if (ddir) {
 188                         ret = fn(&td->o, DDIR_TRIM, ddir + 1);
 189                         if (!ret)
 190                                 *ddir = '\0';
 191                 } else {
 192                         char *op;
 193
 194                         op = strdup(odir + 1);
 195                         ret = fn(&td->o, DDIR_TRIM, op);
 196
 197                         free(op);
 198                 }
 199                 if (!ret)
 200                         ret = fn(&td->o, DDIR_WRITE, odir + 1);
 201                 if (!ret) {
 202                         *odir = '\0';
 203                         ret = fn(&td->o, DDIR_READ, str);
 204                 }
 205         } else {
 206                 char *op;
 207
 208                 op = strdup(str);
 209                 ret = fn(&td->o, DDIR_WRITE, op);
 210                 free(op);
 211
 212                 if (!ret) {
 213                         op = strdup(str);
 214                         ret = fn(&td->o, DDIR_TRIM, op);
 215                         free(op);
 216                 }
 217                 if (!ret)
 218                         ret = fn(&td->o, DDIR_READ, str);
 219         }
 220
 221         return ret;
 222 }
 223
 224 static int str_bssplit_cb(void *data, const char *input)
 225 {
 226         struct thread_data *td = data;
 227         char *str, *p;
 228         int ret = 0;
 229
 230         p = str = strdup(input);
 231
 232         strip_blank_front(&str);
 233         strip_blank_end(str);
 234
 235         ret = str_split_parse(td, str, bssplit_ddir);
 236
 237         if (parse_dryrun()) {
 238                 int i;
 239
 240                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 241                         free(td->o.bssplit[i]);
 242                         td->o.bssplit[i] = NULL;
 243                         td->o.bssplit_nr[i] = 0;
 244                 }
 245         }
 246
 247         free(p);
 248         return ret;
 249 }
 250
 251 static int str2error(char *str)
 252 {
 253         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
 254                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
 255                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
 256                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
 257                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
 258                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
 259                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
 260                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
 261         int i = 0, num = sizeof(err) / sizeof(void *);
 262
 263         while (i < num) {
 264                 if (!strcmp(err[i], str))
 265                         return i + 1;
 266                 i++;
 267         }
 268         return 0;
 269 }
 270
 271 static int ignore_error_type(struct thread_data *td, int etype, char *str)
 272 {
 273         unsigned int i;
 274         int *error;
 275         char *fname;
 276
 277         if (etype >= ERROR_TYPE_CNT) {
 278                 log_err("Illegal error type\n");
 279                 return 1;
 280         }
 281
 282         td->o.ignore_error_nr[etype] = 4;
 283         error = malloc(4 * sizeof(struct bssplit));
 284
 285         i = 0;
 286         while ((fname = strsep(&str, ":")) != NULL) {
 287
 288                 if (!strlen(fname))
 289                         break;
 290
 291                 /*
 292                  * grow struct buffer, if needed
 293                  */
 294                 if (i == td->o.ignore_error_nr[etype]) {
 295                         td->o.ignore_error_nr[etype] <<= 1;
 296                         error = realloc(error, td->o.ignore_error_nr[etype]
 297                                                   * sizeof(int));
 298                 }
 299                 if (fname[0] == 'E') {
 300                         error[i] = str2error(fname);
 301                 } else {
 302                         error[i] = atoi(fname);
 303                         if (error[i] < 0)
 304                                 error[i] = -error[i];
 305                 }
 306                 if (!error[i]) {
 307                         log_err("Unknown error %s, please use number value \n",
 308                                   fname);
 309                         free(error);
 310                         return 1;
 311                 }
 312                 i++;
 313         }
 314         if (i) {
 315                 td->o.continue_on_error |= 1 << etype;
 316                 td->o.ignore_error_nr[etype] = i;
 317                 td->o.ignore_error[etype] = error;
 318         } else
 319                 free(error);
 320
 321         return 0;
 322
 323 }
 324
 325 static int str_ignore_error_cb(void *data, const char *input)
 326 {
 327         struct thread_data *td = data;
 328         char *str, *p, *n;
 329         int type = 0, ret = 1;
 330
 331         if (parse_dryrun())
 332                 return 0;
 333
 334         p = str = strdup(input);
 335
 336         strip_blank_front(&str);
 337         strip_blank_end(str);
 338
 339         while (p) {
 340                 n = strchr(p, ',');
 341                 if (n)
 342                         *n++ = '\0';
 343                 ret = ignore_error_type(td, type, p);
 344                 if (ret)
 345                         break;
 346                 p = n;
 347                 type++;
 348         }
 349         free(str);
 350         return ret;
 351 }
 352
 353 static int str_rw_cb(void *data, const char *str)
 354 {
 355         struct thread_data *td = data;
 356         struct thread_options *o = &td->o;
 357         char *nr;
 358
 359         if (parse_dryrun())
 360                 return 0;
 361
 362         o->ddir_seq_nr = 1;
 363         o->ddir_seq_add = 0;
 364
 365         nr = get_opt_postfix(str);
 366         if (!nr)
 367                 return 0;
 368
 369         if (td_random(td))
 370                 o->ddir_seq_nr = atoi(nr);
 371         else {
 372                 long long val;
 373
 374                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
 375                         log_err("fio: rw postfix parsing failed\n");
 376                         free(nr);
 377                         return 1;
 378                 }
 379
 380                 o->ddir_seq_add = val;
 381         }
 382
 383         free(nr);
 384         return 0;
 385 }
 386
 387 static int str_mem_cb(void *data, const char *mem)
 388 {
 389         struct thread_data *td = data;
 390
 391         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP ||
 392             td->o.mem_type == MEM_MMAPSHARED)
 393                 td->o.mmapfile = get_opt_postfix(mem);
 394
 395         return 0;
 396 }
 397
 398 static int fio_clock_source_cb(void *data, const char *str)
 399 {
 400         struct thread_data *td = data;
 401
 402         fio_clock_source = td->o.clocksource;
 403         fio_clock_source_set = 1;
 404         fio_clock_init();
 405         return 0;
 406 }
 407
 408 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 409 {
 410         struct thread_data *td = data;
 411
 412         td->o.rwmix[DDIR_READ] = *val;
 413         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 414         return 0;
 415 }
 416
 417 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 418 {
 419         struct thread_data *td = data;
 420
 421         td->o.rwmix[DDIR_WRITE] = *val;
 422         td->o.rwmix[DDIR_READ] = 100 - *val;
 423         return 0;
 424 }
 425
 426 static int str_exitall_cb(void)
 427 {
 428         exitall_on_terminate = 1;
 429         return 0;
 430 }
 431
 432 #ifdef FIO_HAVE_CPU_AFFINITY
 433 int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
 434 {
 435         unsigned int i, index, cpus_in_mask;
 436         const long max_cpu = cpus_online();
 437
 438         cpus_in_mask = fio_cpu_count(mask);
 439         cpu_index = cpu_index % cpus_in_mask;
 440
 441         index = 0;
 442         for (i = 0; i < max_cpu; i++) {
 443                 if (!fio_cpu_isset(mask, i))
 444                         continue;
 445
 446                 if (cpu_index != index)
 447                         fio_cpu_clear(mask, i);
 448
 449                 index++;
 450         }
 451
 452         return fio_cpu_count(mask);
 453 }
 454
 455 static int str_cpumask_cb(void *data, unsigned long long *val)
 456 {
 457         struct thread_data *td = data;
 458         unsigned int i;
 459         long max_cpu;
 460         int ret;
 461
 462         if (parse_dryrun())
 463                 return 0;
 464
 465         ret = fio_cpuset_init(&td->o.cpumask);
 466         if (ret < 0) {
 467                 log_err("fio: cpuset_init failed\n");
 468                 td_verror(td, ret, "fio_cpuset_init");
 469                 return 1;
 470         }
 471
 472         max_cpu = cpus_online();
 473
 474         for (i = 0; i < sizeof(int) * 8; i++) {
 475                 if ((1 << i) & *val) {
 476                         if (i >= max_cpu) {
 477                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 478                                                                 max_cpu - 1);
 479                                 return 1;
 480                         }
 481                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 482                         fio_cpu_set(&td->o.cpumask, i);
 483                 }
 484         }
 485
 486         return 0;
 487 }
 488
 489 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 490                             const char *input)
 491 {
 492         char *cpu, *str, *p;
 493         long max_cpu;
 494         int ret = 0;
 495
 496         ret = fio_cpuset_init(mask);
 497         if (ret < 0) {
 498                 log_err("fio: cpuset_init failed\n");
 499                 td_verror(td, ret, "fio_cpuset_init");
 500                 return 1;
 501         }
 502
 503         p = str = strdup(input);
 504
 505         strip_blank_front(&str);
 506         strip_blank_end(str);
 507
 508         max_cpu = cpus_online();
 509
 510         while ((cpu = strsep(&str, ",")) != NULL) {
 511                 char *str2, *cpu2;
 512                 int icpu, icpu2;
 513
 514                 if (!strlen(cpu))
 515                         break;
 516
 517                 str2 = cpu;
 518                 icpu2 = -1;
 519                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 520                         if (!strlen(cpu2))
 521                                 break;
 522
 523                         icpu2 = atoi(cpu2);
 524                 }
 525
 526                 icpu = atoi(cpu);
 527                 if (icpu2 == -1)
 528                         icpu2 = icpu;
 529                 while (icpu <= icpu2) {
 530                         if (icpu >= FIO_MAX_CPUS) {
 531                                 log_err("fio: your OS only supports up to"
 532                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 533                                 ret = 1;
 534                                 break;
 535                         }
 536                         if (icpu >= max_cpu) {
 537                                 log_err("fio: CPU %d too large (max=%ld)\n",
 538                                                         icpu, max_cpu - 1);
 539                                 ret = 1;
 540                                 break;
 541                         }
 542
 543                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 544                         fio_cpu_set(mask, icpu);
 545                         icpu++;
 546                 }
 547                 if (ret)
 548                         break;
 549         }
 550
 551         free(p);
 552         return ret;
 553 }
 554
 555 static int str_cpus_allowed_cb(void *data, const char *input)
 556 {
 557         struct thread_data *td = data;
 558
 559         if (parse_dryrun())
 560                 return 0;
 561
 562         return set_cpus_allowed(td, &td->o.cpumask, input);
 563 }
 564
 565 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 566 {
 567         struct thread_data *td = data;
 568
 569         if (parse_dryrun())
 570                 return 0;
 571
 572         return set_cpus_allowed(td, &td->o.verify_cpumask, input);
 573 }
 574
 575 #ifdef CONFIG_ZLIB
 576 static int str_log_cpus_allowed_cb(void *data, const char *input)
 577 {
 578         struct thread_data *td = data;
 579
 580         if (parse_dryrun())
 581                 return 0;
 582
 583         return set_cpus_allowed(td, &td->o.log_gz_cpumask, input);
 584 }
 585 #endif /* CONFIG_ZLIB */
 586
 587 #endif /* FIO_HAVE_CPU_AFFINITY */
 588
 589 #ifdef CONFIG_LIBNUMA
 590 static int str_numa_cpunodes_cb(void *data, char *input)
 591 {
 592         struct thread_data *td = data;
 593         struct bitmask *verify_bitmask;
 594
 595         if (parse_dryrun())
 596                 return 0;
 597
 598         /* numa_parse_nodestring() parses a character string list
 599          * of nodes into a bit mask. The bit mask is allocated by
 600          * numa_allocate_nodemask(), so it should be freed by
 601          * numa_free_nodemask().
 602          */
 603         verify_bitmask = numa_parse_nodestring(input);
 604         if (verify_bitmask == NULL) {
 605                 log_err("fio: numa_parse_nodestring failed\n");
 606                 td_verror(td, 1, "str_numa_cpunodes_cb");
 607                 return 1;
 608         }
 609         numa_free_nodemask(verify_bitmask);
 610
 611         td->o.numa_cpunodes = strdup(input);
 612         return 0;
 613 }
 614
 615 static int str_numa_mpol_cb(void *data, char *input)
 616 {
 617         struct thread_data *td = data;
 618         const char * const policy_types[] =
 619                 { "default", "prefer", "bind", "interleave", "local", NULL };
 620         int i;
 621         char *nodelist;
 622         struct bitmask *verify_bitmask;
 623
 624         if (parse_dryrun())
 625                 return 0;
 626
 627         nodelist = strchr(input, ':');
 628         if (nodelist) {
 629                 /* NUL-terminate mode */
 630                 *nodelist++ = '\0';
 631         }
 632
 633         for (i = 0; i <= MPOL_LOCAL; i++) {
 634                 if (!strcmp(input, policy_types[i])) {
 635                         td->o.numa_mem_mode = i;
 636                         break;
 637                 }
 638         }
 639         if (i > MPOL_LOCAL) {
 640                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
 641                 goto out;
 642         }
 643
 644         switch (td->o.numa_mem_mode) {
 645         case MPOL_PREFERRED:
 646                 /*
 647                  * Insist on a nodelist of one node only
 648                  */
 649                 if (nodelist) {
 650                         char *rest = nodelist;
 651                         while (isdigit(*rest))
 652                                 rest++;
 653                         if (*rest) {
 654                                 log_err("fio: one node only for \'prefer\'\n");
 655                                 goto out;
 656                         }
 657                 } else {
 658                         log_err("fio: one node is needed for \'prefer\'\n");
 659                         goto out;
 660                 }
 661                 break;
 662         case MPOL_INTERLEAVE:
 663                 /*
 664                  * Default to online nodes with memory if no nodelist
 665                  */
 666                 if (!nodelist)
 667                         nodelist = strdup("all");
 668                 break;
 669         case MPOL_LOCAL:
 670         case MPOL_DEFAULT:
 671                 /*
 672                  * Don't allow a nodelist
 673                  */
 674                 if (nodelist) {
 675                         log_err("fio: NO nodelist for \'local\'\n");
 676                         goto out;
 677                 }
 678                 break;
 679         case MPOL_BIND:
 680                 /*
 681                  * Insist on a nodelist
 682                  */
 683                 if (!nodelist) {
 684                         log_err("fio: a nodelist is needed for \'bind\'\n");
 685                         goto out;
 686                 }
 687                 break;
 688         }
 689
 690
 691         /* numa_parse_nodestring() parses a character string list
 692          * of nodes into a bit mask. The bit mask is allocated by
 693          * numa_allocate_nodemask(), so it should be freed by
 694          * numa_free_nodemask().
 695          */
 696         switch (td->o.numa_mem_mode) {
 697         case MPOL_PREFERRED:
 698                 td->o.numa_mem_prefer_node = atoi(nodelist);
 699                 break;
 700         case MPOL_INTERLEAVE:
 701         case MPOL_BIND:
 702                 verify_bitmask = numa_parse_nodestring(nodelist);
 703                 if (verify_bitmask == NULL) {
 704                         log_err("fio: numa_parse_nodestring failed\n");
 705                         td_verror(td, 1, "str_numa_memnodes_cb");
 706                         return 1;
 707                 }
 708                 td->o.numa_memnodes = strdup(nodelist);
 709                 numa_free_nodemask(verify_bitmask);
 710
 711                 break;
 712         case MPOL_LOCAL:
 713         case MPOL_DEFAULT:
 714         default:
 715                 break;
 716         }
 717
 718         return 0;
 719 out:
 720         return 1;
 721 }
 722 #endif
 723
 724 static int str_fst_cb(void *data, const char *str)
 725 {
 726         struct thread_data *td = data;
 727         char *nr = get_opt_postfix(str);
 728
 729         td->file_service_nr = 1;
 730         if (nr) {
 731                 td->file_service_nr = atoi(nr);
 732                 free(nr);
 733         }
 734
 735         return 0;
 736 }
 737
 738 #ifdef CONFIG_SYNC_FILE_RANGE
 739 static int str_sfr_cb(void *data, const char *str)
 740 {
 741         struct thread_data *td = data;
 742         char *nr = get_opt_postfix(str);
 743
 744         td->sync_file_range_nr = 1;
 745         if (nr) {
 746                 td->sync_file_range_nr = atoi(nr);
 747                 free(nr);
 748         }
 749
 750         return 0;
 751 }
 752 #endif
 753
 754 static int zone_cmp(const void *p1, const void *p2)
 755 {
 756         const struct zone_split *zsp1 = p1;
 757         const struct zone_split *zsp2 = p2;
 758
 759         return (int) zsp2->access_perc - (int) zsp1->access_perc;
 760 }
 761
 762 static int zone_split_ddir(struct thread_options *o, enum fio_ddir ddir,
 763                            char *str)
 764 {
 765         unsigned int i, perc, perc_missing, sperc, sperc_missing;
 766         struct split split;
 767
 768         memset(&split, 0, sizeof(split));
 769
 770         if (split_parse_ddir(o, &split, ddir, str))
 771                 return 1;
 772         if (!split.nr)
 773                 return 0;
 774
 775         o->zone_split[ddir] = malloc(split.nr * sizeof(struct zone_split));
 776         o->zone_split_nr[ddir] = split.nr;
 777         for (i = 0; i < split.nr; i++) {
 778                 o->zone_split[ddir][i].access_perc = split.val1[i];
 779                 o->zone_split[ddir][i].size_perc = split.val2[i];
 780         }
 781
 782         /*
 783          * Now check if the percentages add up, and how much is missing
 784          */
 785         perc = perc_missing = 0;
 786         sperc = sperc_missing = 0;
 787         for (i = 0; i < o->zone_split_nr[ddir]; i++) {
 788                 struct zone_split *zsp = &o->zone_split[ddir][i];
 789
 790                 if (zsp->access_perc == (uint8_t) -1U)
 791                         perc_missing++;
 792                 else
 793                         perc += zsp->access_perc;
 794
 795                 if (zsp->size_perc == (uint8_t) -1U)
 796                         sperc_missing++;
 797                 else
 798                         sperc += zsp->size_perc;
 799
 800         }
 801
 802         if (perc > 100 || sperc > 100) {
 803                 log_err("fio: zone_split percentages add to more than 100%%\n");
 804                 free(o->zone_split[ddir]);
 805                 o->zone_split[ddir] = NULL;
 806                 return 1;
 807         }
 808         if (perc < 100) {
 809                 log_err("fio: access percentage don't add up to 100 for zoned "
 810                         "random distribution (got=%u)\n", perc);
 811                 free(o->zone_split[ddir]);
 812                 o->zone_split[ddir] = NULL;
 813                 return 1;
 814         }
 815
 816         /*
 817          * If values didn't have a percentage set, divide the remains between
 818          * them.
 819          */
 820         if (perc_missing) {
 821                 if (perc_missing == 1 && o->zone_split_nr[ddir] == 1)
 822                         perc = 100;
 823                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
 824                         struct zone_split *zsp = &o->zone_split[ddir][i];
 825
 826                         if (zsp->access_perc == (uint8_t) -1U)
 827                                 zsp->access_perc = (100 - perc) / perc_missing;
 828                 }
 829         }
 830         if (sperc_missing) {
 831                 if (sperc_missing == 1 && o->zone_split_nr[ddir] == 1)
 832                         sperc = 100;
 833                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
 834                         struct zone_split *zsp = &o->zone_split[ddir][i];
 835
 836                         if (zsp->size_perc == (uint8_t) -1U)
 837                                 zsp->size_perc = (100 - sperc) / sperc_missing;
 838                 }
 839         }
 840
 841         /*
 842          * now sort based on percentages, for ease of lookup
 843          */
 844         qsort(o->zone_split[ddir], o->zone_split_nr[ddir], sizeof(struct zone_split), zone_cmp);
 845         return 0;
 846 }
 847
 848 static void __td_zone_gen_index(struct thread_data *td, enum fio_ddir ddir)
 849 {
 850         unsigned int i, j, sprev, aprev;
 851
 852         td->zone_state_index[ddir] = malloc(sizeof(struct zone_split_index) * 100);
 853
 854         sprev = aprev = 0;
 855         for (i = 0; i < td->o.zone_split_nr[ddir]; i++) {
 856                 struct zone_split *zsp = &td->o.zone_split[ddir][i];
 857
 858                 for (j = aprev; j < aprev + zsp->access_perc; j++) {
 859                         struct zone_split_index *zsi = &td->zone_state_index[ddir][j];
 860
 861                         zsi->size_perc = sprev + zsp->size_perc;
 862                         zsi->size_perc_prev = sprev;
 863                 }
 864
 865                 aprev += zsp->access_perc;
 866                 sprev += zsp->size_perc;
 867         }
 868 }
 869
 870 /*
 871  * Generate state table for indexes, so we don't have to do it inline from
 872  * the hot IO path
 873  */
 874 static void td_zone_gen_index(struct thread_data *td)
 875 {
 876         int i;
 877
 878         td->zone_state_index = malloc(DDIR_RWDIR_CNT *
 879                                         sizeof(struct zone_split_index *));
 880
 881         for (i = 0; i < DDIR_RWDIR_CNT; i++)
 882                 __td_zone_gen_index(td, i);
 883 }
 884
 885 static int parse_zoned_distribution(struct thread_data *td, const char *input)
 886 {
 887         char *str, *p;
 888         int i, ret = 0;
 889
 890         p = str = strdup(input);
 891
 892         strip_blank_front(&str);
 893         strip_blank_end(str);
 894
 895         /* We expect it to start like that, bail if not */
 896         if (strncmp(str, "zoned:", 6)) {
 897                 log_err("fio: mismatch in zoned input <%s>\n", str);
 898                 free(p);
 899                 return 1;
 900         }
 901         str += strlen("zoned:");
 902
 903         ret = str_split_parse(td, str, zone_split_ddir);
 904
 905         free(p);
 906
 907         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 908                 int j;
 909
 910                 dprint(FD_PARSE, "zone ddir %d (nr=%u): \n", i, td->o.zone_split_nr[i]);
 911
 912                 for (j = 0; j < td->o.zone_split_nr[i]; j++) {
 913                         struct zone_split *zsp = &td->o.zone_split[i][j];
 914
 915                         dprint(FD_PARSE, "\t%d: %u/%u\n", j, zsp->access_perc,
 916                                                                 zsp->size_perc);
 917                 }
 918         }
 919
 920         if (parse_dryrun()) {
 921                 int i;
 922
 923                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 924                         free(td->o.zone_split[i]);
 925                         td->o.zone_split[i] = NULL;
 926                         td->o.zone_split_nr[i] = 0;
 927                 }
 928
 929                 return ret;
 930         }
 931
 932         if (!ret)
 933                 td_zone_gen_index(td);
 934         else {
 935                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
 936                         td->o.zone_split_nr[i] = 0;
 937         }
 938
 939         return ret;
 940 }
 941
 942 static int str_random_distribution_cb(void *data, const char *str)
 943 {
 944         struct thread_data *td = data;
 945         double val;
 946         char *nr;
 947
 948         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
 949                 val = FIO_DEF_ZIPF;
 950         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
 951                 val = FIO_DEF_PARETO;
 952         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
 953                 val = 0.0;
 954         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
 955                 return parse_zoned_distribution(td, str);
 956         else
 957                 return 0;
 958
 959         nr = get_opt_postfix(str);
 960         if (nr && !str_to_float(nr, &val, 0)) {
 961                 log_err("fio: random postfix parsing failed\n");
 962                 free(nr);
 963                 return 1;
 964         }
 965
 966         free(nr);
 967
 968         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
 969                 if (val == 1.00) {
 970                         log_err("fio: zipf theta must different than 1.0\n");
 971                         return 1;
 972                 }
 973                 if (parse_dryrun())
 974                         return 0;
 975                 td->o.zipf_theta.u.f = val;
 976         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
 977                 if (val <= 0.00 || val >= 1.00) {
 978                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
 979                         return 1;
 980                 }
 981                 if (parse_dryrun())
 982                         return 0;
 983                 td->o.pareto_h.u.f = val;
 984         } else {
 985                 if (val <= 0.00 || val >= 100.0) {
 986                         log_err("fio: normal deviation out of range (0 < input < 100.0)\n");
 987                         return 1;
 988                 }
 989                 if (parse_dryrun())
 990                         return 0;
 991                 td->o.gauss_dev.u.f = val;
 992         }
 993
 994         return 0;
 995 }
 996
 997 /*
 998  * Return next name in the string. Files are separated with ':'. If the ':'
 999  * is escaped with a '\', then that ':' is part of the filename and does not
1000  * indicate a new file.
1001  */
1002 static char *get_next_name(char **ptr)
1003 {
1004         char *str = *ptr;
1005         char *p, *start;
1006
1007         if (!str || !strlen(str))
1008                 return NULL;
1009
1010         start = str;
1011         do {
1012                 /*
1013                  * No colon, we are done
1014                  */
1015                 p = strchr(str, ':');
1016                 if (!p) {
1017                         *ptr = NULL;
1018                         break;
1019                 }
1020
1021                 /*
1022                  * We got a colon, but it's the first character. Skip and
1023                  * continue
1024                  */
1025                 if (p == start) {
1026                         str = ++start;
1027                         continue;
1028                 }
1029
1030                 if (*(p - 1) != '\\') {
1031                         *p = '\0';
1032                         *ptr = p + 1;
1033                         break;
1034                 }
1035
1036                 memmove(p - 1, p, strlen(p) + 1);
1037                 str = p;
1038         } while (1);
1039
1040         return start;
1041 }
1042
1043
1044 static int get_max_name_idx(char *input)
1045 {
1046         unsigned int cur_idx;
1047         char *str, *p;
1048
1049         p = str = strdup(input);
1050         for (cur_idx = 0; ; cur_idx++)
1051                 if (get_next_name(&str) == NULL)
1052                         break;
1053
1054         free(p);
1055         return cur_idx;
1056 }
1057
1058 /*
1059  * Returns the directory at the index, indexes > entires will be
1060  * assigned via modulo division of the index
1061  */
1062 int set_name_idx(char *target, size_t tlen, char *input, int index)
1063 {
1064         unsigned int cur_idx;
1065         int len;
1066         char *fname, *str, *p;
1067
1068         p = str = strdup(input);
1069
1070         index %= get_max_name_idx(input);
1071         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1072                 fname = get_next_name(&str);
1073
1074         if (client_sockaddr_str[0]) {
1075                 len = snprintf(target, tlen, "%s/%s.", fname,
1076                                 client_sockaddr_str);
1077         } else
1078                 len = snprintf(target, tlen, "%s/", fname);
1079
1080         target[tlen - 1] = '\0';
1081         free(p);
1082
1083         return len;
1084 }
1085
1086 static int str_filename_cb(void *data, const char *input)
1087 {
1088         struct thread_data *td = data;
1089         char *fname, *str, *p;
1090
1091         p = str = strdup(input);
1092
1093         strip_blank_front(&str);
1094         strip_blank_end(str);
1095
1096         if (!td->files_index)
1097                 td->o.nr_files = 0;
1098
1099         while ((fname = get_next_name(&str)) != NULL) {
1100                 if (!strlen(fname))
1101                         break;
1102                 add_file(td, fname, 0, 1);
1103         }
1104
1105         free(p);
1106         return 0;
1107 }
1108
1109 static int str_directory_cb(void *data, const char fio_unused *unused)
1110 {
1111         struct thread_data *td = data;
1112         struct stat sb;
1113         char *dirname, *str, *p;
1114         int ret = 0;
1115
1116         if (parse_dryrun())
1117                 return 0;
1118
1119         p = str = strdup(td->o.directory);
1120         while ((dirname = get_next_name(&str)) != NULL) {
1121                 if (lstat(dirname, &sb) < 0) {
1122                         ret = errno;
1123
1124                         log_err("fio: %s is not a directory\n", dirname);
1125                         td_verror(td, ret, "lstat");
1126                         goto out;
1127                 }
1128                 if (!S_ISDIR(sb.st_mode)) {
1129                         log_err("fio: %s is not a directory\n", dirname);
1130                         ret = 1;
1131                         goto out;
1132                 }
1133         }
1134
1135 out:
1136         free(p);
1137         return ret;
1138 }
1139
1140 static int str_opendir_cb(void *data, const char fio_unused *str)
1141 {
1142         struct thread_data *td = data;
1143
1144         if (parse_dryrun())
1145                 return 0;
1146
1147         if (!td->files_index)
1148                 td->o.nr_files = 0;
1149
1150         return add_dir_files(td, td->o.opendir);
1151 }
1152
1153 static int str_buffer_pattern_cb(void *data, const char *input)
1154 {
1155         struct thread_data *td = data;
1156         int ret;
1157
1158         /* FIXME: for now buffer pattern does not support formats */
1159         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
1160                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
1161         if (ret < 0)
1162                 return 1;
1163
1164         assert(ret != 0);
1165         td->o.buffer_pattern_bytes = ret;
1166         if (!td->o.compress_percentage)
1167                 td->o.refill_buffers = 0;
1168         td->o.scramble_buffers = 0;
1169         td->o.zero_buffers = 0;
1170
1171         return 0;
1172 }
1173
1174 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1175 {
1176         struct thread_data *td = data;
1177
1178         td->flags |= TD_F_COMPRESS;
1179         td->o.compress_percentage = *il;
1180         return 0;
1181 }
1182
1183 static int str_dedupe_cb(void *data, unsigned long long *il)
1184 {
1185         struct thread_data *td = data;
1186
1187         td->flags |= TD_F_COMPRESS;
1188         td->o.dedupe_percentage = *il;
1189         td->o.refill_buffers = 1;
1190         return 0;
1191 }
1192
1193 static int str_verify_pattern_cb(void *data, const char *input)
1194 {
1195         struct thread_data *td = data;
1196         int ret;
1197
1198         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
1199         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
1200                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
1201                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
1202         if (ret < 0)
1203                 return 1;
1204
1205         assert(ret != 0);
1206         td->o.verify_pattern_bytes = ret;
1207         /*
1208          * VERIFY_* could already be set
1209          */
1210         if (!fio_option_is_set(&td->o, verify))
1211                 td->o.verify = VERIFY_PATTERN;
1212
1213         return 0;
1214 }
1215
1216 static int str_gtod_reduce_cb(void *data, int *il)
1217 {
1218         struct thread_data *td = data;
1219         int val = *il;
1220
1221         td->o.disable_lat = !!val;
1222         td->o.disable_clat = !!val;
1223         td->o.disable_slat = !!val;
1224         td->o.disable_bw = !!val;
1225         td->o.clat_percentiles = !val;
1226         if (val)
1227                 td->tv_cache_mask = 63;
1228
1229         return 0;
1230 }
1231
1232 static int str_size_cb(void *data, unsigned long long *__val)
1233 {
1234         struct thread_data *td = data;
1235         unsigned long long v = *__val;
1236
1237         if (parse_is_percent(v)) {
1238                 td->o.size = 0;
1239                 td->o.size_percent = -1ULL - v;
1240         } else
1241                 td->o.size = v;
1242
1243         return 0;
1244 }
1245
1246 static int rw_verify(struct fio_option *o, void *data)
1247 {
1248         struct thread_data *td = data;
1249
1250         if (read_only && td_write(td)) {
1251                 log_err("fio: job <%s> has write bit set, but fio is in"
1252                         " read-only mode\n", td->o.name);
1253                 return 1;
1254         }
1255
1256         return 0;
1257 }
1258
1259 static int gtod_cpu_verify(struct fio_option *o, void *data)
1260 {
1261 #ifndef FIO_HAVE_CPU_AFFINITY
1262         struct thread_data *td = data;
1263
1264         if (td->o.gtod_cpu) {
1265                 log_err("fio: platform must support CPU affinity for"
1266                         "gettimeofday() offloading\n");
1267                 return 1;
1268         }
1269 #endif
1270
1271         return 0;
1272 }
1273
1274 /*
1275  * Map of job/command line options
1276  */
1277 struct fio_option fio_options[FIO_MAX_OPTS] = {
1278         {
1279                 .name   = "description",
1280                 .lname  = "Description of job",
1281                 .type   = FIO_OPT_STR_STORE,
1282                 .off1   = td_var_offset(description),
1283                 .help   = "Text job description",
1284                 .category = FIO_OPT_C_GENERAL,
1285                 .group  = FIO_OPT_G_DESC,
1286         },
1287         {
1288                 .name   = "name",
1289                 .lname  = "Job name",
1290                 .type   = FIO_OPT_STR_STORE,
1291                 .off1   = td_var_offset(name),
1292                 .help   = "Name of this job",
1293                 .category = FIO_OPT_C_GENERAL,
1294                 .group  = FIO_OPT_G_DESC,
1295         },
1296         {
1297                 .name   = "wait_for",
1298                 .lname  = "Waitee name",
1299                 .type   = FIO_OPT_STR_STORE,
1300                 .off1   = td_var_offset(wait_for),
1301                 .help   = "Name of the job this one wants to wait for before starting",
1302                 .category = FIO_OPT_C_GENERAL,
1303                 .group  = FIO_OPT_G_DESC,
1304         },
1305         {
1306                 .name   = "filename",
1307                 .lname  = "Filename(s)",
1308                 .type   = FIO_OPT_STR_STORE,
1309                 .off1   = td_var_offset(filename),
1310                 .cb     = str_filename_cb,
1311                 .prio   = -1, /* must come after "directory" */
1312                 .help   = "File(s) to use for the workload",
1313                 .category = FIO_OPT_C_FILE,
1314                 .group  = FIO_OPT_G_FILENAME,
1315         },
1316         {
1317                 .name   = "directory",
1318                 .lname  = "Directory",
1319                 .type   = FIO_OPT_STR_STORE,
1320                 .off1   = td_var_offset(directory),
1321                 .cb     = str_directory_cb,
1322                 .help   = "Directory to store files in",
1323                 .category = FIO_OPT_C_FILE,
1324                 .group  = FIO_OPT_G_FILENAME,
1325         },
1326         {
1327                 .name   = "filename_format",
1328                 .type   = FIO_OPT_STR_STORE,
1329                 .off1   = td_var_offset(filename_format),
1330                 .prio   = -1, /* must come after "directory" */
1331                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1332                 .def    = "$jobname.$jobnum.$filenum",
1333                 .category = FIO_OPT_C_FILE,
1334                 .group  = FIO_OPT_G_FILENAME,
1335         },
1336         {
1337                 .name   = "lockfile",
1338                 .lname  = "Lockfile",
1339                 .type   = FIO_OPT_STR,
1340                 .off1   = td_var_offset(file_lock_mode),
1341                 .help   = "Lock file when doing IO to it",
1342                 .prio   = 1,
1343                 .parent = "filename",
1344                 .hide   = 0,
1345                 .def    = "none",
1346                 .category = FIO_OPT_C_FILE,
1347                 .group  = FIO_OPT_G_FILENAME,
1348                 .posval = {
1349                           { .ival = "none",
1350                             .oval = FILE_LOCK_NONE,
1351                             .help = "No file locking",
1352                           },
1353                           { .ival = "exclusive",
1354                             .oval = FILE_LOCK_EXCLUSIVE,
1355                             .help = "Exclusive file lock",
1356                           },
1357                           {
1358                             .ival = "readwrite",
1359                             .oval = FILE_LOCK_READWRITE,
1360                             .help = "Read vs write lock",
1361                           },
1362                 },
1363         },
1364         {
1365                 .name   = "opendir",
1366                 .lname  = "Open directory",
1367                 .type   = FIO_OPT_STR_STORE,
1368                 .off1   = td_var_offset(opendir),
1369                 .cb     = str_opendir_cb,
1370                 .help   = "Recursively add files from this directory and down",
1371                 .category = FIO_OPT_C_FILE,
1372                 .group  = FIO_OPT_G_FILENAME,
1373         },
1374         {
1375                 .name   = "rw",
1376                 .lname  = "Read/write",
1377                 .alias  = "readwrite",
1378                 .type   = FIO_OPT_STR,
1379                 .cb     = str_rw_cb,
1380                 .off1   = td_var_offset(td_ddir),
1381                 .help   = "IO direction",
1382                 .def    = "read",
1383                 .verify = rw_verify,
1384                 .category = FIO_OPT_C_IO,
1385                 .group  = FIO_OPT_G_IO_BASIC,
1386                 .posval = {
1387                           { .ival = "read",
1388                             .oval = TD_DDIR_READ,
1389                             .help = "Sequential read",
1390                           },
1391                           { .ival = "write",
1392                             .oval = TD_DDIR_WRITE,
1393                             .help = "Sequential write",
1394                           },
1395                           { .ival = "trim",
1396                             .oval = TD_DDIR_TRIM,
1397                             .help = "Sequential trim",
1398                           },
1399                           { .ival = "randread",
1400                             .oval = TD_DDIR_RANDREAD,
1401                             .help = "Random read",
1402                           },
1403                           { .ival = "randwrite",
1404                             .oval = TD_DDIR_RANDWRITE,
1405                             .help = "Random write",
1406                           },
1407                           { .ival = "randtrim",
1408                             .oval = TD_DDIR_RANDTRIM,
1409                             .help = "Random trim",
1410                           },
1411                           { .ival = "rw",
1412                             .oval = TD_DDIR_RW,
1413                             .help = "Sequential read and write mix",
1414                           },
1415                           { .ival = "readwrite",
1416                             .oval = TD_DDIR_RW,
1417                             .help = "Sequential read and write mix",
1418                           },
1419                           { .ival = "randrw",
1420                             .oval = TD_DDIR_RANDRW,
1421                             .help = "Random read and write mix"
1422                           },
1423                           { .ival = "trimwrite",
1424                             .oval = TD_DDIR_TRIMWRITE,
1425                             .help = "Trim and write mix, trims preceding writes"
1426                           },
1427                 },
1428         },
1429         {
1430                 .name   = "rw_sequencer",
1431                 .lname  = "RW Sequencer",
1432                 .type   = FIO_OPT_STR,
1433                 .off1   = td_var_offset(rw_seq),
1434                 .help   = "IO offset generator modifier",
1435                 .def    = "sequential",
1436                 .category = FIO_OPT_C_IO,
1437                 .group  = FIO_OPT_G_IO_BASIC,
1438                 .posval = {
1439                           { .ival = "sequential",
1440                             .oval = RW_SEQ_SEQ,
1441                             .help = "Generate sequential offsets",
1442                           },
1443                           { .ival = "identical",
1444                             .oval = RW_SEQ_IDENT,
1445                             .help = "Generate identical offsets",
1446                           },
1447                 },
1448         },
1449
1450         {
1451                 .name   = "ioengine",
1452                 .lname  = "IO Engine",
1453                 .type   = FIO_OPT_STR_STORE,
1454                 .off1   = td_var_offset(ioengine),
1455                 .help   = "IO engine to use",
1456                 .def    = FIO_PREFERRED_ENGINE,
1457                 .category = FIO_OPT_C_IO,
1458                 .group  = FIO_OPT_G_IO_BASIC,
1459                 .posval = {
1460                           { .ival = "sync",
1461                             .help = "Use read/write",
1462                           },
1463                           { .ival = "psync",
1464                             .help = "Use pread/pwrite",
1465                           },
1466                           { .ival = "vsync",
1467                             .help = "Use readv/writev",
1468                           },
1469 #ifdef CONFIG_PWRITEV
1470                           { .ival = "pvsync",
1471                             .help = "Use preadv/pwritev",
1472                           },
1473 #endif
1474 #ifdef CONFIG_PWRITEV
1475                           { .ival = "pvsync2",
1476                             .help = "Use preadv2/pwritev2",
1477                           },
1478 #endif
1479 #ifdef CONFIG_LIBAIO
1480                           { .ival = "libaio",
1481                             .help = "Linux native asynchronous IO",
1482                           },
1483 #endif
1484 #ifdef CONFIG_POSIXAIO
1485                           { .ival = "posixaio",
1486                             .help = "POSIX asynchronous IO",
1487                           },
1488 #endif
1489 #ifdef CONFIG_SOLARISAIO
1490                           { .ival = "solarisaio",
1491                             .help = "Solaris native asynchronous IO",
1492                           },
1493 #endif
1494 #ifdef CONFIG_WINDOWSAIO
1495                           { .ival = "windowsaio",
1496                             .help = "Windows native asynchronous IO"
1497                           },
1498 #endif
1499 #ifdef CONFIG_RBD
1500                           { .ival = "rbd",
1501                             .help = "Rados Block Device asynchronous IO"
1502                           },
1503 #endif
1504                           { .ival = "mmap",
1505                             .help = "Memory mapped IO"
1506                           },
1507 #ifdef CONFIG_LINUX_SPLICE
1508                           { .ival = "splice",
1509                             .help = "splice/vmsplice based IO",
1510                           },
1511                           { .ival = "netsplice",
1512                             .help = "splice/vmsplice to/from the network",
1513                           },
1514 #endif
1515 #ifdef FIO_HAVE_SGIO
1516                           { .ival = "sg",
1517                             .help = "SCSI generic v3 IO",
1518                           },
1519 #endif
1520                           { .ival = "null",
1521                             .help = "Testing engine (no data transfer)",
1522                           },
1523                           { .ival = "net",
1524                             .help = "Network IO",
1525                           },
1526                           { .ival = "cpuio",
1527                             .help = "CPU cycle burner engine",
1528                           },
1529 #ifdef CONFIG_GUASI
1530                           { .ival = "guasi",
1531                             .help = "GUASI IO engine",
1532                           },
1533 #endif
1534 #ifdef FIO_HAVE_BINJECT
1535                           { .ival = "binject",
1536                             .help = "binject direct inject block engine",
1537                           },
1538 #endif
1539 #ifdef CONFIG_RDMA
1540                           { .ival = "rdma",
1541                             .help = "RDMA IO engine",
1542                           },
1543 #endif
1544 #ifdef CONFIG_FUSION_AW
1545                           { .ival = "fusion-aw-sync",
1546                             .help = "Fusion-io atomic write engine",
1547                           },
1548 #endif
1549 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1550                           { .ival = "e4defrag",
1551                             .help = "ext4 defrag engine",
1552                           },
1553 #endif
1554 #ifdef CONFIG_LINUX_FALLOCATE
1555                           { .ival = "falloc",
1556                             .help = "fallocate() file based engine",
1557                           },
1558 #endif
1559 #ifdef CONFIG_GFAPI
1560                           { .ival = "gfapi",
1561                             .help = "Glusterfs libgfapi(sync) based engine"
1562                           },
1563                           { .ival = "gfapi_async",
1564                             .help = "Glusterfs libgfapi(async) based engine"
1565                           },
1566 #endif
1567 #ifdef CONFIG_LIBHDFS
1568                           { .ival = "libhdfs",
1569                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1570                           },
1571 #endif
1572                           { .ival = "external",
1573                             .help = "Load external engine (append name)",
1574                           },
1575                 },
1576         },
1577         {
1578                 .name   = "iodepth",
1579                 .lname  = "IO Depth",
1580                 .type   = FIO_OPT_INT,
1581                 .off1   = td_var_offset(iodepth),
1582                 .help   = "Number of IO buffers to keep in flight",
1583                 .minval = 1,
1584                 .interval = 1,
1585                 .def    = "1",
1586                 .category = FIO_OPT_C_IO,
1587                 .group  = FIO_OPT_G_IO_BASIC,
1588         },
1589         {
1590                 .name   = "iodepth_batch",
1591                 .lname  = "IO Depth batch",
1592                 .alias  = "iodepth_batch_submit",
1593                 .type   = FIO_OPT_INT,
1594                 .off1   = td_var_offset(iodepth_batch),
1595                 .help   = "Number of IO buffers to submit in one go",
1596                 .parent = "iodepth",
1597                 .hide   = 1,
1598                 .minval = 1,
1599                 .interval = 1,
1600                 .def    = "1",
1601                 .category = FIO_OPT_C_IO,
1602                 .group  = FIO_OPT_G_IO_BASIC,
1603         },
1604         {
1605                 .name   = "iodepth_batch_complete_min",
1606                 .lname  = "Min IO depth batch complete",
1607                 .alias  = "iodepth_batch_complete",
1608                 .type   = FIO_OPT_INT,
1609                 .off1   = td_var_offset(iodepth_batch_complete_min),
1610                 .help   = "Min number of IO buffers to retrieve in one go",
1611                 .parent = "iodepth",
1612                 .hide   = 1,
1613                 .minval = 0,
1614                 .interval = 1,
1615                 .def    = "1",
1616                 .category = FIO_OPT_C_IO,
1617                 .group  = FIO_OPT_G_IO_BASIC,
1618         },
1619         {
1620                 .name   = "iodepth_batch_complete_max",
1621                 .lname  = "Max IO depth batch complete",
1622                 .type   = FIO_OPT_INT,
1623                 .off1   = td_var_offset(iodepth_batch_complete_max),
1624                 .help   = "Max number of IO buffers to retrieve in one go",
1625                 .parent = "iodepth",
1626                 .hide   = 1,
1627                 .minval = 0,
1628                 .interval = 1,
1629                 .category = FIO_OPT_C_IO,
1630                 .group  = FIO_OPT_G_IO_BASIC,
1631         },
1632         {
1633                 .name   = "iodepth_low",
1634                 .lname  = "IO Depth batch low",
1635                 .type   = FIO_OPT_INT,
1636                 .off1   = td_var_offset(iodepth_low),
1637                 .help   = "Low water mark for queuing depth",
1638                 .parent = "iodepth",
1639                 .hide   = 1,
1640                 .interval = 1,
1641                 .category = FIO_OPT_C_IO,
1642                 .group  = FIO_OPT_G_IO_BASIC,
1643         },
1644         {
1645                 .name   = "io_submit_mode",
1646                 .lname  = "IO submit mode",
1647                 .type   = FIO_OPT_STR,
1648                 .off1   = td_var_offset(io_submit_mode),
1649                 .help   = "How IO submissions and completions are done",
1650                 .def    = "inline",
1651                 .category = FIO_OPT_C_IO,
1652                 .group  = FIO_OPT_G_IO_BASIC,
1653                 .posval = {
1654                           { .ival = "inline",
1655                             .oval = IO_MODE_INLINE,
1656                             .help = "Submit and complete IO inline",
1657                           },
1658                           { .ival = "offload",
1659                             .oval = IO_MODE_OFFLOAD,
1660                             .help = "Offload submit and complete to threads",
1661                           },
1662                 },
1663         },
1664         {
1665                 .name   = "size",
1666                 .lname  = "Size",
1667                 .type   = FIO_OPT_STR_VAL,
1668                 .cb     = str_size_cb,
1669                 .off1   = td_var_offset(size),
1670                 .help   = "Total size of device or files",
1671                 .interval = 1024 * 1024,
1672                 .category = FIO_OPT_C_IO,
1673                 .group  = FIO_OPT_G_INVALID,
1674         },
1675         {
1676                 .name   = "io_size",
1677                 .alias  = "io_limit",
1678                 .lname  = "IO Size",
1679                 .type   = FIO_OPT_STR_VAL,
1680                 .off1   = td_var_offset(io_limit),
1681                 .interval = 1024 * 1024,
1682                 .category = FIO_OPT_C_IO,
1683                 .group  = FIO_OPT_G_INVALID,
1684         },
1685         {
1686                 .name   = "fill_device",
1687                 .lname  = "Fill device",
1688                 .alias  = "fill_fs",
1689                 .type   = FIO_OPT_BOOL,
1690                 .off1   = td_var_offset(fill_device),
1691                 .help   = "Write until an ENOSPC error occurs",
1692                 .def    = "0",
1693                 .category = FIO_OPT_C_FILE,
1694                 .group  = FIO_OPT_G_INVALID,
1695         },
1696         {
1697                 .name   = "filesize",
1698                 .lname  = "File size",
1699                 .type   = FIO_OPT_STR_VAL,
1700                 .off1   = td_var_offset(file_size_low),
1701                 .off2   = td_var_offset(file_size_high),
1702                 .minval = 1,
1703                 .help   = "Size of individual files",
1704                 .interval = 1024 * 1024,
1705                 .category = FIO_OPT_C_FILE,
1706                 .group  = FIO_OPT_G_INVALID,
1707         },
1708         {
1709                 .name   = "file_append",
1710                 .lname  = "File append",
1711                 .type   = FIO_OPT_BOOL,
1712                 .off1   = td_var_offset(file_append),
1713                 .help   = "IO will start at the end of the file(s)",
1714                 .def    = "0",
1715                 .category = FIO_OPT_C_FILE,
1716                 .group  = FIO_OPT_G_INVALID,
1717         },
1718         {
1719                 .name   = "offset",
1720                 .lname  = "IO offset",
1721                 .alias  = "fileoffset",
1722                 .type   = FIO_OPT_STR_VAL,
1723                 .off1   = td_var_offset(start_offset),
1724                 .help   = "Start IO from this offset",
1725                 .def    = "0",
1726                 .interval = 1024 * 1024,
1727                 .category = FIO_OPT_C_IO,
1728                 .group  = FIO_OPT_G_INVALID,
1729         },
1730         {
1731                 .name   = "offset_increment",
1732                 .lname  = "IO offset increment",
1733                 .type   = FIO_OPT_STR_VAL,
1734                 .off1   = td_var_offset(offset_increment),
1735                 .help   = "What is the increment from one offset to the next",
1736                 .parent = "offset",
1737                 .hide   = 1,
1738                 .def    = "0",
1739                 .interval = 1024 * 1024,
1740                 .category = FIO_OPT_C_IO,
1741                 .group  = FIO_OPT_G_INVALID,
1742         },
1743         {
1744                 .name   = "number_ios",
1745                 .lname  = "Number of IOs to perform",
1746                 .type   = FIO_OPT_STR_VAL,
1747                 .off1   = td_var_offset(number_ios),
1748                 .help   = "Force job completion after this number of IOs",
1749                 .def    = "0",
1750                 .category = FIO_OPT_C_IO,
1751                 .group  = FIO_OPT_G_INVALID,
1752         },
1753         {
1754                 .name   = "bs",
1755                 .lname  = "Block size",
1756                 .alias  = "blocksize",
1757                 .type   = FIO_OPT_INT,
1758                 .off1   = td_var_offset(bs[DDIR_READ]),
1759                 .off2   = td_var_offset(bs[DDIR_WRITE]),
1760                 .off3   = td_var_offset(bs[DDIR_TRIM]),
1761                 .minval = 1,
1762                 .help   = "Block size unit",
1763                 .def    = "4k",
1764                 .parent = "rw",
1765                 .hide   = 1,
1766                 .interval = 512,
1767                 .category = FIO_OPT_C_IO,
1768                 .group  = FIO_OPT_G_INVALID,
1769         },
1770         {
1771                 .name   = "ba",
1772                 .lname  = "Block size align",
1773                 .alias  = "blockalign",
1774                 .type   = FIO_OPT_INT,
1775                 .off1   = td_var_offset(ba[DDIR_READ]),
1776                 .off2   = td_var_offset(ba[DDIR_WRITE]),
1777                 .off3   = td_var_offset(ba[DDIR_TRIM]),
1778                 .minval = 1,
1779                 .help   = "IO block offset alignment",
1780                 .parent = "rw",
1781                 .hide   = 1,
1782                 .interval = 512,
1783                 .category = FIO_OPT_C_IO,
1784                 .group  = FIO_OPT_G_INVALID,
1785         },
1786         {
1787                 .name   = "bsrange",
1788                 .lname  = "Block size range",
1789                 .alias  = "blocksize_range",
1790                 .type   = FIO_OPT_RANGE,
1791                 .off1   = td_var_offset(min_bs[DDIR_READ]),
1792                 .off2   = td_var_offset(max_bs[DDIR_READ]),
1793                 .off3   = td_var_offset(min_bs[DDIR_WRITE]),
1794                 .off4   = td_var_offset(max_bs[DDIR_WRITE]),
1795                 .off5   = td_var_offset(min_bs[DDIR_TRIM]),
1796                 .off6   = td_var_offset(max_bs[DDIR_TRIM]),
1797                 .minval = 1,
1798                 .help   = "Set block size range (in more detail than bs)",
1799                 .parent = "rw",
1800                 .hide   = 1,
1801                 .interval = 4096,
1802                 .category = FIO_OPT_C_IO,
1803                 .group  = FIO_OPT_G_INVALID,
1804         },
1805         {
1806                 .name   = "bssplit",
1807                 .lname  = "Block size split",
1808                 .type   = FIO_OPT_STR,
1809                 .cb     = str_bssplit_cb,
1810                 .off1   = td_var_offset(bssplit),
1811                 .help   = "Set a specific mix of block sizes",
1812                 .parent = "rw",
1813                 .hide   = 1,
1814                 .category = FIO_OPT_C_IO,
1815                 .group  = FIO_OPT_G_INVALID,
1816         },
1817         {
1818                 .name   = "bs_unaligned",
1819                 .lname  = "Block size unaligned",
1820                 .alias  = "blocksize_unaligned",
1821                 .type   = FIO_OPT_STR_SET,
1822                 .off1   = td_var_offset(bs_unaligned),
1823                 .help   = "Don't sector align IO buffer sizes",
1824                 .parent = "rw",
1825                 .hide   = 1,
1826                 .category = FIO_OPT_C_IO,
1827                 .group  = FIO_OPT_G_INVALID,
1828         },
1829         {
1830                 .name   = "bs_is_seq_rand",
1831                 .lname  = "Block size division is seq/random (not read/write)",
1832                 .type   = FIO_OPT_BOOL,
1833                 .off1   = td_var_offset(bs_is_seq_rand),
1834                 .help   = "Consider any blocksize setting to be sequential,random",
1835                 .def    = "0",
1836                 .parent = "blocksize",
1837                 .category = FIO_OPT_C_IO,
1838                 .group  = FIO_OPT_G_INVALID,
1839         },
1840         {
1841                 .name   = "randrepeat",
1842                 .lname  = "Random repeatable",
1843                 .type   = FIO_OPT_BOOL,
1844                 .off1   = td_var_offset(rand_repeatable),
1845                 .help   = "Use repeatable random IO pattern",
1846                 .def    = "1",
1847                 .parent = "rw",
1848                 .hide   = 1,
1849                 .category = FIO_OPT_C_IO,
1850                 .group  = FIO_OPT_G_RANDOM,
1851         },
1852         {
1853                 .name   = "randseed",
1854                 .lname  = "The random generator seed",
1855                 .type   = FIO_OPT_STR_VAL,
1856                 .off1   = td_var_offset(rand_seed),
1857                 .help   = "Set the random generator seed value",
1858                 .def    = "0x89",
1859                 .parent = "rw",
1860                 .category = FIO_OPT_C_IO,
1861                 .group  = FIO_OPT_G_RANDOM,
1862         },
1863         {
1864                 .name   = "use_os_rand",
1865                 .lname  = "Use OS random",
1866                 .type   = FIO_OPT_DEPRECATED,
1867                 .off1   = td_var_offset(dep_use_os_rand),
1868                 .category = FIO_OPT_C_IO,
1869                 .group  = FIO_OPT_G_RANDOM,
1870         },
1871         {
1872                 .name   = "norandommap",
1873                 .lname  = "No randommap",
1874                 .type   = FIO_OPT_STR_SET,
1875                 .off1   = td_var_offset(norandommap),
1876                 .help   = "Accept potential duplicate random blocks",
1877                 .parent = "rw",
1878                 .hide   = 1,
1879                 .hide_on_set = 1,
1880                 .category = FIO_OPT_C_IO,
1881                 .group  = FIO_OPT_G_RANDOM,
1882         },
1883         {
1884                 .name   = "softrandommap",
1885                 .lname  = "Soft randommap",
1886                 .type   = FIO_OPT_BOOL,
1887                 .off1   = td_var_offset(softrandommap),
1888                 .help   = "Set norandommap if randommap allocation fails",
1889                 .parent = "norandommap",
1890                 .hide   = 1,
1891                 .def    = "0",
1892                 .category = FIO_OPT_C_IO,
1893                 .group  = FIO_OPT_G_RANDOM,
1894         },
1895         {
1896                 .name   = "random_generator",
1897                 .type   = FIO_OPT_STR,
1898                 .off1   = td_var_offset(random_generator),
1899                 .help   = "Type of random number generator to use",
1900                 .def    = "tausworthe",
1901                 .posval = {
1902                           { .ival = "tausworthe",
1903                             .oval = FIO_RAND_GEN_TAUSWORTHE,
1904                             .help = "Strong Tausworthe generator",
1905                           },
1906                           { .ival = "lfsr",
1907                             .oval = FIO_RAND_GEN_LFSR,
1908                             .help = "Variable length LFSR",
1909                           },
1910                           {
1911                             .ival = "tausworthe64",
1912                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
1913                             .help = "64-bit Tausworthe variant",
1914                           },
1915                 },
1916                 .category = FIO_OPT_C_IO,
1917                 .group  = FIO_OPT_G_RANDOM,
1918         },
1919         {
1920                 .name   = "random_distribution",
1921                 .type   = FIO_OPT_STR,
1922                 .off1   = td_var_offset(random_distribution),
1923                 .cb     = str_random_distribution_cb,
1924                 .help   = "Random offset distribution generator",
1925                 .def    = "random",
1926                 .posval = {
1927                           { .ival = "random",
1928                             .oval = FIO_RAND_DIST_RANDOM,
1929                             .help = "Completely random",
1930                           },
1931                           { .ival = "zipf",
1932                             .oval = FIO_RAND_DIST_ZIPF,
1933                             .help = "Zipf distribution",
1934                           },
1935                           { .ival = "pareto",
1936                             .oval = FIO_RAND_DIST_PARETO,
1937                             .help = "Pareto distribution",
1938                           },
1939                           { .ival = "normal",
1940                             .oval = FIO_RAND_DIST_GAUSS,
1941                             .help = "Normal (gaussian) distribution",
1942                           },
1943                           { .ival = "zoned",
1944                             .oval = FIO_RAND_DIST_ZONED,
1945                             .help = "Zoned random distribution",
1946                           },
1947
1948                 },
1949                 .category = FIO_OPT_C_IO,
1950                 .group  = FIO_OPT_G_RANDOM,
1951         },
1952         {
1953                 .name   = "percentage_random",
1954                 .lname  = "Percentage Random",
1955                 .type   = FIO_OPT_INT,
1956                 .off1   = td_var_offset(perc_rand[DDIR_READ]),
1957                 .off2   = td_var_offset(perc_rand[DDIR_WRITE]),
1958                 .off3   = td_var_offset(perc_rand[DDIR_TRIM]),
1959                 .maxval = 100,
1960                 .help   = "Percentage of seq/random mix that should be random",
1961                 .def    = "100,100,100",
1962                 .interval = 5,
1963                 .inverse = "percentage_sequential",
1964                 .category = FIO_OPT_C_IO,
1965                 .group  = FIO_OPT_G_RANDOM,
1966         },
1967         {
1968                 .name   = "percentage_sequential",
1969                 .lname  = "Percentage Sequential",
1970                 .type   = FIO_OPT_DEPRECATED,
1971                 .category = FIO_OPT_C_IO,
1972                 .group  = FIO_OPT_G_RANDOM,
1973         },
1974         {
1975                 .name   = "allrandrepeat",
1976                 .type   = FIO_OPT_BOOL,
1977                 .off1   = td_var_offset(allrand_repeatable),
1978                 .help   = "Use repeatable random numbers for everything",
1979                 .def    = "0",
1980                 .category = FIO_OPT_C_IO,
1981                 .group  = FIO_OPT_G_RANDOM,
1982         },
1983         {
1984                 .name   = "nrfiles",
1985                 .lname  = "Number of files",
1986                 .alias  = "nr_files",
1987                 .type   = FIO_OPT_INT,
1988                 .off1   = td_var_offset(nr_files),
1989                 .help   = "Split job workload between this number of files",
1990                 .def    = "1",
1991                 .interval = 1,
1992                 .category = FIO_OPT_C_FILE,
1993                 .group  = FIO_OPT_G_INVALID,
1994         },
1995         {
1996                 .name   = "openfiles",
1997                 .lname  = "Number of open files",
1998                 .type   = FIO_OPT_INT,
1999                 .off1   = td_var_offset(open_files),
2000                 .help   = "Number of files to keep open at the same time",
2001                 .category = FIO_OPT_C_FILE,
2002                 .group  = FIO_OPT_G_INVALID,
2003         },
2004         {
2005                 .name   = "file_service_type",
2006                 .lname  = "File service type",
2007                 .type   = FIO_OPT_STR,
2008                 .cb     = str_fst_cb,
2009                 .off1   = td_var_offset(file_service_type),
2010                 .help   = "How to select which file to service next",
2011                 .def    = "roundrobin",
2012                 .category = FIO_OPT_C_FILE,
2013                 .group  = FIO_OPT_G_INVALID,
2014                 .posval = {
2015                           { .ival = "random",
2016                             .oval = FIO_FSERVICE_RANDOM,
2017                             .help = "Choose a file at random",
2018                           },
2019                           { .ival = "roundrobin",
2020                             .oval = FIO_FSERVICE_RR,
2021                             .help = "Round robin select files",
2022                           },
2023                           { .ival = "sequential",
2024                             .oval = FIO_FSERVICE_SEQ,
2025                             .help = "Finish one file before moving to the next",
2026                           },
2027                 },
2028                 .parent = "nrfiles",
2029                 .hide   = 1,
2030         },
2031 #ifdef CONFIG_POSIX_FALLOCATE
2032         {
2033                 .name   = "fallocate",
2034                 .lname  = "Fallocate",
2035                 .type   = FIO_OPT_STR,
2036                 .off1   = td_var_offset(fallocate_mode),
2037                 .help   = "Whether pre-allocation is performed when laying out files",
2038                 .def    = "posix",
2039                 .category = FIO_OPT_C_FILE,
2040                 .group  = FIO_OPT_G_INVALID,
2041                 .posval = {
2042                           { .ival = "none",
2043                             .oval = FIO_FALLOCATE_NONE,
2044                             .help = "Do not pre-allocate space",
2045                           },
2046                           { .ival = "posix",
2047                             .oval = FIO_FALLOCATE_POSIX,
2048                             .help = "Use posix_fallocate()",
2049                           },
2050 #ifdef CONFIG_LINUX_FALLOCATE
2051                           { .ival = "keep",
2052                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2053                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2054                           },
2055 #endif
2056                           /* Compatibility with former boolean values */
2057                           { .ival = "0",
2058                             .oval = FIO_FALLOCATE_NONE,
2059                             .help = "Alias for 'none'",
2060                           },
2061                           { .ival = "1",
2062                             .oval = FIO_FALLOCATE_POSIX,
2063                             .help = "Alias for 'posix'",
2064                           },
2065                 },
2066         },
2067 #endif  /* CONFIG_POSIX_FALLOCATE */
2068         {
2069                 .name   = "fadvise_hint",
2070                 .lname  = "Fadvise hint",
2071                 .type   = FIO_OPT_BOOL,
2072                 .off1   = td_var_offset(fadvise_hint),
2073                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2074                 .def    = "1",
2075                 .category = FIO_OPT_C_FILE,
2076                 .group  = FIO_OPT_G_INVALID,
2077         },
2078 #ifdef FIO_HAVE_STREAMID
2079         {
2080                 .name   = "fadvise_stream",
2081                 .lname  = "Fadvise stream",
2082                 .type   = FIO_OPT_INT,
2083                 .off1   = td_var_offset(fadvise_stream),
2084                 .help   = "Use fadvise() to set stream ID",
2085                 .category = FIO_OPT_C_FILE,
2086                 .group  = FIO_OPT_G_INVALID,
2087         },
2088 #endif
2089         {
2090                 .name   = "fsync",
2091                 .lname  = "Fsync",
2092                 .type   = FIO_OPT_INT,
2093                 .off1   = td_var_offset(fsync_blocks),
2094                 .help   = "Issue fsync for writes every given number of blocks",
2095                 .def    = "0",
2096                 .interval = 1,
2097                 .category = FIO_OPT_C_FILE,
2098                 .group  = FIO_OPT_G_INVALID,
2099         },
2100         {
2101                 .name   = "fdatasync",
2102                 .lname  = "Fdatasync",
2103                 .type   = FIO_OPT_INT,
2104                 .off1   = td_var_offset(fdatasync_blocks),
2105                 .help   = "Issue fdatasync for writes every given number of blocks",
2106                 .def    = "0",
2107                 .interval = 1,
2108                 .category = FIO_OPT_C_FILE,
2109                 .group  = FIO_OPT_G_INVALID,
2110         },
2111         {
2112                 .name   = "write_barrier",
2113                 .lname  = "Write barrier",
2114                 .type   = FIO_OPT_INT,
2115                 .off1   = td_var_offset(barrier_blocks),
2116                 .help   = "Make every Nth write a barrier write",
2117                 .def    = "0",
2118                 .interval = 1,
2119                 .category = FIO_OPT_C_IO,
2120                 .group  = FIO_OPT_G_INVALID,
2121         },
2122 #ifdef CONFIG_SYNC_FILE_RANGE
2123         {
2124                 .name   = "sync_file_range",
2125                 .lname  = "Sync file range",
2126                 .posval = {
2127                           { .ival = "wait_before",
2128                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2129                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2130                             .orval  = 1,
2131                           },
2132                           { .ival = "write",
2133                             .oval = SYNC_FILE_RANGE_WRITE,
2134                             .help = "SYNC_FILE_RANGE_WRITE",
2135                             .orval  = 1,
2136                           },
2137                           {
2138                             .ival = "wait_after",
2139                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2140                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2141                             .orval  = 1,
2142                           },
2143                 },
2144                 .type   = FIO_OPT_STR_MULTI,
2145                 .cb     = str_sfr_cb,
2146                 .off1   = td_var_offset(sync_file_range),
2147                 .help   = "Use sync_file_range()",
2148                 .category = FIO_OPT_C_FILE,
2149                 .group  = FIO_OPT_G_INVALID,
2150         },
2151 #endif
2152         {
2153                 .name   = "direct",
2154                 .lname  = "Direct I/O",
2155                 .type   = FIO_OPT_BOOL,
2156                 .off1   = td_var_offset(odirect),
2157                 .help   = "Use O_DIRECT IO (negates buffered)",
2158                 .def    = "0",
2159                 .inverse = "buffered",
2160                 .category = FIO_OPT_C_IO,
2161                 .group  = FIO_OPT_G_IO_TYPE,
2162         },
2163         {
2164                 .name   = "atomic",
2165                 .lname  = "Atomic I/O",
2166                 .type   = FIO_OPT_BOOL,
2167                 .off1   = td_var_offset(oatomic),
2168                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2169                 .def    = "0",
2170                 .category = FIO_OPT_C_IO,
2171                 .group  = FIO_OPT_G_IO_TYPE,
2172         },
2173         {
2174                 .name   = "buffered",
2175                 .lname  = "Buffered I/O",
2176                 .type   = FIO_OPT_BOOL,
2177                 .off1   = td_var_offset(odirect),
2178                 .neg    = 1,
2179                 .help   = "Use buffered IO (negates direct)",
2180                 .def    = "1",
2181                 .inverse = "direct",
2182                 .category = FIO_OPT_C_IO,
2183                 .group  = FIO_OPT_G_IO_TYPE,
2184         },
2185         {
2186                 .name   = "overwrite",
2187                 .lname  = "Overwrite",
2188                 .type   = FIO_OPT_BOOL,
2189                 .off1   = td_var_offset(overwrite),
2190                 .help   = "When writing, set whether to overwrite current data",
2191                 .def    = "0",
2192                 .category = FIO_OPT_C_FILE,
2193                 .group  = FIO_OPT_G_INVALID,
2194         },
2195         {
2196                 .name   = "loops",
2197                 .lname  = "Loops",
2198                 .type   = FIO_OPT_INT,
2199                 .off1   = td_var_offset(loops),
2200                 .help   = "Number of times to run the job",
2201                 .def    = "1",
2202                 .interval = 1,
2203                 .category = FIO_OPT_C_GENERAL,
2204                 .group  = FIO_OPT_G_RUNTIME,
2205         },
2206         {
2207                 .name   = "numjobs",
2208                 .lname  = "Number of jobs",
2209                 .type   = FIO_OPT_INT,
2210                 .off1   = td_var_offset(numjobs),
2211                 .help   = "Duplicate this job this many times",
2212                 .def    = "1",
2213                 .interval = 1,
2214                 .category = FIO_OPT_C_GENERAL,
2215                 .group  = FIO_OPT_G_RUNTIME,
2216         },
2217         {
2218                 .name   = "startdelay",
2219                 .lname  = "Start delay",
2220                 .type   = FIO_OPT_STR_VAL_TIME,
2221                 .off1   = td_var_offset(start_delay),
2222                 .off2   = td_var_offset(start_delay_high),
2223                 .help   = "Only start job when this period has passed",
2224                 .def    = "0",
2225                 .is_seconds = 1,
2226                 .is_time = 1,
2227                 .category = FIO_OPT_C_GENERAL,
2228                 .group  = FIO_OPT_G_RUNTIME,
2229         },
2230         {
2231                 .name   = "runtime",
2232                 .lname  = "Runtime",
2233                 .alias  = "timeout",
2234                 .type   = FIO_OPT_STR_VAL_TIME,
2235                 .off1   = td_var_offset(timeout),
2236                 .help   = "Stop workload when this amount of time has passed",
2237                 .def    = "0",
2238                 .is_seconds = 1,
2239                 .is_time = 1,
2240                 .category = FIO_OPT_C_GENERAL,
2241                 .group  = FIO_OPT_G_RUNTIME,
2242         },
2243         {
2244                 .name   = "time_based",
2245                 .lname  = "Time based",
2246                 .type   = FIO_OPT_STR_SET,
2247                 .off1   = td_var_offset(time_based),
2248                 .help   = "Keep running until runtime/timeout is met",
2249                 .category = FIO_OPT_C_GENERAL,
2250                 .group  = FIO_OPT_G_RUNTIME,
2251         },
2252         {
2253                 .name   = "verify_only",
2254                 .lname  = "Verify only",
2255                 .type   = FIO_OPT_STR_SET,
2256                 .off1   = td_var_offset(verify_only),
2257                 .help   = "Verifies previously written data is still valid",
2258                 .category = FIO_OPT_C_GENERAL,
2259                 .group  = FIO_OPT_G_RUNTIME,
2260         },
2261         {
2262                 .name   = "ramp_time",
2263                 .lname  = "Ramp time",
2264                 .type   = FIO_OPT_STR_VAL_TIME,
2265                 .off1   = td_var_offset(ramp_time),
2266                 .help   = "Ramp up time before measuring performance",
2267                 .is_seconds = 1,
2268                 .is_time = 1,
2269                 .category = FIO_OPT_C_GENERAL,
2270                 .group  = FIO_OPT_G_RUNTIME,
2271         },
2272         {
2273                 .name   = "clocksource",
2274                 .lname  = "Clock source",
2275                 .type   = FIO_OPT_STR,
2276                 .cb     = fio_clock_source_cb,
2277                 .off1   = td_var_offset(clocksource),
2278                 .help   = "What type of timing source to use",
2279                 .category = FIO_OPT_C_GENERAL,
2280                 .group  = FIO_OPT_G_CLOCK,
2281                 .posval = {
2282 #ifdef CONFIG_GETTIMEOFDAY
2283                           { .ival = "gettimeofday",
2284                             .oval = CS_GTOD,
2285                             .help = "Use gettimeofday(2) for timing",
2286                           },
2287 #endif
2288 #ifdef CONFIG_CLOCK_GETTIME
2289                           { .ival = "clock_gettime",
2290                             .oval = CS_CGETTIME,
2291                             .help = "Use clock_gettime(2) for timing",
2292                           },
2293 #endif
2294 #ifdef ARCH_HAVE_CPU_CLOCK
2295                           { .ival = "cpu",
2296                             .oval = CS_CPUCLOCK,
2297                             .help = "Use CPU private clock",
2298                           },
2299 #endif
2300                 },
2301         },
2302         {
2303                 .name   = "mem",
2304                 .alias  = "iomem",
2305                 .lname  = "I/O Memory",
2306                 .type   = FIO_OPT_STR,
2307                 .cb     = str_mem_cb,
2308                 .off1   = td_var_offset(mem_type),
2309                 .help   = "Backing type for IO buffers",
2310                 .def    = "malloc",
2311                 .category = FIO_OPT_C_IO,
2312                 .group  = FIO_OPT_G_INVALID,
2313                 .posval = {
2314                           { .ival = "malloc",
2315                             .oval = MEM_MALLOC,
2316                             .help = "Use malloc(3) for IO buffers",
2317                           },
2318 #ifndef CONFIG_NO_SHM
2319                           { .ival = "shm",
2320                             .oval = MEM_SHM,
2321                             .help = "Use shared memory segments for IO buffers",
2322                           },
2323 #ifdef FIO_HAVE_HUGETLB
2324                           { .ival = "shmhuge",
2325                             .oval = MEM_SHMHUGE,
2326                             .help = "Like shm, but use huge pages",
2327                           },
2328 #endif
2329 #endif
2330                           { .ival = "mmap",
2331                             .oval = MEM_MMAP,
2332                             .help = "Use mmap(2) (file or anon) for IO buffers",
2333                           },
2334                           { .ival = "mmapshared",
2335                             .oval = MEM_MMAPSHARED,
2336                             .help = "Like mmap, but use the shared flag",
2337                           },
2338 #ifdef FIO_HAVE_HUGETLB
2339                           { .ival = "mmaphuge",
2340                             .oval = MEM_MMAPHUGE,
2341                             .help = "Like mmap, but use huge pages",
2342                           },
2343 #endif
2344                   },
2345         },
2346         {
2347                 .name   = "iomem_align",
2348                 .alias  = "mem_align",
2349                 .lname  = "I/O memory alignment",
2350                 .type   = FIO_OPT_INT,
2351                 .off1   = td_var_offset(mem_align),
2352                 .minval = 0,
2353                 .help   = "IO memory buffer offset alignment",
2354                 .def    = "0",
2355                 .parent = "iomem",
2356                 .hide   = 1,
2357                 .category = FIO_OPT_C_IO,
2358                 .group  = FIO_OPT_G_INVALID,
2359         },
2360         {
2361                 .name   = "verify",
2362                 .lname  = "Verify",
2363                 .type   = FIO_OPT_STR,
2364                 .off1   = td_var_offset(verify),
2365                 .help   = "Verify data written",
2366                 .def    = "0",
2367                 .category = FIO_OPT_C_IO,
2368                 .group  = FIO_OPT_G_VERIFY,
2369                 .posval = {
2370                           { .ival = "0",
2371                             .oval = VERIFY_NONE,
2372                             .help = "Don't do IO verification",
2373                           },
2374                           { .ival = "md5",
2375                             .oval = VERIFY_MD5,
2376                             .help = "Use md5 checksums for verification",
2377                           },
2378                           { .ival = "crc64",
2379                             .oval = VERIFY_CRC64,
2380                             .help = "Use crc64 checksums for verification",
2381                           },
2382                           { .ival = "crc32",
2383                             .oval = VERIFY_CRC32,
2384                             .help = "Use crc32 checksums for verification",
2385                           },
2386                           { .ival = "crc32c-intel",
2387                             .oval = VERIFY_CRC32C,
2388                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2389                           },
2390                           { .ival = "crc32c",
2391                             .oval = VERIFY_CRC32C,
2392                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2393                           },
2394                           { .ival = "crc16",
2395                             .oval = VERIFY_CRC16,
2396                             .help = "Use crc16 checksums for verification",
2397                           },
2398                           { .ival = "crc7",
2399                             .oval = VERIFY_CRC7,
2400                             .help = "Use crc7 checksums for verification",
2401                           },
2402                           { .ival = "sha1",
2403                             .oval = VERIFY_SHA1,
2404                             .help = "Use sha1 checksums for verification",
2405                           },
2406                           { .ival = "sha256",
2407                             .oval = VERIFY_SHA256,
2408                             .help = "Use sha256 checksums for verification",
2409                           },
2410                           { .ival = "sha512",
2411                             .oval = VERIFY_SHA512,
2412                             .help = "Use sha512 checksums for verification",
2413                           },
2414                           { .ival = "xxhash",
2415                             .oval = VERIFY_XXHASH,
2416                             .help = "Use xxhash checksums for verification",
2417                           },
2418                           /* Meta information was included into verify_header,
2419                            * 'meta' verification is implied by default. */
2420                           { .ival = "meta",
2421                             .oval = VERIFY_HDR_ONLY,
2422                             .help = "Use io information for verification. "
2423                                     "Now is implied by default, thus option is obsolete, "
2424                                     "don't use it",
2425                           },
2426                           { .ival = "pattern",
2427                             .oval = VERIFY_PATTERN_NO_HDR,
2428                             .help = "Verify strict pattern",
2429                           },
2430                           {
2431                             .ival = "null",
2432                             .oval = VERIFY_NULL,
2433                             .help = "Pretend to verify",
2434                           },
2435                 },
2436         },
2437         {
2438                 .name   = "do_verify",
2439                 .lname  = "Perform verify step",
2440                 .type   = FIO_OPT_BOOL,
2441                 .off1   = td_var_offset(do_verify),
2442                 .help   = "Run verification stage after write",
2443                 .def    = "1",
2444                 .parent = "verify",
2445                 .hide   = 1,
2446                 .category = FIO_OPT_C_IO,
2447                 .group  = FIO_OPT_G_VERIFY,
2448         },
2449         {
2450                 .name   = "verifysort",
2451                 .lname  = "Verify sort",
2452                 .type   = FIO_OPT_BOOL,
2453                 .off1   = td_var_offset(verifysort),
2454                 .help   = "Sort written verify blocks for read back",
2455                 .def    = "1",
2456                 .parent = "verify",
2457                 .hide   = 1,
2458                 .category = FIO_OPT_C_IO,
2459                 .group  = FIO_OPT_G_VERIFY,
2460         },
2461         {
2462                 .name   = "verifysort_nr",
2463                 .type   = FIO_OPT_INT,
2464                 .off1   = td_var_offset(verifysort_nr),
2465                 .help   = "Pre-load and sort verify blocks for a read workload",
2466                 .minval = 0,
2467                 .maxval = 131072,
2468                 .def    = "1024",
2469                 .parent = "verify",
2470                 .category = FIO_OPT_C_IO,
2471                 .group  = FIO_OPT_G_VERIFY,
2472         },
2473         {
2474                 .name   = "verify_interval",
2475                 .lname  = "Verify interval",
2476                 .type   = FIO_OPT_INT,
2477                 .off1   = td_var_offset(verify_interval),
2478                 .minval = 2 * sizeof(struct verify_header),
2479                 .help   = "Store verify buffer header every N bytes",
2480                 .parent = "verify",
2481                 .hide   = 1,
2482                 .interval = 2 * sizeof(struct verify_header),
2483                 .category = FIO_OPT_C_IO,
2484                 .group  = FIO_OPT_G_VERIFY,
2485         },
2486         {
2487                 .name   = "verify_offset",
2488                 .lname  = "Verify offset",
2489                 .type   = FIO_OPT_INT,
2490                 .help   = "Offset verify header location by N bytes",
2491                 .off1   = td_var_offset(verify_offset),
2492                 .minval = sizeof(struct verify_header),
2493                 .parent = "verify",
2494                 .hide   = 1,
2495                 .category = FIO_OPT_C_IO,
2496                 .group  = FIO_OPT_G_VERIFY,
2497         },
2498         {
2499                 .name   = "verify_pattern",
2500                 .lname  = "Verify pattern",
2501                 .type   = FIO_OPT_STR,
2502                 .cb     = str_verify_pattern_cb,
2503                 .off1   = td_var_offset(verify_pattern),
2504                 .help   = "Fill pattern for IO buffers",
2505                 .parent = "verify",
2506                 .hide   = 1,
2507                 .category = FIO_OPT_C_IO,
2508                 .group  = FIO_OPT_G_VERIFY,
2509         },
2510         {
2511                 .name   = "verify_fatal",
2512                 .lname  = "Verify fatal",
2513                 .type   = FIO_OPT_BOOL,
2514                 .off1   = td_var_offset(verify_fatal),
2515                 .def    = "0",
2516                 .help   = "Exit on a single verify failure, don't continue",
2517                 .parent = "verify",
2518                 .hide   = 1,
2519                 .category = FIO_OPT_C_IO,
2520                 .group  = FIO_OPT_G_VERIFY,
2521         },
2522         {
2523                 .name   = "verify_dump",
2524                 .lname  = "Verify dump",
2525                 .type   = FIO_OPT_BOOL,
2526                 .off1   = td_var_offset(verify_dump),
2527                 .def    = "0",
2528                 .help   = "Dump contents of good and bad blocks on failure",
2529                 .parent = "verify",
2530                 .hide   = 1,
2531                 .category = FIO_OPT_C_IO,
2532                 .group  = FIO_OPT_G_VERIFY,
2533         },
2534         {
2535                 .name   = "verify_async",
2536                 .lname  = "Verify asynchronously",
2537                 .type   = FIO_OPT_INT,
2538                 .off1   = td_var_offset(verify_async),
2539                 .def    = "0",
2540                 .help   = "Number of async verifier threads to use",
2541                 .parent = "verify",
2542                 .hide   = 1,
2543                 .category = FIO_OPT_C_IO,
2544                 .group  = FIO_OPT_G_VERIFY,
2545         },
2546         {
2547                 .name   = "verify_backlog",
2548                 .lname  = "Verify backlog",
2549                 .type   = FIO_OPT_STR_VAL,
2550                 .off1   = td_var_offset(verify_backlog),
2551                 .help   = "Verify after this number of blocks are written",
2552                 .parent = "verify",
2553                 .hide   = 1,
2554                 .category = FIO_OPT_C_IO,
2555                 .group  = FIO_OPT_G_VERIFY,
2556         },
2557         {
2558                 .name   = "verify_backlog_batch",
2559                 .lname  = "Verify backlog batch",
2560                 .type   = FIO_OPT_INT,
2561                 .off1   = td_var_offset(verify_batch),
2562                 .help   = "Verify this number of IO blocks",
2563                 .parent = "verify",
2564                 .hide   = 1,
2565                 .category = FIO_OPT_C_IO,
2566                 .group  = FIO_OPT_G_VERIFY,
2567         },
2568 #ifdef FIO_HAVE_CPU_AFFINITY
2569         {
2570                 .name   = "verify_async_cpus",
2571                 .lname  = "Async verify CPUs",
2572                 .type   = FIO_OPT_STR,
2573                 .cb     = str_verify_cpus_allowed_cb,
2574                 .off1   = td_var_offset(verify_cpumask),
2575                 .help   = "Set CPUs allowed for async verify threads",
2576                 .parent = "verify_async",
2577                 .hide   = 1,
2578                 .category = FIO_OPT_C_IO,
2579                 .group  = FIO_OPT_G_VERIFY,
2580         },
2581 #endif
2582         {
2583                 .name   = "experimental_verify",
2584                 .off1   = td_var_offset(experimental_verify),
2585                 .type   = FIO_OPT_BOOL,
2586                 .help   = "Enable experimental verification",
2587                 .parent = "verify",
2588                 .category = FIO_OPT_C_IO,
2589                 .group  = FIO_OPT_G_VERIFY,
2590         },
2591         {
2592                 .name   = "verify_state_load",
2593                 .lname  = "Load verify state",
2594                 .off1   = td_var_offset(verify_state),
2595                 .type   = FIO_OPT_BOOL,
2596                 .help   = "Load verify termination state",
2597                 .parent = "verify",
2598                 .category = FIO_OPT_C_IO,
2599                 .group  = FIO_OPT_G_VERIFY,
2600         },
2601         {
2602                 .name   = "verify_state_save",
2603                 .lname  = "Save verify state",
2604                 .off1   = td_var_offset(verify_state_save),
2605                 .type   = FIO_OPT_BOOL,
2606                 .def    = "1",
2607                 .help   = "Save verify state on termination",
2608                 .parent = "verify",
2609                 .category = FIO_OPT_C_IO,
2610                 .group  = FIO_OPT_G_VERIFY,
2611         },
2612 #ifdef FIO_HAVE_TRIM
2613         {
2614                 .name   = "trim_percentage",
2615                 .lname  = "Trim percentage",
2616                 .type   = FIO_OPT_INT,
2617                 .off1   = td_var_offset(trim_percentage),
2618                 .minval = 0,
2619                 .maxval = 100,
2620                 .help   = "Number of verify blocks to discard/trim",
2621                 .parent = "verify",
2622                 .def    = "0",
2623                 .interval = 1,
2624                 .hide   = 1,
2625                 .category = FIO_OPT_C_IO,
2626                 .group  = FIO_OPT_G_TRIM,
2627         },
2628         {
2629                 .name   = "trim_verify_zero",
2630                 .lname  = "Verify trim zero",
2631                 .type   = FIO_OPT_BOOL,
2632                 .help   = "Verify that trim/discarded blocks are returned as zeroes",
2633                 .off1   = td_var_offset(trim_zero),
2634                 .parent = "trim_percentage",
2635                 .hide   = 1,
2636                 .def    = "1",
2637                 .category = FIO_OPT_C_IO,
2638                 .group  = FIO_OPT_G_TRIM,
2639         },
2640         {
2641                 .name   = "trim_backlog",
2642                 .lname  = "Trim backlog",
2643                 .type   = FIO_OPT_STR_VAL,
2644                 .off1   = td_var_offset(trim_backlog),
2645                 .help   = "Trim after this number of blocks are written",
2646                 .parent = "trim_percentage",
2647                 .hide   = 1,
2648                 .interval = 1,
2649                 .category = FIO_OPT_C_IO,
2650                 .group  = FIO_OPT_G_TRIM,
2651         },
2652         {
2653                 .name   = "trim_backlog_batch",
2654                 .lname  = "Trim backlog batch",
2655                 .type   = FIO_OPT_INT,
2656                 .off1   = td_var_offset(trim_batch),
2657                 .help   = "Trim this number of IO blocks",
2658                 .parent = "trim_percentage",
2659                 .hide   = 1,
2660                 .interval = 1,
2661                 .category = FIO_OPT_C_IO,
2662                 .group  = FIO_OPT_G_TRIM,
2663         },
2664 #endif
2665         {
2666                 .name   = "write_iolog",
2667                 .lname  = "Write I/O log",
2668                 .type   = FIO_OPT_STR_STORE,
2669                 .off1   = td_var_offset(write_iolog_file),
2670                 .help   = "Store IO pattern to file",
2671                 .category = FIO_OPT_C_IO,
2672                 .group  = FIO_OPT_G_IOLOG,
2673         },
2674         {
2675                 .name   = "read_iolog",
2676                 .lname  = "Read I/O log",
2677                 .type   = FIO_OPT_STR_STORE,
2678                 .off1   = td_var_offset(read_iolog_file),
2679                 .help   = "Playback IO pattern from file",
2680                 .category = FIO_OPT_C_IO,
2681                 .group  = FIO_OPT_G_IOLOG,
2682         },
2683         {
2684                 .name   = "replay_no_stall",
2685                 .lname  = "Don't stall on replay",
2686                 .type   = FIO_OPT_BOOL,
2687                 .off1   = td_var_offset(no_stall),
2688                 .def    = "0",
2689                 .parent = "read_iolog",
2690                 .hide   = 1,
2691                 .help   = "Playback IO pattern file as fast as possible without stalls",
2692                 .category = FIO_OPT_C_IO,
2693                 .group  = FIO_OPT_G_IOLOG,
2694         },
2695         {
2696                 .name   = "replay_redirect",
2697                 .lname  = "Redirect device for replay",
2698                 .type   = FIO_OPT_STR_STORE,
2699                 .off1   = td_var_offset(replay_redirect),
2700                 .parent = "read_iolog",
2701                 .hide   = 1,
2702                 .help   = "Replay all I/O onto this device, regardless of trace device",
2703                 .category = FIO_OPT_C_IO,
2704                 .group  = FIO_OPT_G_IOLOG,
2705         },
2706         {
2707                 .name   = "replay_scale",
2708                 .lname  = "Replace offset scale factor",
2709                 .type   = FIO_OPT_INT,
2710                 .off1   = td_var_offset(replay_scale),
2711                 .parent = "read_iolog",
2712                 .def    = "1",
2713                 .help   = "Align offsets to this blocksize",
2714                 .category = FIO_OPT_C_IO,
2715                 .group  = FIO_OPT_G_IOLOG,
2716         },
2717         {
2718                 .name   = "replay_align",
2719                 .lname  = "Replace alignment",
2720                 .type   = FIO_OPT_INT,
2721                 .off1   = td_var_offset(replay_align),
2722                 .parent = "read_iolog",
2723                 .help   = "Scale offset down by this factor",
2724                 .category = FIO_OPT_C_IO,
2725                 .group  = FIO_OPT_G_IOLOG,
2726                 .pow2   = 1,
2727         },
2728         {
2729                 .name   = "exec_prerun",
2730                 .lname  = "Pre-execute runnable",
2731                 .type   = FIO_OPT_STR_STORE,
2732                 .off1   = td_var_offset(exec_prerun),
2733                 .help   = "Execute this file prior to running job",
2734                 .category = FIO_OPT_C_GENERAL,
2735                 .group  = FIO_OPT_G_INVALID,
2736         },
2737         {
2738                 .name   = "exec_postrun",
2739                 .lname  = "Post-execute runnable",
2740                 .type   = FIO_OPT_STR_STORE,
2741                 .off1   = td_var_offset(exec_postrun),
2742                 .help   = "Execute this file after running job",
2743                 .category = FIO_OPT_C_GENERAL,
2744                 .group  = FIO_OPT_G_INVALID,
2745         },
2746 #ifdef FIO_HAVE_IOSCHED_SWITCH
2747         {
2748                 .name   = "ioscheduler",
2749                 .lname  = "I/O scheduler",
2750                 .type   = FIO_OPT_STR_STORE,
2751                 .off1   = td_var_offset(ioscheduler),
2752                 .help   = "Use this IO scheduler on the backing device",
2753                 .category = FIO_OPT_C_FILE,
2754                 .group  = FIO_OPT_G_INVALID,
2755         },
2756 #endif
2757         {
2758                 .name   = "zonesize",
2759                 .lname  = "Zone size",
2760                 .type   = FIO_OPT_STR_VAL,
2761                 .off1   = td_var_offset(zone_size),
2762                 .help   = "Amount of data to read per zone",
2763                 .def    = "0",
2764                 .interval = 1024 * 1024,
2765                 .category = FIO_OPT_C_IO,
2766                 .group  = FIO_OPT_G_ZONE,
2767         },
2768         {
2769                 .name   = "zonerange",
2770                 .lname  = "Zone range",
2771                 .type   = FIO_OPT_STR_VAL,
2772                 .off1   = td_var_offset(zone_range),
2773                 .help   = "Give size of an IO zone",
2774                 .def    = "0",
2775                 .interval = 1024 * 1024,
2776                 .category = FIO_OPT_C_IO,
2777                 .group  = FIO_OPT_G_ZONE,
2778         },
2779         {
2780                 .name   = "zoneskip",
2781                 .lname  = "Zone skip",
2782                 .type   = FIO_OPT_STR_VAL,
2783                 .off1   = td_var_offset(zone_skip),
2784                 .help   = "Space between IO zones",
2785                 .def    = "0",
2786                 .interval = 1024 * 1024,
2787                 .category = FIO_OPT_C_IO,
2788                 .group  = FIO_OPT_G_ZONE,
2789         },
2790         {
2791                 .name   = "lockmem",
2792                 .lname  = "Lock memory",
2793                 .type   = FIO_OPT_STR_VAL,
2794                 .off1   = td_var_offset(lockmem),
2795                 .help   = "Lock down this amount of memory (per worker)",
2796                 .def    = "0",
2797                 .interval = 1024 * 1024,
2798                 .category = FIO_OPT_C_GENERAL,
2799                 .group  = FIO_OPT_G_INVALID,
2800         },
2801         {
2802                 .name   = "rwmixread",
2803                 .lname  = "Read/write mix read",
2804                 .type   = FIO_OPT_INT,
2805                 .cb     = str_rwmix_read_cb,
2806                 .off1   = td_var_offset(rwmix[DDIR_READ]),
2807                 .maxval = 100,
2808                 .help   = "Percentage of mixed workload that is reads",
2809                 .def    = "50",
2810                 .interval = 5,
2811                 .inverse = "rwmixwrite",
2812                 .category = FIO_OPT_C_IO,
2813                 .group  = FIO_OPT_G_RWMIX,
2814         },
2815         {
2816                 .name   = "rwmixwrite",
2817                 .lname  = "Read/write mix write",
2818                 .type   = FIO_OPT_INT,
2819                 .cb     = str_rwmix_write_cb,
2820                 .off1   = td_var_offset(rwmix[DDIR_WRITE]),
2821                 .maxval = 100,
2822                 .help   = "Percentage of mixed workload that is writes",
2823                 .def    = "50",
2824                 .interval = 5,
2825                 .inverse = "rwmixread",
2826                 .category = FIO_OPT_C_IO,
2827                 .group  = FIO_OPT_G_RWMIX,
2828         },
2829         {
2830                 .name   = "rwmixcycle",
2831                 .lname  = "Read/write mix cycle",
2832                 .type   = FIO_OPT_DEPRECATED,
2833                 .category = FIO_OPT_C_IO,
2834                 .group  = FIO_OPT_G_RWMIX,
2835         },
2836         {
2837                 .name   = "nice",
2838                 .lname  = "Nice",
2839                 .type   = FIO_OPT_INT,
2840                 .off1   = td_var_offset(nice),
2841                 .help   = "Set job CPU nice value",
2842                 .minval = -19,
2843                 .maxval = 20,
2844                 .def    = "0",
2845                 .interval = 1,
2846                 .category = FIO_OPT_C_GENERAL,
2847                 .group  = FIO_OPT_G_CRED,
2848         },
2849 #ifdef FIO_HAVE_IOPRIO
2850         {
2851                 .name   = "prio",
2852                 .lname  = "I/O nice priority",
2853                 .type   = FIO_OPT_INT,
2854                 .off1   = td_var_offset(ioprio),
2855                 .help   = "Set job IO priority value",
2856                 .minval = 0,
2857                 .maxval = 7,
2858                 .interval = 1,
2859                 .category = FIO_OPT_C_GENERAL,
2860                 .group  = FIO_OPT_G_CRED,
2861         },
2862         {
2863                 .name   = "prioclass",
2864                 .lname  = "I/O nice priority class",
2865                 .type   = FIO_OPT_INT,
2866                 .off1   = td_var_offset(ioprio_class),
2867                 .help   = "Set job IO priority class",
2868                 .minval = 0,
2869                 .maxval = 3,
2870                 .interval = 1,
2871                 .category = FIO_OPT_C_GENERAL,
2872                 .group  = FIO_OPT_G_CRED,
2873         },
2874 #endif
2875         {
2876                 .name   = "thinktime",
2877                 .lname  = "Thinktime",
2878                 .type   = FIO_OPT_INT,
2879                 .off1   = td_var_offset(thinktime),
2880                 .help   = "Idle time between IO buffers (usec)",
2881                 .def    = "0",
2882                 .is_time = 1,
2883                 .category = FIO_OPT_C_IO,
2884                 .group  = FIO_OPT_G_THINKTIME,
2885         },
2886         {
2887                 .name   = "thinktime_spin",
2888                 .lname  = "Thinktime spin",
2889                 .type   = FIO_OPT_INT,
2890                 .off1   = td_var_offset(thinktime_spin),
2891                 .help   = "Start think time by spinning this amount (usec)",
2892                 .def    = "0",
2893                 .is_time = 1,
2894                 .parent = "thinktime",
2895                 .hide   = 1,
2896                 .category = FIO_OPT_C_IO,
2897                 .group  = FIO_OPT_G_THINKTIME,
2898         },
2899         {
2900                 .name   = "thinktime_blocks",
2901                 .lname  = "Thinktime blocks",
2902                 .type   = FIO_OPT_INT,
2903                 .off1   = td_var_offset(thinktime_blocks),
2904                 .help   = "IO buffer period between 'thinktime'",
2905                 .def    = "1",
2906                 .parent = "thinktime",
2907                 .hide   = 1,
2908                 .category = FIO_OPT_C_IO,
2909                 .group  = FIO_OPT_G_THINKTIME,
2910         },
2911         {
2912                 .name   = "rate",
2913                 .lname  = "I/O rate",
2914                 .type   = FIO_OPT_INT,
2915                 .off1   = td_var_offset(rate[DDIR_READ]),
2916                 .off2   = td_var_offset(rate[DDIR_WRITE]),
2917                 .off3   = td_var_offset(rate[DDIR_TRIM]),
2918                 .help   = "Set bandwidth rate",
2919                 .category = FIO_OPT_C_IO,
2920                 .group  = FIO_OPT_G_RATE,
2921         },
2922         {
2923                 .name   = "rate_min",
2924                 .alias  = "ratemin",
2925                 .lname  = "I/O min rate",
2926                 .type   = FIO_OPT_INT,
2927                 .off1   = td_var_offset(ratemin[DDIR_READ]),
2928                 .off2   = td_var_offset(ratemin[DDIR_WRITE]),
2929                 .off3   = td_var_offset(ratemin[DDIR_TRIM]),
2930                 .help   = "Job must meet this rate or it will be shutdown",
2931                 .parent = "rate",
2932                 .hide   = 1,
2933                 .category = FIO_OPT_C_IO,
2934                 .group  = FIO_OPT_G_RATE,
2935         },
2936         {
2937                 .name   = "rate_iops",
2938                 .lname  = "I/O rate IOPS",
2939                 .type   = FIO_OPT_INT,
2940                 .off1   = td_var_offset(rate_iops[DDIR_READ]),
2941                 .off2   = td_var_offset(rate_iops[DDIR_WRITE]),
2942                 .off3   = td_var_offset(rate_iops[DDIR_TRIM]),
2943                 .help   = "Limit IO used to this number of IO operations/sec",
2944                 .hide   = 1,
2945                 .category = FIO_OPT_C_IO,
2946                 .group  = FIO_OPT_G_RATE,
2947         },
2948         {
2949                 .name   = "rate_iops_min",
2950                 .lname  = "I/O min rate IOPS",
2951                 .type   = FIO_OPT_INT,
2952                 .off1   = td_var_offset(rate_iops_min[DDIR_READ]),
2953                 .off2   = td_var_offset(rate_iops_min[DDIR_WRITE]),
2954                 .off3   = td_var_offset(rate_iops_min[DDIR_TRIM]),
2955                 .help   = "Job must meet this rate or it will be shut down",
2956                 .parent = "rate_iops",
2957                 .hide   = 1,
2958                 .category = FIO_OPT_C_IO,
2959                 .group  = FIO_OPT_G_RATE,
2960         },
2961         {
2962                 .name   = "rate_process",
2963                 .lname  = "Rate Process",
2964                 .type   = FIO_OPT_STR,
2965                 .off1   = td_var_offset(rate_process),
2966                 .help   = "What process controls how rated IO is managed",
2967                 .def    = "linear",
2968                 .category = FIO_OPT_C_IO,
2969                 .group  = FIO_OPT_G_RATE,
2970                 .posval = {
2971                           { .ival = "linear",
2972                             .oval = RATE_PROCESS_LINEAR,
2973                             .help = "Linear rate of IO",
2974                           },
2975                           {
2976                             .ival = "poisson",
2977                             .oval = RATE_PROCESS_POISSON,
2978                             .help = "Rate follows Poisson process",
2979                           },
2980                 },
2981                 .parent = "rate",
2982         },
2983         {
2984                 .name   = "rate_cycle",
2985                 .alias  = "ratecycle",
2986                 .lname  = "I/O rate cycle",
2987                 .type   = FIO_OPT_INT,
2988                 .off1   = td_var_offset(ratecycle),
2989                 .help   = "Window average for rate limits (msec)",
2990                 .def    = "1000",
2991                 .parent = "rate",
2992                 .hide   = 1,
2993                 .category = FIO_OPT_C_IO,
2994                 .group  = FIO_OPT_G_RATE,
2995         },
2996         {
2997                 .name   = "max_latency",
2998                 .type   = FIO_OPT_INT,
2999                 .off1   = td_var_offset(max_latency),
3000                 .help   = "Maximum tolerated IO latency (usec)",
3001                 .is_time = 1,
3002                 .category = FIO_OPT_C_IO,
3003                 .group = FIO_OPT_G_LATPROF,
3004         },
3005         {
3006                 .name   = "latency_target",
3007                 .lname  = "Latency Target (usec)",
3008                 .type   = FIO_OPT_STR_VAL_TIME,
3009                 .off1   = td_var_offset(latency_target),
3010                 .help   = "Ramp to max queue depth supporting this latency",
3011                 .is_time = 1,
3012                 .category = FIO_OPT_C_IO,
3013                 .group  = FIO_OPT_G_LATPROF,
3014         },
3015         {
3016                 .name   = "latency_window",
3017                 .lname  = "Latency Window (usec)",
3018                 .type   = FIO_OPT_STR_VAL_TIME,
3019                 .off1   = td_var_offset(latency_window),
3020                 .help   = "Time to sustain latency_target",
3021                 .is_time = 1,
3022                 .category = FIO_OPT_C_IO,
3023                 .group  = FIO_OPT_G_LATPROF,
3024         },
3025         {
3026                 .name   = "latency_percentile",
3027                 .lname  = "Latency Percentile",
3028                 .type   = FIO_OPT_FLOAT_LIST,
3029                 .off1   = td_var_offset(latency_percentile),
3030                 .help   = "Percentile of IOs must be below latency_target",
3031                 .def    = "100",
3032                 .maxlen = 1,
3033                 .minfp  = 0.0,
3034                 .maxfp  = 100.0,
3035                 .category = FIO_OPT_C_IO,
3036                 .group  = FIO_OPT_G_LATPROF,
3037         },
3038         {
3039                 .name   = "invalidate",
3040                 .lname  = "Cache invalidate",
3041                 .type   = FIO_OPT_BOOL,
3042                 .off1   = td_var_offset(invalidate_cache),
3043                 .help   = "Invalidate buffer/page cache prior to running job",
3044                 .def    = "1",
3045                 .category = FIO_OPT_C_IO,
3046                 .group  = FIO_OPT_G_IO_TYPE,
3047         },
3048         {
3049                 .name   = "sync",
3050                 .lname  = "Synchronous I/O",
3051                 .type   = FIO_OPT_BOOL,
3052                 .off1   = td_var_offset(sync_io),
3053                 .help   = "Use O_SYNC for buffered writes",
3054                 .def    = "0",
3055                 .parent = "buffered",
3056                 .hide   = 1,
3057                 .category = FIO_OPT_C_IO,
3058                 .group  = FIO_OPT_G_IO_TYPE,
3059         },
3060         {
3061                 .name   = "create_serialize",
3062                 .lname  = "Create serialize",
3063                 .type   = FIO_OPT_BOOL,
3064                 .off1   = td_var_offset(create_serialize),
3065                 .help   = "Serialize creating of job files",
3066                 .def    = "1",
3067                 .category = FIO_OPT_C_FILE,
3068                 .group  = FIO_OPT_G_INVALID,
3069         },
3070         {
3071                 .name   = "create_fsync",
3072                 .lname  = "Create fsync",
3073                 .type   = FIO_OPT_BOOL,
3074                 .off1   = td_var_offset(create_fsync),
3075                 .help   = "fsync file after creation",
3076                 .def    = "1",
3077                 .category = FIO_OPT_C_FILE,
3078                 .group  = FIO_OPT_G_INVALID,
3079         },
3080         {
3081                 .name   = "create_on_open",
3082                 .lname  = "Create on open",
3083                 .type   = FIO_OPT_BOOL,
3084                 .off1   = td_var_offset(create_on_open),
3085                 .help   = "Create files when they are opened for IO",
3086                 .def    = "0",
3087                 .category = FIO_OPT_C_FILE,
3088                 .group  = FIO_OPT_G_INVALID,
3089         },
3090         {
3091                 .name   = "create_only",
3092                 .type   = FIO_OPT_BOOL,
3093                 .off1   = td_var_offset(create_only),
3094                 .help   = "Only perform file creation phase",
3095                 .category = FIO_OPT_C_FILE,
3096                 .def    = "0",
3097         },
3098         {
3099                 .name   = "allow_file_create",
3100                 .lname  = "Allow file create",
3101                 .type   = FIO_OPT_BOOL,
3102                 .off1   = td_var_offset(allow_create),
3103                 .help   = "Permit fio to create files, if they don't exist",
3104                 .def    = "1",
3105                 .category = FIO_OPT_C_FILE,
3106                 .group  = FIO_OPT_G_FILENAME,
3107         },
3108         {
3109                 .name   = "allow_mounted_write",
3110                 .lname  = "Allow mounted write",
3111                 .type   = FIO_OPT_BOOL,
3112                 .off1   = td_var_offset(allow_mounted_write),
3113                 .help   = "Allow writes to a mounted partition",
3114                 .def    = "0",
3115                 .category = FIO_OPT_C_FILE,
3116                 .group  = FIO_OPT_G_FILENAME,
3117         },
3118         {
3119                 .name   = "pre_read",
3120                 .lname  = "Pre-read files",
3121                 .type   = FIO_OPT_BOOL,
3122                 .off1   = td_var_offset(pre_read),
3123                 .help   = "Pre-read files before starting official testing",
3124                 .def    = "0",
3125                 .category = FIO_OPT_C_FILE,
3126                 .group  = FIO_OPT_G_INVALID,
3127         },
3128 #ifdef FIO_HAVE_CPU_AFFINITY
3129         {
3130                 .name   = "cpumask",
3131                 .lname  = "CPU mask",
3132                 .type   = FIO_OPT_INT,
3133                 .cb     = str_cpumask_cb,
3134                 .off1   = td_var_offset(cpumask),
3135                 .help   = "CPU affinity mask",
3136                 .category = FIO_OPT_C_GENERAL,
3137                 .group  = FIO_OPT_G_CRED,
3138         },
3139         {
3140                 .name   = "cpus_allowed",
3141                 .lname  = "CPUs allowed",
3142                 .type   = FIO_OPT_STR,
3143                 .cb     = str_cpus_allowed_cb,
3144                 .off1   = td_var_offset(cpumask),
3145                 .help   = "Set CPUs allowed",
3146                 .category = FIO_OPT_C_GENERAL,
3147                 .group  = FIO_OPT_G_CRED,
3148         },
3149         {
3150                 .name   = "cpus_allowed_policy",
3151                 .lname  = "CPUs allowed distribution policy",
3152                 .type   = FIO_OPT_STR,
3153                 .off1   = td_var_offset(cpus_allowed_policy),
3154                 .help   = "Distribution policy for cpus_allowed",
3155                 .parent = "cpus_allowed",
3156                 .prio   = 1,
3157                 .posval = {
3158                           { .ival = "shared",
3159                             .oval = FIO_CPUS_SHARED,
3160                             .help = "Mask shared between threads",
3161                           },
3162                           { .ival = "split",
3163                             .oval = FIO_CPUS_SPLIT,
3164                             .help = "Mask split between threads",
3165                           },
3166                 },
3167                 .category = FIO_OPT_C_GENERAL,
3168                 .group  = FIO_OPT_G_CRED,
3169         },
3170 #endif
3171 #ifdef CONFIG_LIBNUMA
3172         {
3173                 .name   = "numa_cpu_nodes",
3174                 .type   = FIO_OPT_STR,
3175                 .cb     = str_numa_cpunodes_cb,
3176                 .off1   = td_var_offset(numa_cpunodes),
3177                 .help   = "NUMA CPU nodes bind",
3178                 .category = FIO_OPT_C_GENERAL,
3179                 .group  = FIO_OPT_G_INVALID,
3180         },
3181         {
3182                 .name   = "numa_mem_policy",
3183                 .type   = FIO_OPT_STR,
3184                 .cb     = str_numa_mpol_cb,
3185                 .off1   = td_var_offset(numa_memnodes),
3186                 .help   = "NUMA memory policy setup",
3187                 .category = FIO_OPT_C_GENERAL,
3188                 .group  = FIO_OPT_G_INVALID,
3189         },
3190 #endif
3191         {
3192                 .name   = "end_fsync",
3193                 .lname  = "End fsync",
3194                 .type   = FIO_OPT_BOOL,
3195                 .off1   = td_var_offset(end_fsync),
3196                 .help   = "Include fsync at the end of job",
3197                 .def    = "0",
3198                 .category = FIO_OPT_C_FILE,
3199                 .group  = FIO_OPT_G_INVALID,
3200         },
3201         {
3202                 .name   = "fsync_on_close",
3203                 .lname  = "Fsync on close",
3204                 .type   = FIO_OPT_BOOL,
3205                 .off1   = td_var_offset(fsync_on_close),
3206                 .help   = "fsync files on close",
3207                 .def    = "0",
3208                 .category = FIO_OPT_C_FILE,
3209                 .group  = FIO_OPT_G_INVALID,
3210         },
3211         {
3212                 .name   = "unlink",
3213                 .lname  = "Unlink file",
3214                 .type   = FIO_OPT_BOOL,
3215                 .off1   = td_var_offset(unlink),
3216                 .help   = "Unlink created files after job has completed",
3217                 .def    = "0",
3218                 .category = FIO_OPT_C_FILE,
3219                 .group  = FIO_OPT_G_INVALID,
3220         },
3221         {
3222                 .name   = "exitall",
3223                 .lname  = "Exit-all on terminate",
3224                 .type   = FIO_OPT_STR_SET,
3225                 .cb     = str_exitall_cb,
3226                 .help   = "Terminate all jobs when one exits",
3227                 .category = FIO_OPT_C_GENERAL,
3228                 .group  = FIO_OPT_G_PROCESS,
3229         },
3230         {
3231                 .name   = "exitall_on_error",
3232                 .lname  = "Exit-all on terminate in error",
3233                 .type   = FIO_OPT_BOOL,
3234                 .off1   = td_var_offset(unlink),
3235                 .help   = "Terminate all jobs when one exits in error",
3236                 .category = FIO_OPT_C_GENERAL,
3237                 .group  = FIO_OPT_G_PROCESS,
3238         },
3239         {
3240                 .name   = "stonewall",
3241                 .lname  = "Wait for previous",
3242                 .alias  = "wait_for_previous",
3243                 .type   = FIO_OPT_STR_SET,
3244                 .off1   = td_var_offset(stonewall),
3245                 .help   = "Insert a hard barrier between this job and previous",
3246                 .category = FIO_OPT_C_GENERAL,
3247                 .group  = FIO_OPT_G_PROCESS,
3248         },
3249         {
3250                 .name   = "new_group",
3251                 .lname  = "New group",
3252                 .type   = FIO_OPT_STR_SET,
3253                 .off1   = td_var_offset(new_group),
3254                 .help   = "Mark the start of a new group (for reporting)",
3255                 .category = FIO_OPT_C_GENERAL,
3256                 .group  = FIO_OPT_G_PROCESS,
3257         },
3258         {
3259                 .name   = "thread",
3260                 .lname  = "Thread",
3261                 .type   = FIO_OPT_STR_SET,
3262                 .off1   = td_var_offset(use_thread),
3263                 .help   = "Use threads instead of processes",
3264 #ifdef CONFIG_NO_SHM
3265                 .def    = "1",
3266                 .no_warn_def = 1,
3267 #endif
3268                 .category = FIO_OPT_C_GENERAL,
3269                 .group  = FIO_OPT_G_PROCESS,
3270         },
3271         {
3272                 .name   = "per_job_logs",
3273                 .type   = FIO_OPT_BOOL,
3274                 .off1   = td_var_offset(per_job_logs),
3275                 .help   = "Include job number in generated log files or not",
3276                 .def    = "1",
3277                 .category = FIO_OPT_C_LOG,
3278                 .group  = FIO_OPT_G_INVALID,
3279         },
3280         {
3281                 .name   = "write_bw_log",
3282                 .lname  = "Write bandwidth log",
3283                 .type   = FIO_OPT_STR_STORE,
3284                 .off1   = td_var_offset(bw_log_file),
3285                 .help   = "Write log of bandwidth during run",
3286                 .category = FIO_OPT_C_LOG,
3287                 .group  = FIO_OPT_G_INVALID,
3288         },
3289         {
3290                 .name   = "write_lat_log",
3291                 .lname  = "Write latency log",
3292                 .type   = FIO_OPT_STR_STORE,
3293                 .off1   = td_var_offset(lat_log_file),
3294                 .help   = "Write log of latency during run",
3295                 .category = FIO_OPT_C_LOG,
3296                 .group  = FIO_OPT_G_INVALID,
3297         },
3298         {
3299                 .name   = "write_iops_log",
3300                 .lname  = "Write IOPS log",
3301                 .type   = FIO_OPT_STR_STORE,
3302                 .off1   = td_var_offset(iops_log_file),
3303                 .help   = "Write log of IOPS during run",
3304                 .category = FIO_OPT_C_LOG,
3305                 .group  = FIO_OPT_G_INVALID,
3306         },
3307         {
3308                 .name   = "log_avg_msec",
3309                 .lname  = "Log averaging (msec)",
3310                 .type   = FIO_OPT_INT,
3311                 .off1   = td_var_offset(log_avg_msec),
3312                 .help   = "Average bw/iops/lat logs over this period of time",
3313                 .def    = "0",
3314                 .category = FIO_OPT_C_LOG,
3315                 .group  = FIO_OPT_G_INVALID,
3316         },
3317         {
3318                 .name   = "log_max_value",
3319                 .lname  = "Log maximum instead of average",
3320                 .type   = FIO_OPT_BOOL,
3321                 .off1   = td_var_offset(log_max),
3322                 .help   = "Log max sample in a window instead of average",
3323                 .def    = "0",
3324                 .category = FIO_OPT_C_LOG,
3325                 .group  = FIO_OPT_G_INVALID,
3326         },
3327         {
3328                 .name   = "log_offset",
3329                 .lname  = "Log offset of IO",
3330                 .type   = FIO_OPT_BOOL,
3331                 .off1   = td_var_offset(log_offset),
3332                 .help   = "Include offset of IO for each log entry",
3333                 .def    = "0",
3334                 .category = FIO_OPT_C_LOG,
3335                 .group  = FIO_OPT_G_INVALID,
3336         },
3337 #ifdef CONFIG_ZLIB
3338         {
3339                 .name   = "log_compression",
3340                 .lname  = "Log compression",
3341                 .type   = FIO_OPT_INT,
3342                 .off1   = td_var_offset(log_gz),
3343                 .help   = "Log in compressed chunks of this size",
3344                 .minval = 1024ULL,
3345                 .maxval = 512 * 1024 * 1024ULL,
3346                 .category = FIO_OPT_C_LOG,
3347                 .group  = FIO_OPT_G_INVALID,
3348         },
3349 #ifdef FIO_HAVE_CPU_AFFINITY
3350         {
3351                 .name   = "log_compression_cpus",
3352                 .lname  = "Log Compression CPUs",
3353                 .type   = FIO_OPT_STR,
3354                 .cb     = str_log_cpus_allowed_cb,
3355                 .off1   = td_var_offset(log_gz_cpumask),
3356                 .parent = "log_compression",
3357                 .help   = "Limit log compression to these CPUs",
3358                 .category = FIO_OPT_C_LOG,
3359                 .group  = FIO_OPT_G_INVALID,
3360         },
3361 #endif
3362         {
3363                 .name   = "log_store_compressed",
3364                 .lname  = "Log store compressed",
3365                 .type   = FIO_OPT_BOOL,
3366                 .off1   = td_var_offset(log_gz_store),
3367                 .help   = "Store logs in a compressed format",
3368                 .category = FIO_OPT_C_LOG,
3369                 .group  = FIO_OPT_G_INVALID,
3370         },
3371 #endif
3372         {
3373                 .name   = "block_error_percentiles",
3374                 .lname  = "Block error percentiles",
3375                 .type   = FIO_OPT_BOOL,
3376                 .off1   = td_var_offset(block_error_hist),
3377                 .help   = "Record trim block errors and make a histogram",
3378                 .def    = "0",
3379                 .category = FIO_OPT_C_LOG,
3380                 .group  = FIO_OPT_G_INVALID,
3381         },
3382         {
3383                 .name   = "bwavgtime",
3384                 .lname  = "Bandwidth average time",
3385                 .type   = FIO_OPT_INT,
3386                 .off1   = td_var_offset(bw_avg_time),
3387                 .help   = "Time window over which to calculate bandwidth"
3388                           " (msec)",
3389                 .def    = "500",
3390                 .parent = "write_bw_log",
3391                 .hide   = 1,
3392                 .interval = 100,
3393                 .category = FIO_OPT_C_LOG,
3394                 .group  = FIO_OPT_G_INVALID,
3395         },
3396         {
3397                 .name   = "iopsavgtime",
3398                 .lname  = "IOPS average time",
3399                 .type   = FIO_OPT_INT,
3400                 .off1   = td_var_offset(iops_avg_time),
3401                 .help   = "Time window over which to calculate IOPS (msec)",
3402                 .def    = "500",
3403                 .parent = "write_iops_log",
3404                 .hide   = 1,
3405                 .interval = 100,
3406                 .category = FIO_OPT_C_LOG,
3407                 .group  = FIO_OPT_G_INVALID,
3408         },
3409         {
3410                 .name   = "group_reporting",
3411                 .lname  = "Group reporting",
3412                 .type   = FIO_OPT_STR_SET,
3413                 .off1   = td_var_offset(group_reporting),
3414                 .help   = "Do reporting on a per-group basis",
3415                 .category = FIO_OPT_C_STAT,
3416                 .group  = FIO_OPT_G_INVALID,
3417         },
3418         {
3419                 .name   = "zero_buffers",
3420                 .lname  = "Zero I/O buffers",
3421                 .type   = FIO_OPT_STR_SET,
3422                 .off1   = td_var_offset(zero_buffers),
3423                 .help   = "Init IO buffers to all zeroes",
3424                 .category = FIO_OPT_C_IO,
3425                 .group  = FIO_OPT_G_IO_BUF,
3426         },
3427         {
3428                 .name   = "refill_buffers",
3429                 .lname  = "Refill I/O buffers",
3430                 .type   = FIO_OPT_STR_SET,
3431                 .off1   = td_var_offset(refill_buffers),
3432                 .help   = "Refill IO buffers on every IO submit",
3433                 .category = FIO_OPT_C_IO,
3434                 .group  = FIO_OPT_G_IO_BUF,
3435         },
3436         {
3437                 .name   = "scramble_buffers",
3438                 .lname  = "Scramble I/O buffers",
3439                 .type   = FIO_OPT_BOOL,
3440                 .off1   = td_var_offset(scramble_buffers),
3441                 .help   = "Slightly scramble buffers on every IO submit",
3442                 .def    = "1",
3443                 .category = FIO_OPT_C_IO,
3444                 .group  = FIO_OPT_G_IO_BUF,
3445         },
3446         {
3447                 .name   = "buffer_pattern",
3448                 .lname  = "Buffer pattern",
3449                 .type   = FIO_OPT_STR,
3450                 .cb     = str_buffer_pattern_cb,
3451                 .off1   = td_var_offset(buffer_pattern),
3452                 .help   = "Fill pattern for IO buffers",
3453                 .category = FIO_OPT_C_IO,
3454                 .group  = FIO_OPT_G_IO_BUF,
3455         },
3456         {
3457                 .name   = "buffer_compress_percentage",
3458                 .lname  = "Buffer compression percentage",
3459                 .type   = FIO_OPT_INT,
3460                 .cb     = str_buffer_compress_cb,
3461                 .off1   = td_var_offset(compress_percentage),
3462                 .maxval = 100,
3463                 .minval = 0,
3464                 .help   = "How compressible the buffer is (approximately)",
3465                 .interval = 5,
3466                 .category = FIO_OPT_C_IO,
3467                 .group  = FIO_OPT_G_IO_BUF,
3468         },
3469         {
3470                 .name   = "buffer_compress_chunk",
3471                 .lname  = "Buffer compression chunk size",
3472                 .type   = FIO_OPT_INT,
3473                 .off1   = td_var_offset(compress_chunk),
3474                 .parent = "buffer_compress_percentage",
3475                 .hide   = 1,
3476                 .help   = "Size of compressible region in buffer",
3477                 .interval = 256,
3478                 .category = FIO_OPT_C_IO,
3479                 .group  = FIO_OPT_G_IO_BUF,
3480         },
3481         {
3482                 .name   = "dedupe_percentage",
3483                 .lname  = "Dedupe percentage",
3484                 .type   = FIO_OPT_INT,
3485                 .cb     = str_dedupe_cb,
3486                 .off1   = td_var_offset(dedupe_percentage),
3487                 .maxval = 100,
3488                 .minval = 0,
3489                 .help   = "Percentage of buffers that are dedupable",
3490                 .interval = 1,
3491                 .category = FIO_OPT_C_IO,
3492                 .group  = FIO_OPT_G_IO_BUF,
3493         },
3494         {
3495                 .name   = "clat_percentiles",
3496                 .lname  = "Completion latency percentiles",
3497                 .type   = FIO_OPT_BOOL,
3498                 .off1   = td_var_offset(clat_percentiles),
3499                 .help   = "Enable the reporting of completion latency percentiles",
3500                 .def    = "1",
3501                 .category = FIO_OPT_C_STAT,
3502                 .group  = FIO_OPT_G_INVALID,
3503         },
3504         {
3505                 .name   = "percentile_list",
3506                 .lname  = "Percentile list",
3507                 .type   = FIO_OPT_FLOAT_LIST,
3508                 .off1   = td_var_offset(percentile_list),
3509                 .off2   = td_var_offset(percentile_precision),
3510                 .help   = "Specify a custom list of percentiles to report for "
3511                           "completion latency and block errors",
3512                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3513                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3514                 .minfp  = 0.0,
3515                 .maxfp  = 100.0,
3516                 .category = FIO_OPT_C_STAT,
3517                 .group  = FIO_OPT_G_INVALID,
3518         },
3519
3520 #ifdef FIO_HAVE_DISK_UTIL
3521         {
3522                 .name   = "disk_util",
3523                 .lname  = "Disk utilization",
3524                 .type   = FIO_OPT_BOOL,
3525                 .off1   = td_var_offset(do_disk_util),
3526                 .help   = "Log disk utilization statistics",
3527                 .def    = "1",
3528                 .category = FIO_OPT_C_STAT,
3529                 .group  = FIO_OPT_G_INVALID,
3530         },
3531 #endif
3532         {
3533                 .name   = "gtod_reduce",
3534                 .lname  = "Reduce gettimeofday() calls",
3535                 .type   = FIO_OPT_BOOL,
3536                 .help   = "Greatly reduce number of gettimeofday() calls",
3537                 .cb     = str_gtod_reduce_cb,
3538                 .def    = "0",
3539                 .hide_on_set = 1,
3540                 .category = FIO_OPT_C_STAT,
3541                 .group  = FIO_OPT_G_INVALID,
3542         },
3543         {
3544                 .name   = "disable_lat",
3545                 .lname  = "Disable all latency stats",
3546                 .type   = FIO_OPT_BOOL,
3547                 .off1   = td_var_offset(disable_lat),
3548                 .help   = "Disable latency numbers",
3549                 .parent = "gtod_reduce",
3550                 .hide   = 1,
3551                 .def    = "0",
3552                 .category = FIO_OPT_C_STAT,
3553                 .group  = FIO_OPT_G_INVALID,
3554         },
3555         {
3556                 .name   = "disable_clat",
3557                 .lname  = "Disable completion latency stats",
3558                 .type   = FIO_OPT_BOOL,
3559                 .off1   = td_var_offset(disable_clat),
3560                 .help   = "Disable completion latency numbers",
3561                 .parent = "gtod_reduce",
3562                 .hide   = 1,
3563                 .def    = "0",
3564                 .category = FIO_OPT_C_STAT,
3565                 .group  = FIO_OPT_G_INVALID,
3566         },
3567         {
3568                 .name   = "disable_slat",
3569                 .lname  = "Disable submission latency stats",
3570                 .type   = FIO_OPT_BOOL,
3571                 .off1   = td_var_offset(disable_slat),
3572                 .help   = "Disable submission latency numbers",
3573                 .parent = "gtod_reduce",
3574                 .hide   = 1,
3575                 .def    = "0",
3576                 .category = FIO_OPT_C_STAT,
3577                 .group  = FIO_OPT_G_INVALID,
3578         },
3579         {
3580                 .name   = "disable_bw_measurement",
3581                 .lname  = "Disable bandwidth stats",
3582                 .type   = FIO_OPT_BOOL,
3583                 .off1   = td_var_offset(disable_bw),
3584                 .help   = "Disable bandwidth logging",
3585                 .parent = "gtod_reduce",
3586                 .hide   = 1,
3587                 .def    = "0",
3588                 .category = FIO_OPT_C_STAT,
3589                 .group  = FIO_OPT_G_INVALID,
3590         },
3591         {
3592                 .name   = "gtod_cpu",
3593                 .lname  = "Dedicated gettimeofday() CPU",
3594                 .type   = FIO_OPT_INT,
3595                 .off1   = td_var_offset(gtod_cpu),
3596                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
3597                 .verify = gtod_cpu_verify,
3598                 .category = FIO_OPT_C_GENERAL,
3599                 .group  = FIO_OPT_G_CLOCK,
3600         },
3601         {
3602                 .name   = "unified_rw_reporting",
3603                 .type   = FIO_OPT_BOOL,
3604                 .off1   = td_var_offset(unified_rw_rep),
3605                 .help   = "Unify reporting across data direction",
3606                 .def    = "0",
3607                 .category = FIO_OPT_C_GENERAL,
3608                 .group  = FIO_OPT_G_INVALID,
3609         },
3610         {
3611                 .name   = "continue_on_error",
3612                 .lname  = "Continue on error",
3613                 .type   = FIO_OPT_STR,
3614                 .off1   = td_var_offset(continue_on_error),
3615                 .help   = "Continue on non-fatal errors during IO",
3616                 .def    = "none",
3617                 .category = FIO_OPT_C_GENERAL,
3618                 .group  = FIO_OPT_G_ERR,
3619                 .posval = {
3620                           { .ival = "none",
3621                             .oval = ERROR_TYPE_NONE,
3622                             .help = "Exit when an error is encountered",
3623                           },
3624                           { .ival = "read",
3625                             .oval = ERROR_TYPE_READ,
3626                             .help = "Continue on read errors only",
3627                           },
3628                           { .ival = "write",
3629                             .oval = ERROR_TYPE_WRITE,
3630                             .help = "Continue on write errors only",
3631                           },
3632                           { .ival = "io",
3633                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3634                             .help = "Continue on any IO errors",
3635                           },
3636                           { .ival = "verify",
3637                             .oval = ERROR_TYPE_VERIFY,
3638                             .help = "Continue on verify errors only",
3639                           },
3640                           { .ival = "all",
3641                             .oval = ERROR_TYPE_ANY,
3642                             .help = "Continue on all io and verify errors",
3643                           },
3644                           { .ival = "0",
3645                             .oval = ERROR_TYPE_NONE,
3646                             .help = "Alias for 'none'",
3647                           },
3648                           { .ival = "1",
3649                             .oval = ERROR_TYPE_ANY,
3650                             .help = "Alias for 'all'",
3651                           },
3652                 },
3653         },
3654         {
3655                 .name   = "ignore_error",
3656                 .type   = FIO_OPT_STR,
3657                 .cb     = str_ignore_error_cb,
3658                 .off1   = td_var_offset(ignore_error_nr),
3659                 .help   = "Set a specific list of errors to ignore",
3660                 .parent = "rw",
3661                 .category = FIO_OPT_C_GENERAL,
3662                 .group  = FIO_OPT_G_ERR,
3663         },
3664         {
3665                 .name   = "error_dump",
3666                 .type   = FIO_OPT_BOOL,
3667                 .off1   = td_var_offset(error_dump),
3668                 .def    = "0",
3669                 .help   = "Dump info on each error",
3670                 .category = FIO_OPT_C_GENERAL,
3671                 .group  = FIO_OPT_G_ERR,
3672         },
3673         {
3674                 .name   = "profile",
3675                 .lname  = "Profile",
3676                 .type   = FIO_OPT_STR_STORE,
3677                 .off1   = td_var_offset(profile),
3678                 .help   = "Select a specific builtin performance test",
3679                 .category = FIO_OPT_C_PROFILE,
3680                 .group  = FIO_OPT_G_INVALID,
3681         },
3682         {
3683                 .name   = "cgroup",
3684                 .lname  = "Cgroup",
3685                 .type   = FIO_OPT_STR_STORE,
3686                 .off1   = td_var_offset(cgroup),
3687                 .help   = "Add job to cgroup of this name",
3688                 .category = FIO_OPT_C_GENERAL,
3689                 .group  = FIO_OPT_G_CGROUP,
3690         },
3691         {
3692                 .name   = "cgroup_nodelete",
3693                 .lname  = "Cgroup no-delete",
3694                 .type   = FIO_OPT_BOOL,
3695                 .off1   = td_var_offset(cgroup_nodelete),
3696                 .help   = "Do not delete cgroups after job completion",
3697                 .def    = "0",
3698                 .parent = "cgroup",
3699                 .category = FIO_OPT_C_GENERAL,
3700                 .group  = FIO_OPT_G_CGROUP,
3701         },
3702         {
3703                 .name   = "cgroup_weight",
3704                 .lname  = "Cgroup weight",
3705                 .type   = FIO_OPT_INT,
3706                 .off1   = td_var_offset(cgroup_weight),
3707                 .help   = "Use given weight for cgroup",
3708                 .minval = 100,
3709                 .maxval = 1000,
3710                 .parent = "cgroup",
3711                 .category = FIO_OPT_C_GENERAL,
3712                 .group  = FIO_OPT_G_CGROUP,
3713         },
3714         {
3715                 .name   = "uid",
3716                 .lname  = "User ID",
3717                 .type   = FIO_OPT_INT,
3718                 .off1   = td_var_offset(uid),
3719                 .help   = "Run job with this user ID",
3720                 .category = FIO_OPT_C_GENERAL,
3721                 .group  = FIO_OPT_G_CRED,
3722         },
3723         {
3724                 .name   = "gid",
3725                 .lname  = "Group ID",
3726                 .type   = FIO_OPT_INT,
3727                 .off1   = td_var_offset(gid),
3728                 .help   = "Run job with this group ID",
3729                 .category = FIO_OPT_C_GENERAL,
3730                 .group  = FIO_OPT_G_CRED,
3731         },
3732         {
3733                 .name   = "kb_base",
3734                 .lname  = "KB Base",
3735                 .type   = FIO_OPT_INT,
3736                 .off1   = td_var_offset(kb_base),
3737                 .prio   = 1,
3738                 .def    = "1024",
3739                 .posval = {
3740                           { .ival = "1024",
3741                             .oval = 1024,
3742                             .help = "Use 1024 as the K base",
3743                           },
3744                           { .ival = "1000",
3745                             .oval = 1000,
3746                             .help = "Use 1000 as the K base",
3747                           },
3748                 },
3749                 .help   = "How many bytes per KB for reporting (1000 or 1024)",
3750                 .category = FIO_OPT_C_GENERAL,
3751                 .group  = FIO_OPT_G_INVALID,
3752         },
3753         {
3754                 .name   = "unit_base",
3755                 .lname  = "Base unit for reporting (Bits or Bytes)",
3756                 .type   = FIO_OPT_INT,
3757                 .off1   = td_var_offset(unit_base),
3758                 .prio   = 1,
3759                 .posval = {
3760                           { .ival = "0",
3761                             .oval = 0,
3762                             .help = "Auto-detect",
3763                           },
3764                           { .ival = "8",
3765                             .oval = 8,
3766                             .help = "Normal (byte based)",
3767                           },
3768                           { .ival = "1",
3769                             .oval = 1,
3770                             .help = "Bit based",
3771                           },
3772                 },
3773                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3774                 .category = FIO_OPT_C_GENERAL,
3775                 .group  = FIO_OPT_G_INVALID,
3776         },
3777         {
3778                 .name   = "hugepage-size",
3779                 .lname  = "Hugepage size",
3780                 .type   = FIO_OPT_INT,
3781                 .off1   = td_var_offset(hugepage_size),
3782                 .help   = "When using hugepages, specify size of each page",
3783                 .def    = __fio_stringify(FIO_HUGE_PAGE),
3784                 .interval = 1024 * 1024,
3785                 .category = FIO_OPT_C_GENERAL,
3786                 .group  = FIO_OPT_G_INVALID,
3787         },
3788         {
3789                 .name   = "flow_id",
3790                 .lname  = "I/O flow ID",
3791                 .type   = FIO_OPT_INT,
3792                 .off1   = td_var_offset(flow_id),
3793                 .help   = "The flow index ID to use",
3794                 .def    = "0",
3795                 .category = FIO_OPT_C_IO,
3796                 .group  = FIO_OPT_G_IO_FLOW,
3797         },
3798         {
3799                 .name   = "flow",
3800                 .lname  = "I/O flow weight",
3801                 .type   = FIO_OPT_INT,
3802                 .off1   = td_var_offset(flow),
3803                 .help   = "Weight for flow control of this job",
3804                 .parent = "flow_id",
3805                 .hide   = 1,
3806                 .def    = "0",
3807                 .category = FIO_OPT_C_IO,
3808                 .group  = FIO_OPT_G_IO_FLOW,
3809         },
3810         {
3811                 .name   = "flow_watermark",
3812                 .lname  = "I/O flow watermark",
3813                 .type   = FIO_OPT_INT,
3814                 .off1   = td_var_offset(flow_watermark),
3815                 .help   = "High watermark for flow control. This option"
3816                         " should be set to the same value for all threads"
3817                         " with non-zero flow.",
3818                 .parent = "flow_id",
3819                 .hide   = 1,
3820                 .def    = "1024",
3821                 .category = FIO_OPT_C_IO,
3822                 .group  = FIO_OPT_G_IO_FLOW,
3823         },
3824         {
3825                 .name   = "flow_sleep",
3826                 .lname  = "I/O flow sleep",
3827                 .type   = FIO_OPT_INT,
3828                 .off1   = td_var_offset(flow_sleep),
3829                 .help   = "How many microseconds to sleep after being held"
3830                         " back by the flow control mechanism",
3831                 .parent = "flow_id",
3832                 .hide   = 1,
3833                 .def    = "0",
3834                 .category = FIO_OPT_C_IO,
3835                 .group  = FIO_OPT_G_IO_FLOW,
3836         },
3837         {
3838                 .name   = "skip_bad",
3839                 .lname  = "Skip operations against bad blocks",
3840                 .type   = FIO_OPT_BOOL,
3841                 .off1   = td_var_offset(skip_bad),
3842                 .help   = "Skip operations against known bad blocks.",
3843                 .hide   = 1,
3844                 .def    = "0",
3845                 .category = FIO_OPT_C_IO,
3846                 .group  = FIO_OPT_G_MTD,
3847         },
3848         {
3849                 .name = NULL,
3850         },
3851 };
3852
3853 static void add_to_lopt(struct option *lopt, struct fio_option *o,
3854                         const char *name, int val)
3855 {
3856         lopt->name = (char *) name;
3857         lopt->val = val;
3858         if (o->type == FIO_OPT_STR_SET)
3859                 lopt->has_arg = optional_argument;
3860         else
3861                 lopt->has_arg = required_argument;
3862 }
3863
3864 static void options_to_lopts(struct fio_option *opts,
3865                               struct option *long_options,
3866                               int i, int option_type)
3867 {
3868         struct fio_option *o = &opts[0];
3869         while (o->name) {
3870                 add_to_lopt(&long_options[i], o, o->name, option_type);
3871                 if (o->alias) {
3872                         i++;
3873                         add_to_lopt(&long_options[i], o, o->alias, option_type);
3874                 }
3875
3876                 i++;
3877                 o++;
3878                 assert(i < FIO_NR_OPTIONS);
3879         }
3880 }
3881
3882 void fio_options_set_ioengine_opts(struct option *long_options,
3883                                    struct thread_data *td)
3884 {
3885         unsigned int i;
3886
3887         i = 0;
3888         while (long_options[i].name) {
3889                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3890                         memset(&long_options[i], 0, sizeof(*long_options));
3891                         break;
3892                 }
3893                 i++;
3894         }
3895
3896         /*
3897          * Just clear out the prior ioengine options.
3898          */
3899         if (!td || !td->eo)
3900                 return;
3901
3902         options_to_lopts(td->io_ops->options, long_options, i,
3903                          FIO_GETOPT_IOENGINE);
3904 }
3905
3906 void fio_options_dup_and_init(struct option *long_options)
3907 {
3908         unsigned int i;
3909
3910         options_init(fio_options);
3911
3912         i = 0;
3913         while (long_options[i].name)
3914                 i++;
3915
3916         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3917 }
3918
3919 struct fio_keyword {
3920         const char *word;
3921         const char *desc;
3922         char *replace;
3923 };
3924
3925 static struct fio_keyword fio_keywords[] = {
3926         {
3927                 .word   = "$pagesize",
3928                 .desc   = "Page size in the system",
3929         },
3930         {
3931                 .word   = "$mb_memory",
3932                 .desc   = "Megabytes of memory online",
3933         },
3934         {
3935                 .word   = "$ncpus",
3936                 .desc   = "Number of CPUs online in the system",
3937         },
3938         {
3939                 .word   = NULL,
3940         },
3941 };
3942
3943 void fio_keywords_exit(void)
3944 {
3945         struct fio_keyword *kw;
3946
3947         kw = &fio_keywords[0];
3948         while (kw->word) {
3949                 free(kw->replace);
3950                 kw->replace = NULL;
3951                 kw++;
3952         }
3953 }
3954
3955 void fio_keywords_init(void)
3956 {
3957         unsigned long long mb_memory;
3958         char buf[128];
3959         long l;
3960
3961         sprintf(buf, "%lu", (unsigned long) page_size);
3962         fio_keywords[0].replace = strdup(buf);
3963
3964         mb_memory = os_phys_mem() / (1024 * 1024);
3965         sprintf(buf, "%llu", mb_memory);
3966         fio_keywords[1].replace = strdup(buf);
3967
3968         l = cpus_online();
3969         sprintf(buf, "%lu", l);
3970         fio_keywords[2].replace = strdup(buf);
3971 }
3972
3973 #define BC_APP          "bc"
3974
3975 static char *bc_calc(char *str)
3976 {
3977         char buf[128], *tmp;
3978         FILE *f;
3979         int ret;
3980
3981         /*
3982          * No math, just return string
3983          */
3984         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3985              !strchr(str, '/')) || strchr(str, '\''))
3986                 return str;
3987
3988         /*
3989          * Split option from value, we only need to calculate the value
3990          */
3991         tmp = strchr(str, '=');
3992         if (!tmp)
3993                 return str;
3994
3995         tmp++;
3996
3997         /*
3998          * Prevent buffer overflows; such a case isn't reasonable anyway
3999          */
4000         if (strlen(str) >= 128 || strlen(tmp) > 100)
4001                 return str;
4002
4003         sprintf(buf, "which %s > /dev/null", BC_APP);
4004         if (system(buf)) {
4005                 log_err("fio: bc is needed for performing math\n");
4006                 return NULL;
4007         }
4008
4009         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
4010         f = popen(buf, "r");
4011         if (!f)
4012                 return NULL;
4013
4014         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
4015         if (ret <= 0) {
4016                 pclose(f);
4017                 return NULL;
4018         }
4019
4020         pclose(f);
4021         buf[(tmp - str) + ret - 1] = '\0';
4022         memcpy(buf, str, tmp - str);
4023         free(str);
4024         return strdup(buf);
4025 }
4026
4027 /*
4028  * Return a copy of the input string with substrings of the form ${VARNAME}
4029  * substituted with the value of the environment variable VARNAME.  The
4030  * substitution always occurs, even if VARNAME is empty or the corresponding
4031  * environment variable undefined.
4032  */
4033 static char *option_dup_subs(const char *opt)
4034 {
4035         char out[OPT_LEN_MAX+1];
4036         char in[OPT_LEN_MAX+1];
4037         char *outptr = out;
4038         char *inptr = in;
4039         char *ch1, *ch2, *env;
4040         ssize_t nchr = OPT_LEN_MAX;
4041         size_t envlen;
4042
4043         if (strlen(opt) + 1 > OPT_LEN_MAX) {
4044                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
4045                 return NULL;
4046         }
4047
4048         in[OPT_LEN_MAX] = '\0';
4049         strncpy(in, opt, OPT_LEN_MAX);
4050
4051         while (*inptr && nchr > 0) {
4052                 if (inptr[0] == '$' && inptr[1] == '{') {
4053                         ch2 = strchr(inptr, '}');
4054                         if (ch2 && inptr+1 < ch2) {
4055                                 ch1 = inptr+2;
4056                                 inptr = ch2+1;
4057                                 *ch2 = '\0';
4058
4059                                 env = getenv(ch1);
4060                                 if (env) {
4061                                         envlen = strlen(env);
4062                                         if (envlen <= nchr) {
4063                                                 memcpy(outptr, env, envlen);
4064                                                 outptr += envlen;
4065                                                 nchr -= envlen;
4066                                         }
4067                                 }
4068
4069                                 continue;
4070                         }
4071                 }
4072
4073                 *outptr++ = *inptr++;
4074                 --nchr;
4075         }
4076
4077         *outptr = '\0';
4078         return strdup(out);
4079 }
4080
4081 /*
4082  * Look for reserved variable names and replace them with real values
4083  */
4084 static char *fio_keyword_replace(char *opt)
4085 {
4086         char *s;
4087         int i;
4088         int docalc = 0;
4089
4090         for (i = 0; fio_keywords[i].word != NULL; i++) {
4091                 struct fio_keyword *kw = &fio_keywords[i];
4092
4093                 while ((s = strstr(opt, kw->word)) != NULL) {
4094                         char *new = malloc(strlen(opt) + 1);
4095                         char *o_org = opt;
4096                         int olen = s - opt;
4097                         int len;
4098
4099                         /*
4100                          * Copy part of the string before the keyword and
4101                          * sprintf() the replacement after it.
4102                          */
4103                         memcpy(new, opt, olen);
4104                         len = sprintf(new + olen, "%s", kw->replace);
4105
4106                         /*
4107                          * If there's more in the original string, copy that
4108                          * in too
4109                          */
4110                         opt += strlen(kw->word) + olen;
4111                         if (strlen(opt))
4112                                 memcpy(new + olen + len, opt, opt - o_org - 1);
4113
4114                         /*
4115                          * replace opt and free the old opt
4116                          */
4117                         opt = new;
4118                         free(o_org);
4119
4120                         docalc = 1;
4121                 }
4122         }
4123
4124         /*
4125          * Check for potential math and invoke bc, if possible
4126          */
4127         if (docalc)
4128                 opt = bc_calc(opt);
4129
4130         return opt;
4131 }
4132
4133 static char **dup_and_sub_options(char **opts, int num_opts)
4134 {
4135         int i;
4136         char **opts_copy = malloc(num_opts * sizeof(*opts));
4137         for (i = 0; i < num_opts; i++) {
4138                 opts_copy[i] = option_dup_subs(opts[i]);
4139                 if (!opts_copy[i])
4140                         continue;
4141                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
4142         }
4143         return opts_copy;
4144 }
4145
4146 static void show_closest_option(const char *opt)
4147 {
4148         int best_option, best_distance;
4149         int i, distance;
4150         char *name;
4151
4152         if (!strlen(opt))
4153                 return;
4154
4155         name = strdup(opt);
4156         i = 0;
4157         while (name[i] != '\0' && name[i] != '=')
4158                 i++;
4159         name[i] = '\0';
4160
4161         best_option = -1;
4162         best_distance = INT_MAX;
4163         i = 0;
4164         while (fio_options[i].name) {
4165                 distance = string_distance(name, fio_options[i].name);
4166                 if (distance < best_distance) {
4167                         best_distance = distance;
4168                         best_option = i;
4169                 }
4170                 i++;
4171         }
4172
4173         if (best_option != -1 && string_distance_ok(name, best_distance))
4174                 log_err("Did you mean %s?\n", fio_options[best_option].name);
4175
4176         free(name);
4177 }
4178
4179 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
4180 {
4181         int i, ret, unknown;
4182         char **opts_copy;
4183
4184         sort_options(opts, fio_options, num_opts);
4185         opts_copy = dup_and_sub_options(opts, num_opts);
4186
4187         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
4188                 struct fio_option *o;
4189                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
4190                                                 &o, td, &td->opt_list);
4191
4192                 if (!newret && o)
4193                         fio_option_mark_set(&td->o, o);
4194
4195                 if (opts_copy[i]) {
4196                         if (newret && !o) {
4197                                 unknown++;
4198                                 continue;
4199                         }
4200                         free(opts_copy[i]);
4201                         opts_copy[i] = NULL;
4202                 }
4203
4204                 ret |= newret;
4205         }
4206
4207         if (unknown) {
4208                 ret |= ioengine_load(td);
4209                 if (td->eo) {
4210                         sort_options(opts_copy, td->io_ops->options, num_opts);
4211                         opts = opts_copy;
4212                 }
4213                 for (i = 0; i < num_opts; i++) {
4214                         struct fio_option *o = NULL;
4215                         int newret = 1;
4216
4217                         if (!opts_copy[i])
4218                                 continue;
4219
4220                         if (td->eo)
4221                                 newret = parse_option(opts_copy[i], opts[i],
4222                                                       td->io_ops->options, &o,
4223                                                       td->eo, &td->opt_list);
4224
4225                         ret |= newret;
4226                         if (!o) {
4227                                 log_err("Bad option <%s>\n", opts[i]);
4228                                 show_closest_option(opts[i]);
4229                         }
4230                         free(opts_copy[i]);
4231                         opts_copy[i] = NULL;
4232                 }
4233         }
4234
4235         free(opts_copy);
4236         return ret;
4237 }
4238
4239 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
4240 {
4241         int ret;
4242
4243         ret = parse_cmd_option(opt, val, fio_options, td, &td->opt_list);
4244         if (!ret) {
4245                 struct fio_option *o;
4246
4247                 o = find_option(fio_options, opt);
4248                 if (o)
4249                         fio_option_mark_set(&td->o, o);
4250         }
4251
4252         return ret;
4253 }
4254
4255 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
4256                                 char *val)
4257 {
4258         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
4259                                         &td->opt_list);
4260 }
4261
4262 void fio_fill_default_options(struct thread_data *td)
4263 {
4264         td->o.magic = OPT_MAGIC;
4265         fill_default_options(td, fio_options);
4266 }
4267
4268 int fio_show_option_help(const char *opt)
4269 {
4270         return show_cmd_help(fio_options, opt);
4271 }
4272
4273 void options_mem_dupe(void *data, struct fio_option *options)
4274 {
4275         struct fio_option *o;
4276         char **ptr;
4277
4278         for (o = &options[0]; o->name; o++) {
4279                 if (o->type != FIO_OPT_STR_STORE)
4280                         continue;
4281
4282                 ptr = td_var(data, o, o->off1);
4283                 if (*ptr)
4284                         *ptr = strdup(*ptr);
4285         }
4286 }
4287
4288 /*
4289  * dupe FIO_OPT_STR_STORE options
4290  */
4291 void fio_options_mem_dupe(struct thread_data *td)
4292 {
4293         options_mem_dupe(&td->o, fio_options);
4294
4295         if (td->eo && td->io_ops) {
4296                 void *oldeo = td->eo;
4297
4298                 td->eo = malloc(td->io_ops->option_struct_size);
4299                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
4300                 options_mem_dupe(td->eo, td->io_ops->options);
4301         }
4302 }
4303
4304 unsigned int fio_get_kb_base(void *data)
4305 {
4306         struct thread_options *o = data;
4307         unsigned int kb_base = 0;
4308
4309         /*
4310          * This is a hack... For private options, *data is not holding
4311          * a pointer to the thread_options, but to private data. This means
4312          * we can't safely dereference it, but magic is first so mem wise
4313          * it is valid. But this also means that if the job first sets
4314          * kb_base and expects that to be honored by private options,
4315          * it will be disappointed. We will return the global default
4316          * for this.
4317          */
4318         if (o && o->magic == OPT_MAGIC)
4319                 kb_base = o->kb_base;
4320         if (!kb_base)
4321                 kb_base = 1024;
4322
4323         return kb_base;
4324 }
4325
4326 int add_option(struct fio_option *o)
4327 {
4328         struct fio_option *__o;
4329         int opt_index = 0;
4330
4331         __o = fio_options;
4332         while (__o->name) {
4333                 opt_index++;
4334                 __o++;
4335         }
4336
4337         if (opt_index + 1 == FIO_MAX_OPTS) {
4338                 log_err("fio: FIO_MAX_OPTS is too small\n");
4339                 return 1;
4340         }
4341
4342         memcpy(&fio_options[opt_index], o, sizeof(*o));
4343         fio_options[opt_index + 1].name = NULL;
4344         return 0;
4345 }
4346
4347 void invalidate_profile_options(const char *prof_name)
4348 {
4349         struct fio_option *o;
4350
4351         o = fio_options;
4352         while (o->name) {
4353                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
4354                         o->type = FIO_OPT_INVALID;
4355                         o->prof_name = NULL;
4356                 }
4357                 o++;
4358         }
4359 }
4360
4361 void add_opt_posval(const char *optname, const char *ival, const char *help)
4362 {
4363         struct fio_option *o;
4364         unsigned int i;
4365
4366         o = find_option(fio_options, optname);
4367         if (!o)
4368                 return;
4369
4370         for (i = 0; i < PARSE_MAX_VP; i++) {
4371                 if (o->posval[i].ival)
4372                         continue;
4373
4374                 o->posval[i].ival = ival;
4375                 o->posval[i].help = help;
4376                 break;
4377         }
4378 }
4379
4380 void del_opt_posval(const char *optname, const char *ival)
4381 {
4382         struct fio_option *o;
4383         unsigned int i;
4384
4385         o = find_option(fio_options, optname);
4386         if (!o)
4387                 return;
4388
4389         for (i = 0; i < PARSE_MAX_VP; i++) {
4390                 if (!o->posval[i].ival)
4391                         continue;
4392                 if (strcmp(o->posval[i].ival, ival))
4393                         continue;
4394
4395                 o->posval[i].ival = NULL;
4396                 o->posval[i].help = NULL;
4397         }
4398 }
4399
4400 void fio_options_free(struct thread_data *td)
4401 {
4402         options_free(fio_options, td);
4403         if (td->eo && td->io_ops && td->io_ops->options) {
4404                 options_free(td->io_ops->options, td->eo);
4405                 free(td->eo);
4406                 td->eo = NULL;
4407         }
4408 }
4409
4410 struct fio_option *fio_option_find(const char *name)
4411 {
4412         return find_option(fio_options, name);
4413 }
4414
4415 static struct fio_option *find_next_opt(struct thread_options *o,
4416                                         struct fio_option *from,
4417                                         unsigned int off1)
4418 {
4419         struct fio_option *opt;
4420
4421         if (!from)
4422                 from = &fio_options[0];
4423         else
4424                 from++;
4425
4426         opt = NULL;
4427         do {
4428                 if (off1 == from->off1) {
4429                         opt = from;
4430                         break;
4431                 }
4432                 from++;
4433         } while (from->name);
4434
4435         return opt;
4436 }
4437
4438 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
4439 {
4440         unsigned int opt_off, index, offset;
4441
4442         opt_off = opt - &fio_options[0];
4443         index = opt_off / (8 * sizeof(uint64_t));
4444         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4445         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
4446 }
4447
4448 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
4449 {
4450         struct fio_option *opt, *next;
4451
4452         next = NULL;
4453         while ((opt = find_next_opt(o, next, off1)) != NULL) {
4454                 if (opt_is_set(o, opt))
4455                         return true;
4456
4457                 next = opt;
4458         }
4459
4460         return false;
4461 }
4462
4463 void fio_option_mark_set(struct thread_options *o, struct fio_option *opt)
4464 {
4465         unsigned int opt_off, index, offset;
4466
4467         opt_off = opt - &fio_options[0];
4468         index = opt_off / (8 * sizeof(uint64_t));
4469         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4470         o->set_options[index] |= (uint64_t)1 << offset;
4471 }