options.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <ctype.h>
   5 #include <string.h>
   6 #include <assert.h>
   7 #include <libgen.h>
   8 #include <fcntl.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11
  12 #include "fio.h"
  13 #include "verify.h"
  14 #include "parse.h"
  15 #include "lib/fls.h"
  16 #include "options.h"
  17
  18 #include "crc/crc32c.h"
  19
  20 /*
  21  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  22  */
  23 static char *get_opt_postfix(const char *str)
  24 {
  25         char *p = strstr(str, ":");
  26
  27         if (!p)
  28                 return NULL;
  29
  30         p++;
  31         strip_blank_front(&p);
  32         strip_blank_end(p);
  33         return strdup(p);
  34 }
  35
  36 static int converthexchartoint(char a)
  37 {
  38         int base;
  39
  40         switch(a) {
  41         case '0'...'9':
  42                 base = '0';
  43                 break;
  44         case 'A'...'F':
  45                 base = 'A' - 10;
  46                 break;
  47         case 'a'...'f':
  48                 base = 'a' - 10;
  49                 break;
  50         default:
  51                 base = 0;
  52         }
  53         return (a - base);
  54 }
  55
  56 static int bs_cmp(const void *p1, const void *p2)
  57 {
  58         const struct bssplit *bsp1 = p1;
  59         const struct bssplit *bsp2 = p2;
  60
  61         return bsp1->perc < bsp2->perc;
  62 }
  63
  64 static int bssplit_ddir(struct thread_data *td, int ddir, char *str)
  65 {
  66         struct bssplit *bssplit;
  67         unsigned int i, perc, perc_missing;
  68         unsigned int max_bs, min_bs;
  69         long long val;
  70         char *fname;
  71
  72         td->o.bssplit_nr[ddir] = 4;
  73         bssplit = malloc(4 * sizeof(struct bssplit));
  74
  75         i = 0;
  76         max_bs = 0;
  77         min_bs = -1;
  78         while ((fname = strsep(&str, ":")) != NULL) {
  79                 char *perc_str;
  80
  81                 if (!strlen(fname))
  82                         break;
  83
  84                 /*
  85                  * grow struct buffer, if needed
  86                  */
  87                 if (i == td->o.bssplit_nr[ddir]) {
  88                         td->o.bssplit_nr[ddir] <<= 1;
  89                         bssplit = realloc(bssplit, td->o.bssplit_nr[ddir]
  90                                                   * sizeof(struct bssplit));
  91                 }
  92
  93                 perc_str = strstr(fname, "/");
  94                 if (perc_str) {
  95                         *perc_str = '\0';
  96                         perc_str++;
  97                         perc = atoi(perc_str);
  98                         if (perc > 100)
  99                                 perc = 100;
 100                         else if (!perc)
 101                                 perc = -1;
 102                 } else
 103                         perc = -1;
 104
 105                 if (str_to_decimal(fname, &val, 1, td)) {
 106                         log_err("fio: bssplit conversion failed\n");
 107                         free(td->o.bssplit);
 108                         return 1;
 109                 }
 110
 111                 if (val > max_bs)
 112                         max_bs = val;
 113                 if (val < min_bs)
 114                         min_bs = val;
 115
 116                 bssplit[i].bs = val;
 117                 bssplit[i].perc = perc;
 118                 i++;
 119         }
 120
 121         td->o.bssplit_nr[ddir] = i;
 122
 123         /*
 124          * Now check if the percentages add up, and how much is missing
 125          */
 126         perc = perc_missing = 0;
 127         for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
 128                 struct bssplit *bsp = &bssplit[i];
 129
 130                 if (bsp->perc == (unsigned char) -1)
 131                         perc_missing++;
 132                 else
 133                         perc += bsp->perc;
 134         }
 135
 136         if (perc > 100) {
 137                 log_err("fio: bssplit percentages add to more than 100%%\n");
 138                 free(bssplit);
 139                 return 1;
 140         }
 141         /*
 142          * If values didn't have a percentage set, divide the remains between
 143          * them.
 144          */
 145         if (perc_missing) {
 146                 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
 147                         struct bssplit *bsp = &bssplit[i];
 148
 149                         if (bsp->perc == (unsigned char) -1)
 150                                 bsp->perc = (100 - perc) / perc_missing;
 151                 }
 152         }
 153
 154         td->o.min_bs[ddir] = min_bs;
 155         td->o.max_bs[ddir] = max_bs;
 156
 157         /*
 158          * now sort based on percentages, for ease of lookup
 159          */
 160         qsort(bssplit, td->o.bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 161         td->o.bssplit[ddir] = bssplit;
 162         return 0;
 163
 164 }
 165
 166 static int str_bssplit_cb(void *data, const char *input)
 167 {
 168         struct thread_data *td = data;
 169         char *str, *p, *odir;
 170         int ret = 0;
 171
 172         p = str = strdup(input);
 173
 174         strip_blank_front(&str);
 175         strip_blank_end(str);
 176
 177         odir = strchr(str, ',');
 178         if (odir) {
 179                 ret = bssplit_ddir(td, DDIR_WRITE, odir + 1);
 180                 if (!ret) {
 181                         *odir = '\0';
 182                         ret = bssplit_ddir(td, DDIR_READ, str);
 183                 }
 184         } else {
 185                 char *op;
 186
 187                 op = strdup(str);
 188
 189                 ret = bssplit_ddir(td, DDIR_READ, str);
 190                 if (!ret)
 191                         ret = bssplit_ddir(td, DDIR_WRITE, op);
 192
 193                 free(op);
 194         }
 195
 196         free(p);
 197         return ret;
 198 }
 199
 200 static int str_rw_cb(void *data, const char *str)
 201 {
 202         struct thread_data *td = data;
 203         char *nr = get_opt_postfix(str);
 204
 205         td->o.ddir_seq_nr = 1;
 206         if (nr) {
 207                 td->o.ddir_seq_nr = atoi(nr);
 208                 free(nr);
 209         }
 210
 211         return 0;
 212 }
 213
 214 static int str_mem_cb(void *data, const char *mem)
 215 {
 216         struct thread_data *td = data;
 217
 218         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
 219                 td->mmapfile = get_opt_postfix(mem);
 220                 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
 221                         log_err("fio: mmaphuge:/path/to/file\n");
 222                         return 1;
 223                 }
 224         }
 225
 226         return 0;
 227 }
 228
 229 static int str_verify_cb(void *data, const char *mem)
 230 {
 231         struct thread_data *td = data;
 232
 233         if (td->o.verify != VERIFY_CRC32C_INTEL)
 234                 return 0;
 235
 236         if (!crc32c_intel_works()) {
 237                 log_info("fio: System does not support hw accelerated crc32c. Falling back to sw crc32c.\n");
 238                 td->o.verify = VERIFY_CRC32C;
 239         }
 240
 241         return 0;
 242 }
 243
 244 static int fio_clock_source_cb(void *data, const char *str)
 245 {
 246         struct thread_data *td = data;
 247
 248         fio_clock_source = td->o.clocksource;
 249         fio_time_init();
 250         return 0;
 251 }
 252
 253 static int str_lockmem_cb(void fio_unused *data, unsigned long long *val)
 254 {
 255         mlock_size = *val;
 256         return 0;
 257 }
 258
 259 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 260 {
 261         struct thread_data *td = data;
 262
 263         td->o.rwmix[DDIR_READ] = *val;
 264         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 265         return 0;
 266 }
 267
 268 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 269 {
 270         struct thread_data *td = data;
 271
 272         td->o.rwmix[DDIR_WRITE] = *val;
 273         td->o.rwmix[DDIR_READ] = 100 - *val;
 274         return 0;
 275 }
 276
 277 #ifdef FIO_HAVE_IOPRIO
 278 static int str_prioclass_cb(void *data, unsigned long long *val)
 279 {
 280         struct thread_data *td = data;
 281         unsigned short mask;
 282
 283         /*
 284          * mask off old class bits, str_prio_cb() may have set a default class
 285          */
 286         mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
 287         td->ioprio &= mask;
 288
 289         td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
 290         td->ioprio_set = 1;
 291         return 0;
 292 }
 293
 294 static int str_prio_cb(void *data, unsigned long long *val)
 295 {
 296         struct thread_data *td = data;
 297
 298         td->ioprio |= *val;
 299
 300         /*
 301          * If no class is set, assume BE
 302          */
 303         if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
 304                 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
 305
 306         td->ioprio_set = 1;
 307         return 0;
 308 }
 309 #endif
 310
 311 static int str_exitall_cb(void)
 312 {
 313         exitall_on_terminate = 1;
 314         return 0;
 315 }
 316
 317 #ifdef FIO_HAVE_CPU_AFFINITY
 318 static int str_cpumask_cb(void *data, unsigned long long *val)
 319 {
 320         struct thread_data *td = data;
 321         unsigned int i;
 322         long max_cpu;
 323         int ret;
 324
 325         ret = fio_cpuset_init(&td->o.cpumask);
 326         if (ret < 0) {
 327                 log_err("fio: cpuset_init failed\n");
 328                 td_verror(td, ret, "fio_cpuset_init");
 329                 return 1;
 330         }
 331
 332         max_cpu = cpus_online();
 333
 334         for (i = 0; i < sizeof(int) * 8; i++) {
 335                 if ((1 << i) & *val) {
 336                         if (i > max_cpu) {
 337                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 338                                                                 max_cpu);
 339                                 return 1;
 340                         }
 341                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 342                         fio_cpu_set(&td->o.cpumask, i);
 343                 }
 344         }
 345
 346         td->o.cpumask_set = 1;
 347         return 0;
 348 }
 349
 350 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 351                             const char *input)
 352 {
 353         char *cpu, *str, *p;
 354         long max_cpu;
 355         int ret = 0;
 356
 357         ret = fio_cpuset_init(mask);
 358         if (ret < 0) {
 359                 log_err("fio: cpuset_init failed\n");
 360                 td_verror(td, ret, "fio_cpuset_init");
 361                 return 1;
 362         }
 363
 364         p = str = strdup(input);
 365
 366         strip_blank_front(&str);
 367         strip_blank_end(str);
 368
 369         max_cpu = cpus_online();
 370
 371         while ((cpu = strsep(&str, ",")) != NULL) {
 372                 char *str2, *cpu2;
 373                 int icpu, icpu2;
 374
 375                 if (!strlen(cpu))
 376                         break;
 377
 378                 str2 = cpu;
 379                 icpu2 = -1;
 380                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 381                         if (!strlen(cpu2))
 382                                 break;
 383
 384                         icpu2 = atoi(cpu2);
 385                 }
 386
 387                 icpu = atoi(cpu);
 388                 if (icpu2 == -1)
 389                         icpu2 = icpu;
 390                 while (icpu <= icpu2) {
 391                         if (icpu >= FIO_MAX_CPUS) {
 392                                 log_err("fio: your OS only supports up to"
 393                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 394                                 ret = 1;
 395                                 break;
 396                         }
 397                         if (icpu > max_cpu) {
 398                                 log_err("fio: CPU %d too large (max=%ld)\n",
 399                                                         icpu, max_cpu);
 400                                 ret = 1;
 401                                 break;
 402                         }
 403
 404                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 405                         fio_cpu_set(mask, icpu);
 406                         icpu++;
 407                 }
 408                 if (ret)
 409                         break;
 410         }
 411
 412         free(p);
 413         if (!ret)
 414                 td->o.cpumask_set = 1;
 415         return ret;
 416 }
 417
 418 static int str_cpus_allowed_cb(void *data, const char *input)
 419 {
 420         struct thread_data *td = data;
 421         int ret;
 422
 423         ret = set_cpus_allowed(td, &td->o.cpumask, input);
 424         if (!ret)
 425                 td->o.cpumask_set = 1;
 426
 427         return ret;
 428 }
 429
 430 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 431 {
 432         struct thread_data *td = data;
 433         int ret;
 434
 435         ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
 436         if (!ret)
 437                 td->o.verify_cpumask_set = 1;
 438
 439         return ret;
 440 }
 441 #endif
 442
 443 #ifdef FIO_HAVE_TRIM
 444 static int str_verify_trim_cb(void *data, unsigned long long *val)
 445 {
 446         struct thread_data *td = data;
 447
 448         td->o.trim_percentage = *val;
 449         return 0;
 450 }
 451 #endif
 452
 453 static int str_fst_cb(void *data, const char *str)
 454 {
 455         struct thread_data *td = data;
 456         char *nr = get_opt_postfix(str);
 457
 458         td->file_service_nr = 1;
 459         if (nr) {
 460                 td->file_service_nr = atoi(nr);
 461                 free(nr);
 462         }
 463
 464         return 0;
 465 }
 466
 467 #ifdef FIO_HAVE_SYNC_FILE_RANGE
 468 static int str_sfr_cb(void *data, const char *str)
 469 {
 470         struct thread_data *td = data;
 471         char *nr = get_opt_postfix(str);
 472
 473         td->sync_file_range_nr = 1;
 474         if (nr) {
 475                 td->sync_file_range_nr = atoi(nr);
 476                 free(nr);
 477         }
 478
 479         return 0;
 480 }
 481 #endif
 482
 483 static int check_dir(struct thread_data *td, char *fname)
 484 {
 485 #if 0
 486         char file[PATH_MAX], *dir;
 487         int elen = 0;
 488
 489         if (td->o.directory) {
 490                 strcpy(file, td->o.directory);
 491                 strcat(file, "/");
 492                 elen = strlen(file);
 493         }
 494
 495         sprintf(file + elen, "%s", fname);
 496         dir = dirname(file);
 497
 498         {
 499         struct stat sb;
 500         /*
 501          * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
 502          * yet, so we can't do this check right here...
 503          */
 504         if (lstat(dir, &sb) < 0) {
 505                 int ret = errno;
 506
 507                 log_err("fio: %s is not a directory\n", dir);
 508                 td_verror(td, ret, "lstat");
 509                 return 1;
 510         }
 511
 512         if (!S_ISDIR(sb.st_mode)) {
 513                 log_err("fio: %s is not a directory\n", dir);
 514                 return 1;
 515         }
 516         }
 517 #endif
 518
 519         return 0;
 520 }
 521
 522 /*
 523  * Return next file in the string. Files are separated with ':'. If the ':'
 524  * is escaped with a '\', then that ':' is part of the filename and does not
 525  * indicate a new file.
 526  */
 527 static char *get_next_file_name(char **ptr)
 528 {
 529         char *str = *ptr;
 530         char *p, *start;
 531
 532         if (!str || !strlen(str))
 533                 return NULL;
 534
 535         start = str;
 536         do {
 537                 /*
 538                  * No colon, we are done
 539                  */
 540                 p = strchr(str, ':');
 541                 if (!p) {
 542                         *ptr = NULL;
 543                         break;
 544                 }
 545
 546                 /*
 547                  * We got a colon, but it's the first character. Skip and
 548                  * continue
 549                  */
 550                 if (p == start) {
 551                         str = ++start;
 552                         continue;
 553                 }
 554
 555                 if (*(p - 1) != '\\') {
 556                         *p = '\0';
 557                         *ptr = p + 1;
 558                         break;
 559                 }
 560
 561                 memmove(p - 1, p, strlen(p) + 1);
 562                 str = p;
 563         } while (1);
 564
 565         return start;
 566 }
 567
 568 static int str_filename_cb(void *data, const char *input)
 569 {
 570         struct thread_data *td = data;
 571         char *fname, *str, *p;
 572
 573         p = str = strdup(input);
 574
 575         strip_blank_front(&str);
 576         strip_blank_end(str);
 577
 578         if (!td->files_index)
 579                 td->o.nr_files = 0;
 580
 581         while ((fname = get_next_file_name(&str)) != NULL) {
 582                 if (!strlen(fname))
 583                         break;
 584                 if (check_dir(td, fname)) {
 585                         free(p);
 586                         return 1;
 587                 }
 588                 add_file(td, fname);
 589                 td->o.nr_files++;
 590         }
 591
 592         free(p);
 593         return 0;
 594 }
 595
 596 static int str_directory_cb(void *data, const char fio_unused *str)
 597 {
 598         struct thread_data *td = data;
 599         struct stat sb;
 600
 601         if (lstat(td->o.directory, &sb) < 0) {
 602                 int ret = errno;
 603
 604                 log_err("fio: %s is not a directory\n", td->o.directory);
 605                 td_verror(td, ret, "lstat");
 606                 return 1;
 607         }
 608         if (!S_ISDIR(sb.st_mode)) {
 609                 log_err("fio: %s is not a directory\n", td->o.directory);
 610                 return 1;
 611         }
 612
 613         return 0;
 614 }
 615
 616 static int str_opendir_cb(void *data, const char fio_unused *str)
 617 {
 618         struct thread_data *td = data;
 619
 620         if (!td->files_index)
 621                 td->o.nr_files = 0;
 622
 623         return add_dir_files(td, td->o.opendir);
 624 }
 625
 626 static int str_verify_offset_cb(void *data, unsigned long long *off)
 627 {
 628         struct thread_data *td = data;
 629
 630         if (*off && *off < sizeof(struct verify_header)) {
 631                 log_err("fio: verify_offset too small\n");
 632                 return 1;
 633         }
 634
 635         td->o.verify_offset = *off;
 636         return 0;
 637 }
 638
 639 static int str_verify_pattern_cb(void *data, const char *input)
 640 {
 641         struct thread_data *td = data;
 642         long off;
 643         int i = 0, j = 0, len, k, base = 10;
 644         char* loc1, * loc2;
 645
 646         loc1 = strstr(input, "0x");
 647         loc2 = strstr(input, "0X");
 648         if (loc1 || loc2)
 649                 base = 16;
 650         off = strtol(input, NULL, base);
 651         if (off != LONG_MAX || errno != ERANGE) {
 652                 while (off) {
 653                         td->o.verify_pattern[i] = off & 0xff;
 654                         off >>= 8;
 655                         i++;
 656                 }
 657         } else {
 658                 len = strlen(input);
 659                 k = len - 1;
 660                 if (base == 16) {
 661                         if (loc1)
 662                                 j = loc1 - input + 2;
 663                         else
 664                                 j = loc2 - input + 2;
 665                 } else
 666                         return 1;
 667                 if (len - j < MAX_PATTERN_SIZE * 2) {
 668                         while (k >= j) {
 669                                 off = converthexchartoint(input[k--]);
 670                                 if (k >= j)
 671                                         off += (converthexchartoint(input[k--])
 672                                                 * 16);
 673                                 td->o.verify_pattern[i++] = (char) off;
 674                         }
 675                 }
 676         }
 677         td->o.verify_pattern_bytes = i;
 678         /*
 679          * VERIFY_META could already be set
 680          */
 681         if (td->o.verify == VERIFY_NONE)
 682                 td->o.verify = VERIFY_PATTERN;
 683         return 0;
 684 }
 685
 686 static int str_lockfile_cb(void *data, const char *str)
 687 {
 688         struct thread_data *td = data;
 689         char *nr = get_opt_postfix(str);
 690
 691         td->o.lockfile_batch = 1;
 692         if (nr) {
 693                 td->o.lockfile_batch = atoi(nr);
 694                 free(nr);
 695         }
 696
 697         return 0;
 698 }
 699
 700 static int str_write_bw_log_cb(void *data, const char *str)
 701 {
 702         struct thread_data *td = data;
 703
 704         if (str)
 705                 td->o.bw_log_file = strdup(str);
 706
 707         td->o.write_bw_log = 1;
 708         return 0;
 709 }
 710
 711 static int str_write_lat_log_cb(void *data, const char *str)
 712 {
 713         struct thread_data *td = data;
 714
 715         if (str)
 716                 td->o.lat_log_file = strdup(str);
 717
 718         td->o.write_lat_log = 1;
 719         return 0;
 720 }
 721
 722 static int str_gtod_reduce_cb(void *data, int *il)
 723 {
 724         struct thread_data *td = data;
 725         int val = *il;
 726
 727         td->o.disable_lat = !!val;
 728         td->o.disable_clat = !!val;
 729         td->o.disable_slat = !!val;
 730         td->o.disable_bw = !!val;
 731         if (val)
 732                 td->tv_cache_mask = 63;
 733
 734         return 0;
 735 }
 736
 737 static int str_gtod_cpu_cb(void *data, long long *il)
 738 {
 739         struct thread_data *td = data;
 740         int val = *il;
 741
 742         td->o.gtod_cpu = val;
 743         td->o.gtod_offload = 1;
 744         return 0;
 745 }
 746
 747 static int str_size_cb(void *data, unsigned long long *__val)
 748 {
 749         struct thread_data *td = data;
 750         unsigned long long v = *__val;
 751
 752         if (parse_is_percent(v)) {
 753                 td->o.size = 0;
 754                 td->o.size_percent = -1ULL - v;
 755         } else
 756                 td->o.size = v;
 757
 758         return 0;
 759 }
 760
 761 static int rw_verify(struct fio_option *o, void *data)
 762 {
 763         struct thread_data *td = data;
 764
 765         if (read_only && td_write(td)) {
 766                 log_err("fio: job <%s> has write bit set, but fio is in"
 767                         " read-only mode\n", td->o.name);
 768                 return 1;
 769         }
 770
 771         return 0;
 772 }
 773
 774 static int gtod_cpu_verify(struct fio_option *o, void *data)
 775 {
 776 #ifndef FIO_HAVE_CPU_AFFINITY
 777         struct thread_data *td = data;
 778
 779         if (td->o.gtod_cpu) {
 780                 log_err("fio: platform must support CPU affinity for"
 781                         "gettimeofday() offloading\n");
 782                 return 1;
 783         }
 784 #endif
 785
 786         return 0;
 787 }
 788
 789 static int kb_base_verify(struct fio_option *o, void *data)
 790 {
 791         struct thread_data *td = data;
 792
 793         if (td->o.kb_base != 1024 && td->o.kb_base != 1000) {
 794                 log_err("fio: kb_base set to nonsensical value: %u\n",
 795                                 td->o.kb_base);
 796                 return 1;
 797         }
 798
 799         return 0;
 800 }
 801
 802 #define __stringify_1(x)        #x
 803 #define __stringify(x)          __stringify_1(x)
 804
 805 /*
 806  * Map of job/command line options
 807  */
 808 static struct fio_option options[FIO_MAX_OPTS] = {
 809         {
 810                 .name   = "description",
 811                 .type   = FIO_OPT_STR_STORE,
 812                 .off1   = td_var_offset(description),
 813                 .help   = "Text job description",
 814         },
 815         {
 816                 .name   = "name",
 817                 .type   = FIO_OPT_STR_STORE,
 818                 .off1   = td_var_offset(name),
 819                 .help   = "Name of this job",
 820         },
 821         {
 822                 .name   = "directory",
 823                 .type   = FIO_OPT_STR_STORE,
 824                 .off1   = td_var_offset(directory),
 825                 .cb     = str_directory_cb,
 826                 .help   = "Directory to store files in",
 827         },
 828         {
 829                 .name   = "filename",
 830                 .type   = FIO_OPT_STR_STORE,
 831                 .off1   = td_var_offset(filename),
 832                 .cb     = str_filename_cb,
 833                 .prio   = -1, /* must come after "directory" */
 834                 .help   = "File(s) to use for the workload",
 835         },
 836         {
 837                 .name   = "kb_base",
 838                 .type   = FIO_OPT_INT,
 839                 .off1   = td_var_offset(kb_base),
 840                 .verify = kb_base_verify,
 841                 .prio   = 1,
 842                 .def    = "1024",
 843                 .help   = "How many bytes per KB for reporting (1000 or 1024)",
 844         },
 845         {
 846                 .name   = "lockfile",
 847                 .type   = FIO_OPT_STR,
 848                 .cb     = str_lockfile_cb,
 849                 .off1   = td_var_offset(file_lock_mode),
 850                 .help   = "Lock file when doing IO to it",
 851                 .parent = "filename",
 852                 .def    = "none",
 853                 .posval = {
 854                           { .ival = "none",
 855                             .oval = FILE_LOCK_NONE,
 856                             .help = "No file locking",
 857                           },
 858                           { .ival = "exclusive",
 859                             .oval = FILE_LOCK_EXCLUSIVE,
 860                             .help = "Exclusive file lock",
 861                           },
 862                           {
 863                             .ival = "readwrite",
 864                             .oval = FILE_LOCK_READWRITE,
 865                             .help = "Read vs write lock",
 866                           },
 867                 },
 868         },
 869         {
 870                 .name   = "opendir",
 871                 .type   = FIO_OPT_STR_STORE,
 872                 .off1   = td_var_offset(opendir),
 873                 .cb     = str_opendir_cb,
 874                 .help   = "Recursively add files from this directory and down",
 875         },
 876         {
 877                 .name   = "rw",
 878                 .alias  = "readwrite",
 879                 .type   = FIO_OPT_STR,
 880                 .cb     = str_rw_cb,
 881                 .off1   = td_var_offset(td_ddir),
 882                 .help   = "IO direction",
 883                 .def    = "read",
 884                 .verify = rw_verify,
 885                 .posval = {
 886                           { .ival = "read",
 887                             .oval = TD_DDIR_READ,
 888                             .help = "Sequential read",
 889                           },
 890                           { .ival = "write",
 891                             .oval = TD_DDIR_WRITE,
 892                             .help = "Sequential write",
 893                           },
 894                           { .ival = "randread",
 895                             .oval = TD_DDIR_RANDREAD,
 896                             .help = "Random read",
 897                           },
 898                           { .ival = "randwrite",
 899                             .oval = TD_DDIR_RANDWRITE,
 900                             .help = "Random write",
 901                           },
 902                           { .ival = "rw",
 903                             .oval = TD_DDIR_RW,
 904                             .help = "Sequential read and write mix",
 905                           },
 906                           { .ival = "randrw",
 907                             .oval = TD_DDIR_RANDRW,
 908                             .help = "Random read and write mix"
 909                           },
 910                 },
 911         },
 912         {
 913                 .name   = "rw_sequencer",
 914                 .type   = FIO_OPT_STR,
 915                 .off1   = td_var_offset(rw_seq),
 916                 .help   = "IO offset generator modifier",
 917                 .def    = "sequential",
 918                 .posval = {
 919                           { .ival = "sequential",
 920                             .oval = RW_SEQ_SEQ,
 921                             .help = "Generate sequential offsets",
 922                           },
 923                           { .ival = "identical",
 924                             .oval = RW_SEQ_IDENT,
 925                             .help = "Generate identical offsets",
 926                           },
 927                 },
 928         },
 929
 930         {
 931                 .name   = "ioengine",
 932                 .type   = FIO_OPT_STR_STORE,
 933                 .off1   = td_var_offset(ioengine),
 934                 .help   = "IO engine to use",
 935                 .def    = FIO_PREFERRED_ENGINE,
 936                 .posval = {
 937                           { .ival = "sync",
 938                             .help = "Use read/write",
 939                           },
 940                           { .ival = "psync",
 941                             .help = "Use pread/pwrite",
 942                           },
 943                           { .ival = "vsync",
 944                             .help = "Use readv/writev",
 945                           },
 946 #ifdef FIO_HAVE_LIBAIO
 947                           { .ival = "libaio",
 948                             .help = "Linux native asynchronous IO",
 949                           },
 950 #endif
 951 #ifdef FIO_HAVE_POSIXAIO
 952                           { .ival = "posixaio",
 953                             .help = "POSIX asynchronous IO",
 954                           },
 955 #endif
 956 #ifdef FIO_HAVE_SOLARISAIO
 957                           { .ival = "solarisaio",
 958                             .help = "Solaris native asynchronous IO",
 959                           },
 960 #endif
 961 #ifdef FIO_HAVE_WINDOWSAIO
 962                           { .ival = "windowsaio",
 963                             .help = "Windows native asynchronous IO"
 964                           },
 965 #endif
 966                           { .ival = "mmap",
 967                             .help = "Memory mapped IO"
 968                           },
 969 #ifdef FIO_HAVE_SPLICE
 970                           { .ival = "splice",
 971                             .help = "splice/vmsplice based IO",
 972                           },
 973                           { .ival = "netsplice",
 974                             .help = "splice/vmsplice to/from the network",
 975                           },
 976 #endif
 977 #ifdef FIO_HAVE_SGIO
 978                           { .ival = "sg",
 979                             .help = "SCSI generic v3 IO",
 980                           },
 981 #endif
 982                           { .ival = "null",
 983                             .help = "Testing engine (no data transfer)",
 984                           },
 985                           { .ival = "net",
 986                             .help = "Network IO",
 987                           },
 988 #ifdef FIO_HAVE_SYSLET
 989                           { .ival = "syslet-rw",
 990                             .help = "syslet enabled async pread/pwrite IO",
 991                           },
 992 #endif
 993                           { .ival = "cpuio",
 994                             .help = "CPU cycle burner engine",
 995                           },
 996 #ifdef FIO_HAVE_GUASI
 997                           { .ival = "guasi",
 998                             .help = "GUASI IO engine",
 999                           },
1000 #endif
1001 #ifdef FIO_HAVE_BINJECT
1002                           { .ival = "binject",
1003                             .help = "binject direct inject block engine",
1004                           },
1005 #endif
1006                           { .ival = "external",
1007                             .help = "Load external engine (append name)",
1008                           },
1009                 },
1010         },
1011         {
1012                 .name   = "iodepth",
1013                 .type   = FIO_OPT_INT,
1014                 .off1   = td_var_offset(iodepth),
1015                 .help   = "Number of IO buffers to keep in flight",
1016                 .minval = 1,
1017                 .def    = "1",
1018         },
1019         {
1020                 .name   = "iodepth_batch",
1021                 .alias  = "iodepth_batch_submit",
1022                 .type   = FIO_OPT_INT,
1023                 .off1   = td_var_offset(iodepth_batch),
1024                 .help   = "Number of IO buffers to submit in one go",
1025                 .parent = "iodepth",
1026                 .minval = 1,
1027                 .def    = "1",
1028         },
1029         {
1030                 .name   = "iodepth_batch_complete",
1031                 .type   = FIO_OPT_INT,
1032                 .off1   = td_var_offset(iodepth_batch_complete),
1033                 .help   = "Number of IO buffers to retrieve in one go",
1034                 .parent = "iodepth",
1035                 .minval = 0,
1036                 .def    = "1",
1037         },
1038         {
1039                 .name   = "iodepth_low",
1040                 .type   = FIO_OPT_INT,
1041                 .off1   = td_var_offset(iodepth_low),
1042                 .help   = "Low water mark for queuing depth",
1043                 .parent = "iodepth",
1044         },
1045         {
1046                 .name   = "size",
1047                 .type   = FIO_OPT_STR_VAL,
1048                 .cb     = str_size_cb,
1049                 .help   = "Total size of device or files",
1050         },
1051         {
1052                 .name   = "fill_device",
1053                 .alias  = "fill_fs",
1054                 .type   = FIO_OPT_BOOL,
1055                 .off1   = td_var_offset(fill_device),
1056                 .help   = "Write until an ENOSPC error occurs",
1057                 .def    = "0",
1058         },
1059         {
1060                 .name   = "filesize",
1061                 .type   = FIO_OPT_STR_VAL,
1062                 .off1   = td_var_offset(file_size_low),
1063                 .off2   = td_var_offset(file_size_high),
1064                 .minval = 1,
1065                 .help   = "Size of individual files",
1066         },
1067         {
1068                 .name   = "offset",
1069                 .alias  = "fileoffset",
1070                 .type   = FIO_OPT_STR_VAL,
1071                 .off1   = td_var_offset(start_offset),
1072                 .help   = "Start IO from this offset",
1073                 .def    = "0",
1074         },
1075         {
1076                 .name   = "bs",
1077                 .alias  = "blocksize",
1078                 .type   = FIO_OPT_INT,
1079                 .off1   = td_var_offset(bs[DDIR_READ]),
1080                 .off2   = td_var_offset(bs[DDIR_WRITE]),
1081                 .minval = 1,
1082                 .help   = "Block size unit",
1083                 .def    = "4k",
1084                 .parent = "rw",
1085         },
1086         {
1087                 .name   = "ba",
1088                 .alias  = "blockalign",
1089                 .type   = FIO_OPT_INT,
1090                 .off1   = td_var_offset(ba[DDIR_READ]),
1091                 .off2   = td_var_offset(ba[DDIR_WRITE]),
1092                 .minval = 1,
1093                 .help   = "IO block offset alignment",
1094                 .parent = "rw",
1095         },
1096         {
1097                 .name   = "bsrange",
1098                 .alias  = "blocksize_range",
1099                 .type   = FIO_OPT_RANGE,
1100                 .off1   = td_var_offset(min_bs[DDIR_READ]),
1101                 .off2   = td_var_offset(max_bs[DDIR_READ]),
1102                 .off3   = td_var_offset(min_bs[DDIR_WRITE]),
1103                 .off4   = td_var_offset(max_bs[DDIR_WRITE]),
1104                 .minval = 1,
1105                 .help   = "Set block size range (in more detail than bs)",
1106                 .parent = "rw",
1107         },
1108         {
1109                 .name   = "bssplit",
1110                 .type   = FIO_OPT_STR,
1111                 .cb     = str_bssplit_cb,
1112                 .help   = "Set a specific mix of block sizes",
1113                 .parent = "rw",
1114         },
1115         {
1116                 .name   = "bs_unaligned",
1117                 .alias  = "blocksize_unaligned",
1118                 .type   = FIO_OPT_STR_SET,
1119                 .off1   = td_var_offset(bs_unaligned),
1120                 .help   = "Don't sector align IO buffer sizes",
1121                 .parent = "rw",
1122         },
1123         {
1124                 .name   = "randrepeat",
1125                 .type   = FIO_OPT_BOOL,
1126                 .off1   = td_var_offset(rand_repeatable),
1127                 .help   = "Use repeatable random IO pattern",
1128                 .def    = "1",
1129                 .parent = "rw",
1130         },
1131         {
1132                 .name   = "use_os_rand",
1133                 .type   = FIO_OPT_BOOL,
1134                 .off1   = td_var_offset(use_os_rand),
1135                 .help   = "Set to use OS random generator",
1136                 .def    = "0",
1137                 .parent = "rw",
1138         },
1139         {
1140                 .name   = "norandommap",
1141                 .type   = FIO_OPT_STR_SET,
1142                 .off1   = td_var_offset(norandommap),
1143                 .help   = "Accept potential duplicate random blocks",
1144                 .parent = "rw",
1145         },
1146         {
1147                 .name   = "softrandommap",
1148                 .type   = FIO_OPT_BOOL,
1149                 .off1   = td_var_offset(softrandommap),
1150                 .help   = "Set norandommap if randommap allocation fails",
1151                 .parent = "norandommap",
1152                 .def    = "0",
1153         },
1154         {
1155                 .name   = "nrfiles",
1156                 .alias  = "nr_files",
1157                 .type   = FIO_OPT_INT,
1158                 .off1   = td_var_offset(nr_files),
1159                 .help   = "Split job workload between this number of files",
1160                 .def    = "1",
1161         },
1162         {
1163                 .name   = "openfiles",
1164                 .type   = FIO_OPT_INT,
1165                 .off1   = td_var_offset(open_files),
1166                 .help   = "Number of files to keep open at the same time",
1167         },
1168         {
1169                 .name   = "file_service_type",
1170                 .type   = FIO_OPT_STR,
1171                 .cb     = str_fst_cb,
1172                 .off1   = td_var_offset(file_service_type),
1173                 .help   = "How to select which file to service next",
1174                 .def    = "roundrobin",
1175                 .posval = {
1176                           { .ival = "random",
1177                             .oval = FIO_FSERVICE_RANDOM,
1178                             .help = "Choose a file at random",
1179                           },
1180                           { .ival = "roundrobin",
1181                             .oval = FIO_FSERVICE_RR,
1182                             .help = "Round robin select files",
1183                           },
1184                           { .ival = "sequential",
1185                             .oval = FIO_FSERVICE_SEQ,
1186                             .help = "Finish one file before moving to the next",
1187                           },
1188                 },
1189                 .parent = "nrfiles",
1190         },
1191 #ifdef FIO_HAVE_FALLOCATE
1192         {
1193                 .name   = "fallocate",
1194                 .type   = FIO_OPT_STR,
1195                 .off1   = td_var_offset(fallocate_mode),
1196                 .help   = "Whether pre-allocation is performed when laying out files",
1197                 .def    = "posix",
1198                 .posval = {
1199                           { .ival = "none",
1200                             .oval = FIO_FALLOCATE_NONE,
1201                             .help = "Do not pre-allocate space",
1202                           },
1203                           { .ival = "posix",
1204                             .oval = FIO_FALLOCATE_POSIX,
1205                             .help = "Use posix_fallocate()",
1206                           },
1207 #ifdef FIO_HAVE_LINUX_FALLOCATE
1208                           { .ival = "keep",
1209                             .oval = FIO_FALLOCATE_KEEP_SIZE,
1210                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1211                           },
1212 #endif
1213                           /* Compatibility with former boolean values */
1214                           { .ival = "0",
1215                             .oval = FIO_FALLOCATE_NONE,
1216                             .help = "Alias for 'none'",
1217                           },
1218                           { .ival = "1",
1219                             .oval = FIO_FALLOCATE_POSIX,
1220                             .help = "Alias for 'posix'",
1221                           },
1222                 },
1223         },
1224 #endif  /* FIO_HAVE_FALLOCATE */
1225         {
1226                 .name   = "fadvise_hint",
1227                 .type   = FIO_OPT_BOOL,
1228                 .off1   = td_var_offset(fadvise_hint),
1229                 .help   = "Use fadvise() to advise the kernel on IO pattern",
1230                 .def    = "1",
1231         },
1232         {
1233                 .name   = "fsync",
1234                 .type   = FIO_OPT_INT,
1235                 .off1   = td_var_offset(fsync_blocks),
1236                 .help   = "Issue fsync for writes every given number of blocks",
1237                 .def    = "0",
1238         },
1239         {
1240                 .name   = "fdatasync",
1241                 .type   = FIO_OPT_INT,
1242                 .off1   = td_var_offset(fdatasync_blocks),
1243                 .help   = "Issue fdatasync for writes every given number of blocks",
1244                 .def    = "0",
1245         },
1246         {
1247                 .name   = "write_barrier",
1248                 .type   = FIO_OPT_INT,
1249                 .off1   = td_var_offset(barrier_blocks),
1250                 .help   = "Make every Nth write a barrier write",
1251                 .def    = "0",
1252         },
1253 #ifdef FIO_HAVE_SYNC_FILE_RANGE
1254         {
1255                 .name   = "sync_file_range",
1256                 .posval = {
1257                           { .ival = "wait_before",
1258                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1259                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1260                             .or   = 1,
1261                           },
1262                           { .ival = "write",
1263                             .oval = SYNC_FILE_RANGE_WRITE,
1264                             .help = "SYNC_FILE_RANGE_WRITE",
1265                             .or   = 1,
1266                           },
1267                           {
1268                             .ival = "wait_after",
1269                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1270                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1271                             .or   = 1,
1272                           },
1273                 },
1274                 .type   = FIO_OPT_STR_MULTI,
1275                 .cb     = str_sfr_cb,
1276                 .off1   = td_var_offset(sync_file_range),
1277                 .help   = "Use sync_file_range()",
1278         },
1279 #endif
1280         {
1281                 .name   = "direct",
1282                 .type   = FIO_OPT_BOOL,
1283                 .off1   = td_var_offset(odirect),
1284                 .help   = "Use O_DIRECT IO (negates buffered)",
1285                 .def    = "0",
1286         },
1287         {
1288                 .name   = "buffered",
1289                 .type   = FIO_OPT_BOOL,
1290                 .off1   = td_var_offset(odirect),
1291                 .neg    = 1,
1292                 .help   = "Use buffered IO (negates direct)",
1293                 .def    = "1",
1294         },
1295         {
1296                 .name   = "overwrite",
1297                 .type   = FIO_OPT_BOOL,
1298                 .off1   = td_var_offset(overwrite),
1299                 .help   = "When writing, set whether to overwrite current data",
1300                 .def    = "0",
1301         },
1302         {
1303                 .name   = "loops",
1304                 .type   = FIO_OPT_INT,
1305                 .off1   = td_var_offset(loops),
1306                 .help   = "Number of times to run the job",
1307                 .def    = "1",
1308         },
1309         {
1310                 .name   = "numjobs",
1311                 .type   = FIO_OPT_INT,
1312                 .off1   = td_var_offset(numjobs),
1313                 .help   = "Duplicate this job this many times",
1314                 .def    = "1",
1315         },
1316         {
1317                 .name   = "startdelay",
1318                 .type   = FIO_OPT_STR_VAL_TIME,
1319                 .off1   = td_var_offset(start_delay),
1320                 .help   = "Only start job when this period has passed",
1321                 .def    = "0",
1322         },
1323         {
1324                 .name   = "runtime",
1325                 .alias  = "timeout",
1326                 .type   = FIO_OPT_STR_VAL_TIME,
1327                 .off1   = td_var_offset(timeout),
1328                 .help   = "Stop workload when this amount of time has passed",
1329                 .def    = "0",
1330         },
1331         {
1332                 .name   = "time_based",
1333                 .type   = FIO_OPT_STR_SET,
1334                 .off1   = td_var_offset(time_based),
1335                 .help   = "Keep running until runtime/timeout is met",
1336         },
1337         {
1338                 .name   = "ramp_time",
1339                 .type   = FIO_OPT_STR_VAL_TIME,
1340                 .off1   = td_var_offset(ramp_time),
1341                 .help   = "Ramp up time before measuring performance",
1342         },
1343         {
1344                 .name   = "clocksource",
1345                 .type   = FIO_OPT_STR,
1346                 .cb     = fio_clock_source_cb,
1347                 .off1   = td_var_offset(clocksource),
1348                 .help   = "What type of timing source to use",
1349                 .posval = {
1350                           { .ival = "gettimeofday",
1351                             .oval = CS_GTOD,
1352                             .help = "Use gettimeofday(2) for timing",
1353                           },
1354                           { .ival = "clock_gettime",
1355                             .oval = CS_CGETTIME,
1356                             .help = "Use clock_gettime(2) for timing",
1357                           },
1358 #ifdef ARCH_HAVE_CPU_CLOCK
1359                           { .ival = "cpu",
1360                             .oval = CS_CPUCLOCK,
1361                             .help = "Use CPU private clock",
1362                           },
1363 #endif
1364                 },
1365         },
1366         {
1367                 .name   = "mem",
1368                 .alias  = "iomem",
1369                 .type   = FIO_OPT_STR,
1370                 .cb     = str_mem_cb,
1371                 .off1   = td_var_offset(mem_type),
1372                 .help   = "Backing type for IO buffers",
1373                 .def    = "malloc",
1374                 .posval = {
1375                           { .ival = "malloc",
1376                             .oval = MEM_MALLOC,
1377                             .help = "Use malloc(3) for IO buffers",
1378                           },
1379                           { .ival = "shm",
1380                             .oval = MEM_SHM,
1381                             .help = "Use shared memory segments for IO buffers",
1382                           },
1383 #ifdef FIO_HAVE_HUGETLB
1384                           { .ival = "shmhuge",
1385                             .oval = MEM_SHMHUGE,
1386                             .help = "Like shm, but use huge pages",
1387                           },
1388 #endif
1389                           { .ival = "mmap",
1390                             .oval = MEM_MMAP,
1391                             .help = "Use mmap(2) (file or anon) for IO buffers",
1392                           },
1393 #ifdef FIO_HAVE_HUGETLB
1394                           { .ival = "mmaphuge",
1395                             .oval = MEM_MMAPHUGE,
1396                             .help = "Like mmap, but use huge pages",
1397                           },
1398 #endif
1399                   },
1400         },
1401         {
1402                 .name   = "iomem_align",
1403                 .alias  = "mem_align",
1404                 .type   = FIO_OPT_INT,
1405                 .off1   = td_var_offset(mem_align),
1406                 .minval = 0,
1407                 .help   = "IO memory buffer offset alignment",
1408                 .def    = "0",
1409                 .parent = "iomem",
1410         },
1411         {
1412                 .name   = "verify",
1413                 .type   = FIO_OPT_STR,
1414                 .off1   = td_var_offset(verify),
1415                 .help   = "Verify data written",
1416                 .cb     = str_verify_cb,
1417                 .def    = "0",
1418                 .posval = {
1419                           { .ival = "0",
1420                             .oval = VERIFY_NONE,
1421                             .help = "Don't do IO verification",
1422                           },
1423                           { .ival = "md5",
1424                             .oval = VERIFY_MD5,
1425                             .help = "Use md5 checksums for verification",
1426                           },
1427                           { .ival = "crc64",
1428                             .oval = VERIFY_CRC64,
1429                             .help = "Use crc64 checksums for verification",
1430                           },
1431                           { .ival = "crc32",
1432                             .oval = VERIFY_CRC32,
1433                             .help = "Use crc32 checksums for verification",
1434                           },
1435                           { .ival = "crc32c-intel",
1436                             .oval = VERIFY_CRC32C_INTEL,
1437                             .help = "Use hw crc32c checksums for verification",
1438                           },
1439                           { .ival = "crc32c",
1440                             .oval = VERIFY_CRC32C,
1441                             .help = "Use crc32c checksums for verification",
1442                           },
1443                           { .ival = "crc16",
1444                             .oval = VERIFY_CRC16,
1445                             .help = "Use crc16 checksums for verification",
1446                           },
1447                           { .ival = "crc7",
1448                             .oval = VERIFY_CRC7,
1449                             .help = "Use crc7 checksums for verification",
1450                           },
1451                           { .ival = "sha1",
1452                             .oval = VERIFY_SHA1,
1453                             .help = "Use sha1 checksums for verification",
1454                           },
1455                           { .ival = "sha256",
1456                             .oval = VERIFY_SHA256,
1457                             .help = "Use sha256 checksums for verification",
1458                           },
1459                           { .ival = "sha512",
1460                             .oval = VERIFY_SHA512,
1461                             .help = "Use sha512 checksums for verification",
1462                           },
1463                           { .ival = "meta",
1464                             .oval = VERIFY_META,
1465                             .help = "Use io information",
1466                           },
1467                           {
1468                             .ival = "null",
1469                             .oval = VERIFY_NULL,
1470                             .help = "Pretend to verify",
1471                           },
1472                 },
1473         },
1474         {
1475                 .name   = "do_verify",
1476                 .type   = FIO_OPT_BOOL,
1477                 .off1   = td_var_offset(do_verify),
1478                 .help   = "Run verification stage after write",
1479                 .def    = "1",
1480                 .parent = "verify",
1481         },
1482         {
1483                 .name   = "verifysort",
1484                 .type   = FIO_OPT_BOOL,
1485                 .off1   = td_var_offset(verifysort),
1486                 .help   = "Sort written verify blocks for read back",
1487                 .def    = "1",
1488                 .parent = "verify",
1489         },
1490         {
1491                 .name   = "verify_interval",
1492                 .type   = FIO_OPT_INT,
1493                 .off1   = td_var_offset(verify_interval),
1494                 .minval = 2 * sizeof(struct verify_header),
1495                 .help   = "Store verify buffer header every N bytes",
1496                 .parent = "verify",
1497         },
1498         {
1499                 .name   = "verify_offset",
1500                 .type   = FIO_OPT_INT,
1501                 .help   = "Offset verify header location by N bytes",
1502                 .def    = "0",
1503                 .cb     = str_verify_offset_cb,
1504                 .parent = "verify",
1505         },
1506         {
1507                 .name   = "verify_pattern",
1508                 .type   = FIO_OPT_STR,
1509                 .cb     = str_verify_pattern_cb,
1510                 .help   = "Fill pattern for IO buffers",
1511                 .parent = "verify",
1512         },
1513         {
1514                 .name   = "verify_fatal",
1515                 .type   = FIO_OPT_BOOL,
1516                 .off1   = td_var_offset(verify_fatal),
1517                 .def    = "0",
1518                 .help   = "Exit on a single verify failure, don't continue",
1519                 .parent = "verify",
1520         },
1521         {
1522                 .name   = "verify_dump",
1523                 .type   = FIO_OPT_BOOL,
1524                 .off1   = td_var_offset(verify_dump),
1525                 .def    = "1",
1526                 .help   = "Dump contents of good and bad blocks on failure",
1527                 .parent = "verify",
1528         },
1529         {
1530                 .name   = "verify_async",
1531                 .type   = FIO_OPT_INT,
1532                 .off1   = td_var_offset(verify_async),
1533                 .def    = "0",
1534                 .help   = "Number of async verifier threads to use",
1535                 .parent = "verify",
1536         },
1537         {
1538                 .name   = "verify_backlog",
1539                 .type   = FIO_OPT_STR_VAL,
1540                 .off1   = td_var_offset(verify_backlog),
1541                 .help   = "Verify after this number of blocks are written",
1542                 .parent = "verify",
1543         },
1544         {
1545                 .name   = "verify_backlog_batch",
1546                 .type   = FIO_OPT_INT,
1547                 .off1   = td_var_offset(verify_batch),
1548                 .help   = "Verify this number of IO blocks",
1549                 .parent = "verify",
1550         },
1551 #ifdef FIO_HAVE_CPU_AFFINITY
1552         {
1553                 .name   = "verify_async_cpus",
1554                 .type   = FIO_OPT_STR,
1555                 .cb     = str_verify_cpus_allowed_cb,
1556                 .help   = "Set CPUs allowed for async verify threads",
1557                 .parent = "verify_async",
1558         },
1559 #endif
1560 #ifdef FIO_HAVE_TRIM
1561         {
1562                 .name   = "trim_percentage",
1563                 .type   = FIO_OPT_INT,
1564                 .cb     = str_verify_trim_cb,
1565                 .maxval = 100,
1566                 .help   = "Number of verify blocks to discard/trim",
1567                 .parent = "verify",
1568                 .def    = "0",
1569         },
1570         {
1571                 .name   = "trim_verify_zero",
1572                 .type   = FIO_OPT_INT,
1573                 .help   = "Verify that trim/discarded blocks are returned as zeroes",
1574                 .off1   = td_var_offset(trim_zero),
1575                 .parent = "trim_percentage",
1576                 .def    = "1",
1577         },
1578         {
1579                 .name   = "trim_backlog",
1580                 .type   = FIO_OPT_STR_VAL,
1581                 .off1   = td_var_offset(trim_backlog),
1582                 .help   = "Trim after this number of blocks are written",
1583                 .parent = "trim_percentage",
1584         },
1585         {
1586                 .name   = "trim_backlog_batch",
1587                 .type   = FIO_OPT_INT,
1588                 .off1   = td_var_offset(trim_batch),
1589                 .help   = "Trim this number of IO blocks",
1590                 .parent = "trim_percentage",
1591         },
1592 #endif
1593         {
1594                 .name   = "write_iolog",
1595                 .type   = FIO_OPT_STR_STORE,
1596                 .off1   = td_var_offset(write_iolog_file),
1597                 .help   = "Store IO pattern to file",
1598         },
1599         {
1600                 .name   = "read_iolog",
1601                 .type   = FIO_OPT_STR_STORE,
1602                 .off1   = td_var_offset(read_iolog_file),
1603                 .help   = "Playback IO pattern from file",
1604         },
1605         {
1606                 .name   = "replay_no_stall",
1607                 .type   = FIO_OPT_INT,
1608                 .off1   = td_var_offset(no_stall),
1609                 .def    = "0",
1610                 .parent = "read_iolog",
1611                 .help   = "Playback IO pattern file as fast as possible without stalls",
1612         },
1613         {
1614                 .name   = "replay_redirect",
1615                 .type   = FIO_OPT_STR_STORE,
1616                 .off1   = td_var_offset(replay_redirect),
1617                 .parent = "read_iolog",
1618                 .help   = "Replay all I/O onto this device, regardless of trace device",
1619         },
1620         {
1621                 .name   = "exec_prerun",
1622                 .type   = FIO_OPT_STR_STORE,
1623                 .off1   = td_var_offset(exec_prerun),
1624                 .help   = "Execute this file prior to running job",
1625         },
1626         {
1627                 .name   = "exec_postrun",
1628                 .type   = FIO_OPT_STR_STORE,
1629                 .off1   = td_var_offset(exec_postrun),
1630                 .help   = "Execute this file after running job",
1631         },
1632 #ifdef FIO_HAVE_IOSCHED_SWITCH
1633         {
1634                 .name   = "ioscheduler",
1635                 .type   = FIO_OPT_STR_STORE,
1636                 .off1   = td_var_offset(ioscheduler),
1637                 .help   = "Use this IO scheduler on the backing device",
1638         },
1639 #endif
1640         {
1641                 .name   = "zonesize",
1642                 .type   = FIO_OPT_STR_VAL,
1643                 .off1   = td_var_offset(zone_size),
1644                 .help   = "Give size of an IO zone",
1645                 .def    = "0",
1646         },
1647         {
1648                 .name   = "zoneskip",
1649                 .type   = FIO_OPT_STR_VAL,
1650                 .off1   = td_var_offset(zone_skip),
1651                 .help   = "Space between IO zones",
1652                 .def    = "0",
1653         },
1654         {
1655                 .name   = "lockmem",
1656                 .type   = FIO_OPT_STR_VAL,
1657                 .cb     = str_lockmem_cb,
1658                 .help   = "Lock down this amount of memory",
1659                 .def    = "0",
1660         },
1661         {
1662                 .name   = "rwmixread",
1663                 .type   = FIO_OPT_INT,
1664                 .cb     = str_rwmix_read_cb,
1665                 .maxval = 100,
1666                 .help   = "Percentage of mixed workload that is reads",
1667                 .def    = "50",
1668         },
1669         {
1670                 .name   = "rwmixwrite",
1671                 .type   = FIO_OPT_INT,
1672                 .cb     = str_rwmix_write_cb,
1673                 .maxval = 100,
1674                 .help   = "Percentage of mixed workload that is writes",
1675                 .def    = "50",
1676         },
1677         {
1678                 .name   = "rwmixcycle",
1679                 .type   = FIO_OPT_DEPRECATED,
1680         },
1681         {
1682                 .name   = "nice",
1683                 .type   = FIO_OPT_INT,
1684                 .off1   = td_var_offset(nice),
1685                 .help   = "Set job CPU nice value",
1686                 .minval = -19,
1687                 .maxval = 20,
1688                 .def    = "0",
1689         },
1690 #ifdef FIO_HAVE_IOPRIO
1691         {
1692                 .name   = "prio",
1693                 .type   = FIO_OPT_INT,
1694                 .cb     = str_prio_cb,
1695                 .help   = "Set job IO priority value",
1696                 .minval = 0,
1697                 .maxval = 7,
1698         },
1699         {
1700                 .name   = "prioclass",
1701                 .type   = FIO_OPT_INT,
1702                 .cb     = str_prioclass_cb,
1703                 .help   = "Set job IO priority class",
1704                 .minval = 0,
1705                 .maxval = 3,
1706         },
1707 #endif
1708         {
1709                 .name   = "thinktime",
1710                 .type   = FIO_OPT_INT,
1711                 .off1   = td_var_offset(thinktime),
1712                 .help   = "Idle time between IO buffers (usec)",
1713                 .def    = "0",
1714         },
1715         {
1716                 .name   = "thinktime_spin",
1717                 .type   = FIO_OPT_INT,
1718                 .off1   = td_var_offset(thinktime_spin),
1719                 .help   = "Start think time by spinning this amount (usec)",
1720                 .def    = "0",
1721                 .parent = "thinktime",
1722         },
1723         {
1724                 .name   = "thinktime_blocks",
1725                 .type   = FIO_OPT_INT,
1726                 .off1   = td_var_offset(thinktime_blocks),
1727                 .help   = "IO buffer period between 'thinktime'",
1728                 .def    = "1",
1729                 .parent = "thinktime",
1730         },
1731         {
1732                 .name   = "rate",
1733                 .type   = FIO_OPT_INT,
1734                 .off1   = td_var_offset(rate[0]),
1735                 .off2   = td_var_offset(rate[1]),
1736                 .help   = "Set bandwidth rate",
1737         },
1738         {
1739                 .name   = "ratemin",
1740                 .type   = FIO_OPT_INT,
1741                 .off1   = td_var_offset(ratemin[0]),
1742                 .off2   = td_var_offset(ratemin[1]),
1743                 .help   = "Job must meet this rate or it will be shutdown",
1744                 .parent = "rate",
1745         },
1746         {
1747                 .name   = "rate_iops",
1748                 .type   = FIO_OPT_INT,
1749                 .off1   = td_var_offset(rate_iops[0]),
1750                 .off2   = td_var_offset(rate_iops[1]),
1751                 .help   = "Limit IO used to this number of IO operations/sec",
1752         },
1753         {
1754                 .name   = "rate_iops_min",
1755                 .type   = FIO_OPT_INT,
1756                 .off1   = td_var_offset(rate_iops_min[0]),
1757                 .off2   = td_var_offset(rate_iops_min[1]),
1758                 .help   = "Job must meet this rate or it will be shut down",
1759                 .parent = "rate_iops",
1760         },
1761         {
1762                 .name   = "ratecycle",
1763                 .type   = FIO_OPT_INT,
1764                 .off1   = td_var_offset(ratecycle),
1765                 .help   = "Window average for rate limits (msec)",
1766                 .def    = "1000",
1767                 .parent = "rate",
1768         },
1769         {
1770                 .name   = "invalidate",
1771                 .type   = FIO_OPT_BOOL,
1772                 .off1   = td_var_offset(invalidate_cache),
1773                 .help   = "Invalidate buffer/page cache prior to running job",
1774                 .def    = "1",
1775         },
1776         {
1777                 .name   = "sync",
1778                 .type   = FIO_OPT_BOOL,
1779                 .off1   = td_var_offset(sync_io),
1780                 .help   = "Use O_SYNC for buffered writes",
1781                 .def    = "0",
1782                 .parent = "buffered",
1783         },
1784         {
1785                 .name   = "bwavgtime",
1786                 .type   = FIO_OPT_INT,
1787                 .off1   = td_var_offset(bw_avg_time),
1788                 .help   = "Time window over which to calculate bandwidth"
1789                           " (msec)",
1790                 .def    = "500",
1791         },
1792         {
1793                 .name   = "create_serialize",
1794                 .type   = FIO_OPT_BOOL,
1795                 .off1   = td_var_offset(create_serialize),
1796                 .help   = "Serialize creating of job files",
1797                 .def    = "1",
1798         },
1799         {
1800                 .name   = "create_fsync",
1801                 .type   = FIO_OPT_BOOL,
1802                 .off1   = td_var_offset(create_fsync),
1803                 .help   = "fsync file after creation",
1804                 .def    = "1",
1805         },
1806         {
1807                 .name   = "create_on_open",
1808                 .type   = FIO_OPT_BOOL,
1809                 .off1   = td_var_offset(create_on_open),
1810                 .help   = "Create files when they are opened for IO",
1811                 .def    = "0",
1812         },
1813         {
1814                 .name   = "pre_read",
1815                 .type   = FIO_OPT_BOOL,
1816                 .off1   = td_var_offset(pre_read),
1817                 .help   = "Pre-read files before starting official testing",
1818                 .def    = "0",
1819         },
1820         {
1821                 .name   = "cpuload",
1822                 .type   = FIO_OPT_INT,
1823                 .off1   = td_var_offset(cpuload),
1824                 .help   = "Use this percentage of CPU",
1825         },
1826         {
1827                 .name   = "cpuchunks",
1828                 .type   = FIO_OPT_INT,
1829                 .off1   = td_var_offset(cpucycle),
1830                 .help   = "Length of the CPU burn cycles (usecs)",
1831                 .def    = "50000",
1832                 .parent = "cpuload",
1833         },
1834 #ifdef FIO_HAVE_CPU_AFFINITY
1835         {
1836                 .name   = "cpumask",
1837                 .type   = FIO_OPT_INT,
1838                 .cb     = str_cpumask_cb,
1839                 .help   = "CPU affinity mask",
1840         },
1841         {
1842                 .name   = "cpus_allowed",
1843                 .type   = FIO_OPT_STR,
1844                 .cb     = str_cpus_allowed_cb,
1845                 .help   = "Set CPUs allowed",
1846         },
1847 #endif
1848         {
1849                 .name   = "end_fsync",
1850                 .type   = FIO_OPT_BOOL,
1851                 .off1   = td_var_offset(end_fsync),
1852                 .help   = "Include fsync at the end of job",
1853                 .def    = "0",
1854         },
1855         {
1856                 .name   = "fsync_on_close",
1857                 .type   = FIO_OPT_BOOL,
1858                 .off1   = td_var_offset(fsync_on_close),
1859                 .help   = "fsync files on close",
1860                 .def    = "0",
1861         },
1862         {
1863                 .name   = "unlink",
1864                 .type   = FIO_OPT_BOOL,
1865                 .off1   = td_var_offset(unlink),
1866                 .help   = "Unlink created files after job has completed",
1867                 .def    = "0",
1868         },
1869         {
1870                 .name   = "exitall",
1871                 .type   = FIO_OPT_STR_SET,
1872                 .cb     = str_exitall_cb,
1873                 .help   = "Terminate all jobs when one exits",
1874         },
1875         {
1876                 .name   = "stonewall",
1877                 .type   = FIO_OPT_STR_SET,
1878                 .off1   = td_var_offset(stonewall),
1879                 .help   = "Insert a hard barrier between this job and previous",
1880         },
1881         {
1882                 .name   = "new_group",
1883                 .type   = FIO_OPT_STR_SET,
1884                 .off1   = td_var_offset(new_group),
1885                 .help   = "Mark the start of a new group (for reporting)",
1886         },
1887         {
1888                 .name   = "thread",
1889                 .type   = FIO_OPT_STR_SET,
1890                 .off1   = td_var_offset(use_thread),
1891                 .help   = "Use threads instead of forks",
1892         },
1893         {
1894                 .name   = "write_bw_log",
1895                 .type   = FIO_OPT_STR,
1896                 .off1   = td_var_offset(write_bw_log),
1897                 .cb     = str_write_bw_log_cb,
1898                 .help   = "Write log of bandwidth during run",
1899         },
1900         {
1901                 .name   = "write_lat_log",
1902                 .type   = FIO_OPT_STR,
1903                 .off1   = td_var_offset(write_lat_log),
1904                 .cb     = str_write_lat_log_cb,
1905                 .help   = "Write log of latency during run",
1906         },
1907         {
1908                 .name   = "hugepage-size",
1909                 .type   = FIO_OPT_INT,
1910                 .off1   = td_var_offset(hugepage_size),
1911                 .help   = "When using hugepages, specify size of each page",
1912                 .def    = __stringify(FIO_HUGE_PAGE),
1913         },
1914         {
1915                 .name   = "group_reporting",
1916                 .type   = FIO_OPT_STR_SET,
1917                 .off1   = td_var_offset(group_reporting),
1918                 .help   = "Do reporting on a per-group basis",
1919         },
1920         {
1921                 .name   = "zero_buffers",
1922                 .type   = FIO_OPT_STR_SET,
1923                 .off1   = td_var_offset(zero_buffers),
1924                 .help   = "Init IO buffers to all zeroes",
1925         },
1926         {
1927                 .name   = "refill_buffers",
1928                 .type   = FIO_OPT_STR_SET,
1929                 .off1   = td_var_offset(refill_buffers),
1930                 .help   = "Refill IO buffers on every IO submit",
1931         },
1932 #ifdef FIO_HAVE_DISK_UTIL
1933         {
1934                 .name   = "disk_util",
1935                 .type   = FIO_OPT_BOOL,
1936                 .off1   = td_var_offset(do_disk_util),
1937                 .help   = "Log disk utilization statistics",
1938                 .def    = "1",
1939         },
1940 #endif
1941         {
1942                 .name   = "gtod_reduce",
1943                 .type   = FIO_OPT_BOOL,
1944                 .help   = "Greatly reduce number of gettimeofday() calls",
1945                 .cb     = str_gtod_reduce_cb,
1946                 .def    = "0",
1947         },
1948         {
1949                 .name   = "disable_lat",
1950                 .type   = FIO_OPT_BOOL,
1951                 .off1   = td_var_offset(disable_lat),
1952                 .help   = "Disable latency numbers",
1953                 .parent = "gtod_reduce",
1954                 .def    = "0",
1955         },
1956         {
1957                 .name   = "disable_clat",
1958                 .type   = FIO_OPT_BOOL,
1959                 .off1   = td_var_offset(disable_clat),
1960                 .help   = "Disable completion latency numbers",
1961                 .parent = "gtod_reduce",
1962                 .def    = "0",
1963         },
1964         {
1965                 .name   = "disable_slat",
1966                 .type   = FIO_OPT_BOOL,
1967                 .off1   = td_var_offset(disable_slat),
1968                 .help   = "Disable submission latency numbers",
1969                 .parent = "gtod_reduce",
1970                 .def    = "0",
1971         },
1972         {
1973                 .name   = "disable_bw_measurement",
1974                 .type   = FIO_OPT_BOOL,
1975                 .off1   = td_var_offset(disable_bw),
1976                 .help   = "Disable bandwidth logging",
1977                 .parent = "gtod_reduce",
1978                 .def    = "0",
1979         },
1980         {
1981                 .name   = "gtod_cpu",
1982                 .type   = FIO_OPT_INT,
1983                 .cb     = str_gtod_cpu_cb,
1984                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
1985                 .verify = gtod_cpu_verify,
1986         },
1987         {
1988                 .name   = "continue_on_error",
1989                 .type   = FIO_OPT_BOOL,
1990                 .off1   = td_var_offset(continue_on_error),
1991                 .help   = "Continue on non-fatal errors during IO",
1992                 .def    = "0",
1993         },
1994         {
1995                 .name   = "profile",
1996                 .type   = FIO_OPT_STR_STORE,
1997                 .off1   = td_var_offset(profile),
1998                 .help   = "Select a specific builtin performance test",
1999         },
2000         {
2001                 .name   = "cgroup",
2002                 .type   = FIO_OPT_STR_STORE,
2003                 .off1   = td_var_offset(cgroup),
2004                 .help   = "Add job to cgroup of this name",
2005         },
2006         {
2007                 .name   = "cgroup_weight",
2008                 .type   = FIO_OPT_INT,
2009                 .off1   = td_var_offset(cgroup_weight),
2010                 .help   = "Use given weight for cgroup",
2011                 .minval = 100,
2012                 .maxval = 1000,
2013         },
2014         {
2015                 .name   = "cgroup_nodelete",
2016                 .type   = FIO_OPT_BOOL,
2017                 .off1   = td_var_offset(cgroup_nodelete),
2018                 .help   = "Do not delete cgroups after job completion",
2019                 .def    = "0",
2020         },
2021         {
2022                 .name   = "uid",
2023                 .type   = FIO_OPT_INT,
2024                 .off1   = td_var_offset(uid),
2025                 .help   = "Run job with this user ID",
2026         },
2027         {
2028                 .name   = "gid",
2029                 .type   = FIO_OPT_INT,
2030                 .off1   = td_var_offset(gid),
2031                 .help   = "Run job with this group ID",
2032         },
2033         {
2034                 .name = NULL,
2035         },
2036 };
2037
2038 static void add_to_lopt(struct option *lopt, struct fio_option *o,
2039                         const char *name)
2040 {
2041         lopt->name = (char *) name;
2042         lopt->val = FIO_GETOPT_JOB;
2043         if (o->type == FIO_OPT_STR_SET)
2044                 lopt->has_arg = no_argument;
2045         else
2046                 lopt->has_arg = required_argument;
2047 }
2048
2049 void fio_options_dup_and_init(struct option *long_options)
2050 {
2051         struct fio_option *o;
2052         unsigned int i;
2053
2054         options_init(options);
2055
2056         i = 0;
2057         while (long_options[i].name)
2058                 i++;
2059
2060         o = &options[0];
2061         while (o->name) {
2062                 add_to_lopt(&long_options[i], o, o->name);
2063                 if (o->alias) {
2064                         i++;
2065                         add_to_lopt(&long_options[i], o, o->alias);
2066                 }
2067
2068                 i++;
2069                 o++;
2070                 assert(i < FIO_NR_OPTIONS);
2071         }
2072 }
2073
2074 struct fio_keyword {
2075         const char *word;
2076         const char *desc;
2077         char *replace;
2078 };
2079
2080 static struct fio_keyword fio_keywords[] = {
2081         {
2082                 .word   = "$pagesize",
2083                 .desc   = "Page size in the system",
2084         },
2085         {
2086                 .word   = "$mb_memory",
2087                 .desc   = "Megabytes of memory online",
2088         },
2089         {
2090                 .word   = "$ncpus",
2091                 .desc   = "Number of CPUs online in the system",
2092         },
2093         {
2094                 .word   = NULL,
2095         },
2096 };
2097
2098 void fio_keywords_init(void)
2099 {
2100         unsigned long long mb_memory;
2101         char buf[128];
2102         long l;
2103
2104         sprintf(buf, "%lu", page_size);
2105         fio_keywords[0].replace = strdup(buf);
2106
2107         mb_memory = os_phys_mem() / (1024 * 1024);
2108         sprintf(buf, "%llu", mb_memory);
2109         fio_keywords[1].replace = strdup(buf);
2110
2111         l = cpus_online();
2112         sprintf(buf, "%lu", l);
2113         fio_keywords[2].replace = strdup(buf);
2114 }
2115
2116 #define BC_APP          "bc"
2117
2118 static char *bc_calc(char *str)
2119 {
2120         char *buf, *tmp, opt[80];
2121         FILE *f;
2122         int ret;
2123
2124         /*
2125          * No math, just return string
2126          */
2127         if (!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
2128             !strchr(str, '/'))
2129                 return str;
2130
2131         /*
2132          * Split option from value, we only need to calculate the value
2133          */
2134         tmp = strchr(str, '=');
2135         if (!tmp)
2136                 return str;
2137
2138         tmp++;
2139         memset(opt, 0, sizeof(opt));
2140         strncpy(opt, str, tmp - str);
2141
2142         buf = malloc(128);
2143
2144         sprintf(buf, "which %s > /dev/null", BC_APP);
2145         if (system(buf)) {
2146                 log_err("fio: bc is needed for performing math\n");
2147                 free(buf);
2148                 return NULL;
2149         }
2150
2151         sprintf(buf, "echo %s | %s", tmp, BC_APP);
2152         f = popen(buf, "r");
2153         if (!f) {
2154                 free(buf);
2155                 return NULL;
2156         }
2157
2158         ret = fread(buf, 1, 128, f);
2159         if (ret <= 0) {
2160                 free(buf);
2161                 return NULL;
2162         }
2163
2164         buf[ret - 1] = '\0';
2165         strcat(opt, buf);
2166         strcpy(buf, opt);
2167         pclose(f);
2168         free(str);
2169         return buf;
2170 }
2171
2172 /*
2173  * Look for reserved variable names and replace them with real values
2174  */
2175 static char *fio_keyword_replace(char *opt)
2176 {
2177         char *s;
2178         int i;
2179
2180         for (i = 0; fio_keywords[i].word != NULL; i++) {
2181                 struct fio_keyword *kw = &fio_keywords[i];
2182
2183                 while ((s = strstr(opt, kw->word)) != NULL) {
2184                         char *new = malloc(strlen(opt) + 1);
2185                         char *o_org = opt;
2186                         int olen = s - opt;
2187                         int len;
2188
2189                         /*
2190                          * Copy part of the string before the keyword and
2191                          * sprintf() the replacement after it.
2192                          */
2193                         memcpy(new, opt, olen);
2194                         len = sprintf(new + olen, "%s", kw->replace);
2195
2196                         /*
2197                          * If there's more in the original string, copy that
2198                          * in too
2199                          */
2200                         opt += strlen(kw->word) + olen;
2201                         if (strlen(opt))
2202                                 memcpy(new + olen + len, opt, opt - o_org - 1);
2203
2204                         /*
2205                          * replace opt and free the old opt
2206                          */
2207                         opt = new;
2208                         //free(o_org);
2209
2210                         /*
2211                          * Check for potential math and invoke bc, if possible
2212                          */
2213                         opt = bc_calc(opt);
2214                 }
2215         }
2216
2217         return opt;
2218 }
2219
2220 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
2221 {
2222         int i, ret;
2223
2224         sort_options(opts, options, num_opts);
2225
2226         for (ret = 0, i = 0; i < num_opts; i++) {
2227                 opts[i] = fio_keyword_replace(opts[i]);
2228                 ret |= parse_option(opts[i], options, td);
2229         }
2230
2231         return ret;
2232 }
2233
2234 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
2235 {
2236         return parse_cmd_option(opt, val, options, td);
2237 }
2238
2239 void fio_fill_default_options(struct thread_data *td)
2240 {
2241         fill_default_options(td, options);
2242 }
2243
2244 int fio_show_option_help(const char *opt)
2245 {
2246         return show_cmd_help(options, opt);
2247 }
2248
2249 static void __options_mem(struct thread_data *td, int alloc)
2250 {
2251         struct thread_options *o = &td->o;
2252         struct fio_option *opt;
2253         char **ptr;
2254         int i;
2255
2256         for (i = 0, opt = &options[0]; opt->name; i++, opt = &options[i]) {
2257                 if (opt->type != FIO_OPT_STR_STORE)
2258                         continue;
2259
2260                 ptr = (void *) o + opt->off1;
2261                 if (*ptr) {
2262                         if (alloc)
2263                                 *ptr = strdup(*ptr);
2264                         else {
2265                                 free(*ptr);
2266                                 *ptr = NULL;
2267                         }
2268                 }
2269         }
2270 }
2271
2272 /*
2273  * dupe FIO_OPT_STR_STORE options
2274  */
2275 void options_mem_dupe(struct thread_data *td)
2276 {
2277         __options_mem(td, 1);
2278 }
2279
2280 void options_mem_free(struct thread_data fio_unused *td)
2281 {
2282 #if 0
2283         __options_mem(td, 0);
2284 #endif
2285 }
2286
2287 unsigned int fio_get_kb_base(void *data)
2288 {
2289         struct thread_data *td = data;
2290         unsigned int kb_base = 0;
2291
2292         if (td)
2293                 kb_base = td->o.kb_base;
2294         if (!kb_base)
2295                 kb_base = 1024;
2296
2297         return kb_base;
2298 }
2299
2300 int add_option(struct fio_option *o)
2301 {
2302         struct fio_option *__o;
2303         int opt_index = 0;
2304
2305         __o = options;
2306         while (__o->name) {
2307                 opt_index++;
2308                 __o++;
2309         }
2310
2311         memcpy(&options[opt_index], o, sizeof(*o));
2312         return 0;
2313 }
2314
2315 void invalidate_profile_options(const char *prof_name)
2316 {
2317         struct fio_option *o;
2318
2319         o = options;
2320         while (o->name) {
2321                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
2322                         o->type = FIO_OPT_INVALID;
2323                         o->prof_name = NULL;
2324                 }
2325                 o++;
2326         }
2327 }
2328
2329 void add_opt_posval(const char *optname, const char *ival, const char *help)
2330 {
2331         struct fio_option *o;
2332         unsigned int i;
2333
2334         o = find_option(options, optname);
2335         if (!o)
2336                 return;
2337
2338         for (i = 0; i < PARSE_MAX_VP; i++) {
2339                 if (o->posval[i].ival)
2340                         continue;
2341
2342                 o->posval[i].ival = ival;
2343                 o->posval[i].help = help;
2344                 break;
2345         }
2346 }
2347
2348 void del_opt_posval(const char *optname, const char *ival)
2349 {
2350         struct fio_option *o;
2351         unsigned int i;
2352
2353         o = find_option(options, optname);
2354         if (!o)
2355                 return;
2356
2357         for (i = 0; i < PARSE_MAX_VP; i++) {
2358                 if (!o->posval[i].ival)
2359                         continue;
2360                 if (strcmp(o->posval[i].ival, ival))
2361                         continue;
2362
2363                 o->posval[i].ival = NULL;
2364                 o->posval[i].help = NULL;
2365         }
2366 }