options.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <ctype.h>
   5 #include <string.h>
   6 #include <getopt.h>
   7 #include <assert.h>
   8 #include <libgen.h>
   9 #include <fcntl.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12
  13 #include "fio.h"
  14 #include "parse.h"
  15 #include "lib/fls.h"
  16
  17 #define td_var_offset(var)      ((size_t) &((struct thread_options *)0)->var)
  18
  19 /*
  20  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  21  */
  22 static char *get_opt_postfix(const char *str)
  23 {
  24         char *p = strstr(str, ":");
  25
  26         if (!p)
  27                 return NULL;
  28
  29         p++;
  30         strip_blank_front(&p);
  31         strip_blank_end(p);
  32         return strdup(p);
  33 }
  34
  35 static int bs_cmp(const void *p1, const void *p2)
  36 {
  37         const struct bssplit *bsp1 = p1;
  38         const struct bssplit *bsp2 = p2;
  39
  40         return bsp1->perc < bsp2->perc;
  41 }
  42
  43 static int str_bssplit_cb(void *data, const char *input)
  44 {
  45         struct thread_data *td = data;
  46         char *fname, *str, *p;
  47         unsigned int i, perc, perc_missing;
  48         unsigned int max_bs, min_bs;
  49         long long val;
  50
  51         p = str = strdup(input);
  52
  53         strip_blank_front(&str);
  54         strip_blank_end(str);
  55
  56         td->o.bssplit_nr = 4;
  57         td->o.bssplit = malloc(4 * sizeof(struct bssplit));
  58
  59         i = 0;
  60         max_bs = 0;
  61         min_bs = -1;
  62         while ((fname = strsep(&str, ":")) != NULL) {
  63                 char *perc_str;
  64
  65                 if (!strlen(fname))
  66                         break;
  67
  68                 /*
  69                  * grow struct buffer, if needed
  70                  */
  71                 if (i == td->o.bssplit_nr) {
  72                         td->o.bssplit_nr <<= 1;
  73                         td->o.bssplit = realloc(td->o.bssplit,
  74                                                 td->o.bssplit_nr
  75                                                   * sizeof(struct bssplit));
  76                 }
  77
  78                 perc_str = strstr(fname, "/");
  79                 if (perc_str) {
  80                         *perc_str = '\0';
  81                         perc_str++;
  82                         perc = atoi(perc_str);
  83                         if (perc > 100)
  84                                 perc = 100;
  85                         else if (!perc)
  86                                 perc = -1;
  87                 } else
  88                         perc = -1;
  89
  90                 if (str_to_decimal(fname, &val, 1)) {
  91                         log_err("fio: bssplit conversion failed\n");
  92                         free(td->o.bssplit);
  93                         return 1;
  94                 }
  95
  96                 if (val > max_bs)
  97                         max_bs = val;
  98                 if (val < min_bs)
  99                         min_bs = val;
 100
 101                 td->o.bssplit[i].bs = val;
 102                 td->o.bssplit[i].perc = perc;
 103                 i++;
 104         }
 105
 106         td->o.bssplit_nr = i;
 107
 108         /*
 109          * Now check if the percentages add up, and how much is missing
 110          */
 111         perc = perc_missing = 0;
 112         for (i = 0; i < td->o.bssplit_nr; i++) {
 113                 struct bssplit *bsp = &td->o.bssplit[i];
 114
 115                 if (bsp->perc == (unsigned char) -1)
 116                         perc_missing++;
 117                 else
 118                         perc += bsp->perc;
 119         }
 120
 121         if (perc > 100) {
 122                 log_err("fio: bssplit percentages add to more than 100%%\n");
 123                 free(td->o.bssplit);
 124                 return 1;
 125         }
 126         /*
 127          * If values didn't have a percentage set, divide the remains between
 128          * them.
 129          */
 130         if (perc_missing) {
 131                 for (i = 0; i < td->o.bssplit_nr; i++) {
 132                         struct bssplit *bsp = &td->o.bssplit[i];
 133
 134                         if (bsp->perc == (unsigned char) -1)
 135                                 bsp->perc = (100 - perc) / perc_missing;
 136                 }
 137         }
 138
 139         td->o.min_bs[DDIR_READ] = td->o.min_bs[DDIR_WRITE] = min_bs;
 140         td->o.max_bs[DDIR_READ] = td->o.max_bs[DDIR_WRITE] = max_bs;
 141
 142         /*
 143          * now sort based on percentages, for ease of lookup
 144          */
 145         qsort(td->o.bssplit, td->o.bssplit_nr, sizeof(struct bssplit), bs_cmp);
 146
 147         free(p);
 148         return 0;
 149 }
 150
 151 static int str_rw_cb(void *data, const char *str)
 152 {
 153         struct thread_data *td = data;
 154         char *nr = get_opt_postfix(str);
 155
 156         td->o.ddir_nr = 1;
 157         if (nr) {
 158                 td->o.ddir_nr = atoi(nr);
 159                 free(nr);
 160         }
 161
 162         return 0;
 163 }
 164
 165 static int str_mem_cb(void *data, const char *mem)
 166 {
 167         struct thread_data *td = data;
 168
 169         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
 170                 td->mmapfile = get_opt_postfix(mem);
 171                 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
 172                         log_err("fio: mmaphuge:/path/to/file\n");
 173                         return 1;
 174                 }
 175         }
 176
 177         return 0;
 178 }
 179
 180 static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
 181 {
 182         mlock_size = *val;
 183         return 0;
 184 }
 185
 186 static int str_rwmix_read_cb(void *data, unsigned int *val)
 187 {
 188         struct thread_data *td = data;
 189
 190         td->o.rwmix[DDIR_READ] = *val;
 191         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 192         return 0;
 193 }
 194
 195 static int str_rwmix_write_cb(void *data, unsigned int *val)
 196 {
 197         struct thread_data *td = data;
 198
 199         td->o.rwmix[DDIR_WRITE] = *val;
 200         td->o.rwmix[DDIR_READ] = 100 - *val;
 201         return 0;
 202 }
 203
 204 #ifdef FIO_HAVE_IOPRIO
 205 static int str_prioclass_cb(void *data, unsigned int *val)
 206 {
 207         struct thread_data *td = data;
 208         unsigned short mask;
 209
 210         /*
 211          * mask off old class bits, str_prio_cb() may have set a default class
 212          */
 213         mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
 214         td->ioprio &= mask;
 215
 216         td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
 217         td->ioprio_set = 1;
 218         return 0;
 219 }
 220
 221 static int str_prio_cb(void *data, unsigned int *val)
 222 {
 223         struct thread_data *td = data;
 224
 225         td->ioprio |= *val;
 226
 227         /*
 228          * If no class is set, assume BE
 229          */
 230         if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
 231                 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
 232
 233         td->ioprio_set = 1;
 234         return 0;
 235 }
 236 #endif
 237
 238 static int str_exitall_cb(void)
 239 {
 240         exitall_on_terminate = 1;
 241         return 0;
 242 }
 243
 244 #ifdef FIO_HAVE_CPU_AFFINITY
 245 static int str_cpumask_cb(void *data, unsigned int *val)
 246 {
 247         struct thread_data *td = data;
 248         unsigned int i;
 249         long max_cpu;
 250
 251         fio_cpuset_init(td);
 252         max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
 253
 254         for (i = 0; i < sizeof(int) * 8; i++) {
 255                 if ((1 << i) & *val) {
 256                         if (i > max_cpu) {
 257                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 258                                                                 max_cpu);
 259                                 return 1;
 260                         }
 261                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 262                         fio_cpu_set(&td->o.cpumask, i);
 263                 }
 264         }
 265
 266         td->o.cpumask_set = 1;
 267         return 0;
 268 }
 269
 270 static int str_cpus_allowed_cb(void *data, const char *input)
 271 {
 272         struct thread_data *td = data;
 273         char *cpu, *str, *p;
 274         long max_cpu;
 275         int ret = 0;
 276
 277         fio_cpuset_init(td);
 278
 279         p = str = strdup(input);
 280
 281         strip_blank_front(&str);
 282         strip_blank_end(str);
 283
 284         max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
 285
 286         while ((cpu = strsep(&str, ",")) != NULL) {
 287                 char *str2, *cpu2;
 288                 int icpu, icpu2;
 289
 290                 if (!strlen(cpu))
 291                         break;
 292
 293                 str2 = cpu;
 294                 icpu2 = -1;
 295                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 296                         if (!strlen(cpu2))
 297                                 break;
 298
 299                         icpu2 = atoi(cpu2);
 300                 }
 301
 302                 icpu = atoi(cpu);
 303                 if (icpu2 == -1)
 304                         icpu2 = icpu;
 305                 while (icpu <= icpu2) {
 306                         if (icpu >= FIO_MAX_CPUS) {
 307                                 log_err("fio: your OS only supports up to"
 308                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 309                                 ret = 1;
 310                                 break;
 311                         }
 312                         if (icpu > max_cpu) {
 313                                 log_err("fio: CPU %d too large (max=%ld)\n",
 314                                                         icpu, max_cpu);
 315                                 ret = 1;
 316                                 break;
 317                         }
 318
 319                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 320                         fio_cpu_set(&td->o.cpumask, icpu);
 321                         icpu++;
 322                 }
 323                 if (ret)
 324                         break;
 325         }
 326
 327         free(p);
 328         if (!ret)
 329                 td->o.cpumask_set = 1;
 330         return ret;
 331 }
 332 #endif
 333
 334 static int str_fst_cb(void *data, const char *str)
 335 {
 336         struct thread_data *td = data;
 337         char *nr = get_opt_postfix(str);
 338
 339         td->file_service_nr = 1;
 340         if (nr) {
 341                 td->file_service_nr = atoi(nr);
 342                 free(nr);
 343         }
 344
 345         return 0;
 346 }
 347
 348 static int check_dir(struct thread_data *td, char *fname)
 349 {
 350         char file[PATH_MAX], *dir;
 351         int elen = 0;
 352
 353         if (td->o.directory) {
 354                 strcpy(file, td->o.directory);
 355                 strcat(file, "/");
 356                 elen = strlen(file);
 357         }
 358
 359         sprintf(file + elen, "%s", fname);
 360         dir = dirname(file);
 361
 362 #if 0
 363         {
 364         struct stat sb;
 365         /*
 366          * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
 367          * yet, so we can't do this check right here...
 368          */
 369         if (lstat(dir, &sb) < 0) {
 370                 int ret = errno;
 371
 372                 log_err("fio: %s is not a directory\n", dir);
 373                 td_verror(td, ret, "lstat");
 374                 return 1;
 375         }
 376
 377         if (!S_ISDIR(sb.st_mode)) {
 378                 log_err("fio: %s is not a directory\n", dir);
 379                 return 1;
 380         }
 381         }
 382 #endif
 383
 384         return 0;
 385 }
 386
 387 static int str_filename_cb(void *data, const char *input)
 388 {
 389         struct thread_data *td = data;
 390         char *fname, *str, *p;
 391
 392         p = str = strdup(input);
 393
 394         strip_blank_front(&str);
 395         strip_blank_end(str);
 396
 397         if (!td->files_index)
 398                 td->o.nr_files = 0;
 399
 400         while ((fname = strsep(&str, ":")) != NULL) {
 401                 if (!strlen(fname))
 402                         break;
 403                 if (check_dir(td, fname)) {
 404                         free(p);
 405                         return 1;
 406                 }
 407                 add_file(td, fname);
 408                 td->o.nr_files++;
 409         }
 410
 411         free(p);
 412         return 0;
 413 }
 414
 415 static int str_directory_cb(void *data, const char fio_unused *str)
 416 {
 417         struct thread_data *td = data;
 418         struct stat sb;
 419
 420         if (lstat(td->o.directory, &sb) < 0) {
 421                 int ret = errno;
 422
 423                 log_err("fio: %s is not a directory\n", td->o.directory);
 424                 td_verror(td, ret, "lstat");
 425                 return 1;
 426         }
 427         if (!S_ISDIR(sb.st_mode)) {
 428                 log_err("fio: %s is not a directory\n", td->o.directory);
 429                 return 1;
 430         }
 431
 432         return 0;
 433 }
 434
 435 static int str_opendir_cb(void *data, const char fio_unused *str)
 436 {
 437         struct thread_data *td = data;
 438
 439         if (!td->files_index)
 440                 td->o.nr_files = 0;
 441
 442         return add_dir_files(td, td->o.opendir);
 443 }
 444
 445 static int str_verify_offset_cb(void *data, unsigned int *off)
 446 {
 447         struct thread_data *td = data;
 448
 449         if (*off && *off < sizeof(struct verify_header)) {
 450                 log_err("fio: verify_offset too small\n");
 451                 return 1;
 452         }
 453
 454         td->o.verify_offset = *off;
 455         return 0;
 456 }
 457
 458 static int str_verify_pattern_cb(void *data, unsigned int *off)
 459 {
 460         struct thread_data *td = data;
 461         unsigned int msb;
 462
 463         msb = __fls(*off);
 464         if (msb <= 8)
 465                 td->o.verify_pattern_bytes = 1;
 466         else if (msb <= 16)
 467                 td->o.verify_pattern_bytes = 2;
 468         else if (msb <= 24)
 469                 td->o.verify_pattern_bytes = 3;
 470         else
 471                 td->o.verify_pattern_bytes = 4;
 472
 473         td->o.verify_pattern = *off;
 474         return 0;
 475 }
 476
 477 static int str_lockfile_cb(void *data, const char *str)
 478 {
 479         struct thread_data *td = data;
 480         char *nr = get_opt_postfix(str);
 481
 482         td->o.lockfile_batch = 1;
 483         if (nr) {
 484                 td->o.lockfile_batch = atoi(nr);
 485                 free(nr);
 486         }
 487
 488         return 0;
 489 }
 490
 491 static int str_write_bw_log_cb(void *data, const char *str)
 492 {
 493         struct thread_data *td = data;
 494
 495         if (str)
 496                 td->o.bw_log_file = strdup(str);
 497
 498         td->o.write_bw_log = 1;
 499         return 0;
 500 }
 501
 502 static int str_write_lat_log_cb(void *data, const char *str)
 503 {
 504         struct thread_data *td = data;
 505
 506         if (str)
 507                 td->o.lat_log_file = strdup(str);
 508
 509         td->o.write_lat_log = 1;
 510         return 0;
 511 }
 512
 513 static int str_gtod_reduce_cb(void *data, int *il)
 514 {
 515         struct thread_data *td = data;
 516         int val = *il;
 517
 518         td->o.disable_clat = !!val;
 519         td->o.disable_slat = !!val;
 520         td->o.disable_bw = !!val;
 521         if (val)
 522                 td->tv_cache_mask = 63;
 523
 524         return 0;
 525 }
 526
 527 static int str_gtod_cpu_cb(void *data, int *il)
 528 {
 529         struct thread_data *td = data;
 530         int val = *il;
 531
 532         td->o.gtod_cpu = val;
 533         td->o.gtod_offload = 1;
 534         return 0;
 535 }
 536
 537 #define __stringify_1(x)        #x
 538 #define __stringify(x)          __stringify_1(x)
 539
 540 /*
 541  * Map of job/command line options
 542  */
 543 static struct fio_option options[] = {
 544         {
 545                 .name   = "description",
 546                 .type   = FIO_OPT_STR_STORE,
 547                 .off1   = td_var_offset(description),
 548                 .help   = "Text job description",
 549         },
 550         {
 551                 .name   = "name",
 552                 .type   = FIO_OPT_STR_STORE,
 553                 .off1   = td_var_offset(name),
 554                 .help   = "Name of this job",
 555         },
 556         {
 557                 .name   = "directory",
 558                 .type   = FIO_OPT_STR_STORE,
 559                 .off1   = td_var_offset(directory),
 560                 .cb     = str_directory_cb,
 561                 .help   = "Directory to store files in",
 562         },
 563         {
 564                 .name   = "filename",
 565                 .type   = FIO_OPT_STR_STORE,
 566                 .off1   = td_var_offset(filename),
 567                 .cb     = str_filename_cb,
 568                 .prio   = 1, /* must come before "directory" */
 569                 .help   = "File(s) to use for the workload",
 570         },
 571         {
 572                 .name   = "lockfile",
 573                 .type   = FIO_OPT_STR,
 574                 .cb     = str_lockfile_cb,
 575                 .off1   = td_var_offset(file_lock_mode),
 576                 .help   = "Lock file when doing IO to it",
 577                 .parent = "filename",
 578                 .def    = "none",
 579                 .posval = {
 580                           { .ival = "none",
 581                             .oval = FILE_LOCK_NONE,
 582                             .help = "No file locking",
 583                           },
 584                           { .ival = "exclusive",
 585                             .oval = FILE_LOCK_EXCLUSIVE,
 586                             .help = "Exclusive file lock",
 587                           },
 588                           {
 589                             .ival = "readwrite",
 590                             .oval = FILE_LOCK_READWRITE,
 591                             .help = "Read vs write lock",
 592                           },
 593                 },
 594         },
 595         {
 596                 .name   = "opendir",
 597                 .type   = FIO_OPT_STR_STORE,
 598                 .off1   = td_var_offset(opendir),
 599                 .cb     = str_opendir_cb,
 600                 .help   = "Recursively add files from this directory and down",
 601         },
 602         {
 603                 .name   = "rw",
 604                 .alias  = "readwrite",
 605                 .type   = FIO_OPT_STR,
 606                 .cb     = str_rw_cb,
 607                 .off1   = td_var_offset(td_ddir),
 608                 .help   = "IO direction",
 609                 .def    = "read",
 610                 .posval = {
 611                           { .ival = "read",
 612                             .oval = TD_DDIR_READ,
 613                             .help = "Sequential read",
 614                           },
 615                           { .ival = "write",
 616                             .oval = TD_DDIR_WRITE,
 617                             .help = "Sequential write",
 618                           },
 619                           { .ival = "randread",
 620                             .oval = TD_DDIR_RANDREAD,
 621                             .help = "Random read",
 622                           },
 623                           { .ival = "randwrite",
 624                             .oval = TD_DDIR_RANDWRITE,
 625                             .help = "Random write",
 626                           },
 627                           { .ival = "rw",
 628                             .oval = TD_DDIR_RW,
 629                             .help = "Sequential read and write mix",
 630                           },
 631                           { .ival = "randrw",
 632                             .oval = TD_DDIR_RANDRW,
 633                             .help = "Random read and write mix"
 634                           },
 635                 },
 636         },
 637         {
 638                 .name   = "ioengine",
 639                 .type   = FIO_OPT_STR_STORE,
 640                 .off1   = td_var_offset(ioengine),
 641                 .help   = "IO engine to use",
 642                 .def    = "sync",
 643                 .posval = {
 644                           { .ival = "sync",
 645                             .help = "Use read/write",
 646                           },
 647                           { .ival = "psync",
 648                             .help = "Use pread/pwrite",
 649                           },
 650                           { .ival = "vsync",
 651                              .help = "Use readv/writev",
 652                           },
 653 #ifdef FIO_HAVE_LIBAIO
 654                           { .ival = "libaio",
 655                             .help = "Linux native asynchronous IO",
 656                           },
 657 #endif
 658 #ifdef FIO_HAVE_POSIXAIO
 659                           { .ival = "posixaio",
 660                             .help = "POSIX asynchronous IO",
 661                           },
 662 #endif
 663 #ifdef FIO_HAVE_SOLARISAIO
 664                           { .ival = "solarisaio",
 665                             .help = "Solaris native asynchronous IO",
 666                           },
 667 #endif
 668                           { .ival = "mmap",
 669                             .help = "Memory mapped IO",
 670                           },
 671 #ifdef FIO_HAVE_SPLICE
 672                           { .ival = "splice",
 673                             .help = "splice/vmsplice based IO",
 674                           },
 675                           { .ival = "netsplice",
 676                             .help = "splice/vmsplice to/from the network",
 677                           },
 678 #endif
 679 #ifdef FIO_HAVE_SGIO
 680                           { .ival = "sg",
 681                             .help = "SCSI generic v3 IO",
 682                           },
 683 #endif
 684                           { .ival = "null",
 685                             .help = "Testing engine (no data transfer)",
 686                           },
 687                           { .ival = "net",
 688                             .help = "Network IO",
 689                           },
 690 #ifdef FIO_HAVE_SYSLET
 691                           { .ival = "syslet-rw",
 692                             .help = "syslet enabled async pread/pwrite IO",
 693                           },
 694 #endif
 695                           { .ival = "cpuio",
 696                             .help = "CPU cycler burner engine",
 697                           },
 698 #ifdef FIO_HAVE_GUASI
 699                           { .ival = "guasi",
 700                             .help = "GUASI IO engine",
 701                           },
 702 #endif
 703                           { .ival = "external",
 704                             .help = "Load external engine (append name)",
 705                           },
 706                 },
 707         },
 708         {
 709                 .name   = "iodepth",
 710                 .type   = FIO_OPT_INT,
 711                 .off1   = td_var_offset(iodepth),
 712                 .help   = "Amount of IO buffers to keep in flight",
 713                 .minval = 1,
 714                 .def    = "1",
 715         },
 716         {
 717                 .name   = "iodepth_batch",
 718                 .alias  = "iodepth_batch_submit",
 719                 .type   = FIO_OPT_INT,
 720                 .off1   = td_var_offset(iodepth_batch),
 721                 .help   = "Number of IO to submit in one go",
 722                 .parent = "iodepth",
 723                 .minval = 1,
 724                 .def    = "1",
 725         },
 726         {
 727                 .name   = "iodepth_batch_complete",
 728                 .type   = FIO_OPT_INT,
 729                 .off1   = td_var_offset(iodepth_batch_complete),
 730                 .help   = "Number of IO to retrieve in one go",
 731                 .parent = "iodepth",
 732                 .minval = 0,
 733                 .def    = "1",
 734         },
 735         {
 736                 .name   = "iodepth_low",
 737                 .type   = FIO_OPT_INT,
 738                 .off1   = td_var_offset(iodepth_low),
 739                 .help   = "Low water mark for queuing depth",
 740                 .parent = "iodepth",
 741         },
 742         {
 743                 .name   = "size",
 744                 .type   = FIO_OPT_STR_VAL,
 745                 .off1   = td_var_offset(size),
 746                 .minval = 1,
 747                 .help   = "Total size of device or files",
 748         },
 749         {
 750                 .name   = "fill_device",
 751                 .type   = FIO_OPT_BOOL,
 752                 .off1   = td_var_offset(fill_device),
 753                 .help   = "Write until an ENOSPC error occurs",
 754                 .def    = "0",
 755         },
 756         {
 757                 .name   = "filesize",
 758                 .type   = FIO_OPT_STR_VAL,
 759                 .off1   = td_var_offset(file_size_low),
 760                 .off2   = td_var_offset(file_size_high),
 761                 .minval = 1,
 762                 .help   = "Size of individual files",
 763         },
 764         {
 765                 .name   = "offset",
 766                 .alias  = "fileoffset",
 767                 .type   = FIO_OPT_STR_VAL,
 768                 .off1   = td_var_offset(start_offset),
 769                 .help   = "Start IO from this offset",
 770                 .def    = "0",
 771         },
 772         {
 773                 .name   = "bs",
 774                 .alias  = "blocksize",
 775                 .type   = FIO_OPT_STR_VAL_INT,
 776                 .off1   = td_var_offset(bs[DDIR_READ]),
 777                 .off2   = td_var_offset(bs[DDIR_WRITE]),
 778                 .minval = 1,
 779                 .help   = "Block size unit",
 780                 .def    = "4k",
 781                 .parent = "rw",
 782         },
 783         {
 784                 .name   = "bsrange",
 785                 .alias  = "blocksize_range",
 786                 .type   = FIO_OPT_RANGE,
 787                 .off1   = td_var_offset(min_bs[DDIR_READ]),
 788                 .off2   = td_var_offset(max_bs[DDIR_READ]),
 789                 .off3   = td_var_offset(min_bs[DDIR_WRITE]),
 790                 .off4   = td_var_offset(max_bs[DDIR_WRITE]),
 791                 .minval = 1,
 792                 .help   = "Set block size range (in more detail than bs)",
 793                 .parent = "rw",
 794         },
 795         {
 796                 .name   = "bssplit",
 797                 .type   = FIO_OPT_STR,
 798                 .cb     = str_bssplit_cb,
 799                 .help   = "Set a specific mix of block sizes",
 800                 .parent = "rw",
 801         },
 802         {
 803                 .name   = "bs_unaligned",
 804                 .alias  = "blocksize_unaligned",
 805                 .type   = FIO_OPT_STR_SET,
 806                 .off1   = td_var_offset(bs_unaligned),
 807                 .help   = "Don't sector align IO buffer sizes",
 808                 .parent = "rw",
 809         },
 810         {
 811                 .name   = "randrepeat",
 812                 .type   = FIO_OPT_BOOL,
 813                 .off1   = td_var_offset(rand_repeatable),
 814                 .help   = "Use repeatable random IO pattern",
 815                 .def    = "1",
 816                 .parent = "rw",
 817         },
 818         {
 819                 .name   = "norandommap",
 820                 .type   = FIO_OPT_STR_SET,
 821                 .off1   = td_var_offset(norandommap),
 822                 .help   = "Accept potential duplicate random blocks",
 823                 .parent = "rw",
 824         },
 825         {
 826                 .name   = "softrandommap",
 827                 .type   = FIO_OPT_BOOL,
 828                 .off1   = td_var_offset(softrandommap),
 829                 .help   = "Set norandommap if randommap allocation fails",
 830                 .parent = "norandommap",
 831                 .def    = "0",
 832         },
 833         {
 834                 .name   = "nrfiles",
 835                 .type   = FIO_OPT_INT,
 836                 .off1   = td_var_offset(nr_files),
 837                 .help   = "Split job workload between this number of files",
 838                 .def    = "1",
 839         },
 840         {
 841                 .name   = "openfiles",
 842                 .type   = FIO_OPT_INT,
 843                 .off1   = td_var_offset(open_files),
 844                 .help   = "Number of files to keep open at the same time",
 845         },
 846         {
 847                 .name   = "file_service_type",
 848                 .type   = FIO_OPT_STR,
 849                 .cb     = str_fst_cb,
 850                 .off1   = td_var_offset(file_service_type),
 851                 .help   = "How to select which file to service next",
 852                 .def    = "roundrobin",
 853                 .posval = {
 854                           { .ival = "random",
 855                             .oval = FIO_FSERVICE_RANDOM,
 856                             .help = "Choose a file at random",
 857                           },
 858                           { .ival = "roundrobin",
 859                             .oval = FIO_FSERVICE_RR,
 860                             .help = "Round robin select files",
 861                           },
 862                 },
 863                 .parent = "nrfiles",
 864         },
 865         {
 866                 .name   = "fadvise_hint",
 867                 .type   = FIO_OPT_BOOL,
 868                 .off1   = td_var_offset(fadvise_hint),
 869                 .help   = "Use fadvise() to advise the kernel on IO pattern",
 870                 .def    = "1",
 871         },
 872         {
 873                 .name   = "fsync",
 874                 .type   = FIO_OPT_INT,
 875                 .off1   = td_var_offset(fsync_blocks),
 876                 .help   = "Issue fsync for writes every given number of blocks",
 877                 .def    = "0",
 878         },
 879         {
 880                 .name   = "direct",
 881                 .type   = FIO_OPT_BOOL,
 882                 .off1   = td_var_offset(odirect),
 883                 .help   = "Use O_DIRECT IO (negates buffered)",
 884                 .def    = "0",
 885         },
 886         {
 887                 .name   = "buffered",
 888                 .type   = FIO_OPT_BOOL,
 889                 .off1   = td_var_offset(odirect),
 890                 .neg    = 1,
 891                 .help   = "Use buffered IO (negates direct)",
 892                 .def    = "1",
 893         },
 894         {
 895                 .name   = "overwrite",
 896                 .type   = FIO_OPT_BOOL,
 897                 .off1   = td_var_offset(overwrite),
 898                 .help   = "When writing, set whether to overwrite current data",
 899                 .def    = "0",
 900         },
 901         {
 902                 .name   = "loops",
 903                 .type   = FIO_OPT_INT,
 904                 .off1   = td_var_offset(loops),
 905                 .help   = "Number of times to run the job",
 906                 .def    = "1",
 907         },
 908         {
 909                 .name   = "numjobs",
 910                 .type   = FIO_OPT_INT,
 911                 .off1   = td_var_offset(numjobs),
 912                 .help   = "Duplicate this job this many times",
 913                 .def    = "1",
 914         },
 915         {
 916                 .name   = "startdelay",
 917                 .type   = FIO_OPT_INT,
 918                 .off1   = td_var_offset(start_delay),
 919                 .help   = "Only start job when this period has passed",
 920                 .def    = "0",
 921         },
 922         {
 923                 .name   = "runtime",
 924                 .alias  = "timeout",
 925                 .type   = FIO_OPT_STR_VAL_TIME,
 926                 .off1   = td_var_offset(timeout),
 927                 .help   = "Stop workload when this amount of time has passed",
 928                 .def    = "0",
 929         },
 930         {
 931                 .name   = "time_based",
 932                 .type   = FIO_OPT_STR_SET,
 933                 .off1   = td_var_offset(time_based),
 934                 .help   = "Keep running until runtime/timeout is met",
 935         },
 936         {
 937                 .name   = "ramp_time",
 938                 .type   = FIO_OPT_STR_VAL_TIME,
 939                 .off1   = td_var_offset(ramp_time),
 940                 .help   = "Ramp up time before measuring performance",
 941         },
 942         {
 943                 .name   = "mem",
 944                 .alias  = "iomem",
 945                 .type   = FIO_OPT_STR,
 946                 .cb     = str_mem_cb,
 947                 .off1   = td_var_offset(mem_type),
 948                 .help   = "Backing type for IO buffers",
 949                 .def    = "malloc",
 950                 .posval = {
 951                           { .ival = "malloc",
 952                             .oval = MEM_MALLOC,
 953                             .help = "Use malloc(3) for IO buffers",
 954                           },
 955                           { .ival = "shm",
 956                             .oval = MEM_SHM,
 957                             .help = "Use shared memory segments for IO buffers",
 958                           },
 959 #ifdef FIO_HAVE_HUGETLB
 960                           { .ival = "shmhuge",
 961                             .oval = MEM_SHMHUGE,
 962                             .help = "Like shm, but use huge pages",
 963                           },
 964 #endif
 965                           { .ival = "mmap",
 966                             .oval = MEM_MMAP,
 967                             .help = "Use mmap(2) (file or anon) for IO buffers",
 968                           },
 969 #ifdef FIO_HAVE_HUGETLB
 970                           { .ival = "mmaphuge",
 971                             .oval = MEM_MMAPHUGE,
 972                             .help = "Like mmap, but use huge pages",
 973                           },
 974 #endif
 975                   },
 976         },
 977         {
 978                 .name   = "verify",
 979                 .type   = FIO_OPT_STR,
 980                 .off1   = td_var_offset(verify),
 981                 .help   = "Verify data written",
 982                 .def    = "0",
 983                 .posval = {
 984                           { .ival = "0",
 985                             .oval = VERIFY_NONE,
 986                             .help = "Don't do IO verification",
 987                           },
 988                           { .ival = "md5",
 989                             .oval = VERIFY_MD5,
 990                             .help = "Use md5 checksums for verification",
 991                           },
 992                           { .ival = "crc64",
 993                             .oval = VERIFY_CRC64,
 994                             .help = "Use crc64 checksums for verification",
 995                           },
 996                           { .ival = "crc32",
 997                             .oval = VERIFY_CRC32,
 998                             .help = "Use crc32 checksums for verification",
 999                           },
1000                           { .ival = "crc32c-intel",
1001                             .oval = VERIFY_CRC32C_INTEL,
1002                             .help = "Use hw crc32c checksums for verification",
1003                           },
1004                           { .ival = "crc32c",
1005                             .oval = VERIFY_CRC32C,
1006                             .help = "Use crc32c checksums for verification",
1007                           },
1008                           { .ival = "crc16",
1009                             .oval = VERIFY_CRC16,
1010                             .help = "Use crc16 checksums for verification",
1011                           },
1012                           { .ival = "crc7",
1013                             .oval = VERIFY_CRC7,
1014                             .help = "Use crc7 checksums for verification",
1015                           },
1016                           { .ival = "sha256",
1017                             .oval = VERIFY_SHA256,
1018                             .help = "Use sha256 checksums for verification",
1019                           },
1020                           { .ival = "sha512",
1021                             .oval = VERIFY_SHA512,
1022                             .help = "Use sha512 checksums for verification",
1023                           },
1024                           { .ival = "meta",
1025                             .oval = VERIFY_META,
1026                             .help = "Use io information",
1027                           },
1028                           {
1029                             .ival = "null",
1030                             .oval = VERIFY_NULL,
1031                             .help = "Pretend to verify",
1032                           },
1033                 },
1034         },
1035         {
1036                 .name   = "do_verify",
1037                 .type   = FIO_OPT_BOOL,
1038                 .off1   = td_var_offset(do_verify),
1039                 .help   = "Run verification stage after write",
1040                 .def    = "1",
1041                 .parent = "verify",
1042         },
1043         {
1044                 .name   = "verifysort",
1045                 .type   = FIO_OPT_BOOL,
1046                 .off1   = td_var_offset(verifysort),
1047                 .help   = "Sort written verify blocks for read back",
1048                 .def    = "1",
1049                 .parent = "verify",
1050         },
1051         {
1052                 .name   = "verify_interval",
1053                 .type   = FIO_OPT_STR_VAL_INT,
1054                 .off1   = td_var_offset(verify_interval),
1055                 .minval = 2 * sizeof(struct verify_header),
1056                 .help   = "Store verify buffer header every N bytes",
1057                 .parent = "verify",
1058         },
1059         {
1060                 .name   = "verify_offset",
1061                 .type   = FIO_OPT_STR_VAL_INT,
1062                 .help   = "Offset verify header location by N bytes",
1063                 .def    = "0",
1064                 .cb     = str_verify_offset_cb,
1065                 .parent = "verify",
1066         },
1067         {
1068                 .name   = "verify_pattern",
1069                 .type   = FIO_OPT_INT,
1070                 .cb     = str_verify_pattern_cb,
1071                 .help   = "Fill pattern for IO buffers",
1072                 .parent = "verify",
1073         },
1074         {
1075                 .name   = "verify_fatal",
1076                 .type   = FIO_OPT_BOOL,
1077                 .off1   = td_var_offset(verify_fatal),
1078                 .def    = "0",
1079                 .help   = "Exit on a single verify failure, don't continue",
1080                 .parent = "verify",
1081         },
1082         {
1083                 .name   = "write_iolog",
1084                 .type   = FIO_OPT_STR_STORE,
1085                 .off1   = td_var_offset(write_iolog_file),
1086                 .help   = "Store IO pattern to file",
1087         },
1088         {
1089                 .name   = "read_iolog",
1090                 .type   = FIO_OPT_STR_STORE,
1091                 .off1   = td_var_offset(read_iolog_file),
1092                 .help   = "Playback IO pattern from file",
1093         },
1094         {
1095                 .name   = "exec_prerun",
1096                 .type   = FIO_OPT_STR_STORE,
1097                 .off1   = td_var_offset(exec_prerun),
1098                 .help   = "Execute this file prior to running job",
1099         },
1100         {
1101                 .name   = "exec_postrun",
1102                 .type   = FIO_OPT_STR_STORE,
1103                 .off1   = td_var_offset(exec_postrun),
1104                 .help   = "Execute this file after running job",
1105         },
1106 #ifdef FIO_HAVE_IOSCHED_SWITCH
1107         {
1108                 .name   = "ioscheduler",
1109                 .type   = FIO_OPT_STR_STORE,
1110                 .off1   = td_var_offset(ioscheduler),
1111                 .help   = "Use this IO scheduler on the backing device",
1112         },
1113 #endif
1114         {
1115                 .name   = "zonesize",
1116                 .type   = FIO_OPT_STR_VAL,
1117                 .off1   = td_var_offset(zone_size),
1118                 .help   = "Give size of an IO zone",
1119                 .def    = "0",
1120         },
1121         {
1122                 .name   = "zoneskip",
1123                 .type   = FIO_OPT_STR_VAL,
1124                 .off1   = td_var_offset(zone_skip),
1125                 .help   = "Space between IO zones",
1126                 .def    = "0",
1127         },
1128         {
1129                 .name   = "lockmem",
1130                 .type   = FIO_OPT_STR_VAL,
1131                 .cb     = str_lockmem_cb,
1132                 .help   = "Lock down this amount of memory",
1133                 .def    = "0",
1134         },
1135         {
1136                 .name   = "rwmixread",
1137                 .type   = FIO_OPT_INT,
1138                 .cb     = str_rwmix_read_cb,
1139                 .maxval = 100,
1140                 .help   = "Percentage of mixed workload that is reads",
1141                 .def    = "50",
1142         },
1143         {
1144                 .name   = "rwmixwrite",
1145                 .type   = FIO_OPT_INT,
1146                 .cb     = str_rwmix_write_cb,
1147                 .maxval = 100,
1148                 .help   = "Percentage of mixed workload that is writes",
1149                 .def    = "50",
1150         },
1151         {
1152                 .name   = "rwmixcycle",
1153                 .type   = FIO_OPT_DEPRECATED,
1154         },
1155         {
1156                 .name   = "nice",
1157                 .type   = FIO_OPT_INT,
1158                 .off1   = td_var_offset(nice),
1159                 .help   = "Set job CPU nice value",
1160                 .minval = -19,
1161                 .maxval = 20,
1162                 .def    = "0",
1163         },
1164 #ifdef FIO_HAVE_IOPRIO
1165         {
1166                 .name   = "prio",
1167                 .type   = FIO_OPT_INT,
1168                 .cb     = str_prio_cb,
1169                 .help   = "Set job IO priority value",
1170                 .minval = 0,
1171                 .maxval = 7,
1172         },
1173         {
1174                 .name   = "prioclass",
1175                 .type   = FIO_OPT_INT,
1176                 .cb     = str_prioclass_cb,
1177                 .help   = "Set job IO priority class",
1178                 .minval = 0,
1179                 .maxval = 3,
1180         },
1181 #endif
1182         {
1183                 .name   = "thinktime",
1184                 .type   = FIO_OPT_INT,
1185                 .off1   = td_var_offset(thinktime),
1186                 .help   = "Idle time between IO buffers (usec)",
1187                 .def    = "0",
1188         },
1189         {
1190                 .name   = "thinktime_spin",
1191                 .type   = FIO_OPT_INT,
1192                 .off1   = td_var_offset(thinktime_spin),
1193                 .help   = "Start think time by spinning this amount (usec)",
1194                 .def    = "0",
1195                 .parent = "thinktime",
1196         },
1197         {
1198                 .name   = "thinktime_blocks",
1199                 .type   = FIO_OPT_INT,
1200                 .off1   = td_var_offset(thinktime_blocks),
1201                 .help   = "IO buffer period between 'thinktime'",
1202                 .def    = "1",
1203                 .parent = "thinktime",
1204         },
1205         {
1206                 .name   = "rate",
1207                 .type   = FIO_OPT_INT,
1208                 .off1   = td_var_offset(rate),
1209                 .help   = "Set bandwidth rate",
1210         },
1211         {
1212                 .name   = "ratemin",
1213                 .type   = FIO_OPT_INT,
1214                 .off1   = td_var_offset(ratemin),
1215                 .help   = "Job must meet this rate or it will be shutdown",
1216                 .parent = "rate",
1217         },
1218         {
1219                 .name   = "rate_iops",
1220                 .type   = FIO_OPT_INT,
1221                 .off1   = td_var_offset(rate_iops),
1222                 .help   = "Limit IO used to this number of IO operations/sec",
1223         },
1224         {
1225                 .name   = "rate_iops_min",
1226                 .type   = FIO_OPT_INT,
1227                 .off1   = td_var_offset(rate_iops_min),
1228                 .help   = "Job must meet this rate or it will be shutdown",
1229                 .parent = "rate_iops",
1230         },
1231         {
1232                 .name   = "ratecycle",
1233                 .type   = FIO_OPT_INT,
1234                 .off1   = td_var_offset(ratecycle),
1235                 .help   = "Window average for rate limits (msec)",
1236                 .def    = "1000",
1237                 .parent = "rate",
1238         },
1239         {
1240                 .name   = "invalidate",
1241                 .type   = FIO_OPT_BOOL,
1242                 .off1   = td_var_offset(invalidate_cache),
1243                 .help   = "Invalidate buffer/page cache prior to running job",
1244                 .def    = "1",
1245         },
1246         {
1247                 .name   = "sync",
1248                 .type   = FIO_OPT_BOOL,
1249                 .off1   = td_var_offset(sync_io),
1250                 .help   = "Use O_SYNC for buffered writes",
1251                 .def    = "0",
1252                 .parent = "buffered",
1253         },
1254         {
1255                 .name   = "bwavgtime",
1256                 .type   = FIO_OPT_INT,
1257                 .off1   = td_var_offset(bw_avg_time),
1258                 .help   = "Time window over which to calculate bandwidth"
1259                           " (msec)",
1260                 .def    = "500",
1261         },
1262         {
1263                 .name   = "create_serialize",
1264                 .type   = FIO_OPT_BOOL,
1265                 .off1   = td_var_offset(create_serialize),
1266                 .help   = "Serialize creating of job files",
1267                 .def    = "1",
1268         },
1269         {
1270                 .name   = "create_fsync",
1271                 .type   = FIO_OPT_BOOL,
1272                 .off1   = td_var_offset(create_fsync),
1273                 .help   = "Fsync file after creation",
1274                 .def    = "1",
1275         },
1276         {
1277                 .name   = "cpuload",
1278                 .type   = FIO_OPT_INT,
1279                 .off1   = td_var_offset(cpuload),
1280                 .help   = "Use this percentage of CPU",
1281         },
1282         {
1283                 .name   = "cpuchunks",
1284                 .type   = FIO_OPT_INT,
1285                 .off1   = td_var_offset(cpucycle),
1286                 .help   = "Length of the CPU burn cycles (usecs)",
1287                 .def    = "50000",
1288                 .parent = "cpuload",
1289         },
1290 #ifdef FIO_HAVE_CPU_AFFINITY
1291         {
1292                 .name   = "cpumask",
1293                 .type   = FIO_OPT_INT,
1294                 .cb     = str_cpumask_cb,
1295                 .help   = "CPU affinity mask",
1296         },
1297         {
1298                 .name   = "cpus_allowed",
1299                 .type   = FIO_OPT_STR,
1300                 .cb     = str_cpus_allowed_cb,
1301                 .help   = "Set CPUs allowed",
1302         },
1303 #endif
1304         {
1305                 .name   = "end_fsync",
1306                 .type   = FIO_OPT_BOOL,
1307                 .off1   = td_var_offset(end_fsync),
1308                 .help   = "Include fsync at the end of job",
1309                 .def    = "0",
1310         },
1311         {
1312                 .name   = "fsync_on_close",
1313                 .type   = FIO_OPT_BOOL,
1314                 .off1   = td_var_offset(fsync_on_close),
1315                 .help   = "fsync files on close",
1316                 .def    = "0",
1317         },
1318         {
1319                 .name   = "unlink",
1320                 .type   = FIO_OPT_BOOL,
1321                 .off1   = td_var_offset(unlink),
1322                 .help   = "Unlink created files after job has completed",
1323                 .def    = "0",
1324         },
1325         {
1326                 .name   = "exitall",
1327                 .type   = FIO_OPT_STR_SET,
1328                 .cb     = str_exitall_cb,
1329                 .help   = "Terminate all jobs when one exits",
1330         },
1331         {
1332                 .name   = "stonewall",
1333                 .type   = FIO_OPT_STR_SET,
1334                 .off1   = td_var_offset(stonewall),
1335                 .help   = "Insert a hard barrier between this job and previous",
1336         },
1337         {
1338                 .name   = "new_group",
1339                 .type   = FIO_OPT_STR_SET,
1340                 .off1   = td_var_offset(new_group),
1341                 .help   = "Mark the start of a new group (for reporting)",
1342         },
1343         {
1344                 .name   = "thread",
1345                 .type   = FIO_OPT_STR_SET,
1346                 .off1   = td_var_offset(use_thread),
1347                 .help   = "Use threads instead of forks",
1348         },
1349         {
1350                 .name   = "write_bw_log",
1351                 .type   = FIO_OPT_STR,
1352                 .off1   = td_var_offset(write_bw_log),
1353                 .cb     = str_write_bw_log_cb,
1354                 .help   = "Write log of bandwidth during run",
1355         },
1356         {
1357                 .name   = "write_lat_log",
1358                 .type   = FIO_OPT_STR,
1359                 .off1   = td_var_offset(write_lat_log),
1360                 .cb     = str_write_lat_log_cb,
1361                 .help   = "Write log of latency during run",
1362         },
1363         {
1364                 .name   = "hugepage-size",
1365                 .type   = FIO_OPT_STR_VAL_INT,
1366                 .off1   = td_var_offset(hugepage_size),
1367                 .help   = "When using hugepages, specify size of each page",
1368                 .def    = __stringify(FIO_HUGE_PAGE),
1369         },
1370         {
1371                 .name   = "group_reporting",
1372                 .type   = FIO_OPT_STR_SET,
1373                 .off1   = td_var_offset(group_reporting),
1374                 .help   = "Do reporting on a per-group basis",
1375         },
1376         {
1377                 .name   = "zero_buffers",
1378                 .type   = FIO_OPT_STR_SET,
1379                 .off1   = td_var_offset(zero_buffers),
1380                 .help   = "Init IO buffers to all zeroes",
1381         },
1382         {
1383                 .name   = "refill_buffers",
1384                 .type   = FIO_OPT_STR_SET,
1385                 .off1   = td_var_offset(refill_buffers),
1386                 .help   = "Refill IO buffers on every IO submit",
1387         },
1388 #ifdef FIO_HAVE_DISK_UTIL
1389         {
1390                 .name   = "disk_util",
1391                 .type   = FIO_OPT_BOOL,
1392                 .off1   = td_var_offset(do_disk_util),
1393                 .help   = "Log disk utilization statistics",
1394                 .def    = "1",
1395         },
1396 #endif
1397         {
1398                 .name   = "gtod_reduce",
1399                 .type   = FIO_OPT_BOOL,
1400                 .help   = "Greatly reduce number of gettimeofday() calls",
1401                 .cb     = str_gtod_reduce_cb,
1402                 .def    = "0",
1403         },
1404         {
1405                 .name   = "disable_clat",
1406                 .type   = FIO_OPT_BOOL,
1407                 .off1   = td_var_offset(disable_clat),
1408                 .help   = "Disable completion latency numbers",
1409                 .parent = "gtod_reduce",
1410                 .def    = "0",
1411         },
1412         {
1413                 .name   = "disable_slat",
1414                 .type   = FIO_OPT_BOOL,
1415                 .off1   = td_var_offset(disable_slat),
1416                 .help   = "Disable submissionn latency numbers",
1417                 .parent = "gtod_reduce",
1418                 .def    = "0",
1419         },
1420         {
1421                 .name   = "disable_bw_measurement",
1422                 .type   = FIO_OPT_BOOL,
1423                 .off1   = td_var_offset(disable_bw),
1424                 .help   = "Disable bandwidth logging",
1425                 .parent = "gtod_reduce",
1426                 .def    = "0",
1427         },
1428         {
1429                 .name   = "gtod_cpu",
1430                 .type   = FIO_OPT_INT,
1431                 .cb     = str_gtod_cpu_cb,
1432                 .help   = "Setup dedicated gettimeofday() thread on this CPU",
1433         },
1434         {
1435                 .name = NULL,
1436         },
1437 };
1438
1439 void fio_options_dup_and_init(struct option *long_options)
1440 {
1441         struct fio_option *o;
1442         unsigned int i;
1443
1444         options_init(options);
1445
1446         i = 0;
1447         while (long_options[i].name)
1448                 i++;
1449
1450         o = &options[0];
1451         while (o->name) {
1452                 long_options[i].name = (char *) o->name;
1453                 long_options[i].val = FIO_GETOPT_JOB;
1454                 if (o->type == FIO_OPT_STR_SET)
1455                         long_options[i].has_arg = no_argument;
1456                 else
1457                         long_options[i].has_arg = required_argument;
1458
1459                 i++;
1460                 o++;
1461                 assert(i < FIO_NR_OPTIONS);
1462         }
1463 }
1464
1465 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
1466 {
1467         int i, ret;
1468
1469         sort_options(opts, options, num_opts);
1470
1471         for (ret = 0, i = 0; i < num_opts; i++)
1472                 ret |= parse_option(opts[i], options, td);
1473
1474         return ret;
1475 }
1476
1477 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
1478 {
1479         return parse_cmd_option(opt, val, options, td);
1480 }
1481
1482 void fio_fill_default_options(struct thread_data *td)
1483 {
1484         fill_default_options(td, options);
1485 }
1486
1487 int fio_show_option_help(const char *opt)
1488 {
1489         return show_cmd_help(options, opt);
1490 }
1491
1492 static void __options_mem(struct thread_data *td, int alloc)
1493 {
1494         struct thread_options *o = &td->o;
1495         struct fio_option *opt;
1496         char **ptr;
1497         int i;
1498
1499         for (i = 0, opt = &options[0]; opt->name; i++, opt = &options[i]) {
1500                 if (opt->type != FIO_OPT_STR_STORE)
1501                         continue;
1502
1503                 ptr = (void *) o + opt->off1;
1504                 if (*ptr) {
1505                         if (alloc)
1506                                 *ptr = strdup(*ptr);
1507                         else {
1508                                 free(*ptr);
1509                                 *ptr = NULL;
1510                         }
1511                 }
1512         }
1513 }
1514
1515 /*
1516  * dupe FIO_OPT_STR_STORE options
1517  */
1518 void options_mem_dupe(struct thread_data *td)
1519 {
1520         __options_mem(td, 1);
1521 }
1522
1523 void options_mem_free(struct thread_data fio_unused *td)
1524 {
1525 #if 0
1526         __options_mem(td, 0);
1527 #endif
1528 }