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
   9 #include "fio.h"
  10 #include "parse.h"
  11
  12 #define td_var_offset(var)      ((size_t) &((struct thread_data *)0)->var)
  13
  14 /*
  15  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  16  */
  17 static char *get_opt_postfix(const char *str)
  18 {
  19         char *p = strstr(str, ":");
  20
  21         if (!p)
  22                 return NULL;
  23
  24         p++;
  25         strip_blank_front(&p);
  26         strip_blank_end(p);
  27         return strdup(p);
  28 }
  29
  30 static int str_mem_cb(void *data, const char *mem)
  31 {
  32         struct thread_data *td = data;
  33
  34         if (td->mem_type == MEM_MMAPHUGE || td->mem_type == MEM_MMAP) {
  35                 td->mmapfile = get_opt_postfix(mem);
  36                 if (td->mem_type == MEM_MMAPHUGE && !td->mmapfile) {
  37                         log_err("fio: mmaphuge:/path/to/file\n");
  38                         return 1;
  39                 }
  40         }
  41
  42         return 0;
  43 }
  44
  45 static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
  46 {
  47         mlock_size = *val;
  48         return 0;
  49 }
  50
  51 #ifdef FIO_HAVE_IOPRIO
  52 static int str_prioclass_cb(void *data, unsigned int *val)
  53 {
  54         struct thread_data *td = data;
  55
  56         td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
  57         return 0;
  58 }
  59
  60 static int str_prio_cb(void *data, unsigned int *val)
  61 {
  62         struct thread_data *td = data;
  63
  64         td->ioprio |= *val;
  65         return 0;
  66 }
  67 #endif
  68
  69 static int str_exitall_cb(void)
  70 {
  71         exitall_on_terminate = 1;
  72         return 0;
  73 }
  74
  75 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
  76 {
  77 #ifdef FIO_HAVE_CPU_AFFINITY
  78         unsigned int i;
  79
  80         CPU_ZERO(&cpumask);
  81
  82         for (i = 0; i < sizeof(int) * 8; i++) {
  83                 if ((1 << i) & cpu)
  84                         CPU_SET(i, &cpumask);
  85         }
  86 #endif
  87 }
  88
  89 static int str_cpumask_cb(void *data, unsigned int *val)
  90 {
  91         struct thread_data *td = data;
  92
  93         fill_cpu_mask(td->cpumask, *val);
  94         return 0;
  95 }
  96
  97 static int str_fst_cb(void *data, const char *str)
  98 {
  99         struct thread_data *td = data;
 100         char *nr = get_opt_postfix(str);
 101
 102         td->file_service_nr = 1;
 103         if (nr)
 104                 td->file_service_nr = atoi(nr);
 105
 106         return 0;
 107 }
 108
 109 static int str_filename_cb(void *data, const char *input)
 110 {
 111         struct thread_data *td = data;
 112         char *fname, *str, *p;
 113
 114         p = str = strdup(input);
 115
 116         strip_blank_front(&str);
 117         strip_blank_end(str);
 118
 119         if (!td->files_index)
 120                 td->nr_files = 0;
 121
 122         while ((fname = strsep(&str, ":")) != NULL) {
 123                 if (!strlen(fname))
 124                         break;
 125                 add_file(td, fname);
 126                 td->nr_files++;
 127         }
 128
 129         free(p);
 130         return 0;
 131 }
 132
 133 static int str_directory_cb(void *data, const char fio_unused *str)
 134 {
 135         struct thread_data *td = data;
 136         struct stat sb;
 137
 138         if (lstat(td->directory, &sb) < 0) {
 139                 log_err("fio: %s is not a directory\n", td->directory);
 140                 td_verror(td, errno, "lstat");
 141                 return 1;
 142         }
 143         if (!S_ISDIR(sb.st_mode)) {
 144                 log_err("fio: %s is not a directory\n", td->directory);
 145                 return 1;
 146         }
 147
 148         return 0;
 149 }
 150
 151 static int str_opendir_cb(void *data, const char fio_unused *str)
 152 {
 153         struct thread_data *td = data;
 154
 155         if (!td->files_index)
 156                 td->nr_files = 0;
 157
 158         return add_dir_files(td, td->opendir);
 159 }
 160
 161
 162 #define __stringify_1(x)        #x
 163 #define __stringify(x)          __stringify_1(x)
 164
 165 /*
 166  * Map of job/command line options
 167  */
 168 static struct fio_option options[] = {
 169         {
 170                 .name   = "description",
 171                 .type   = FIO_OPT_STR_STORE,
 172                 .off1   = td_var_offset(description),
 173                 .help   = "Text job description",
 174         },
 175         {
 176                 .name   = "name",
 177                 .type   = FIO_OPT_STR_STORE,
 178                 .off1   = td_var_offset(name),
 179                 .help   = "Name of this job",
 180         },
 181         {
 182                 .name   = "directory",
 183                 .type   = FIO_OPT_STR_STORE,
 184                 .off1   = td_var_offset(directory),
 185                 .cb     = str_directory_cb,
 186                 .help   = "Directory to store files in",
 187         },
 188         {
 189                 .name   = "filename",
 190                 .type   = FIO_OPT_STR_STORE,
 191                 .off1   = td_var_offset(filename),
 192                 .cb     = str_filename_cb,
 193                 .help   = "File(s) to use for the workload",
 194         },
 195         {
 196                 .name   = "opendir",
 197                 .type   = FIO_OPT_STR_STORE,
 198                 .off1   = td_var_offset(opendir),
 199                 .cb     = str_opendir_cb,
 200                 .help   = "Recursively add files from this directory and down",
 201         },
 202         {
 203                 .name   = "rw",
 204                 .type   = FIO_OPT_STR,
 205                 .off1   = td_var_offset(td_ddir),
 206                 .help   = "IO direction",
 207                 .def    = "read",
 208                 .posval = {
 209                           { .ival = "read",
 210                             .oval = TD_DDIR_READ,
 211                             .help = "Sequential read",
 212                           },
 213                           { .ival = "write",
 214                             .oval = TD_DDIR_WRITE,
 215                             .help = "Sequential write",
 216                           },
 217                           { .ival = "randread",
 218                             .oval = TD_DDIR_RANDREAD,
 219                             .help = "Random read",
 220                           },
 221                           { .ival = "randwrite",
 222                             .oval = TD_DDIR_RANDWRITE,
 223                             .help = "Random write",
 224                           },
 225                           { .ival = "rw",
 226                             .oval = TD_DDIR_RW,
 227                             .help = "Sequential read and write mix",
 228                           },
 229                           { .ival = "randrw",
 230                             .oval = TD_DDIR_RANDRW,
 231                             .help = "Random read and write mix"
 232                           },
 233                 },
 234         },
 235         {
 236                 .name   = "ioengine",
 237                 .type   = FIO_OPT_STR_STORE,
 238                 .off1   = td_var_offset(ioengine),
 239                 .help   = "IO engine to use",
 240                 .def    = "sync",
 241                 .posval = {
 242                           { .ival = "sync",
 243                             .help = "Use read/write",
 244                           },
 245 #ifdef FIO_HAVE_LIBAIO
 246                           { .ival = "libaio",
 247                             .help = "Linux native asynchronous IO",
 248                           },
 249 #endif
 250 #ifdef FIO_HAVE_POSIXAIO
 251                           { .ival = "posixaio",
 252                             .help = "POSIX asynchronous IO",
 253                           },
 254 #endif
 255                           { .ival = "mmap",
 256                             .help = "Memory mapped IO",
 257                           },
 258 #ifdef FIO_HAVE_SPLICE
 259                           { .ival = "splice",
 260                             .help = "splice/vmsplice based IO",
 261                           },
 262 #endif
 263 #ifdef FIO_HAVE_SGIO
 264                           { .ival = "sg",
 265                             .help = "SCSI generic v3 IO",
 266                           },
 267 #endif
 268                           { .ival = "null",
 269                             .help = "Testing engine (no data transfer)",
 270                           },
 271                           { .ival = "net",
 272                             .help = "Network IO",
 273                           },
 274 #ifdef FIO_HAVE_SYSLET
 275                           { .ival = "syslet-rw",
 276                             .help = "syslet enabled async pread/pwrite IO",
 277                           },
 278 #endif
 279                           { .ival = "cpuio",
 280                             .help = "CPU cycler burner engine",
 281                           },
 282                           { .ival = "external",
 283                             .help = "Load external engine (append name)",
 284                           },
 285                 },
 286         },
 287         {
 288                 .name   = "iodepth",
 289                 .type   = FIO_OPT_INT,
 290                 .off1   = td_var_offset(iodepth),
 291                 .help   = "Amount of IO buffers to keep in flight",
 292                 .def    = "1",
 293         },
 294         {
 295                 .name   = "iodepth_batch",
 296                 .type   = FIO_OPT_INT,
 297                 .off1   = td_var_offset(iodepth_batch),
 298                 .help   = "Number of IO to submit in one go",
 299         },
 300         {
 301                 .name   = "iodepth_low",
 302                 .type   = FIO_OPT_INT,
 303                 .off1   = td_var_offset(iodepth_low),
 304                 .help   = "Low water mark for queuing depth",
 305         },
 306         {
 307                 .name   = "size",
 308                 .type   = FIO_OPT_STR_VAL,
 309                 .off1   = td_var_offset(total_file_size),
 310                 .help   = "Total size of device or files",
 311         },
 312         {
 313                 .name   = "filesize",
 314                 .type   = FIO_OPT_STR_VAL,
 315                 .off1   = td_var_offset(file_size_low),
 316                 .off2   = td_var_offset(file_size_high),
 317                 .help   = "Size of individual files",
 318         },
 319         {
 320                 .name   = "bs",
 321                 .type   = FIO_OPT_STR_VAL_INT,
 322                 .off1   = td_var_offset(bs[DDIR_READ]),
 323                 .off2   = td_var_offset(bs[DDIR_WRITE]),
 324                 .help   = "Block size unit",
 325                 .def    = "4k",
 326         },
 327         {
 328                 .name   = "bsrange",
 329                 .type   = FIO_OPT_RANGE,
 330                 .off1   = td_var_offset(min_bs[DDIR_READ]),
 331                 .off2   = td_var_offset(max_bs[DDIR_READ]),
 332                 .off3   = td_var_offset(min_bs[DDIR_WRITE]),
 333                 .off4   = td_var_offset(max_bs[DDIR_WRITE]),
 334                 .help   = "Set block size range (in more detail than bs)",
 335         },
 336         {
 337                 .name   = "bs_unaligned",
 338                 .type   = FIO_OPT_STR_SET,
 339                 .off1   = td_var_offset(bs_unaligned),
 340                 .help   = "Don't sector align IO buffer sizes",
 341         },
 342         {
 343                 .name   = "offset",
 344                 .type   = FIO_OPT_STR_VAL,
 345                 .off1   = td_var_offset(start_offset),
 346                 .help   = "Start IO from this offset",
 347                 .def    = "0",
 348         },
 349         {
 350                 .name   = "randrepeat",
 351                 .type   = FIO_OPT_BOOL,
 352                 .off1   = td_var_offset(rand_repeatable),
 353                 .help   = "Use repeatable random IO pattern",
 354                 .def    = "1",
 355         },
 356         {
 357                 .name   = "norandommap",
 358                 .type   = FIO_OPT_STR_SET,
 359                 .off1   = td_var_offset(norandommap),
 360                 .help   = "Accept potential duplicate random blocks",
 361         },
 362         {
 363                 .name   = "nrfiles",
 364                 .type   = FIO_OPT_INT,
 365                 .off1   = td_var_offset(nr_files),
 366                 .help   = "Split job workload between this number of files",
 367                 .def    = "1",
 368         },
 369         {
 370                 .name   = "openfiles",
 371                 .type   = FIO_OPT_INT,
 372                 .off1   = td_var_offset(open_files),
 373                 .help   = "Number of files to keep open at the same time",
 374         },
 375         {
 376                 .name   = "file_service_type",
 377                 .type   = FIO_OPT_STR,
 378                 .cb     = str_fst_cb,
 379                 .off1   = td_var_offset(file_service_type),
 380                 .help   = "How to select which file to service next",
 381                 .def    = "roundrobin",
 382                 .posval = {
 383                           { .ival = "random",
 384                             .oval = FIO_FSERVICE_RANDOM,
 385                             .help = "Choose a file at random",
 386                           },
 387                           { .ival = "roundrobin",
 388                             .oval = FIO_FSERVICE_RR,
 389                             .help = "Round robin select files",
 390                           },
 391                 },
 392         },
 393         {
 394                 .name   = "fsync",
 395                 .type   = FIO_OPT_INT,
 396                 .off1   = td_var_offset(fsync_blocks),
 397                 .help   = "Issue fsync for writes every given number of blocks",
 398                 .def    = "0",
 399         },
 400         {
 401                 .name   = "direct",
 402                 .type   = FIO_OPT_BOOL,
 403                 .off1   = td_var_offset(odirect),
 404                 .help   = "Use O_DIRECT IO (negates buffered)",
 405                 .def    = "0",
 406         },
 407         {
 408                 .name   = "buffered",
 409                 .type   = FIO_OPT_BOOL,
 410                 .off1   = td_var_offset(odirect),
 411                 .neg    = 1,
 412                 .help   = "Use buffered IO (negates direct)",
 413                 .def    = "1",
 414         },
 415         {
 416                 .name   = "overwrite",
 417                 .type   = FIO_OPT_BOOL,
 418                 .off1   = td_var_offset(overwrite),
 419                 .help   = "When writing, set whether to overwrite current data",
 420                 .def    = "0",
 421         },
 422         {
 423                 .name   = "loops",
 424                 .type   = FIO_OPT_INT,
 425                 .off1   = td_var_offset(loops),
 426                 .help   = "Number of times to run the job",
 427                 .def    = "1",
 428         },
 429         {
 430                 .name   = "numjobs",
 431                 .type   = FIO_OPT_INT,
 432                 .off1   = td_var_offset(numjobs),
 433                 .help   = "Duplicate this job this many times",
 434                 .def    = "1",
 435         },
 436         {
 437                 .name   = "startdelay",
 438                 .type   = FIO_OPT_INT,
 439                 .off1   = td_var_offset(start_delay),
 440                 .help   = "Only start job when this period has passed",
 441                 .def    = "0",
 442         },
 443         {
 444                 .name   = "runtime",
 445                 .alias  = "timeout",
 446                 .type   = FIO_OPT_STR_VAL_TIME,
 447                 .off1   = td_var_offset(timeout),
 448                 .help   = "Stop workload when this amount of time has passed",
 449                 .def    = "0",
 450         },
 451         {
 452                 .name   = "mem",
 453                 .type   = FIO_OPT_STR,
 454                 .cb     = str_mem_cb,
 455                 .off1   = td_var_offset(mem_type),
 456                 .help   = "Backing type for IO buffers",
 457                 .def    = "malloc",
 458                 .posval = {
 459                           { .ival = "malloc",
 460                             .oval = MEM_MALLOC,
 461                             .help = "Use malloc(3) for IO buffers",
 462                           },
 463                           { .ival = "shm",
 464                             .oval = MEM_SHM,
 465                             .help = "Use shared memory segments for IO buffers",
 466                           },
 467 #ifdef FIO_HAVE_HUGETLB
 468                           { .ival = "shmhuge",
 469                             .oval = MEM_SHMHUGE,
 470                             .help = "Like shm, but use huge pages",
 471                           },
 472 #endif
 473                           { .ival = "mmap",
 474                             .oval = MEM_MMAP,
 475                             .help = "Use mmap(2) (file or anon) for IO buffers",
 476                           },
 477 #ifdef FIO_HAVE_HUGETLB
 478                           { .ival = "mmaphuge",
 479                             .oval = MEM_MMAPHUGE,
 480                             .help = "Like mmap, but use huge pages",
 481                           },
 482 #endif
 483                   },
 484         },
 485         {
 486                 .name   = "verify",
 487                 .type   = FIO_OPT_STR,
 488                 .off1   = td_var_offset(verify),
 489                 .help   = "Verify data written",
 490                 .def    = "0",
 491                 .posval = {
 492                           { .ival = "0",
 493                             .oval = VERIFY_NONE,
 494                             .help = "Don't do IO verification",
 495                           },
 496                           { .ival = "crc32",
 497                             .oval = VERIFY_CRC32,
 498                             .help = "Use crc32 checksums for verification",
 499                           },
 500                           { .ival = "md5",
 501                             .oval = VERIFY_MD5,
 502                             .help = "Use md5 checksums for verification",
 503                           },
 504                 },
 505         },
 506         {
 507                 .name   = "write_iolog",
 508                 .type   = FIO_OPT_STR_STORE,
 509                 .off1   = td_var_offset(write_iolog_file),
 510                 .help   = "Store IO pattern to file",
 511         },
 512         {
 513                 .name   = "read_iolog",
 514                 .type   = FIO_OPT_STR_STORE,
 515                 .off1   = td_var_offset(read_iolog_file),
 516                 .help   = "Playback IO pattern from file",
 517         },
 518         {
 519                 .name   = "exec_prerun",
 520                 .type   = FIO_OPT_STR_STORE,
 521                 .off1   = td_var_offset(exec_prerun),
 522                 .help   = "Execute this file prior to running job",
 523         },
 524         {
 525                 .name   = "exec_postrun",
 526                 .type   = FIO_OPT_STR_STORE,
 527                 .off1   = td_var_offset(exec_postrun),
 528                 .help   = "Execute this file after running job",
 529         },
 530 #ifdef FIO_HAVE_IOSCHED_SWITCH
 531         {
 532                 .name   = "ioscheduler",
 533                 .type   = FIO_OPT_STR_STORE,
 534                 .off1   = td_var_offset(ioscheduler),
 535                 .help   = "Use this IO scheduler on the backing device",
 536         },
 537 #endif
 538         {
 539                 .name   = "zonesize",
 540                 .type   = FIO_OPT_STR_VAL,
 541                 .off1   = td_var_offset(zone_size),
 542                 .help   = "Give size of an IO zone",
 543                 .def    = "0",
 544         },
 545         {
 546                 .name   = "zoneskip",
 547                 .type   = FIO_OPT_STR_VAL,
 548                 .off1   = td_var_offset(zone_skip),
 549                 .help   = "Space between IO zones",
 550                 .def    = "0",
 551         },
 552         {
 553                 .name   = "lockmem",
 554                 .type   = FIO_OPT_STR_VAL,
 555                 .cb     = str_lockmem_cb,
 556                 .help   = "Lock down this amount of memory",
 557                 .def    = "0",
 558         },
 559         {
 560                 .name   = "rwmixcycle",
 561                 .type   = FIO_OPT_INT,
 562                 .off1   = td_var_offset(rwmixcycle),
 563                 .help   = "Cycle period for mixed read/write workloads (msec)",
 564                 .def    = "500",
 565         },
 566         {
 567                 .name   = "rwmixread",
 568                 .type   = FIO_OPT_INT,
 569                 .off1   = td_var_offset(rwmixread),
 570                 .maxval = 100,
 571                 .help   = "Percentage of mixed workload that is reads",
 572                 .def    = "50",
 573         },
 574         {
 575                 .name   = "rwmixwrite",
 576                 .type   = FIO_OPT_INT,
 577                 .off1   = td_var_offset(rwmixwrite),
 578                 .maxval = 100,
 579                 .help   = "Percentage of mixed workload that is writes",
 580                 .def    = "50",
 581         },
 582         {
 583                 .name   = "nice",
 584                 .type   = FIO_OPT_INT,
 585                 .off1   = td_var_offset(nice),
 586                 .help   = "Set job CPU nice value",
 587                 .minval = -19,
 588                 .maxval = 20,
 589                 .def    = "0",
 590         },
 591 #ifdef FIO_HAVE_IOPRIO
 592         {
 593                 .name   = "prio",
 594                 .type   = FIO_OPT_INT,
 595                 .cb     = str_prio_cb,
 596                 .help   = "Set job IO priority value",
 597                 .minval = 0,
 598                 .maxval = 7,
 599         },
 600         {
 601                 .name   = "prioclass",
 602                 .type   = FIO_OPT_INT,
 603                 .cb     = str_prioclass_cb,
 604                 .help   = "Set job IO priority class",
 605                 .minval = 0,
 606                 .maxval = 3,
 607         },
 608 #endif
 609         {
 610                 .name   = "thinktime",
 611                 .type   = FIO_OPT_INT,
 612                 .off1   = td_var_offset(thinktime),
 613                 .help   = "Idle time between IO buffers (usec)",
 614                 .def    = "0",
 615         },
 616         {
 617                 .name   = "thinktime_spin",
 618                 .type   = FIO_OPT_INT,
 619                 .off1   = td_var_offset(thinktime_spin),
 620                 .help   = "Start think time by spinning this amount (usec)",
 621                 .def    = "0",
 622         },
 623         {
 624                 .name   = "thinktime_blocks",
 625                 .type   = FIO_OPT_INT,
 626                 .off1   = td_var_offset(thinktime_blocks),
 627                 .help   = "IO buffer period between 'thinktime'",
 628                 .def    = "1",
 629         },
 630         {
 631                 .name   = "rate",
 632                 .type   = FIO_OPT_INT,
 633                 .off1   = td_var_offset(rate),
 634                 .help   = "Set bandwidth rate",
 635         },
 636         {
 637                 .name   = "ratemin",
 638                 .type   = FIO_OPT_INT,
 639                 .off1   = td_var_offset(ratemin),
 640                 .help   = "The bottom limit accepted",
 641         },
 642         {
 643                 .name   = "ratecycle",
 644                 .type   = FIO_OPT_INT,
 645                 .off1   = td_var_offset(ratecycle),
 646                 .help   = "Window average for rate limits (msec)",
 647                 .def    = "1000",
 648         },
 649         {
 650                 .name   = "invalidate",
 651                 .type   = FIO_OPT_BOOL,
 652                 .off1   = td_var_offset(invalidate_cache),
 653                 .help   = "Invalidate buffer/page cache prior to running job",
 654                 .def    = "1",
 655         },
 656         {
 657                 .name   = "sync",
 658                 .type   = FIO_OPT_BOOL,
 659                 .off1   = td_var_offset(sync_io),
 660                 .help   = "Use O_SYNC for buffered writes",
 661                 .def    = "0",
 662         },
 663         {
 664                 .name   = "bwavgtime",
 665                 .type   = FIO_OPT_INT,
 666                 .off1   = td_var_offset(bw_avg_time),
 667                 .help   = "Time window over which to calculate bandwidth (msec)",
 668                 .def    = "500",
 669         },
 670         {
 671                 .name   = "create_serialize",
 672                 .type   = FIO_OPT_BOOL,
 673                 .off1   = td_var_offset(create_serialize),
 674                 .help   = "Serialize creating of job files",
 675                 .def    = "1",
 676         },
 677         {
 678                 .name   = "create_fsync",
 679                 .type   = FIO_OPT_BOOL,
 680                 .off1   = td_var_offset(create_fsync),
 681                 .help   = "Fsync file after creation",
 682                 .def    = "1",
 683         },
 684         {
 685                 .name   = "cpuload",
 686                 .type   = FIO_OPT_INT,
 687                 .off1   = td_var_offset(cpuload),
 688                 .help   = "Use this percentage of CPU",
 689         },
 690         {
 691                 .name   = "cpuchunks",
 692                 .type   = FIO_OPT_INT,
 693                 .off1   = td_var_offset(cpucycle),
 694                 .help   = "Length of the CPU burn cycles (usecs)",
 695                 .def    = "50000",
 696         },
 697 #ifdef FIO_HAVE_CPU_AFFINITY
 698         {
 699                 .name   = "cpumask",
 700                 .type   = FIO_OPT_INT,
 701                 .cb     = str_cpumask_cb,
 702                 .help   = "CPU affinity mask",
 703         },
 704 #endif
 705         {
 706                 .name   = "end_fsync",
 707                 .type   = FIO_OPT_BOOL,
 708                 .off1   = td_var_offset(end_fsync),
 709                 .help   = "Include fsync at the end of job",
 710                 .def    = "0",
 711         },
 712         {
 713                 .name   = "fsync_on_close",
 714                 .type   = FIO_OPT_BOOL,
 715                 .off1   = td_var_offset(fsync_on_close),
 716                 .help   = "fsync files on close",
 717                 .def    = "0",
 718         },
 719         {
 720                 .name   = "unlink",
 721                 .type   = FIO_OPT_BOOL,
 722                 .off1   = td_var_offset(unlink),
 723                 .help   = "Unlink created files after job has completed",
 724                 .def    = "0",
 725         },
 726         {
 727                 .name   = "exitall",
 728                 .type   = FIO_OPT_STR_SET,
 729                 .cb     = str_exitall_cb,
 730                 .help   = "Terminate all jobs when one exits",
 731         },
 732         {
 733                 .name   = "stonewall",
 734                 .type   = FIO_OPT_STR_SET,
 735                 .off1   = td_var_offset(stonewall),
 736                 .help   = "Insert a hard barrier between this job and previous",
 737         },
 738         {
 739                 .name   = "thread",
 740                 .type   = FIO_OPT_STR_SET,
 741                 .off1   = td_var_offset(use_thread),
 742                 .help   = "Use threads instead of forks",
 743         },
 744         {
 745                 .name   = "write_bw_log",
 746                 .type   = FIO_OPT_STR_SET,
 747                 .off1   = td_var_offset(write_bw_log),
 748                 .help   = "Write log of bandwidth during run",
 749         },
 750         {
 751                 .name   = "write_lat_log",
 752                 .type   = FIO_OPT_STR_SET,
 753                 .off1   = td_var_offset(write_lat_log),
 754                 .help   = "Write log of latency during run",
 755         },
 756         {
 757                 .name   = "hugepage-size",
 758                 .type   = FIO_OPT_STR_VAL,
 759                 .off1   = td_var_offset(hugepage_size),
 760                 .help   = "When using hugepages, specify size of each page",
 761                 .def    = __stringify(FIO_HUGE_PAGE),
 762         },
 763         {
 764                 .name   = "group_reporting",
 765                 .type   = FIO_OPT_STR_SET,
 766                 .off1   = td_var_offset(group_reporting),
 767                 .help   = "Do reporting on a per-group basis",
 768         },
 769         {
 770                 .name = NULL,
 771         },
 772 };
 773
 774 void fio_options_dup_and_init(struct option *long_options)
 775 {
 776         struct fio_option *o;
 777         unsigned int i;
 778
 779         options_init(options);
 780
 781         i = 0;
 782         while (long_options[i].name)
 783                 i++;
 784
 785         o = &options[0];
 786         while (o->name) {
 787                 long_options[i].name = o->name;
 788                 long_options[i].val = FIO_GETOPT_JOB;
 789                 if (o->type == FIO_OPT_STR_SET)
 790                         long_options[i].has_arg = no_argument;
 791                 else
 792                         long_options[i].has_arg = required_argument;
 793
 794                 i++;
 795                 o++;
 796                 assert(i < FIO_NR_OPTIONS);
 797         }
 798 }
 799
 800 int fio_option_parse(struct thread_data *td, const char *opt)
 801 {
 802         return parse_option(opt, options, td);
 803 }
 804
 805 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
 806 {
 807         return parse_cmd_option(opt, val, options, td);
 808 }
 809
 810 void fio_fill_default_options(struct thread_data *td)
 811 {
 812         fill_default_options(td, options);
 813 }
 814
 815 int fio_show_option_help(const char *opt)
 816 {
 817         return show_cmd_help(options, opt);
 818 }