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