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