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