init.c

   1 /*
   2  * This file contains job initialization and setup functions.
   3  */
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <fcntl.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <sys/ipc.h>
  12 #include <sys/shm.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15
  16 #include "fio.h"
  17 #include "parse.h"
  18 #include "smalloc.h"
  19 #include "filehash.h"
  20 #include "verify.h"
  21 #include "profile.h"
  22 #include "server.h"
  23
  24 #include "lib/getopt.h"
  25
  26 #include "fio_version.h"
  27
  28 #if FIO_PATCH > 0
  29 static char fio_version_string[] =      __fio_stringify(FIO_MAJOR) "."  \
  30                                         __fio_stringify(FIO_MINOR) "."  \
  31                                         __fio_stringify(FIO_PATCH);
  32 #else
  33 static char fio_version_string[] =      __fio_stringify(FIO_MAJOR) "."  \
  34                                         __fio_stringify(FIO_MINOR);
  35 #endif
  36
  37 #define FIO_RANDSEED            (0xb1899bedUL)
  38
  39 static char **ini_file;
  40 static int max_jobs = FIO_MAX_JOBS;
  41 static int dump_cmdline;
  42 static int def_timeout;
  43
  44 static struct thread_data def_thread;
  45 struct thread_data *threads = NULL;
  46
  47 int exitall_on_terminate = 0;
  48 int terse_output = 0;
  49 int eta_print;
  50 unsigned long long mlock_size = 0;
  51 FILE *f_out = NULL;
  52 FILE *f_err = NULL;
  53 char **job_sections = NULL;
  54 int nr_job_sections = 0;
  55 char *exec_profile = NULL;
  56 int warnings_fatal = 0;
  57 int terse_version = 2;
  58 int is_backend = 0;
  59 int nr_clients = 0;
  60 int log_syslog = 0;
  61
  62 int write_bw_log = 0;
  63 int read_only = 0;
  64
  65 static int write_lat_log;
  66
  67 static int prev_group_jobs;
  68
  69 unsigned long fio_debug = 0;
  70 unsigned int fio_debug_jobno = -1;
  71 unsigned int *fio_debug_jobp = NULL;
  72
  73 static char cmd_optstr[256];
  74 static int did_arg;
  75
  76 const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
  77         { .u.f  =  1.0 },
  78         { .u.f  =  5.0 },
  79         { .u.f  = 10.0 },
  80         { .u.f  = 20.0 },
  81         { .u.f  = 30.0 },
  82         { .u.f  = 40.0 },
  83         { .u.f  = 50.0 },
  84         { .u.f  = 60.0 },
  85         { .u.f  = 70.0 },
  86         { .u.f  = 80.0 },
  87         { .u.f  = 90.0 },
  88         { .u.f  = 95.0 },
  89         { .u.f  = 99.0 },
  90         { .u.f  = 99.5 },
  91         { .u.f  = 99.9 },
  92 };
  93
  94 #define FIO_CLIENT_FLAG         (1 << 16)
  95
  96 /*
  97  * Command line options. These will contain the above, plus a few
  98  * extra that only pertain to fio itself and not jobs.
  99  */
 100 static struct option l_opts[FIO_NR_OPTIONS] = {
 101         {
 102                 .name           = (char *) "output",
 103                 .has_arg        = required_argument,
 104                 .val            = 'o' | FIO_CLIENT_FLAG,
 105         },
 106         {
 107                 .name           = (char *) "timeout",
 108                 .has_arg        = required_argument,
 109                 .val            = 't' | FIO_CLIENT_FLAG,
 110         },
 111         {
 112                 .name           = (char *) "latency-log",
 113                 .has_arg        = required_argument,
 114                 .val            = 'l' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "bandwidth-log",
 118                 .has_arg        = required_argument,
 119                 .val            = 'b' | FIO_CLIENT_FLAG,
 120         },
 121         {
 122                 .name           = (char *) "minimal",
 123                 .has_arg        = optional_argument,
 124                 .val            = 'm' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "version",
 128                 .has_arg        = no_argument,
 129                 .val            = 'v' | FIO_CLIENT_FLAG,
 130         },
 131         {
 132                 .name           = (char *) "help",
 133                 .has_arg        = no_argument,
 134                 .val            = 'h' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name           = (char *) "cmdhelp",
 138                 .has_arg        = optional_argument,
 139                 .val            = 'c' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name           = (char *) "showcmd",
 143                 .has_arg        = no_argument,
 144                 .val            = 's' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "readonly",
 148                 .has_arg        = no_argument,
 149                 .val            = 'r' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "eta",
 153                 .has_arg        = required_argument,
 154                 .val            = 'e' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "debug",
 158                 .has_arg        = required_argument,
 159                 .val            = 'd' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "section",
 163                 .has_arg        = required_argument,
 164                 .val            = 'x' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "alloc-size",
 168                 .has_arg        = required_argument,
 169                 .val            = 'a' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "profile",
 173                 .has_arg        = required_argument,
 174                 .val            = 'p' | FIO_CLIENT_FLAG,
 175         },
 176         {
 177                 .name           = (char *) "warnings-fatal",
 178                 .has_arg        = no_argument,
 179                 .val            = 'w' | FIO_CLIENT_FLAG,
 180         },
 181         {
 182                 .name           = (char *) "max-jobs",
 183                 .has_arg        = required_argument,
 184                 .val            = 'j' | FIO_CLIENT_FLAG,
 185         },
 186         {
 187                 .name           = (char *) "terse-version",
 188                 .has_arg        = required_argument,
 189                 .val            = 'V' | FIO_CLIENT_FLAG,
 190         },
 191         {
 192                 .name           = (char *) "server",
 193                 .has_arg        = optional_argument,
 194                 .val            = 'S',
 195         },
 196         {       .name           = (char *) "daemonize",
 197                 .has_arg        = required_argument,
 198                 .val            = 'D',
 199         },
 200         {
 201                 .name           = (char *) "client",
 202                 .has_arg        = required_argument,
 203                 .val            = 'C',
 204         },
 205         {
 206                 .name           = NULL,
 207         },
 208 };
 209
 210 static void free_shm(void)
 211 {
 212         struct shmid_ds sbuf;
 213
 214         if (threads) {
 215                 void *tp = threads;
 216
 217                 threads = NULL;
 218                 file_hash_exit();
 219                 fio_debug_jobp = NULL;
 220                 shmdt(tp);
 221                 shmctl(shm_id, IPC_RMID, &sbuf);
 222         }
 223
 224         scleanup();
 225 }
 226
 227 /*
 228  * The thread area is shared between the main process and the job
 229  * threads/processes. So setup a shared memory segment that will hold
 230  * all the job info. We use the end of the region for keeping track of
 231  * open files across jobs, for file sharing.
 232  */
 233 static int setup_thread_area(void)
 234 {
 235         void *hash;
 236
 237         if (threads)
 238                 return 0;
 239
 240         /*
 241          * 1024 is too much on some machines, scale max_jobs if
 242          * we get a failure that looks like too large a shm segment
 243          */
 244         do {
 245                 size_t size = max_jobs * sizeof(struct thread_data);
 246
 247                 size += file_hash_size;
 248                 size += sizeof(unsigned int);
 249
 250                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 251                 if (shm_id != -1)
 252                         break;
 253                 if (errno != EINVAL) {
 254                         perror("shmget");
 255                         break;
 256                 }
 257
 258                 max_jobs >>= 1;
 259         } while (max_jobs);
 260
 261         if (shm_id == -1)
 262                 return 1;
 263
 264         threads = shmat(shm_id, NULL, 0);
 265         if (threads == (void *) -1) {
 266                 perror("shmat");
 267                 return 1;
 268         }
 269
 270         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 271         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 272         fio_debug_jobp = (void *) hash + file_hash_size;
 273         *fio_debug_jobp = -1;
 274         file_hash_init(hash);
 275         return 0;
 276 }
 277
 278 /*
 279  * Return a free job structure.
 280  */
 281 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 282 {
 283         struct thread_data *td;
 284
 285         if (global)
 286                 return &def_thread;
 287         if (setup_thread_area()) {
 288                 log_err("error: failed to setup shm segment\n");
 289                 return NULL;
 290         }
 291         if (thread_number >= max_jobs) {
 292                 log_err("error: maximum number of jobs (%d) reached.\n",
 293                                 max_jobs);
 294                 return NULL;
 295         }
 296
 297         td = &threads[thread_number++];
 298         *td = *parent;
 299
 300         td->o.uid = td->o.gid = -1U;
 301
 302         dup_files(td, parent);
 303         options_mem_dupe(td);
 304
 305         profile_add_hooks(td);
 306
 307         td->thread_number = thread_number;
 308         return td;
 309 }
 310
 311 static void put_job(struct thread_data *td)
 312 {
 313         if (td == &def_thread)
 314                 return;
 315
 316         profile_td_exit(td);
 317
 318         if (td->error)
 319                 log_info("fio: %s\n", td->verror);
 320
 321         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 322         thread_number--;
 323 }
 324
 325 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 326 {
 327         unsigned int bs = td->o.min_bs[ddir];
 328         unsigned long long bytes_per_sec;
 329
 330         assert(ddir_rw(ddir));
 331
 332         if (td->o.rate[ddir])
 333                 bytes_per_sec = td->o.rate[ddir];
 334         else
 335                 bytes_per_sec = td->o.rate_iops[ddir] * bs;
 336
 337         if (!bytes_per_sec) {
 338                 log_err("rate lower than supported\n");
 339                 return -1;
 340         }
 341
 342         td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
 343         td->rate_pending_usleep[ddir] = 0;
 344         return 0;
 345 }
 346
 347 static int setup_rate(struct thread_data *td)
 348 {
 349         int ret = 0;
 350
 351         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 352                 ret = __setup_rate(td, DDIR_READ);
 353         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 354                 ret |= __setup_rate(td, DDIR_WRITE);
 355
 356         return ret;
 357 }
 358
 359 static int fixed_block_size(struct thread_options *o)
 360 {
 361         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 362                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 363                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
 364 }
 365
 366 /*
 367  * Lazy way of fixing up options that depend on each other. We could also
 368  * define option callback handlers, but this is easier.
 369  */
 370 static int fixup_options(struct thread_data *td)
 371 {
 372         struct thread_options *o = &td->o;
 373         int ret = 0;
 374
 375 #ifndef FIO_HAVE_PSHARED_MUTEX
 376         if (!o->use_thread) {
 377                 log_info("fio: this platform does not support process shared"
 378                          " mutexes, forcing use of threads. Use the 'thread'"
 379                          " option to get rid of this warning.\n");
 380                 o->use_thread = 1;
 381                 ret = warnings_fatal;
 382         }
 383 #endif
 384
 385         if (o->write_iolog_file && o->read_iolog_file) {
 386                 log_err("fio: read iolog overrides write_iolog\n");
 387                 free(o->write_iolog_file);
 388                 o->write_iolog_file = NULL;
 389                 ret = warnings_fatal;
 390         }
 391
 392         /*
 393          * only really works for sequential io for now, and with 1 file
 394          */
 395         if (o->zone_size && td_random(td) && o->open_files == 1)
 396                 o->zone_size = 0;
 397
 398         /*
 399          * Reads can do overwrites, we always need to pre-create the file
 400          */
 401         if (td_read(td) || td_rw(td))
 402                 o->overwrite = 1;
 403
 404         if (!o->min_bs[DDIR_READ])
 405                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 406         if (!o->max_bs[DDIR_READ])
 407                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 408         if (!o->min_bs[DDIR_WRITE])
 409                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 410         if (!o->max_bs[DDIR_WRITE])
 411                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 412
 413         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 414
 415         /*
 416          * For random IO, allow blockalign offset other than min_bs.
 417          */
 418         if (!o->ba[DDIR_READ] || !td_random(td))
 419                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 420         if (!o->ba[DDIR_WRITE] || !td_random(td))
 421                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 422
 423         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 424             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
 425             !o->norandommap) {
 426                 log_err("fio: Any use of blockalign= turns off randommap\n");
 427                 o->norandommap = 1;
 428                 ret = warnings_fatal;
 429         }
 430
 431         if (!o->file_size_high)
 432                 o->file_size_high = o->file_size_low;
 433
 434         if (o->norandommap && o->verify != VERIFY_NONE
 435             && !fixed_block_size(o))  {
 436                 log_err("fio: norandommap given for variable block sizes, "
 437                         "verify disabled\n");
 438                 o->verify = VERIFY_NONE;
 439                 ret = warnings_fatal;
 440         }
 441         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 442                 log_err("fio: bs_unaligned may not work with raw io\n");
 443
 444         /*
 445          * thinktime_spin must be less than thinktime
 446          */
 447         if (o->thinktime_spin > o->thinktime)
 448                 o->thinktime_spin = o->thinktime;
 449
 450         /*
 451          * The low water mark cannot be bigger than the iodepth
 452          */
 453         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 454                 /*
 455                  * syslet work around - if the workload is sequential,
 456                  * we want to let the queue drain all the way down to
 457                  * avoid seeking between async threads
 458                  */
 459                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 460                         o->iodepth_low = 1;
 461                 else
 462                         o->iodepth_low = o->iodepth;
 463         }
 464
 465         /*
 466          * If batch number isn't set, default to the same as iodepth
 467          */
 468         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 469                 o->iodepth_batch = o->iodepth;
 470
 471         if (o->nr_files > td->files_index)
 472                 o->nr_files = td->files_index;
 473
 474         if (o->open_files > o->nr_files || !o->open_files)
 475                 o->open_files = o->nr_files;
 476
 477         if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
 478             ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
 479                 o->rate_iops_min[1]))) {
 480                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 481                 ret = 1;
 482         }
 483         if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
 484             (o->rate_iops[0] < o->rate_iops_min[0]) ||
 485             (o->rate_iops[1] < o->rate_iops_min[1])) {
 486                 log_err("fio: minimum rate exceeds rate\n");
 487                 ret = 1;
 488         }
 489
 490         if (!o->timeout && o->time_based) {
 491                 log_err("fio: time_based requires a runtime/timeout setting\n");
 492                 o->time_based = 0;
 493                 ret = warnings_fatal;
 494         }
 495
 496         if (o->fill_device && !o->size)
 497                 o->size = -1ULL;
 498
 499         if (o->verify != VERIFY_NONE) {
 500                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 501                         log_info("Multiple writers may overwrite blocks that "
 502                                 "belong to other jobs. This can cause "
 503                                 "verification failures.\n");
 504                         ret = warnings_fatal;
 505                 }
 506
 507                 o->refill_buffers = 1;
 508                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 509                     !o->verify_interval)
 510                         o->verify_interval = o->min_bs[DDIR_WRITE];
 511         }
 512
 513         if (o->pre_read) {
 514                 o->invalidate_cache = 0;
 515                 if (td->io_ops->flags & FIO_PIPEIO) {
 516                         log_info("fio: cannot pre-read files with an IO engine"
 517                                  " that isn't seekable. Pre-read disabled.\n");
 518                         ret = warnings_fatal;
 519                 }
 520         }
 521
 522 #ifndef FIO_HAVE_FDATASYNC
 523         if (o->fdatasync_blocks) {
 524                 log_info("fio: this platform does not support fdatasync()"
 525                          " falling back to using fsync().  Use the 'fsync'"
 526                          " option instead of 'fdatasync' to get rid of"
 527                          " this warning\n");
 528                 o->fsync_blocks = o->fdatasync_blocks;
 529                 o->fdatasync_blocks = 0;
 530                 ret = warnings_fatal;
 531         }
 532 #endif
 533
 534         return ret;
 535 }
 536
 537 /*
 538  * This function leaks the buffer
 539  */
 540 static char *to_kmg(unsigned int val)
 541 {
 542         char *buf = malloc(32);
 543         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 544         char *p = post;
 545
 546         do {
 547                 if (val & 1023)
 548                         break;
 549
 550                 val >>= 10;
 551                 p++;
 552         } while (*p);
 553
 554         snprintf(buf, 31, "%u%c", val, *p);
 555         return buf;
 556 }
 557
 558 /* External engines are specified by "external:name.o") */
 559 static const char *get_engine_name(const char *str)
 560 {
 561         char *p = strstr(str, ":");
 562
 563         if (!p)
 564                 return str;
 565
 566         p++;
 567         strip_blank_front(&p);
 568         strip_blank_end(p);
 569         return p;
 570 }
 571
 572 static int exists_and_not_file(const char *filename)
 573 {
 574         struct stat sb;
 575
 576         if (lstat(filename, &sb) == -1)
 577                 return 0;
 578
 579         /* \\.\ is the device namespace in Windows, where every file
 580          * is a device node */
 581         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 582                 return 0;
 583
 584         return 1;
 585 }
 586
 587 static void td_fill_rand_seeds_os(struct thread_data *td)
 588 {
 589         os_random_seed(td->rand_seeds[0], &td->bsrange_state);
 590         os_random_seed(td->rand_seeds[1], &td->verify_state);
 591         os_random_seed(td->rand_seeds[2], &td->rwmix_state);
 592
 593         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 594                 os_random_seed(td->rand_seeds[3], &td->next_file_state);
 595
 596         os_random_seed(td->rand_seeds[5], &td->file_size_state);
 597         os_random_seed(td->rand_seeds[6], &td->trim_state);
 598
 599         if (!td_random(td))
 600                 return;
 601
 602         if (td->o.rand_repeatable)
 603                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 604
 605         os_random_seed(td->rand_seeds[4], &td->random_state);
 606 }
 607
 608 static void td_fill_rand_seeds_internal(struct thread_data *td)
 609 {
 610         init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
 611         init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
 612         init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
 613
 614         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 615                 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
 616
 617         init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
 618         init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
 619
 620         if (!td_random(td))
 621                 return;
 622
 623         if (td->o.rand_repeatable)
 624                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 625
 626         init_rand_seed(&td->__random_state, td->rand_seeds[4]);
 627 }
 628
 629 void td_fill_rand_seeds(struct thread_data *td)
 630 {
 631         if (td->o.use_os_rand)
 632                 td_fill_rand_seeds_os(td);
 633         else
 634                 td_fill_rand_seeds_internal(td);
 635
 636         init_rand_seed(&td->buf_state, td->rand_seeds[7]);
 637 }
 638
 639 /*
 640  * Initialize the various random states we need (random io, block size ranges,
 641  * read/write mix, etc).
 642  */
 643 static int init_random_state(struct thread_data *td)
 644 {
 645         int fd;
 646
 647         fd = open("/dev/urandom", O_RDONLY);
 648         if (fd == -1) {
 649                 td_verror(td, errno, "open");
 650                 return 1;
 651         }
 652
 653         if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
 654             (int) sizeof(td->rand_seeds)) {
 655                 td_verror(td, EIO, "read");
 656                 close(fd);
 657                 return 1;
 658         }
 659
 660         close(fd);
 661         td_fill_rand_seeds(td);
 662         return 0;
 663 }
 664
 665 /*
 666  * Adds a job to the list of things todo. Sanitizes the various options
 667  * to make sure we don't have conflicts, and initializes various
 668  * members of td.
 669  */
 670 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 671 {
 672         const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
 673                                    "randread", "randwrite", "randrw" };
 674         unsigned int i;
 675         const char *engine;
 676         char fname[PATH_MAX];
 677         int numjobs, file_alloced;
 678
 679         /*
 680          * the def_thread is just for options, it's not a real job
 681          */
 682         if (td == &def_thread)
 683                 return 0;
 684
 685         /*
 686          * if we are just dumping the output command line, don't add the job
 687          */
 688         if (dump_cmdline) {
 689                 put_job(td);
 690                 return 0;
 691         }
 692
 693         if (profile_td_init(td))
 694                 goto err;
 695
 696         engine = get_engine_name(td->o.ioengine);
 697         td->io_ops = load_ioengine(td, engine);
 698         if (!td->io_ops) {
 699                 log_err("fio: failed to load engine %s\n", engine);
 700                 goto err;
 701         }
 702
 703         if (td->o.use_thread)
 704                 nr_thread++;
 705         else
 706                 nr_process++;
 707
 708         if (td->o.odirect)
 709                 td->io_ops->flags |= FIO_RAWIO;
 710
 711         file_alloced = 0;
 712         if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
 713                 file_alloced = 1;
 714
 715                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 716                         add_file(td, jobname);
 717                 else {
 718                         for (i = 0; i < td->o.nr_files; i++) {
 719                                 sprintf(fname, "%s.%d.%d", jobname,
 720                                                         td->thread_number, i);
 721                                 add_file(td, fname);
 722                         }
 723                 }
 724         }
 725
 726         if (fixup_options(td))
 727                 goto err;
 728
 729         if (td->io_ops->flags & FIO_DISKLESSIO) {
 730                 struct fio_file *f;
 731
 732                 for_each_file(td, f, i)
 733                         f->real_file_size = -1ULL;
 734         }
 735
 736         td->mutex = fio_mutex_init(0);
 737
 738         td->ts.clat_percentiles = td->o.clat_percentiles;
 739         if (td->o.overwrite_plist)
 740                 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
 741         else
 742                 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
 743
 744         td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
 745         td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
 746         td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
 747         td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 748         td->ddir_seq_nr = td->o.ddir_seq_nr;
 749
 750         if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
 751                 prev_group_jobs = 0;
 752                 groupid++;
 753         }
 754
 755         td->groupid = groupid;
 756         prev_group_jobs++;
 757
 758         if (init_random_state(td))
 759                 goto err;
 760
 761         if (setup_rate(td))
 762                 goto err;
 763
 764         if (td->o.write_lat_log) {
 765                 setup_log(&td->lat_log);
 766                 setup_log(&td->slat_log);
 767                 setup_log(&td->clat_log);
 768         }
 769         if (td->o.write_bw_log)
 770                 setup_log(&td->bw_log);
 771         if (td->o.write_iops_log)
 772                 setup_log(&td->iops_log);
 773
 774         if (!td->o.name)
 775                 td->o.name = strdup(jobname);
 776
 777         if (!terse_output) {
 778                 if (!job_add_num) {
 779                         if (!strcmp(td->io_ops->name, "cpuio")) {
 780                                 log_info("%s: ioengine=cpu, cpuload=%u,"
 781                                          " cpucycle=%u\n", td->o.name,
 782                                                         td->o.cpuload,
 783                                                         td->o.cpucycle);
 784                         } else {
 785                                 char *c1, *c2, *c3, *c4;
 786
 787                                 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
 788                                 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
 789                                 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
 790                                 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 791
 792                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
 793                                          " ioengine=%s, iodepth=%u\n",
 794                                                 td->o.name, td->groupid,
 795                                                 ddir_str[td->o.td_ddir],
 796                                                 c1, c2, c3, c4,
 797                                                 td->io_ops->name,
 798                                                 td->o.iodepth);
 799
 800                                 free(c1);
 801                                 free(c2);
 802                                 free(c3);
 803                                 free(c4);
 804                         }
 805                 } else if (job_add_num == 1)
 806                         log_info("...\n");
 807         }
 808
 809         /*
 810          * recurse add identical jobs, clear numjobs and stonewall options
 811          * as they don't apply to sub-jobs
 812          */
 813         numjobs = td->o.numjobs;
 814         while (--numjobs) {
 815                 struct thread_data *td_new = get_new_job(0, td);
 816
 817                 if (!td_new)
 818                         goto err;
 819
 820                 td_new->o.numjobs = 1;
 821                 td_new->o.stonewall = 0;
 822                 td_new->o.new_group = 0;
 823
 824                 if (file_alloced) {
 825                         td_new->o.filename = NULL;
 826                         td_new->files_index = 0;
 827                         td_new->files_size = 0;
 828                         td_new->files = NULL;
 829                 }
 830
 831                 job_add_num = numjobs - 1;
 832
 833                 if (add_job(td_new, jobname, job_add_num))
 834                         goto err;
 835         }
 836
 837         return 0;
 838 err:
 839         put_job(td);
 840         return -1;
 841 }
 842
 843 /*
 844  * Parse as if 'o' was a command line
 845  */
 846 void add_job_opts(const char **o)
 847 {
 848         struct thread_data *td, *td_parent;
 849         int i, in_global = 1;
 850         char jobname[32];
 851
 852         i = 0;
 853         td_parent = td = NULL;
 854         while (o[i]) {
 855                 if (!strncmp(o[i], "name", 4)) {
 856                         in_global = 0;
 857                         if (td)
 858                                 add_job(td, jobname, 0);
 859                         td = NULL;
 860                         sprintf(jobname, "%s", o[i] + 5);
 861                 }
 862                 if (in_global && !td_parent)
 863                         td_parent = get_new_job(1, &def_thread);
 864                 else if (!in_global && !td) {
 865                         if (!td_parent)
 866                                 td_parent = &def_thread;
 867                         td = get_new_job(0, td_parent);
 868                 }
 869                 if (in_global)
 870                         fio_options_parse(td_parent, (char **) &o[i], 1);
 871                 else
 872                         fio_options_parse(td, (char **) &o[i], 1);
 873                 i++;
 874         }
 875
 876         if (td)
 877                 add_job(td, jobname, 0);
 878 }
 879
 880 static int skip_this_section(const char *name)
 881 {
 882         int i;
 883
 884         if (!nr_job_sections)
 885                 return 0;
 886         if (!strncmp(name, "global", 6))
 887                 return 0;
 888
 889         for (i = 0; i < nr_job_sections; i++)
 890                 if (!strcmp(job_sections[i], name))
 891                         return 0;
 892
 893         return 1;
 894 }
 895
 896 static int is_empty_or_comment(char *line)
 897 {
 898         unsigned int i;
 899
 900         for (i = 0; i < strlen(line); i++) {
 901                 if (line[i] == ';')
 902                         return 1;
 903                 if (line[i] == '#')
 904                         return 1;
 905                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
 906                         return 0;
 907         }
 908
 909         return 1;
 910 }
 911
 912 /*
 913  * This is our [ini] type file parser.
 914  */
 915 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
 916 {
 917         unsigned int global;
 918         struct thread_data *td;
 919         char *string, *name;
 920         FILE *f;
 921         char *p;
 922         int ret = 0, stonewall;
 923         int first_sect = 1;
 924         int skip_fgets = 0;
 925         int inside_skip = 0;
 926         char **opts;
 927         int i, alloc_opts, num_opts;
 928
 929         if (is_buf)
 930                 f = NULL;
 931         else {
 932                 if (!strcmp(file, "-"))
 933                         f = stdin;
 934                 else
 935                         f = fopen(file, "r");
 936
 937                 if (!f) {
 938                         perror("fopen job file");
 939                         return 1;
 940                 }
 941         }
 942
 943         string = malloc(4096);
 944
 945         /*
 946          * it's really 256 + small bit, 280 should suffice
 947          */
 948         name = malloc(280);
 949         memset(name, 0, 280);
 950
 951         alloc_opts = 8;
 952         opts = malloc(sizeof(char *) * alloc_opts);
 953         num_opts = 0;
 954
 955         stonewall = stonewall_flag;
 956         do {
 957                 /*
 958                  * if skip_fgets is set, we already have loaded a line we
 959                  * haven't handled.
 960                  */
 961                 if (!skip_fgets) {
 962                         if (is_buf)
 963                                 p = strsep(&file, "\n");
 964                         else
 965                                 p = fgets(string, 4095, f);
 966                         if (!p)
 967                                 break;
 968                 }
 969
 970                 skip_fgets = 0;
 971                 strip_blank_front(&p);
 972                 strip_blank_end(p);
 973
 974                 if (is_empty_or_comment(p))
 975                         continue;
 976                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
 977                         if (inside_skip)
 978                                 continue;
 979                         log_err("fio: option <%s> outside of [] job section\n",
 980                                                                         p);
 981                         break;
 982                 }
 983
 984                 name[strlen(name) - 1] = '\0';
 985
 986                 if (skip_this_section(name)) {
 987                         inside_skip = 1;
 988                         continue;
 989                 } else
 990                         inside_skip = 0;
 991
 992                 global = !strncmp(name, "global", 6);
 993
 994                 if (dump_cmdline) {
 995                         if (first_sect)
 996                                 log_info("fio ");
 997                         if (!global)
 998                                 log_info("--name=%s ", name);
 999                         first_sect = 0;
1000                 }
1001
1002                 td = get_new_job(global, &def_thread);
1003                 if (!td) {
1004                         ret = 1;
1005                         break;
1006                 }
1007
1008                 /*
1009                  * Seperate multiple job files by a stonewall
1010                  */
1011                 if (!global && stonewall) {
1012                         td->o.stonewall = stonewall;
1013                         stonewall = 0;
1014                 }
1015
1016                 num_opts = 0;
1017                 memset(opts, 0, alloc_opts * sizeof(char *));
1018
1019                 while (1) {
1020                         if (is_buf)
1021                                 p = strsep(&file, "\n");
1022                         else
1023                                 p = fgets(string, 4096, f);
1024                         if (!p)
1025                                 break;
1026
1027                         if (is_empty_or_comment(p))
1028                                 continue;
1029
1030                         strip_blank_front(&p);
1031
1032                         /*
1033                          * new section, break out and make sure we don't
1034                          * fgets() a new line at the top.
1035                          */
1036                         if (p[0] == '[') {
1037                                 skip_fgets = 1;
1038                                 break;
1039                         }
1040
1041                         strip_blank_end(p);
1042
1043                         if (num_opts == alloc_opts) {
1044                                 alloc_opts <<= 1;
1045                                 opts = realloc(opts,
1046                                                 alloc_opts * sizeof(char *));
1047                         }
1048
1049                         opts[num_opts] = strdup(p);
1050                         num_opts++;
1051                 }
1052
1053                 ret = fio_options_parse(td, opts, num_opts);
1054                 if (!ret) {
1055                         if (dump_cmdline)
1056                                 for (i = 0; i < num_opts; i++)
1057                                         log_info("--%s ", opts[i]);
1058
1059                         ret = add_job(td, name, 0);
1060                 } else {
1061                         log_err("fio: job %s dropped\n", name);
1062                         put_job(td);
1063                 }
1064
1065                 for (i = 0; i < num_opts; i++)
1066                         free(opts[i]);
1067                 num_opts = 0;
1068         } while (!ret);
1069
1070         if (dump_cmdline)
1071                 log_info("\n");
1072
1073         for (i = 0; i < num_opts; i++)
1074                 free(opts[i]);
1075
1076         free(string);
1077         free(name);
1078         free(opts);
1079         if (!is_buf && f != stdin)
1080                 fclose(f);
1081         return ret;
1082 }
1083
1084 static int fill_def_thread(void)
1085 {
1086         memset(&def_thread, 0, sizeof(def_thread));
1087
1088         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1089         def_thread.o.timeout = def_timeout;
1090
1091         /*
1092          * fill default options
1093          */
1094         fio_fill_default_options(&def_thread);
1095         return 0;
1096 }
1097
1098 static void usage(const char *name)
1099 {
1100         printf("fio %s\n", fio_version_string);
1101         printf("%s [options] [job options] <job file(s)>\n", name);
1102         printf("\t--debug=options\tEnable debug logging\n");
1103         printf("\t--output\tWrite output to file\n");
1104         printf("\t--timeout\tRuntime in seconds\n");
1105         printf("\t--latency-log\tGenerate per-job latency logs\n");
1106         printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1107         printf("\t--minimal\tMinimal (terse) output\n");
1108         printf("\t--version\tPrint version info and exit\n");
1109         printf("\t--terse-version=x Terse version output format\n");
1110         printf("\t--help\t\tPrint this page\n");
1111         printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
1112                 " them\n");
1113         printf("\t--showcmd\tTurn a job file into command line options\n");
1114         printf("\t--eta=when\tWhen ETA estimate should be printed\n");
1115         printf("\t          \tMay be \"always\", \"never\" or \"auto\"\n");
1116         printf("\t--readonly\tTurn on safety read-only checks, preventing"
1117                 " writes\n");
1118         printf("\t--section=name\tOnly run specified section in job file\n");
1119         printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
1120                 " (def 1024)\n");
1121         printf("\t--warnings-fatal Fio parser warnings are fatal\n");
1122         printf("\t--max-jobs\tMaximum number of threads/processes to support\n");
1123         printf("\t--server=args\tStart a backend fio server\n");
1124         printf("\t--daemonize=pidfile Background fio server, write pid to file\n");
1125         printf("\t--client=hostname Talk to remote backend fio server at hostname\n");
1126         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1127         printf("\n                   Jens Axboe <jaxboe@fusionio.com>\n");
1128 }
1129
1130 #ifdef FIO_INC_DEBUG
1131 struct debug_level debug_levels[] = {
1132         { .name = "process",    .shift = FD_PROCESS, },
1133         { .name = "file",       .shift = FD_FILE, },
1134         { .name = "io",         .shift = FD_IO, },
1135         { .name = "mem",        .shift = FD_MEM, },
1136         { .name = "blktrace",   .shift = FD_BLKTRACE },
1137         { .name = "verify",     .shift = FD_VERIFY },
1138         { .name = "random",     .shift = FD_RANDOM },
1139         { .name = "parse",      .shift = FD_PARSE },
1140         { .name = "diskutil",   .shift = FD_DISKUTIL },
1141         { .name = "job",        .shift = FD_JOB },
1142         { .name = "mutex",      .shift = FD_MUTEX },
1143         { .name = "profile",    .shift = FD_PROFILE },
1144         { .name = "time",       .shift = FD_TIME },
1145         { .name = "net",        .shift = FD_NET },
1146         { .name = NULL, },
1147 };
1148
1149 static int set_debug(const char *string)
1150 {
1151         struct debug_level *dl;
1152         char *p = (char *) string;
1153         char *opt;
1154         int i;
1155
1156         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1157                 log_info("fio: dumping debug options:");
1158                 for (i = 0; debug_levels[i].name; i++) {
1159                         dl = &debug_levels[i];
1160                         log_info("%s,", dl->name);
1161                 }
1162                 log_info("all\n");
1163                 return 1;
1164         }
1165
1166         while ((opt = strsep(&p, ",")) != NULL) {
1167                 int found = 0;
1168
1169                 if (!strncmp(opt, "all", 3)) {
1170                         log_info("fio: set all debug options\n");
1171                         fio_debug = ~0UL;
1172                         continue;
1173                 }
1174
1175                 for (i = 0; debug_levels[i].name; i++) {
1176                         dl = &debug_levels[i];
1177                         found = !strncmp(opt, dl->name, strlen(dl->name));
1178                         if (!found)
1179                                 continue;
1180
1181                         if (dl->shift == FD_JOB) {
1182                                 opt = strchr(opt, ':');
1183                                 if (!opt) {
1184                                         log_err("fio: missing job number\n");
1185                                         break;
1186                                 }
1187                                 opt++;
1188                                 fio_debug_jobno = atoi(opt);
1189                                 log_info("fio: set debug jobno %d\n",
1190                                                         fio_debug_jobno);
1191                         } else {
1192                                 log_info("fio: set debug option %s\n", opt);
1193                                 fio_debug |= (1UL << dl->shift);
1194                         }
1195                         break;
1196                 }
1197
1198                 if (!found)
1199                         log_err("fio: debug mask %s not found\n", opt);
1200         }
1201         return 0;
1202 }
1203 #else
1204 static int set_debug(const char *string)
1205 {
1206         log_err("fio: debug tracing not included in build\n");
1207         return 1;
1208 }
1209 #endif
1210
1211 static void fio_options_fill_optstring(void)
1212 {
1213         char *ostr = cmd_optstr;
1214         int i, c;
1215
1216         c = i = 0;
1217         while (l_opts[i].name) {
1218                 ostr[c++] = l_opts[i].val;
1219                 if (l_opts[i].has_arg == required_argument)
1220                         ostr[c++] = ':';
1221                 else if (l_opts[i].has_arg == optional_argument) {
1222                         ostr[c++] = ':';
1223                         ostr[c++] = ':';
1224                 }
1225                 i++;
1226         }
1227         ostr[c] = '\0';
1228 }
1229
1230 static int client_flag_set(char c)
1231 {
1232         int i;
1233
1234         i = 0;
1235         while (l_opts[i].name) {
1236                 int val = l_opts[i].val;
1237
1238                 if (c == (val & 0xff))
1239                         return (val & FIO_CLIENT_FLAG);
1240
1241                 i++;
1242         }
1243
1244         return 0;
1245 }
1246
1247 void parse_cmd_client(void *client, char *opt)
1248 {
1249         fio_client_add_cmd_option(client, opt);
1250 }
1251
1252 int parse_cmd_line(int argc, char *argv[])
1253 {
1254         struct thread_data *td = NULL;
1255         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1256         char *ostr = cmd_optstr;
1257         void *pid_file = NULL;
1258         void *cur_client = NULL;
1259         int backend = 0;
1260
1261         /*
1262          * Reset optind handling, since we may call this multiple times
1263          * for the backend.
1264          */
1265         optind = 1;
1266
1267         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1268                 did_arg = 1;
1269
1270                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1271                         parse_cmd_client(cur_client, argv[optind - 1]);
1272                         c &= ~FIO_CLIENT_FLAG;
1273                 }
1274
1275                 switch (c) {
1276                 case 'a':
1277                         smalloc_pool_size = atoi(optarg);
1278                         break;
1279                 case 't':
1280                         def_timeout = atoi(optarg);
1281                         break;
1282                 case 'l':
1283                         write_lat_log = 1;
1284                         break;
1285                 case 'b':
1286                         write_bw_log = 1;
1287                         break;
1288                 case 'o':
1289                         f_out = fopen(optarg, "w+");
1290                         if (!f_out) {
1291                                 perror("fopen output");
1292                                 exit(1);
1293                         }
1294                         f_err = f_out;
1295                         break;
1296                 case 'm':
1297                         terse_output = 1;
1298                         break;
1299                 case 'h':
1300                         if (!cur_client) {
1301                                 usage(argv[0]);
1302                                 do_exit++;
1303                         }
1304                         break;
1305                 case 'c':
1306                         if (!cur_client) {
1307                                 fio_show_option_help(optarg);
1308                                 do_exit++;
1309                         }
1310                         break;
1311                 case 's':
1312                         dump_cmdline = 1;
1313                         break;
1314                 case 'r':
1315                         read_only = 1;
1316                         break;
1317                 case 'v':
1318                         if (!cur_client) {
1319                                 log_info("fio %s\n", fio_version_string);
1320                                 do_exit++;
1321                         }
1322                         break;
1323                 case 'V':
1324                         terse_version = atoi(optarg);
1325                         if (terse_version != 2) {
1326                                 log_err("fio: bad terse version format\n");
1327                                 exit_val = 1;
1328                                 do_exit++;
1329                         }
1330                         break;
1331                 case 'e':
1332                         if (!strcmp("always", optarg))
1333                                 eta_print = FIO_ETA_ALWAYS;
1334                         else if (!strcmp("never", optarg))
1335                                 eta_print = FIO_ETA_NEVER;
1336                         break;
1337                 case 'd':
1338                         if (set_debug(optarg))
1339                                 do_exit++;
1340                         break;
1341                 case 'x': {
1342                         size_t new_size;
1343
1344                         if (!strcmp(optarg, "global")) {
1345                                 log_err("fio: can't use global as only "
1346                                         "section\n");
1347                                 do_exit++;
1348                                 exit_val = 1;
1349                                 break;
1350                         }
1351                         new_size = (nr_job_sections + 1) * sizeof(char *);
1352                         job_sections = realloc(job_sections, new_size);
1353                         job_sections[nr_job_sections] = strdup(optarg);
1354                         nr_job_sections++;
1355                         break;
1356                         }
1357                 case 'p':
1358                         exec_profile = strdup(optarg);
1359                         break;
1360                 case FIO_GETOPT_JOB: {
1361                         const char *opt = l_opts[lidx].name;
1362                         char *val = optarg;
1363
1364                         if (!strncmp(opt, "name", 4) && td) {
1365                                 ret = add_job(td, td->o.name ?: "fio", 0);
1366                                 if (ret)
1367                                         return 0;
1368                                 td = NULL;
1369                         }
1370                         if (!td) {
1371                                 int is_section = !strncmp(opt, "name", 4);
1372                                 int global = 0;
1373
1374                                 if (!is_section || !strncmp(val, "global", 6))
1375                                         global = 1;
1376
1377                                 if (is_section && skip_this_section(val))
1378                                         continue;
1379
1380                                 td = get_new_job(global, &def_thread);
1381                                 if (!td)
1382                                         return 0;
1383                         }
1384
1385                         ret = fio_cmd_option_parse(td, opt, val);
1386                         break;
1387                 }
1388                 case 'w':
1389                         warnings_fatal = 1;
1390                         break;
1391                 case 'j':
1392                         max_jobs = atoi(optarg);
1393                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1394                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
1395                                 do_exit++;
1396                                 exit_val = 1;
1397                         }
1398                         break;
1399                 case 'S':
1400                         if (nr_clients) {
1401                                 log_err("fio: can't be both client and server\n");
1402                                 do_exit++;
1403                                 exit_val = 1;
1404                                 break;
1405                         }
1406                         if (optarg)
1407                                 fio_server_set_arg(optarg);
1408                         is_backend = 1;
1409                         backend = 1;
1410                         break;
1411                 case 'D':
1412                         pid_file = strdup(optarg);
1413                         break;
1414                 case 'C':
1415                         if (is_backend) {
1416                                 log_err("fio: can't be both client and server\n");
1417                                 do_exit++;
1418                                 exit_val = 1;
1419                                 break;
1420                         }
1421                         if (fio_client_add(optarg, &cur_client)) {
1422                                 log_err("fio: failed adding client %s\n", optarg);
1423                                 do_exit++;
1424                                 exit_val = 1;
1425                                 break;
1426                         }
1427                         break;
1428                 default:
1429                         do_exit++;
1430                         exit_val = 1;
1431                         break;
1432                 }
1433                 if (do_exit)
1434                         break;
1435         }
1436
1437         if (do_exit) {
1438                 if (exit_val && !(is_backend || nr_clients))
1439                         exit(exit_val);
1440         }
1441
1442         if (nr_clients && fio_clients_connect()) {
1443                 do_exit++;
1444                 exit_val = 1;
1445                 return -1;
1446         }
1447
1448         if (is_backend && backend)
1449                 return fio_start_server(pid_file);
1450
1451         if (td) {
1452                 if (!ret)
1453                         ret = add_job(td, td->o.name ?: "fio", 0);
1454         }
1455
1456         while (!ret && optind < argc) {
1457                 ini_idx++;
1458                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1459                 ini_file[ini_idx - 1] = strdup(argv[optind]);
1460                 optind++;
1461         }
1462
1463         return ini_idx;
1464 }
1465
1466 int parse_options(int argc, char *argv[])
1467 {
1468         int job_files, i;
1469
1470         f_out = stdout;
1471         f_err = stderr;
1472
1473         fio_options_fill_optstring();
1474         fio_options_dup_and_init(l_opts);
1475
1476         atexit(free_shm);
1477
1478         if (fill_def_thread())
1479                 return 1;
1480
1481         job_files = parse_cmd_line(argc, argv);
1482
1483         if (job_files > 0) {
1484                 for (i = 0; i < job_files; i++) {
1485                         if (fill_def_thread())
1486                                 return 1;
1487                         if (nr_clients) {
1488                                 if (fio_clients_send_ini(ini_file[i]))
1489                                         return 1;
1490                                 free(ini_file[i]);
1491                         } else if (!is_backend) {
1492                                 if (parse_jobs_ini(ini_file[i], 0, i))
1493                                         return 1;
1494                                 free(ini_file[i]);
1495                         }
1496                 }
1497         }
1498
1499         free(ini_file);
1500         options_mem_free(&def_thread);
1501
1502         if (!thread_number) {
1503                 if (dump_cmdline)
1504                         return 0;
1505                 if (exec_profile)
1506                         return 0;
1507                 if (is_backend || nr_clients)
1508                         return 0;
1509                 if (did_arg)
1510                         return 0;
1511
1512                 log_err("No jobs(s) defined\n\n");
1513
1514                 if (!did_arg) {
1515                         usage(argv[0]);
1516                         return 1;
1517                 }
1518
1519                 return 0;
1520         }
1521
1522         if (def_thread.o.gtod_offload) {
1523                 fio_gtod_init();
1524                 fio_gtod_offload = 1;
1525                 fio_gtod_cpu = def_thread.o.gtod_cpu;
1526         }
1527
1528         log_info("fio %s\n", fio_version_string);
1529         return 0;
1530 }