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 const char fio_version_string[] =       __fio_stringify(FIO_MAJOR) "."  \
  30                                         __fio_stringify(FIO_MINOR) "."  \
  31                                         __fio_stringify(FIO_PATCH);
  32 #else
  33 const 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 = 3;
  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         fio_options_free(td);
 322
 323         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 324         thread_number--;
 325 }
 326
 327 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 328 {
 329         unsigned int bs = td->o.min_bs[ddir];
 330         unsigned long long bytes_per_sec;
 331
 332         assert(ddir_rw(ddir));
 333
 334         if (td->o.rate[ddir])
 335                 bytes_per_sec = td->o.rate[ddir];
 336         else
 337                 bytes_per_sec = td->o.rate_iops[ddir] * bs;
 338
 339         if (!bytes_per_sec) {
 340                 log_err("rate lower than supported\n");
 341                 return -1;
 342         }
 343
 344         td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
 345         td->rate_pending_usleep[ddir] = 0;
 346         return 0;
 347 }
 348
 349 static int setup_rate(struct thread_data *td)
 350 {
 351         int ret = 0;
 352
 353         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 354                 ret = __setup_rate(td, DDIR_READ);
 355         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 356                 ret |= __setup_rate(td, DDIR_WRITE);
 357
 358         return ret;
 359 }
 360
 361 static int fixed_block_size(struct thread_options *o)
 362 {
 363         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 364                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 365                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
 366 }
 367
 368 /*
 369  * Lazy way of fixing up options that depend on each other. We could also
 370  * define option callback handlers, but this is easier.
 371  */
 372 static int fixup_options(struct thread_data *td)
 373 {
 374         struct thread_options *o = &td->o;
 375         int ret = 0;
 376
 377 #ifndef FIO_HAVE_PSHARED_MUTEX
 378         if (!o->use_thread) {
 379                 log_info("fio: this platform does not support process shared"
 380                          " mutexes, forcing use of threads. Use the 'thread'"
 381                          " option to get rid of this warning.\n");
 382                 o->use_thread = 1;
 383                 ret = warnings_fatal;
 384         }
 385 #endif
 386
 387         if (o->write_iolog_file && o->read_iolog_file) {
 388                 log_err("fio: read iolog overrides write_iolog\n");
 389                 free(o->write_iolog_file);
 390                 o->write_iolog_file = NULL;
 391                 ret = warnings_fatal;
 392         }
 393
 394         /*
 395          * only really works for sequential io for now, and with 1 file
 396          */
 397         if (o->zone_size && td_random(td) && o->open_files == 1)
 398                 o->zone_size = 0;
 399
 400         /*
 401          * Reads can do overwrites, we always need to pre-create the file
 402          */
 403         if (td_read(td) || td_rw(td))
 404                 o->overwrite = 1;
 405
 406         if (!o->min_bs[DDIR_READ])
 407                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 408         if (!o->max_bs[DDIR_READ])
 409                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 410         if (!o->min_bs[DDIR_WRITE])
 411                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 412         if (!o->max_bs[DDIR_WRITE])
 413                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 414
 415         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 416
 417         /*
 418          * For random IO, allow blockalign offset other than min_bs.
 419          */
 420         if (!o->ba[DDIR_READ] || !td_random(td))
 421                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 422         if (!o->ba[DDIR_WRITE] || !td_random(td))
 423                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 424
 425         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 426             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
 427             !o->norandommap) {
 428                 log_err("fio: Any use of blockalign= turns off randommap\n");
 429                 o->norandommap = 1;
 430                 ret = warnings_fatal;
 431         }
 432
 433         if (!o->file_size_high)
 434                 o->file_size_high = o->file_size_low;
 435
 436         if (o->norandommap && o->verify != VERIFY_NONE
 437             && !fixed_block_size(o))  {
 438                 log_err("fio: norandommap given for variable block sizes, "
 439                         "verify disabled\n");
 440                 o->verify = VERIFY_NONE;
 441                 ret = warnings_fatal;
 442         }
 443         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 444                 log_err("fio: bs_unaligned may not work with raw io\n");
 445
 446         /*
 447          * thinktime_spin must be less than thinktime
 448          */
 449         if (o->thinktime_spin > o->thinktime)
 450                 o->thinktime_spin = o->thinktime;
 451
 452         /*
 453          * The low water mark cannot be bigger than the iodepth
 454          */
 455         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 456                 /*
 457                  * syslet work around - if the workload is sequential,
 458                  * we want to let the queue drain all the way down to
 459                  * avoid seeking between async threads
 460                  */
 461                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 462                         o->iodepth_low = 1;
 463                 else
 464                         o->iodepth_low = o->iodepth;
 465         }
 466
 467         /*
 468          * If batch number isn't set, default to the same as iodepth
 469          */
 470         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 471                 o->iodepth_batch = o->iodepth;
 472
 473         if (o->nr_files > td->files_index)
 474                 o->nr_files = td->files_index;
 475
 476         if (o->open_files > o->nr_files || !o->open_files)
 477                 o->open_files = o->nr_files;
 478
 479         if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
 480             ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
 481                 o->rate_iops_min[1]))) {
 482                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 483                 ret = 1;
 484         }
 485         if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
 486             (o->rate_iops[0] < o->rate_iops_min[0]) ||
 487             (o->rate_iops[1] < o->rate_iops_min[1])) {
 488                 log_err("fio: minimum rate exceeds rate\n");
 489                 ret = 1;
 490         }
 491
 492         if (!o->timeout && o->time_based) {
 493                 log_err("fio: time_based requires a runtime/timeout setting\n");
 494                 o->time_based = 0;
 495                 ret = warnings_fatal;
 496         }
 497
 498         if (o->fill_device && !o->size)
 499                 o->size = -1ULL;
 500
 501         if (o->verify != VERIFY_NONE) {
 502                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 503                         log_info("Multiple writers may overwrite blocks that "
 504                                 "belong to other jobs. This can cause "
 505                                 "verification failures.\n");
 506                         ret = warnings_fatal;
 507                 }
 508
 509                 o->refill_buffers = 1;
 510                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 511                     !o->verify_interval)
 512                         o->verify_interval = o->min_bs[DDIR_WRITE];
 513         }
 514
 515         if (o->pre_read) {
 516                 o->invalidate_cache = 0;
 517                 if (td->io_ops->flags & FIO_PIPEIO) {
 518                         log_info("fio: cannot pre-read files with an IO engine"
 519                                  " that isn't seekable. Pre-read disabled.\n");
 520                         ret = warnings_fatal;
 521                 }
 522         }
 523
 524 #ifndef FIO_HAVE_FDATASYNC
 525         if (o->fdatasync_blocks) {
 526                 log_info("fio: this platform does not support fdatasync()"
 527                          " falling back to using fsync().  Use the 'fsync'"
 528                          " option instead of 'fdatasync' to get rid of"
 529                          " this warning\n");
 530                 o->fsync_blocks = o->fdatasync_blocks;
 531                 o->fdatasync_blocks = 0;
 532                 ret = warnings_fatal;
 533         }
 534 #endif
 535
 536         return ret;
 537 }
 538
 539 /*
 540  * This function leaks the buffer
 541  */
 542 static char *to_kmg(unsigned int val)
 543 {
 544         char *buf = malloc(32);
 545         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 546         char *p = post;
 547
 548         do {
 549                 if (val & 1023)
 550                         break;
 551
 552                 val >>= 10;
 553                 p++;
 554         } while (*p);
 555
 556         snprintf(buf, 31, "%u%c", val, *p);
 557         return buf;
 558 }
 559
 560 /* External engines are specified by "external:name.o") */
 561 static const char *get_engine_name(const char *str)
 562 {
 563         char *p = strstr(str, ":");
 564
 565         if (!p)
 566                 return str;
 567
 568         p++;
 569         strip_blank_front(&p);
 570         strip_blank_end(p);
 571         return p;
 572 }
 573
 574 static int exists_and_not_file(const char *filename)
 575 {
 576         struct stat sb;
 577
 578         if (lstat(filename, &sb) == -1)
 579                 return 0;
 580
 581         /* \\.\ is the device namespace in Windows, where every file
 582          * is a device node */
 583         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 584                 return 0;
 585
 586         return 1;
 587 }
 588
 589 static void td_fill_rand_seeds_os(struct thread_data *td)
 590 {
 591         os_random_seed(td->rand_seeds[0], &td->bsrange_state);
 592         os_random_seed(td->rand_seeds[1], &td->verify_state);
 593         os_random_seed(td->rand_seeds[2], &td->rwmix_state);
 594
 595         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 596                 os_random_seed(td->rand_seeds[3], &td->next_file_state);
 597
 598         os_random_seed(td->rand_seeds[5], &td->file_size_state);
 599         os_random_seed(td->rand_seeds[6], &td->trim_state);
 600
 601         if (!td_random(td))
 602                 return;
 603
 604         if (td->o.rand_repeatable)
 605                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 606
 607         os_random_seed(td->rand_seeds[4], &td->random_state);
 608 }
 609
 610 static void td_fill_rand_seeds_internal(struct thread_data *td)
 611 {
 612         init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
 613         init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
 614         init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
 615
 616         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 617                 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
 618
 619         init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
 620         init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
 621
 622         if (!td_random(td))
 623                 return;
 624
 625         if (td->o.rand_repeatable)
 626                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 627
 628         init_rand_seed(&td->__random_state, td->rand_seeds[4]);
 629 }
 630
 631 void td_fill_rand_seeds(struct thread_data *td)
 632 {
 633         if (td->o.use_os_rand)
 634                 td_fill_rand_seeds_os(td);
 635         else
 636                 td_fill_rand_seeds_internal(td);
 637
 638         init_rand_seed(&td->buf_state, td->rand_seeds[7]);
 639 }
 640
 641 /*
 642  * Initialize the various random states we need (random io, block size ranges,
 643  * read/write mix, etc).
 644  */
 645 static int init_random_state(struct thread_data *td)
 646 {
 647         int fd;
 648
 649         fd = open("/dev/urandom", O_RDONLY);
 650         if (fd == -1) {
 651                 td_verror(td, errno, "open");
 652                 return 1;
 653         }
 654
 655         if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
 656             (int) sizeof(td->rand_seeds)) {
 657                 td_verror(td, EIO, "read");
 658                 close(fd);
 659                 return 1;
 660         }
 661
 662         close(fd);
 663         td_fill_rand_seeds(td);
 664         return 0;
 665 }
 666
 667 /*
 668  * Adds a job to the list of things todo. Sanitizes the various options
 669  * to make sure we don't have conflicts, and initializes various
 670  * members of td.
 671  */
 672 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 673 {
 674         const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
 675                                    "randread", "randwrite", "randrw" };
 676         unsigned int i;
 677         const char *engine;
 678         char fname[PATH_MAX];
 679         int numjobs, file_alloced;
 680
 681         /*
 682          * the def_thread is just for options, it's not a real job
 683          */
 684         if (td == &def_thread)
 685                 return 0;
 686
 687         /*
 688          * if we are just dumping the output command line, don't add the job
 689          */
 690         if (dump_cmdline) {
 691                 put_job(td);
 692                 return 0;
 693         }
 694
 695         if (profile_td_init(td))
 696                 goto err;
 697
 698         engine = get_engine_name(td->o.ioengine);
 699         td->io_ops = load_ioengine(td, engine);
 700         if (!td->io_ops) {
 701                 log_err("fio: failed to load engine %s\n", engine);
 702                 goto err;
 703         }
 704
 705         if (td->o.use_thread)
 706                 nr_thread++;
 707         else
 708                 nr_process++;
 709
 710         if (td->o.odirect)
 711                 td->io_ops->flags |= FIO_RAWIO;
 712
 713         file_alloced = 0;
 714         if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
 715                 file_alloced = 1;
 716
 717                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 718                         add_file(td, jobname);
 719                 else {
 720                         for (i = 0; i < td->o.nr_files; i++) {
 721                                 sprintf(fname, "%s.%d.%d", jobname,
 722                                                         td->thread_number, i);
 723                                 add_file(td, fname);
 724                         }
 725                 }
 726         }
 727
 728         if (fixup_options(td))
 729                 goto err;
 730
 731         if (td->io_ops->flags & FIO_DISKLESSIO) {
 732                 struct fio_file *f;
 733
 734                 for_each_file(td, f, i)
 735                         f->real_file_size = -1ULL;
 736         }
 737
 738         td->mutex = fio_mutex_init(0);
 739
 740         td->ts.clat_percentiles = td->o.clat_percentiles;
 741         if (td->o.overwrite_plist)
 742                 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
 743         else
 744                 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
 745
 746         td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
 747         td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
 748         td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
 749         td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 750         td->ddir_seq_nr = td->o.ddir_seq_nr;
 751
 752         if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
 753                 prev_group_jobs = 0;
 754                 groupid++;
 755         }
 756
 757         td->groupid = groupid;
 758         prev_group_jobs++;
 759
 760         if (init_random_state(td))
 761                 goto err;
 762
 763         if (setup_rate(td))
 764                 goto err;
 765
 766         if (td->o.write_lat_log) {
 767                 setup_log(&td->lat_log);
 768                 setup_log(&td->slat_log);
 769                 setup_log(&td->clat_log);
 770         }
 771         if (td->o.write_bw_log)
 772                 setup_log(&td->bw_log);
 773         if (td->o.write_iops_log)
 774                 setup_log(&td->iops_log);
 775
 776         if (!td->o.name)
 777                 td->o.name = strdup(jobname);
 778
 779         if (!terse_output) {
 780                 if (!job_add_num) {
 781                         if (!strcmp(td->io_ops->name, "cpuio")) {
 782                                 log_info("%s: ioengine=cpu, cpuload=%u,"
 783                                          " cpucycle=%u\n", td->o.name,
 784                                                         td->o.cpuload,
 785                                                         td->o.cpucycle);
 786                         } else {
 787                                 char *c1, *c2, *c3, *c4;
 788
 789                                 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
 790                                 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
 791                                 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
 792                                 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 793
 794                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
 795                                          " ioengine=%s, iodepth=%u\n",
 796                                                 td->o.name, td->groupid,
 797                                                 ddir_str[td->o.td_ddir],
 798                                                 c1, c2, c3, c4,
 799                                                 td->io_ops->name,
 800                                                 td->o.iodepth);
 801
 802                                 free(c1);
 803                                 free(c2);
 804                                 free(c3);
 805                                 free(c4);
 806                         }
 807                 } else if (job_add_num == 1)
 808                         log_info("...\n");
 809         }
 810
 811         /*
 812          * recurse add identical jobs, clear numjobs and stonewall options
 813          * as they don't apply to sub-jobs
 814          */
 815         numjobs = td->o.numjobs;
 816         while (--numjobs) {
 817                 struct thread_data *td_new = get_new_job(0, td);
 818
 819                 if (!td_new)
 820                         goto err;
 821
 822                 td_new->o.numjobs = 1;
 823                 td_new->o.stonewall = 0;
 824                 td_new->o.new_group = 0;
 825
 826                 if (file_alloced) {
 827                         td_new->o.filename = NULL;
 828                         td_new->files_index = 0;
 829                         td_new->files_size = 0;
 830                         td_new->files = NULL;
 831                 }
 832
 833                 job_add_num = numjobs - 1;
 834
 835                 if (add_job(td_new, jobname, job_add_num))
 836                         goto err;
 837         }
 838
 839         return 0;
 840 err:
 841         put_job(td);
 842         return -1;
 843 }
 844
 845 /*
 846  * Parse as if 'o' was a command line
 847  */
 848 void add_job_opts(const char **o)
 849 {
 850         struct thread_data *td, *td_parent;
 851         int i, in_global = 1;
 852         char jobname[32];
 853
 854         i = 0;
 855         td_parent = td = NULL;
 856         while (o[i]) {
 857                 if (!strncmp(o[i], "name", 4)) {
 858                         in_global = 0;
 859                         if (td)
 860                                 add_job(td, jobname, 0);
 861                         td = NULL;
 862                         sprintf(jobname, "%s", o[i] + 5);
 863                 }
 864                 if (in_global && !td_parent)
 865                         td_parent = get_new_job(1, &def_thread);
 866                 else if (!in_global && !td) {
 867                         if (!td_parent)
 868                                 td_parent = &def_thread;
 869                         td = get_new_job(0, td_parent);
 870                 }
 871                 if (in_global)
 872                         fio_options_parse(td_parent, (char **) &o[i], 1);
 873                 else
 874                         fio_options_parse(td, (char **) &o[i], 1);
 875                 i++;
 876         }
 877
 878         if (td)
 879                 add_job(td, jobname, 0);
 880 }
 881
 882 static int skip_this_section(const char *name)
 883 {
 884         int i;
 885
 886         if (!nr_job_sections)
 887                 return 0;
 888         if (!strncmp(name, "global", 6))
 889                 return 0;
 890
 891         for (i = 0; i < nr_job_sections; i++)
 892                 if (!strcmp(job_sections[i], name))
 893                         return 0;
 894
 895         return 1;
 896 }
 897
 898 static int is_empty_or_comment(char *line)
 899 {
 900         unsigned int i;
 901
 902         for (i = 0; i < strlen(line); i++) {
 903                 if (line[i] == ';')
 904                         return 1;
 905                 if (line[i] == '#')
 906                         return 1;
 907                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
 908                         return 0;
 909         }
 910
 911         return 1;
 912 }
 913
 914 /*
 915  * This is our [ini] type file parser.
 916  */
 917 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
 918 {
 919         unsigned int global;
 920         struct thread_data *td;
 921         char *string, *name;
 922         FILE *f;
 923         char *p;
 924         int ret = 0, stonewall;
 925         int first_sect = 1;
 926         int skip_fgets = 0;
 927         int inside_skip = 0;
 928         char **opts;
 929         int i, alloc_opts, num_opts;
 930
 931         if (is_buf)
 932                 f = NULL;
 933         else {
 934                 if (!strcmp(file, "-"))
 935                         f = stdin;
 936                 else
 937                         f = fopen(file, "r");
 938
 939                 if (!f) {
 940                         perror("fopen job file");
 941                         return 1;
 942                 }
 943         }
 944
 945         string = malloc(4096);
 946
 947         /*
 948          * it's really 256 + small bit, 280 should suffice
 949          */
 950         name = malloc(280);
 951         memset(name, 0, 280);
 952
 953         alloc_opts = 8;
 954         opts = malloc(sizeof(char *) * alloc_opts);
 955         num_opts = 0;
 956
 957         stonewall = stonewall_flag;
 958         do {
 959                 /*
 960                  * if skip_fgets is set, we already have loaded a line we
 961                  * haven't handled.
 962                  */
 963                 if (!skip_fgets) {
 964                         if (is_buf)
 965                                 p = strsep(&file, "\n");
 966                         else
 967                                 p = fgets(string, 4096, f);
 968                         if (!p)
 969                                 break;
 970                 }
 971
 972                 skip_fgets = 0;
 973                 strip_blank_front(&p);
 974                 strip_blank_end(p);
 975
 976                 if (is_empty_or_comment(p))
 977                         continue;
 978                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
 979                         if (inside_skip)
 980                                 continue;
 981                         log_err("fio: option <%s> outside of [] job section\n",
 982                                                                         p);
 983                         break;
 984                 }
 985
 986                 name[strlen(name) - 1] = '\0';
 987
 988                 if (skip_this_section(name)) {
 989                         inside_skip = 1;
 990                         continue;
 991                 } else
 992                         inside_skip = 0;
 993
 994                 global = !strncmp(name, "global", 6);
 995
 996                 if (dump_cmdline) {
 997                         if (first_sect)
 998                                 log_info("fio ");
 999                         if (!global)
1000                                 log_info("--name=%s ", name);
1001                         first_sect = 0;
1002                 }
1003
1004                 td = get_new_job(global, &def_thread);
1005                 if (!td) {
1006                         ret = 1;
1007                         break;
1008                 }
1009
1010                 /*
1011                  * Seperate multiple job files by a stonewall
1012                  */
1013                 if (!global && stonewall) {
1014                         td->o.stonewall = stonewall;
1015                         stonewall = 0;
1016                 }
1017
1018                 num_opts = 0;
1019                 memset(opts, 0, alloc_opts * sizeof(char *));
1020
1021                 while (1) {
1022                         if (is_buf)
1023                                 p = strsep(&file, "\n");
1024                         else
1025                                 p = fgets(string, 4096, f);
1026                         if (!p)
1027                                 break;
1028
1029                         if (is_empty_or_comment(p))
1030                                 continue;
1031
1032                         strip_blank_front(&p);
1033
1034                         /*
1035                          * new section, break out and make sure we don't
1036                          * fgets() a new line at the top.
1037                          */
1038                         if (p[0] == '[') {
1039                                 skip_fgets = 1;
1040                                 break;
1041                         }
1042
1043                         strip_blank_end(p);
1044
1045                         if (num_opts == alloc_opts) {
1046                                 alloc_opts <<= 1;
1047                                 opts = realloc(opts,
1048                                                 alloc_opts * sizeof(char *));
1049                         }
1050
1051                         opts[num_opts] = strdup(p);
1052                         num_opts++;
1053                 }
1054
1055                 ret = fio_options_parse(td, opts, num_opts);
1056                 if (!ret) {
1057                         if (dump_cmdline)
1058                                 for (i = 0; i < num_opts; i++)
1059                                         log_info("--%s ", opts[i]);
1060
1061                         ret = add_job(td, name, 0);
1062                 } else {
1063                         log_err("fio: job %s dropped\n", name);
1064                         put_job(td);
1065                 }
1066
1067                 for (i = 0; i < num_opts; i++)
1068                         free(opts[i]);
1069                 num_opts = 0;
1070         } while (!ret);
1071
1072         if (dump_cmdline)
1073                 log_info("\n");
1074
1075         i = 0;
1076         while (i < nr_job_sections) {
1077                 free(job_sections[i]);
1078                 i++;
1079         }
1080
1081         for (i = 0; i < num_opts; i++)
1082                 free(opts[i]);
1083
1084         free(string);
1085         free(name);
1086         free(opts);
1087         if (!is_buf && f != stdin)
1088                 fclose(f);
1089         return ret;
1090 }
1091
1092 static int fill_def_thread(void)
1093 {
1094         memset(&def_thread, 0, sizeof(def_thread));
1095
1096         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1097         def_thread.o.timeout = def_timeout;
1098
1099         /*
1100          * fill default options
1101          */
1102         fio_fill_default_options(&def_thread);
1103         return 0;
1104 }
1105
1106 static void usage(const char *name)
1107 {
1108         printf("fio %s\n", fio_version_string);
1109         printf("%s [options] [job options] <job file(s)>\n", name);
1110         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1111                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1112                 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1113         printf("  --output\t\tWrite output to file\n");
1114         printf("  --timeout\t\tRuntime in seconds\n");
1115         printf("  --latency-log\t\tGenerate per-job latency logs\n");
1116         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1117         printf("  --minimal\t\tMinimal (terse) output\n");
1118         printf("  --version\t\tPrint version info and exit\n");
1119         printf("  --terse-version=x\tTerse version output format to 'x'\n");
1120         printf("  --help\t\tPrint this page\n");
1121         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1122                 " them\n");
1123         printf("  --showcmd\t\tTurn a job file into command line options\n");
1124         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1125         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1126         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1127                 " writes\n");
1128         printf("  --section=name\tOnly run specified section in job file\n");
1129         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1130                 " (def 1024)\n");
1131         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1132         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1133         printf("  --server=args\t\tStart a backend fio server\n");
1134         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1135         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1136         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1137         printf("\n                 Jens Axboe <jaxboe@fusionio.com>\n");
1138 }
1139
1140 #ifdef FIO_INC_DEBUG
1141 struct debug_level debug_levels[] = {
1142         { .name = "process",    .shift = FD_PROCESS, },
1143         { .name = "file",       .shift = FD_FILE, },
1144         { .name = "io",         .shift = FD_IO, },
1145         { .name = "mem",        .shift = FD_MEM, },
1146         { .name = "blktrace",   .shift = FD_BLKTRACE },
1147         { .name = "verify",     .shift = FD_VERIFY },
1148         { .name = "random",     .shift = FD_RANDOM },
1149         { .name = "parse",      .shift = FD_PARSE },
1150         { .name = "diskutil",   .shift = FD_DISKUTIL },
1151         { .name = "job",        .shift = FD_JOB },
1152         { .name = "mutex",      .shift = FD_MUTEX },
1153         { .name = "profile",    .shift = FD_PROFILE },
1154         { .name = "time",       .shift = FD_TIME },
1155         { .name = "net",        .shift = FD_NET },
1156         { .name = NULL, },
1157 };
1158
1159 static int set_debug(const char *string)
1160 {
1161         struct debug_level *dl;
1162         char *p = (char *) string;
1163         char *opt;
1164         int i;
1165
1166         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1167                 log_info("fio: dumping debug options:");
1168                 for (i = 0; debug_levels[i].name; i++) {
1169                         dl = &debug_levels[i];
1170                         log_info("%s,", dl->name);
1171                 }
1172                 log_info("all\n");
1173                 return 1;
1174         }
1175
1176         while ((opt = strsep(&p, ",")) != NULL) {
1177                 int found = 0;
1178
1179                 if (!strncmp(opt, "all", 3)) {
1180                         log_info("fio: set all debug options\n");
1181                         fio_debug = ~0UL;
1182                         continue;
1183                 }
1184
1185                 for (i = 0; debug_levels[i].name; i++) {
1186                         dl = &debug_levels[i];
1187                         found = !strncmp(opt, dl->name, strlen(dl->name));
1188                         if (!found)
1189                                 continue;
1190
1191                         if (dl->shift == FD_JOB) {
1192                                 opt = strchr(opt, ':');
1193                                 if (!opt) {
1194                                         log_err("fio: missing job number\n");
1195                                         break;
1196                                 }
1197                                 opt++;
1198                                 fio_debug_jobno = atoi(opt);
1199                                 log_info("fio: set debug jobno %d\n",
1200                                                         fio_debug_jobno);
1201                         } else {
1202                                 log_info("fio: set debug option %s\n", opt);
1203                                 fio_debug |= (1UL << dl->shift);
1204                         }
1205                         break;
1206                 }
1207
1208                 if (!found)
1209                         log_err("fio: debug mask %s not found\n", opt);
1210         }
1211         return 0;
1212 }
1213 #else
1214 static int set_debug(const char *string)
1215 {
1216         log_err("fio: debug tracing not included in build\n");
1217         return 1;
1218 }
1219 #endif
1220
1221 static void fio_options_fill_optstring(void)
1222 {
1223         char *ostr = cmd_optstr;
1224         int i, c;
1225
1226         c = i = 0;
1227         while (l_opts[i].name) {
1228                 ostr[c++] = l_opts[i].val;
1229                 if (l_opts[i].has_arg == required_argument)
1230                         ostr[c++] = ':';
1231                 else if (l_opts[i].has_arg == optional_argument) {
1232                         ostr[c++] = ':';
1233                         ostr[c++] = ':';
1234                 }
1235                 i++;
1236         }
1237         ostr[c] = '\0';
1238 }
1239
1240 static int client_flag_set(char c)
1241 {
1242         int i;
1243
1244         i = 0;
1245         while (l_opts[i].name) {
1246                 int val = l_opts[i].val;
1247
1248                 if (c == (val & 0xff))
1249                         return (val & FIO_CLIENT_FLAG);
1250
1251                 i++;
1252         }
1253
1254         return 0;
1255 }
1256
1257 void parse_cmd_client(void *client, char *opt)
1258 {
1259         fio_client_add_cmd_option(client, opt);
1260 }
1261
1262 int parse_cmd_line(int argc, char *argv[])
1263 {
1264         struct thread_data *td = NULL;
1265         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1266         char *ostr = cmd_optstr;
1267         void *pid_file = NULL;
1268         void *cur_client = NULL;
1269         int backend = 0;
1270
1271         /*
1272          * Reset optind handling, since we may call this multiple times
1273          * for the backend.
1274          */
1275         optind = 1;
1276
1277         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1278                 did_arg = 1;
1279
1280                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1281                         parse_cmd_client(cur_client, argv[optind - 1]);
1282                         c &= ~FIO_CLIENT_FLAG;
1283                 }
1284
1285                 switch (c) {
1286                 case 'a':
1287                         smalloc_pool_size = atoi(optarg);
1288                         break;
1289                 case 't':
1290                         def_timeout = atoi(optarg);
1291                         break;
1292                 case 'l':
1293                         write_lat_log = 1;
1294                         break;
1295                 case 'b':
1296                         write_bw_log = 1;
1297                         break;
1298                 case 'o':
1299                         f_out = fopen(optarg, "w+");
1300                         if (!f_out) {
1301                                 perror("fopen output");
1302                                 exit(1);
1303                         }
1304                         f_err = f_out;
1305                         break;
1306                 case 'm':
1307                         terse_output = 1;
1308                         break;
1309                 case 'h':
1310                         if (!cur_client) {
1311                                 usage(argv[0]);
1312                                 do_exit++;
1313                         }
1314                         break;
1315                 case 'c':
1316                         if (!cur_client) {
1317                                 fio_show_option_help(optarg);
1318                                 do_exit++;
1319                         }
1320                         break;
1321                 case 's':
1322                         dump_cmdline = 1;
1323                         break;
1324                 case 'r':
1325                         read_only = 1;
1326                         break;
1327                 case 'v':
1328                         if (!cur_client) {
1329                                 log_info("fio %s\n", fio_version_string);
1330                                 do_exit++;
1331                         }
1332                         break;
1333                 case 'V':
1334                         terse_version = atoi(optarg);
1335                         if (!(terse_version == 2 || terse_version == 3)) {
1336                                 log_err("fio: bad terse version format\n");
1337                                 exit_val = 1;
1338                                 do_exit++;
1339                         }
1340                         break;
1341                 case 'e':
1342                         if (!strcmp("always", optarg))
1343                                 eta_print = FIO_ETA_ALWAYS;
1344                         else if (!strcmp("never", optarg))
1345                                 eta_print = FIO_ETA_NEVER;
1346                         break;
1347                 case 'd':
1348                         if (set_debug(optarg))
1349                                 do_exit++;
1350                         break;
1351                 case 'x': {
1352                         size_t new_size;
1353
1354                         if (!strcmp(optarg, "global")) {
1355                                 log_err("fio: can't use global as only "
1356                                         "section\n");
1357                                 do_exit++;
1358                                 exit_val = 1;
1359                                 break;
1360                         }
1361                         new_size = (nr_job_sections + 1) * sizeof(char *);
1362                         job_sections = realloc(job_sections, new_size);
1363                         job_sections[nr_job_sections] = strdup(optarg);
1364                         nr_job_sections++;
1365                         break;
1366                         }
1367                 case 'p':
1368                         exec_profile = strdup(optarg);
1369                         break;
1370                 case FIO_GETOPT_JOB: {
1371                         const char *opt = l_opts[lidx].name;
1372                         char *val = optarg;
1373
1374                         if (!strncmp(opt, "name", 4) && td) {
1375                                 ret = add_job(td, td->o.name ?: "fio", 0);
1376                                 if (ret)
1377                                         return 0;
1378                                 td = NULL;
1379                         }
1380                         if (!td) {
1381                                 int is_section = !strncmp(opt, "name", 4);
1382                                 int global = 0;
1383
1384                                 if (!is_section || !strncmp(val, "global", 6))
1385                                         global = 1;
1386
1387                                 if (is_section && skip_this_section(val))
1388                                         continue;
1389
1390                                 td = get_new_job(global, &def_thread);
1391                                 if (!td)
1392                                         return 0;
1393                         }
1394
1395                         ret = fio_cmd_option_parse(td, opt, val);
1396                         break;
1397                 }
1398                 case 'w':
1399                         warnings_fatal = 1;
1400                         break;
1401                 case 'j':
1402                         max_jobs = atoi(optarg);
1403                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1404                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
1405                                 do_exit++;
1406                                 exit_val = 1;
1407                         }
1408                         break;
1409                 case 'S':
1410                         if (nr_clients) {
1411                                 log_err("fio: can't be both client and server\n");
1412                                 do_exit++;
1413                                 exit_val = 1;
1414                                 break;
1415                         }
1416                         if (optarg)
1417                                 fio_server_set_arg(optarg);
1418                         is_backend = 1;
1419                         backend = 1;
1420                         break;
1421                 case 'D':
1422                         pid_file = strdup(optarg);
1423                         break;
1424                 case 'C':
1425                         if (is_backend) {
1426                                 log_err("fio: can't be both client and server\n");
1427                                 do_exit++;
1428                                 exit_val = 1;
1429                                 break;
1430                         }
1431                         if (fio_client_add(optarg, &cur_client)) {
1432                                 log_err("fio: failed adding client %s\n", optarg);
1433                                 do_exit++;
1434                                 exit_val = 1;
1435                                 break;
1436                         }
1437                         break;
1438                 default:
1439                         do_exit++;
1440                         exit_val = 1;
1441                         break;
1442                 }
1443                 if (do_exit)
1444                         break;
1445         }
1446
1447         if (do_exit) {
1448                 if (exit_val && !(is_backend || nr_clients))
1449                         exit(exit_val);
1450         }
1451
1452         if (nr_clients && fio_clients_connect()) {
1453                 do_exit++;
1454                 exit_val = 1;
1455                 return -1;
1456         }
1457
1458         if (is_backend && backend)
1459                 return fio_start_server(pid_file);
1460
1461         if (td) {
1462                 if (!ret)
1463                         ret = add_job(td, td->o.name ?: "fio", 0);
1464         }
1465
1466         while (!ret && optind < argc) {
1467                 ini_idx++;
1468                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1469                 ini_file[ini_idx - 1] = strdup(argv[optind]);
1470                 optind++;
1471         }
1472
1473         return ini_idx;
1474 }
1475
1476 int parse_options(int argc, char *argv[])
1477 {
1478         int job_files, i;
1479
1480         f_out = stdout;
1481         f_err = stderr;
1482
1483         fio_options_fill_optstring();
1484         fio_options_dup_and_init(l_opts);
1485
1486         atexit(free_shm);
1487
1488         if (fill_def_thread())
1489                 return 1;
1490
1491         job_files = parse_cmd_line(argc, argv);
1492
1493         if (job_files > 0) {
1494                 for (i = 0; i < job_files; i++) {
1495                         if (fill_def_thread())
1496                                 return 1;
1497                         if (nr_clients) {
1498                                 if (fio_clients_send_ini(ini_file[i]))
1499                                         return 1;
1500                                 free(ini_file[i]);
1501                         } else if (!is_backend) {
1502                                 if (parse_jobs_ini(ini_file[i], 0, i))
1503                                         return 1;
1504                                 free(ini_file[i]);
1505                         }
1506                 }
1507         }
1508
1509         free(ini_file);
1510         fio_options_free(&def_thread);
1511
1512         if (!thread_number) {
1513                 if (dump_cmdline)
1514                         return 0;
1515                 if (exec_profile)
1516                         return 0;
1517                 if (is_backend || nr_clients)
1518                         return 0;
1519                 if (did_arg)
1520                         return 0;
1521
1522                 log_err("No jobs(s) defined\n\n");
1523
1524                 if (!did_arg) {
1525                         usage(argv[0]);
1526                         return 1;
1527                 }
1528
1529                 return 0;
1530         }
1531
1532         if (def_thread.o.gtod_offload) {
1533                 fio_gtod_init();
1534                 fio_gtod_offload = 1;
1535                 fio_gtod_cpu = def_thread.o.gtod_cpu;
1536         }
1537
1538         if (!terse_output)
1539                 log_info("fio %s\n", fio_version_string);
1540
1541         return 0;
1542 }