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/types.h>
  13 #include <sys/stat.h>
  14
  15 #include "fio.h"
  16 #ifndef FIO_NO_HAVE_SHM_H
  17 #include <sys/shm.h>
  18 #endif
  19
  20 #include "parse.h"
  21 #include "smalloc.h"
  22 #include "filehash.h"
  23 #include "verify.h"
  24 #include "profile.h"
  25 #include "server.h"
  26 #include "idletime.h"
  27 #include "filelock.h"
  28
  29 #include "lib/getopt.h"
  30 #include "lib/strcasestr.h"
  31
  32 #include "crc/test.h"
  33
  34 const char fio_version_string[] = FIO_VERSION;
  35
  36 #define FIO_RANDSEED            (0xb1899bedUL)
  37
  38 static char **ini_file;
  39 static int max_jobs = FIO_MAX_JOBS;
  40 static int dump_cmdline;
  41 static long long def_timeout;
  42 static int parse_only;
  43
  44 static struct thread_data def_thread;
  45 struct thread_data *threads = NULL;
  46 static char **job_sections;
  47 static int nr_job_sections;
  48
  49 int exitall_on_terminate = 0;
  50 int output_format = FIO_OUTPUT_NORMAL;
  51 int append_terse_output = 0;
  52 int eta_print = FIO_ETA_AUTO;
  53 int eta_new_line = 0;
  54 FILE *f_out = NULL;
  55 FILE *f_err = NULL;
  56 char *exec_profile = NULL;
  57 int warnings_fatal = 0;
  58 int terse_version = 3;
  59 int is_backend = 0;
  60 int nr_clients = 0;
  61 int log_syslog = 0;
  62
  63 int write_bw_log = 0;
  64 int read_only = 0;
  65 int status_interval = 0;
  66
  67 static int write_lat_log;
  68
  69 static int prev_group_jobs;
  70
  71 unsigned long fio_debug = 0;
  72 unsigned int fio_debug_jobno = -1;
  73 unsigned int *fio_debug_jobp = NULL;
  74
  75 static char cmd_optstr[256];
  76 static int did_arg;
  77
  78 #define FIO_CLIENT_FLAG         (1 << 16)
  79
  80 /*
  81  * Command line options. These will contain the above, plus a few
  82  * extra that only pertain to fio itself and not jobs.
  83  */
  84 static struct option l_opts[FIO_NR_OPTIONS] = {
  85         {
  86                 .name           = (char *) "output",
  87                 .has_arg        = required_argument,
  88                 .val            = 'o' | FIO_CLIENT_FLAG,
  89         },
  90         {
  91                 .name           = (char *) "timeout",
  92                 .has_arg        = required_argument,
  93                 .val            = 't' | FIO_CLIENT_FLAG,
  94         },
  95         {
  96                 .name           = (char *) "latency-log",
  97                 .has_arg        = required_argument,
  98                 .val            = 'l' | FIO_CLIENT_FLAG,
  99         },
 100         {
 101                 .name           = (char *) "bandwidth-log",
 102                 .has_arg        = required_argument,
 103                 .val            = 'b' | FIO_CLIENT_FLAG,
 104         },
 105         {
 106                 .name           = (char *) "minimal",
 107                 .has_arg        = no_argument,
 108                 .val            = 'm' | FIO_CLIENT_FLAG,
 109         },
 110         {
 111                 .name           = (char *) "output-format",
 112                 .has_arg        = optional_argument,
 113                 .val            = 'F' | FIO_CLIENT_FLAG,
 114         },
 115         {
 116                 .name           = (char *) "append-terse",
 117                 .has_arg        = optional_argument,
 118                 .val            = 'f',
 119         },
 120         {
 121                 .name           = (char *) "version",
 122                 .has_arg        = no_argument,
 123                 .val            = 'v' | FIO_CLIENT_FLAG,
 124         },
 125         {
 126                 .name           = (char *) "help",
 127                 .has_arg        = no_argument,
 128                 .val            = 'h' | FIO_CLIENT_FLAG,
 129         },
 130         {
 131                 .name           = (char *) "cmdhelp",
 132                 .has_arg        = optional_argument,
 133                 .val            = 'c' | FIO_CLIENT_FLAG,
 134         },
 135         {
 136                 .name           = (char *) "enghelp",
 137                 .has_arg        = optional_argument,
 138                 .val            = 'i' | FIO_CLIENT_FLAG,
 139         },
 140         {
 141                 .name           = (char *) "showcmd",
 142                 .has_arg        = no_argument,
 143                 .val            = 's' | FIO_CLIENT_FLAG,
 144         },
 145         {
 146                 .name           = (char *) "readonly",
 147                 .has_arg        = no_argument,
 148                 .val            = 'r' | FIO_CLIENT_FLAG,
 149         },
 150         {
 151                 .name           = (char *) "eta",
 152                 .has_arg        = required_argument,
 153                 .val            = 'e' | FIO_CLIENT_FLAG,
 154         },
 155         {
 156                 .name           = (char *) "eta-newline",
 157                 .has_arg        = required_argument,
 158                 .val            = 'E' | FIO_CLIENT_FLAG,
 159         },
 160         {
 161                 .name           = (char *) "debug",
 162                 .has_arg        = required_argument,
 163                 .val            = 'd' | FIO_CLIENT_FLAG,
 164         },
 165         {
 166                 .name           = (char *) "parse-only",
 167                 .has_arg        = no_argument,
 168                 .val            = 'P' | FIO_CLIENT_FLAG,
 169         },
 170         {
 171                 .name           = (char *) "section",
 172                 .has_arg        = required_argument,
 173                 .val            = 'x' | FIO_CLIENT_FLAG,
 174         },
 175         {
 176                 .name           = (char *) "alloc-size",
 177                 .has_arg        = required_argument,
 178                 .val            = 'a' | FIO_CLIENT_FLAG,
 179         },
 180         {
 181                 .name           = (char *) "profile",
 182                 .has_arg        = required_argument,
 183                 .val            = 'p' | FIO_CLIENT_FLAG,
 184         },
 185         {
 186                 .name           = (char *) "warnings-fatal",
 187                 .has_arg        = no_argument,
 188                 .val            = 'w' | FIO_CLIENT_FLAG,
 189         },
 190         {
 191                 .name           = (char *) "max-jobs",
 192                 .has_arg        = required_argument,
 193                 .val            = 'j' | FIO_CLIENT_FLAG,
 194         },
 195         {
 196                 .name           = (char *) "terse-version",
 197                 .has_arg        = required_argument,
 198                 .val            = 'V' | FIO_CLIENT_FLAG,
 199         },
 200         {
 201                 .name           = (char *) "server",
 202                 .has_arg        = optional_argument,
 203                 .val            = 'S',
 204         },
 205         {       .name           = (char *) "daemonize",
 206                 .has_arg        = required_argument,
 207                 .val            = 'D',
 208         },
 209         {
 210                 .name           = (char *) "client",
 211                 .has_arg        = required_argument,
 212                 .val            = 'C',
 213         },
 214         {
 215                 .name           = (char *) "cpuclock-test",
 216                 .has_arg        = no_argument,
 217                 .val            = 'T',
 218         },
 219         {
 220                 .name           = (char *) "crctest",
 221                 .has_arg        = optional_argument,
 222                 .val            = 'G',
 223         },
 224         {
 225                 .name           = (char *) "idle-prof",
 226                 .has_arg        = required_argument,
 227                 .val            = 'I',
 228         },
 229         {
 230                 .name           = (char *) "status-interval",
 231                 .has_arg        = required_argument,
 232                 .val            = 'L',
 233         },
 234         {
 235                 .name           = NULL,
 236         },
 237 };
 238
 239 void free_threads_shm(void)
 240 {
 241         struct shmid_ds sbuf;
 242
 243         if (threads) {
 244                 void *tp = threads;
 245
 246                 threads = NULL;
 247                 shmdt(tp);
 248                 shmctl(shm_id, IPC_RMID, &sbuf);
 249                 shm_id = -1;
 250         }
 251 }
 252
 253 static void free_shm(void)
 254 {
 255         if (threads) {
 256                 file_hash_exit();
 257                 flow_exit();
 258                 fio_debug_jobp = NULL;
 259                 free_threads_shm();
 260         }
 261
 262         options_free(fio_options, &def_thread);
 263         fio_filelock_exit();
 264         scleanup();
 265 }
 266
 267 /*
 268  * The thread area is shared between the main process and the job
 269  * threads/processes. So setup a shared memory segment that will hold
 270  * all the job info. We use the end of the region for keeping track of
 271  * open files across jobs, for file sharing.
 272  */
 273 static int setup_thread_area(void)
 274 {
 275         void *hash;
 276
 277         if (threads)
 278                 return 0;
 279
 280         /*
 281          * 1024 is too much on some machines, scale max_jobs if
 282          * we get a failure that looks like too large a shm segment
 283          */
 284         do {
 285                 size_t size = max_jobs * sizeof(struct thread_data);
 286
 287                 size += file_hash_size;
 288                 size += sizeof(unsigned int);
 289
 290                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 291                 if (shm_id != -1)
 292                         break;
 293                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 294                         perror("shmget");
 295                         break;
 296                 }
 297
 298                 max_jobs >>= 1;
 299         } while (max_jobs);
 300
 301         if (shm_id == -1)
 302                 return 1;
 303
 304         threads = shmat(shm_id, NULL, 0);
 305         if (threads == (void *) -1) {
 306                 perror("shmat");
 307                 return 1;
 308         }
 309
 310         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 311         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 312         fio_debug_jobp = (void *) hash + file_hash_size;
 313         *fio_debug_jobp = -1;
 314         file_hash_init(hash);
 315
 316         flow_init();
 317
 318         return 0;
 319 }
 320
 321 static void set_cmd_options(struct thread_data *td)
 322 {
 323         struct thread_options *o = &td->o;
 324
 325         if (!o->timeout)
 326                 o->timeout = def_timeout;
 327 }
 328
 329 /*
 330  * Return a free job structure.
 331  */
 332 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 333                                        int preserve_eo)
 334 {
 335         struct thread_data *td;
 336
 337         if (global) {
 338                 set_cmd_options(&def_thread);
 339                 return &def_thread;
 340         }
 341         if (setup_thread_area()) {
 342                 log_err("error: failed to setup shm segment\n");
 343                 return NULL;
 344         }
 345         if (thread_number >= max_jobs) {
 346                 log_err("error: maximum number of jobs (%d) reached.\n",
 347                                 max_jobs);
 348                 return NULL;
 349         }
 350
 351         td = &threads[thread_number++];
 352         *td = *parent;
 353
 354         td->io_ops = NULL;
 355         if (!preserve_eo)
 356                 td->eo = NULL;
 357
 358         td->o.uid = td->o.gid = -1U;
 359
 360         dup_files(td, parent);
 361         fio_options_mem_dupe(td);
 362
 363         profile_add_hooks(td);
 364
 365         td->thread_number = thread_number;
 366
 367         if (!parent->o.group_reporting)
 368                 stat_number++;
 369
 370         set_cmd_options(td);
 371         return td;
 372 }
 373
 374 static void put_job(struct thread_data *td)
 375 {
 376         if (td == &def_thread)
 377                 return;
 378
 379         profile_td_exit(td);
 380         flow_exit_job(td);
 381
 382         if (td->error)
 383                 log_info("fio: %s\n", td->verror);
 384
 385         fio_options_free(td);
 386         if (td->io_ops)
 387                 free_ioengine(td);
 388
 389         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 390         thread_number--;
 391 }
 392
 393 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 394 {
 395         unsigned int bs = td->o.min_bs[ddir];
 396
 397         assert(ddir_rw(ddir));
 398
 399         if (td->o.rate[ddir])
 400                 td->rate_bps[ddir] = td->o.rate[ddir];
 401         else
 402                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 403
 404         if (!td->rate_bps[ddir]) {
 405                 log_err("rate lower than supported\n");
 406                 return -1;
 407         }
 408
 409         td->rate_pending_usleep[ddir] = 0;
 410         return 0;
 411 }
 412
 413 static int setup_rate(struct thread_data *td)
 414 {
 415         int ret = 0;
 416
 417         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 418                 ret = __setup_rate(td, DDIR_READ);
 419         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 420                 ret |= __setup_rate(td, DDIR_WRITE);
 421         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 422                 ret |= __setup_rate(td, DDIR_TRIM);
 423
 424         return ret;
 425 }
 426
 427 static int fixed_block_size(struct thread_options *o)
 428 {
 429         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 430                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 431                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 432                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 433                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 434 }
 435
 436
 437 static unsigned long long get_rand_start_delay(struct thread_data *td)
 438 {
 439         unsigned long long delayrange;
 440         unsigned long r;
 441
 442         delayrange = td->o.start_delay_high - td->o.start_delay;
 443
 444         if (td->o.use_os_rand) {
 445                 r = os_random_long(&td->delay_state);
 446                 delayrange = (unsigned long long) ((double) delayrange * (r / (OS_RAND_MAX + 1.0)));
 447         } else {
 448                 r = __rand(&td->__delay_state);
 449                 delayrange = (unsigned long long) ((double) delayrange * (r / (FRAND_MAX + 1.0)));
 450         }
 451
 452         delayrange += td->o.start_delay;
 453         return delayrange;
 454 }
 455
 456 /*
 457  * Lazy way of fixing up options that depend on each other. We could also
 458  * define option callback handlers, but this is easier.
 459  */
 460 static int fixup_options(struct thread_data *td)
 461 {
 462         struct thread_options *o = &td->o;
 463         int ret = 0;
 464
 465 #ifndef FIO_HAVE_PSHARED_MUTEX
 466         if (!o->use_thread) {
 467                 log_info("fio: this platform does not support process shared"
 468                          " mutexes, forcing use of threads. Use the 'thread'"
 469                          " option to get rid of this warning.\n");
 470                 o->use_thread = 1;
 471                 ret = warnings_fatal;
 472         }
 473 #endif
 474
 475         if (o->write_iolog_file && o->read_iolog_file) {
 476                 log_err("fio: read iolog overrides write_iolog\n");
 477                 free(o->write_iolog_file);
 478                 o->write_iolog_file = NULL;
 479                 ret = warnings_fatal;
 480         }
 481
 482         /*
 483          * only really works with 1 file
 484          */
 485         if (o->zone_size && o->open_files > 1)
 486                 o->zone_size = 0;
 487
 488         /*
 489          * If zone_range isn't specified, backward compatibility dictates it
 490          * should be made equal to zone_size.
 491          */
 492         if (o->zone_size && !o->zone_range)
 493                 o->zone_range = o->zone_size;
 494
 495         /*
 496          * Reads can do overwrites, we always need to pre-create the file
 497          */
 498         if (td_read(td) || td_rw(td))
 499                 o->overwrite = 1;
 500
 501         if (!o->min_bs[DDIR_READ])
 502                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 503         if (!o->max_bs[DDIR_READ])
 504                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 505         if (!o->min_bs[DDIR_WRITE])
 506                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 507         if (!o->max_bs[DDIR_WRITE])
 508                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 509         if (!o->min_bs[DDIR_TRIM])
 510                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 511         if (!o->max_bs[DDIR_TRIM])
 512                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 513
 514
 515         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 516         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 517
 518         /*
 519          * For random IO, allow blockalign offset other than min_bs.
 520          */
 521         if (!o->ba[DDIR_READ] || !td_random(td))
 522                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 523         if (!o->ba[DDIR_WRITE] || !td_random(td))
 524                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 525         if (!o->ba[DDIR_TRIM] || !td_random(td))
 526                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 527
 528         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 529             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 530             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 531             !o->norandommap) {
 532                 log_err("fio: Any use of blockalign= turns off randommap\n");
 533                 o->norandommap = 1;
 534                 ret = warnings_fatal;
 535         }
 536
 537         if (!o->file_size_high)
 538                 o->file_size_high = o->file_size_low;
 539
 540         if (o->start_delay_high)
 541                 o->start_delay = get_rand_start_delay(td);
 542
 543         if (o->norandommap && o->verify != VERIFY_NONE
 544             && !fixed_block_size(o))  {
 545                 log_err("fio: norandommap given for variable block sizes, "
 546                         "verify disabled\n");
 547                 o->verify = VERIFY_NONE;
 548                 ret = warnings_fatal;
 549         }
 550         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 551                 log_err("fio: bs_unaligned may not work with raw io\n");
 552
 553         /*
 554          * thinktime_spin must be less than thinktime
 555          */
 556         if (o->thinktime_spin > o->thinktime)
 557                 o->thinktime_spin = o->thinktime;
 558
 559         /*
 560          * The low water mark cannot be bigger than the iodepth
 561          */
 562         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 563                 o->iodepth_low = o->iodepth;
 564
 565         /*
 566          * If batch number isn't set, default to the same as iodepth
 567          */
 568         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 569                 o->iodepth_batch = o->iodepth;
 570
 571         if (o->nr_files > td->files_index)
 572                 o->nr_files = td->files_index;
 573
 574         if (o->open_files > o->nr_files || !o->open_files)
 575                 o->open_files = o->nr_files;
 576
 577         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 578             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 579             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 580             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 581                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 582                 ret = 1;
 583         }
 584         if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
 585             (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
 586             (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
 587             (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
 588             (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
 589             (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
 590                 log_err("fio: minimum rate exceeds rate\n");
 591                 ret = 1;
 592         }
 593
 594         if (!o->timeout && o->time_based) {
 595                 log_err("fio: time_based requires a runtime/timeout setting\n");
 596                 o->time_based = 0;
 597                 ret = warnings_fatal;
 598         }
 599
 600         if (o->fill_device && !o->size)
 601                 o->size = -1ULL;
 602
 603         if (o->verify != VERIFY_NONE) {
 604                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 605                         log_info("Multiple writers may overwrite blocks that "
 606                                 "belong to other jobs. This can cause "
 607                                 "verification failures.\n");
 608                         ret = warnings_fatal;
 609                 }
 610
 611                 o->refill_buffers = 1;
 612                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 613                     !o->verify_interval)
 614                         o->verify_interval = o->min_bs[DDIR_WRITE];
 615         }
 616
 617         if (o->pre_read) {
 618                 o->invalidate_cache = 0;
 619                 if (td->io_ops->flags & FIO_PIPEIO) {
 620                         log_info("fio: cannot pre-read files with an IO engine"
 621                                  " that isn't seekable. Pre-read disabled.\n");
 622                         ret = warnings_fatal;
 623                 }
 624         }
 625
 626         if (!o->unit_base) {
 627                 if (td->io_ops->flags & FIO_BIT_BASED)
 628                         o->unit_base = 1;
 629                 else
 630                         o->unit_base = 8;
 631         }
 632
 633 #ifndef CONFIG_FDATASYNC
 634         if (o->fdatasync_blocks) {
 635                 log_info("fio: this platform does not support fdatasync()"
 636                          " falling back to using fsync().  Use the 'fsync'"
 637                          " option instead of 'fdatasync' to get rid of"
 638                          " this warning\n");
 639                 o->fsync_blocks = o->fdatasync_blocks;
 640                 o->fdatasync_blocks = 0;
 641                 ret = warnings_fatal;
 642         }
 643 #endif
 644
 645 #ifdef WIN32
 646         /*
 647          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 648          * so fail if we're passed those flags
 649          */
 650         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 651                 log_err("fio: Windows does not support direct or non-buffered io with"
 652                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 653                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 654                 ret = 1;
 655         }
 656 #endif
 657
 658         /*
 659          * For fully compressible data, just zero them at init time.
 660          * It's faster than repeatedly filling it.
 661          */
 662         if (td->o.compress_percentage == 100) {
 663                 td->o.zero_buffers = 1;
 664                 td->o.compress_percentage = 0;
 665         }
 666
 667         /*
 668          * Using a non-uniform random distribution excludes usage of
 669          * a random map
 670          */
 671         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 672                 td->o.norandommap = 1;
 673
 674         /*
 675          * If size is set but less than the min block size, complain
 676          */
 677         if (o->size && o->size < td_min_bs(td)) {
 678                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 679                 ret = 1;
 680         }
 681
 682         /*
 683          * O_ATOMIC implies O_DIRECT
 684          */
 685         if (td->o.oatomic)
 686                 td->o.odirect = 1;
 687
 688         /*
 689          * If randseed is set, that overrides randrepeat
 690          */
 691         if (td->o.rand_seed)
 692                 td->o.rand_repeatable = 0;
 693
 694         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 695                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 696                 ret = 1;
 697         }
 698
 699         return ret;
 700 }
 701
 702 /*
 703  * This function leaks the buffer
 704  */
 705 char *fio_uint_to_kmg(unsigned int val)
 706 {
 707         char *buf = malloc(32);
 708         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 709         char *p = post;
 710
 711         do {
 712                 if (val & 1023)
 713                         break;
 714
 715                 val >>= 10;
 716                 p++;
 717         } while (*p);
 718
 719         snprintf(buf, 32, "%u%c", val, *p);
 720         return buf;
 721 }
 722
 723 /* External engines are specified by "external:name.o") */
 724 static const char *get_engine_name(const char *str)
 725 {
 726         char *p = strstr(str, ":");
 727
 728         if (!p)
 729                 return str;
 730
 731         p++;
 732         strip_blank_front(&p);
 733         strip_blank_end(p);
 734         return p;
 735 }
 736
 737 static int exists_and_not_file(const char *filename)
 738 {
 739         struct stat sb;
 740
 741         if (lstat(filename, &sb) == -1)
 742                 return 0;
 743
 744         /* \\.\ is the device namespace in Windows, where every file
 745          * is a device node */
 746         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 747                 return 0;
 748
 749         return 1;
 750 }
 751
 752 static void td_fill_rand_seeds_os(struct thread_data *td)
 753 {
 754         os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state);
 755         os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state);
 756         os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state);
 757
 758         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 759                 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state);
 760
 761         os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state);
 762         os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state);
 763         os_random_seed(td->rand_seeds[FIO_RAND_START_DELAY], &td->delay_state);
 764
 765         if (!td_random(td))
 766                 return;
 767
 768         if (td->o.rand_repeatable)
 769                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 770
 771         os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state);
 772
 773         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], &td->seq_rand_state[DDIR_READ]);
 774         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF], &td->seq_rand_state[DDIR_WRITE]);
 775         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF], &td->seq_rand_state[DDIR_TRIM]);
 776 }
 777
 778 static void td_fill_rand_seeds_internal(struct thread_data *td)
 779 {
 780         init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
 781         init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
 782         init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 783
 784         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 785                 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 786
 787         init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
 788         init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 789         init_rand_seed(&td->__delay_state, td->rand_seeds[FIO_RAND_START_DELAY]);
 790
 791         if (!td_random(td))
 792                 return;
 793
 794         if (td->o.rand_repeatable)
 795                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 796
 797         init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 798         init_rand_seed(&td->__seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF]);
 799         init_rand_seed(&td->__seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF]);
 800         init_rand_seed(&td->__seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF]);
 801 }
 802
 803 void td_fill_rand_seeds(struct thread_data *td)
 804 {
 805         if (td->o.allrand_repeatable) {
 806                 for (int i = 0; i < FIO_RAND_NR_OFFS; i++)
 807                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 808                                 + i;
 809         }
 810
 811         if (td->o.use_os_rand)
 812                 td_fill_rand_seeds_os(td);
 813         else
 814                 td_fill_rand_seeds_internal(td);
 815
 816         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 817 }
 818
 819 /*
 820  * Initializes the ioengine configured for a job, if it has not been done so
 821  * already.
 822  */
 823 int ioengine_load(struct thread_data *td)
 824 {
 825         const char *engine;
 826
 827         /*
 828          * Engine has already been loaded.
 829          */
 830         if (td->io_ops)
 831                 return 0;
 832         if (!td->o.ioengine) {
 833                 log_err("fio: internal fault, no IO engine specified\n");
 834                 return 1;
 835         }
 836
 837         engine = get_engine_name(td->o.ioengine);
 838         td->io_ops = load_ioengine(td, engine);
 839         if (!td->io_ops) {
 840                 log_err("fio: failed to load engine %s\n", engine);
 841                 return 1;
 842         }
 843
 844         if (td->io_ops->option_struct_size && td->io_ops->options) {
 845                 /*
 846                  * In cases where td->eo is set, clone it for a child thread.
 847                  * This requires that the parent thread has the same ioengine,
 848                  * but that requirement must be enforced by the code which
 849                  * cloned the thread.
 850                  */
 851                 void *origeo = td->eo;
 852                 /*
 853                  * Otherwise use the default thread options.
 854                  */
 855                 if (!origeo && td != &def_thread && def_thread.eo &&
 856                     def_thread.io_ops->options == td->io_ops->options)
 857                         origeo = def_thread.eo;
 858
 859                 options_init(td->io_ops->options);
 860                 td->eo = malloc(td->io_ops->option_struct_size);
 861                 /*
 862                  * Use the default thread as an option template if this uses the
 863                  * same options structure and there are non-default options
 864                  * used.
 865                  */
 866                 if (origeo) {
 867                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 868                         options_mem_dupe(td->eo, td->io_ops->options);
 869                 } else {
 870                         memset(td->eo, 0, td->io_ops->option_struct_size);
 871                         fill_default_options(td->eo, td->io_ops->options);
 872                 }
 873                 *(struct thread_data **)td->eo = td;
 874         }
 875
 876         return 0;
 877 }
 878
 879 static void init_flags(struct thread_data *td)
 880 {
 881         struct thread_options *o = &td->o;
 882
 883         if (o->verify_backlog)
 884                 td->flags |= TD_F_VER_BACKLOG;
 885         if (o->trim_backlog)
 886                 td->flags |= TD_F_TRIM_BACKLOG;
 887         if (o->read_iolog_file)
 888                 td->flags |= TD_F_READ_IOLOG;
 889         if (o->refill_buffers)
 890                 td->flags |= TD_F_REFILL_BUFFERS;
 891         if (o->scramble_buffers)
 892                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 893         if (o->verify != VERIFY_NONE)
 894                 td->flags |= TD_F_VER_NONE;
 895 }
 896
 897 static int setup_random_seeds(struct thread_data *td)
 898 {
 899         unsigned long seed;
 900         unsigned int i;
 901
 902         if (!td->o.rand_repeatable && !td->o.rand_seed)
 903                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 904
 905         if (!td->o.rand_seed)
 906                 seed = 0x89;
 907         else
 908                 seed = td->o.rand_seed;
 909
 910         for (i = 0; i < 4; i++)
 911                 seed *= 0x9e370001UL;
 912
 913         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
 914                 td->rand_seeds[i] = seed;
 915                 seed *= 0x9e370001UL;
 916         }
 917
 918         td_fill_rand_seeds(td);
 919         return 0;
 920 }
 921
 922 enum {
 923         FPRE_NONE = 0,
 924         FPRE_JOBNAME,
 925         FPRE_JOBNUM,
 926         FPRE_FILENUM
 927 };
 928
 929 static struct fpre_keyword {
 930         const char *keyword;
 931         size_t strlen;
 932         int key;
 933 } fpre_keywords[] = {
 934         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
 935         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
 936         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
 937         { .keyword = NULL, },
 938         };
 939
 940 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 941                            const char *jobname, int jobnum, int filenum)
 942 {
 943         struct fpre_keyword *f;
 944         char copy[PATH_MAX];
 945         size_t dst_left = PATH_MAX - 1;
 946
 947         if (!o->filename_format || !strlen(o->filename_format)) {
 948                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
 949                 return NULL;
 950         }
 951
 952         for (f = &fpre_keywords[0]; f->keyword; f++)
 953                 f->strlen = strlen(f->keyword);
 954
 955         buf[buf_size - 1] = '\0';
 956         strncpy(buf, o->filename_format, buf_size - 1);
 957
 958         memset(copy, 0, sizeof(copy));
 959         for (f = &fpre_keywords[0]; f->keyword; f++) {
 960                 do {
 961                         size_t pre_len, post_start = 0;
 962                         char *str, *dst = copy;
 963
 964                         str = strcasestr(buf, f->keyword);
 965                         if (!str)
 966                                 break;
 967
 968                         pre_len = str - buf;
 969                         if (strlen(str) != f->strlen)
 970                                 post_start = pre_len + f->strlen;
 971
 972                         if (pre_len) {
 973                                 strncpy(dst, buf, pre_len);
 974                                 dst += pre_len;
 975                                 dst_left -= pre_len;
 976                         }
 977
 978                         switch (f->key) {
 979                         case FPRE_JOBNAME: {
 980                                 int ret;
 981
 982                                 ret = snprintf(dst, dst_left, "%s", jobname);
 983                                 if (ret < 0)
 984                                         break;
 985                                 dst += ret;
 986                                 dst_left -= ret;
 987                                 break;
 988                                 }
 989                         case FPRE_JOBNUM: {
 990                                 int ret;
 991
 992                                 ret = snprintf(dst, dst_left, "%d", jobnum);
 993                                 if (ret < 0)
 994                                         break;
 995                                 dst += ret;
 996                                 dst_left -= ret;
 997                                 break;
 998                                 }
 999                         case FPRE_FILENUM: {
1000                                 int ret;
1001
1002                                 ret = snprintf(dst, dst_left, "%d", filenum);
1003                                 if (ret < 0)
1004                                         break;
1005                                 dst += ret;
1006                                 dst_left -= ret;
1007                                 break;
1008                                 }
1009                         default:
1010                                 assert(0);
1011                                 break;
1012                         }
1013
1014                         if (post_start)
1015                                 strncpy(dst, buf + post_start, dst_left);
1016
1017                         strncpy(buf, copy, buf_size - 1);
1018                 } while (1);
1019         }
1020
1021         return buf;
1022 }
1023
1024 int parse_dryrun(void)
1025 {
1026         return dump_cmdline || parse_only;
1027 }
1028
1029 /*
1030  * Adds a job to the list of things todo. Sanitizes the various options
1031  * to make sure we don't have conflicts, and initializes various
1032  * members of td.
1033  */
1034 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1035                    int recursed, int client_type)
1036 {
1037         unsigned int i;
1038         char fname[PATH_MAX];
1039         int numjobs, file_alloced;
1040         struct thread_options *o = &td->o;
1041
1042         /*
1043          * the def_thread is just for options, it's not a real job
1044          */
1045         if (td == &def_thread)
1046                 return 0;
1047
1048         init_flags(td);
1049
1050         /*
1051          * if we are just dumping the output command line, don't add the job
1052          */
1053         if (parse_dryrun()) {
1054                 put_job(td);
1055                 return 0;
1056         }
1057
1058         td->client_type = client_type;
1059
1060         if (profile_td_init(td))
1061                 goto err;
1062
1063         if (ioengine_load(td))
1064                 goto err;
1065
1066         if (o->odirect)
1067                 td->io_ops->flags |= FIO_RAWIO;
1068
1069         file_alloced = 0;
1070         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1071                 file_alloced = 1;
1072
1073                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1074                         add_file(td, jobname, job_add_num, 0);
1075                 else {
1076                         for (i = 0; i < o->nr_files; i++)
1077                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1078                 }
1079         }
1080
1081         if (fixup_options(td))
1082                 goto err;
1083
1084         flow_init_job(td);
1085
1086         /*
1087          * IO engines only need this for option callbacks, and the address may
1088          * change in subprocesses.
1089          */
1090         if (td->eo)
1091                 *(struct thread_data **)td->eo = NULL;
1092
1093         if (td->io_ops->flags & FIO_DISKLESSIO) {
1094                 struct fio_file *f;
1095
1096                 for_each_file(td, f, i)
1097                         f->real_file_size = -1ULL;
1098         }
1099
1100         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1101
1102         td->ts.clat_percentiles = o->clat_percentiles;
1103         td->ts.percentile_precision = o->percentile_precision;
1104         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1105
1106         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1107                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1108                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1109                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1110                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1111         }
1112         td->ddir_seq_nr = o->ddir_seq_nr;
1113
1114         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1115                 prev_group_jobs = 0;
1116                 groupid++;
1117         }
1118
1119         td->groupid = groupid;
1120         prev_group_jobs++;
1121
1122         if (setup_random_seeds(td)) {
1123                 td_verror(td, errno, "init_random_state");
1124                 goto err;
1125         }
1126
1127         if (setup_rate(td))
1128                 goto err;
1129
1130         if (o->lat_log_file || write_lat_log) {
1131                 setup_log(&td->lat_log, o->log_avg_msec, IO_LOG_TYPE_LAT);
1132                 setup_log(&td->slat_log, o->log_avg_msec, IO_LOG_TYPE_SLAT);
1133                 setup_log(&td->clat_log, o->log_avg_msec, IO_LOG_TYPE_CLAT);
1134         }
1135         if (o->bw_log_file || write_bw_log)
1136                 setup_log(&td->bw_log, o->log_avg_msec, IO_LOG_TYPE_BW);
1137         if (o->iops_log_file)
1138                 setup_log(&td->iops_log, o->log_avg_msec, IO_LOG_TYPE_IOPS);
1139
1140         if (!o->name)
1141                 o->name = strdup(jobname);
1142
1143         if (output_format == FIO_OUTPUT_NORMAL) {
1144                 if (!job_add_num) {
1145                         if (is_backend && !recursed)
1146                                 fio_server_send_add_job(td);
1147
1148                         if (!(td->io_ops->flags & FIO_NOIO)) {
1149                                 char *c1, *c2, *c3, *c4;
1150                                 char *c5 = NULL, *c6 = NULL;
1151
1152                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1153                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1154                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1155                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1156
1157                                 if (!o->bs_is_seq_rand) {
1158                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1159                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1160                                 }
1161
1162                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1163                                                         td->groupid,
1164                                                         ddir_str(o->td_ddir));
1165
1166                                 if (o->bs_is_seq_rand)
1167                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1168                                                         c1, c2, c3, c4);
1169                                 else
1170                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1171                                                         c1, c2, c3, c4, c5, c6);
1172
1173                                 log_info("ioengine=%s, iodepth=%u\n",
1174                                                 td->io_ops->name, o->iodepth);
1175
1176                                 free(c1);
1177                                 free(c2);
1178                                 free(c3);
1179                                 free(c4);
1180                                 free(c5);
1181                                 free(c6);
1182                         }
1183                 } else if (job_add_num == 1)
1184                         log_info("...\n");
1185         }
1186
1187         /*
1188          * recurse add identical jobs, clear numjobs and stonewall options
1189          * as they don't apply to sub-jobs
1190          */
1191         numjobs = o->numjobs;
1192         while (--numjobs) {
1193                 struct thread_data *td_new = get_new_job(0, td, 1);
1194
1195                 if (!td_new)
1196                         goto err;
1197
1198                 td_new->o.numjobs = 1;
1199                 td_new->o.stonewall = 0;
1200                 td_new->o.new_group = 0;
1201
1202                 if (file_alloced) {
1203                         if (td_new->files) {
1204                                 struct fio_file *f;
1205                                 for_each_file(td_new, f, i) {
1206                                         if (f->file_name)
1207                                                 sfree(f->file_name);
1208                                         sfree(f);
1209                                 }
1210                                 free(td_new->files);
1211                                 td_new->files = NULL;
1212                         }
1213                         td_new->files_index = 0;
1214                         td_new->files_size = 0;
1215                         if (td_new->o.filename) {
1216                                 free(td_new->o.filename);
1217                                 td_new->o.filename = NULL;
1218                         }
1219                 }
1220
1221                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1222                         goto err;
1223         }
1224
1225         return 0;
1226 err:
1227         put_job(td);
1228         return -1;
1229 }
1230
1231 /*
1232  * Parse as if 'o' was a command line
1233  */
1234 void add_job_opts(const char **o, int client_type)
1235 {
1236         struct thread_data *td, *td_parent;
1237         int i, in_global = 1;
1238         char jobname[32];
1239
1240         i = 0;
1241         td_parent = td = NULL;
1242         while (o[i]) {
1243                 if (!strncmp(o[i], "name", 4)) {
1244                         in_global = 0;
1245                         if (td)
1246                                 add_job(td, jobname, 0, 0, client_type);
1247                         td = NULL;
1248                         sprintf(jobname, "%s", o[i] + 5);
1249                 }
1250                 if (in_global && !td_parent)
1251                         td_parent = get_new_job(1, &def_thread, 0);
1252                 else if (!in_global && !td) {
1253                         if (!td_parent)
1254                                 td_parent = &def_thread;
1255                         td = get_new_job(0, td_parent, 0);
1256                 }
1257                 if (in_global)
1258                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1259                 else
1260                         fio_options_parse(td, (char **) &o[i], 1, 0);
1261                 i++;
1262         }
1263
1264         if (td)
1265                 add_job(td, jobname, 0, 0, client_type);
1266 }
1267
1268 static int skip_this_section(const char *name)
1269 {
1270         int i;
1271
1272         if (!nr_job_sections)
1273                 return 0;
1274         if (!strncmp(name, "global", 6))
1275                 return 0;
1276
1277         for (i = 0; i < nr_job_sections; i++)
1278                 if (!strcmp(job_sections[i], name))
1279                         return 0;
1280
1281         return 1;
1282 }
1283
1284 static int is_empty_or_comment(char *line)
1285 {
1286         unsigned int i;
1287
1288         for (i = 0; i < strlen(line); i++) {
1289                 if (line[i] == ';')
1290                         return 1;
1291                 if (line[i] == '#')
1292                         return 1;
1293                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1294                         return 0;
1295         }
1296
1297         return 1;
1298 }
1299
1300 /*
1301  * This is our [ini] type file parser.
1302  */
1303 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1304 {
1305         unsigned int global;
1306         struct thread_data *td;
1307         char *string, *name;
1308         FILE *f;
1309         char *p;
1310         int ret = 0, stonewall;
1311         int first_sect = 1;
1312         int skip_fgets = 0;
1313         int inside_skip = 0;
1314         char **opts;
1315         int i, alloc_opts, num_opts;
1316
1317         if (is_buf)
1318                 f = NULL;
1319         else {
1320                 if (!strcmp(file, "-"))
1321                         f = stdin;
1322                 else
1323                         f = fopen(file, "r");
1324
1325                 if (!f) {
1326                         perror("fopen job file");
1327                         return 1;
1328                 }
1329         }
1330
1331         string = malloc(4096);
1332
1333         /*
1334          * it's really 256 + small bit, 280 should suffice
1335          */
1336         name = malloc(280);
1337         memset(name, 0, 280);
1338
1339         alloc_opts = 8;
1340         opts = malloc(sizeof(char *) * alloc_opts);
1341         num_opts = 0;
1342
1343         stonewall = stonewall_flag;
1344         do {
1345                 /*
1346                  * if skip_fgets is set, we already have loaded a line we
1347                  * haven't handled.
1348                  */
1349                 if (!skip_fgets) {
1350                         if (is_buf)
1351                                 p = strsep(&file, "\n");
1352                         else
1353                                 p = fgets(string, 4096, f);
1354                         if (!p)
1355                                 break;
1356                 }
1357
1358                 skip_fgets = 0;
1359                 strip_blank_front(&p);
1360                 strip_blank_end(p);
1361
1362                 if (is_empty_or_comment(p))
1363                         continue;
1364                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1365                         if (inside_skip)
1366                                 continue;
1367                         log_err("fio: option <%s> outside of [] job section\n",
1368                                                                         p);
1369                         break;
1370                 }
1371
1372                 name[strlen(name) - 1] = '\0';
1373
1374                 if (skip_this_section(name)) {
1375                         inside_skip = 1;
1376                         continue;
1377                 } else
1378                         inside_skip = 0;
1379
1380                 global = !strncmp(name, "global", 6);
1381
1382                 if (dump_cmdline) {
1383                         if (first_sect)
1384                                 log_info("fio ");
1385                         if (!global)
1386                                 log_info("--name=%s ", name);
1387                         first_sect = 0;
1388                 }
1389
1390                 td = get_new_job(global, &def_thread, 0);
1391                 if (!td) {
1392                         ret = 1;
1393                         break;
1394                 }
1395
1396                 /*
1397                  * Separate multiple job files by a stonewall
1398                  */
1399                 if (!global && stonewall) {
1400                         td->o.stonewall = stonewall;
1401                         stonewall = 0;
1402                 }
1403
1404                 num_opts = 0;
1405                 memset(opts, 0, alloc_opts * sizeof(char *));
1406
1407                 while (1) {
1408                         if (is_buf)
1409                                 p = strsep(&file, "\n");
1410                         else
1411                                 p = fgets(string, 4096, f);
1412                         if (!p)
1413                                 break;
1414
1415                         if (is_empty_or_comment(p))
1416                                 continue;
1417
1418                         strip_blank_front(&p);
1419
1420                         /*
1421                          * new section, break out and make sure we don't
1422                          * fgets() a new line at the top.
1423                          */
1424                         if (p[0] == '[') {
1425                                 skip_fgets = 1;
1426                                 break;
1427                         }
1428
1429                         strip_blank_end(p);
1430
1431                         if (num_opts == alloc_opts) {
1432                                 alloc_opts <<= 1;
1433                                 opts = realloc(opts,
1434                                                 alloc_opts * sizeof(char *));
1435                         }
1436
1437                         opts[num_opts] = strdup(p);
1438                         num_opts++;
1439                 }
1440
1441                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1442                 if (!ret)
1443                         ret = add_job(td, name, 0, 0, type);
1444                 else {
1445                         log_err("fio: job %s dropped\n", name);
1446                         put_job(td);
1447                 }
1448
1449                 for (i = 0; i < num_opts; i++)
1450                         free(opts[i]);
1451                 num_opts = 0;
1452         } while (!ret);
1453
1454         if (dump_cmdline)
1455                 log_info("\n");
1456
1457         i = 0;
1458         while (i < nr_job_sections) {
1459                 free(job_sections[i]);
1460                 i++;
1461         }
1462
1463         free(string);
1464         free(name);
1465         free(opts);
1466         if (!is_buf && f != stdin)
1467                 fclose(f);
1468         return ret;
1469 }
1470
1471 static int fill_def_thread(void)
1472 {
1473         memset(&def_thread, 0, sizeof(def_thread));
1474
1475         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1476         def_thread.o.error_dump = 1;
1477
1478         /*
1479          * fill default options
1480          */
1481         fio_fill_default_options(&def_thread);
1482         return 0;
1483 }
1484
1485 static void usage(const char *name)
1486 {
1487         printf("%s\n", fio_version_string);
1488         printf("%s [options] [job options] <job file(s)>\n", name);
1489         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1490                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1491                 "\t\t\tdiskutil,job,mutex,profile,time,net,rate\n");
1492         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1493         printf("  --output\t\tWrite output to file\n");
1494         printf("  --runtime\t\tRuntime in seconds\n");
1495         printf("  --latency-log\t\tGenerate per-job latency logs\n");
1496         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1497         printf("  --minimal\t\tMinimal (terse) output\n");
1498         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1499         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1500         printf("  --version\t\tPrint version info and exit\n");
1501         printf("  --help\t\tPrint this page\n");
1502         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1503         printf("  --crctest\t\tTest speed of checksum functions\n");
1504         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1505                 " them\n");
1506         printf("  --enghelp=engine\tPrint ioengine help, or list"
1507                 " available ioengines\n");
1508         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1509                 " cmd\n");
1510         printf("  --showcmd\t\tTurn a job file into command line options\n");
1511         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1512         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1513         printf("  --eta-newline=time\tForce a new line for every 'time'");
1514         printf(" period passed\n");
1515         printf("  --status-interval=t\tForce full status dump every");
1516         printf(" 't' period passed\n");
1517         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1518                 " writes\n");
1519         printf("  --section=name\tOnly run specified section in job file\n");
1520         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1521                 " (def 1024)\n");
1522         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1523         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1524         printf("  --server=args\t\tStart a backend fio server\n");
1525         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1526         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1527         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1528                 "\t\t\t(option=system,percpu) or run unit work\n"
1529                 "\t\t\tcalibration only (option=calibrate)\n");
1530         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1531         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1532         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1533 }
1534
1535 #ifdef FIO_INC_DEBUG
1536 struct debug_level debug_levels[] = {
1537         { .name = "process",
1538           .help = "Process creation/exit logging",
1539           .shift = FD_PROCESS,
1540         },
1541         { .name = "file",
1542           .help = "File related action logging",
1543           .shift = FD_FILE,
1544         },
1545         { .name = "io",
1546           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1547           .shift = FD_IO,
1548         },
1549         { .name = "mem",
1550           .help = "Memory allocation/freeing logging",
1551           .shift = FD_MEM,
1552         },
1553         { .name = "blktrace",
1554           .help = "blktrace action logging",
1555           .shift = FD_BLKTRACE,
1556         },
1557         { .name = "verify",
1558           .help = "IO verification action logging",
1559           .shift = FD_VERIFY,
1560         },
1561         { .name = "random",
1562           .help = "Random generation logging",
1563           .shift = FD_RANDOM,
1564         },
1565         { .name = "parse",
1566           .help = "Parser logging",
1567           .shift = FD_PARSE,
1568         },
1569         { .name = "diskutil",
1570           .help = "Disk utility logging actions",
1571           .shift = FD_DISKUTIL,
1572         },
1573         { .name = "job",
1574           .help = "Logging related to creating/destroying jobs",
1575           .shift = FD_JOB,
1576         },
1577         { .name = "mutex",
1578           .help = "Mutex logging",
1579           .shift = FD_MUTEX
1580         },
1581         { .name = "profile",
1582           .help = "Logging related to profiles",
1583           .shift = FD_PROFILE,
1584         },
1585         { .name = "time",
1586           .help = "Logging related to time keeping functions",
1587           .shift = FD_TIME,
1588         },
1589         { .name = "net",
1590           .help = "Network logging",
1591           .shift = FD_NET,
1592         },
1593         { .name = "rate",
1594           .help = "Rate logging",
1595           .shift = FD_RATE,
1596         },
1597         { .name = NULL, },
1598 };
1599
1600 static int set_debug(const char *string)
1601 {
1602         struct debug_level *dl;
1603         char *p = (char *) string;
1604         char *opt;
1605         int i;
1606
1607         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1608                 log_info("fio: dumping debug options:");
1609                 for (i = 0; debug_levels[i].name; i++) {
1610                         dl = &debug_levels[i];
1611                         log_info("%s,", dl->name);
1612                 }
1613                 log_info("all\n");
1614                 return 1;
1615         }
1616
1617         while ((opt = strsep(&p, ",")) != NULL) {
1618                 int found = 0;
1619
1620                 if (!strncmp(opt, "all", 3)) {
1621                         log_info("fio: set all debug options\n");
1622                         fio_debug = ~0UL;
1623                         continue;
1624                 }
1625
1626                 for (i = 0; debug_levels[i].name; i++) {
1627                         dl = &debug_levels[i];
1628                         found = !strncmp(opt, dl->name, strlen(dl->name));
1629                         if (!found)
1630                                 continue;
1631
1632                         if (dl->shift == FD_JOB) {
1633                                 opt = strchr(opt, ':');
1634                                 if (!opt) {
1635                                         log_err("fio: missing job number\n");
1636                                         break;
1637                                 }
1638                                 opt++;
1639                                 fio_debug_jobno = atoi(opt);
1640                                 log_info("fio: set debug jobno %d\n",
1641                                                         fio_debug_jobno);
1642                         } else {
1643                                 log_info("fio: set debug option %s\n", opt);
1644                                 fio_debug |= (1UL << dl->shift);
1645                         }
1646                         break;
1647                 }
1648
1649                 if (!found)
1650                         log_err("fio: debug mask %s not found\n", opt);
1651         }
1652         return 0;
1653 }
1654 #else
1655 static int set_debug(const char *string)
1656 {
1657         log_err("fio: debug tracing not included in build\n");
1658         return 1;
1659 }
1660 #endif
1661
1662 static void fio_options_fill_optstring(void)
1663 {
1664         char *ostr = cmd_optstr;
1665         int i, c;
1666
1667         c = i = 0;
1668         while (l_opts[i].name) {
1669                 ostr[c++] = l_opts[i].val;
1670                 if (l_opts[i].has_arg == required_argument)
1671                         ostr[c++] = ':';
1672                 else if (l_opts[i].has_arg == optional_argument) {
1673                         ostr[c++] = ':';
1674                         ostr[c++] = ':';
1675                 }
1676                 i++;
1677         }
1678         ostr[c] = '\0';
1679 }
1680
1681 static int client_flag_set(char c)
1682 {
1683         int i;
1684
1685         i = 0;
1686         while (l_opts[i].name) {
1687                 int val = l_opts[i].val;
1688
1689                 if (c == (val & 0xff))
1690                         return (val & FIO_CLIENT_FLAG);
1691
1692                 i++;
1693         }
1694
1695         return 0;
1696 }
1697
1698 static void parse_cmd_client(void *client, char *opt)
1699 {
1700         fio_client_add_cmd_option(client, opt);
1701 }
1702
1703 int parse_cmd_line(int argc, char *argv[], int client_type)
1704 {
1705         struct thread_data *td = NULL;
1706         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1707         char *ostr = cmd_optstr;
1708         void *pid_file = NULL;
1709         void *cur_client = NULL;
1710         int backend = 0;
1711
1712         /*
1713          * Reset optind handling, since we may call this multiple times
1714          * for the backend.
1715          */
1716         optind = 1;
1717
1718         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1719                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1720                         parse_cmd_client(cur_client, argv[optind - 1]);
1721                         c &= ~FIO_CLIENT_FLAG;
1722                 }
1723
1724                 switch (c) {
1725                 case 'a':
1726                         smalloc_pool_size = atoi(optarg);
1727                         break;
1728                 case 't':
1729                         if (check_str_time(optarg, &def_timeout, 1)) {
1730                                 log_err("fio: failed parsing time %s\n", optarg);
1731                                 do_exit++;
1732                                 exit_val = 1;
1733                         }
1734                         break;
1735                 case 'l':
1736                         write_lat_log = 1;
1737                         break;
1738                 case 'b':
1739                         write_bw_log = 1;
1740                         break;
1741                 case 'o':
1742                         if (f_out)
1743                                 fclose(f_out);
1744
1745                         f_out = fopen(optarg, "w+");
1746                         if (!f_out) {
1747                                 perror("fopen output");
1748                                 exit(1);
1749                         }
1750                         f_err = f_out;
1751                         break;
1752                 case 'm':
1753                         output_format = FIO_OUTPUT_TERSE;
1754                         break;
1755                 case 'F':
1756                         if (!optarg) {
1757                                 log_err("fio: missing --output-format argument\n");
1758                                 exit_val = 1;
1759                                 do_exit++;
1760                                 break;
1761                         }
1762                         if (!strcmp(optarg, "minimal") ||
1763                             !strcmp(optarg, "terse") ||
1764                             !strcmp(optarg, "csv"))
1765                                 output_format = FIO_OUTPUT_TERSE;
1766                         else if (!strcmp(optarg, "json"))
1767                                 output_format = FIO_OUTPUT_JSON;
1768                         else
1769                                 output_format = FIO_OUTPUT_NORMAL;
1770                         break;
1771                 case 'f':
1772                         append_terse_output = 1;
1773                         break;
1774                 case 'h':
1775                         did_arg = 1;
1776                         if (!cur_client) {
1777                                 usage(argv[0]);
1778                                 do_exit++;
1779                         }
1780                         break;
1781                 case 'c':
1782                         did_arg = 1;
1783                         if (!cur_client) {
1784                                 fio_show_option_help(optarg);
1785                                 do_exit++;
1786                         }
1787                         break;
1788                 case 'i':
1789                         did_arg = 1;
1790                         if (!cur_client) {
1791                                 fio_show_ioengine_help(optarg);
1792                                 do_exit++;
1793                         }
1794                         break;
1795                 case 's':
1796                         did_arg = 1;
1797                         dump_cmdline = 1;
1798                         break;
1799                 case 'r':
1800                         read_only = 1;
1801                         break;
1802                 case 'v':
1803                         did_arg = 1;
1804                         if (!cur_client) {
1805                                 log_info("%s\n", fio_version_string);
1806                                 do_exit++;
1807                         }
1808                         break;
1809                 case 'V':
1810                         terse_version = atoi(optarg);
1811                         if (!(terse_version == 2 || terse_version == 3 ||
1812                              terse_version == 4)) {
1813                                 log_err("fio: bad terse version format\n");
1814                                 exit_val = 1;
1815                                 do_exit++;
1816                         }
1817                         break;
1818                 case 'e':
1819                         if (!strcmp("always", optarg))
1820                                 eta_print = FIO_ETA_ALWAYS;
1821                         else if (!strcmp("never", optarg))
1822                                 eta_print = FIO_ETA_NEVER;
1823                         break;
1824                 case 'E': {
1825                         long long t = 0;
1826
1827                         if (str_to_decimal(optarg, &t, 0, NULL, 1)) {
1828                                 log_err("fio: failed parsing eta time %s\n", optarg);
1829                                 exit_val = 1;
1830                                 do_exit++;
1831                         }
1832                         eta_new_line = t;
1833                         break;
1834                         }
1835                 case 'd':
1836                         if (set_debug(optarg))
1837                                 do_exit++;
1838                         break;
1839                 case 'P':
1840                         did_arg = 1;
1841                         parse_only = 1;
1842                         break;
1843                 case 'x': {
1844                         size_t new_size;
1845
1846                         if (!strcmp(optarg, "global")) {
1847                                 log_err("fio: can't use global as only "
1848                                         "section\n");
1849                                 do_exit++;
1850                                 exit_val = 1;
1851                                 break;
1852                         }
1853                         new_size = (nr_job_sections + 1) * sizeof(char *);
1854                         job_sections = realloc(job_sections, new_size);
1855                         job_sections[nr_job_sections] = strdup(optarg);
1856                         nr_job_sections++;
1857                         break;
1858                         }
1859                 case 'p':
1860                         did_arg = 1;
1861                         if (exec_profile)
1862                                 free(exec_profile);
1863                         exec_profile = strdup(optarg);
1864                         break;
1865                 case FIO_GETOPT_JOB: {
1866                         const char *opt = l_opts[lidx].name;
1867                         char *val = optarg;
1868
1869                         if (!strncmp(opt, "name", 4) && td) {
1870                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1871                                 if (ret)
1872                                         goto out_free;
1873                                 td = NULL;
1874                                 did_arg = 1;
1875                         }
1876                         if (!td) {
1877                                 int is_section = !strncmp(opt, "name", 4);
1878                                 int global = 0;
1879
1880                                 if (!is_section || !strncmp(val, "global", 6))
1881                                         global = 1;
1882
1883                                 if (is_section && skip_this_section(val))
1884                                         continue;
1885
1886                                 td = get_new_job(global, &def_thread, 1);
1887                                 if (!td || ioengine_load(td))
1888                                         goto out_free;
1889                                 fio_options_set_ioengine_opts(l_opts, td);
1890                         }
1891
1892                         if ((!val || !strlen(val)) &&
1893                             l_opts[lidx].has_arg == required_argument) {
1894                                 log_err("fio: option %s requires an argument\n", opt);
1895                                 ret = 1;
1896                         } else
1897                                 ret = fio_cmd_option_parse(td, opt, val);
1898
1899                         if (ret) {
1900                                 if (td) {
1901                                         put_job(td);
1902                                         td = NULL;
1903                                 }
1904                                 do_exit++;
1905                         }
1906
1907                         if (!ret && !strcmp(opt, "ioengine")) {
1908                                 free_ioengine(td);
1909                                 if (ioengine_load(td))
1910                                         goto out_free;
1911                                 fio_options_set_ioengine_opts(l_opts, td);
1912                         }
1913                         break;
1914                 }
1915                 case FIO_GETOPT_IOENGINE: {
1916                         const char *opt = l_opts[lidx].name;
1917                         char *val = optarg;
1918
1919                         if (!td)
1920                                 break;
1921
1922                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
1923                         break;
1924                 }
1925                 case 'w':
1926                         warnings_fatal = 1;
1927                         break;
1928                 case 'j':
1929                         max_jobs = atoi(optarg);
1930                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1931                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
1932                                 do_exit++;
1933                                 exit_val = 1;
1934                         }
1935                         break;
1936                 case 'S':
1937                         did_arg = 1;
1938                         if (nr_clients) {
1939                                 log_err("fio: can't be both client and server\n");
1940                                 do_exit++;
1941                                 exit_val = 1;
1942                                 break;
1943                         }
1944                         if (optarg)
1945                                 fio_server_set_arg(optarg);
1946                         is_backend = 1;
1947                         backend = 1;
1948                         break;
1949                 case 'D':
1950                         if (pid_file)
1951                                 free(pid_file);
1952                         pid_file = strdup(optarg);
1953                         break;
1954                 case 'I':
1955                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
1956                                 /* exit on error and calibration only */
1957                                 did_arg = 1;
1958                                 do_exit++;
1959                                 if (ret == -1)
1960                                         exit_val = 1;
1961                         }
1962                         break;
1963                 case 'C':
1964                         did_arg = 1;
1965                         if (is_backend) {
1966                                 log_err("fio: can't be both client and server\n");
1967                                 do_exit++;
1968                                 exit_val = 1;
1969                                 break;
1970                         }
1971                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
1972                                 log_err("fio: failed adding client %s\n", optarg);
1973                                 do_exit++;
1974                                 exit_val = 1;
1975                                 break;
1976                         }
1977                         /*
1978                          * If the next argument exists and isn't an option,
1979                          * assume it's a job file for this client only.
1980                          */
1981                         while (optind < argc) {
1982                                 if (!strncmp(argv[optind], "--", 2) ||
1983                                     !strncmp(argv[optind], "-", 1))
1984                                         break;
1985
1986                                 fio_client_add_ini_file(cur_client, argv[optind]);
1987                                 optind++;
1988                         }
1989                         break;
1990                 case 'T':
1991                         did_arg = 1;
1992                         do_exit++;
1993                         exit_val = fio_monotonic_clocktest();
1994                         break;
1995                 case 'G':
1996                         did_arg = 1;
1997                         do_exit++;
1998                         exit_val = fio_crctest(optarg);
1999                         break;
2000                 case 'L': {
2001                         long long val;
2002
2003                         if (check_str_time(optarg, &val, 0)) {
2004                                 log_err("fio: failed parsing time %s\n", optarg);
2005                                 do_exit++;
2006                                 exit_val = 1;
2007                                 break;
2008                         }
2009                         status_interval = val * 1000;
2010                         break;
2011                         }
2012                 case '?':
2013                         log_err("%s: unrecognized option '%s'\n", argv[0],
2014                                                         argv[optind - 1]);
2015                 default:
2016                         do_exit++;
2017                         exit_val = 1;
2018                         break;
2019                 }
2020                 if (do_exit)
2021                         break;
2022         }
2023
2024         if (do_exit && !(is_backend || nr_clients))
2025                 exit(exit_val);
2026
2027         if (nr_clients && fio_clients_connect())
2028                 exit(1);
2029
2030         if (is_backend && backend)
2031                 return fio_start_server(pid_file);
2032         else if (pid_file)
2033                 free(pid_file);
2034
2035         if (td) {
2036                 if (!ret) {
2037                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2038                         if (ret)
2039                                 did_arg = 1;
2040                 }
2041         }
2042
2043         while (!ret && optind < argc) {
2044                 ini_idx++;
2045                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2046                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2047                 optind++;
2048         }
2049
2050 out_free:
2051         if (pid_file)
2052                 free(pid_file);
2053
2054         return ini_idx;
2055 }
2056
2057 int fio_init_options(void)
2058 {
2059         f_out = stdout;
2060         f_err = stderr;
2061
2062         fio_options_fill_optstring();
2063         fio_options_dup_and_init(l_opts);
2064
2065         atexit(free_shm);
2066
2067         if (fill_def_thread())
2068                 return 1;
2069
2070         return 0;
2071 }
2072
2073 extern int fio_check_options(struct thread_options *);
2074
2075 int parse_options(int argc, char *argv[])
2076 {
2077         const int type = FIO_CLIENT_TYPE_CLI;
2078         int job_files, i;
2079
2080         if (fio_init_options())
2081                 return 1;
2082         if (fio_test_cconv(&def_thread.o))
2083                 log_err("fio: failed internal cconv test\n");
2084
2085         job_files = parse_cmd_line(argc, argv, type);
2086
2087         if (job_files > 0) {
2088                 for (i = 0; i < job_files; i++) {
2089                         if (i && fill_def_thread())
2090                                 return 1;
2091                         if (nr_clients) {
2092                                 if (fio_clients_send_ini(ini_file[i]))
2093                                         return 1;
2094                                 free(ini_file[i]);
2095                         } else if (!is_backend) {
2096                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2097                                         return 1;
2098                                 free(ini_file[i]);
2099                         }
2100                 }
2101         } else if (nr_clients) {
2102                 if (fill_def_thread())
2103                         return 1;
2104                 if (fio_clients_send_ini(NULL))
2105                         return 1;
2106         }
2107
2108         free(ini_file);
2109         fio_options_free(&def_thread);
2110         filesetup_mem_free();
2111
2112         if (!thread_number) {
2113                 if (parse_dryrun())
2114                         return 0;
2115                 if (exec_profile)
2116                         return 0;
2117                 if (is_backend || nr_clients)
2118                         return 0;
2119                 if (did_arg)
2120                         return 0;
2121
2122                 log_err("No jobs(s) defined\n\n");
2123
2124                 if (!did_arg) {
2125                         usage(argv[0]);
2126                         return 1;
2127                 }
2128
2129                 return 0;
2130         }
2131
2132         if (def_thread.o.gtod_offload) {
2133                 fio_gtod_init();
2134                 fio_gtod_offload = 1;
2135                 fio_gtod_cpu = def_thread.o.gtod_cpu;
2136         }
2137
2138         if (output_format == FIO_OUTPUT_NORMAL)
2139                 log_info("%s\n", fio_version_string);
2140
2141         return 0;
2142 }
2143
2144 void options_default_fill(struct thread_options *o)
2145 {
2146         memcpy(o, &def_thread.o, sizeof(*o));
2147 }