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 #if FIO_PATCH > 0
  27 static char fio_version_string[] =      __fio_stringify(FIO_MAJOR) "."  \
  28                                         __fio_stringify(FIO_MINOR) "."  \
  29                                         __fio_stringify(FIO_PATCH);
  30 #else
  31 static char fio_version_string[] =      __fio_stringify(FIO_MAJOR) "."  \
  32                                         __fio_stringify(FIO_MINOR);
  33 #endif
  34
  35 #define FIO_RANDSEED            (0xb1899bedUL)
  36
  37 static char **ini_file;
  38 static int max_jobs = FIO_MAX_JOBS;
  39 static int dump_cmdline;
  40 static int def_timeout;
  41
  42 static struct thread_data def_thread;
  43 struct thread_data *threads = NULL;
  44
  45 int exitall_on_terminate = 0;
  46 int terse_output = 0;
  47 int eta_print;
  48 unsigned long long mlock_size = 0;
  49 FILE *f_out = NULL;
  50 FILE *f_err = NULL;
  51 char **job_sections = NULL;
  52 int nr_job_sections = 0;
  53 char *exec_profile = NULL;
  54 int warnings_fatal = 0;
  55 int terse_version = 2;
  56 int is_backend = 0;
  57 int nr_clients = 0;
  58 int log_syslog = 0;
  59
  60 int write_bw_log = 0;
  61 int read_only = 0;
  62
  63 static int write_lat_log;
  64
  65 static int prev_group_jobs;
  66
  67 unsigned long fio_debug = 0;
  68 unsigned int fio_debug_jobno = -1;
  69 unsigned int *fio_debug_jobp = NULL;
  70
  71 static char cmd_optstr[256];
  72 static int did_arg;
  73
  74 const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
  75         { .u.f  =  1.0 },
  76         { .u.f  =  5.0 },
  77         { .u.f  = 10.0 },
  78         { .u.f  = 20.0 },
  79         { .u.f  = 30.0 },
  80         { .u.f  = 40.0 },
  81         { .u.f  = 50.0 },
  82         { .u.f  = 60.0 },
  83         { .u.f  = 70.0 },
  84         { .u.f  = 80.0 },
  85         { .u.f  = 90.0 },
  86         { .u.f  = 95.0 },
  87         { .u.f  = 99.0 },
  88         { .u.f  = 99.5 },
  89         { .u.f  = 99.9 },
  90 };
  91
  92 #define FIO_CLIENT_FLAG         (1 << 16)
  93
  94 /*
  95  * Command line options. These will contain the above, plus a few
  96  * extra that only pertain to fio itself and not jobs.
  97  */
  98 static struct option l_opts[FIO_NR_OPTIONS] = {
  99         {
 100                 .name           = (char *) "output",
 101                 .has_arg        = required_argument,
 102                 .val            = 'o' | FIO_CLIENT_FLAG,
 103         },
 104         {
 105                 .name           = (char *) "timeout",
 106                 .has_arg        = required_argument,
 107                 .val            = 't' | FIO_CLIENT_FLAG,
 108         },
 109         {
 110                 .name           = (char *) "latency-log",
 111                 .has_arg        = required_argument,
 112                 .val            = 'l' | FIO_CLIENT_FLAG,
 113         },
 114         {
 115                 .name           = (char *) "bandwidth-log",
 116                 .has_arg        = required_argument,
 117                 .val            = 'b' | FIO_CLIENT_FLAG,
 118         },
 119         {
 120                 .name           = (char *) "minimal",
 121                 .has_arg        = optional_argument,
 122                 .val            = 'm' | FIO_CLIENT_FLAG,
 123         },
 124         {
 125                 .name           = (char *) "version",
 126                 .has_arg        = no_argument,
 127                 .val            = 'v' | FIO_CLIENT_FLAG,
 128         },
 129         {
 130                 .name           = (char *) "help",
 131                 .has_arg        = no_argument,
 132                 .val            = 'h' | FIO_CLIENT_FLAG,
 133         },
 134         {
 135                 .name           = (char *) "cmdhelp",
 136                 .has_arg        = optional_argument,
 137                 .val            = 'c' | FIO_CLIENT_FLAG,
 138         },
 139         {
 140                 .name           = (char *) "showcmd",
 141                 .has_arg        = no_argument,
 142                 .val            = 's' | FIO_CLIENT_FLAG,
 143         },
 144         {
 145                 .name           = (char *) "readonly",
 146                 .has_arg        = no_argument,
 147                 .val            = 'r' | FIO_CLIENT_FLAG,
 148         },
 149         {
 150                 .name           = (char *) "eta",
 151                 .has_arg        = required_argument,
 152                 .val            = 'e' | FIO_CLIENT_FLAG,
 153         },
 154         {
 155                 .name           = (char *) "debug",
 156                 .has_arg        = required_argument,
 157                 .val            = 'd' | FIO_CLIENT_FLAG,
 158         },
 159         {
 160                 .name           = (char *) "section",
 161                 .has_arg        = required_argument,
 162                 .val            = 'x' | FIO_CLIENT_FLAG,
 163         },
 164         {
 165                 .name           = (char *) "alloc-size",
 166                 .has_arg        = required_argument,
 167                 .val            = 'a' | FIO_CLIENT_FLAG,
 168         },
 169         {
 170                 .name           = (char *) "profile",
 171                 .has_arg        = required_argument,
 172                 .val            = 'p' | FIO_CLIENT_FLAG,
 173         },
 174         {
 175                 .name           = (char *) "warnings-fatal",
 176                 .has_arg        = no_argument,
 177                 .val            = 'w' | FIO_CLIENT_FLAG,
 178         },
 179         {
 180                 .name           = (char *) "max-jobs",
 181                 .has_arg        = required_argument,
 182                 .val            = 'j' | FIO_CLIENT_FLAG,
 183         },
 184         {
 185                 .name           = (char *) "terse-version",
 186                 .has_arg        = required_argument,
 187                 .val            = 'V' | FIO_CLIENT_FLAG,
 188         },
 189         {
 190                 .name           = (char *) "server",
 191                 .has_arg        = no_argument,
 192                 .val            = 'S',
 193         },
 194         {       .name           = (char *) "daemonize",
 195                 .has_arg        = no_argument,
 196                 .val            = 'D',
 197         },
 198         {
 199                 .name           = (char *) "net-port",
 200                 .has_arg        = required_argument,
 201                 .val            = 'P',
 202         },
 203         {
 204                 .name           = (char *) "client",
 205                 .has_arg        = required_argument,
 206                 .val            = 'C',
 207         },
 208         {
 209                 .name           = NULL,
 210         },
 211 };
 212
 213 static void free_shm(void)
 214 {
 215         struct shmid_ds sbuf;
 216
 217         if (threads) {
 218                 void *tp = threads;
 219
 220                 threads = NULL;
 221                 file_hash_exit();
 222                 fio_debug_jobp = NULL;
 223                 shmdt(tp);
 224                 shmctl(shm_id, IPC_RMID, &sbuf);
 225         }
 226
 227         scleanup();
 228 }
 229
 230 /*
 231  * The thread area is shared between the main process and the job
 232  * threads/processes. So setup a shared memory segment that will hold
 233  * all the job info. We use the end of the region for keeping track of
 234  * open files across jobs, for file sharing.
 235  */
 236 static int setup_thread_area(void)
 237 {
 238         void *hash;
 239
 240         if (threads)
 241                 return 0;
 242
 243         /*
 244          * 1024 is too much on some machines, scale max_jobs if
 245          * we get a failure that looks like too large a shm segment
 246          */
 247         do {
 248                 size_t size = max_jobs * sizeof(struct thread_data);
 249
 250                 size += file_hash_size;
 251                 size += sizeof(unsigned int);
 252
 253                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 254                 if (shm_id != -1)
 255                         break;
 256                 if (errno != EINVAL) {
 257                         perror("shmget");
 258                         break;
 259                 }
 260
 261                 max_jobs >>= 1;
 262         } while (max_jobs);
 263
 264         if (shm_id == -1)
 265                 return 1;
 266
 267         threads = shmat(shm_id, NULL, 0);
 268         if (threads == (void *) -1) {
 269                 perror("shmat");
 270                 return 1;
 271         }
 272
 273         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 274         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 275         fio_debug_jobp = (void *) hash + file_hash_size;
 276         *fio_debug_jobp = -1;
 277         file_hash_init(hash);
 278         return 0;
 279 }
 280
 281 /*
 282  * Return a free job structure.
 283  */
 284 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 285 {
 286         struct thread_data *td;
 287
 288         if (global)
 289                 return &def_thread;
 290         if (setup_thread_area()) {
 291                 log_err("error: failed to setup shm segment\n");
 292                 return NULL;
 293         }
 294         if (thread_number >= max_jobs) {
 295                 log_err("error: maximum number of jobs (%d) reached.\n",
 296                                 max_jobs);
 297                 return NULL;
 298         }
 299
 300         td = &threads[thread_number++];
 301         *td = *parent;
 302
 303         td->o.uid = td->o.gid = -1U;
 304
 305         dup_files(td, parent);
 306         options_mem_dupe(td);
 307
 308         profile_add_hooks(td);
 309
 310         td->thread_number = thread_number;
 311         return td;
 312 }
 313
 314 static void put_job(struct thread_data *td)
 315 {
 316         if (td == &def_thread)
 317                 return;
 318
 319         profile_td_exit(td);
 320
 321         if (td->error)
 322                 log_info("fio: %s\n", td->verror);
 323
 324         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 325         thread_number--;
 326 }
 327
 328 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 329 {
 330         unsigned int bs = td->o.min_bs[ddir];
 331         unsigned long long bytes_per_sec;
 332
 333         assert(ddir_rw(ddir));
 334
 335         if (td->o.rate[ddir])
 336                 bytes_per_sec = td->o.rate[ddir];
 337         else
 338                 bytes_per_sec = td->o.rate_iops[ddir] * bs;
 339
 340         if (!bytes_per_sec) {
 341                 log_err("rate lower than supported\n");
 342                 return -1;
 343         }
 344
 345         td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
 346         td->rate_pending_usleep[ddir] = 0;
 347         return 0;
 348 }
 349
 350 static int setup_rate(struct thread_data *td)
 351 {
 352         int ret = 0;
 353
 354         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 355                 ret = __setup_rate(td, DDIR_READ);
 356         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 357                 ret |= __setup_rate(td, DDIR_WRITE);
 358
 359         return ret;
 360 }
 361
 362 static int fixed_block_size(struct thread_options *o)
 363 {
 364         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 365                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 366                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
 367 }
 368
 369 /*
 370  * Lazy way of fixing up options that depend on each other. We could also
 371  * define option callback handlers, but this is easier.
 372  */
 373 static int fixup_options(struct thread_data *td)
 374 {
 375         struct thread_options *o = &td->o;
 376         int ret = 0;
 377
 378 #ifndef FIO_HAVE_PSHARED_MUTEX
 379         if (!o->use_thread) {
 380                 log_info("fio: this platform does not support process shared"
 381                          " mutexes, forcing use of threads. Use the 'thread'"
 382                          " option to get rid of this warning.\n");
 383                 o->use_thread = 1;
 384                 ret = warnings_fatal;
 385         }
 386 #endif
 387
 388         if (o->write_iolog_file && o->read_iolog_file) {
 389                 log_err("fio: read iolog overrides write_iolog\n");
 390                 free(o->write_iolog_file);
 391                 o->write_iolog_file = NULL;
 392                 ret = warnings_fatal;
 393         }
 394
 395         /*
 396          * only really works for sequential io for now, and with 1 file
 397          */
 398         if (o->zone_size && td_random(td) && o->open_files == 1)
 399                 o->zone_size = 0;
 400
 401         /*
 402          * Reads can do overwrites, we always need to pre-create the file
 403          */
 404         if (td_read(td) || td_rw(td))
 405                 o->overwrite = 1;
 406
 407         if (!o->min_bs[DDIR_READ])
 408                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 409         if (!o->max_bs[DDIR_READ])
 410                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 411         if (!o->min_bs[DDIR_WRITE])
 412                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 413         if (!o->max_bs[DDIR_WRITE])
 414                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 415
 416         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 417
 418         /*
 419          * For random IO, allow blockalign offset other than min_bs.
 420          */
 421         if (!o->ba[DDIR_READ] || !td_random(td))
 422                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 423         if (!o->ba[DDIR_WRITE] || !td_random(td))
 424                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 425
 426         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 427             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
 428             !o->norandommap) {
 429                 log_err("fio: Any use of blockalign= turns off randommap\n");
 430                 o->norandommap = 1;
 431                 ret = warnings_fatal;
 432         }
 433
 434         if (!o->file_size_high)
 435                 o->file_size_high = o->file_size_low;
 436
 437         if (o->norandommap && o->verify != VERIFY_NONE
 438             && !fixed_block_size(o))  {
 439                 log_err("fio: norandommap given for variable block sizes, "
 440                         "verify disabled\n");
 441                 o->verify = VERIFY_NONE;
 442                 ret = warnings_fatal;
 443         }
 444         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 445                 log_err("fio: bs_unaligned may not work with raw io\n");
 446
 447         /*
 448          * thinktime_spin must be less than thinktime
 449          */
 450         if (o->thinktime_spin > o->thinktime)
 451                 o->thinktime_spin = o->thinktime;
 452
 453         /*
 454          * The low water mark cannot be bigger than the iodepth
 455          */
 456         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 457                 /*
 458                  * syslet work around - if the workload is sequential,
 459                  * we want to let the queue drain all the way down to
 460                  * avoid seeking between async threads
 461                  */
 462                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 463                         o->iodepth_low = 1;
 464                 else
 465                         o->iodepth_low = o->iodepth;
 466         }
 467
 468         /*
 469          * If batch number isn't set, default to the same as iodepth
 470          */
 471         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 472                 o->iodepth_batch = o->iodepth;
 473
 474         if (o->nr_files > td->files_index)
 475                 o->nr_files = td->files_index;
 476
 477         if (o->open_files > o->nr_files || !o->open_files)
 478                 o->open_files = o->nr_files;
 479
 480         if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
 481             ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
 482                 o->rate_iops_min[1]))) {
 483                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 484                 ret = 1;
 485         }
 486         if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
 487             (o->rate_iops[0] < o->rate_iops_min[0]) ||
 488             (o->rate_iops[1] < o->rate_iops_min[1])) {
 489                 log_err("fio: minimum rate exceeds rate\n");
 490                 ret = 1;
 491         }
 492
 493         if (!o->timeout && o->time_based) {
 494                 log_err("fio: time_based requires a runtime/timeout setting\n");
 495                 o->time_based = 0;
 496                 ret = warnings_fatal;
 497         }
 498
 499         if (o->fill_device && !o->size)
 500                 o->size = -1ULL;
 501
 502         if (o->verify != VERIFY_NONE) {
 503                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 504                         log_info("Multiple writers may overwrite blocks that "
 505                                 "belong to other jobs. This can cause "
 506                                 "verification failures.\n");
 507                         ret = warnings_fatal;
 508                 }
 509
 510                 o->refill_buffers = 1;
 511                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 512                     !o->verify_interval)
 513                         o->verify_interval = o->min_bs[DDIR_WRITE];
 514         }
 515
 516         if (o->pre_read) {
 517                 o->invalidate_cache = 0;
 518                 if (td->io_ops->flags & FIO_PIPEIO) {
 519                         log_info("fio: cannot pre-read files with an IO engine"
 520                                  " that isn't seekable. Pre-read disabled.\n");
 521                         ret = warnings_fatal;
 522                 }
 523         }
 524
 525 #ifndef FIO_HAVE_FDATASYNC
 526         if (o->fdatasync_blocks) {
 527                 log_info("fio: this platform does not support fdatasync()"
 528                          " falling back to using fsync().  Use the 'fsync'"
 529                          " option instead of 'fdatasync' to get rid of"
 530                          " this warning\n");
 531                 o->fsync_blocks = o->fdatasync_blocks;
 532                 o->fdatasync_blocks = 0;
 533                 ret = warnings_fatal;
 534         }
 535 #endif
 536
 537         return ret;
 538 }
 539
 540 /*
 541  * This function leaks the buffer
 542  */
 543 static char *to_kmg(unsigned int val)
 544 {
 545         char *buf = malloc(32);
 546         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 547         char *p = post;
 548
 549         do {
 550                 if (val & 1023)
 551                         break;
 552
 553                 val >>= 10;
 554                 p++;
 555         } while (*p);
 556
 557         snprintf(buf, 31, "%u%c", val, *p);
 558         return buf;
 559 }
 560
 561 /* External engines are specified by "external:name.o") */
 562 static const char *get_engine_name(const char *str)
 563 {
 564         char *p = strstr(str, ":");
 565
 566         if (!p)
 567                 return str;
 568
 569         p++;
 570         strip_blank_front(&p);
 571         strip_blank_end(p);
 572         return p;
 573 }
 574
 575 static int exists_and_not_file(const char *filename)
 576 {
 577         struct stat sb;
 578
 579         if (lstat(filename, &sb) == -1)
 580                 return 0;
 581
 582         /* \\.\ is the device namespace in Windows, where every file
 583          * is a device node */
 584         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 585                 return 0;
 586
 587         return 1;
 588 }
 589
 590 static void td_fill_rand_seeds_os(struct thread_data *td)
 591 {
 592         os_random_seed(td->rand_seeds[0], &td->bsrange_state);
 593         os_random_seed(td->rand_seeds[1], &td->verify_state);
 594         os_random_seed(td->rand_seeds[2], &td->rwmix_state);
 595
 596         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 597                 os_random_seed(td->rand_seeds[3], &td->next_file_state);
 598
 599         os_random_seed(td->rand_seeds[5], &td->file_size_state);
 600         os_random_seed(td->rand_seeds[6], &td->trim_state);
 601
 602         if (!td_random(td))
 603                 return;
 604
 605         if (td->o.rand_repeatable)
 606                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 607
 608         os_random_seed(td->rand_seeds[4], &td->random_state);
 609 }
 610
 611 static void td_fill_rand_seeds_internal(struct thread_data *td)
 612 {
 613         init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
 614         init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
 615         init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
 616
 617         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 618                 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
 619
 620         init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
 621         init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
 622
 623         if (!td_random(td))
 624                 return;
 625
 626         if (td->o.rand_repeatable)
 627                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 628
 629         init_rand_seed(&td->__random_state, td->rand_seeds[4]);
 630 }
 631
 632 void td_fill_rand_seeds(struct thread_data *td)
 633 {
 634         if (td->o.use_os_rand)
 635                 td_fill_rand_seeds_os(td);
 636         else
 637                 td_fill_rand_seeds_internal(td);
 638
 639         init_rand_seed(&td->buf_state, td->rand_seeds[7]);
 640 }
 641
 642 /*
 643  * Initialize the various random states we need (random io, block size ranges,
 644  * read/write mix, etc).
 645  */
 646 static int init_random_state(struct thread_data *td)
 647 {
 648         int fd;
 649
 650         fd = open("/dev/urandom", O_RDONLY);
 651         if (fd == -1) {
 652                 td_verror(td, errno, "open");
 653                 return 1;
 654         }
 655
 656         if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
 657             (int) sizeof(td->rand_seeds)) {
 658                 td_verror(td, EIO, "read");
 659                 close(fd);
 660                 return 1;
 661         }
 662
 663         close(fd);
 664         td_fill_rand_seeds(td);
 665         return 0;
 666 }
 667
 668 /*
 669  * Adds a job to the list of things todo. Sanitizes the various options
 670  * to make sure we don't have conflicts, and initializes various
 671  * members of td.
 672  */
 673 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 674 {
 675         const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
 676                                    "randread", "randwrite", "randrw" };
 677         unsigned int i;
 678         const char *engine;
 679         char fname[PATH_MAX];
 680         int numjobs, file_alloced;
 681
 682         /*
 683          * the def_thread is just for options, it's not a real job
 684          */
 685         if (td == &def_thread)
 686                 return 0;
 687
 688         /*
 689          * if we are just dumping the output command line, don't add the job
 690          */
 691         if (dump_cmdline) {
 692                 put_job(td);
 693                 return 0;
 694         }
 695
 696         if (profile_td_init(td))
 697                 goto err;
 698
 699         engine = get_engine_name(td->o.ioengine);
 700         td->io_ops = load_ioengine(td, engine);
 701         if (!td->io_ops) {
 702                 log_err("fio: failed to load engine %s\n", engine);
 703                 goto err;
 704         }
 705
 706         if (td->o.use_thread)
 707                 nr_thread++;
 708         else
 709                 nr_process++;
 710
 711         if (td->o.odirect)
 712                 td->io_ops->flags |= FIO_RAWIO;
 713
 714         file_alloced = 0;
 715         if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
 716                 file_alloced = 1;
 717
 718                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 719                         add_file(td, jobname);
 720                 else {
 721                         for (i = 0; i < td->o.nr_files; i++) {
 722                                 sprintf(fname, "%s.%d.%d", jobname,
 723                                                         td->thread_number, i);
 724                                 add_file(td, fname);
 725                         }
 726                 }
 727         }
 728
 729         if (fixup_options(td))
 730                 goto err;
 731
 732         if (td->io_ops->flags & FIO_DISKLESSIO) {
 733                 struct fio_file *f;
 734
 735                 for_each_file(td, f, i)
 736                         f->real_file_size = -1ULL;
 737         }
 738
 739         td->mutex = fio_mutex_init(0);
 740
 741         td->ts.clat_percentiles = td->o.clat_percentiles;
 742         if (td->o.overwrite_plist)
 743                 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
 744         else
 745                 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
 746
 747         td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
 748         td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
 749         td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
 750         td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 751         td->ddir_seq_nr = td->o.ddir_seq_nr;
 752
 753         if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
 754                 prev_group_jobs = 0;
 755                 groupid++;
 756         }
 757
 758         td->groupid = groupid;
 759         prev_group_jobs++;
 760
 761         if (init_random_state(td))
 762                 goto err;
 763
 764         if (setup_rate(td))
 765                 goto err;
 766
 767         if (td->o.write_lat_log) {
 768                 setup_log(&td->lat_log);
 769                 setup_log(&td->slat_log);
 770                 setup_log(&td->clat_log);
 771         }
 772         if (td->o.write_bw_log)
 773                 setup_log(&td->bw_log);
 774         if (td->o.write_iops_log)
 775                 setup_log(&td->iops_log);
 776
 777         if (!td->o.name)
 778                 td->o.name = strdup(jobname);
 779
 780         if (!terse_output) {
 781                 if (!job_add_num) {
 782                         if (!strcmp(td->io_ops->name, "cpuio")) {
 783                                 log_info("%s: ioengine=cpu, cpuload=%u,"
 784                                          " cpucycle=%u\n", td->o.name,
 785                                                         td->o.cpuload,
 786                                                         td->o.cpucycle);
 787                         } else {
 788                                 char *c1, *c2, *c3, *c4;
 789
 790                                 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
 791                                 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
 792                                 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
 793                                 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 794
 795                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
 796                                          " ioengine=%s, iodepth=%u\n",
 797                                                 td->o.name, td->groupid,
 798                                                 ddir_str[td->o.td_ddir],
 799                                                 c1, c2, c3, c4,
 800                                                 td->io_ops->name,
 801                                                 td->o.iodepth);
 802
 803                                 free(c1);
 804                                 free(c2);
 805                                 free(c3);
 806                                 free(c4);
 807                         }
 808                 } else if (job_add_num == 1)
 809                         log_info("...\n");
 810         }
 811
 812         /*
 813          * recurse add identical jobs, clear numjobs and stonewall options
 814          * as they don't apply to sub-jobs
 815          */
 816         numjobs = td->o.numjobs;
 817         while (--numjobs) {
 818                 struct thread_data *td_new = get_new_job(0, td);
 819
 820                 if (!td_new)
 821                         goto err;
 822
 823                 td_new->o.numjobs = 1;
 824                 td_new->o.stonewall = 0;
 825                 td_new->o.new_group = 0;
 826
 827                 if (file_alloced) {
 828                         td_new->o.filename = NULL;
 829                         td_new->files_index = 0;
 830                         td_new->files_size = 0;
 831                         td_new->files = NULL;
 832                 }
 833
 834                 job_add_num = numjobs - 1;
 835
 836                 if (add_job(td_new, jobname, job_add_num))
 837                         goto err;
 838         }
 839
 840         return 0;
 841 err:
 842         put_job(td);
 843         return -1;
 844 }
 845
 846 /*
 847  * Parse as if 'o' was a command line
 848  */
 849 void add_job_opts(const char **o)
 850 {
 851         struct thread_data *td, *td_parent;
 852         int i, in_global = 1;
 853         char jobname[32];
 854
 855         i = 0;
 856         td_parent = td = NULL;
 857         while (o[i]) {
 858                 if (!strncmp(o[i], "name", 4)) {
 859                         in_global = 0;
 860                         if (td)
 861                                 add_job(td, jobname, 0);
 862                         td = NULL;
 863                         sprintf(jobname, "%s", o[i] + 5);
 864                 }
 865                 if (in_global && !td_parent)
 866                         td_parent = get_new_job(1, &def_thread);
 867                 else if (!in_global && !td) {
 868                         if (!td_parent)
 869                                 td_parent = &def_thread;
 870                         td = get_new_job(0, td_parent);
 871                 }
 872                 if (in_global)
 873                         fio_options_parse(td_parent, (char **) &o[i], 1);
 874                 else
 875                         fio_options_parse(td, (char **) &o[i], 1);
 876                 i++;
 877         }
 878
 879         if (td)
 880                 add_job(td, jobname, 0);
 881 }
 882
 883 static int skip_this_section(const char *name)
 884 {
 885         int i;
 886
 887         if (!nr_job_sections)
 888                 return 0;
 889         if (!strncmp(name, "global", 6))
 890                 return 0;
 891
 892         for (i = 0; i < nr_job_sections; i++)
 893                 if (!strcmp(job_sections[i], name))
 894                         return 0;
 895
 896         return 1;
 897 }
 898
 899 static int is_empty_or_comment(char *line)
 900 {
 901         unsigned int i;
 902
 903         for (i = 0; i < strlen(line); i++) {
 904                 if (line[i] == ';')
 905                         return 1;
 906                 if (line[i] == '#')
 907                         return 1;
 908                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
 909                         return 0;
 910         }
 911
 912         return 1;
 913 }
 914
 915 /*
 916  * This is our [ini] type file parser.
 917  */
 918 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
 919 {
 920         unsigned int global;
 921         struct thread_data *td;
 922         char *string, *name;
 923         FILE *f;
 924         char *p;
 925         int ret = 0, stonewall;
 926         int first_sect = 1;
 927         int skip_fgets = 0;
 928         int inside_skip = 0;
 929         char **opts;
 930         int i, alloc_opts, num_opts;
 931
 932         if (is_buf)
 933                 f = NULL;
 934         else {
 935                 if (!strcmp(file, "-"))
 936                         f = stdin;
 937                 else
 938                         f = fopen(file, "r");
 939
 940                 if (!f) {
 941                         perror("fopen job file");
 942                         return 1;
 943                 }
 944         }
 945
 946         string = malloc(4096);
 947
 948         /*
 949          * it's really 256 + small bit, 280 should suffice
 950          */
 951         name = malloc(280);
 952         memset(name, 0, 280);
 953
 954         alloc_opts = 8;
 955         opts = malloc(sizeof(char *) * alloc_opts);
 956         num_opts = 0;
 957
 958         stonewall = stonewall_flag;
 959         do {
 960                 /*
 961                  * if skip_fgets is set, we already have loaded a line we
 962                  * haven't handled.
 963                  */
 964                 if (!skip_fgets) {
 965                         if (is_buf)
 966                                 p = strsep(&file, "\n");
 967                         else
 968                                 p = fgets(string, 4095, f);
 969                         if (!p)
 970                                 break;
 971                 }
 972
 973                 skip_fgets = 0;
 974                 strip_blank_front(&p);
 975                 strip_blank_end(p);
 976
 977                 if (is_empty_or_comment(p))
 978                         continue;
 979                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
 980                         if (inside_skip)
 981                                 continue;
 982                         log_err("fio: option <%s> outside of [] job section\n",
 983                                                                         p);
 984                         break;
 985                 }
 986
 987                 name[strlen(name) - 1] = '\0';
 988
 989                 if (skip_this_section(name)) {
 990                         inside_skip = 1;
 991                         continue;
 992                 } else
 993                         inside_skip = 0;
 994
 995                 global = !strncmp(name, "global", 6);
 996
 997                 if (dump_cmdline) {
 998                         if (first_sect)
 999                                 log_info("fio ");
1000                         if (!global)
1001                                 log_info("--name=%s ", name);
1002                         first_sect = 0;
1003                 }
1004
1005                 td = get_new_job(global, &def_thread);
1006                 if (!td) {
1007                         ret = 1;
1008                         break;
1009                 }
1010
1011                 /*
1012                  * Seperate multiple job files by a stonewall
1013                  */
1014                 if (!global && stonewall) {
1015                         td->o.stonewall = stonewall;
1016                         stonewall = 0;
1017                 }
1018
1019                 num_opts = 0;
1020                 memset(opts, 0, alloc_opts * sizeof(char *));
1021
1022                 while (1) {
1023                         if (is_buf)
1024                                 p = strsep(&file, "\n");
1025                         else
1026                                 p = fgets(string, 4096, f);
1027                         if (!p)
1028                                 break;
1029
1030                         if (is_empty_or_comment(p))
1031                                 continue;
1032
1033                         strip_blank_front(&p);
1034
1035                         /*
1036                          * new section, break out and make sure we don't
1037                          * fgets() a new line at the top.
1038                          */
1039                         if (p[0] == '[') {
1040                                 skip_fgets = 1;
1041                                 break;
1042                         }
1043
1044                         strip_blank_end(p);
1045
1046                         if (num_opts == alloc_opts) {
1047                                 alloc_opts <<= 1;
1048                                 opts = realloc(opts,
1049                                                 alloc_opts * sizeof(char *));
1050                         }
1051
1052                         opts[num_opts] = strdup(p);
1053                         num_opts++;
1054                 }
1055
1056                 ret = fio_options_parse(td, opts, num_opts);
1057                 if (!ret) {
1058                         if (dump_cmdline)
1059                                 for (i = 0; i < num_opts; i++)
1060                                         log_info("--%s ", opts[i]);
1061
1062                         ret = add_job(td, name, 0);
1063                 } else {
1064                         log_err("fio: job %s dropped\n", name);
1065                         put_job(td);
1066                 }
1067
1068                 for (i = 0; i < num_opts; i++)
1069                         free(opts[i]);
1070                 num_opts = 0;
1071         } while (!ret);
1072
1073         if (dump_cmdline)
1074                 log_info("\n");
1075
1076         for (i = 0; i < num_opts; i++)
1077                 free(opts[i]);
1078
1079         free(string);
1080         free(name);
1081         free(opts);
1082         if (!is_buf && f != stdin)
1083                 fclose(f);
1084         return ret;
1085 }
1086
1087 static int fill_def_thread(void)
1088 {
1089         memset(&def_thread, 0, sizeof(def_thread));
1090
1091         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1092         def_thread.o.timeout = def_timeout;
1093
1094         /*
1095          * fill default options
1096          */
1097         fio_fill_default_options(&def_thread);
1098         return 0;
1099 }
1100
1101 static void usage(const char *name)
1102 {
1103         printf("fio %s\n", fio_version_string);
1104         printf("%s [options] [job options] <job file(s)>\n", name);
1105         printf("\t--debug=options\tEnable debug logging\n");
1106         printf("\t--output\tWrite output to file\n");
1107         printf("\t--timeout\tRuntime in seconds\n");
1108         printf("\t--latency-log\tGenerate per-job latency logs\n");
1109         printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1110         printf("\t--minimal\tMinimal (terse) output\n");
1111         printf("\t--version\tPrint version info and exit\n");
1112         printf("\t--terse-version=x Terse version output format\n");
1113         printf("\t--help\t\tPrint this page\n");
1114         printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
1115                 " them\n");
1116         printf("\t--showcmd\tTurn a job file into command line options\n");
1117         printf("\t--eta=when\tWhen ETA estimate should be printed\n");
1118         printf("\t          \tMay be \"always\", \"never\" or \"auto\"\n");
1119         printf("\t--readonly\tTurn on safety read-only checks, preventing"
1120                 " writes\n");
1121         printf("\t--section=name\tOnly run specified section in job file\n");
1122         printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
1123                 " (def 1024)\n");
1124         printf("\t--warnings-fatal Fio parser warnings are fatal\n");
1125         printf("\t--max-jobs\tMaximum number of threads/processes to support\n");
1126         printf("\t--server\tStart a backend fio server\n");
1127         printf("\t--client=hostname Talk to remove backend fio server at hostname\n");
1128         printf("\t--net-port=port\tUse specified port for client/server connection\n");
1129         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1130         printf("\n                   Jens Axboe <jaxboe@fusionio.com>\n");
1131 }
1132
1133 #ifdef FIO_INC_DEBUG
1134 struct debug_level debug_levels[] = {
1135         { .name = "process",    .shift = FD_PROCESS, },
1136         { .name = "file",       .shift = FD_FILE, },
1137         { .name = "io",         .shift = FD_IO, },
1138         { .name = "mem",        .shift = FD_MEM, },
1139         { .name = "blktrace",   .shift = FD_BLKTRACE },
1140         { .name = "verify",     .shift = FD_VERIFY },
1141         { .name = "random",     .shift = FD_RANDOM },
1142         { .name = "parse",      .shift = FD_PARSE },
1143         { .name = "diskutil",   .shift = FD_DISKUTIL },
1144         { .name = "job",        .shift = FD_JOB },
1145         { .name = "mutex",      .shift = FD_MUTEX },
1146         { .name = "profile",    .shift = FD_PROFILE },
1147         { .name = "time",       .shift = FD_TIME },
1148         { .name = "net",        .shift = FD_NET },
1149         { .name = NULL, },
1150 };
1151
1152 static int set_debug(const char *string)
1153 {
1154         struct debug_level *dl;
1155         char *p = (char *) string;
1156         char *opt;
1157         int i;
1158
1159         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1160                 log_info("fio: dumping debug options:");
1161                 for (i = 0; debug_levels[i].name; i++) {
1162                         dl = &debug_levels[i];
1163                         log_info("%s,", dl->name);
1164                 }
1165                 log_info("all\n");
1166                 return 1;
1167         }
1168
1169         while ((opt = strsep(&p, ",")) != NULL) {
1170                 int found = 0;
1171
1172                 if (!strncmp(opt, "all", 3)) {
1173                         log_info("fio: set all debug options\n");
1174                         fio_debug = ~0UL;
1175                         continue;
1176                 }
1177
1178                 for (i = 0; debug_levels[i].name; i++) {
1179                         dl = &debug_levels[i];
1180                         found = !strncmp(opt, dl->name, strlen(dl->name));
1181                         if (!found)
1182                                 continue;
1183
1184                         if (dl->shift == FD_JOB) {
1185                                 opt = strchr(opt, ':');
1186                                 if (!opt) {
1187                                         log_err("fio: missing job number\n");
1188                                         break;
1189                                 }
1190                                 opt++;
1191                                 fio_debug_jobno = atoi(opt);
1192                                 log_info("fio: set debug jobno %d\n",
1193                                                         fio_debug_jobno);
1194                         } else {
1195                                 log_info("fio: set debug option %s\n", opt);
1196                                 fio_debug |= (1UL << dl->shift);
1197                         }
1198                         break;
1199                 }
1200
1201                 if (!found)
1202                         log_err("fio: debug mask %s not found\n", opt);
1203         }
1204         return 0;
1205 }
1206 #else
1207 static int set_debug(const char *string)
1208 {
1209         log_err("fio: debug tracing not included in build\n");
1210         return 1;
1211 }
1212 #endif
1213
1214 static void fio_options_fill_optstring(void)
1215 {
1216         char *ostr = cmd_optstr;
1217         int i, c;
1218
1219         c = i = 0;
1220         while (l_opts[i].name) {
1221                 ostr[c++] = l_opts[i].val;
1222                 if (l_opts[i].has_arg == required_argument)
1223                         ostr[c++] = ':';
1224                 else if (l_opts[i].has_arg == optional_argument) {
1225                         ostr[c++] = ':';
1226                         ostr[c++] = ':';
1227                 }
1228                 i++;
1229         }
1230         ostr[c] = '\0';
1231 }
1232
1233 static int client_flag_set(char c)
1234 {
1235         int i;
1236
1237         i = 0;
1238         while (l_opts[i].name) {
1239                 int val = l_opts[i].val;
1240
1241                 if (c == (val & 0xff))
1242                         return (val & FIO_CLIENT_FLAG);
1243
1244                 i++;
1245         }
1246
1247         return 0;
1248 }
1249
1250 int parse_cmd_client(char *client, char *opt)
1251 {
1252         return fio_client_add_cmd_option(client, opt);
1253 }
1254
1255 int parse_cmd_line(int argc, char *argv[])
1256 {
1257         struct thread_data *td = NULL;
1258         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1259         char *ostr = cmd_optstr;
1260         int daemonize_server = 0;
1261         char *cur_client = NULL;
1262         int backend = 0;
1263
1264         /*
1265          * Reset optind handling, since we may call this multiple times
1266          * for the backend.
1267          */
1268         optind = 1;
1269
1270         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1271                 did_arg = 1;
1272
1273                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1274                         if (parse_cmd_client(cur_client, argv[optind - 1])) {
1275                                 exit_val = 1;
1276                                 do_exit++;
1277                                 break;
1278                         }
1279                         c &= ~FIO_CLIENT_FLAG;
1280                 }
1281
1282                 switch (c) {
1283                 case 'a':
1284                         smalloc_pool_size = atoi(optarg);
1285                         break;
1286                 case 't':
1287                         def_timeout = atoi(optarg);
1288                         break;
1289                 case 'l':
1290                         write_lat_log = 1;
1291                         break;
1292                 case 'b':
1293                         write_bw_log = 1;
1294                         break;
1295                 case 'o':
1296                         f_out = fopen(optarg, "w+");
1297                         if (!f_out) {
1298                                 perror("fopen output");
1299                                 exit(1);
1300                         }
1301                         f_err = f_out;
1302                         break;
1303                 case 'm':
1304                         terse_output = 1;
1305                         break;
1306                 case 'h':
1307                         if (!cur_client) {
1308                                 usage(argv[0]);
1309                                 do_exit++;
1310                         }
1311                         break;
1312                 case 'c':
1313                         if (!cur_client) {
1314                                 fio_show_option_help(optarg);
1315                                 do_exit++;
1316                         }
1317                         break;
1318                 case 's':
1319                         dump_cmdline = 1;
1320                         break;
1321                 case 'r':
1322                         read_only = 1;
1323                         break;
1324                 case 'v':
1325                         if (!cur_client) {
1326                                 log_info("fio %s\n", fio_version_string);
1327                                 do_exit++;
1328                         }
1329                         break;
1330                 case 'V':
1331                         terse_version = atoi(optarg);
1332                         if (terse_version != 2) {
1333                                 log_err("fio: bad terse version format\n");
1334                                 exit_val = 1;
1335                                 do_exit++;
1336                         }
1337                         break;
1338                 case 'e':
1339                         if (!strcmp("always", optarg))
1340                                 eta_print = FIO_ETA_ALWAYS;
1341                         else if (!strcmp("never", optarg))
1342                                 eta_print = FIO_ETA_NEVER;
1343                         break;
1344                 case 'd':
1345                         if (set_debug(optarg))
1346                                 do_exit++;
1347                         break;
1348                 case 'x': {
1349                         size_t new_size;
1350
1351                         if (!strcmp(optarg, "global")) {
1352                                 log_err("fio: can't use global as only "
1353                                         "section\n");
1354                                 do_exit++;
1355                                 exit_val = 1;
1356                                 break;
1357                         }
1358                         new_size = (nr_job_sections + 1) * sizeof(char *);
1359                         job_sections = realloc(job_sections, new_size);
1360                         job_sections[nr_job_sections] = strdup(optarg);
1361                         nr_job_sections++;
1362                         break;
1363                         }
1364                 case 'p':
1365                         exec_profile = strdup(optarg);
1366                         break;
1367                 case FIO_GETOPT_JOB: {
1368                         const char *opt = l_opts[lidx].name;
1369                         char *val = optarg;
1370
1371                         if (!strncmp(opt, "name", 4) && td) {
1372                                 ret = add_job(td, td->o.name ?: "fio", 0);
1373                                 if (ret)
1374                                         return 0;
1375                                 td = NULL;
1376                         }
1377                         if (!td) {
1378                                 int is_section = !strncmp(opt, "name", 4);
1379                                 int global = 0;
1380
1381                                 if (!is_section || !strncmp(val, "global", 6))
1382                                         global = 1;
1383
1384                                 if (is_section && skip_this_section(val))
1385                                         continue;
1386
1387                                 td = get_new_job(global, &def_thread);
1388                                 if (!td)
1389                                         return 0;
1390                         }
1391
1392                         ret = fio_cmd_option_parse(td, opt, val);
1393                         break;
1394                 }
1395                 case 'w':
1396                         warnings_fatal = 1;
1397                         break;
1398                 case 'j':
1399                         max_jobs = atoi(optarg);
1400                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1401                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
1402                                 do_exit++;
1403                                 exit_val = 1;
1404                         }
1405                         break;
1406                 case 'S':
1407                         if (nr_clients) {
1408                                 log_err("fio: can't be both client and server\n");
1409                                 do_exit++;
1410                                 exit_val = 1;
1411                                 break;
1412                         }
1413                         is_backend = 1;
1414                         backend = 1;
1415                         break;
1416                 case 'D':
1417                         daemonize_server = 1;
1418                         break;
1419                 case 'P':
1420                         fio_net_port = atoi(optarg);
1421                         break;
1422                 case 'C':
1423                         if (is_backend) {
1424                                 log_err("fio: can't be both client and server\n");
1425                                 do_exit++;
1426                                 exit_val = 1;
1427                                 break;
1428                         }
1429                         fio_client_add(optarg);
1430                         cur_client = optarg;
1431                         break;
1432                 default:
1433                         do_exit++;
1434                         exit_val = 1;
1435                         break;
1436                 }
1437                 if (do_exit)
1438                         break;
1439         }
1440
1441         if (do_exit) {
1442                 if (exit_val && !(is_backend || nr_clients))
1443                         exit(exit_val);
1444         }
1445
1446         if (nr_clients && fio_clients_connect()) {
1447                 do_exit++;
1448                 exit_val = 1;
1449                 return -1;
1450         }
1451
1452         if (is_backend && backend)
1453                 return fio_start_server(daemonize_server);
1454
1455         if (td) {
1456                 if (!ret)
1457                         ret = add_job(td, td->o.name ?: "fio", 0);
1458         }
1459
1460         while (!ret && optind < argc) {
1461                 ini_idx++;
1462                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1463                 ini_file[ini_idx - 1] = strdup(argv[optind]);
1464                 optind++;
1465         }
1466
1467         return ini_idx;
1468 }
1469
1470 int parse_options(int argc, char *argv[])
1471 {
1472         int job_files, i;
1473
1474         f_out = stdout;
1475         f_err = stderr;
1476
1477         fio_options_fill_optstring();
1478         fio_options_dup_and_init(l_opts);
1479
1480         atexit(free_shm);
1481
1482         if (fill_def_thread())
1483                 return 1;
1484
1485         job_files = parse_cmd_line(argc, argv);
1486
1487         if (job_files > 0) {
1488                 for (i = 0; i < job_files; i++) {
1489                         if (fill_def_thread())
1490                                 return 1;
1491                         if (nr_clients) {
1492                                 if (fio_clients_send_ini(ini_file[i]))
1493                                         return 1;
1494                                 free(ini_file[i]);
1495                         } else if (!is_backend) {
1496                                 if (parse_jobs_ini(ini_file[i], 0, i))
1497                                         return 1;
1498                                 free(ini_file[i]);
1499                         }
1500                 }
1501         }
1502
1503         free(ini_file);
1504         options_mem_free(&def_thread);
1505
1506         if (!thread_number) {
1507                 if (dump_cmdline)
1508                         return 0;
1509                 if (exec_profile)
1510                         return 0;
1511                 if (is_backend || nr_clients)
1512                         return 0;
1513                 if (did_arg)
1514                         return 0;
1515
1516                 log_err("No jobs(s) defined\n\n");
1517
1518                 if (!did_arg) {
1519                         usage(argv[0]);
1520                         return 1;
1521                 }
1522
1523                 return 0;
1524         }
1525
1526         if (def_thread.o.gtod_offload) {
1527                 fio_gtod_init();
1528                 fio_gtod_offload = 1;
1529                 fio_gtod_cpu = def_thread.o.gtod_cpu;
1530         }
1531
1532         log_info("fio %s\n", fio_version_string);
1533         return 0;
1534 }