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 #include "steadystate.h"
  29
  30 #include "oslib/getopt.h"
  31 #include "oslib/strcasestr.h"
  32
  33 #include "crc/test.h"
  34 #include "lib/pow2.h"
  35
  36 const char fio_version_string[] = FIO_VERSION;
  37
  38 #define FIO_RANDSEED            (0xb1899bedUL)
  39
  40 static char **ini_file;
  41 static int max_jobs = FIO_MAX_JOBS;
  42 static int dump_cmdline;
  43 static int parse_only;
  44
  45 static struct thread_data def_thread;
  46 struct thread_data *threads = NULL;
  47 static char **job_sections;
  48 static int nr_job_sections;
  49
  50 int exitall_on_terminate = 0;
  51 int output_format = FIO_OUTPUT_NORMAL;
  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 char *trigger_file = NULL;
  68 long long trigger_timeout = 0;
  69 char *trigger_cmd = NULL;
  70 char *trigger_remote_cmd = NULL;
  71
  72 char *aux_path = NULL;
  73
  74 static int prev_group_jobs;
  75
  76 unsigned long fio_debug = 0;
  77 unsigned int fio_debug_jobno = -1;
  78 unsigned int *fio_debug_jobp = NULL;
  79
  80 static char cmd_optstr[256];
  81 static int did_arg;
  82
  83 #define FIO_CLIENT_FLAG         (1 << 16)
  84
  85 /*
  86  * Command line options. These will contain the above, plus a few
  87  * extra that only pertain to fio itself and not jobs.
  88  */
  89 static struct option l_opts[FIO_NR_OPTIONS] = {
  90         {
  91                 .name           = (char *) "output",
  92                 .has_arg        = required_argument,
  93                 .val            = 'o' | 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        = no_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        = required_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 #ifdef CONFIG_ZLIB
 176         {
 177                 .name           = (char *) "inflate-log",
 178                 .has_arg        = required_argument,
 179                 .val            = 'X' | FIO_CLIENT_FLAG,
 180         },
 181 #endif
 182         {
 183                 .name           = (char *) "alloc-size",
 184                 .has_arg        = required_argument,
 185                 .val            = 'a' | FIO_CLIENT_FLAG,
 186         },
 187         {
 188                 .name           = (char *) "profile",
 189                 .has_arg        = required_argument,
 190                 .val            = 'p' | FIO_CLIENT_FLAG,
 191         },
 192         {
 193                 .name           = (char *) "warnings-fatal",
 194                 .has_arg        = no_argument,
 195                 .val            = 'w' | FIO_CLIENT_FLAG,
 196         },
 197         {
 198                 .name           = (char *) "max-jobs",
 199                 .has_arg        = required_argument,
 200                 .val            = 'j' | FIO_CLIENT_FLAG,
 201         },
 202         {
 203                 .name           = (char *) "terse-version",
 204                 .has_arg        = required_argument,
 205                 .val            = 'V' | FIO_CLIENT_FLAG,
 206         },
 207         {
 208                 .name           = (char *) "server",
 209                 .has_arg        = optional_argument,
 210                 .val            = 'S',
 211         },
 212         {       .name           = (char *) "daemonize",
 213                 .has_arg        = required_argument,
 214                 .val            = 'D',
 215         },
 216         {
 217                 .name           = (char *) "client",
 218                 .has_arg        = required_argument,
 219                 .val            = 'C',
 220         },
 221         {
 222                 .name           = (char *) "remote-config",
 223                 .has_arg        = required_argument,
 224                 .val            = 'R',
 225         },
 226         {
 227                 .name           = (char *) "cpuclock-test",
 228                 .has_arg        = no_argument,
 229                 .val            = 'T',
 230         },
 231         {
 232                 .name           = (char *) "crctest",
 233                 .has_arg        = optional_argument,
 234                 .val            = 'G',
 235         },
 236         {
 237                 .name           = (char *) "idle-prof",
 238                 .has_arg        = required_argument,
 239                 .val            = 'I',
 240         },
 241         {
 242                 .name           = (char *) "status-interval",
 243                 .has_arg        = required_argument,
 244                 .val            = 'L',
 245         },
 246         {
 247                 .name           = (char *) "trigger-file",
 248                 .has_arg        = required_argument,
 249                 .val            = 'W',
 250         },
 251         {
 252                 .name           = (char *) "trigger-timeout",
 253                 .has_arg        = required_argument,
 254                 .val            = 'B',
 255         },
 256         {
 257                 .name           = (char *) "trigger",
 258                 .has_arg        = required_argument,
 259                 .val            = 'H',
 260         },
 261         {
 262                 .name           = (char *) "trigger-remote",
 263                 .has_arg        = required_argument,
 264                 .val            = 'J',
 265         },
 266         {
 267                 .name           = (char *) "aux-path",
 268                 .has_arg        = required_argument,
 269                 .val            = 'K',
 270         },
 271         {
 272                 .name           = NULL,
 273         },
 274 };
 275
 276 void free_threads_shm(void)
 277 {
 278         if (threads) {
 279                 void *tp = threads;
 280 #ifndef CONFIG_NO_SHM
 281                 struct shmid_ds sbuf;
 282
 283                 threads = NULL;
 284                 shmdt(tp);
 285                 shmctl(shm_id, IPC_RMID, &sbuf);
 286                 shm_id = -1;
 287 #else
 288                 threads = NULL;
 289                 free(tp);
 290 #endif
 291         }
 292 }
 293
 294 static void free_shm(void)
 295 {
 296         if (threads) {
 297                 flow_exit();
 298                 fio_debug_jobp = NULL;
 299                 free_threads_shm();
 300         }
 301
 302         free(trigger_file);
 303         free(trigger_cmd);
 304         free(trigger_remote_cmd);
 305         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 306
 307         options_free(fio_options, &def_thread.o);
 308         fio_filelock_exit();
 309         file_hash_exit();
 310         scleanup();
 311 }
 312
 313 /*
 314  * The thread area is shared between the main process and the job
 315  * threads/processes. So setup a shared memory segment that will hold
 316  * all the job info. We use the end of the region for keeping track of
 317  * open files across jobs, for file sharing.
 318  */
 319 static int setup_thread_area(void)
 320 {
 321         if (threads)
 322                 return 0;
 323
 324         /*
 325          * 1024 is too much on some machines, scale max_jobs if
 326          * we get a failure that looks like too large a shm segment
 327          */
 328         do {
 329                 size_t size = max_jobs * sizeof(struct thread_data);
 330
 331                 size += sizeof(unsigned int);
 332
 333 #ifndef CONFIG_NO_SHM
 334                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 335                 if (shm_id != -1)
 336                         break;
 337                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 338                         perror("shmget");
 339                         break;
 340                 }
 341 #else
 342                 threads = malloc(size);
 343                 if (threads)
 344                         break;
 345 #endif
 346
 347                 max_jobs >>= 1;
 348         } while (max_jobs);
 349
 350 #ifndef CONFIG_NO_SHM
 351         if (shm_id == -1)
 352                 return 1;
 353
 354         threads = shmat(shm_id, NULL, 0);
 355         if (threads == (void *) -1) {
 356                 perror("shmat");
 357                 return 1;
 358         }
 359         if (shm_attach_to_open_removed())
 360                 shmctl(shm_id, IPC_RMID, NULL);
 361 #endif
 362
 363         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 364         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 365         *fio_debug_jobp = -1;
 366
 367         flow_init();
 368
 369         return 0;
 370 }
 371
 372 static void dump_print_option(struct print_option *p)
 373 {
 374         const char *delim;
 375
 376         if (!strcmp("description", p->name))
 377                 delim = "\"";
 378         else
 379                 delim = "";
 380
 381         log_info("--%s%s", p->name, p->value ? "" : " ");
 382         if (p->value)
 383                 log_info("=%s%s%s ", delim, p->value, delim);
 384 }
 385
 386 static void dump_opt_list(struct thread_data *td)
 387 {
 388         struct flist_head *entry;
 389         struct print_option *p;
 390
 391         if (flist_empty(&td->opt_list))
 392                 return;
 393
 394         flist_for_each(entry, &td->opt_list) {
 395                 p = flist_entry(entry, struct print_option, list);
 396                 dump_print_option(p);
 397         }
 398 }
 399
 400 static void fio_dump_options_free(struct thread_data *td)
 401 {
 402         while (!flist_empty(&td->opt_list)) {
 403                 struct print_option *p;
 404
 405                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 406                 flist_del_init(&p->list);
 407                 free(p->name);
 408                 free(p->value);
 409                 free(p);
 410         }
 411 }
 412
 413 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 414 {
 415         struct flist_head *entry;
 416
 417         if (flist_empty(&src->opt_list))
 418                 return;
 419
 420         flist_for_each(entry, &src->opt_list) {
 421                 struct print_option *srcp, *dstp;
 422
 423                 srcp = flist_entry(entry, struct print_option, list);
 424                 dstp = malloc(sizeof(*dstp));
 425                 dstp->name = strdup(srcp->name);
 426                 if (srcp->value)
 427                         dstp->value = strdup(srcp->value);
 428                 else
 429                         dstp->value = NULL;
 430                 flist_add_tail(&dstp->list, &dst->opt_list);
 431         }
 432 }
 433
 434 /*
 435  * Return a free job structure.
 436  */
 437 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 438                                        bool preserve_eo, const char *jobname)
 439 {
 440         struct thread_data *td;
 441
 442         if (global)
 443                 return &def_thread;
 444         if (setup_thread_area()) {
 445                 log_err("error: failed to setup shm segment\n");
 446                 return NULL;
 447         }
 448         if (thread_number >= max_jobs) {
 449                 log_err("error: maximum number of jobs (%d) reached.\n",
 450                                 max_jobs);
 451                 return NULL;
 452         }
 453
 454         td = &threads[thread_number++];
 455         *td = *parent;
 456
 457         INIT_FLIST_HEAD(&td->opt_list);
 458         if (parent != &def_thread)
 459                 copy_opt_list(td, parent);
 460
 461         td->io_ops = NULL;
 462         td->io_ops_init = 0;
 463         if (!preserve_eo)
 464                 td->eo = NULL;
 465
 466         td->o.uid = td->o.gid = -1U;
 467
 468         dup_files(td, parent);
 469         fio_options_mem_dupe(td);
 470
 471         profile_add_hooks(td);
 472
 473         td->thread_number = thread_number;
 474         td->subjob_number = 0;
 475
 476         if (jobname)
 477                 td->o.name = strdup(jobname);
 478
 479         if (!parent->o.group_reporting || parent == &def_thread)
 480                 stat_number++;
 481
 482         return td;
 483 }
 484
 485 static void put_job(struct thread_data *td)
 486 {
 487         if (td == &def_thread)
 488                 return;
 489
 490         profile_td_exit(td);
 491         flow_exit_job(td);
 492
 493         if (td->error)
 494                 log_info("fio: %s\n", td->verror);
 495
 496         fio_options_free(td);
 497         fio_dump_options_free(td);
 498         if (td->io_ops)
 499                 free_ioengine(td);
 500
 501         if (td->o.name)
 502                 free(td->o.name);
 503
 504         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 505         thread_number--;
 506 }
 507
 508 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 509 {
 510         unsigned int bs = td->o.min_bs[ddir];
 511
 512         assert(ddir_rw(ddir));
 513
 514         if (td->o.rate[ddir])
 515                 td->rate_bps[ddir] = td->o.rate[ddir];
 516         else
 517                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 518
 519         if (!td->rate_bps[ddir]) {
 520                 log_err("rate lower than supported\n");
 521                 return -1;
 522         }
 523
 524         td->rate_next_io_time[ddir] = 0;
 525         td->rate_io_issue_bytes[ddir] = 0;
 526         td->last_usec[ddir] = 0;
 527         return 0;
 528 }
 529
 530 static int setup_rate(struct thread_data *td)
 531 {
 532         int ret = 0;
 533
 534         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 535                 ret = __setup_rate(td, DDIR_READ);
 536         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 537                 ret |= __setup_rate(td, DDIR_WRITE);
 538         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 539                 ret |= __setup_rate(td, DDIR_TRIM);
 540
 541         return ret;
 542 }
 543
 544 static int fixed_block_size(struct thread_options *o)
 545 {
 546         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 547                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 548                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 549                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 550                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 551 }
 552
 553
 554 static unsigned long long get_rand_start_delay(struct thread_data *td)
 555 {
 556         unsigned long long delayrange;
 557         uint64_t frand_max;
 558         unsigned long r;
 559
 560         delayrange = td->o.start_delay_high - td->o.start_delay;
 561
 562         frand_max = rand_max(&td->delay_state);
 563         r = __rand(&td->delay_state);
 564         delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
 565
 566         delayrange += td->o.start_delay;
 567         return delayrange;
 568 }
 569
 570 /*
 571  * <3 Johannes
 572  */
 573 static unsigned int gcd(unsigned int m, unsigned int n)
 574 {
 575         if (!n)
 576                 return m;
 577
 578         return gcd(n, m % n);
 579 }
 580
 581 /*
 582  * Lazy way of fixing up options that depend on each other. We could also
 583  * define option callback handlers, but this is easier.
 584  */
 585 static int fixup_options(struct thread_data *td)
 586 {
 587         struct thread_options *o = &td->o;
 588         int ret = 0;
 589
 590 #ifndef CONFIG_PSHARED
 591         if (!o->use_thread) {
 592                 log_info("fio: this platform does not support process shared"
 593                          " mutexes, forcing use of threads. Use the 'thread'"
 594                          " option to get rid of this warning.\n");
 595                 o->use_thread = 1;
 596                 ret = warnings_fatal;
 597         }
 598 #endif
 599
 600         if (o->write_iolog_file && o->read_iolog_file) {
 601                 log_err("fio: read iolog overrides write_iolog\n");
 602                 free(o->write_iolog_file);
 603                 o->write_iolog_file = NULL;
 604                 ret = warnings_fatal;
 605         }
 606
 607         /*
 608          * only really works with 1 file
 609          */
 610         if (o->zone_size && o->open_files > 1)
 611                 o->zone_size = 0;
 612
 613         /*
 614          * If zone_range isn't specified, backward compatibility dictates it
 615          * should be made equal to zone_size.
 616          */
 617         if (o->zone_size && !o->zone_range)
 618                 o->zone_range = o->zone_size;
 619
 620         /*
 621          * Reads can do overwrites, we always need to pre-create the file
 622          */
 623         if (td_read(td))
 624                 o->overwrite = 1;
 625
 626         if (!o->min_bs[DDIR_READ])
 627                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 628         if (!o->max_bs[DDIR_READ])
 629                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 630         if (!o->min_bs[DDIR_WRITE])
 631                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 632         if (!o->max_bs[DDIR_WRITE])
 633                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 634         if (!o->min_bs[DDIR_TRIM])
 635                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 636         if (!o->max_bs[DDIR_TRIM])
 637                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 638
 639         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 640         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 641
 642         /*
 643          * For random IO, allow blockalign offset other than min_bs.
 644          */
 645         if (!o->ba[DDIR_READ] || !td_random(td))
 646                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 647         if (!o->ba[DDIR_WRITE] || !td_random(td))
 648                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 649         if (!o->ba[DDIR_TRIM] || !td_random(td))
 650                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 651
 652         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 653             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 654             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 655             !o->norandommap) {
 656                 log_err("fio: Any use of blockalign= turns off randommap\n");
 657                 o->norandommap = 1;
 658                 ret = warnings_fatal;
 659         }
 660
 661         if (!o->file_size_high)
 662                 o->file_size_high = o->file_size_low;
 663
 664         if (o->start_delay_high)
 665                 o->start_delay = get_rand_start_delay(td);
 666
 667         if (o->norandommap && o->verify != VERIFY_NONE
 668             && !fixed_block_size(o))  {
 669                 log_err("fio: norandommap given for variable block sizes, "
 670                         "verify limited\n");
 671                 ret = warnings_fatal;
 672         }
 673         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 674                 log_err("fio: bs_unaligned may not work with raw io\n");
 675
 676         /*
 677          * thinktime_spin must be less than thinktime
 678          */
 679         if (o->thinktime_spin > o->thinktime)
 680                 o->thinktime_spin = o->thinktime;
 681
 682         /*
 683          * The low water mark cannot be bigger than the iodepth
 684          */
 685         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 686                 o->iodepth_low = o->iodepth;
 687
 688         /*
 689          * If batch number isn't set, default to the same as iodepth
 690          */
 691         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 692                 o->iodepth_batch = o->iodepth;
 693
 694         /*
 695          * If max batch complete number isn't set or set incorrectly,
 696          * default to the same as iodepth_batch_complete_min
 697          */
 698         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 699                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 700
 701         if (o->nr_files > td->files_index)
 702                 o->nr_files = td->files_index;
 703
 704         if (o->open_files > o->nr_files || !o->open_files)
 705                 o->open_files = o->nr_files;
 706
 707         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 708             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 709             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 710             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 711                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 712                 ret = 1;
 713         }
 714         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 715             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 716             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 717             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 718             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 719             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 720                 log_err("fio: minimum rate exceeds rate\n");
 721                 ret = 1;
 722         }
 723
 724         if (!o->timeout && o->time_based) {
 725                 log_err("fio: time_based requires a runtime/timeout setting\n");
 726                 o->time_based = 0;
 727                 ret = warnings_fatal;
 728         }
 729
 730         if (o->fill_device && !o->size)
 731                 o->size = -1ULL;
 732
 733         if (o->verify != VERIFY_NONE) {
 734                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 735                         log_info("Multiple writers may overwrite blocks that "
 736                                 "belong to other jobs. This can cause "
 737                                 "verification failures.\n");
 738                         ret = warnings_fatal;
 739                 }
 740
 741                 if (!fio_option_is_set(o, refill_buffers))
 742                         o->refill_buffers = 1;
 743
 744                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 745                     !o->verify_interval)
 746                         o->verify_interval = o->min_bs[DDIR_WRITE];
 747
 748                 /*
 749                  * Verify interval must be smaller or equal to the
 750                  * write size.
 751                  */
 752                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 753                         o->verify_interval = o->min_bs[DDIR_WRITE];
 754                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 755                         o->verify_interval = o->min_bs[DDIR_READ];
 756
 757                 /*
 758                  * Verify interval must be a factor or both min and max
 759                  * write size
 760                  */
 761                 if (o->verify_interval % o->min_bs[DDIR_WRITE] ||
 762                     o->verify_interval % o->max_bs[DDIR_WRITE])
 763                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 764                                                         o->max_bs[DDIR_WRITE]);
 765         }
 766
 767         if (o->pre_read) {
 768                 if (o->invalidate_cache)
 769                         o->invalidate_cache = 0;
 770                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 771                         log_info("fio: cannot pre-read files with an IO engine"
 772                                  " that isn't seekable. Pre-read disabled.\n");
 773                         ret = warnings_fatal;
 774                 }
 775         }
 776
 777         if (!o->unit_base) {
 778                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 779                         o->unit_base = 1;
 780                 else
 781                         o->unit_base = 8;
 782         }
 783
 784 #ifndef CONFIG_FDATASYNC
 785         if (o->fdatasync_blocks) {
 786                 log_info("fio: this platform does not support fdatasync()"
 787                          " falling back to using fsync().  Use the 'fsync'"
 788                          " option instead of 'fdatasync' to get rid of"
 789                          " this warning\n");
 790                 o->fsync_blocks = o->fdatasync_blocks;
 791                 o->fdatasync_blocks = 0;
 792                 ret = warnings_fatal;
 793         }
 794 #endif
 795
 796 #ifdef WIN32
 797         /*
 798          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 799          * so fail if we're passed those flags
 800          */
 801         if (td_ioengine_flagged(td, FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 802                 log_err("fio: Windows does not support direct or non-buffered io with"
 803                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 804                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 805                 ret = 1;
 806         }
 807 #endif
 808
 809         /*
 810          * For fully compressible data, just zero them at init time.
 811          * It's faster than repeatedly filling it. For non-zero
 812          * compression, we should have refill_buffers set. Set it, unless
 813          * the job file already changed it.
 814          */
 815         if (o->compress_percentage) {
 816                 if (o->compress_percentage == 100) {
 817                         o->zero_buffers = 1;
 818                         o->compress_percentage = 0;
 819                 } else if (!fio_option_is_set(o, refill_buffers))
 820                         o->refill_buffers = 1;
 821         }
 822
 823         /*
 824          * Using a non-uniform random distribution excludes usage of
 825          * a random map
 826          */
 827         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 828                 td->o.norandommap = 1;
 829
 830         /*
 831          * If size is set but less than the min block size, complain
 832          */
 833         if (o->size && o->size < td_min_bs(td)) {
 834                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 835                         (unsigned long long) o->size, td_min_bs(td));
 836                 ret = 1;
 837         }
 838
 839         /*
 840          * O_ATOMIC implies O_DIRECT
 841          */
 842         if (td->o.oatomic)
 843                 td->o.odirect = 1;
 844
 845         /*
 846          * If randseed is set, that overrides randrepeat
 847          */
 848         if (fio_option_is_set(&td->o, rand_seed))
 849                 td->o.rand_repeatable = 0;
 850
 851         if (td_ioengine_flagged(td, FIO_NOEXTEND) && td->o.file_append) {
 852                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 853                 ret = 1;
 854         }
 855
 856         if (fio_option_is_set(o, gtod_cpu)) {
 857                 fio_gtod_init();
 858                 fio_gtod_set_cpu(o->gtod_cpu);
 859                 fio_gtod_offload = 1;
 860         }
 861
 862         td->loops = o->loops;
 863         if (!td->loops)
 864                 td->loops = 1;
 865
 866         if (td->o.block_error_hist && td->o.nr_files != 1) {
 867                 log_err("fio: block error histogram only available "
 868                         "with a single file per job, but %d files "
 869                         "provided\n", td->o.nr_files);
 870                 ret = 1;
 871         }
 872
 873         return ret;
 874 }
 875
 876 /* External engines are specified by "external:name.o") */
 877 static const char *get_engine_name(const char *str)
 878 {
 879         char *p = strstr(str, ":");
 880
 881         if (!p)
 882                 return str;
 883
 884         p++;
 885         strip_blank_front(&p);
 886         strip_blank_end(p);
 887         return p;
 888 }
 889
 890 static void init_rand_file_service(struct thread_data *td)
 891 {
 892         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 893         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 894
 895         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 896                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 897                 zipf_disable_hash(&td->next_file_zipf);
 898         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 899                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 900                 zipf_disable_hash(&td->next_file_zipf);
 901         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 902                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 903                 gauss_disable_hash(&td->next_file_gauss);
 904         }
 905 }
 906
 907 void td_fill_verify_state_seed(struct thread_data *td)
 908 {
 909         bool use64;
 910
 911         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 912                 use64 = true;
 913         else
 914                 use64 = false;
 915
 916         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 917                 use64);
 918 }
 919
 920 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 921 {
 922         int i;
 923
 924         /*
 925          * trimwrite is special in that we need to generate the same
 926          * offsets to get the "write after trim" effect. If we are
 927          * using bssplit to set buffer length distributions, ensure that
 928          * we seed the trim and write generators identically.
 929          */
 930         if (td_trimwrite(td)) {
 931                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 932                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 933                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 934         } else {
 935                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 936                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 937                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
 938         }
 939
 940         td_fill_verify_state_seed(td);
 941         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
 942
 943         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 944                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
 945         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
 946                 init_rand_file_service(td);
 947
 948         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
 949         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
 950         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
 951         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
 952         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
 953         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
 954         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
 955         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
 956
 957         if (!td_random(td))
 958                 return;
 959
 960         if (td->o.rand_repeatable)
 961                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 962
 963         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
 964
 965         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 966                 struct frand_state *s = &td->seq_rand_state[i];
 967
 968                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
 969         }
 970 }
 971
 972 void td_fill_rand_seeds(struct thread_data *td)
 973 {
 974         bool use64;
 975
 976         if (td->o.allrand_repeatable) {
 977                 unsigned int i;
 978
 979                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
 980                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 981                                 + i;
 982         }
 983
 984         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 985                 use64 = true;
 986         else
 987                 use64 = false;
 988
 989         td_fill_rand_seeds_internal(td, use64);
 990
 991         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
 992         frand_copy(&td->buf_state_prev, &td->buf_state);
 993 }
 994
 995 /*
 996  * Initializes the ioengine configured for a job, if it has not been done so
 997  * already.
 998  */
 999 int ioengine_load(struct thread_data *td)
1000 {
1001         const char *engine;
1002
1003         if (!td->o.ioengine) {
1004                 log_err("fio: internal fault, no IO engine specified\n");
1005                 return 1;
1006         }
1007
1008         if (td->io_ops) {
1009                 /* An engine is loaded, but the requested ioengine
1010                  * may have changed.
1011                  */
1012                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1013                         /* The right engine is already loaded */
1014                         return 0;
1015                 }
1016
1017                 /* Unload the old engine. */
1018                 free_ioengine(td);
1019         }
1020
1021         engine = get_engine_name(td->o.ioengine);
1022         td->io_ops = load_ioengine(td, engine);
1023         if (!td->io_ops) {
1024                 log_err("fio: failed to load engine %s\n", engine);
1025                 return 1;
1026         }
1027
1028         if (td->io_ops->option_struct_size && td->io_ops->options) {
1029                 /*
1030                  * In cases where td->eo is set, clone it for a child thread.
1031                  * This requires that the parent thread has the same ioengine,
1032                  * but that requirement must be enforced by the code which
1033                  * cloned the thread.
1034                  */
1035                 void *origeo = td->eo;
1036                 /*
1037                  * Otherwise use the default thread options.
1038                  */
1039                 if (!origeo && td != &def_thread && def_thread.eo &&
1040                     def_thread.io_ops->options == td->io_ops->options)
1041                         origeo = def_thread.eo;
1042
1043                 options_init(td->io_ops->options);
1044                 td->eo = malloc(td->io_ops->option_struct_size);
1045                 /*
1046                  * Use the default thread as an option template if this uses the
1047                  * same options structure and there are non-default options
1048                  * used.
1049                  */
1050                 if (origeo) {
1051                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1052                         options_mem_dupe(td->io_ops->options, td->eo);
1053                 } else {
1054                         memset(td->eo, 0, td->io_ops->option_struct_size);
1055                         fill_default_options(td->eo, td->io_ops->options);
1056                 }
1057                 *(struct thread_data **)td->eo = td;
1058         }
1059
1060         if (td->o.odirect)
1061                 td->io_ops->flags |= FIO_RAWIO;
1062
1063         td_set_ioengine_flags(td);
1064         return 0;
1065 }
1066
1067 static void init_flags(struct thread_data *td)
1068 {
1069         struct thread_options *o = &td->o;
1070
1071         if (o->verify_backlog)
1072                 td->flags |= TD_F_VER_BACKLOG;
1073         if (o->trim_backlog)
1074                 td->flags |= TD_F_TRIM_BACKLOG;
1075         if (o->read_iolog_file)
1076                 td->flags |= TD_F_READ_IOLOG;
1077         if (o->refill_buffers)
1078                 td->flags |= TD_F_REFILL_BUFFERS;
1079         /*
1080          * Always scramble buffers if asked to
1081          */
1082         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1083                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1084         /*
1085          * But also scramble buffers, unless we were explicitly asked
1086          * to zero them.
1087          */
1088         if (o->scramble_buffers && !(o->zero_buffers &&
1089             fio_option_is_set(o, zero_buffers)))
1090                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1091         if (o->verify != VERIFY_NONE)
1092                 td->flags |= TD_F_VER_NONE;
1093
1094         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1095                 td->flags |= TD_F_NEED_LOCK;
1096
1097         if (o->mem_type == MEM_CUDA_MALLOC)
1098                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1099 }
1100
1101 static int setup_random_seeds(struct thread_data *td)
1102 {
1103         unsigned long seed;
1104         unsigned int i;
1105
1106         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1107                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1108                 if (!ret)
1109                         td_fill_rand_seeds(td);
1110                 return ret;
1111         }
1112
1113         seed = td->o.rand_seed;
1114         for (i = 0; i < 4; i++)
1115                 seed *= 0x9e370001UL;
1116
1117         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1118                 td->rand_seeds[i] = seed * td->thread_number + i;
1119                 seed *= 0x9e370001UL;
1120         }
1121
1122         td_fill_rand_seeds(td);
1123         return 0;
1124 }
1125
1126 enum {
1127         FPRE_NONE = 0,
1128         FPRE_JOBNAME,
1129         FPRE_JOBNUM,
1130         FPRE_FILENUM
1131 };
1132
1133 static struct fpre_keyword {
1134         const char *keyword;
1135         size_t strlen;
1136         int key;
1137 } fpre_keywords[] = {
1138         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1139         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1140         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1141         { .keyword = NULL, },
1142         };
1143
1144 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1145                            const char *jobname, int jobnum, int filenum)
1146 {
1147         struct fpre_keyword *f;
1148         char copy[PATH_MAX];
1149         size_t dst_left = PATH_MAX - 1;
1150
1151         if (!o->filename_format || !strlen(o->filename_format)) {
1152                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1153                 return buf;
1154         }
1155
1156         for (f = &fpre_keywords[0]; f->keyword; f++)
1157                 f->strlen = strlen(f->keyword);
1158
1159         buf[buf_size - 1] = '\0';
1160         strncpy(buf, o->filename_format, buf_size - 1);
1161
1162         memset(copy, 0, sizeof(copy));
1163         for (f = &fpre_keywords[0]; f->keyword; f++) {
1164                 do {
1165                         size_t pre_len, post_start = 0;
1166                         char *str, *dst = copy;
1167
1168                         str = strcasestr(buf, f->keyword);
1169                         if (!str)
1170                                 break;
1171
1172                         pre_len = str - buf;
1173                         if (strlen(str) != f->strlen)
1174                                 post_start = pre_len + f->strlen;
1175
1176                         if (pre_len) {
1177                                 strncpy(dst, buf, pre_len);
1178                                 dst += pre_len;
1179                                 dst_left -= pre_len;
1180                         }
1181
1182                         switch (f->key) {
1183                         case FPRE_JOBNAME: {
1184                                 int ret;
1185
1186                                 ret = snprintf(dst, dst_left, "%s", jobname);
1187                                 if (ret < 0)
1188                                         break;
1189                                 else if (ret > dst_left) {
1190                                         log_err("fio: truncated filename\n");
1191                                         dst += dst_left;
1192                                         dst_left = 0;
1193                                 } else {
1194                                         dst += ret;
1195                                         dst_left -= ret;
1196                                 }
1197                                 break;
1198                                 }
1199                         case FPRE_JOBNUM: {
1200                                 int ret;
1201
1202                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1203                                 if (ret < 0)
1204                                         break;
1205                                 else if (ret > dst_left) {
1206                                         log_err("fio: truncated filename\n");
1207                                         dst += dst_left;
1208                                         dst_left = 0;
1209                                 } else {
1210                                         dst += ret;
1211                                         dst_left -= ret;
1212                                 }
1213                                 break;
1214                                 }
1215                         case FPRE_FILENUM: {
1216                                 int ret;
1217
1218                                 ret = snprintf(dst, dst_left, "%d", filenum);
1219                                 if (ret < 0)
1220                                         break;
1221                                 else if (ret > dst_left) {
1222                                         log_err("fio: truncated filename\n");
1223                                         dst += dst_left;
1224                                         dst_left = 0;
1225                                 } else {
1226                                         dst += ret;
1227                                         dst_left -= ret;
1228                                 }
1229                                 break;
1230                                 }
1231                         default:
1232                                 assert(0);
1233                                 break;
1234                         }
1235
1236                         if (post_start)
1237                                 strncpy(dst, buf + post_start, dst_left);
1238
1239                         strncpy(buf, copy, buf_size - 1);
1240                 } while (1);
1241         }
1242
1243         return buf;
1244 }
1245
1246 bool parse_dryrun(void)
1247 {
1248         return dump_cmdline || parse_only;
1249 }
1250
1251 static void gen_log_name(char *name, size_t size, const char *logtype,
1252                          const char *logname, unsigned int num,
1253                          const char *suf, int per_job)
1254 {
1255         if (per_job)
1256                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1257         else
1258                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1259 }
1260
1261 static int check_waitees(char *waitee)
1262 {
1263         struct thread_data *td;
1264         int i, ret = 0;
1265
1266         for_each_td(td, i) {
1267                 if (td->subjob_number)
1268                         continue;
1269
1270                 ret += !strcmp(td->o.name, waitee);
1271         }
1272
1273         return ret;
1274 }
1275
1276 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1277 {
1278         int nw;
1279
1280         if (!o->wait_for)
1281                 return true;
1282
1283         if (!strcmp(jobname, o->wait_for)) {
1284                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1285                                 jobname, o->wait_for);
1286                 return false;
1287         }
1288
1289         if (!(nw = check_waitees(o->wait_for))) {
1290                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1291                 return false;
1292         }
1293
1294         if (nw > 1) {
1295                 log_err("%s: multiple waitees %s found,\n"
1296                         "please avoid duplicates when using wait_for option.\n",
1297                                 jobname, o->wait_for);
1298                 return false;
1299         }
1300
1301         return true;
1302 }
1303
1304 /*
1305  * Adds a job to the list of things todo. Sanitizes the various options
1306  * to make sure we don't have conflicts, and initializes various
1307  * members of td.
1308  */
1309 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1310                    int recursed, int client_type)
1311 {
1312         unsigned int i;
1313         char fname[PATH_MAX];
1314         int numjobs, file_alloced;
1315         struct thread_options *o = &td->o;
1316         char logname[PATH_MAX + 32];
1317
1318         /*
1319          * the def_thread is just for options, it's not a real job
1320          */
1321         if (td == &def_thread)
1322                 return 0;
1323
1324         init_flags(td);
1325
1326         /*
1327          * if we are just dumping the output command line, don't add the job
1328          */
1329         if (parse_dryrun()) {
1330                 put_job(td);
1331                 return 0;
1332         }
1333
1334         td->client_type = client_type;
1335
1336         if (profile_td_init(td))
1337                 goto err;
1338
1339         if (ioengine_load(td))
1340                 goto err;
1341
1342         file_alloced = 0;
1343         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1344                 file_alloced = 1;
1345
1346                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1347                         add_file(td, jobname, job_add_num, 0);
1348                 else {
1349                         for (i = 0; i < o->nr_files; i++)
1350                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1351                 }
1352         }
1353
1354         if (fixup_options(td))
1355                 goto err;
1356
1357         /*
1358          * Belongs to fixup_options, but o->name is not necessarily set as yet
1359          */
1360         if (!wait_for_ok(jobname, o))
1361                 goto err;
1362
1363         flow_init_job(td);
1364
1365         /*
1366          * IO engines only need this for option callbacks, and the address may
1367          * change in subprocesses.
1368          */
1369         if (td->eo)
1370                 *(struct thread_data **)td->eo = NULL;
1371
1372         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1373                 struct fio_file *f;
1374
1375                 for_each_file(td, f, i)
1376                         f->real_file_size = -1ULL;
1377         }
1378
1379         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1380
1381         td->ts.clat_percentiles = o->clat_percentiles;
1382         td->ts.percentile_precision = o->percentile_precision;
1383         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1384
1385         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1386                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1387                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1388                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1389                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1390                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1391         }
1392         td->ddir_seq_nr = o->ddir_seq_nr;
1393
1394         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1395                 prev_group_jobs = 0;
1396                 groupid++;
1397                 if (groupid == INT_MAX) {
1398                         log_err("fio: too many groups defined\n");
1399                         goto err;
1400                 }
1401         }
1402
1403         td->groupid = groupid;
1404         prev_group_jobs++;
1405
1406         if (setup_random_seeds(td)) {
1407                 td_verror(td, errno, "setup_random_seeds");
1408                 goto err;
1409         }
1410
1411         if (setup_rate(td))
1412                 goto err;
1413
1414         if (o->write_lat_log) {
1415                 struct log_params p = {
1416                         .td = td,
1417                         .avg_msec = o->log_avg_msec,
1418                         .hist_msec = o->log_hist_msec,
1419                         .hist_coarseness = o->log_hist_coarseness,
1420                         .log_type = IO_LOG_TYPE_LAT,
1421                         .log_offset = o->log_offset,
1422                         .log_gz = o->log_gz,
1423                         .log_gz_store = o->log_gz_store,
1424                 };
1425                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1426                 const char *suf;
1427
1428                 if (p.log_gz_store)
1429                         suf = "log.fz";
1430                 else
1431                         suf = "log";
1432
1433                 gen_log_name(logname, sizeof(logname), "lat", pre,
1434                                 td->thread_number, suf, o->per_job_logs);
1435                 setup_log(&td->lat_log, &p, logname);
1436
1437                 gen_log_name(logname, sizeof(logname), "slat", pre,
1438                                 td->thread_number, suf, o->per_job_logs);
1439                 setup_log(&td->slat_log, &p, logname);
1440
1441                 gen_log_name(logname, sizeof(logname), "clat", pre,
1442                                 td->thread_number, suf, o->per_job_logs);
1443                 setup_log(&td->clat_log, &p, logname);
1444         }
1445
1446         if (o->write_hist_log) {
1447                 struct log_params p = {
1448                         .td = td,
1449                         .avg_msec = o->log_avg_msec,
1450                         .hist_msec = o->log_hist_msec,
1451                         .hist_coarseness = o->log_hist_coarseness,
1452                         .log_type = IO_LOG_TYPE_HIST,
1453                         .log_offset = o->log_offset,
1454                         .log_gz = o->log_gz,
1455                         .log_gz_store = o->log_gz_store,
1456                 };
1457                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1458                 const char *suf;
1459
1460 #ifndef CONFIG_ZLIB
1461                 if (td->client_type) {
1462                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1463                         goto err;
1464                 }
1465 #endif
1466
1467                 if (p.log_gz_store)
1468                         suf = "log.fz";
1469                 else
1470                         suf = "log";
1471
1472                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1473                                 td->thread_number, suf, o->per_job_logs);
1474                 setup_log(&td->clat_hist_log, &p, logname);
1475         }
1476
1477         if (o->write_bw_log) {
1478                 struct log_params p = {
1479                         .td = td,
1480                         .avg_msec = o->log_avg_msec,
1481                         .hist_msec = o->log_hist_msec,
1482                         .hist_coarseness = o->log_hist_coarseness,
1483                         .log_type = IO_LOG_TYPE_BW,
1484                         .log_offset = o->log_offset,
1485                         .log_gz = o->log_gz,
1486                         .log_gz_store = o->log_gz_store,
1487                 };
1488                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1489                 const char *suf;
1490
1491                 if (fio_option_is_set(o, bw_avg_time))
1492                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1493                 else
1494                         o->bw_avg_time = p.avg_msec;
1495
1496                 p.hist_msec = o->log_hist_msec;
1497                 p.hist_coarseness = o->log_hist_coarseness;
1498
1499                 if (p.log_gz_store)
1500                         suf = "log.fz";
1501                 else
1502                         suf = "log";
1503
1504                 gen_log_name(logname, sizeof(logname), "bw", pre,
1505                                 td->thread_number, suf, o->per_job_logs);
1506                 setup_log(&td->bw_log, &p, logname);
1507         }
1508         if (o->write_iops_log) {
1509                 struct log_params p = {
1510                         .td = td,
1511                         .avg_msec = o->log_avg_msec,
1512                         .hist_msec = o->log_hist_msec,
1513                         .hist_coarseness = o->log_hist_coarseness,
1514                         .log_type = IO_LOG_TYPE_IOPS,
1515                         .log_offset = o->log_offset,
1516                         .log_gz = o->log_gz,
1517                         .log_gz_store = o->log_gz_store,
1518                 };
1519                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1520                 const char *suf;
1521
1522                 if (fio_option_is_set(o, iops_avg_time))
1523                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1524                 else
1525                         o->iops_avg_time = p.avg_msec;
1526
1527                 p.hist_msec = o->log_hist_msec;
1528                 p.hist_coarseness = o->log_hist_coarseness;
1529
1530                 if (p.log_gz_store)
1531                         suf = "log.fz";
1532                 else
1533                         suf = "log";
1534
1535                 gen_log_name(logname, sizeof(logname), "iops", pre,
1536                                 td->thread_number, suf, o->per_job_logs);
1537                 setup_log(&td->iops_log, &p, logname);
1538         }
1539
1540         if (!o->name)
1541                 o->name = strdup(jobname);
1542
1543         if (output_format & FIO_OUTPUT_NORMAL) {
1544                 if (!job_add_num) {
1545                         if (is_backend && !recursed)
1546                                 fio_server_send_add_job(td);
1547
1548                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1549                                 char *c1, *c2, *c3, *c4;
1550                                 char *c5 = NULL, *c6 = NULL;
1551                                 int i2p = is_power_of_2(o->kb_base);
1552
1553                                 c1 = num2str(o->min_bs[DDIR_READ], 4, 1, i2p, N2S_BYTE);
1554                                 c2 = num2str(o->max_bs[DDIR_READ], 4, 1, i2p, N2S_BYTE);
1555                                 c3 = num2str(o->min_bs[DDIR_WRITE], 4, 1, i2p, N2S_BYTE);
1556                                 c4 = num2str(o->max_bs[DDIR_WRITE], 4, 1, i2p, N2S_BYTE);
1557
1558                                 if (!o->bs_is_seq_rand) {
1559                                         c5 = num2str(o->min_bs[DDIR_TRIM], 4, 1, i2p, N2S_BYTE);
1560                                         c6 = num2str(o->max_bs[DDIR_TRIM], 4, 1, i2p, N2S_BYTE);
1561                                 }
1562
1563                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1564                                                         td->groupid,
1565                                                         ddir_str(o->td_ddir));
1566
1567                                 if (o->bs_is_seq_rand)
1568                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1569                                                         c1, c2, c3, c4);
1570                                 else
1571                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1572                                                         c1, c2, c3, c4, c5, c6);
1573
1574                                 log_info("ioengine=%s, iodepth=%u\n",
1575                                                 td->io_ops->name, o->iodepth);
1576
1577                                 free(c1);
1578                                 free(c2);
1579                                 free(c3);
1580                                 free(c4);
1581                                 free(c5);
1582                                 free(c6);
1583                         }
1584                 } else if (job_add_num == 1)
1585                         log_info("...\n");
1586         }
1587
1588         if (td_steadystate_init(td))
1589                 goto err;
1590
1591         /*
1592          * recurse add identical jobs, clear numjobs and stonewall options
1593          * as they don't apply to sub-jobs
1594          */
1595         numjobs = o->numjobs;
1596         while (--numjobs) {
1597                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1598
1599                 if (!td_new)
1600                         goto err;
1601
1602                 td_new->o.numjobs = 1;
1603                 td_new->o.stonewall = 0;
1604                 td_new->o.new_group = 0;
1605                 td_new->subjob_number = numjobs;
1606                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1607                 td_new->o.ss_limit = o->ss_limit;
1608
1609                 if (file_alloced) {
1610                         if (td_new->files) {
1611                                 struct fio_file *f;
1612                                 for_each_file(td_new, f, i) {
1613                                         if (f->file_name)
1614                                                 sfree(f->file_name);
1615                                         sfree(f);
1616                                 }
1617                                 free(td_new->files);
1618                                 td_new->files = NULL;
1619                         }
1620                         td_new->files_index = 0;
1621                         td_new->files_size = 0;
1622                         if (td_new->o.filename) {
1623                                 free(td_new->o.filename);
1624                                 td_new->o.filename = NULL;
1625                         }
1626                 }
1627
1628                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1629                         goto err;
1630         }
1631
1632         return 0;
1633 err:
1634         put_job(td);
1635         return -1;
1636 }
1637
1638 /*
1639  * Parse as if 'o' was a command line
1640  */
1641 void add_job_opts(const char **o, int client_type)
1642 {
1643         struct thread_data *td, *td_parent;
1644         int i, in_global = 1;
1645         char jobname[32];
1646
1647         i = 0;
1648         td_parent = td = NULL;
1649         while (o[i]) {
1650                 if (!strncmp(o[i], "name", 4)) {
1651                         in_global = 0;
1652                         if (td)
1653                                 add_job(td, jobname, 0, 0, client_type);
1654                         td = NULL;
1655                         sprintf(jobname, "%s", o[i] + 5);
1656                 }
1657                 if (in_global && !td_parent)
1658                         td_parent = get_new_job(true, &def_thread, false, jobname);
1659                 else if (!in_global && !td) {
1660                         if (!td_parent)
1661                                 td_parent = &def_thread;
1662                         td = get_new_job(false, td_parent, false, jobname);
1663                 }
1664                 if (in_global)
1665                         fio_options_parse(td_parent, (char **) &o[i], 1);
1666                 else
1667                         fio_options_parse(td, (char **) &o[i], 1);
1668                 i++;
1669         }
1670
1671         if (td)
1672                 add_job(td, jobname, 0, 0, client_type);
1673 }
1674
1675 static int skip_this_section(const char *name)
1676 {
1677         int i;
1678
1679         if (!nr_job_sections)
1680                 return 0;
1681         if (!strncmp(name, "global", 6))
1682                 return 0;
1683
1684         for (i = 0; i < nr_job_sections; i++)
1685                 if (!strcmp(job_sections[i], name))
1686                         return 0;
1687
1688         return 1;
1689 }
1690
1691 static int is_empty_or_comment(char *line)
1692 {
1693         unsigned int i;
1694
1695         for (i = 0; i < strlen(line); i++) {
1696                 if (line[i] == ';')
1697                         return 1;
1698                 if (line[i] == '#')
1699                         return 1;
1700                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1701                         return 0;
1702         }
1703
1704         return 1;
1705 }
1706
1707 /*
1708  * This is our [ini] type file parser.
1709  */
1710 static int __parse_jobs_ini(struct thread_data *td,
1711                 char *file, int is_buf, int stonewall_flag, int type,
1712                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1713 {
1714         bool global = false;
1715         char *string;
1716         FILE *f;
1717         char *p;
1718         int ret = 0, stonewall;
1719         int first_sect = 1;
1720         int skip_fgets = 0;
1721         int inside_skip = 0;
1722         char **opts;
1723         int i, alloc_opts, num_opts;
1724
1725         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1726         assert(td || !nested);
1727
1728         if (is_buf)
1729                 f = NULL;
1730         else {
1731                 if (!strcmp(file, "-"))
1732                         f = stdin;
1733                 else
1734                         f = fopen(file, "r");
1735
1736                 if (!f) {
1737                         int __err = errno;
1738
1739                         log_err("fio: unable to open '%s' job file\n", file);
1740                         if (td)
1741                                 td_verror(td, __err, "job file open");
1742                         return 1;
1743                 }
1744         }
1745
1746         string = malloc(4096);
1747
1748         /*
1749          * it's really 256 + small bit, 280 should suffice
1750          */
1751         if (!nested) {
1752                 name = malloc(280);
1753                 memset(name, 0, 280);
1754         }
1755
1756         opts = NULL;
1757         if (nested && popts) {
1758                 opts = *popts;
1759                 alloc_opts = *aopts;
1760                 num_opts = *nopts;
1761         }
1762
1763         if (!opts) {
1764                 alloc_opts = 8;
1765                 opts = malloc(sizeof(char *) * alloc_opts);
1766                 num_opts = 0;
1767         }
1768
1769         stonewall = stonewall_flag;
1770         do {
1771                 /*
1772                  * if skip_fgets is set, we already have loaded a line we
1773                  * haven't handled.
1774                  */
1775                 if (!skip_fgets) {
1776                         if (is_buf)
1777                                 p = strsep(&file, "\n");
1778                         else
1779                                 p = fgets(string, 4096, f);
1780                         if (!p)
1781                                 break;
1782                 }
1783
1784                 skip_fgets = 0;
1785                 strip_blank_front(&p);
1786                 strip_blank_end(p);
1787
1788                 dprint(FD_PARSE, "%s\n", p);
1789                 if (is_empty_or_comment(p))
1790                         continue;
1791
1792                 if (!nested) {
1793                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1794                                 if (inside_skip)
1795                                         continue;
1796
1797                                 log_err("fio: option <%s> outside of "
1798                                         "[] job section\n", p);
1799                                 ret = 1;
1800                                 break;
1801                         }
1802
1803                         name[strlen(name) - 1] = '\0';
1804
1805                         if (skip_this_section(name)) {
1806                                 inside_skip = 1;
1807                                 continue;
1808                         } else
1809                                 inside_skip = 0;
1810
1811                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1812
1813                         global = !strncmp(name, "global", 6);
1814
1815                         if (dump_cmdline) {
1816                                 if (first_sect)
1817                                         log_info("fio ");
1818                                 if (!global)
1819                                         log_info("--name=%s ", name);
1820                                 first_sect = 0;
1821                         }
1822
1823                         td = get_new_job(global, &def_thread, false, name);
1824                         if (!td) {
1825                                 ret = 1;
1826                                 break;
1827                         }
1828
1829                         /*
1830                          * Separate multiple job files by a stonewall
1831                          */
1832                         if (!global && stonewall) {
1833                                 td->o.stonewall = stonewall;
1834                                 stonewall = 0;
1835                         }
1836
1837                         num_opts = 0;
1838                         memset(opts, 0, alloc_opts * sizeof(char *));
1839                 }
1840                 else
1841                         skip_fgets = 1;
1842
1843                 while (1) {
1844                         if (!skip_fgets) {
1845                                 if (is_buf)
1846                                         p = strsep(&file, "\n");
1847                                 else
1848                                         p = fgets(string, 4096, f);
1849                                 if (!p)
1850                                         break;
1851                                 dprint(FD_PARSE, "%s", p);
1852                         }
1853                         else
1854                                 skip_fgets = 0;
1855
1856                         if (is_empty_or_comment(p))
1857                                 continue;
1858
1859                         strip_blank_front(&p);
1860
1861                         /*
1862                          * new section, break out and make sure we don't
1863                          * fgets() a new line at the top.
1864                          */
1865                         if (p[0] == '[') {
1866                                 if (nested) {
1867                                         log_err("No new sections in included files\n");
1868                                         return 1;
1869                                 }
1870
1871                                 skip_fgets = 1;
1872                                 break;
1873                         }
1874
1875                         strip_blank_end(p);
1876
1877                         if (!strncmp(p, "include", strlen("include"))) {
1878                                 char *filename = p + strlen("include") + 1,
1879                                         *ts, *full_fn = NULL;
1880
1881                                 /*
1882                                  * Allow for the include filename
1883                                  * specification to be relative.
1884                                  */
1885                                 if (access(filename, F_OK) &&
1886                                     (ts = strrchr(file, '/'))) {
1887                                         int len = ts - file +
1888                                                 strlen(filename) + 2;
1889
1890                                         if (!(full_fn = calloc(1, len))) {
1891                                                 ret = ENOMEM;
1892                                                 break;
1893                                         }
1894
1895                                         strncpy(full_fn,
1896                                                 file, (ts - file) + 1);
1897                                         strncpy(full_fn + (ts - file) + 1,
1898                                                 filename, strlen(filename));
1899                                         full_fn[len - 1] = 0;
1900                                         filename = full_fn;
1901                                 }
1902
1903                                 ret = __parse_jobs_ini(td, filename, is_buf,
1904                                                        stonewall_flag, type, 1,
1905                                                        name, &opts,
1906                                                        &alloc_opts, &num_opts);
1907
1908                                 if (ret) {
1909                                         log_err("Error %d while parsing "
1910                                                 "include file %s\n",
1911                                                 ret, filename);
1912                                 }
1913
1914                                 if (full_fn)
1915                                         free(full_fn);
1916
1917                                 if (ret)
1918                                         break;
1919
1920                                 continue;
1921                         }
1922
1923                         if (num_opts == alloc_opts) {
1924                                 alloc_opts <<= 1;
1925                                 opts = realloc(opts,
1926                                                 alloc_opts * sizeof(char *));
1927                         }
1928
1929                         opts[num_opts] = strdup(p);
1930                         num_opts++;
1931                 }
1932
1933                 if (nested) {
1934                         *popts = opts;
1935                         *aopts = alloc_opts;
1936                         *nopts = num_opts;
1937                         goto out;
1938                 }
1939
1940                 ret = fio_options_parse(td, opts, num_opts);
1941                 if (!ret) {
1942                         if (dump_cmdline)
1943                                 dump_opt_list(td);
1944
1945                         ret = add_job(td, name, 0, 0, type);
1946                 } else {
1947                         log_err("fio: job %s dropped\n", name);
1948                         put_job(td);
1949                 }
1950
1951                 for (i = 0; i < num_opts; i++)
1952                         free(opts[i]);
1953                 num_opts = 0;
1954         } while (!ret);
1955
1956         if (dump_cmdline)
1957                 log_info("\n");
1958
1959         i = 0;
1960         while (i < nr_job_sections) {
1961                 free(job_sections[i]);
1962                 i++;
1963         }
1964
1965         free(opts);
1966 out:
1967         free(string);
1968         if (!nested)
1969                 free(name);
1970         if (!is_buf && f != stdin)
1971                 fclose(f);
1972         return ret;
1973 }
1974
1975 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1976 {
1977         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1978                         0, NULL, NULL, NULL, NULL);
1979 }
1980
1981 static int fill_def_thread(void)
1982 {
1983         memset(&def_thread, 0, sizeof(def_thread));
1984         INIT_FLIST_HEAD(&def_thread.opt_list);
1985
1986         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1987         def_thread.o.error_dump = 1;
1988
1989         /*
1990          * fill default options
1991          */
1992         fio_fill_default_options(&def_thread);
1993         return 0;
1994 }
1995
1996 static void show_debug_categories(void)
1997 {
1998 #ifdef FIO_INC_DEBUG
1999         struct debug_level *dl = &debug_levels[0];
2000         int curlen, first = 1;
2001
2002         curlen = 0;
2003         while (dl->name) {
2004                 int has_next = (dl + 1)->name != NULL;
2005
2006                 if (first || curlen + strlen(dl->name) >= 80) {
2007                         if (!first) {
2008                                 printf("\n");
2009                                 curlen = 0;
2010                         }
2011                         curlen += printf("\t\t\t%s", dl->name);
2012                         curlen += 3 * (8 - 1);
2013                         if (has_next)
2014                                 curlen += printf(",");
2015                 } else {
2016                         curlen += printf("%s", dl->name);
2017                         if (has_next)
2018                                 curlen += printf(",");
2019                 }
2020                 dl++;
2021                 first = 0;
2022         }
2023         printf("\n");
2024 #endif
2025 }
2026
2027 /*
2028  * Following options aren't printed by usage().
2029  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2030  * --latency-log - Deprecated option.
2031  */
2032 static void usage(const char *name)
2033 {
2034         printf("%s\n", fio_version_string);
2035         printf("%s [options] [job options] <job file(s)>\n", name);
2036         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2037         show_debug_categories();
2038         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2039         printf("  --output\t\tWrite output to file\n");
2040         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2041         printf("  --minimal\t\tMinimal (terse) output\n");
2042         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2043         printf("  --terse-version=type\tSet terse version output format"
2044                 " (default 3, or 2 or 4)\n");
2045         printf("  --version\t\tPrint version info and exit\n");
2046         printf("  --help\t\tPrint this page\n");
2047         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2048         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2049         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2050                 " them\n");
2051         printf("  --enghelp=engine\tPrint ioengine help, or list"
2052                 " available ioengines\n");
2053         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2054                 " cmd\n");
2055         printf("  --showcmd\t\tTurn a job file into command line options\n");
2056         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2057         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2058         printf("  --eta-newline=time\tForce a new line for every 'time'");
2059         printf(" period passed\n");
2060         printf("  --status-interval=t\tForce full status dump every");
2061         printf(" 't' period passed\n");
2062         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2063                 " writes\n");
2064         printf("  --section=name\tOnly run specified section in job file,"
2065                 " multiple sections can be specified\n");
2066         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2067                 " (def 16384)\n");
2068         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2069         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2070         printf("  --server=args\t\tStart a backend fio server\n");
2071         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2072         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2073         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2074         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2075                 "\t\t\t(option=system,percpu) or run unit work\n"
2076                 "\t\t\tcalibration only (option=calibrate)\n");
2077 #ifdef CONFIG_ZLIB
2078         printf("  --inflate-log=log\tInflate and output compressed log\n");
2079 #endif
2080         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2081         printf("  --trigger-timeout=t\tExecute trigger af this time\n");
2082         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2083         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2084         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2085         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
2086         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
2087         printf("\n                   Jens Axboe <axboe@fb.com>\n");
2088 }
2089
2090 #ifdef FIO_INC_DEBUG
2091 struct debug_level debug_levels[] = {
2092         { .name = "process",
2093           .help = "Process creation/exit logging",
2094           .shift = FD_PROCESS,
2095         },
2096         { .name = "file",
2097           .help = "File related action logging",
2098           .shift = FD_FILE,
2099         },
2100         { .name = "io",
2101           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2102           .shift = FD_IO,
2103         },
2104         { .name = "mem",
2105           .help = "Memory allocation/freeing logging",
2106           .shift = FD_MEM,
2107         },
2108         { .name = "blktrace",
2109           .help = "blktrace action logging",
2110           .shift = FD_BLKTRACE,
2111         },
2112         { .name = "verify",
2113           .help = "IO verification action logging",
2114           .shift = FD_VERIFY,
2115         },
2116         { .name = "random",
2117           .help = "Random generation logging",
2118           .shift = FD_RANDOM,
2119         },
2120         { .name = "parse",
2121           .help = "Parser logging",
2122           .shift = FD_PARSE,
2123         },
2124         { .name = "diskutil",
2125           .help = "Disk utility logging actions",
2126           .shift = FD_DISKUTIL,
2127         },
2128         { .name = "job",
2129           .help = "Logging related to creating/destroying jobs",
2130           .shift = FD_JOB,
2131         },
2132         { .name = "mutex",
2133           .help = "Mutex logging",
2134           .shift = FD_MUTEX
2135         },
2136         { .name = "profile",
2137           .help = "Logging related to profiles",
2138           .shift = FD_PROFILE,
2139         },
2140         { .name = "time",
2141           .help = "Logging related to time keeping functions",
2142           .shift = FD_TIME,
2143         },
2144         { .name = "net",
2145           .help = "Network logging",
2146           .shift = FD_NET,
2147         },
2148         { .name = "rate",
2149           .help = "Rate logging",
2150           .shift = FD_RATE,
2151         },
2152         { .name = "compress",
2153           .help = "Log compression logging",
2154           .shift = FD_COMPRESS,
2155         },
2156         { .name = "steadystate",
2157           .help = "Steady state detection logging",
2158           .shift = FD_STEADYSTATE,
2159         },
2160         { .name = "helperthread",
2161           .help = "Helper thread logging",
2162           .shift = FD_HELPERTHREAD,
2163         },
2164         { .name = NULL, },
2165 };
2166
2167 static int set_debug(const char *string)
2168 {
2169         struct debug_level *dl;
2170         char *p = (char *) string;
2171         char *opt;
2172         int i;
2173
2174         if (!string)
2175                 return 0;
2176
2177         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2178                 log_info("fio: dumping debug options:");
2179                 for (i = 0; debug_levels[i].name; i++) {
2180                         dl = &debug_levels[i];
2181                         log_info("%s,", dl->name);
2182                 }
2183                 log_info("all\n");
2184                 return 1;
2185         }
2186
2187         while ((opt = strsep(&p, ",")) != NULL) {
2188                 int found = 0;
2189
2190                 if (!strncmp(opt, "all", 3)) {
2191                         log_info("fio: set all debug options\n");
2192                         fio_debug = ~0UL;
2193                         continue;
2194                 }
2195
2196                 for (i = 0; debug_levels[i].name; i++) {
2197                         dl = &debug_levels[i];
2198                         found = !strncmp(opt, dl->name, strlen(dl->name));
2199                         if (!found)
2200                                 continue;
2201
2202                         if (dl->shift == FD_JOB) {
2203                                 opt = strchr(opt, ':');
2204                                 if (!opt) {
2205                                         log_err("fio: missing job number\n");
2206                                         break;
2207                                 }
2208                                 opt++;
2209                                 fio_debug_jobno = atoi(opt);
2210                                 log_info("fio: set debug jobno %d\n",
2211                                                         fio_debug_jobno);
2212                         } else {
2213                                 log_info("fio: set debug option %s\n", opt);
2214                                 fio_debug |= (1UL << dl->shift);
2215                         }
2216                         break;
2217                 }
2218
2219                 if (!found)
2220                         log_err("fio: debug mask %s not found\n", opt);
2221         }
2222         return 0;
2223 }
2224 #else
2225 static int set_debug(const char *string)
2226 {
2227         log_err("fio: debug tracing not included in build\n");
2228         return 1;
2229 }
2230 #endif
2231
2232 static void fio_options_fill_optstring(void)
2233 {
2234         char *ostr = cmd_optstr;
2235         int i, c;
2236
2237         c = i = 0;
2238         while (l_opts[i].name) {
2239                 ostr[c++] = l_opts[i].val;
2240                 if (l_opts[i].has_arg == required_argument)
2241                         ostr[c++] = ':';
2242                 else if (l_opts[i].has_arg == optional_argument) {
2243                         ostr[c++] = ':';
2244                         ostr[c++] = ':';
2245                 }
2246                 i++;
2247         }
2248         ostr[c] = '\0';
2249 }
2250
2251 static int client_flag_set(char c)
2252 {
2253         int i;
2254
2255         i = 0;
2256         while (l_opts[i].name) {
2257                 int val = l_opts[i].val;
2258
2259                 if (c == (val & 0xff))
2260                         return (val & FIO_CLIENT_FLAG);
2261
2262                 i++;
2263         }
2264
2265         return 0;
2266 }
2267
2268 static void parse_cmd_client(void *client, char *opt)
2269 {
2270         fio_client_add_cmd_option(client, opt);
2271 }
2272
2273 static void show_closest_option(const char *name)
2274 {
2275         int best_option, best_distance;
2276         int i, distance;
2277
2278         while (*name == '-')
2279                 name++;
2280
2281         best_option = -1;
2282         best_distance = INT_MAX;
2283         i = 0;
2284         while (l_opts[i].name) {
2285                 distance = string_distance(name, l_opts[i].name);
2286                 if (distance < best_distance) {
2287                         best_distance = distance;
2288                         best_option = i;
2289                 }
2290                 i++;
2291         }
2292
2293         if (best_option != -1 && string_distance_ok(name, best_distance))
2294                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2295 }
2296
2297 static int parse_output_format(const char *optarg)
2298 {
2299         char *p, *orig, *opt;
2300         int ret = 0;
2301
2302         p = orig = strdup(optarg);
2303
2304         output_format = 0;
2305
2306         while ((opt = strsep(&p, ",")) != NULL) {
2307                 if (!strcmp(opt, "minimal") ||
2308                     !strcmp(opt, "terse") ||
2309                     !strcmp(opt, "csv"))
2310                         output_format |= FIO_OUTPUT_TERSE;
2311                 else if (!strcmp(opt, "json"))
2312                         output_format |= FIO_OUTPUT_JSON;
2313                 else if (!strcmp(opt, "json+"))
2314                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2315                 else if (!strcmp(opt, "normal"))
2316                         output_format |= FIO_OUTPUT_NORMAL;
2317                 else {
2318                         log_err("fio: invalid output format %s\n", opt);
2319                         ret = 1;
2320                         break;
2321                 }
2322         }
2323
2324         free(orig);
2325         return ret;
2326 }
2327
2328 int parse_cmd_line(int argc, char *argv[], int client_type)
2329 {
2330         struct thread_data *td = NULL;
2331         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2332         char *ostr = cmd_optstr;
2333         char *pid_file = NULL;
2334         void *cur_client = NULL;
2335         int backend = 0;
2336
2337         /*
2338          * Reset optind handling, since we may call this multiple times
2339          * for the backend.
2340          */
2341         optind = 1;
2342
2343         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2344                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2345                         parse_cmd_client(cur_client, argv[optind - 1]);
2346                         c &= ~FIO_CLIENT_FLAG;
2347                 }
2348
2349                 switch (c) {
2350                 case 'a':
2351                         smalloc_pool_size = atoi(optarg);
2352                         smalloc_pool_size <<= 10;
2353                         sinit();
2354                         break;
2355                 case 'l':
2356                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2357                         do_exit++;
2358                         exit_val = 1;
2359                         break;
2360                 case 'b':
2361                         write_bw_log = 1;
2362                         break;
2363                 case 'o': {
2364                         FILE *tmp;
2365
2366                         if (f_out && f_out != stdout)
2367                                 fclose(f_out);
2368
2369                         tmp = fopen(optarg, "w+");
2370                         if (!tmp) {
2371                                 log_err("fio: output file open error: %s\n", strerror(errno));
2372                                 exit_val = 1;
2373                                 do_exit++;
2374                                 break;
2375                         }
2376                         f_err = f_out = tmp;
2377                         break;
2378                         }
2379                 case 'm':
2380                         output_format = FIO_OUTPUT_TERSE;
2381                         break;
2382                 case 'F':
2383                         if (parse_output_format(optarg)) {
2384                                 log_err("fio: failed parsing output-format\n");
2385                                 exit_val = 1;
2386                                 do_exit++;
2387                                 break;
2388                         }
2389                         break;
2390                 case 'f':
2391                         output_format |= FIO_OUTPUT_TERSE;
2392                         break;
2393                 case 'h':
2394                         did_arg = 1;
2395                         if (!cur_client) {
2396                                 usage(argv[0]);
2397                                 do_exit++;
2398                         }
2399                         break;
2400                 case 'c':
2401                         did_arg = 1;
2402                         if (!cur_client) {
2403                                 fio_show_option_help(optarg);
2404                                 do_exit++;
2405                         }
2406                         break;
2407                 case 'i':
2408                         did_arg = 1;
2409                         if (!cur_client) {
2410                                 fio_show_ioengine_help(optarg);
2411                                 do_exit++;
2412                         }
2413                         break;
2414                 case 's':
2415                         did_arg = 1;
2416                         dump_cmdline = 1;
2417                         break;
2418                 case 'r':
2419                         read_only = 1;
2420                         break;
2421                 case 'v':
2422                         did_arg = 1;
2423                         if (!cur_client) {
2424                                 log_info("%s\n", fio_version_string);
2425                                 do_exit++;
2426                         }
2427                         break;
2428                 case 'V':
2429                         terse_version = atoi(optarg);
2430                         if (!(terse_version >= 2 && terse_version <= 5)) {
2431                                 log_err("fio: bad terse version format\n");
2432                                 exit_val = 1;
2433                                 do_exit++;
2434                         }
2435                         break;
2436                 case 'e':
2437                         if (!strcmp("always", optarg))
2438                                 eta_print = FIO_ETA_ALWAYS;
2439                         else if (!strcmp("never", optarg))
2440                                 eta_print = FIO_ETA_NEVER;
2441                         break;
2442                 case 'E': {
2443                         long long t = 0;
2444
2445                         if (check_str_time(optarg, &t, 1)) {
2446                                 log_err("fio: failed parsing eta time %s\n", optarg);
2447                                 exit_val = 1;
2448                                 do_exit++;
2449                         }
2450                         eta_new_line = t / 1000;
2451                         break;
2452                         }
2453                 case 'd':
2454                         if (set_debug(optarg))
2455                                 do_exit++;
2456                         break;
2457                 case 'P':
2458                         did_arg = 1;
2459                         parse_only = 1;
2460                         break;
2461                 case 'x': {
2462                         size_t new_size;
2463
2464                         if (!strcmp(optarg, "global")) {
2465                                 log_err("fio: can't use global as only "
2466                                         "section\n");
2467                                 do_exit++;
2468                                 exit_val = 1;
2469                                 break;
2470                         }
2471                         new_size = (nr_job_sections + 1) * sizeof(char *);
2472                         job_sections = realloc(job_sections, new_size);
2473                         job_sections[nr_job_sections] = strdup(optarg);
2474                         nr_job_sections++;
2475                         break;
2476                         }
2477 #ifdef CONFIG_ZLIB
2478                 case 'X':
2479                         exit_val = iolog_file_inflate(optarg);
2480                         did_arg++;
2481                         do_exit++;
2482                         break;
2483 #endif
2484                 case 'p':
2485                         did_arg = 1;
2486                         if (exec_profile)
2487                                 free(exec_profile);
2488                         exec_profile = strdup(optarg);
2489                         break;
2490                 case FIO_GETOPT_JOB: {
2491                         const char *opt = l_opts[lidx].name;
2492                         char *val = optarg;
2493
2494                         if (!strncmp(opt, "name", 4) && td) {
2495                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2496                                 if (ret)
2497                                         goto out_free;
2498                                 td = NULL;
2499                                 did_arg = 1;
2500                         }
2501                         if (!td) {
2502                                 int is_section = !strncmp(opt, "name", 4);
2503                                 int global = 0;
2504
2505                                 if (!is_section || !strncmp(val, "global", 6))
2506                                         global = 1;
2507
2508                                 if (is_section && skip_this_section(val))
2509                                         continue;
2510
2511                                 td = get_new_job(global, &def_thread, true, NULL);
2512                                 if (!td || ioengine_load(td)) {
2513                                         if (td) {
2514                                                 put_job(td);
2515                                                 td = NULL;
2516                                         }
2517                                         do_exit++;
2518                                         exit_val = 1;
2519                                         break;
2520                                 }
2521                                 fio_options_set_ioengine_opts(l_opts, td);
2522                         }
2523
2524                         if ((!val || !strlen(val)) &&
2525                             l_opts[lidx].has_arg == required_argument) {
2526                                 log_err("fio: option %s requires an argument\n", opt);
2527                                 ret = 1;
2528                         } else
2529                                 ret = fio_cmd_option_parse(td, opt, val);
2530
2531                         if (ret) {
2532                                 if (td) {
2533                                         put_job(td);
2534                                         td = NULL;
2535                                 }
2536                                 do_exit++;
2537                                 exit_val = 1;
2538                         }
2539
2540                         if (!ret && !strcmp(opt, "ioengine")) {
2541                                 if (ioengine_load(td)) {
2542                                         put_job(td);
2543                                         td = NULL;
2544                                         do_exit++;
2545                                         exit_val = 1;
2546                                         break;
2547                                 }
2548                                 fio_options_set_ioengine_opts(l_opts, td);
2549                         }
2550                         break;
2551                 }
2552                 case FIO_GETOPT_IOENGINE: {
2553                         const char *opt = l_opts[lidx].name;
2554                         char *val = optarg;
2555
2556                         if (!td)
2557                                 break;
2558
2559                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2560                         break;
2561                 }
2562                 case 'w':
2563                         warnings_fatal = 1;
2564                         break;
2565                 case 'j':
2566                         max_jobs = atoi(optarg);
2567                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2568                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2569                                 do_exit++;
2570                                 exit_val = 1;
2571                         }
2572                         break;
2573                 case 'S':
2574                         did_arg = 1;
2575 #ifndef CONFIG_NO_SHM
2576                         if (nr_clients) {
2577                                 log_err("fio: can't be both client and server\n");
2578                                 do_exit++;
2579                                 exit_val = 1;
2580                                 break;
2581                         }
2582                         if (optarg)
2583                                 fio_server_set_arg(optarg);
2584                         is_backend = 1;
2585                         backend = 1;
2586 #else
2587                         log_err("fio: client/server requires SHM support\n");
2588                         do_exit++;
2589                         exit_val = 1;
2590 #endif
2591                         break;
2592                 case 'D':
2593                         if (pid_file)
2594                                 free(pid_file);
2595                         pid_file = strdup(optarg);
2596                         break;
2597                 case 'I':
2598                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2599                                 /* exit on error and calibration only */
2600                                 did_arg = 1;
2601                                 do_exit++;
2602                                 if (ret == -1)
2603                                         exit_val = 1;
2604                         }
2605                         break;
2606                 case 'C':
2607                         did_arg = 1;
2608                         if (is_backend) {
2609                                 log_err("fio: can't be both client and server\n");
2610                                 do_exit++;
2611                                 exit_val = 1;
2612                                 break;
2613                         }
2614                         /* if --client parameter contains a pathname */
2615                         if (0 == access(optarg, R_OK)) {
2616                                 /* file contains a list of host addrs or names */
2617                                 char hostaddr[PATH_MAX] = {0};
2618                                 char formatstr[8];
2619                                 FILE * hostf = fopen(optarg, "r");
2620                                 if (!hostf) {
2621                                         log_err("fio: could not open client list file %s for read\n", optarg);
2622                                         do_exit++;
2623                                         exit_val = 1;
2624                                         break;
2625                                 }
2626                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2627                                 /*
2628                                  * read at most PATH_MAX-1 chars from each
2629                                  * record in this file
2630                                  */
2631                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2632                                         /* expect EVERY host in file to be valid */
2633                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2634                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2635                                                 do_exit++;
2636                                                 exit_val = 1;
2637                                                 break;
2638                                         }
2639                                 }
2640                                 fclose(hostf);
2641                                 break; /* no possibility of job file for "this client only" */
2642                         }
2643                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2644                                 log_err("fio: failed adding client %s\n", optarg);
2645                                 do_exit++;
2646                                 exit_val = 1;
2647                                 break;
2648                         }
2649                         /*
2650                          * If the next argument exists and isn't an option,
2651                          * assume it's a job file for this client only.
2652                          */
2653                         while (optind < argc) {
2654                                 if (!strncmp(argv[optind], "--", 2) ||
2655                                     !strncmp(argv[optind], "-", 1))
2656                                         break;
2657
2658                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2659                                         break;
2660                                 optind++;
2661                         }
2662                         break;
2663                 case 'R':
2664                         did_arg = 1;
2665                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2666                                 do_exit++;
2667                                 exit_val = 1;
2668                         }
2669                         break;
2670                 case 'T':
2671                         did_arg = 1;
2672                         do_exit++;
2673                         exit_val = fio_monotonic_clocktest(1);
2674                         break;
2675                 case 'G':
2676                         did_arg = 1;
2677                         do_exit++;
2678                         exit_val = fio_crctest(optarg);
2679                         break;
2680                 case 'L': {
2681                         long long val;
2682
2683                         if (check_str_time(optarg, &val, 1)) {
2684                                 log_err("fio: failed parsing time %s\n", optarg);
2685                                 do_exit++;
2686                                 exit_val = 1;
2687                                 break;
2688                         }
2689                         status_interval = val / 1000;
2690                         break;
2691                         }
2692                 case 'W':
2693                         if (trigger_file)
2694                                 free(trigger_file);
2695                         trigger_file = strdup(optarg);
2696                         break;
2697                 case 'H':
2698                         if (trigger_cmd)
2699                                 free(trigger_cmd);
2700                         trigger_cmd = strdup(optarg);
2701                         break;
2702                 case 'J':
2703                         if (trigger_remote_cmd)
2704                                 free(trigger_remote_cmd);
2705                         trigger_remote_cmd = strdup(optarg);
2706                         break;
2707                 case 'K':
2708                         if (aux_path)
2709                                 free(aux_path);
2710                         aux_path = strdup(optarg);
2711                         break;
2712                 case 'B':
2713                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2714                                 log_err("fio: failed parsing time %s\n", optarg);
2715                                 do_exit++;
2716                                 exit_val = 1;
2717                         }
2718                         trigger_timeout /= 1000000;
2719                         break;
2720                 case '?':
2721                         log_err("%s: unrecognized option '%s'\n", argv[0],
2722                                                         argv[optind - 1]);
2723                         show_closest_option(argv[optind - 1]);
2724                 default:
2725                         do_exit++;
2726                         exit_val = 1;
2727                         break;
2728                 }
2729                 if (do_exit)
2730                         break;
2731         }
2732
2733         if (do_exit && !(is_backend || nr_clients))
2734                 exit(exit_val);
2735
2736         if (nr_clients && fio_clients_connect())
2737                 exit(1);
2738
2739         if (is_backend && backend)
2740                 return fio_start_server(pid_file);
2741         else if (pid_file)
2742                 free(pid_file);
2743
2744         if (td) {
2745                 if (!ret) {
2746                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2747                         if (ret)
2748                                 exit(1);
2749                 }
2750         }
2751
2752         while (!ret && optind < argc) {
2753                 ini_idx++;
2754                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2755                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2756                 optind++;
2757         }
2758
2759 out_free:
2760         return ini_idx;
2761 }
2762
2763 int fio_init_options(void)
2764 {
2765         f_out = stdout;
2766         f_err = stderr;
2767
2768         fio_options_fill_optstring();
2769         fio_options_dup_and_init(l_opts);
2770
2771         atexit(free_shm);
2772
2773         if (fill_def_thread())
2774                 return 1;
2775
2776         return 0;
2777 }
2778
2779 extern int fio_check_options(struct thread_options *);
2780
2781 int parse_options(int argc, char *argv[])
2782 {
2783         const int type = FIO_CLIENT_TYPE_CLI;
2784         int job_files, i;
2785
2786         if (fio_init_options())
2787                 return 1;
2788         if (fio_test_cconv(&def_thread.o))
2789                 log_err("fio: failed internal cconv test\n");
2790
2791         job_files = parse_cmd_line(argc, argv, type);
2792
2793         if (job_files > 0) {
2794                 for (i = 0; i < job_files; i++) {
2795                         if (i && fill_def_thread())
2796                                 return 1;
2797                         if (nr_clients) {
2798                                 if (fio_clients_send_ini(ini_file[i]))
2799                                         return 1;
2800                                 free(ini_file[i]);
2801                         } else if (!is_backend) {
2802                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2803                                         return 1;
2804                                 free(ini_file[i]);
2805                         }
2806                 }
2807         } else if (nr_clients) {
2808                 if (fill_def_thread())
2809                         return 1;
2810                 if (fio_clients_send_ini(NULL))
2811                         return 1;
2812         }
2813
2814         free(ini_file);
2815         fio_options_free(&def_thread);
2816         filesetup_mem_free();
2817
2818         if (!thread_number) {
2819                 if (parse_dryrun())
2820                         return 0;
2821                 if (exec_profile)
2822                         return 0;
2823                 if (is_backend || nr_clients)
2824                         return 0;
2825                 if (did_arg)
2826                         return 0;
2827
2828                 log_err("No job(s) defined\n\n");
2829
2830                 if (!did_arg) {
2831                         usage(argv[0]);
2832                         return 1;
2833                 }
2834
2835                 return 0;
2836         }
2837
2838         if (output_format & FIO_OUTPUT_NORMAL)
2839                 log_info("%s\n", fio_version_string);
2840
2841         return 0;
2842 }
2843
2844 void options_default_fill(struct thread_options *o)
2845 {
2846         memcpy(o, &def_thread.o, sizeof(*o));
2847 }
2848
2849 struct thread_data *get_global_options(void)
2850 {
2851         return &def_thread;
2852 }