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         /*
 702          * There's no need to check for in-flight overlapping IOs if the job
 703          * isn't changing data or the maximum iodepth is guaranteed to be 1
 704          */
 705         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 706             (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
 707                 o->serialize_overlap = 0;
 708         /*
 709          * Currently can't check for overlaps in offload mode
 710          */
 711         if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
 712                 log_err("fio: checking for in-flight overlaps when the "
 713                         "io_submit_mode is offload is not supported\n");
 714                 o->serialize_overlap = 0;
 715                 ret = warnings_fatal;
 716         }
 717
 718         if (o->nr_files > td->files_index)
 719                 o->nr_files = td->files_index;
 720
 721         if (o->open_files > o->nr_files || !o->open_files)
 722                 o->open_files = o->nr_files;
 723
 724         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 725             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 726             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 727             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 728                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 729                 ret = 1;
 730         }
 731         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 732             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 733             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 734             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 735             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 736             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 737                 log_err("fio: minimum rate exceeds rate\n");
 738                 ret = 1;
 739         }
 740
 741         if (!o->timeout && o->time_based) {
 742                 log_err("fio: time_based requires a runtime/timeout setting\n");
 743                 o->time_based = 0;
 744                 ret = warnings_fatal;
 745         }
 746
 747         if (o->fill_device && !o->size)
 748                 o->size = -1ULL;
 749
 750         if (o->verify != VERIFY_NONE) {
 751                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 752                         log_info("Multiple writers may overwrite blocks that "
 753                                 "belong to other jobs. This can cause "
 754                                 "verification failures.\n");
 755                         ret = warnings_fatal;
 756                 }
 757
 758                 if (!fio_option_is_set(o, refill_buffers))
 759                         o->refill_buffers = 1;
 760
 761                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 762                     !o->verify_interval)
 763                         o->verify_interval = o->min_bs[DDIR_WRITE];
 764
 765                 /*
 766                  * Verify interval must be smaller or equal to the
 767                  * write size.
 768                  */
 769                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 770                         o->verify_interval = o->min_bs[DDIR_WRITE];
 771                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 772                         o->verify_interval = o->min_bs[DDIR_READ];
 773
 774                 /*
 775                  * Verify interval must be a factor or both min and max
 776                  * write size
 777                  */
 778                 if (o->verify_interval % o->min_bs[DDIR_WRITE] ||
 779                     o->verify_interval % o->max_bs[DDIR_WRITE])
 780                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 781                                                         o->max_bs[DDIR_WRITE]);
 782         }
 783
 784         if (o->pre_read) {
 785                 if (o->invalidate_cache)
 786                         o->invalidate_cache = 0;
 787                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 788                         log_info("fio: cannot pre-read files with an IO engine"
 789                                  " that isn't seekable. Pre-read disabled.\n");
 790                         ret = warnings_fatal;
 791                 }
 792         }
 793
 794         if (!o->unit_base) {
 795                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 796                         o->unit_base = 1;
 797                 else
 798                         o->unit_base = 8;
 799         }
 800
 801 #ifndef FIO_HAVE_ANY_FALLOCATE
 802         /* Platform doesn't support any fallocate so force it to none */
 803         o->fallocate_mode = FIO_FALLOCATE_NONE;
 804 #endif
 805
 806 #ifndef CONFIG_FDATASYNC
 807         if (o->fdatasync_blocks) {
 808                 log_info("fio: this platform does not support fdatasync()"
 809                          " falling back to using fsync().  Use the 'fsync'"
 810                          " option instead of 'fdatasync' to get rid of"
 811                          " this warning\n");
 812                 o->fsync_blocks = o->fdatasync_blocks;
 813                 o->fdatasync_blocks = 0;
 814                 ret = warnings_fatal;
 815         }
 816 #endif
 817
 818 #ifdef WIN32
 819         /*
 820          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 821          * so fail if we're passed those flags
 822          */
 823         if (td_ioengine_flagged(td, FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 824                 log_err("fio: Windows does not support direct or non-buffered io with"
 825                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 826                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 827                 ret = 1;
 828         }
 829 #endif
 830
 831         /*
 832          * For fully compressible data, just zero them at init time.
 833          * It's faster than repeatedly filling it. For non-zero
 834          * compression, we should have refill_buffers set. Set it, unless
 835          * the job file already changed it.
 836          */
 837         if (o->compress_percentage) {
 838                 if (o->compress_percentage == 100) {
 839                         o->zero_buffers = 1;
 840                         o->compress_percentage = 0;
 841                 } else if (!fio_option_is_set(o, refill_buffers))
 842                         o->refill_buffers = 1;
 843         }
 844
 845         /*
 846          * Using a non-uniform random distribution excludes usage of
 847          * a random map
 848          */
 849         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 850                 td->o.norandommap = 1;
 851
 852         /*
 853          * If size is set but less than the min block size, complain
 854          */
 855         if (o->size && o->size < td_min_bs(td)) {
 856                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 857                         (unsigned long long) o->size, td_min_bs(td));
 858                 ret = 1;
 859         }
 860
 861         /*
 862          * O_ATOMIC implies O_DIRECT
 863          */
 864         if (td->o.oatomic)
 865                 td->o.odirect = 1;
 866
 867         /*
 868          * If randseed is set, that overrides randrepeat
 869          */
 870         if (fio_option_is_set(&td->o, rand_seed))
 871                 td->o.rand_repeatable = 0;
 872
 873         if (td_ioengine_flagged(td, FIO_NOEXTEND) && td->o.file_append) {
 874                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 875                 ret = 1;
 876         }
 877
 878         if (fio_option_is_set(o, gtod_cpu)) {
 879                 fio_gtod_init();
 880                 fio_gtod_set_cpu(o->gtod_cpu);
 881                 fio_gtod_offload = 1;
 882         }
 883
 884         td->loops = o->loops;
 885         if (!td->loops)
 886                 td->loops = 1;
 887
 888         if (td->o.block_error_hist && td->o.nr_files != 1) {
 889                 log_err("fio: block error histogram only available "
 890                         "with a single file per job, but %d files "
 891                         "provided\n", td->o.nr_files);
 892                 ret = 1;
 893         }
 894
 895         return ret;
 896 }
 897
 898 /* External engines are specified by "external:name.o") */
 899 static const char *get_engine_name(const char *str)
 900 {
 901         char *p = strstr(str, ":");
 902
 903         if (!p)
 904                 return str;
 905
 906         p++;
 907         strip_blank_front(&p);
 908         strip_blank_end(p);
 909         return p;
 910 }
 911
 912 static void init_rand_file_service(struct thread_data *td)
 913 {
 914         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 915         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 916
 917         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 918                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 919                 zipf_disable_hash(&td->next_file_zipf);
 920         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 921                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 922                 zipf_disable_hash(&td->next_file_zipf);
 923         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 924                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 925                 gauss_disable_hash(&td->next_file_gauss);
 926         }
 927 }
 928
 929 void td_fill_verify_state_seed(struct thread_data *td)
 930 {
 931         bool use64;
 932
 933         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 934                 use64 = true;
 935         else
 936                 use64 = false;
 937
 938         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 939                 use64);
 940 }
 941
 942 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 943 {
 944         int i;
 945
 946         /*
 947          * trimwrite is special in that we need to generate the same
 948          * offsets to get the "write after trim" effect. If we are
 949          * using bssplit to set buffer length distributions, ensure that
 950          * we seed the trim and write generators identically.
 951          */
 952         if (td_trimwrite(td)) {
 953                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 954                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 955                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 956         } else {
 957                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 958                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 959                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
 960         }
 961
 962         td_fill_verify_state_seed(td);
 963         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
 964
 965         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 966                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
 967         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
 968                 init_rand_file_service(td);
 969
 970         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
 971         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
 972         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
 973         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
 974         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
 975         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
 976         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
 977         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
 978
 979         if (!td_random(td))
 980                 return;
 981
 982         if (td->o.rand_repeatable)
 983                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 984
 985         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
 986
 987         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 988                 struct frand_state *s = &td->seq_rand_state[i];
 989
 990                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
 991         }
 992 }
 993
 994 void td_fill_rand_seeds(struct thread_data *td)
 995 {
 996         bool use64;
 997
 998         if (td->o.allrand_repeatable) {
 999                 unsigned int i;
1000
1001                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1002                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1003                                 + i;
1004         }
1005
1006         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1007                 use64 = true;
1008         else
1009                 use64 = false;
1010
1011         td_fill_rand_seeds_internal(td, use64);
1012
1013         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1014         frand_copy(&td->buf_state_prev, &td->buf_state);
1015 }
1016
1017 /*
1018  * Initializes the ioengine configured for a job, if it has not been done so
1019  * already.
1020  */
1021 int ioengine_load(struct thread_data *td)
1022 {
1023         const char *engine;
1024
1025         if (!td->o.ioengine) {
1026                 log_err("fio: internal fault, no IO engine specified\n");
1027                 return 1;
1028         }
1029
1030         if (td->io_ops) {
1031                 /* An engine is loaded, but the requested ioengine
1032                  * may have changed.
1033                  */
1034                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1035                         /* The right engine is already loaded */
1036                         return 0;
1037                 }
1038
1039                 /* Unload the old engine. */
1040                 free_ioengine(td);
1041         }
1042
1043         engine = get_engine_name(td->o.ioengine);
1044         td->io_ops = load_ioengine(td, engine);
1045         if (!td->io_ops) {
1046                 log_err("fio: failed to load engine %s\n", engine);
1047                 return 1;
1048         }
1049
1050         if (td->io_ops->option_struct_size && td->io_ops->options) {
1051                 /*
1052                  * In cases where td->eo is set, clone it for a child thread.
1053                  * This requires that the parent thread has the same ioengine,
1054                  * but that requirement must be enforced by the code which
1055                  * cloned the thread.
1056                  */
1057                 void *origeo = td->eo;
1058                 /*
1059                  * Otherwise use the default thread options.
1060                  */
1061                 if (!origeo && td != &def_thread && def_thread.eo &&
1062                     def_thread.io_ops->options == td->io_ops->options)
1063                         origeo = def_thread.eo;
1064
1065                 options_init(td->io_ops->options);
1066                 td->eo = malloc(td->io_ops->option_struct_size);
1067                 /*
1068                  * Use the default thread as an option template if this uses the
1069                  * same options structure and there are non-default options
1070                  * used.
1071                  */
1072                 if (origeo) {
1073                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1074                         options_mem_dupe(td->io_ops->options, td->eo);
1075                 } else {
1076                         memset(td->eo, 0, td->io_ops->option_struct_size);
1077                         fill_default_options(td->eo, td->io_ops->options);
1078                 }
1079                 *(struct thread_data **)td->eo = td;
1080         }
1081
1082         if (td->o.odirect)
1083                 td->io_ops->flags |= FIO_RAWIO;
1084
1085         td_set_ioengine_flags(td);
1086         return 0;
1087 }
1088
1089 static void init_flags(struct thread_data *td)
1090 {
1091         struct thread_options *o = &td->o;
1092
1093         if (o->verify_backlog)
1094                 td->flags |= TD_F_VER_BACKLOG;
1095         if (o->trim_backlog)
1096                 td->flags |= TD_F_TRIM_BACKLOG;
1097         if (o->read_iolog_file)
1098                 td->flags |= TD_F_READ_IOLOG;
1099         if (o->refill_buffers)
1100                 td->flags |= TD_F_REFILL_BUFFERS;
1101         /*
1102          * Always scramble buffers if asked to
1103          */
1104         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1105                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1106         /*
1107          * But also scramble buffers, unless we were explicitly asked
1108          * to zero them.
1109          */
1110         if (o->scramble_buffers && !(o->zero_buffers &&
1111             fio_option_is_set(o, zero_buffers)))
1112                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1113         if (o->verify != VERIFY_NONE)
1114                 td->flags |= TD_F_VER_NONE;
1115
1116         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1117                 td->flags |= TD_F_NEED_LOCK;
1118
1119         if (o->mem_type == MEM_CUDA_MALLOC)
1120                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1121 }
1122
1123 static int setup_random_seeds(struct thread_data *td)
1124 {
1125         unsigned long seed;
1126         unsigned int i;
1127
1128         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1129                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1130                 if (!ret)
1131                         td_fill_rand_seeds(td);
1132                 return ret;
1133         }
1134
1135         seed = td->o.rand_seed;
1136         for (i = 0; i < 4; i++)
1137                 seed *= 0x9e370001UL;
1138
1139         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1140                 td->rand_seeds[i] = seed * td->thread_number + i;
1141                 seed *= 0x9e370001UL;
1142         }
1143
1144         td_fill_rand_seeds(td);
1145         return 0;
1146 }
1147
1148 enum {
1149         FPRE_NONE = 0,
1150         FPRE_JOBNAME,
1151         FPRE_JOBNUM,
1152         FPRE_FILENUM
1153 };
1154
1155 static struct fpre_keyword {
1156         const char *keyword;
1157         size_t strlen;
1158         int key;
1159 } fpre_keywords[] = {
1160         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1161         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1162         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1163         { .keyword = NULL, },
1164         };
1165
1166 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1167                            const char *jobname, int jobnum, int filenum)
1168 {
1169         struct fpre_keyword *f;
1170         char copy[PATH_MAX];
1171         size_t dst_left = PATH_MAX - 1;
1172
1173         if (!o->filename_format || !strlen(o->filename_format)) {
1174                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1175                 return buf;
1176         }
1177
1178         for (f = &fpre_keywords[0]; f->keyword; f++)
1179                 f->strlen = strlen(f->keyword);
1180
1181         buf[buf_size - 1] = '\0';
1182         strncpy(buf, o->filename_format, buf_size - 1);
1183
1184         memset(copy, 0, sizeof(copy));
1185         for (f = &fpre_keywords[0]; f->keyword; f++) {
1186                 do {
1187                         size_t pre_len, post_start = 0;
1188                         char *str, *dst = copy;
1189
1190                         str = strcasestr(buf, f->keyword);
1191                         if (!str)
1192                                 break;
1193
1194                         pre_len = str - buf;
1195                         if (strlen(str) != f->strlen)
1196                                 post_start = pre_len + f->strlen;
1197
1198                         if (pre_len) {
1199                                 strncpy(dst, buf, pre_len);
1200                                 dst += pre_len;
1201                                 dst_left -= pre_len;
1202                         }
1203
1204                         switch (f->key) {
1205                         case FPRE_JOBNAME: {
1206                                 int ret;
1207
1208                                 ret = snprintf(dst, dst_left, "%s", jobname);
1209                                 if (ret < 0)
1210                                         break;
1211                                 else if (ret > dst_left) {
1212                                         log_err("fio: truncated filename\n");
1213                                         dst += dst_left;
1214                                         dst_left = 0;
1215                                 } else {
1216                                         dst += ret;
1217                                         dst_left -= ret;
1218                                 }
1219                                 break;
1220                                 }
1221                         case FPRE_JOBNUM: {
1222                                 int ret;
1223
1224                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1225                                 if (ret < 0)
1226                                         break;
1227                                 else if (ret > dst_left) {
1228                                         log_err("fio: truncated filename\n");
1229                                         dst += dst_left;
1230                                         dst_left = 0;
1231                                 } else {
1232                                         dst += ret;
1233                                         dst_left -= ret;
1234                                 }
1235                                 break;
1236                                 }
1237                         case FPRE_FILENUM: {
1238                                 int ret;
1239
1240                                 ret = snprintf(dst, dst_left, "%d", filenum);
1241                                 if (ret < 0)
1242                                         break;
1243                                 else if (ret > dst_left) {
1244                                         log_err("fio: truncated filename\n");
1245                                         dst += dst_left;
1246                                         dst_left = 0;
1247                                 } else {
1248                                         dst += ret;
1249                                         dst_left -= ret;
1250                                 }
1251                                 break;
1252                                 }
1253                         default:
1254                                 assert(0);
1255                                 break;
1256                         }
1257
1258                         if (post_start)
1259                                 strncpy(dst, buf + post_start, dst_left);
1260
1261                         strncpy(buf, copy, buf_size - 1);
1262                 } while (1);
1263         }
1264
1265         return buf;
1266 }
1267
1268 bool parse_dryrun(void)
1269 {
1270         return dump_cmdline || parse_only;
1271 }
1272
1273 static void gen_log_name(char *name, size_t size, const char *logtype,
1274                          const char *logname, unsigned int num,
1275                          const char *suf, int per_job)
1276 {
1277         if (per_job)
1278                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1279         else
1280                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1281 }
1282
1283 static int check_waitees(char *waitee)
1284 {
1285         struct thread_data *td;
1286         int i, ret = 0;
1287
1288         for_each_td(td, i) {
1289                 if (td->subjob_number)
1290                         continue;
1291
1292                 ret += !strcmp(td->o.name, waitee);
1293         }
1294
1295         return ret;
1296 }
1297
1298 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1299 {
1300         int nw;
1301
1302         if (!o->wait_for)
1303                 return true;
1304
1305         if (!strcmp(jobname, o->wait_for)) {
1306                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1307                                 jobname, o->wait_for);
1308                 return false;
1309         }
1310
1311         if (!(nw = check_waitees(o->wait_for))) {
1312                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1313                 return false;
1314         }
1315
1316         if (nw > 1) {
1317                 log_err("%s: multiple waitees %s found,\n"
1318                         "please avoid duplicates when using wait_for option.\n",
1319                                 jobname, o->wait_for);
1320                 return false;
1321         }
1322
1323         return true;
1324 }
1325
1326 /*
1327  * Adds a job to the list of things todo. Sanitizes the various options
1328  * to make sure we don't have conflicts, and initializes various
1329  * members of td.
1330  */
1331 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1332                    int recursed, int client_type)
1333 {
1334         unsigned int i;
1335         char fname[PATH_MAX];
1336         int numjobs, file_alloced;
1337         struct thread_options *o = &td->o;
1338         char logname[PATH_MAX + 32];
1339
1340         /*
1341          * the def_thread is just for options, it's not a real job
1342          */
1343         if (td == &def_thread)
1344                 return 0;
1345
1346         init_flags(td);
1347
1348         /*
1349          * if we are just dumping the output command line, don't add the job
1350          */
1351         if (parse_dryrun()) {
1352                 put_job(td);
1353                 return 0;
1354         }
1355
1356         td->client_type = client_type;
1357
1358         if (profile_td_init(td))
1359                 goto err;
1360
1361         if (ioengine_load(td))
1362                 goto err;
1363
1364         file_alloced = 0;
1365         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1366                 file_alloced = 1;
1367
1368                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1369                         add_file(td, jobname, job_add_num, 0);
1370                 else {
1371                         for (i = 0; i < o->nr_files; i++)
1372                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1373                 }
1374         }
1375
1376         if (fixup_options(td))
1377                 goto err;
1378
1379         /*
1380          * Belongs to fixup_options, but o->name is not necessarily set as yet
1381          */
1382         if (!wait_for_ok(jobname, o))
1383                 goto err;
1384
1385         flow_init_job(td);
1386
1387         /*
1388          * IO engines only need this for option callbacks, and the address may
1389          * change in subprocesses.
1390          */
1391         if (td->eo)
1392                 *(struct thread_data **)td->eo = NULL;
1393
1394         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1395                 struct fio_file *f;
1396
1397                 for_each_file(td, f, i)
1398                         f->real_file_size = -1ULL;
1399         }
1400
1401         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1402
1403         td->ts.clat_percentiles = o->clat_percentiles;
1404         td->ts.percentile_precision = o->percentile_precision;
1405         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1406
1407         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1408                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1409                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1410                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1411                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1412                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1413         }
1414         td->ddir_seq_nr = o->ddir_seq_nr;
1415
1416         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1417                 prev_group_jobs = 0;
1418                 groupid++;
1419                 if (groupid == INT_MAX) {
1420                         log_err("fio: too many groups defined\n");
1421                         goto err;
1422                 }
1423         }
1424
1425         td->groupid = groupid;
1426         prev_group_jobs++;
1427
1428         if (setup_random_seeds(td)) {
1429                 td_verror(td, errno, "setup_random_seeds");
1430                 goto err;
1431         }
1432
1433         if (setup_rate(td))
1434                 goto err;
1435
1436         if (o->write_lat_log) {
1437                 struct log_params p = {
1438                         .td = td,
1439                         .avg_msec = o->log_avg_msec,
1440                         .hist_msec = o->log_hist_msec,
1441                         .hist_coarseness = o->log_hist_coarseness,
1442                         .log_type = IO_LOG_TYPE_LAT,
1443                         .log_offset = o->log_offset,
1444                         .log_gz = o->log_gz,
1445                         .log_gz_store = o->log_gz_store,
1446                 };
1447                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1448                 const char *suf;
1449
1450                 if (p.log_gz_store)
1451                         suf = "log.fz";
1452                 else
1453                         suf = "log";
1454
1455                 gen_log_name(logname, sizeof(logname), "lat", pre,
1456                                 td->thread_number, suf, o->per_job_logs);
1457                 setup_log(&td->lat_log, &p, logname);
1458
1459                 gen_log_name(logname, sizeof(logname), "slat", pre,
1460                                 td->thread_number, suf, o->per_job_logs);
1461                 setup_log(&td->slat_log, &p, logname);
1462
1463                 gen_log_name(logname, sizeof(logname), "clat", pre,
1464                                 td->thread_number, suf, o->per_job_logs);
1465                 setup_log(&td->clat_log, &p, logname);
1466         }
1467
1468         if (o->write_hist_log) {
1469                 struct log_params p = {
1470                         .td = td,
1471                         .avg_msec = o->log_avg_msec,
1472                         .hist_msec = o->log_hist_msec,
1473                         .hist_coarseness = o->log_hist_coarseness,
1474                         .log_type = IO_LOG_TYPE_HIST,
1475                         .log_offset = o->log_offset,
1476                         .log_gz = o->log_gz,
1477                         .log_gz_store = o->log_gz_store,
1478                 };
1479                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1480                 const char *suf;
1481
1482 #ifndef CONFIG_ZLIB
1483                 if (td->client_type) {
1484                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1485                         goto err;
1486                 }
1487 #endif
1488
1489                 if (p.log_gz_store)
1490                         suf = "log.fz";
1491                 else
1492                         suf = "log";
1493
1494                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1495                                 td->thread_number, suf, o->per_job_logs);
1496                 setup_log(&td->clat_hist_log, &p, logname);
1497         }
1498
1499         if (o->write_bw_log) {
1500                 struct log_params p = {
1501                         .td = td,
1502                         .avg_msec = o->log_avg_msec,
1503                         .hist_msec = o->log_hist_msec,
1504                         .hist_coarseness = o->log_hist_coarseness,
1505                         .log_type = IO_LOG_TYPE_BW,
1506                         .log_offset = o->log_offset,
1507                         .log_gz = o->log_gz,
1508                         .log_gz_store = o->log_gz_store,
1509                 };
1510                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1511                 const char *suf;
1512
1513                 if (fio_option_is_set(o, bw_avg_time))
1514                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1515                 else
1516                         o->bw_avg_time = p.avg_msec;
1517
1518                 p.hist_msec = o->log_hist_msec;
1519                 p.hist_coarseness = o->log_hist_coarseness;
1520
1521                 if (p.log_gz_store)
1522                         suf = "log.fz";
1523                 else
1524                         suf = "log";
1525
1526                 gen_log_name(logname, sizeof(logname), "bw", pre,
1527                                 td->thread_number, suf, o->per_job_logs);
1528                 setup_log(&td->bw_log, &p, logname);
1529         }
1530         if (o->write_iops_log) {
1531                 struct log_params p = {
1532                         .td = td,
1533                         .avg_msec = o->log_avg_msec,
1534                         .hist_msec = o->log_hist_msec,
1535                         .hist_coarseness = o->log_hist_coarseness,
1536                         .log_type = IO_LOG_TYPE_IOPS,
1537                         .log_offset = o->log_offset,
1538                         .log_gz = o->log_gz,
1539                         .log_gz_store = o->log_gz_store,
1540                 };
1541                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1542                 const char *suf;
1543
1544                 if (fio_option_is_set(o, iops_avg_time))
1545                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1546                 else
1547                         o->iops_avg_time = p.avg_msec;
1548
1549                 p.hist_msec = o->log_hist_msec;
1550                 p.hist_coarseness = o->log_hist_coarseness;
1551
1552                 if (p.log_gz_store)
1553                         suf = "log.fz";
1554                 else
1555                         suf = "log";
1556
1557                 gen_log_name(logname, sizeof(logname), "iops", pre,
1558                                 td->thread_number, suf, o->per_job_logs);
1559                 setup_log(&td->iops_log, &p, logname);
1560         }
1561
1562         if (!o->name)
1563                 o->name = strdup(jobname);
1564
1565         if (output_format & FIO_OUTPUT_NORMAL) {
1566                 if (!job_add_num) {
1567                         if (is_backend && !recursed)
1568                                 fio_server_send_add_job(td);
1569
1570                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1571                                 char *c1, *c2, *c3, *c4;
1572                                 char *c5 = NULL, *c6 = NULL;
1573                                 int i2p = is_power_of_2(o->kb_base);
1574
1575                                 c1 = num2str(o->min_bs[DDIR_READ], 4, 1, i2p, N2S_BYTE);
1576                                 c2 = num2str(o->max_bs[DDIR_READ], 4, 1, i2p, N2S_BYTE);
1577                                 c3 = num2str(o->min_bs[DDIR_WRITE], 4, 1, i2p, N2S_BYTE);
1578                                 c4 = num2str(o->max_bs[DDIR_WRITE], 4, 1, i2p, N2S_BYTE);
1579
1580                                 if (!o->bs_is_seq_rand) {
1581                                         c5 = num2str(o->min_bs[DDIR_TRIM], 4, 1, i2p, N2S_BYTE);
1582                                         c6 = num2str(o->max_bs[DDIR_TRIM], 4, 1, i2p, N2S_BYTE);
1583                                 }
1584
1585                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1586                                                         td->groupid,
1587                                                         ddir_str(o->td_ddir));
1588
1589                                 if (o->bs_is_seq_rand)
1590                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1591                                                         c1, c2, c3, c4);
1592                                 else
1593                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1594                                                         c1, c2, c3, c4, c5, c6);
1595
1596                                 log_info("ioengine=%s, iodepth=%u\n",
1597                                                 td->io_ops->name, o->iodepth);
1598
1599                                 free(c1);
1600                                 free(c2);
1601                                 free(c3);
1602                                 free(c4);
1603                                 free(c5);
1604                                 free(c6);
1605                         }
1606                 } else if (job_add_num == 1)
1607                         log_info("...\n");
1608         }
1609
1610         if (td_steadystate_init(td))
1611                 goto err;
1612
1613         /*
1614          * recurse add identical jobs, clear numjobs and stonewall options
1615          * as they don't apply to sub-jobs
1616          */
1617         numjobs = o->numjobs;
1618         while (--numjobs) {
1619                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1620
1621                 if (!td_new)
1622                         goto err;
1623
1624                 td_new->o.numjobs = 1;
1625                 td_new->o.stonewall = 0;
1626                 td_new->o.new_group = 0;
1627                 td_new->subjob_number = numjobs;
1628                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1629                 td_new->o.ss_limit = o->ss_limit;
1630
1631                 if (file_alloced) {
1632                         if (td_new->files) {
1633                                 struct fio_file *f;
1634                                 for_each_file(td_new, f, i) {
1635                                         if (f->file_name)
1636                                                 sfree(f->file_name);
1637                                         sfree(f);
1638                                 }
1639                                 free(td_new->files);
1640                                 td_new->files = NULL;
1641                         }
1642                         td_new->files_index = 0;
1643                         td_new->files_size = 0;
1644                         if (td_new->o.filename) {
1645                                 free(td_new->o.filename);
1646                                 td_new->o.filename = NULL;
1647                         }
1648                 }
1649
1650                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1651                         goto err;
1652         }
1653
1654         return 0;
1655 err:
1656         put_job(td);
1657         return -1;
1658 }
1659
1660 /*
1661  * Parse as if 'o' was a command line
1662  */
1663 void add_job_opts(const char **o, int client_type)
1664 {
1665         struct thread_data *td, *td_parent;
1666         int i, in_global = 1;
1667         char jobname[32];
1668
1669         i = 0;
1670         td_parent = td = NULL;
1671         while (o[i]) {
1672                 if (!strncmp(o[i], "name", 4)) {
1673                         in_global = 0;
1674                         if (td)
1675                                 add_job(td, jobname, 0, 0, client_type);
1676                         td = NULL;
1677                         sprintf(jobname, "%s", o[i] + 5);
1678                 }
1679                 if (in_global && !td_parent)
1680                         td_parent = get_new_job(true, &def_thread, false, jobname);
1681                 else if (!in_global && !td) {
1682                         if (!td_parent)
1683                                 td_parent = &def_thread;
1684                         td = get_new_job(false, td_parent, false, jobname);
1685                 }
1686                 if (in_global)
1687                         fio_options_parse(td_parent, (char **) &o[i], 1);
1688                 else
1689                         fio_options_parse(td, (char **) &o[i], 1);
1690                 i++;
1691         }
1692
1693         if (td)
1694                 add_job(td, jobname, 0, 0, client_type);
1695 }
1696
1697 static int skip_this_section(const char *name)
1698 {
1699         int i;
1700
1701         if (!nr_job_sections)
1702                 return 0;
1703         if (!strncmp(name, "global", 6))
1704                 return 0;
1705
1706         for (i = 0; i < nr_job_sections; i++)
1707                 if (!strcmp(job_sections[i], name))
1708                         return 0;
1709
1710         return 1;
1711 }
1712
1713 static int is_empty_or_comment(char *line)
1714 {
1715         unsigned int i;
1716
1717         for (i = 0; i < strlen(line); i++) {
1718                 if (line[i] == ';')
1719                         return 1;
1720                 if (line[i] == '#')
1721                         return 1;
1722                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1723                         return 0;
1724         }
1725
1726         return 1;
1727 }
1728
1729 /*
1730  * This is our [ini] type file parser.
1731  */
1732 static int __parse_jobs_ini(struct thread_data *td,
1733                 char *file, int is_buf, int stonewall_flag, int type,
1734                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1735 {
1736         bool global = false;
1737         char *string;
1738         FILE *f;
1739         char *p;
1740         int ret = 0, stonewall;
1741         int first_sect = 1;
1742         int skip_fgets = 0;
1743         int inside_skip = 0;
1744         char **opts;
1745         int i, alloc_opts, num_opts;
1746
1747         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1748         assert(td || !nested);
1749
1750         if (is_buf)
1751                 f = NULL;
1752         else {
1753                 if (!strcmp(file, "-"))
1754                         f = stdin;
1755                 else
1756                         f = fopen(file, "r");
1757
1758                 if (!f) {
1759                         int __err = errno;
1760
1761                         log_err("fio: unable to open '%s' job file\n", file);
1762                         if (td)
1763                                 td_verror(td, __err, "job file open");
1764                         return 1;
1765                 }
1766         }
1767
1768         string = malloc(4096);
1769
1770         /*
1771          * it's really 256 + small bit, 280 should suffice
1772          */
1773         if (!nested) {
1774                 name = malloc(280);
1775                 memset(name, 0, 280);
1776         }
1777
1778         opts = NULL;
1779         if (nested && popts) {
1780                 opts = *popts;
1781                 alloc_opts = *aopts;
1782                 num_opts = *nopts;
1783         }
1784
1785         if (!opts) {
1786                 alloc_opts = 8;
1787                 opts = malloc(sizeof(char *) * alloc_opts);
1788                 num_opts = 0;
1789         }
1790
1791         stonewall = stonewall_flag;
1792         do {
1793                 /*
1794                  * if skip_fgets is set, we already have loaded a line we
1795                  * haven't handled.
1796                  */
1797                 if (!skip_fgets) {
1798                         if (is_buf)
1799                                 p = strsep(&file, "\n");
1800                         else
1801                                 p = fgets(string, 4096, f);
1802                         if (!p)
1803                                 break;
1804                 }
1805
1806                 skip_fgets = 0;
1807                 strip_blank_front(&p);
1808                 strip_blank_end(p);
1809
1810                 dprint(FD_PARSE, "%s\n", p);
1811                 if (is_empty_or_comment(p))
1812                         continue;
1813
1814                 if (!nested) {
1815                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1816                                 if (inside_skip)
1817                                         continue;
1818
1819                                 log_err("fio: option <%s> outside of "
1820                                         "[] job section\n", p);
1821                                 ret = 1;
1822                                 break;
1823                         }
1824
1825                         name[strlen(name) - 1] = '\0';
1826
1827                         if (skip_this_section(name)) {
1828                                 inside_skip = 1;
1829                                 continue;
1830                         } else
1831                                 inside_skip = 0;
1832
1833                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1834
1835                         global = !strncmp(name, "global", 6);
1836
1837                         if (dump_cmdline) {
1838                                 if (first_sect)
1839                                         log_info("fio ");
1840                                 if (!global)
1841                                         log_info("--name=%s ", name);
1842                                 first_sect = 0;
1843                         }
1844
1845                         td = get_new_job(global, &def_thread, false, name);
1846                         if (!td) {
1847                                 ret = 1;
1848                                 break;
1849                         }
1850
1851                         /*
1852                          * Separate multiple job files by a stonewall
1853                          */
1854                         if (!global && stonewall) {
1855                                 td->o.stonewall = stonewall;
1856                                 stonewall = 0;
1857                         }
1858
1859                         num_opts = 0;
1860                         memset(opts, 0, alloc_opts * sizeof(char *));
1861                 }
1862                 else
1863                         skip_fgets = 1;
1864
1865                 while (1) {
1866                         if (!skip_fgets) {
1867                                 if (is_buf)
1868                                         p = strsep(&file, "\n");
1869                                 else
1870                                         p = fgets(string, 4096, f);
1871                                 if (!p)
1872                                         break;
1873                                 dprint(FD_PARSE, "%s", p);
1874                         }
1875                         else
1876                                 skip_fgets = 0;
1877
1878                         if (is_empty_or_comment(p))
1879                                 continue;
1880
1881                         strip_blank_front(&p);
1882
1883                         /*
1884                          * new section, break out and make sure we don't
1885                          * fgets() a new line at the top.
1886                          */
1887                         if (p[0] == '[') {
1888                                 if (nested) {
1889                                         log_err("No new sections in included files\n");
1890                                         return 1;
1891                                 }
1892
1893                                 skip_fgets = 1;
1894                                 break;
1895                         }
1896
1897                         strip_blank_end(p);
1898
1899                         if (!strncmp(p, "include", strlen("include"))) {
1900                                 char *filename = p + strlen("include") + 1,
1901                                         *ts, *full_fn = NULL;
1902
1903                                 /*
1904                                  * Allow for the include filename
1905                                  * specification to be relative.
1906                                  */
1907                                 if (access(filename, F_OK) &&
1908                                     (ts = strrchr(file, '/'))) {
1909                                         int len = ts - file +
1910                                                 strlen(filename) + 2;
1911
1912                                         if (!(full_fn = calloc(1, len))) {
1913                                                 ret = ENOMEM;
1914                                                 break;
1915                                         }
1916
1917                                         strncpy(full_fn,
1918                                                 file, (ts - file) + 1);
1919                                         strncpy(full_fn + (ts - file) + 1,
1920                                                 filename, strlen(filename));
1921                                         full_fn[len - 1] = 0;
1922                                         filename = full_fn;
1923                                 }
1924
1925                                 ret = __parse_jobs_ini(td, filename, is_buf,
1926                                                        stonewall_flag, type, 1,
1927                                                        name, &opts,
1928                                                        &alloc_opts, &num_opts);
1929
1930                                 if (ret) {
1931                                         log_err("Error %d while parsing "
1932                                                 "include file %s\n",
1933                                                 ret, filename);
1934                                 }
1935
1936                                 if (full_fn)
1937                                         free(full_fn);
1938
1939                                 if (ret)
1940                                         break;
1941
1942                                 continue;
1943                         }
1944
1945                         if (num_opts == alloc_opts) {
1946                                 alloc_opts <<= 1;
1947                                 opts = realloc(opts,
1948                                                 alloc_opts * sizeof(char *));
1949                         }
1950
1951                         opts[num_opts] = strdup(p);
1952                         num_opts++;
1953                 }
1954
1955                 if (nested) {
1956                         *popts = opts;
1957                         *aopts = alloc_opts;
1958                         *nopts = num_opts;
1959                         goto out;
1960                 }
1961
1962                 ret = fio_options_parse(td, opts, num_opts);
1963                 if (!ret) {
1964                         if (dump_cmdline)
1965                                 dump_opt_list(td);
1966
1967                         ret = add_job(td, name, 0, 0, type);
1968                 } else {
1969                         log_err("fio: job %s dropped\n", name);
1970                         put_job(td);
1971                 }
1972
1973                 for (i = 0; i < num_opts; i++)
1974                         free(opts[i]);
1975                 num_opts = 0;
1976         } while (!ret);
1977
1978         if (dump_cmdline)
1979                 log_info("\n");
1980
1981         i = 0;
1982         while (i < nr_job_sections) {
1983                 free(job_sections[i]);
1984                 i++;
1985         }
1986
1987         free(opts);
1988 out:
1989         free(string);
1990         if (!nested)
1991                 free(name);
1992         if (!is_buf && f != stdin)
1993                 fclose(f);
1994         return ret;
1995 }
1996
1997 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1998 {
1999         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2000                         0, NULL, NULL, NULL, NULL);
2001 }
2002
2003 static int fill_def_thread(void)
2004 {
2005         memset(&def_thread, 0, sizeof(def_thread));
2006         INIT_FLIST_HEAD(&def_thread.opt_list);
2007
2008         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2009         def_thread.o.error_dump = 1;
2010
2011         /*
2012          * fill default options
2013          */
2014         fio_fill_default_options(&def_thread);
2015         return 0;
2016 }
2017
2018 static void show_debug_categories(void)
2019 {
2020 #ifdef FIO_INC_DEBUG
2021         struct debug_level *dl = &debug_levels[0];
2022         int curlen, first = 1;
2023
2024         curlen = 0;
2025         while (dl->name) {
2026                 int has_next = (dl + 1)->name != NULL;
2027
2028                 if (first || curlen + strlen(dl->name) >= 80) {
2029                         if (!first) {
2030                                 printf("\n");
2031                                 curlen = 0;
2032                         }
2033                         curlen += printf("\t\t\t%s", dl->name);
2034                         curlen += 3 * (8 - 1);
2035                         if (has_next)
2036                                 curlen += printf(",");
2037                 } else {
2038                         curlen += printf("%s", dl->name);
2039                         if (has_next)
2040                                 curlen += printf(",");
2041                 }
2042                 dl++;
2043                 first = 0;
2044         }
2045         printf("\n");
2046 #endif
2047 }
2048
2049 /*
2050  * Following options aren't printed by usage().
2051  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2052  * --latency-log - Deprecated option.
2053  */
2054 static void usage(const char *name)
2055 {
2056         printf("%s\n", fio_version_string);
2057         printf("%s [options] [job options] <job file(s)>\n", name);
2058         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2059         show_debug_categories();
2060         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2061         printf("  --output\t\tWrite output to file\n");
2062         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2063         printf("  --minimal\t\tMinimal (terse) output\n");
2064         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2065         printf("  --terse-version=type\tSet terse version output format"
2066                 " (default 3, or 2 or 4)\n");
2067         printf("  --version\t\tPrint version info and exit\n");
2068         printf("  --help\t\tPrint this page\n");
2069         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2070         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2071         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2072                 " them\n");
2073         printf("  --enghelp=engine\tPrint ioengine help, or list"
2074                 " available ioengines\n");
2075         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2076                 " cmd\n");
2077         printf("  --showcmd\t\tTurn a job file into command line options\n");
2078         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2079         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2080         printf("  --eta-newline=time\tForce a new line for every 'time'");
2081         printf(" period passed\n");
2082         printf("  --status-interval=t\tForce full status dump every");
2083         printf(" 't' period passed\n");
2084         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2085                 " writes\n");
2086         printf("  --section=name\tOnly run specified section in job file,"
2087                 " multiple sections can be specified\n");
2088         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2089                 " (def 16384)\n");
2090         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2091         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2092         printf("  --server=args\t\tStart a backend fio server\n");
2093         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2094         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2095         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2096         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2097                 "\t\t\t(option=system,percpu) or run unit work\n"
2098                 "\t\t\tcalibration only (option=calibrate)\n");
2099 #ifdef CONFIG_ZLIB
2100         printf("  --inflate-log=log\tInflate and output compressed log\n");
2101 #endif
2102         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2103         printf("  --trigger-timeout=t\tExecute trigger af this time\n");
2104         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2105         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2106         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2107         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
2108         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
2109         printf("\n                   Jens Axboe <axboe@fb.com>\n");
2110 }
2111
2112 #ifdef FIO_INC_DEBUG
2113 struct debug_level debug_levels[] = {
2114         { .name = "process",
2115           .help = "Process creation/exit logging",
2116           .shift = FD_PROCESS,
2117         },
2118         { .name = "file",
2119           .help = "File related action logging",
2120           .shift = FD_FILE,
2121         },
2122         { .name = "io",
2123           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2124           .shift = FD_IO,
2125         },
2126         { .name = "mem",
2127           .help = "Memory allocation/freeing logging",
2128           .shift = FD_MEM,
2129         },
2130         { .name = "blktrace",
2131           .help = "blktrace action logging",
2132           .shift = FD_BLKTRACE,
2133         },
2134         { .name = "verify",
2135           .help = "IO verification action logging",
2136           .shift = FD_VERIFY,
2137         },
2138         { .name = "random",
2139           .help = "Random generation logging",
2140           .shift = FD_RANDOM,
2141         },
2142         { .name = "parse",
2143           .help = "Parser logging",
2144           .shift = FD_PARSE,
2145         },
2146         { .name = "diskutil",
2147           .help = "Disk utility logging actions",
2148           .shift = FD_DISKUTIL,
2149         },
2150         { .name = "job",
2151           .help = "Logging related to creating/destroying jobs",
2152           .shift = FD_JOB,
2153         },
2154         { .name = "mutex",
2155           .help = "Mutex logging",
2156           .shift = FD_MUTEX
2157         },
2158         { .name = "profile",
2159           .help = "Logging related to profiles",
2160           .shift = FD_PROFILE,
2161         },
2162         { .name = "time",
2163           .help = "Logging related to time keeping functions",
2164           .shift = FD_TIME,
2165         },
2166         { .name = "net",
2167           .help = "Network logging",
2168           .shift = FD_NET,
2169         },
2170         { .name = "rate",
2171           .help = "Rate logging",
2172           .shift = FD_RATE,
2173         },
2174         { .name = "compress",
2175           .help = "Log compression logging",
2176           .shift = FD_COMPRESS,
2177         },
2178         { .name = "steadystate",
2179           .help = "Steady state detection logging",
2180           .shift = FD_STEADYSTATE,
2181         },
2182         { .name = "helperthread",
2183           .help = "Helper thread logging",
2184           .shift = FD_HELPERTHREAD,
2185         },
2186         { .name = NULL, },
2187 };
2188
2189 static int set_debug(const char *string)
2190 {
2191         struct debug_level *dl;
2192         char *p = (char *) string;
2193         char *opt;
2194         int i;
2195
2196         if (!string)
2197                 return 0;
2198
2199         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2200                 log_info("fio: dumping debug options:");
2201                 for (i = 0; debug_levels[i].name; i++) {
2202                         dl = &debug_levels[i];
2203                         log_info("%s,", dl->name);
2204                 }
2205                 log_info("all\n");
2206                 return 1;
2207         }
2208
2209         while ((opt = strsep(&p, ",")) != NULL) {
2210                 int found = 0;
2211
2212                 if (!strncmp(opt, "all", 3)) {
2213                         log_info("fio: set all debug options\n");
2214                         fio_debug = ~0UL;
2215                         continue;
2216                 }
2217
2218                 for (i = 0; debug_levels[i].name; i++) {
2219                         dl = &debug_levels[i];
2220                         found = !strncmp(opt, dl->name, strlen(dl->name));
2221                         if (!found)
2222                                 continue;
2223
2224                         if (dl->shift == FD_JOB) {
2225                                 opt = strchr(opt, ':');
2226                                 if (!opt) {
2227                                         log_err("fio: missing job number\n");
2228                                         break;
2229                                 }
2230                                 opt++;
2231                                 fio_debug_jobno = atoi(opt);
2232                                 log_info("fio: set debug jobno %d\n",
2233                                                         fio_debug_jobno);
2234                         } else {
2235                                 log_info("fio: set debug option %s\n", opt);
2236                                 fio_debug |= (1UL << dl->shift);
2237                         }
2238                         break;
2239                 }
2240
2241                 if (!found)
2242                         log_err("fio: debug mask %s not found\n", opt);
2243         }
2244         return 0;
2245 }
2246 #else
2247 static int set_debug(const char *string)
2248 {
2249         log_err("fio: debug tracing not included in build\n");
2250         return 1;
2251 }
2252 #endif
2253
2254 static void fio_options_fill_optstring(void)
2255 {
2256         char *ostr = cmd_optstr;
2257         int i, c;
2258
2259         c = i = 0;
2260         while (l_opts[i].name) {
2261                 ostr[c++] = l_opts[i].val;
2262                 if (l_opts[i].has_arg == required_argument)
2263                         ostr[c++] = ':';
2264                 else if (l_opts[i].has_arg == optional_argument) {
2265                         ostr[c++] = ':';
2266                         ostr[c++] = ':';
2267                 }
2268                 i++;
2269         }
2270         ostr[c] = '\0';
2271 }
2272
2273 static int client_flag_set(char c)
2274 {
2275         int i;
2276
2277         i = 0;
2278         while (l_opts[i].name) {
2279                 int val = l_opts[i].val;
2280
2281                 if (c == (val & 0xff))
2282                         return (val & FIO_CLIENT_FLAG);
2283
2284                 i++;
2285         }
2286
2287         return 0;
2288 }
2289
2290 static void parse_cmd_client(void *client, char *opt)
2291 {
2292         fio_client_add_cmd_option(client, opt);
2293 }
2294
2295 static void show_closest_option(const char *name)
2296 {
2297         int best_option, best_distance;
2298         int i, distance;
2299
2300         while (*name == '-')
2301                 name++;
2302
2303         best_option = -1;
2304         best_distance = INT_MAX;
2305         i = 0;
2306         while (l_opts[i].name) {
2307                 distance = string_distance(name, l_opts[i].name);
2308                 if (distance < best_distance) {
2309                         best_distance = distance;
2310                         best_option = i;
2311                 }
2312                 i++;
2313         }
2314
2315         if (best_option != -1 && string_distance_ok(name, best_distance))
2316                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2317 }
2318
2319 static int parse_output_format(const char *optarg)
2320 {
2321         char *p, *orig, *opt;
2322         int ret = 0;
2323
2324         p = orig = strdup(optarg);
2325
2326         output_format = 0;
2327
2328         while ((opt = strsep(&p, ",")) != NULL) {
2329                 if (!strcmp(opt, "minimal") ||
2330                     !strcmp(opt, "terse") ||
2331                     !strcmp(opt, "csv"))
2332                         output_format |= FIO_OUTPUT_TERSE;
2333                 else if (!strcmp(opt, "json"))
2334                         output_format |= FIO_OUTPUT_JSON;
2335                 else if (!strcmp(opt, "json+"))
2336                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2337                 else if (!strcmp(opt, "normal"))
2338                         output_format |= FIO_OUTPUT_NORMAL;
2339                 else {
2340                         log_err("fio: invalid output format %s\n", opt);
2341                         ret = 1;
2342                         break;
2343                 }
2344         }
2345
2346         free(orig);
2347         return ret;
2348 }
2349
2350 int parse_cmd_line(int argc, char *argv[], int client_type)
2351 {
2352         struct thread_data *td = NULL;
2353         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2354         char *ostr = cmd_optstr;
2355         char *pid_file = NULL;
2356         void *cur_client = NULL;
2357         int backend = 0;
2358
2359         /*
2360          * Reset optind handling, since we may call this multiple times
2361          * for the backend.
2362          */
2363         optind = 1;
2364
2365         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2366                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2367                         parse_cmd_client(cur_client, argv[optind - 1]);
2368                         c &= ~FIO_CLIENT_FLAG;
2369                 }
2370
2371                 switch (c) {
2372                 case 'a':
2373                         smalloc_pool_size = atoi(optarg);
2374                         smalloc_pool_size <<= 10;
2375                         sinit();
2376                         break;
2377                 case 'l':
2378                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2379                         do_exit++;
2380                         exit_val = 1;
2381                         break;
2382                 case 'b':
2383                         write_bw_log = 1;
2384                         break;
2385                 case 'o': {
2386                         FILE *tmp;
2387
2388                         if (f_out && f_out != stdout)
2389                                 fclose(f_out);
2390
2391                         tmp = fopen(optarg, "w+");
2392                         if (!tmp) {
2393                                 log_err("fio: output file open error: %s\n", strerror(errno));
2394                                 exit_val = 1;
2395                                 do_exit++;
2396                                 break;
2397                         }
2398                         f_err = f_out = tmp;
2399                         break;
2400                         }
2401                 case 'm':
2402                         output_format = FIO_OUTPUT_TERSE;
2403                         break;
2404                 case 'F':
2405                         if (parse_output_format(optarg)) {
2406                                 log_err("fio: failed parsing output-format\n");
2407                                 exit_val = 1;
2408                                 do_exit++;
2409                                 break;
2410                         }
2411                         break;
2412                 case 'f':
2413                         output_format |= FIO_OUTPUT_TERSE;
2414                         break;
2415                 case 'h':
2416                         did_arg = 1;
2417                         if (!cur_client) {
2418                                 usage(argv[0]);
2419                                 do_exit++;
2420                         }
2421                         break;
2422                 case 'c':
2423                         did_arg = 1;
2424                         if (!cur_client) {
2425                                 fio_show_option_help(optarg);
2426                                 do_exit++;
2427                         }
2428                         break;
2429                 case 'i':
2430                         did_arg = 1;
2431                         if (!cur_client) {
2432                                 fio_show_ioengine_help(optarg);
2433                                 do_exit++;
2434                         }
2435                         break;
2436                 case 's':
2437                         did_arg = 1;
2438                         dump_cmdline = 1;
2439                         break;
2440                 case 'r':
2441                         read_only = 1;
2442                         break;
2443                 case 'v':
2444                         did_arg = 1;
2445                         if (!cur_client) {
2446                                 log_info("%s\n", fio_version_string);
2447                                 do_exit++;
2448                         }
2449                         break;
2450                 case 'V':
2451                         terse_version = atoi(optarg);
2452                         if (!(terse_version >= 2 && terse_version <= 5)) {
2453                                 log_err("fio: bad terse version format\n");
2454                                 exit_val = 1;
2455                                 do_exit++;
2456                         }
2457                         break;
2458                 case 'e':
2459                         if (!strcmp("always", optarg))
2460                                 eta_print = FIO_ETA_ALWAYS;
2461                         else if (!strcmp("never", optarg))
2462                                 eta_print = FIO_ETA_NEVER;
2463                         break;
2464                 case 'E': {
2465                         long long t = 0;
2466
2467                         if (check_str_time(optarg, &t, 1)) {
2468                                 log_err("fio: failed parsing eta time %s\n", optarg);
2469                                 exit_val = 1;
2470                                 do_exit++;
2471                         }
2472                         eta_new_line = t / 1000;
2473                         break;
2474                         }
2475                 case 'd':
2476                         if (set_debug(optarg))
2477                                 do_exit++;
2478                         break;
2479                 case 'P':
2480                         did_arg = 1;
2481                         parse_only = 1;
2482                         break;
2483                 case 'x': {
2484                         size_t new_size;
2485
2486                         if (!strcmp(optarg, "global")) {
2487                                 log_err("fio: can't use global as only "
2488                                         "section\n");
2489                                 do_exit++;
2490                                 exit_val = 1;
2491                                 break;
2492                         }
2493                         new_size = (nr_job_sections + 1) * sizeof(char *);
2494                         job_sections = realloc(job_sections, new_size);
2495                         job_sections[nr_job_sections] = strdup(optarg);
2496                         nr_job_sections++;
2497                         break;
2498                         }
2499 #ifdef CONFIG_ZLIB
2500                 case 'X':
2501                         exit_val = iolog_file_inflate(optarg);
2502                         did_arg++;
2503                         do_exit++;
2504                         break;
2505 #endif
2506                 case 'p':
2507                         did_arg = 1;
2508                         if (exec_profile)
2509                                 free(exec_profile);
2510                         exec_profile = strdup(optarg);
2511                         break;
2512                 case FIO_GETOPT_JOB: {
2513                         const char *opt = l_opts[lidx].name;
2514                         char *val = optarg;
2515
2516                         if (!strncmp(opt, "name", 4) && td) {
2517                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2518                                 if (ret)
2519                                         goto out_free;
2520                                 td = NULL;
2521                                 did_arg = 1;
2522                         }
2523                         if (!td) {
2524                                 int is_section = !strncmp(opt, "name", 4);
2525                                 int global = 0;
2526
2527                                 if (!is_section || !strncmp(val, "global", 6))
2528                                         global = 1;
2529
2530                                 if (is_section && skip_this_section(val))
2531                                         continue;
2532
2533                                 td = get_new_job(global, &def_thread, true, NULL);
2534                                 if (!td || ioengine_load(td)) {
2535                                         if (td) {
2536                                                 put_job(td);
2537                                                 td = NULL;
2538                                         }
2539                                         do_exit++;
2540                                         exit_val = 1;
2541                                         break;
2542                                 }
2543                                 fio_options_set_ioengine_opts(l_opts, td);
2544                         }
2545
2546                         if ((!val || !strlen(val)) &&
2547                             l_opts[lidx].has_arg == required_argument) {
2548                                 log_err("fio: option %s requires an argument\n", opt);
2549                                 ret = 1;
2550                         } else
2551                                 ret = fio_cmd_option_parse(td, opt, val);
2552
2553                         if (ret) {
2554                                 if (td) {
2555                                         put_job(td);
2556                                         td = NULL;
2557                                 }
2558                                 do_exit++;
2559                                 exit_val = 1;
2560                         }
2561
2562                         if (!ret && !strcmp(opt, "ioengine")) {
2563                                 if (ioengine_load(td)) {
2564                                         put_job(td);
2565                                         td = NULL;
2566                                         do_exit++;
2567                                         exit_val = 1;
2568                                         break;
2569                                 }
2570                                 fio_options_set_ioengine_opts(l_opts, td);
2571                         }
2572                         break;
2573                 }
2574                 case FIO_GETOPT_IOENGINE: {
2575                         const char *opt = l_opts[lidx].name;
2576                         char *val = optarg;
2577
2578                         if (!td)
2579                                 break;
2580
2581                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2582                         break;
2583                 }
2584                 case 'w':
2585                         warnings_fatal = 1;
2586                         break;
2587                 case 'j':
2588                         max_jobs = atoi(optarg);
2589                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2590                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2591                                 do_exit++;
2592                                 exit_val = 1;
2593                         }
2594                         break;
2595                 case 'S':
2596                         did_arg = 1;
2597 #ifndef CONFIG_NO_SHM
2598                         if (nr_clients) {
2599                                 log_err("fio: can't be both client and server\n");
2600                                 do_exit++;
2601                                 exit_val = 1;
2602                                 break;
2603                         }
2604                         if (optarg)
2605                                 fio_server_set_arg(optarg);
2606                         is_backend = 1;
2607                         backend = 1;
2608 #else
2609                         log_err("fio: client/server requires SHM support\n");
2610                         do_exit++;
2611                         exit_val = 1;
2612 #endif
2613                         break;
2614                 case 'D':
2615                         if (pid_file)
2616                                 free(pid_file);
2617                         pid_file = strdup(optarg);
2618                         break;
2619                 case 'I':
2620                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2621                                 /* exit on error and calibration only */
2622                                 did_arg = 1;
2623                                 do_exit++;
2624                                 if (ret == -1)
2625                                         exit_val = 1;
2626                         }
2627                         break;
2628                 case 'C':
2629                         did_arg = 1;
2630                         if (is_backend) {
2631                                 log_err("fio: can't be both client and server\n");
2632                                 do_exit++;
2633                                 exit_val = 1;
2634                                 break;
2635                         }
2636                         /* if --client parameter contains a pathname */
2637                         if (0 == access(optarg, R_OK)) {
2638                                 /* file contains a list of host addrs or names */
2639                                 char hostaddr[PATH_MAX] = {0};
2640                                 char formatstr[8];
2641                                 FILE * hostf = fopen(optarg, "r");
2642                                 if (!hostf) {
2643                                         log_err("fio: could not open client list file %s for read\n", optarg);
2644                                         do_exit++;
2645                                         exit_val = 1;
2646                                         break;
2647                                 }
2648                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2649                                 /*
2650                                  * read at most PATH_MAX-1 chars from each
2651                                  * record in this file
2652                                  */
2653                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2654                                         /* expect EVERY host in file to be valid */
2655                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2656                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2657                                                 do_exit++;
2658                                                 exit_val = 1;
2659                                                 break;
2660                                         }
2661                                 }
2662                                 fclose(hostf);
2663                                 break; /* no possibility of job file for "this client only" */
2664                         }
2665                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2666                                 log_err("fio: failed adding client %s\n", optarg);
2667                                 do_exit++;
2668                                 exit_val = 1;
2669                                 break;
2670                         }
2671                         /*
2672                          * If the next argument exists and isn't an option,
2673                          * assume it's a job file for this client only.
2674                          */
2675                         while (optind < argc) {
2676                                 if (!strncmp(argv[optind], "--", 2) ||
2677                                     !strncmp(argv[optind], "-", 1))
2678                                         break;
2679
2680                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2681                                         break;
2682                                 optind++;
2683                         }
2684                         break;
2685                 case 'R':
2686                         did_arg = 1;
2687                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2688                                 do_exit++;
2689                                 exit_val = 1;
2690                         }
2691                         break;
2692                 case 'T':
2693                         did_arg = 1;
2694                         do_exit++;
2695                         exit_val = fio_monotonic_clocktest(1);
2696                         break;
2697                 case 'G':
2698                         did_arg = 1;
2699                         do_exit++;
2700                         exit_val = fio_crctest(optarg);
2701                         break;
2702                 case 'L': {
2703                         long long val;
2704
2705                         if (check_str_time(optarg, &val, 1)) {
2706                                 log_err("fio: failed parsing time %s\n", optarg);
2707                                 do_exit++;
2708                                 exit_val = 1;
2709                                 break;
2710                         }
2711                         status_interval = val / 1000;
2712                         break;
2713                         }
2714                 case 'W':
2715                         if (trigger_file)
2716                                 free(trigger_file);
2717                         trigger_file = strdup(optarg);
2718                         break;
2719                 case 'H':
2720                         if (trigger_cmd)
2721                                 free(trigger_cmd);
2722                         trigger_cmd = strdup(optarg);
2723                         break;
2724                 case 'J':
2725                         if (trigger_remote_cmd)
2726                                 free(trigger_remote_cmd);
2727                         trigger_remote_cmd = strdup(optarg);
2728                         break;
2729                 case 'K':
2730                         if (aux_path)
2731                                 free(aux_path);
2732                         aux_path = strdup(optarg);
2733                         break;
2734                 case 'B':
2735                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2736                                 log_err("fio: failed parsing time %s\n", optarg);
2737                                 do_exit++;
2738                                 exit_val = 1;
2739                         }
2740                         trigger_timeout /= 1000000;
2741                         break;
2742                 case '?':
2743                         log_err("%s: unrecognized option '%s'\n", argv[0],
2744                                                         argv[optind - 1]);
2745                         show_closest_option(argv[optind - 1]);
2746                 default:
2747                         do_exit++;
2748                         exit_val = 1;
2749                         break;
2750                 }
2751                 if (do_exit)
2752                         break;
2753         }
2754
2755         if (do_exit && !(is_backend || nr_clients))
2756                 exit(exit_val);
2757
2758         if (nr_clients && fio_clients_connect())
2759                 exit(1);
2760
2761         if (is_backend && backend)
2762                 return fio_start_server(pid_file);
2763         else if (pid_file)
2764                 free(pid_file);
2765
2766         if (td) {
2767                 if (!ret) {
2768                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2769                         if (ret)
2770                                 exit(1);
2771                 }
2772         }
2773
2774         while (!ret && optind < argc) {
2775                 ini_idx++;
2776                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2777                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2778                 optind++;
2779         }
2780
2781 out_free:
2782         return ini_idx;
2783 }
2784
2785 int fio_init_options(void)
2786 {
2787         f_out = stdout;
2788         f_err = stderr;
2789
2790         fio_options_fill_optstring();
2791         fio_options_dup_and_init(l_opts);
2792
2793         atexit(free_shm);
2794
2795         if (fill_def_thread())
2796                 return 1;
2797
2798         return 0;
2799 }
2800
2801 extern int fio_check_options(struct thread_options *);
2802
2803 int parse_options(int argc, char *argv[])
2804 {
2805         const int type = FIO_CLIENT_TYPE_CLI;
2806         int job_files, i;
2807
2808         if (fio_init_options())
2809                 return 1;
2810         if (fio_test_cconv(&def_thread.o))
2811                 log_err("fio: failed internal cconv test\n");
2812
2813         job_files = parse_cmd_line(argc, argv, type);
2814
2815         if (job_files > 0) {
2816                 for (i = 0; i < job_files; i++) {
2817                         if (i && fill_def_thread())
2818                                 return 1;
2819                         if (nr_clients) {
2820                                 if (fio_clients_send_ini(ini_file[i]))
2821                                         return 1;
2822                                 free(ini_file[i]);
2823                         } else if (!is_backend) {
2824                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2825                                         return 1;
2826                                 free(ini_file[i]);
2827                         }
2828                 }
2829         } else if (nr_clients) {
2830                 if (fill_def_thread())
2831                         return 1;
2832                 if (fio_clients_send_ini(NULL))
2833                         return 1;
2834         }
2835
2836         free(ini_file);
2837         fio_options_free(&def_thread);
2838         filesetup_mem_free();
2839
2840         if (!thread_number) {
2841                 if (parse_dryrun())
2842                         return 0;
2843                 if (exec_profile)
2844                         return 0;
2845                 if (is_backend || nr_clients)
2846                         return 0;
2847                 if (did_arg)
2848                         return 0;
2849
2850                 log_err("No job(s) defined\n\n");
2851
2852                 if (!did_arg) {
2853                         usage(argv[0]);
2854                         return 1;
2855                 }
2856
2857                 return 0;
2858         }
2859
2860         if (output_format & FIO_OUTPUT_NORMAL)
2861                 log_info("%s\n", fio_version_string);
2862
2863         return 0;
2864 }
2865
2866 void options_default_fill(struct thread_options *o)
2867 {
2868         memcpy(o, &def_thread.o, sizeof(*o));
2869 }
2870
2871 struct thread_data *get_global_options(void)
2872 {
2873         return &def_thread;
2874 }