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 <getopt.h>
  12 #include <sys/ipc.h>
  13 #include <sys/shm.h>
  14 #include <sys/types.h>
  15 #include <sys/stat.h>
  16
  17 #include "fio.h"
  18 #include "parse.h"
  19
  20 static char fio_version_string[] = "fio 1.14a";
  21
  22 #define FIO_RANDSEED            (0xb1899bedUL)
  23
  24 static char **ini_file;
  25 static int max_jobs = MAX_JOBS;
  26
  27 struct thread_data def_thread;
  28 struct thread_data *threads = NULL;
  29
  30 int exitall_on_terminate = 0;
  31 int terse_output = 0;
  32 unsigned long long mlock_size = 0;
  33 FILE *f_out = NULL;
  34 FILE *f_err = NULL;
  35
  36 int write_bw_log = 0;
  37
  38 static int def_timeout = 0;
  39 static int write_lat_log = 0;
  40
  41 static int prev_group_jobs;
  42
  43 /*
  44  * Command line options. These will contain the above, plus a few
  45  * extra that only pertain to fio itself and not jobs.
  46  */
  47 static struct option long_options[FIO_NR_OPTIONS] = {
  48         {
  49                 .name           = "output",
  50                 .has_arg        = required_argument,
  51                 .val            = 'o',
  52         },
  53         {
  54                 .name           = "timeout",
  55                 .has_arg        = required_argument,
  56                 .val            = 't',
  57         },
  58         {
  59                 .name           = "latency-log",
  60                 .has_arg        = required_argument,
  61                 .val            = 'l',
  62         },
  63         {
  64                 .name           = "bandwidth-log",
  65                 .has_arg        = required_argument,
  66                 .val            = 'b',
  67         },
  68         {
  69                 .name           = "minimal",
  70                 .has_arg        = optional_argument,
  71                 .val            = 'm',
  72         },
  73         {
  74                 .name           = "version",
  75                 .has_arg        = no_argument,
  76                 .val            = 'v',
  77         },
  78         {
  79                 .name           = "help",
  80                 .has_arg        = no_argument,
  81                 .val            = 'h',
  82         },
  83         {
  84                 .name           = "cmdhelp",
  85                 .has_arg        = optional_argument,
  86                 .val            = 'c',
  87         },
  88         {
  89                 .name           = NULL,
  90         },
  91 };
  92
  93 FILE *get_f_out()
  94 {
  95         return f_out;
  96 }
  97
  98 FILE *get_f_err()
  99 {
 100         return f_err;
 101 }
 102
 103 /*
 104  * Return a free job structure.
 105  */
 106 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 107 {
 108         struct thread_data *td;
 109
 110         if (global)
 111                 return &def_thread;
 112         if (thread_number >= max_jobs)
 113                 return NULL;
 114
 115         td = &threads[thread_number++];
 116         *td = *parent;
 117
 118         td->thread_number = thread_number;
 119         return td;
 120 }
 121
 122 static void put_job(struct thread_data *td)
 123 {
 124         if (td == &def_thread)
 125                 return;
 126
 127         if (td->error)
 128                 log_info("fio: %s\n", td->verror);
 129
 130         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 131         thread_number--;
 132 }
 133
 134 static int setup_rate(struct thread_data *td)
 135 {
 136         unsigned long nr_reads_per_msec;
 137         unsigned long long rate;
 138         unsigned int bs;
 139
 140         if (!td->o.rate && !td->o.rate_iops)
 141                 return 0;
 142
 143         if (td_rw(td))
 144                 bs = td->o.rw_min_bs;
 145         else if (td_read(td))
 146                 bs = td->o.min_bs[DDIR_READ];
 147         else
 148                 bs = td->o.min_bs[DDIR_WRITE];
 149
 150         if (td->o.rate) {
 151                 rate = td->o.rate;
 152                 nr_reads_per_msec = (rate * 1024 * 1000LL) / bs;
 153         } else
 154                 nr_reads_per_msec = td->o.rate_iops * 1000UL;
 155
 156         if (!nr_reads_per_msec) {
 157                 log_err("rate lower than supported\n");
 158                 return -1;
 159         }
 160
 161         td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec;
 162         td->rate_pending_usleep = 0;
 163         return 0;
 164 }
 165
 166 /*
 167  * Lazy way of fixing up options that depend on each other. We could also
 168  * define option callback handlers, but this is easier.
 169  */
 170 static int fixup_options(struct thread_data *td)
 171 {
 172         struct thread_options *o = &td->o;
 173
 174         if (!o->rwmixread && o->rwmixwrite)
 175                 o->rwmixread = 100 - o->rwmixwrite;
 176
 177         if (o->write_iolog_file && o->read_iolog_file) {
 178                 log_err("fio: read iolog overrides write_iolog\n");
 179                 free(o->write_iolog_file);
 180                 o->write_iolog_file = NULL;
 181         }
 182
 183         if (td->io_ops->flags & FIO_SYNCIO)
 184                 o->iodepth = 1;
 185         else {
 186                 if (!o->iodepth)
 187                         o->iodepth = o->open_files;
 188         }
 189
 190         /*
 191          * only really works for sequential io for now, and with 1 file
 192          */
 193         if (o->zone_size && td_random(td) && o->open_files == 1)
 194                 o->zone_size = 0;
 195
 196         /*
 197          * Reads can do overwrites, we always need to pre-create the file
 198          */
 199         if (td_read(td) || td_rw(td))
 200                 o->overwrite = 1;
 201
 202         if (!o->min_bs[DDIR_READ])
 203                 o->min_bs[DDIR_READ]= o->bs[DDIR_READ];
 204         if (!o->max_bs[DDIR_READ])
 205                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 206         if (!o->min_bs[DDIR_WRITE])
 207                 o->min_bs[DDIR_WRITE]= o->bs[DDIR_WRITE];
 208         if (!o->max_bs[DDIR_WRITE])
 209                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 210
 211         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 212
 213         if (!o->file_size_high)
 214                 o->file_size_high = o->file_size_low;
 215
 216         if (td_read(td) && !td_rw(td))
 217                 o->verify = 0;
 218
 219         if (o->norandommap && o->verify != VERIFY_NONE) {
 220                 log_err("fio: norandommap given, verify disabled\n");
 221                 o->verify = VERIFY_NONE;
 222         }
 223         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 224                 log_err("fio: bs_unaligned may not work with raw io\n");
 225
 226         /*
 227          * thinktime_spin must be less than thinktime
 228          */
 229         if (o->thinktime_spin > o->thinktime)
 230                 o->thinktime_spin = o->thinktime;
 231
 232         /*
 233          * The low water mark cannot be bigger than the iodepth
 234          */
 235         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 236                 /*
 237                  * syslet work around - if the workload is sequential,
 238                  * we want to let the queue drain all the way down to
 239                  * avoid seeking between async threads
 240                  */
 241                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 242                         o->iodepth_low = 1;
 243                 else
 244                         o->iodepth_low = o->iodepth;
 245         }
 246
 247         /*
 248          * If batch number isn't set, default to the same as iodepth
 249          */
 250         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 251                 o->iodepth_batch = o->iodepth;
 252
 253         if (o->nr_files > td->files_index)
 254                 o->nr_files = td->files_index;
 255
 256         if (o->open_files > o->nr_files || !o->open_files)
 257                 o->open_files = o->nr_files;
 258
 259         if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) {
 260                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 261                 return 1;
 262         }
 263         if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) {
 264                 log_err("fio: minimum rate exceeds rate\n");
 265                 return 1;
 266         }
 267
 268         return 0;
 269 }
 270
 271 /*
 272  * This function leaks the buffer
 273  */
 274 static char *to_kmg(unsigned int val)
 275 {
 276         char *buf = malloc(32);
 277         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 278         char *p = post;
 279
 280         do {
 281                 if (val & 1023)
 282                         break;
 283
 284                 val >>= 10;
 285                 p++;
 286         } while (*p);
 287
 288         snprintf(buf, 31, "%u%c", val, *p);
 289         return buf;
 290 }
 291
 292 /* External engines are specified by "external:name.o") */
 293 static const char *get_engine_name(const char *str)
 294 {
 295         char *p = strstr(str, ":");
 296
 297         if (!p)
 298                 return str;
 299
 300         p++;
 301         strip_blank_front(&p);
 302         strip_blank_end(p);
 303         return p;
 304 }
 305
 306 static int exists_and_not_file(const char *filename)
 307 {
 308         struct stat sb;
 309
 310         if (lstat(filename, &sb) == -1)
 311                 return 0;
 312
 313         if (S_ISREG(sb.st_mode))
 314                 return 0;
 315
 316         return 1;
 317 }
 318
 319 /*
 320  * Initialize the various random states we need (random io, block size ranges,
 321  * read/write mix, etc).
 322  */
 323 static int init_random_state(struct thread_data *td)
 324 {
 325         unsigned long seeds[6];
 326         int fd;
 327
 328         fd = open("/dev/urandom", O_RDONLY);
 329         if (fd == -1) {
 330                 td_verror(td, errno, "open");
 331                 return 1;
 332         }
 333
 334         if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
 335                 td_verror(td, EIO, "read");
 336                 close(fd);
 337                 return 1;
 338         }
 339
 340         close(fd);
 341
 342         os_random_seed(seeds[0], &td->bsrange_state);
 343         os_random_seed(seeds[1], &td->verify_state);
 344         os_random_seed(seeds[2], &td->rwmix_state);
 345
 346         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 347                 os_random_seed(seeds[3], &td->next_file_state);
 348
 349         os_random_seed(seeds[5], &td->file_size_state);
 350
 351         if (!td_random(td))
 352                 return 0;
 353
 354         if (td->o.rand_repeatable)
 355                 seeds[4] = FIO_RANDSEED * td->thread_number;
 356
 357         os_random_seed(seeds[4], &td->random_state);
 358         return 0;
 359 }
 360
 361
 362 /*
 363  * Adds a job to the list of things todo. Sanitizes the various options
 364  * to make sure we don't have conflicts, and initializes various
 365  * members of td.
 366  */
 367 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 368 {
 369         const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
 370                                    "randread", "randwrite", "randrw" };
 371         unsigned int i;
 372         struct fio_file *f;
 373         const char *engine;
 374         char fname[PATH_MAX];
 375         int numjobs, file_alloced;
 376
 377         /*
 378          * the def_thread is just for options, it's not a real job
 379          */
 380         if (td == &def_thread)
 381                 return 0;
 382
 383         engine = get_engine_name(td->o.ioengine);
 384         td->io_ops = load_ioengine(td, engine);
 385         if (!td->io_ops) {
 386                 log_err("fio: failed to load engine %s\n", engine);
 387                 goto err;
 388         }
 389
 390         if (td->o.use_thread)
 391                 nr_thread++;
 392         else
 393                 nr_process++;
 394
 395         if (td->o.odirect)
 396                 td->io_ops->flags |= FIO_RAWIO;
 397
 398         file_alloced = 0;
 399         if (!td->o.filename && !td->files_index) {
 400                 file_alloced = 1;
 401
 402                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 403                         add_file(td, jobname);
 404                 else {
 405                         for (i = 0; i < td->o.nr_files; i++) {
 406                                 sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i);
 407                                 add_file(td, fname);
 408                         }
 409                 }
 410         }
 411
 412         if (fixup_options(td))
 413                 goto err;
 414
 415         for_each_file(td, f, i) {
 416                 if (td->o.directory && f->filetype == FIO_TYPE_FILE) {
 417                         sprintf(fname, "%s/%s", td->o.directory, f->file_name);
 418                         f->file_name = strdup(fname);
 419                 }
 420         }
 421
 422         td->mutex = fio_sem_init(0);
 423
 424         td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
 425         td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
 426         td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 427
 428         if ((td->o.stonewall || td->o.numjobs > 1) && prev_group_jobs) {
 429                 prev_group_jobs = 0;
 430                 groupid++;
 431         }
 432
 433         td->groupid = groupid;
 434         prev_group_jobs++;
 435
 436         if (init_random_state(td))
 437                 goto err;
 438
 439         if (setup_rate(td))
 440                 goto err;
 441
 442         if (td->o.write_lat_log) {
 443                 setup_log(&td->ts.slat_log);
 444                 setup_log(&td->ts.clat_log);
 445         }
 446         if (td->o.write_bw_log)
 447                 setup_log(&td->ts.bw_log);
 448
 449         if (!td->o.name)
 450                 td->o.name = strdup(jobname);
 451
 452         if (!terse_output) {
 453                 if (!job_add_num) {
 454                         if (!strcmp(td->io_ops->name, "cpuio"))
 455                                 log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->o.name, td->o.cpuload, td->o.cpucycle);
 456                         else {
 457                                 char *c1, *c2, *c3, *c4;
 458
 459                                 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
 460                                 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
 461                                 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
 462                                 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 463
 464                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->o.name, td->groupid, ddir_str[td->o.td_ddir], c1, c2, c3, c4, td->io_ops->name, td->o.iodepth);
 465
 466                                 free(c1);
 467                                 free(c2);
 468                                 free(c3);
 469                                 free(c4);
 470                         }
 471                 } else if (job_add_num == 1)
 472                         log_info("...\n");
 473         }
 474
 475         /*
 476          * recurse add identical jobs, clear numjobs and stonewall options
 477          * as they don't apply to sub-jobs
 478          */
 479         numjobs = td->o.numjobs;
 480         while (--numjobs) {
 481                 struct thread_data *td_new = get_new_job(0, td);
 482
 483                 if (!td_new)
 484                         goto err;
 485
 486                 td_new->o.numjobs = 1;
 487                 td_new->o.stonewall = 0;
 488
 489                 if (file_alloced) {
 490                         td_new->o.filename = NULL;
 491                         td_new->files_index = 0;
 492                         td_new->files = NULL;
 493                 }
 494
 495                 job_add_num = numjobs - 1;
 496
 497                 if (add_job(td_new, jobname, job_add_num))
 498                         goto err;
 499         }
 500
 501         if (td->o.numjobs > 1) {
 502                 groupid++;
 503                 prev_group_jobs = 0;
 504         }
 505
 506         return 0;
 507 err:
 508         put_job(td);
 509         return -1;
 510 }
 511
 512 static int is_empty_or_comment(char *line)
 513 {
 514         unsigned int i;
 515
 516         for (i = 0; i < strlen(line); i++) {
 517                 if (line[i] == ';')
 518                         return 1;
 519                 if (line[i] == '#')
 520                         return 1;
 521                 if (!isspace(line[i]) && !iscntrl(line[i]))
 522                         return 0;
 523         }
 524
 525         return 1;
 526 }
 527
 528 /*
 529  * This is our [ini] type file parser.
 530  */
 531 static int parse_jobs_ini(char *file, int stonewall_flag)
 532 {
 533         unsigned int global;
 534         struct thread_data *td;
 535         char *string, *name;
 536         fpos_t off;
 537         FILE *f;
 538         char *p;
 539         int ret = 0, stonewall;
 540
 541         f = fopen(file, "r");
 542         if (!f) {
 543                 perror("fopen job file");
 544                 return 1;
 545         }
 546
 547         string = malloc(4096);
 548         name = malloc(256);
 549         memset(name, 0, 256);
 550
 551         stonewall = stonewall_flag;
 552         do {
 553                 p = fgets(string, 4095, f);
 554                 if (!p)
 555                         break;
 556                 if (is_empty_or_comment(p))
 557                         continue;
 558                 if (sscanf(p, "[%255s]", name) != 1)
 559                         continue;
 560
 561                 global = !strncmp(name, "global", 6);
 562
 563                 name[strlen(name) - 1] = '\0';
 564
 565                 td = get_new_job(global, &def_thread);
 566                 if (!td) {
 567                         ret = 1;
 568                         break;
 569                 }
 570
 571                 /*
 572                  * Seperate multiple job files by a stonewall
 573                  */
 574                 if (!global && stonewall) {
 575                         td->o.stonewall = stonewall;
 576                         stonewall = 0;
 577                 }
 578
 579                 fgetpos(f, &off);
 580                 while ((p = fgets(string, 4096, f)) != NULL) {
 581                         if (is_empty_or_comment(p))
 582                                 continue;
 583
 584                         strip_blank_front(&p);
 585
 586                         if (p[0] == '[')
 587                                 break;
 588
 589                         strip_blank_end(p);
 590
 591                         fgetpos(f, &off);
 592
 593                         /*
 594                          * Don't break here, continue parsing options so we
 595                          * dump all the bad ones. Makes trial/error fixups
 596                          * easier on the user.
 597                          */
 598                         ret |= fio_option_parse(td, p);
 599                 }
 600
 601                 if (!ret) {
 602                         fsetpos(f, &off);
 603                         ret = add_job(td, name, 0);
 604                 } else {
 605                         log_err("fio: job %s dropped\n", name);
 606                         put_job(td);
 607                 }
 608         } while (!ret);
 609
 610         free(string);
 611         free(name);
 612         fclose(f);
 613         return ret;
 614 }
 615
 616 static int fill_def_thread(void)
 617 {
 618         memset(&def_thread, 0, sizeof(def_thread));
 619
 620         if (fio_getaffinity(getpid(), &def_thread.o.cpumask) == -1) {
 621                 perror("sched_getaffinity");
 622                 return 1;
 623         }
 624
 625         /*
 626          * fill default options
 627          */
 628         fio_fill_default_options(&def_thread);
 629
 630         def_thread.o.timeout = def_timeout;
 631         def_thread.o.write_bw_log = write_bw_log;
 632         def_thread.o.write_lat_log = write_lat_log;
 633
 634 #ifdef FIO_HAVE_DISK_UTIL
 635         def_thread.o.do_disk_util = 1;
 636 #endif
 637
 638         return 0;
 639 }
 640
 641 static void free_shm(void)
 642 {
 643         struct shmid_ds sbuf;
 644
 645         if (threads) {
 646                 shmdt((void *) threads);
 647                 threads = NULL;
 648                 shmctl(shm_id, IPC_RMID, &sbuf);
 649         }
 650 }
 651
 652 /*
 653  * The thread area is shared between the main process and the job
 654  * threads/processes. So setup a shared memory segment that will hold
 655  * all the job info.
 656  */
 657 static int setup_thread_area(void)
 658 {
 659         /*
 660          * 1024 is too much on some machines, scale max_jobs if
 661          * we get a failure that looks like too large a shm segment
 662          */
 663         do {
 664                 size_t size = max_jobs * sizeof(struct thread_data);
 665
 666                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 667                 if (shm_id != -1)
 668                         break;
 669                 if (errno != EINVAL) {
 670                         perror("shmget");
 671                         break;
 672                 }
 673
 674                 max_jobs >>= 1;
 675         } while (max_jobs);
 676
 677         if (shm_id == -1)
 678                 return 1;
 679
 680         threads = shmat(shm_id, NULL, 0);
 681         if (threads == (void *) -1) {
 682                 perror("shmat");
 683                 return 1;
 684         }
 685
 686         atexit(free_shm);
 687         return 0;
 688 }
 689
 690 static void usage(void)
 691 {
 692         printf("%s\n", fio_version_string);
 693         printf("\t--output\tWrite output to file\n");
 694         printf("\t--timeout\tRuntime in seconds\n");
 695         printf("\t--latency-log\tGenerate per-job latency logs\n");
 696         printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
 697         printf("\t--minimal\tMinimal (terse) output\n");
 698         printf("\t--version\tPrint version info and exit\n");
 699         printf("\t--help\t\tPrint this page\n");
 700         printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
 701 }
 702
 703 static int parse_cmd_line(int argc, char *argv[])
 704 {
 705         struct thread_data *td = NULL;
 706         int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
 707
 708         while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
 709                 switch (c) {
 710                 case 't':
 711                         def_timeout = atoi(optarg);
 712                         break;
 713                 case 'l':
 714                         write_lat_log = 1;
 715                         break;
 716                 case 'w':
 717                         write_bw_log = 1;
 718                         break;
 719                 case 'o':
 720                         f_out = fopen(optarg, "w+");
 721                         if (!f_out) {
 722                                 perror("fopen output");
 723                                 exit(1);
 724                         }
 725                         f_err = f_out;
 726                         break;
 727                 case 'm':
 728                         terse_output = 1;
 729                         break;
 730                 case 'h':
 731                         usage();
 732                         exit(0);
 733                 case 'c':
 734                         exit(fio_show_option_help(optarg));
 735                 case 'v':
 736                         printf("%s\n", fio_version_string);
 737                         exit(0);
 738                 case FIO_GETOPT_JOB: {
 739                         const char *opt = long_options[lidx].name;
 740                         char *val = optarg;
 741
 742                         if (!strncmp(opt, "name", 4) && td) {
 743                                 ret = add_job(td, td->o.name ?: "fio", 0);
 744                                 if (ret) {
 745                                         put_job(td);
 746                                         return 0;
 747                                 }
 748                                 td = NULL;
 749                         }
 750                         if (!td) {
 751                                 int global = !strncmp(val, "global", 6);
 752
 753                                 td = get_new_job(global, &def_thread);
 754                                 if (!td)
 755                                         return 0;
 756                         }
 757
 758                         ret = fio_cmd_option_parse(td, opt, val);
 759                         if (ret)
 760                                 dont_add_job = 1;
 761                         break;
 762                 }
 763                 default:
 764                         break;
 765                 }
 766         }
 767
 768         if (td) {
 769                 if (dont_add_job)
 770                         put_job(td);
 771                 else {
 772                         ret = add_job(td, td->o.name ?: "fio", 0);
 773                         if (ret)
 774                                 put_job(td);
 775                 }
 776         }
 777
 778         while (optind < argc) {
 779                 ini_idx++;
 780                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
 781                 ini_file[ini_idx - 1] = strdup(argv[optind]);
 782                 optind++;
 783         }
 784
 785         return ini_idx;
 786 }
 787
 788
 789 int parse_options(int argc, char *argv[])
 790 {
 791         int job_files, i;
 792
 793         f_out = stdout;
 794         f_err = stderr;
 795
 796         fio_options_dup_and_init(long_options);
 797
 798         if (setup_thread_area())
 799                 return 1;
 800         if (fill_def_thread())
 801                 return 1;
 802
 803         job_files = parse_cmd_line(argc, argv);
 804
 805         for (i = 0; i < job_files; i++) {
 806                 if (fill_def_thread())
 807                         return 1;
 808                 if (parse_jobs_ini(ini_file[i], i))
 809                         return 1;
 810                 free(ini_file[i]);
 811         }
 812
 813         free(ini_file);
 814
 815         if (!thread_number) {
 816                 log_err("No jobs defined(s)\n");
 817                 return 1;
 818         }
 819
 820         return 0;
 821 }