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 #include "lib/memcpy.h"
  36
  37 const char fio_version_string[] = FIO_VERSION;
  38
  39 #define FIO_RANDSEED            (0xb1899bedUL)
  40
  41 static char **ini_file;
  42 static int max_jobs = FIO_MAX_JOBS;
  43 static int dump_cmdline;
  44 static int parse_only;
  45
  46 static struct thread_data def_thread;
  47 struct thread_data *threads = NULL;
  48 static char **job_sections;
  49 static int nr_job_sections;
  50
  51 int exitall_on_terminate = 0;
  52 int output_format = FIO_OUTPUT_NORMAL;
  53 int eta_print = FIO_ETA_AUTO;
  54 unsigned int eta_interval_msec = 1000;
  55 int eta_new_line = 0;
  56 FILE *f_out = NULL;
  57 FILE *f_err = NULL;
  58 char *exec_profile = NULL;
  59 int warnings_fatal = 0;
  60 int terse_version = 3;
  61 int is_backend = 0;
  62 int nr_clients = 0;
  63 int log_syslog = 0;
  64
  65 int write_bw_log = 0;
  66 int read_only = 0;
  67 int status_interval = 0;
  68
  69 char *trigger_file = NULL;
  70 long long trigger_timeout = 0;
  71 char *trigger_cmd = NULL;
  72 char *trigger_remote_cmd = NULL;
  73
  74 char *aux_path = NULL;
  75
  76 static int prev_group_jobs;
  77
  78 unsigned long fio_debug = 0;
  79 unsigned int fio_debug_jobno = -1;
  80 unsigned int *fio_debug_jobp = NULL;
  81
  82 static char cmd_optstr[256];
  83 static bool did_arg;
  84
  85 #define FIO_CLIENT_FLAG         (1 << 16)
  86
  87 /*
  88  * Command line options. These will contain the above, plus a few
  89  * extra that only pertain to fio itself and not jobs.
  90  */
  91 static struct option l_opts[FIO_NR_OPTIONS] = {
  92         {
  93                 .name           = (char *) "output",
  94                 .has_arg        = required_argument,
  95                 .val            = 'o' | FIO_CLIENT_FLAG,
  96         },
  97         {
  98                 .name           = (char *) "latency-log",
  99                 .has_arg        = required_argument,
 100                 .val            = 'l' | FIO_CLIENT_FLAG,
 101         },
 102         {
 103                 .name           = (char *) "bandwidth-log",
 104                 .has_arg        = no_argument,
 105                 .val            = 'b' | FIO_CLIENT_FLAG,
 106         },
 107         {
 108                 .name           = (char *) "minimal",
 109                 .has_arg        = no_argument,
 110                 .val            = 'm' | FIO_CLIENT_FLAG,
 111         },
 112         {
 113                 .name           = (char *) "output-format",
 114                 .has_arg        = required_argument,
 115                 .val            = 'F' | FIO_CLIENT_FLAG,
 116         },
 117         {
 118                 .name           = (char *) "append-terse",
 119                 .has_arg        = optional_argument,
 120                 .val            = 'f',
 121         },
 122         {
 123                 .name           = (char *) "version",
 124                 .has_arg        = no_argument,
 125                 .val            = 'v' | FIO_CLIENT_FLAG,
 126         },
 127         {
 128                 .name           = (char *) "help",
 129                 .has_arg        = no_argument,
 130                 .val            = 'h' | FIO_CLIENT_FLAG,
 131         },
 132         {
 133                 .name           = (char *) "cmdhelp",
 134                 .has_arg        = optional_argument,
 135                 .val            = 'c' | FIO_CLIENT_FLAG,
 136         },
 137         {
 138                 .name           = (char *) "enghelp",
 139                 .has_arg        = optional_argument,
 140                 .val            = 'i' | FIO_CLIENT_FLAG,
 141         },
 142         {
 143                 .name           = (char *) "showcmd",
 144                 .has_arg        = no_argument,
 145                 .val            = 's' | FIO_CLIENT_FLAG,
 146         },
 147         {
 148                 .name           = (char *) "readonly",
 149                 .has_arg        = no_argument,
 150                 .val            = 'r' | FIO_CLIENT_FLAG,
 151         },
 152         {
 153                 .name           = (char *) "eta",
 154                 .has_arg        = required_argument,
 155                 .val            = 'e' | FIO_CLIENT_FLAG,
 156         },
 157         {
 158                 .name           = (char *) "eta-interval",
 159                 .has_arg        = required_argument,
 160                 .val            = 'O' | FIO_CLIENT_FLAG,
 161         },
 162         {
 163                 .name           = (char *) "eta-newline",
 164                 .has_arg        = required_argument,
 165                 .val            = 'E' | FIO_CLIENT_FLAG,
 166         },
 167         {
 168                 .name           = (char *) "debug",
 169                 .has_arg        = required_argument,
 170                 .val            = 'd' | FIO_CLIENT_FLAG,
 171         },
 172         {
 173                 .name           = (char *) "parse-only",
 174                 .has_arg        = no_argument,
 175                 .val            = 'P' | FIO_CLIENT_FLAG,
 176         },
 177         {
 178                 .name           = (char *) "section",
 179                 .has_arg        = required_argument,
 180                 .val            = 'x' | FIO_CLIENT_FLAG,
 181         },
 182 #ifdef CONFIG_ZLIB
 183         {
 184                 .name           = (char *) "inflate-log",
 185                 .has_arg        = required_argument,
 186                 .val            = 'X' | FIO_CLIENT_FLAG,
 187         },
 188 #endif
 189         {
 190                 .name           = (char *) "alloc-size",
 191                 .has_arg        = required_argument,
 192                 .val            = 'a' | FIO_CLIENT_FLAG,
 193         },
 194         {
 195                 .name           = (char *) "profile",
 196                 .has_arg        = required_argument,
 197                 .val            = 'p' | FIO_CLIENT_FLAG,
 198         },
 199         {
 200                 .name           = (char *) "warnings-fatal",
 201                 .has_arg        = no_argument,
 202                 .val            = 'w' | FIO_CLIENT_FLAG,
 203         },
 204         {
 205                 .name           = (char *) "max-jobs",
 206                 .has_arg        = required_argument,
 207                 .val            = 'j' | FIO_CLIENT_FLAG,
 208         },
 209         {
 210                 .name           = (char *) "terse-version",
 211                 .has_arg        = required_argument,
 212                 .val            = 'V' | FIO_CLIENT_FLAG,
 213         },
 214         {
 215                 .name           = (char *) "server",
 216                 .has_arg        = optional_argument,
 217                 .val            = 'S',
 218         },
 219         {       .name           = (char *) "daemonize",
 220                 .has_arg        = required_argument,
 221                 .val            = 'D',
 222         },
 223         {
 224                 .name           = (char *) "client",
 225                 .has_arg        = required_argument,
 226                 .val            = 'C',
 227         },
 228         {
 229                 .name           = (char *) "remote-config",
 230                 .has_arg        = required_argument,
 231                 .val            = 'R',
 232         },
 233         {
 234                 .name           = (char *) "cpuclock-test",
 235                 .has_arg        = no_argument,
 236                 .val            = 'T',
 237         },
 238         {
 239                 .name           = (char *) "crctest",
 240                 .has_arg        = optional_argument,
 241                 .val            = 'G',
 242         },
 243         {
 244                 .name           = (char *) "memcpytest",
 245                 .has_arg        = optional_argument,
 246                 .val            = 'M',
 247         },
 248         {
 249                 .name           = (char *) "idle-prof",
 250                 .has_arg        = required_argument,
 251                 .val            = 'I',
 252         },
 253         {
 254                 .name           = (char *) "status-interval",
 255                 .has_arg        = required_argument,
 256                 .val            = 'L',
 257         },
 258         {
 259                 .name           = (char *) "trigger-file",
 260                 .has_arg        = required_argument,
 261                 .val            = 'W',
 262         },
 263         {
 264                 .name           = (char *) "trigger-timeout",
 265                 .has_arg        = required_argument,
 266                 .val            = 'B',
 267         },
 268         {
 269                 .name           = (char *) "trigger",
 270                 .has_arg        = required_argument,
 271                 .val            = 'H',
 272         },
 273         {
 274                 .name           = (char *) "trigger-remote",
 275                 .has_arg        = required_argument,
 276                 .val            = 'J',
 277         },
 278         {
 279                 .name           = (char *) "aux-path",
 280                 .has_arg        = required_argument,
 281                 .val            = 'K',
 282         },
 283         {
 284                 .name           = NULL,
 285         },
 286 };
 287
 288 void free_threads_shm(void)
 289 {
 290         if (threads) {
 291                 void *tp = threads;
 292 #ifndef CONFIG_NO_SHM
 293                 struct shmid_ds sbuf;
 294
 295                 threads = NULL;
 296                 shmdt(tp);
 297                 shmctl(shm_id, IPC_RMID, &sbuf);
 298                 shm_id = -1;
 299 #else
 300                 threads = NULL;
 301                 free(tp);
 302 #endif
 303         }
 304 }
 305
 306 static void free_shm(void)
 307 {
 308         if (threads) {
 309                 flow_exit();
 310                 fio_debug_jobp = NULL;
 311                 free_threads_shm();
 312         }
 313
 314         free(trigger_file);
 315         free(trigger_cmd);
 316         free(trigger_remote_cmd);
 317         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 318
 319         options_free(fio_options, &def_thread.o);
 320         fio_filelock_exit();
 321         file_hash_exit();
 322         scleanup();
 323 }
 324
 325 /*
 326  * The thread area is shared between the main process and the job
 327  * threads/processes. So setup a shared memory segment that will hold
 328  * all the job info. We use the end of the region for keeping track of
 329  * open files across jobs, for file sharing.
 330  */
 331 static int setup_thread_area(void)
 332 {
 333         if (threads)
 334                 return 0;
 335
 336         /*
 337          * 1024 is too much on some machines, scale max_jobs if
 338          * we get a failure that looks like too large a shm segment
 339          */
 340         do {
 341                 size_t size = max_jobs * sizeof(struct thread_data);
 342
 343                 size += sizeof(unsigned int);
 344
 345 #ifndef CONFIG_NO_SHM
 346                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 347                 if (shm_id != -1)
 348                         break;
 349                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 350                         perror("shmget");
 351                         break;
 352                 }
 353 #else
 354                 threads = malloc(size);
 355                 if (threads)
 356                         break;
 357 #endif
 358
 359                 max_jobs >>= 1;
 360         } while (max_jobs);
 361
 362 #ifndef CONFIG_NO_SHM
 363         if (shm_id == -1)
 364                 return 1;
 365
 366         threads = shmat(shm_id, NULL, 0);
 367         if (threads == (void *) -1) {
 368                 perror("shmat");
 369                 return 1;
 370         }
 371         if (shm_attach_to_open_removed())
 372                 shmctl(shm_id, IPC_RMID, NULL);
 373 #endif
 374
 375         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 376         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 377         *fio_debug_jobp = -1;
 378
 379         flow_init();
 380
 381         return 0;
 382 }
 383
 384 static void dump_print_option(struct print_option *p)
 385 {
 386         const char *delim;
 387
 388         if (!strcmp("description", p->name))
 389                 delim = "\"";
 390         else
 391                 delim = "";
 392
 393         log_info("--%s%s", p->name, p->value ? "" : " ");
 394         if (p->value)
 395                 log_info("=%s%s%s ", delim, p->value, delim);
 396 }
 397
 398 static void dump_opt_list(struct thread_data *td)
 399 {
 400         struct flist_head *entry;
 401         struct print_option *p;
 402
 403         if (flist_empty(&td->opt_list))
 404                 return;
 405
 406         flist_for_each(entry, &td->opt_list) {
 407                 p = flist_entry(entry, struct print_option, list);
 408                 dump_print_option(p);
 409         }
 410 }
 411
 412 static void fio_dump_options_free(struct thread_data *td)
 413 {
 414         while (!flist_empty(&td->opt_list)) {
 415                 struct print_option *p;
 416
 417                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 418                 flist_del_init(&p->list);
 419                 free(p->name);
 420                 free(p->value);
 421                 free(p);
 422         }
 423 }
 424
 425 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 426 {
 427         struct flist_head *entry;
 428
 429         if (flist_empty(&src->opt_list))
 430                 return;
 431
 432         flist_for_each(entry, &src->opt_list) {
 433                 struct print_option *srcp, *dstp;
 434
 435                 srcp = flist_entry(entry, struct print_option, list);
 436                 dstp = malloc(sizeof(*dstp));
 437                 dstp->name = strdup(srcp->name);
 438                 if (srcp->value)
 439                         dstp->value = strdup(srcp->value);
 440                 else
 441                         dstp->value = NULL;
 442                 flist_add_tail(&dstp->list, &dst->opt_list);
 443         }
 444 }
 445
 446 /*
 447  * Return a free job structure.
 448  */
 449 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 450                                        bool preserve_eo, const char *jobname)
 451 {
 452         struct thread_data *td;
 453
 454         if (global)
 455                 return &def_thread;
 456         if (setup_thread_area()) {
 457                 log_err("error: failed to setup shm segment\n");
 458                 return NULL;
 459         }
 460         if (thread_number >= max_jobs) {
 461                 log_err("error: maximum number of jobs (%d) reached.\n",
 462                                 max_jobs);
 463                 return NULL;
 464         }
 465
 466         td = &threads[thread_number++];
 467         *td = *parent;
 468
 469         INIT_FLIST_HEAD(&td->opt_list);
 470         if (parent != &def_thread)
 471                 copy_opt_list(td, parent);
 472
 473         td->io_ops = NULL;
 474         td->io_ops_init = 0;
 475         if (!preserve_eo)
 476                 td->eo = NULL;
 477
 478         td->o.uid = td->o.gid = -1U;
 479
 480         dup_files(td, parent);
 481         fio_options_mem_dupe(td);
 482
 483         profile_add_hooks(td);
 484
 485         td->thread_number = thread_number;
 486         td->subjob_number = 0;
 487
 488         if (jobname)
 489                 td->o.name = strdup(jobname);
 490
 491         if (!parent->o.group_reporting || parent == &def_thread)
 492                 stat_number++;
 493
 494         return td;
 495 }
 496
 497 static void put_job(struct thread_data *td)
 498 {
 499         if (td == &def_thread)
 500                 return;
 501
 502         profile_td_exit(td);
 503         flow_exit_job(td);
 504
 505         if (td->error)
 506                 log_info("fio: %s\n", td->verror);
 507
 508         fio_options_free(td);
 509         fio_dump_options_free(td);
 510         if (td->io_ops)
 511                 free_ioengine(td);
 512
 513         if (td->o.name)
 514                 free(td->o.name);
 515
 516         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 517         thread_number--;
 518 }
 519
 520 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 521 {
 522         unsigned int bs = td->o.min_bs[ddir];
 523
 524         assert(ddir_rw(ddir));
 525
 526         if (td->o.rate[ddir])
 527                 td->rate_bps[ddir] = td->o.rate[ddir];
 528         else
 529                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 530
 531         if (!td->rate_bps[ddir]) {
 532                 log_err("rate lower than supported\n");
 533                 return -1;
 534         }
 535
 536         td->rate_next_io_time[ddir] = 0;
 537         td->rate_io_issue_bytes[ddir] = 0;
 538         td->last_usec[ddir] = 0;
 539         return 0;
 540 }
 541
 542 static int setup_rate(struct thread_data *td)
 543 {
 544         int ret = 0;
 545
 546         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 547                 ret = __setup_rate(td, DDIR_READ);
 548         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 549                 ret |= __setup_rate(td, DDIR_WRITE);
 550         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 551                 ret |= __setup_rate(td, DDIR_TRIM);
 552
 553         return ret;
 554 }
 555
 556 static int fixed_block_size(struct thread_options *o)
 557 {
 558         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 559                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 560                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 561                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 562                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 563 }
 564
 565
 566 static unsigned long long get_rand_start_delay(struct thread_data *td)
 567 {
 568         unsigned long long delayrange;
 569         uint64_t frand_max;
 570         unsigned long r;
 571
 572         delayrange = td->o.start_delay_high - td->o.start_delay;
 573
 574         frand_max = rand_max(&td->delay_state);
 575         r = __rand(&td->delay_state);
 576         delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
 577
 578         delayrange += td->o.start_delay;
 579         return delayrange;
 580 }
 581
 582 /*
 583  * <3 Johannes
 584  */
 585 static unsigned int gcd(unsigned int m, unsigned int n)
 586 {
 587         if (!n)
 588                 return m;
 589
 590         return gcd(n, m % n);
 591 }
 592
 593 /*
 594  * Lazy way of fixing up options that depend on each other. We could also
 595  * define option callback handlers, but this is easier.
 596  */
 597 static int fixup_options(struct thread_data *td)
 598 {
 599         struct thread_options *o = &td->o;
 600         int ret = 0;
 601
 602 #ifndef CONFIG_PSHARED
 603         if (!o->use_thread) {
 604                 log_info("fio: this platform does not support process shared"
 605                          " mutexes, forcing use of threads. Use the 'thread'"
 606                          " option to get rid of this warning.\n");
 607                 o->use_thread = 1;
 608                 ret = warnings_fatal;
 609         }
 610 #endif
 611
 612         if (o->write_iolog_file && o->read_iolog_file) {
 613                 log_err("fio: read iolog overrides write_iolog\n");
 614                 free(o->write_iolog_file);
 615                 o->write_iolog_file = NULL;
 616                 ret = warnings_fatal;
 617         }
 618
 619         /*
 620          * only really works with 1 file
 621          */
 622         if (o->zone_size && o->open_files > 1)
 623                 o->zone_size = 0;
 624
 625         /*
 626          * If zone_range isn't specified, backward compatibility dictates it
 627          * should be made equal to zone_size.
 628          */
 629         if (o->zone_size && !o->zone_range)
 630                 o->zone_range = o->zone_size;
 631
 632         /*
 633          * Reads can do overwrites, we always need to pre-create the file
 634          */
 635         if (td_read(td))
 636                 o->overwrite = 1;
 637
 638         if (!o->min_bs[DDIR_READ])
 639                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 640         if (!o->max_bs[DDIR_READ])
 641                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 642         if (!o->min_bs[DDIR_WRITE])
 643                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 644         if (!o->max_bs[DDIR_WRITE])
 645                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 646         if (!o->min_bs[DDIR_TRIM])
 647                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 648         if (!o->max_bs[DDIR_TRIM])
 649                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 650
 651         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 652         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 653
 654         /*
 655          * For random IO, allow blockalign offset other than min_bs.
 656          */
 657         if (!o->ba[DDIR_READ] || !td_random(td))
 658                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 659         if (!o->ba[DDIR_WRITE] || !td_random(td))
 660                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 661         if (!o->ba[DDIR_TRIM] || !td_random(td))
 662                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 663
 664         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 665             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 666             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 667             !o->norandommap) {
 668                 log_err("fio: Any use of blockalign= turns off randommap\n");
 669                 o->norandommap = 1;
 670                 ret = warnings_fatal;
 671         }
 672
 673         if (!o->file_size_high)
 674                 o->file_size_high = o->file_size_low;
 675
 676         if (o->start_delay_high)
 677                 o->start_delay = get_rand_start_delay(td);
 678
 679         if (o->norandommap && o->verify != VERIFY_NONE
 680             && !fixed_block_size(o))  {
 681                 log_err("fio: norandommap given for variable block sizes, "
 682                         "verify limited\n");
 683                 ret = warnings_fatal;
 684         }
 685         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 686                 log_err("fio: bs_unaligned may not work with raw io\n");
 687
 688         /*
 689          * thinktime_spin must be less than thinktime
 690          */
 691         if (o->thinktime_spin > o->thinktime)
 692                 o->thinktime_spin = o->thinktime;
 693
 694         /*
 695          * The low water mark cannot be bigger than the iodepth
 696          */
 697         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 698                 o->iodepth_low = o->iodepth;
 699
 700         /*
 701          * If batch number isn't set, default to the same as iodepth
 702          */
 703         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 704                 o->iodepth_batch = o->iodepth;
 705
 706         /*
 707          * If max batch complete number isn't set or set incorrectly,
 708          * default to the same as iodepth_batch_complete_min
 709          */
 710         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 711                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 712
 713         /*
 714          * There's no need to check for in-flight overlapping IOs if the job
 715          * isn't changing data or the maximum iodepth is guaranteed to be 1
 716          */
 717         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 718             (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
 719                 o->serialize_overlap = 0;
 720         /*
 721          * Currently can't check for overlaps in offload mode
 722          */
 723         if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
 724                 log_err("fio: checking for in-flight overlaps when the "
 725                         "io_submit_mode is offload is not supported\n");
 726                 o->serialize_overlap = 0;
 727                 ret = warnings_fatal;
 728         }
 729
 730         if (o->nr_files > td->files_index)
 731                 o->nr_files = td->files_index;
 732
 733         if (o->open_files > o->nr_files || !o->open_files)
 734                 o->open_files = o->nr_files;
 735
 736         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 737             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 738             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 739             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 740                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 741                 ret = 1;
 742         }
 743         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 744             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 745             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 746             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 747             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 748             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 749                 log_err("fio: minimum rate exceeds rate\n");
 750                 ret = 1;
 751         }
 752
 753         if (!o->timeout && o->time_based) {
 754                 log_err("fio: time_based requires a runtime/timeout setting\n");
 755                 o->time_based = 0;
 756                 ret = warnings_fatal;
 757         }
 758
 759         if (o->fill_device && !o->size)
 760                 o->size = -1ULL;
 761
 762         if (o->verify != VERIFY_NONE) {
 763                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 764                     (o->filename ||
 765                      !(o->unique_filename &&
 766                        strstr(o->filename_format, "$jobname") &&
 767                        strstr(o->filename_format, "$jobnum") &&
 768                        strstr(o->filename_format, "$filenum")))) {
 769                         log_info("fio: multiple writers may overwrite blocks "
 770                                 "that belong to other jobs. This can cause "
 771                                 "verification failures.\n");
 772                         ret = warnings_fatal;
 773                 }
 774
 775                 /*
 776                  * Warn if verification is requested but no verification of any
 777                  * kind can be started due to time constraints
 778                  */
 779                 if (td_write(td) && o->do_verify && o->timeout &&
 780                     o->time_based && !td_read(td) && !o->verify_backlog) {
 781                         log_info("fio: verification read phase will never "
 782                                  "start because write phase uses all of "
 783                                  "runtime\n");
 784                         ret = warnings_fatal;
 785                 }
 786
 787                 if (!fio_option_is_set(o, refill_buffers))
 788                         o->refill_buffers = 1;
 789
 790                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 791                     !o->verify_interval)
 792                         o->verify_interval = o->min_bs[DDIR_WRITE];
 793
 794                 /*
 795                  * Verify interval must be smaller or equal to the
 796                  * write size.
 797                  */
 798                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 799                         o->verify_interval = o->min_bs[DDIR_WRITE];
 800                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 801                         o->verify_interval = o->min_bs[DDIR_READ];
 802
 803                 /*
 804                  * Verify interval must be a factor or both min and max
 805                  * write size
 806                  */
 807                 if (o->verify_interval % o->min_bs[DDIR_WRITE] ||
 808                     o->verify_interval % o->max_bs[DDIR_WRITE])
 809                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 810                                                         o->max_bs[DDIR_WRITE]);
 811         }
 812
 813         if (o->pre_read) {
 814                 if (o->invalidate_cache)
 815                         o->invalidate_cache = 0;
 816                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 817                         log_info("fio: cannot pre-read files with an IO engine"
 818                                  " that isn't seekable. Pre-read disabled.\n");
 819                         ret = warnings_fatal;
 820                 }
 821         }
 822
 823         if (!o->unit_base) {
 824                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 825                         o->unit_base = 1;
 826                 else
 827                         o->unit_base = 8;
 828         }
 829
 830 #ifndef FIO_HAVE_ANY_FALLOCATE
 831         /* Platform doesn't support any fallocate so force it to none */
 832         o->fallocate_mode = FIO_FALLOCATE_NONE;
 833 #endif
 834
 835 #ifndef CONFIG_FDATASYNC
 836         if (o->fdatasync_blocks) {
 837                 log_info("fio: this platform does not support fdatasync()"
 838                          " falling back to using fsync().  Use the 'fsync'"
 839                          " option instead of 'fdatasync' to get rid of"
 840                          " this warning\n");
 841                 o->fsync_blocks = o->fdatasync_blocks;
 842                 o->fdatasync_blocks = 0;
 843                 ret = warnings_fatal;
 844         }
 845 #endif
 846
 847 #ifdef WIN32
 848         /*
 849          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 850          * so fail if we're passed those flags
 851          */
 852         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 853                 log_err("fio: Windows does not support direct or non-buffered io with"
 854                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 855                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 856                 ret = 1;
 857         }
 858 #endif
 859
 860         /*
 861          * For fully compressible data, just zero them at init time.
 862          * It's faster than repeatedly filling it. For non-zero
 863          * compression, we should have refill_buffers set. Set it, unless
 864          * the job file already changed it.
 865          */
 866         if (o->compress_percentage) {
 867                 if (o->compress_percentage == 100) {
 868                         o->zero_buffers = 1;
 869                         o->compress_percentage = 0;
 870                 } else if (!fio_option_is_set(o, refill_buffers)) {
 871                         o->refill_buffers = 1;
 872                         td->flags |= TD_F_REFILL_BUFFERS;
 873                 }
 874         }
 875
 876         /*
 877          * Using a non-uniform random distribution excludes usage of
 878          * a random map
 879          */
 880         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 881                 o->norandommap = 1;
 882
 883         /*
 884          * If size is set but less than the min block size, complain
 885          */
 886         if (o->size && o->size < td_min_bs(td)) {
 887                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 888                         (unsigned long long) o->size, td_min_bs(td));
 889                 ret = 1;
 890         }
 891
 892         /*
 893          * O_ATOMIC implies O_DIRECT
 894          */
 895         if (o->oatomic)
 896                 o->odirect = 1;
 897
 898         /*
 899          * If randseed is set, that overrides randrepeat
 900          */
 901         if (fio_option_is_set(o, rand_seed))
 902                 o->rand_repeatable = 0;
 903
 904         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 905                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 906                 ret = 1;
 907         }
 908
 909         if (fio_option_is_set(o, gtod_cpu)) {
 910                 fio_gtod_init();
 911                 fio_gtod_set_cpu(o->gtod_cpu);
 912                 fio_gtod_offload = 1;
 913         }
 914
 915         td->loops = o->loops;
 916         if (!td->loops)
 917                 td->loops = 1;
 918
 919         if (o->block_error_hist && o->nr_files != 1) {
 920                 log_err("fio: block error histogram only available "
 921                         "with a single file per job, but %d files "
 922                         "provided\n", o->nr_files);
 923                 ret = 1;
 924         }
 925
 926         if (fio_option_is_set(o, clat_percentiles) &&
 927             !fio_option_is_set(o, lat_percentiles)) {
 928                 o->lat_percentiles = !o->clat_percentiles;
 929         } else if (fio_option_is_set(o, lat_percentiles) &&
 930                    !fio_option_is_set(o, clat_percentiles)) {
 931                 o->clat_percentiles = !o->lat_percentiles;
 932         } else if (fio_option_is_set(o, lat_percentiles) &&
 933                    fio_option_is_set(o, clat_percentiles) &&
 934                    o->lat_percentiles && o->clat_percentiles) {
 935                 log_err("fio: lat_percentiles and clat_percentiles are "
 936                         "mutually exclusive\n");
 937                 ret = 1;
 938         }
 939
 940         /*
 941          * Fix these up to be nsec internally
 942          */
 943         o->max_latency *= 1000ULL;
 944         o->latency_target *= 1000ULL;
 945         o->latency_window *= 1000ULL;
 946
 947         return ret;
 948 }
 949
 950 static void init_rand_file_service(struct thread_data *td)
 951 {
 952         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 953         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 954
 955         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 956                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 957                 zipf_disable_hash(&td->next_file_zipf);
 958         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 959                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 960                 zipf_disable_hash(&td->next_file_zipf);
 961         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 962                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 963                 gauss_disable_hash(&td->next_file_gauss);
 964         }
 965 }
 966
 967 void td_fill_verify_state_seed(struct thread_data *td)
 968 {
 969         bool use64;
 970
 971         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 972                 use64 = true;
 973         else
 974                 use64 = false;
 975
 976         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 977                 use64);
 978 }
 979
 980 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 981 {
 982         int i;
 983
 984         /*
 985          * trimwrite is special in that we need to generate the same
 986          * offsets to get the "write after trim" effect. If we are
 987          * using bssplit to set buffer length distributions, ensure that
 988          * we seed the trim and write generators identically.
 989          */
 990         if (td_trimwrite(td)) {
 991                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 992                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 993                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 994         } else {
 995                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 996                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 997                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
 998         }
 999
1000         td_fill_verify_state_seed(td);
1001         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1002
1003         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1004                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1005         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1006                 init_rand_file_service(td);
1007
1008         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1009         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1010         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1011         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1012         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1013         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1014         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1015         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1016
1017         if (!td_random(td))
1018                 return;
1019
1020         if (td->o.rand_repeatable)
1021                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1022
1023         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1024
1025         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1026                 struct frand_state *s = &td->seq_rand_state[i];
1027
1028                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1029         }
1030 }
1031
1032 void td_fill_rand_seeds(struct thread_data *td)
1033 {
1034         bool use64;
1035
1036         if (td->o.allrand_repeatable) {
1037                 unsigned int i;
1038
1039                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1040                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1041                                 + i;
1042         }
1043
1044         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1045                 use64 = true;
1046         else
1047                 use64 = false;
1048
1049         td_fill_rand_seeds_internal(td, use64);
1050
1051         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1052         frand_copy(&td->buf_state_prev, &td->buf_state);
1053 }
1054
1055 /*
1056  * Initializes the ioengine configured for a job, if it has not been done so
1057  * already.
1058  */
1059 int ioengine_load(struct thread_data *td)
1060 {
1061         if (!td->o.ioengine) {
1062                 log_err("fio: internal fault, no IO engine specified\n");
1063                 return 1;
1064         }
1065
1066         if (td->io_ops) {
1067                 /* An engine is loaded, but the requested ioengine
1068                  * may have changed.
1069                  */
1070                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1071                         /* The right engine is already loaded */
1072                         return 0;
1073                 }
1074
1075                 /* Unload the old engine. */
1076                 free_ioengine(td);
1077         }
1078
1079         td->io_ops = load_ioengine(td);
1080         if (!td->io_ops) {
1081                 log_err("fio: failed to load engine\n");
1082                 return 1;
1083         }
1084
1085         if (td->io_ops->option_struct_size && td->io_ops->options) {
1086                 /*
1087                  * In cases where td->eo is set, clone it for a child thread.
1088                  * This requires that the parent thread has the same ioengine,
1089                  * but that requirement must be enforced by the code which
1090                  * cloned the thread.
1091                  */
1092                 void *origeo = td->eo;
1093                 /*
1094                  * Otherwise use the default thread options.
1095                  */
1096                 if (!origeo && td != &def_thread && def_thread.eo &&
1097                     def_thread.io_ops->options == td->io_ops->options)
1098                         origeo = def_thread.eo;
1099
1100                 options_init(td->io_ops->options);
1101                 td->eo = malloc(td->io_ops->option_struct_size);
1102                 /*
1103                  * Use the default thread as an option template if this uses the
1104                  * same options structure and there are non-default options
1105                  * used.
1106                  */
1107                 if (origeo) {
1108                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1109                         options_mem_dupe(td->io_ops->options, td->eo);
1110                 } else {
1111                         memset(td->eo, 0, td->io_ops->option_struct_size);
1112                         fill_default_options(td->eo, td->io_ops->options);
1113                 }
1114                 *(struct thread_data **)td->eo = td;
1115         }
1116
1117         if (td->o.odirect)
1118                 td->io_ops->flags |= FIO_RAWIO;
1119
1120         td_set_ioengine_flags(td);
1121         return 0;
1122 }
1123
1124 static void init_flags(struct thread_data *td)
1125 {
1126         struct thread_options *o = &td->o;
1127         int i;
1128
1129         if (o->verify_backlog)
1130                 td->flags |= TD_F_VER_BACKLOG;
1131         if (o->trim_backlog)
1132                 td->flags |= TD_F_TRIM_BACKLOG;
1133         if (o->read_iolog_file)
1134                 td->flags |= TD_F_READ_IOLOG;
1135         if (o->refill_buffers)
1136                 td->flags |= TD_F_REFILL_BUFFERS;
1137         /*
1138          * Always scramble buffers if asked to
1139          */
1140         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1141                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1142         /*
1143          * But also scramble buffers, unless we were explicitly asked
1144          * to zero them.
1145          */
1146         if (o->scramble_buffers && !(o->zero_buffers &&
1147             fio_option_is_set(o, zero_buffers)))
1148                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1149         if (o->verify != VERIFY_NONE)
1150                 td->flags |= TD_F_VER_NONE;
1151
1152         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1153                 td->flags |= TD_F_NEED_LOCK;
1154
1155         if (o->mem_type == MEM_CUDA_MALLOC)
1156                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1157
1158         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1159                 if (option_check_rate(td, i)) {
1160                         td->flags |= TD_F_CHECK_RATE;
1161                         break;
1162                 }
1163         }
1164 }
1165
1166 static int setup_random_seeds(struct thread_data *td)
1167 {
1168         unsigned long seed;
1169         unsigned int i;
1170
1171         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1172                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1173                 if (!ret)
1174                         td_fill_rand_seeds(td);
1175                 return ret;
1176         }
1177
1178         seed = td->o.rand_seed;
1179         for (i = 0; i < 4; i++)
1180                 seed *= 0x9e370001UL;
1181
1182         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1183                 td->rand_seeds[i] = seed * td->thread_number + i;
1184                 seed *= 0x9e370001UL;
1185         }
1186
1187         td_fill_rand_seeds(td);
1188         return 0;
1189 }
1190
1191 enum {
1192         FPRE_NONE = 0,
1193         FPRE_JOBNAME,
1194         FPRE_JOBNUM,
1195         FPRE_FILENUM
1196 };
1197
1198 static struct fpre_keyword {
1199         const char *keyword;
1200         size_t strlen;
1201         int key;
1202 } fpre_keywords[] = {
1203         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1204         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1205         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1206         { .keyword = NULL, },
1207         };
1208
1209 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1210                            const char *jobname, int jobnum, int filenum)
1211 {
1212         struct fpre_keyword *f;
1213         char copy[PATH_MAX];
1214         size_t dst_left = PATH_MAX - 1;
1215
1216         if (!o->filename_format || !strlen(o->filename_format)) {
1217                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1218                 return buf;
1219         }
1220
1221         for (f = &fpre_keywords[0]; f->keyword; f++)
1222                 f->strlen = strlen(f->keyword);
1223
1224         buf[buf_size - 1] = '\0';
1225         strncpy(buf, o->filename_format, buf_size - 1);
1226
1227         memset(copy, 0, sizeof(copy));
1228         for (f = &fpre_keywords[0]; f->keyword; f++) {
1229                 do {
1230                         size_t pre_len, post_start = 0;
1231                         char *str, *dst = copy;
1232
1233                         str = strcasestr(buf, f->keyword);
1234                         if (!str)
1235                                 break;
1236
1237                         pre_len = str - buf;
1238                         if (strlen(str) != f->strlen)
1239                                 post_start = pre_len + f->strlen;
1240
1241                         if (pre_len) {
1242                                 strncpy(dst, buf, pre_len);
1243                                 dst += pre_len;
1244                                 dst_left -= pre_len;
1245                         }
1246
1247                         switch (f->key) {
1248                         case FPRE_JOBNAME: {
1249                                 int ret;
1250
1251                                 ret = snprintf(dst, dst_left, "%s", jobname);
1252                                 if (ret < 0)
1253                                         break;
1254                                 else if (ret > dst_left) {
1255                                         log_err("fio: truncated filename\n");
1256                                         dst += dst_left;
1257                                         dst_left = 0;
1258                                 } else {
1259                                         dst += ret;
1260                                         dst_left -= ret;
1261                                 }
1262                                 break;
1263                                 }
1264                         case FPRE_JOBNUM: {
1265                                 int ret;
1266
1267                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1268                                 if (ret < 0)
1269                                         break;
1270                                 else if (ret > dst_left) {
1271                                         log_err("fio: truncated filename\n");
1272                                         dst += dst_left;
1273                                         dst_left = 0;
1274                                 } else {
1275                                         dst += ret;
1276                                         dst_left -= ret;
1277                                 }
1278                                 break;
1279                                 }
1280                         case FPRE_FILENUM: {
1281                                 int ret;
1282
1283                                 ret = snprintf(dst, dst_left, "%d", filenum);
1284                                 if (ret < 0)
1285                                         break;
1286                                 else if (ret > dst_left) {
1287                                         log_err("fio: truncated filename\n");
1288                                         dst += dst_left;
1289                                         dst_left = 0;
1290                                 } else {
1291                                         dst += ret;
1292                                         dst_left -= ret;
1293                                 }
1294                                 break;
1295                                 }
1296                         default:
1297                                 assert(0);
1298                                 break;
1299                         }
1300
1301                         if (post_start)
1302                                 strncpy(dst, buf + post_start, dst_left);
1303
1304                         strncpy(buf, copy, buf_size - 1);
1305                 } while (1);
1306         }
1307
1308         return buf;
1309 }
1310
1311 bool parse_dryrun(void)
1312 {
1313         return dump_cmdline || parse_only;
1314 }
1315
1316 static void gen_log_name(char *name, size_t size, const char *logtype,
1317                          const char *logname, unsigned int num,
1318                          const char *suf, int per_job)
1319 {
1320         if (per_job)
1321                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1322         else
1323                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1324 }
1325
1326 static int check_waitees(char *waitee)
1327 {
1328         struct thread_data *td;
1329         int i, ret = 0;
1330
1331         for_each_td(td, i) {
1332                 if (td->subjob_number)
1333                         continue;
1334
1335                 ret += !strcmp(td->o.name, waitee);
1336         }
1337
1338         return ret;
1339 }
1340
1341 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1342 {
1343         int nw;
1344
1345         if (!o->wait_for)
1346                 return true;
1347
1348         if (!strcmp(jobname, o->wait_for)) {
1349                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1350                                 jobname, o->wait_for);
1351                 return false;
1352         }
1353
1354         if (!(nw = check_waitees(o->wait_for))) {
1355                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1356                 return false;
1357         }
1358
1359         if (nw > 1) {
1360                 log_err("%s: multiple waitees %s found,\n"
1361                         "please avoid duplicates when using wait_for option.\n",
1362                                 jobname, o->wait_for);
1363                 return false;
1364         }
1365
1366         return true;
1367 }
1368
1369 /*
1370  * Adds a job to the list of things todo. Sanitizes the various options
1371  * to make sure we don't have conflicts, and initializes various
1372  * members of td.
1373  */
1374 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1375                    int recursed, int client_type)
1376 {
1377         unsigned int i;
1378         char fname[PATH_MAX];
1379         int numjobs, file_alloced;
1380         struct thread_options *o = &td->o;
1381         char logname[PATH_MAX + 32];
1382
1383         /*
1384          * the def_thread is just for options, it's not a real job
1385          */
1386         if (td == &def_thread)
1387                 return 0;
1388
1389         init_flags(td);
1390
1391         /*
1392          * if we are just dumping the output command line, don't add the job
1393          */
1394         if (parse_dryrun()) {
1395                 put_job(td);
1396                 return 0;
1397         }
1398
1399         td->client_type = client_type;
1400
1401         if (profile_td_init(td))
1402                 goto err;
1403
1404         if (ioengine_load(td))
1405                 goto err;
1406
1407         file_alloced = 0;
1408         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1409                 file_alloced = 1;
1410
1411                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1412                         add_file(td, jobname, job_add_num, 0);
1413                 else {
1414                         for (i = 0; i < o->nr_files; i++)
1415                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1416                 }
1417         }
1418
1419         if (fixup_options(td))
1420                 goto err;
1421
1422         /*
1423          * Belongs to fixup_options, but o->name is not necessarily set as yet
1424          */
1425         if (!wait_for_ok(jobname, o))
1426                 goto err;
1427
1428         flow_init_job(td);
1429
1430         /*
1431          * IO engines only need this for option callbacks, and the address may
1432          * change in subprocesses.
1433          */
1434         if (td->eo)
1435                 *(struct thread_data **)td->eo = NULL;
1436
1437         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1438                 struct fio_file *f;
1439
1440                 for_each_file(td, f, i)
1441                         f->real_file_size = -1ULL;
1442         }
1443
1444         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1445
1446         td->ts.clat_percentiles = o->clat_percentiles;
1447         td->ts.lat_percentiles = o->lat_percentiles;
1448         td->ts.percentile_precision = o->percentile_precision;
1449         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1450
1451         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1452                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1453                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1454                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1455                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1456                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1457         }
1458         td->ddir_seq_nr = o->ddir_seq_nr;
1459
1460         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1461                 prev_group_jobs = 0;
1462                 groupid++;
1463                 if (groupid == INT_MAX) {
1464                         log_err("fio: too many groups defined\n");
1465                         goto err;
1466                 }
1467         }
1468
1469         td->groupid = groupid;
1470         prev_group_jobs++;
1471
1472         if (setup_random_seeds(td)) {
1473                 td_verror(td, errno, "setup_random_seeds");
1474                 goto err;
1475         }
1476
1477         if (setup_rate(td))
1478                 goto err;
1479
1480         if (o->write_lat_log) {
1481                 struct log_params p = {
1482                         .td = td,
1483                         .avg_msec = o->log_avg_msec,
1484                         .hist_msec = o->log_hist_msec,
1485                         .hist_coarseness = o->log_hist_coarseness,
1486                         .log_type = IO_LOG_TYPE_LAT,
1487                         .log_offset = o->log_offset,
1488                         .log_gz = o->log_gz,
1489                         .log_gz_store = o->log_gz_store,
1490                 };
1491                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1492                 const char *suf;
1493
1494                 if (p.log_gz_store)
1495                         suf = "log.fz";
1496                 else
1497                         suf = "log";
1498
1499                 gen_log_name(logname, sizeof(logname), "lat", pre,
1500                                 td->thread_number, suf, o->per_job_logs);
1501                 setup_log(&td->lat_log, &p, logname);
1502
1503                 gen_log_name(logname, sizeof(logname), "slat", pre,
1504                                 td->thread_number, suf, o->per_job_logs);
1505                 setup_log(&td->slat_log, &p, logname);
1506
1507                 gen_log_name(logname, sizeof(logname), "clat", pre,
1508                                 td->thread_number, suf, o->per_job_logs);
1509                 setup_log(&td->clat_log, &p, logname);
1510         }
1511
1512         if (o->write_hist_log) {
1513                 struct log_params p = {
1514                         .td = td,
1515                         .avg_msec = o->log_avg_msec,
1516                         .hist_msec = o->log_hist_msec,
1517                         .hist_coarseness = o->log_hist_coarseness,
1518                         .log_type = IO_LOG_TYPE_HIST,
1519                         .log_offset = o->log_offset,
1520                         .log_gz = o->log_gz,
1521                         .log_gz_store = o->log_gz_store,
1522                 };
1523                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1524                 const char *suf;
1525
1526 #ifndef CONFIG_ZLIB
1527                 if (td->client_type) {
1528                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1529                         goto err;
1530                 }
1531 #endif
1532
1533                 if (p.log_gz_store)
1534                         suf = "log.fz";
1535                 else
1536                         suf = "log";
1537
1538                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1539                                 td->thread_number, suf, o->per_job_logs);
1540                 setup_log(&td->clat_hist_log, &p, logname);
1541         }
1542
1543         if (o->write_bw_log) {
1544                 struct log_params p = {
1545                         .td = td,
1546                         .avg_msec = o->log_avg_msec,
1547                         .hist_msec = o->log_hist_msec,
1548                         .hist_coarseness = o->log_hist_coarseness,
1549                         .log_type = IO_LOG_TYPE_BW,
1550                         .log_offset = o->log_offset,
1551                         .log_gz = o->log_gz,
1552                         .log_gz_store = o->log_gz_store,
1553                 };
1554                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1555                 const char *suf;
1556
1557                 if (fio_option_is_set(o, bw_avg_time))
1558                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1559                 else
1560                         o->bw_avg_time = p.avg_msec;
1561
1562                 p.hist_msec = o->log_hist_msec;
1563                 p.hist_coarseness = o->log_hist_coarseness;
1564
1565                 if (p.log_gz_store)
1566                         suf = "log.fz";
1567                 else
1568                         suf = "log";
1569
1570                 gen_log_name(logname, sizeof(logname), "bw", pre,
1571                                 td->thread_number, suf, o->per_job_logs);
1572                 setup_log(&td->bw_log, &p, logname);
1573         }
1574         if (o->write_iops_log) {
1575                 struct log_params p = {
1576                         .td = td,
1577                         .avg_msec = o->log_avg_msec,
1578                         .hist_msec = o->log_hist_msec,
1579                         .hist_coarseness = o->log_hist_coarseness,
1580                         .log_type = IO_LOG_TYPE_IOPS,
1581                         .log_offset = o->log_offset,
1582                         .log_gz = o->log_gz,
1583                         .log_gz_store = o->log_gz_store,
1584                 };
1585                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1586                 const char *suf;
1587
1588                 if (fio_option_is_set(o, iops_avg_time))
1589                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1590                 else
1591                         o->iops_avg_time = p.avg_msec;
1592
1593                 p.hist_msec = o->log_hist_msec;
1594                 p.hist_coarseness = o->log_hist_coarseness;
1595
1596                 if (p.log_gz_store)
1597                         suf = "log.fz";
1598                 else
1599                         suf = "log";
1600
1601                 gen_log_name(logname, sizeof(logname), "iops", pre,
1602                                 td->thread_number, suf, o->per_job_logs);
1603                 setup_log(&td->iops_log, &p, logname);
1604         }
1605
1606         if (!o->name)
1607                 o->name = strdup(jobname);
1608
1609         if (output_format & FIO_OUTPUT_NORMAL) {
1610                 if (!job_add_num) {
1611                         if (is_backend && !recursed)
1612                                 fio_server_send_add_job(td);
1613
1614                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1615                                 char *c1, *c2, *c3, *c4;
1616                                 char *c5 = NULL, *c6 = NULL;
1617                                 int i2p = is_power_of_2(o->kb_base);
1618
1619                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1620                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1621                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1622                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1623
1624                                 if (!o->bs_is_seq_rand) {
1625                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1626                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1627                                 }
1628
1629                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1630                                                         td->groupid,
1631                                                         ddir_str(o->td_ddir));
1632
1633                                 if (o->bs_is_seq_rand)
1634                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1635                                                         c1, c2, c3, c4);
1636                                 else
1637                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1638                                                         c1, c2, c3, c4, c5, c6);
1639
1640                                 log_info("ioengine=%s, iodepth=%u\n",
1641                                                 td->io_ops->name, o->iodepth);
1642
1643                                 free(c1);
1644                                 free(c2);
1645                                 free(c3);
1646                                 free(c4);
1647                                 free(c5);
1648                                 free(c6);
1649                         }
1650                 } else if (job_add_num == 1)
1651                         log_info("...\n");
1652         }
1653
1654         if (td_steadystate_init(td))
1655                 goto err;
1656
1657         /*
1658          * recurse add identical jobs, clear numjobs and stonewall options
1659          * as they don't apply to sub-jobs
1660          */
1661         numjobs = o->numjobs;
1662         while (--numjobs) {
1663                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1664
1665                 if (!td_new)
1666                         goto err;
1667
1668                 td_new->o.numjobs = 1;
1669                 td_new->o.stonewall = 0;
1670                 td_new->o.new_group = 0;
1671                 td_new->subjob_number = numjobs;
1672                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1673                 td_new->o.ss_limit = o->ss_limit;
1674
1675                 if (file_alloced) {
1676                         if (td_new->files) {
1677                                 struct fio_file *f;
1678                                 for_each_file(td_new, f, i) {
1679                                         if (f->file_name)
1680                                                 sfree(f->file_name);
1681                                         sfree(f);
1682                                 }
1683                                 free(td_new->files);
1684                                 td_new->files = NULL;
1685                         }
1686                         td_new->files_index = 0;
1687                         td_new->files_size = 0;
1688                         if (td_new->o.filename) {
1689                                 free(td_new->o.filename);
1690                                 td_new->o.filename = NULL;
1691                         }
1692                 }
1693
1694                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1695                         goto err;
1696         }
1697
1698         return 0;
1699 err:
1700         put_job(td);
1701         return -1;
1702 }
1703
1704 /*
1705  * Parse as if 'o' was a command line
1706  */
1707 void add_job_opts(const char **o, int client_type)
1708 {
1709         struct thread_data *td, *td_parent;
1710         int i, in_global = 1;
1711         char jobname[32];
1712
1713         i = 0;
1714         td_parent = td = NULL;
1715         while (o[i]) {
1716                 if (!strncmp(o[i], "name", 4)) {
1717                         in_global = 0;
1718                         if (td)
1719                                 add_job(td, jobname, 0, 0, client_type);
1720                         td = NULL;
1721                         sprintf(jobname, "%s", o[i] + 5);
1722                 }
1723                 if (in_global && !td_parent)
1724                         td_parent = get_new_job(true, &def_thread, false, jobname);
1725                 else if (!in_global && !td) {
1726                         if (!td_parent)
1727                                 td_parent = &def_thread;
1728                         td = get_new_job(false, td_parent, false, jobname);
1729                 }
1730                 if (in_global)
1731                         fio_options_parse(td_parent, (char **) &o[i], 1);
1732                 else
1733                         fio_options_parse(td, (char **) &o[i], 1);
1734                 i++;
1735         }
1736
1737         if (td)
1738                 add_job(td, jobname, 0, 0, client_type);
1739 }
1740
1741 static int skip_this_section(const char *name)
1742 {
1743         int i;
1744
1745         if (!nr_job_sections)
1746                 return 0;
1747         if (!strncmp(name, "global", 6))
1748                 return 0;
1749
1750         for (i = 0; i < nr_job_sections; i++)
1751                 if (!strcmp(job_sections[i], name))
1752                         return 0;
1753
1754         return 1;
1755 }
1756
1757 static int is_empty_or_comment(char *line)
1758 {
1759         unsigned int i;
1760
1761         for (i = 0; i < strlen(line); i++) {
1762                 if (line[i] == ';')
1763                         return 1;
1764                 if (line[i] == '#')
1765                         return 1;
1766                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1767                         return 0;
1768         }
1769
1770         return 1;
1771 }
1772
1773 /*
1774  * This is our [ini] type file parser.
1775  */
1776 static int __parse_jobs_ini(struct thread_data *td,
1777                 char *file, int is_buf, int stonewall_flag, int type,
1778                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1779 {
1780         bool global = false;
1781         char *string;
1782         FILE *f;
1783         char *p;
1784         int ret = 0, stonewall;
1785         int first_sect = 1;
1786         int skip_fgets = 0;
1787         int inside_skip = 0;
1788         char **opts;
1789         int i, alloc_opts, num_opts;
1790
1791         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1792         assert(td || !nested);
1793
1794         if (is_buf)
1795                 f = NULL;
1796         else {
1797                 if (!strcmp(file, "-"))
1798                         f = stdin;
1799                 else
1800                         f = fopen(file, "r");
1801
1802                 if (!f) {
1803                         int __err = errno;
1804
1805                         log_err("fio: unable to open '%s' job file\n", file);
1806                         if (td)
1807                                 td_verror(td, __err, "job file open");
1808                         return 1;
1809                 }
1810         }
1811
1812         string = malloc(4096);
1813
1814         /*
1815          * it's really 256 + small bit, 280 should suffice
1816          */
1817         if (!nested) {
1818                 name = malloc(280);
1819                 memset(name, 0, 280);
1820         }
1821
1822         opts = NULL;
1823         if (nested && popts) {
1824                 opts = *popts;
1825                 alloc_opts = *aopts;
1826                 num_opts = *nopts;
1827         }
1828
1829         if (!opts) {
1830                 alloc_opts = 8;
1831                 opts = malloc(sizeof(char *) * alloc_opts);
1832                 num_opts = 0;
1833         }
1834
1835         stonewall = stonewall_flag;
1836         do {
1837                 /*
1838                  * if skip_fgets is set, we already have loaded a line we
1839                  * haven't handled.
1840                  */
1841                 if (!skip_fgets) {
1842                         if (is_buf)
1843                                 p = strsep(&file, "\n");
1844                         else
1845                                 p = fgets(string, 4096, f);
1846                         if (!p)
1847                                 break;
1848                 }
1849
1850                 skip_fgets = 0;
1851                 strip_blank_front(&p);
1852                 strip_blank_end(p);
1853
1854                 dprint(FD_PARSE, "%s\n", p);
1855                 if (is_empty_or_comment(p))
1856                         continue;
1857
1858                 if (!nested) {
1859                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1860                                 if (inside_skip)
1861                                         continue;
1862
1863                                 log_err("fio: option <%s> outside of "
1864                                         "[] job section\n", p);
1865                                 ret = 1;
1866                                 break;
1867                         }
1868
1869                         name[strlen(name) - 1] = '\0';
1870
1871                         if (skip_this_section(name)) {
1872                                 inside_skip = 1;
1873                                 continue;
1874                         } else
1875                                 inside_skip = 0;
1876
1877                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1878
1879                         global = !strncmp(name, "global", 6);
1880
1881                         if (dump_cmdline) {
1882                                 if (first_sect)
1883                                         log_info("fio ");
1884                                 if (!global)
1885                                         log_info("--name=%s ", name);
1886                                 first_sect = 0;
1887                         }
1888
1889                         td = get_new_job(global, &def_thread, false, name);
1890                         if (!td) {
1891                                 ret = 1;
1892                                 break;
1893                         }
1894
1895                         /*
1896                          * Separate multiple job files by a stonewall
1897                          */
1898                         if (!global && stonewall) {
1899                                 td->o.stonewall = stonewall;
1900                                 stonewall = 0;
1901                         }
1902
1903                         num_opts = 0;
1904                         memset(opts, 0, alloc_opts * sizeof(char *));
1905                 }
1906                 else
1907                         skip_fgets = 1;
1908
1909                 while (1) {
1910                         if (!skip_fgets) {
1911                                 if (is_buf)
1912                                         p = strsep(&file, "\n");
1913                                 else
1914                                         p = fgets(string, 4096, f);
1915                                 if (!p)
1916                                         break;
1917                                 dprint(FD_PARSE, "%s", p);
1918                         }
1919                         else
1920                                 skip_fgets = 0;
1921
1922                         if (is_empty_or_comment(p))
1923                                 continue;
1924
1925                         strip_blank_front(&p);
1926
1927                         /*
1928                          * new section, break out and make sure we don't
1929                          * fgets() a new line at the top.
1930                          */
1931                         if (p[0] == '[') {
1932                                 if (nested) {
1933                                         log_err("No new sections in included files\n");
1934                                         return 1;
1935                                 }
1936
1937                                 skip_fgets = 1;
1938                                 break;
1939                         }
1940
1941                         strip_blank_end(p);
1942
1943                         if (!strncmp(p, "include", strlen("include"))) {
1944                                 char *filename = p + strlen("include") + 1,
1945                                         *ts, *full_fn = NULL;
1946
1947                                 /*
1948                                  * Allow for the include filename
1949                                  * specification to be relative.
1950                                  */
1951                                 if (access(filename, F_OK) &&
1952                                     (ts = strrchr(file, '/'))) {
1953                                         int len = ts - file +
1954                                                 strlen(filename) + 2;
1955
1956                                         if (!(full_fn = calloc(1, len))) {
1957                                                 ret = ENOMEM;
1958                                                 break;
1959                                         }
1960
1961                                         strncpy(full_fn,
1962                                                 file, (ts - file) + 1);
1963                                         strncpy(full_fn + (ts - file) + 1,
1964                                                 filename, strlen(filename));
1965                                         full_fn[len - 1] = 0;
1966                                         filename = full_fn;
1967                                 }
1968
1969                                 ret = __parse_jobs_ini(td, filename, is_buf,
1970                                                        stonewall_flag, type, 1,
1971                                                        name, &opts,
1972                                                        &alloc_opts, &num_opts);
1973
1974                                 if (ret) {
1975                                         log_err("Error %d while parsing "
1976                                                 "include file %s\n",
1977                                                 ret, filename);
1978                                 }
1979
1980                                 if (full_fn)
1981                                         free(full_fn);
1982
1983                                 if (ret)
1984                                         break;
1985
1986                                 continue;
1987                         }
1988
1989                         if (num_opts == alloc_opts) {
1990                                 alloc_opts <<= 1;
1991                                 opts = realloc(opts,
1992                                                 alloc_opts * sizeof(char *));
1993                         }
1994
1995                         opts[num_opts] = strdup(p);
1996                         num_opts++;
1997                 }
1998
1999                 if (nested) {
2000                         *popts = opts;
2001                         *aopts = alloc_opts;
2002                         *nopts = num_opts;
2003                         goto out;
2004                 }
2005
2006                 ret = fio_options_parse(td, opts, num_opts);
2007                 if (!ret) {
2008                         if (dump_cmdline)
2009                                 dump_opt_list(td);
2010
2011                         ret = add_job(td, name, 0, 0, type);
2012                 } else {
2013                         log_err("fio: job %s dropped\n", name);
2014                         put_job(td);
2015                 }
2016
2017                 for (i = 0; i < num_opts; i++)
2018                         free(opts[i]);
2019                 num_opts = 0;
2020         } while (!ret);
2021
2022         if (dump_cmdline)
2023                 log_info("\n");
2024
2025         i = 0;
2026         while (i < nr_job_sections) {
2027                 free(job_sections[i]);
2028                 i++;
2029         }
2030
2031         free(opts);
2032 out:
2033         free(string);
2034         if (!nested)
2035                 free(name);
2036         if (!is_buf && f != stdin)
2037                 fclose(f);
2038         return ret;
2039 }
2040
2041 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2042 {
2043         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2044                         0, NULL, NULL, NULL, NULL);
2045 }
2046
2047 static int fill_def_thread(void)
2048 {
2049         memset(&def_thread, 0, sizeof(def_thread));
2050         INIT_FLIST_HEAD(&def_thread.opt_list);
2051
2052         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2053         def_thread.o.error_dump = 1;
2054
2055         /*
2056          * fill default options
2057          */
2058         fio_fill_default_options(&def_thread);
2059         return 0;
2060 }
2061
2062 static void show_debug_categories(void)
2063 {
2064 #ifdef FIO_INC_DEBUG
2065         struct debug_level *dl = &debug_levels[0];
2066         int curlen, first = 1;
2067
2068         curlen = 0;
2069         while (dl->name) {
2070                 int has_next = (dl + 1)->name != NULL;
2071
2072                 if (first || curlen + strlen(dl->name) >= 80) {
2073                         if (!first) {
2074                                 printf("\n");
2075                                 curlen = 0;
2076                         }
2077                         curlen += printf("\t\t\t%s", dl->name);
2078                         curlen += 3 * (8 - 1);
2079                         if (has_next)
2080                                 curlen += printf(",");
2081                 } else {
2082                         curlen += printf("%s", dl->name);
2083                         if (has_next)
2084                                 curlen += printf(",");
2085                 }
2086                 dl++;
2087                 first = 0;
2088         }
2089         printf("\n");
2090 #endif
2091 }
2092
2093 /*
2094  * Following options aren't printed by usage().
2095  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2096  * --latency-log - Deprecated option.
2097  */
2098 static void usage(const char *name)
2099 {
2100         printf("%s\n", fio_version_string);
2101         printf("%s [options] [job options] <job file(s)>\n", name);
2102         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2103         show_debug_categories();
2104         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2105         printf("  --output\t\tWrite output to file\n");
2106         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2107         printf("  --minimal\t\tMinimal (terse) output\n");
2108         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2109         printf("  --terse-version=type\tSet terse version output format"
2110                 " (default 3, or 2 or 4)\n");
2111         printf("  --version\t\tPrint version info and exit\n");
2112         printf("  --help\t\tPrint this page\n");
2113         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2114         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2115         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2116                 " them\n");
2117         printf("  --enghelp=engine\tPrint ioengine help, or list"
2118                 " available ioengines\n");
2119         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2120                 " cmd\n");
2121         printf("  --showcmd\t\tTurn a job file into command line options\n");
2122         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2123         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2124         printf("  --eta-newline=time\tForce a new line for every 'time'");
2125         printf(" period passed\n");
2126         printf("  --status-interval=t\tForce full status dump every");
2127         printf(" 't' period passed\n");
2128         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2129                 " writes\n");
2130         printf("  --section=name\tOnly run specified section in job file,"
2131                 " multiple sections can be specified\n");
2132         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2133                 " (def 16384)\n");
2134         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2135         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2136         printf("  --server=args\t\tStart a backend fio server\n");
2137         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2138         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2139         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2140         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2141                 "\t\t\t(option=system,percpu) or run unit work\n"
2142                 "\t\t\tcalibration only (option=calibrate)\n");
2143 #ifdef CONFIG_ZLIB
2144         printf("  --inflate-log=log\tInflate and output compressed log\n");
2145 #endif
2146         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2147         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2148         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2149         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2150         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2151         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2152 }
2153
2154 #ifdef FIO_INC_DEBUG
2155 struct debug_level debug_levels[] = {
2156         { .name = "process",
2157           .help = "Process creation/exit logging",
2158           .shift = FD_PROCESS,
2159         },
2160         { .name = "file",
2161           .help = "File related action logging",
2162           .shift = FD_FILE,
2163         },
2164         { .name = "io",
2165           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2166           .shift = FD_IO,
2167         },
2168         { .name = "mem",
2169           .help = "Memory allocation/freeing logging",
2170           .shift = FD_MEM,
2171         },
2172         { .name = "blktrace",
2173           .help = "blktrace action logging",
2174           .shift = FD_BLKTRACE,
2175         },
2176         { .name = "verify",
2177           .help = "IO verification action logging",
2178           .shift = FD_VERIFY,
2179         },
2180         { .name = "random",
2181           .help = "Random generation logging",
2182           .shift = FD_RANDOM,
2183         },
2184         { .name = "parse",
2185           .help = "Parser logging",
2186           .shift = FD_PARSE,
2187         },
2188         { .name = "diskutil",
2189           .help = "Disk utility logging actions",
2190           .shift = FD_DISKUTIL,
2191         },
2192         { .name = "job",
2193           .help = "Logging related to creating/destroying jobs",
2194           .shift = FD_JOB,
2195         },
2196         { .name = "mutex",
2197           .help = "Mutex logging",
2198           .shift = FD_MUTEX
2199         },
2200         { .name = "profile",
2201           .help = "Logging related to profiles",
2202           .shift = FD_PROFILE,
2203         },
2204         { .name = "time",
2205           .help = "Logging related to time keeping functions",
2206           .shift = FD_TIME,
2207         },
2208         { .name = "net",
2209           .help = "Network logging",
2210           .shift = FD_NET,
2211         },
2212         { .name = "rate",
2213           .help = "Rate logging",
2214           .shift = FD_RATE,
2215         },
2216         { .name = "compress",
2217           .help = "Log compression logging",
2218           .shift = FD_COMPRESS,
2219         },
2220         { .name = "steadystate",
2221           .help = "Steady state detection logging",
2222           .shift = FD_STEADYSTATE,
2223         },
2224         { .name = "helperthread",
2225           .help = "Helper thread logging",
2226           .shift = FD_HELPERTHREAD,
2227         },
2228         { .name = NULL, },
2229 };
2230
2231 static int set_debug(const char *string)
2232 {
2233         struct debug_level *dl;
2234         char *p = (char *) string;
2235         char *opt;
2236         int i;
2237
2238         if (!string)
2239                 return 0;
2240
2241         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2242                 log_info("fio: dumping debug options:");
2243                 for (i = 0; debug_levels[i].name; i++) {
2244                         dl = &debug_levels[i];
2245                         log_info("%s,", dl->name);
2246                 }
2247                 log_info("all\n");
2248                 return 1;
2249         }
2250
2251         while ((opt = strsep(&p, ",")) != NULL) {
2252                 int found = 0;
2253
2254                 if (!strncmp(opt, "all", 3)) {
2255                         log_info("fio: set all debug options\n");
2256                         fio_debug = ~0UL;
2257                         continue;
2258                 }
2259
2260                 for (i = 0; debug_levels[i].name; i++) {
2261                         dl = &debug_levels[i];
2262                         found = !strncmp(opt, dl->name, strlen(dl->name));
2263                         if (!found)
2264                                 continue;
2265
2266                         if (dl->shift == FD_JOB) {
2267                                 opt = strchr(opt, ':');
2268                                 if (!opt) {
2269                                         log_err("fio: missing job number\n");
2270                                         break;
2271                                 }
2272                                 opt++;
2273                                 fio_debug_jobno = atoi(opt);
2274                                 log_info("fio: set debug jobno %d\n",
2275                                                         fio_debug_jobno);
2276                         } else {
2277                                 log_info("fio: set debug option %s\n", opt);
2278                                 fio_debug |= (1UL << dl->shift);
2279                         }
2280                         break;
2281                 }
2282
2283                 if (!found)
2284                         log_err("fio: debug mask %s not found\n", opt);
2285         }
2286         return 0;
2287 }
2288 #else
2289 static int set_debug(const char *string)
2290 {
2291         log_err("fio: debug tracing not included in build\n");
2292         return 1;
2293 }
2294 #endif
2295
2296 static void fio_options_fill_optstring(void)
2297 {
2298         char *ostr = cmd_optstr;
2299         int i, c;
2300
2301         c = i = 0;
2302         while (l_opts[i].name) {
2303                 ostr[c++] = l_opts[i].val;
2304                 if (l_opts[i].has_arg == required_argument)
2305                         ostr[c++] = ':';
2306                 else if (l_opts[i].has_arg == optional_argument) {
2307                         ostr[c++] = ':';
2308                         ostr[c++] = ':';
2309                 }
2310                 i++;
2311         }
2312         ostr[c] = '\0';
2313 }
2314
2315 static int client_flag_set(char c)
2316 {
2317         int i;
2318
2319         i = 0;
2320         while (l_opts[i].name) {
2321                 int val = l_opts[i].val;
2322
2323                 if (c == (val & 0xff))
2324                         return (val & FIO_CLIENT_FLAG);
2325
2326                 i++;
2327         }
2328
2329         return 0;
2330 }
2331
2332 static void parse_cmd_client(void *client, char *opt)
2333 {
2334         fio_client_add_cmd_option(client, opt);
2335 }
2336
2337 static void show_closest_option(const char *name)
2338 {
2339         int best_option, best_distance;
2340         int i, distance;
2341
2342         while (*name == '-')
2343                 name++;
2344
2345         best_option = -1;
2346         best_distance = INT_MAX;
2347         i = 0;
2348         while (l_opts[i].name) {
2349                 distance = string_distance(name, l_opts[i].name);
2350                 if (distance < best_distance) {
2351                         best_distance = distance;
2352                         best_option = i;
2353                 }
2354                 i++;
2355         }
2356
2357         if (best_option != -1 && string_distance_ok(name, best_distance))
2358                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2359 }
2360
2361 static int parse_output_format(const char *optarg)
2362 {
2363         char *p, *orig, *opt;
2364         int ret = 0;
2365
2366         p = orig = strdup(optarg);
2367
2368         output_format = 0;
2369
2370         while ((opt = strsep(&p, ",")) != NULL) {
2371                 if (!strcmp(opt, "minimal") ||
2372                     !strcmp(opt, "terse") ||
2373                     !strcmp(opt, "csv"))
2374                         output_format |= FIO_OUTPUT_TERSE;
2375                 else if (!strcmp(opt, "json"))
2376                         output_format |= FIO_OUTPUT_JSON;
2377                 else if (!strcmp(opt, "json+"))
2378                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2379                 else if (!strcmp(opt, "normal"))
2380                         output_format |= FIO_OUTPUT_NORMAL;
2381                 else {
2382                         log_err("fio: invalid output format %s\n", opt);
2383                         ret = 1;
2384                         break;
2385                 }
2386         }
2387
2388         free(orig);
2389         return ret;
2390 }
2391
2392 int parse_cmd_line(int argc, char *argv[], int client_type)
2393 {
2394         struct thread_data *td = NULL;
2395         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2396         char *ostr = cmd_optstr;
2397         char *pid_file = NULL;
2398         void *cur_client = NULL;
2399         int backend = 0;
2400
2401         /*
2402          * Reset optind handling, since we may call this multiple times
2403          * for the backend.
2404          */
2405         optind = 1;
2406
2407         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2408                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2409                         parse_cmd_client(cur_client, argv[optind - 1]);
2410                         c &= ~FIO_CLIENT_FLAG;
2411                 }
2412
2413                 switch (c) {
2414                 case 'a':
2415                         smalloc_pool_size = atoi(optarg);
2416                         smalloc_pool_size <<= 10;
2417                         sinit();
2418                         break;
2419                 case 'l':
2420                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2421                         do_exit++;
2422                         exit_val = 1;
2423                         break;
2424                 case 'b':
2425                         write_bw_log = 1;
2426                         break;
2427                 case 'o': {
2428                         FILE *tmp;
2429
2430                         if (f_out && f_out != stdout)
2431                                 fclose(f_out);
2432
2433                         tmp = fopen(optarg, "w+");
2434                         if (!tmp) {
2435                                 log_err("fio: output file open error: %s\n", strerror(errno));
2436                                 exit_val = 1;
2437                                 do_exit++;
2438                                 break;
2439                         }
2440                         f_err = f_out = tmp;
2441                         break;
2442                         }
2443                 case 'm':
2444                         output_format = FIO_OUTPUT_TERSE;
2445                         break;
2446                 case 'F':
2447                         if (parse_output_format(optarg)) {
2448                                 log_err("fio: failed parsing output-format\n");
2449                                 exit_val = 1;
2450                                 do_exit++;
2451                                 break;
2452                         }
2453                         break;
2454                 case 'f':
2455                         output_format |= FIO_OUTPUT_TERSE;
2456                         break;
2457                 case 'h':
2458                         did_arg = true;
2459                         if (!cur_client) {
2460                                 usage(argv[0]);
2461                                 do_exit++;
2462                         }
2463                         break;
2464                 case 'c':
2465                         did_arg = true;
2466                         if (!cur_client) {
2467                                 fio_show_option_help(optarg);
2468                                 do_exit++;
2469                         }
2470                         break;
2471                 case 'i':
2472                         did_arg = true;
2473                         if (!cur_client) {
2474                                 fio_show_ioengine_help(optarg);
2475                                 do_exit++;
2476                         }
2477                         break;
2478                 case 's':
2479                         did_arg = true;
2480                         dump_cmdline = 1;
2481                         break;
2482                 case 'r':
2483                         read_only = 1;
2484                         break;
2485                 case 'v':
2486                         did_arg = true;
2487                         if (!cur_client) {
2488                                 log_info("%s\n", fio_version_string);
2489                                 do_exit++;
2490                         }
2491                         break;
2492                 case 'V':
2493                         terse_version = atoi(optarg);
2494                         if (!(terse_version >= 2 && terse_version <= 5)) {
2495                                 log_err("fio: bad terse version format\n");
2496                                 exit_val = 1;
2497                                 do_exit++;
2498                         }
2499                         break;
2500                 case 'e':
2501                         if (!strcmp("always", optarg))
2502                                 eta_print = FIO_ETA_ALWAYS;
2503                         else if (!strcmp("never", optarg))
2504                                 eta_print = FIO_ETA_NEVER;
2505                         break;
2506                 case 'E': {
2507                         long long t = 0;
2508
2509                         if (check_str_time(optarg, &t, 1)) {
2510                                 log_err("fio: failed parsing eta time %s\n", optarg);
2511                                 exit_val = 1;
2512                                 do_exit++;
2513                                 break;
2514                         }
2515                         eta_new_line = t / 1000;
2516                         if (!eta_new_line) {
2517                                 log_err("fio: eta new line time too short\n");
2518                                 exit_val = 1;
2519                                 do_exit++;
2520                         }
2521                         break;
2522                         }
2523                 case 'O': {
2524                         long long t = 0;
2525
2526                         if (check_str_time(optarg, &t, 1)) {
2527                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2528                                 exit_val = 1;
2529                                 do_exit++;
2530                                 break;
2531                         }
2532                         eta_interval_msec = t / 1000;
2533                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2534                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2535                                 exit_val = 1;
2536                                 do_exit++;
2537                         }
2538                         break;
2539                         }
2540                 case 'd':
2541                         if (set_debug(optarg))
2542                                 do_exit++;
2543                         break;
2544                 case 'P':
2545                         did_arg = true;
2546                         parse_only = 1;
2547                         break;
2548                 case 'x': {
2549                         size_t new_size;
2550
2551                         if (!strcmp(optarg, "global")) {
2552                                 log_err("fio: can't use global as only "
2553                                         "section\n");
2554                                 do_exit++;
2555                                 exit_val = 1;
2556                                 break;
2557                         }
2558                         new_size = (nr_job_sections + 1) * sizeof(char *);
2559                         job_sections = realloc(job_sections, new_size);
2560                         job_sections[nr_job_sections] = strdup(optarg);
2561                         nr_job_sections++;
2562                         break;
2563                         }
2564 #ifdef CONFIG_ZLIB
2565                 case 'X':
2566                         exit_val = iolog_file_inflate(optarg);
2567                         did_arg = true;
2568                         do_exit++;
2569                         break;
2570 #endif
2571                 case 'p':
2572                         did_arg = true;
2573                         if (exec_profile)
2574                                 free(exec_profile);
2575                         exec_profile = strdup(optarg);
2576                         break;
2577                 case FIO_GETOPT_JOB: {
2578                         const char *opt = l_opts[lidx].name;
2579                         char *val = optarg;
2580
2581                         if (!strncmp(opt, "name", 4) && td) {
2582                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2583                                 if (ret)
2584                                         goto out_free;
2585                                 td = NULL;
2586                                 did_arg = true;
2587                         }
2588                         if (!td) {
2589                                 int is_section = !strncmp(opt, "name", 4);
2590                                 int global = 0;
2591
2592                                 if (!is_section || !strncmp(val, "global", 6))
2593                                         global = 1;
2594
2595                                 if (is_section && skip_this_section(val))
2596                                         continue;
2597
2598                                 td = get_new_job(global, &def_thread, true, NULL);
2599                                 if (!td || ioengine_load(td)) {
2600                                         if (td) {
2601                                                 put_job(td);
2602                                                 td = NULL;
2603                                         }
2604                                         do_exit++;
2605                                         exit_val = 1;
2606                                         break;
2607                                 }
2608                                 fio_options_set_ioengine_opts(l_opts, td);
2609                         }
2610
2611                         if ((!val || !strlen(val)) &&
2612                             l_opts[lidx].has_arg == required_argument) {
2613                                 log_err("fio: option %s requires an argument\n", opt);
2614                                 ret = 1;
2615                         } else
2616                                 ret = fio_cmd_option_parse(td, opt, val);
2617
2618                         if (ret) {
2619                                 if (td) {
2620                                         put_job(td);
2621                                         td = NULL;
2622                                 }
2623                                 do_exit++;
2624                                 exit_val = 1;
2625                         }
2626
2627                         if (!ret && !strcmp(opt, "ioengine")) {
2628                                 if (ioengine_load(td)) {
2629                                         put_job(td);
2630                                         td = NULL;
2631                                         do_exit++;
2632                                         exit_val = 1;
2633                                         break;
2634                                 }
2635                                 fio_options_set_ioengine_opts(l_opts, td);
2636                         }
2637                         break;
2638                 }
2639                 case FIO_GETOPT_IOENGINE: {
2640                         const char *opt = l_opts[lidx].name;
2641                         char *val = optarg;
2642
2643                         if (!td)
2644                                 break;
2645
2646                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2647                         break;
2648                 }
2649                 case 'w':
2650                         warnings_fatal = 1;
2651                         break;
2652                 case 'j':
2653                         max_jobs = atoi(optarg);
2654                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2655                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2656                                 do_exit++;
2657                                 exit_val = 1;
2658                         }
2659                         break;
2660                 case 'S':
2661                         did_arg = true;
2662 #ifndef CONFIG_NO_SHM
2663                         if (nr_clients) {
2664                                 log_err("fio: can't be both client and server\n");
2665                                 do_exit++;
2666                                 exit_val = 1;
2667                                 break;
2668                         }
2669                         if (optarg)
2670                                 fio_server_set_arg(optarg);
2671                         is_backend = 1;
2672                         backend = 1;
2673 #else
2674                         log_err("fio: client/server requires SHM support\n");
2675                         do_exit++;
2676                         exit_val = 1;
2677 #endif
2678                         break;
2679                 case 'D':
2680                         if (pid_file)
2681                                 free(pid_file);
2682                         pid_file = strdup(optarg);
2683                         break;
2684                 case 'I':
2685                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2686                                 /* exit on error and calibration only */
2687                                 did_arg = true;
2688                                 do_exit++;
2689                                 if (ret == -1)
2690                                         exit_val = 1;
2691                         }
2692                         break;
2693                 case 'C':
2694                         did_arg = true;
2695                         if (is_backend) {
2696                                 log_err("fio: can't be both client and server\n");
2697                                 do_exit++;
2698                                 exit_val = 1;
2699                                 break;
2700                         }
2701                         /* if --client parameter contains a pathname */
2702                         if (0 == access(optarg, R_OK)) {
2703                                 /* file contains a list of host addrs or names */
2704                                 char hostaddr[PATH_MAX] = {0};
2705                                 char formatstr[8];
2706                                 FILE * hostf = fopen(optarg, "r");
2707                                 if (!hostf) {
2708                                         log_err("fio: could not open client list file %s for read\n", optarg);
2709                                         do_exit++;
2710                                         exit_val = 1;
2711                                         break;
2712                                 }
2713                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2714                                 /*
2715                                  * read at most PATH_MAX-1 chars from each
2716                                  * record in this file
2717                                  */
2718                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2719                                         /* expect EVERY host in file to be valid */
2720                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2721                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2722                                                 do_exit++;
2723                                                 exit_val = 1;
2724                                                 break;
2725                                         }
2726                                 }
2727                                 fclose(hostf);
2728                                 break; /* no possibility of job file for "this client only" */
2729                         }
2730                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2731                                 log_err("fio: failed adding client %s\n", optarg);
2732                                 do_exit++;
2733                                 exit_val = 1;
2734                                 break;
2735                         }
2736                         /*
2737                          * If the next argument exists and isn't an option,
2738                          * assume it's a job file for this client only.
2739                          */
2740                         while (optind < argc) {
2741                                 if (!strncmp(argv[optind], "--", 2) ||
2742                                     !strncmp(argv[optind], "-", 1))
2743                                         break;
2744
2745                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2746                                         break;
2747                                 optind++;
2748                         }
2749                         break;
2750                 case 'R':
2751                         did_arg = true;
2752                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2753                                 do_exit++;
2754                                 exit_val = 1;
2755                         }
2756                         break;
2757                 case 'T':
2758                         did_arg = true;
2759                         do_exit++;
2760                         exit_val = fio_monotonic_clocktest(1);
2761                         break;
2762                 case 'G':
2763                         did_arg = true;
2764                         do_exit++;
2765                         exit_val = fio_crctest(optarg);
2766                         break;
2767                 case 'M':
2768                         did_arg = true;
2769                         do_exit++;
2770                         exit_val = fio_memcpy_test(optarg);
2771                         break;
2772                 case 'L': {
2773                         long long val;
2774
2775                         if (check_str_time(optarg, &val, 1)) {
2776                                 log_err("fio: failed parsing time %s\n", optarg);
2777                                 do_exit++;
2778                                 exit_val = 1;
2779                                 break;
2780                         }
2781                         if (val < 1000) {
2782                                 log_err("fio: status interval too small\n");
2783                                 do_exit++;
2784                                 exit_val = 1;
2785                         }
2786                         status_interval = val / 1000;
2787                         break;
2788                         }
2789                 case 'W':
2790                         if (trigger_file)
2791                                 free(trigger_file);
2792                         trigger_file = strdup(optarg);
2793                         break;
2794                 case 'H':
2795                         if (trigger_cmd)
2796                                 free(trigger_cmd);
2797                         trigger_cmd = strdup(optarg);
2798                         break;
2799                 case 'J':
2800                         if (trigger_remote_cmd)
2801                                 free(trigger_remote_cmd);
2802                         trigger_remote_cmd = strdup(optarg);
2803                         break;
2804                 case 'K':
2805                         if (aux_path)
2806                                 free(aux_path);
2807                         aux_path = strdup(optarg);
2808                         break;
2809                 case 'B':
2810                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2811                                 log_err("fio: failed parsing time %s\n", optarg);
2812                                 do_exit++;
2813                                 exit_val = 1;
2814                         }
2815                         trigger_timeout /= 1000000;
2816                         break;
2817                 case '?':
2818                         log_err("%s: unrecognized option '%s'\n", argv[0],
2819                                                         argv[optind - 1]);
2820                         show_closest_option(argv[optind - 1]);
2821                 default:
2822                         do_exit++;
2823                         exit_val = 1;
2824                         break;
2825                 }
2826                 if (do_exit)
2827                         break;
2828         }
2829
2830         if (do_exit && !(is_backend || nr_clients))
2831                 exit(exit_val);
2832
2833         if (nr_clients && fio_clients_connect())
2834                 exit(1);
2835
2836         if (is_backend && backend)
2837                 return fio_start_server(pid_file);
2838         else if (pid_file)
2839                 free(pid_file);
2840
2841         if (td) {
2842                 if (!ret) {
2843                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2844                         if (ret)
2845                                 exit(1);
2846                 }
2847         }
2848
2849         while (!ret && optind < argc) {
2850                 ini_idx++;
2851                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2852                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2853                 optind++;
2854         }
2855
2856 out_free:
2857         return ini_idx;
2858 }
2859
2860 int fio_init_options(void)
2861 {
2862         f_out = stdout;
2863         f_err = stderr;
2864
2865         fio_options_fill_optstring();
2866         fio_options_dup_and_init(l_opts);
2867
2868         atexit(free_shm);
2869
2870         if (fill_def_thread())
2871                 return 1;
2872
2873         return 0;
2874 }
2875
2876 extern int fio_check_options(struct thread_options *);
2877
2878 int parse_options(int argc, char *argv[])
2879 {
2880         const int type = FIO_CLIENT_TYPE_CLI;
2881         int job_files, i;
2882
2883         if (fio_init_options())
2884                 return 1;
2885         if (fio_test_cconv(&def_thread.o))
2886                 log_err("fio: failed internal cconv test\n");
2887
2888         job_files = parse_cmd_line(argc, argv, type);
2889
2890         if (job_files > 0) {
2891                 for (i = 0; i < job_files; i++) {
2892                         if (i && fill_def_thread())
2893                                 return 1;
2894                         if (nr_clients) {
2895                                 if (fio_clients_send_ini(ini_file[i]))
2896                                         return 1;
2897                                 free(ini_file[i]);
2898                         } else if (!is_backend) {
2899                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2900                                         return 1;
2901                                 free(ini_file[i]);
2902                         }
2903                 }
2904         } else if (nr_clients) {
2905                 if (fill_def_thread())
2906                         return 1;
2907                 if (fio_clients_send_ini(NULL))
2908                         return 1;
2909         }
2910
2911         free(ini_file);
2912         fio_options_free(&def_thread);
2913         filesetup_mem_free();
2914
2915         if (!thread_number) {
2916                 if (parse_dryrun())
2917                         return 0;
2918                 if (exec_profile)
2919                         return 0;
2920                 if (is_backend || nr_clients)
2921                         return 0;
2922                 if (did_arg)
2923                         return 0;
2924
2925                 log_err("No job(s) defined\n\n");
2926                 usage(argv[0]);
2927                 return 1;
2928         }
2929
2930         if (output_format & FIO_OUTPUT_NORMAL)
2931                 log_info("%s\n", fio_version_string);
2932
2933         return 0;
2934 }
2935
2936 void options_default_fill(struct thread_options *o)
2937 {
2938         memcpy(o, &def_thread.o, sizeof(*o));
2939 }
2940
2941 struct thread_data *get_global_options(void)
2942 {
2943         return &def_thread;
2944 }