init.c revision 627aa1a8477290140a342a7bf344a84bc5bed762
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#ifndef FIO_NO_HAVE_SHM_H 13#include <sys/shm.h> 14#endif 15#include <sys/types.h> 16#include <sys/stat.h> 17 18#include "fio.h" 19#include "parse.h" 20#include "smalloc.h" 21#include "filehash.h" 22#include "verify.h" 23#include "profile.h" 24#include "server.h" 25#include "idletime.h" 26 27#include "lib/getopt.h" 28 29const char fio_version_string[] = FIO_VERSION; 30 31#define FIO_RANDSEED (0xb1899bedUL) 32 33static char **ini_file; 34static int max_jobs = FIO_MAX_JOBS; 35static int dump_cmdline; 36static int def_timeout; 37 38static struct thread_data def_thread; 39struct thread_data *threads = NULL; 40 41int exitall_on_terminate = 0; 42int output_format = FIO_OUTPUT_NORMAL; 43int eta_print; 44unsigned long long mlock_size = 0; 45FILE *f_out = NULL; 46FILE *f_err = NULL; 47char **job_sections = NULL; 48int nr_job_sections = 0; 49char *exec_profile = NULL; 50int warnings_fatal = 0; 51int terse_version = 3; 52int is_backend = 0; 53int nr_clients = 0; 54int log_syslog = 0; 55 56int write_bw_log = 0; 57int read_only = 0; 58 59static int write_lat_log; 60 61static int prev_group_jobs; 62 63unsigned long fio_debug = 0; 64unsigned int fio_debug_jobno = -1; 65unsigned int *fio_debug_jobp = NULL; 66 67static char cmd_optstr[256]; 68static int did_arg; 69 70#define FIO_CLIENT_FLAG (1 << 16) 71 72/* 73 * Command line options. These will contain the above, plus a few 74 * extra that only pertain to fio itself and not jobs. 75 */ 76static struct option l_opts[FIO_NR_OPTIONS] = { 77 { 78 .name = (char *) "output", 79 .has_arg = required_argument, 80 .val = 'o' | FIO_CLIENT_FLAG, 81 }, 82 { 83 .name = (char *) "timeout", 84 .has_arg = required_argument, 85 .val = 't' | FIO_CLIENT_FLAG, 86 }, 87 { 88 .name = (char *) "latency-log", 89 .has_arg = required_argument, 90 .val = 'l' | FIO_CLIENT_FLAG, 91 }, 92 { 93 .name = (char *) "bandwidth-log", 94 .has_arg = required_argument, 95 .val = 'b' | FIO_CLIENT_FLAG, 96 }, 97 { 98 .name = (char *) "minimal", 99 .has_arg = optional_argument, 100 .val = 'm' | FIO_CLIENT_FLAG, 101 }, 102 { 103 .name = (char *) "output-format", 104 .has_arg = optional_argument, 105 .val = 'F' | FIO_CLIENT_FLAG, 106 }, 107 { 108 .name = (char *) "version", 109 .has_arg = no_argument, 110 .val = 'v' | FIO_CLIENT_FLAG, 111 }, 112 { 113 .name = (char *) "help", 114 .has_arg = no_argument, 115 .val = 'h' | FIO_CLIENT_FLAG, 116 }, 117 { 118 .name = (char *) "cmdhelp", 119 .has_arg = optional_argument, 120 .val = 'c' | FIO_CLIENT_FLAG, 121 }, 122 { 123 .name = (char *) "enghelp", 124 .has_arg = optional_argument, 125 .val = 'i' | FIO_CLIENT_FLAG, 126 }, 127 { 128 .name = (char *) "showcmd", 129 .has_arg = no_argument, 130 .val = 's' | FIO_CLIENT_FLAG, 131 }, 132 { 133 .name = (char *) "readonly", 134 .has_arg = no_argument, 135 .val = 'r' | FIO_CLIENT_FLAG, 136 }, 137 { 138 .name = (char *) "eta", 139 .has_arg = required_argument, 140 .val = 'e' | FIO_CLIENT_FLAG, 141 }, 142 { 143 .name = (char *) "debug", 144 .has_arg = required_argument, 145 .val = 'd' | FIO_CLIENT_FLAG, 146 }, 147 { 148 .name = (char *) "section", 149 .has_arg = required_argument, 150 .val = 'x' | FIO_CLIENT_FLAG, 151 }, 152 { 153 .name = (char *) "alloc-size", 154 .has_arg = required_argument, 155 .val = 'a' | FIO_CLIENT_FLAG, 156 }, 157 { 158 .name = (char *) "profile", 159 .has_arg = required_argument, 160 .val = 'p' | FIO_CLIENT_FLAG, 161 }, 162 { 163 .name = (char *) "warnings-fatal", 164 .has_arg = no_argument, 165 .val = 'w' | FIO_CLIENT_FLAG, 166 }, 167 { 168 .name = (char *) "max-jobs", 169 .has_arg = required_argument, 170 .val = 'j' | FIO_CLIENT_FLAG, 171 }, 172 { 173 .name = (char *) "terse-version", 174 .has_arg = required_argument, 175 .val = 'V' | FIO_CLIENT_FLAG, 176 }, 177 { 178 .name = (char *) "server", 179 .has_arg = optional_argument, 180 .val = 'S', 181 }, 182 { .name = (char *) "daemonize", 183 .has_arg = required_argument, 184 .val = 'D', 185 }, 186 { 187 .name = (char *) "client", 188 .has_arg = required_argument, 189 .val = 'C', 190 }, 191 { 192 .name = (char *) "cpuclock-test", 193 .has_arg = no_argument, 194 .val = 'T', 195 }, 196 { 197 .name = (char *) "idle-prof", 198 .has_arg = required_argument, 199 .val = 'I', 200 }, 201 { 202 .name = NULL, 203 }, 204}; 205 206static void free_shm(void) 207{ 208 struct shmid_ds sbuf; 209 210 if (threads) { 211 void *tp = threads; 212 213 threads = NULL; 214 file_hash_exit(); 215 flow_exit(); 216 fio_debug_jobp = NULL; 217 shmdt(tp); 218 shmctl(shm_id, IPC_RMID, &sbuf); 219 } 220 221 scleanup(); 222} 223 224/* 225 * The thread area is shared between the main process and the job 226 * threads/processes. So setup a shared memory segment that will hold 227 * all the job info. We use the end of the region for keeping track of 228 * open files across jobs, for file sharing. 229 */ 230static int setup_thread_area(void) 231{ 232 void *hash; 233 234 if (threads) 235 return 0; 236 237 /* 238 * 1024 is too much on some machines, scale max_jobs if 239 * we get a failure that looks like too large a shm segment 240 */ 241 do { 242 size_t size = max_jobs * sizeof(struct thread_data); 243 244 size += file_hash_size; 245 size += sizeof(unsigned int); 246 247 shm_id = shmget(0, size, IPC_CREAT | 0600); 248 if (shm_id != -1) 249 break; 250 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) { 251 perror("shmget"); 252 break; 253 } 254 255 max_jobs >>= 1; 256 } while (max_jobs); 257 258 if (shm_id == -1) 259 return 1; 260 261 threads = shmat(shm_id, NULL, 0); 262 if (threads == (void *) -1) { 263 perror("shmat"); 264 return 1; 265 } 266 267 memset(threads, 0, max_jobs * sizeof(struct thread_data)); 268 hash = (void *) threads + max_jobs * sizeof(struct thread_data); 269 fio_debug_jobp = (void *) hash + file_hash_size; 270 *fio_debug_jobp = -1; 271 file_hash_init(hash); 272 273 flow_init(); 274 275 return 0; 276} 277 278/* 279 * Return a free job structure. 280 */ 281static struct thread_data *get_new_job(int global, struct thread_data *parent, 282 int preserve_eo) 283{ 284 struct thread_data *td; 285 286 if (global) 287 return &def_thread; 288 if (setup_thread_area()) { 289 log_err("error: failed to setup shm segment\n"); 290 return NULL; 291 } 292 if (thread_number >= max_jobs) { 293 log_err("error: maximum number of jobs (%d) reached.\n", 294 max_jobs); 295 return NULL; 296 } 297 298 td = &threads[thread_number++]; 299 *td = *parent; 300 301 td->io_ops = NULL; 302 if (!preserve_eo) 303 td->eo = NULL; 304 305 td->o.uid = td->o.gid = -1U; 306 307 dup_files(td, parent); 308 fio_options_mem_dupe(td); 309 310 profile_add_hooks(td); 311 312 td->thread_number = thread_number; 313 314 if (!parent || !parent->o.group_reporting) 315 stat_number++; 316 317 return td; 318} 319 320static void put_job(struct thread_data *td) 321{ 322 if (td == &def_thread) 323 return; 324 325 profile_td_exit(td); 326 flow_exit_job(td); 327 328 if (td->error) 329 log_info("fio: %s\n", td->verror); 330 331 fio_options_free(td); 332 if (td->io_ops) 333 free_ioengine(td); 334 335 memset(&threads[td->thread_number - 1], 0, sizeof(*td)); 336 thread_number--; 337} 338 339static int __setup_rate(struct thread_data *td, enum fio_ddir ddir) 340{ 341 unsigned int bs = td->o.min_bs[ddir]; 342 343 assert(ddir_rw(ddir)); 344 345 if (td->o.rate[ddir]) 346 td->rate_bps[ddir] = td->o.rate[ddir]; 347 else 348 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs; 349 350 if (!td->rate_bps[ddir]) { 351 log_err("rate lower than supported\n"); 352 return -1; 353 } 354 355 td->rate_pending_usleep[ddir] = 0; 356 return 0; 357} 358 359static int setup_rate(struct thread_data *td) 360{ 361 int ret = 0; 362 363 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ]) 364 ret = __setup_rate(td, DDIR_READ); 365 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE]) 366 ret |= __setup_rate(td, DDIR_WRITE); 367 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM]) 368 ret |= __setup_rate(td, DDIR_TRIM); 369 370 return ret; 371} 372 373static int fixed_block_size(struct thread_options *o) 374{ 375 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] && 376 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] && 377 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] && 378 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] && 379 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM]; 380} 381 382/* 383 * Lazy way of fixing up options that depend on each other. We could also 384 * define option callback handlers, but this is easier. 385 */ 386static int fixup_options(struct thread_data *td) 387{ 388 struct thread_options *o = &td->o; 389 int ret = 0; 390 391#ifndef FIO_HAVE_PSHARED_MUTEX 392 if (!o->use_thread) { 393 log_info("fio: this platform does not support process shared" 394 " mutexes, forcing use of threads. Use the 'thread'" 395 " option to get rid of this warning.\n"); 396 o->use_thread = 1; 397 ret = warnings_fatal; 398 } 399#endif 400 401 if (o->write_iolog_file && o->read_iolog_file) { 402 log_err("fio: read iolog overrides write_iolog\n"); 403 free(o->write_iolog_file); 404 o->write_iolog_file = NULL; 405 ret = warnings_fatal; 406 } 407 408 /* 409 * only really works with 1 file 410 */ 411 if (o->zone_size && o->open_files > 1) 412 o->zone_size = 0; 413 414 /* 415 * If zone_range isn't specified, backward compatibility dictates it 416 * should be made equal to zone_size. 417 */ 418 if (o->zone_size && !o->zone_range) 419 o->zone_range = o->zone_size; 420 421 /* 422 * Reads can do overwrites, we always need to pre-create the file 423 */ 424 if (td_read(td) || td_rw(td)) 425 o->overwrite = 1; 426 427 if (!o->min_bs[DDIR_READ]) 428 o->min_bs[DDIR_READ] = o->bs[DDIR_READ]; 429 if (!o->max_bs[DDIR_READ]) 430 o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; 431 if (!o->min_bs[DDIR_WRITE]) 432 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 433 if (!o->max_bs[DDIR_WRITE]) 434 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 435 if (!o->min_bs[DDIR_TRIM]) 436 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 437 if (!o->max_bs[DDIR_TRIM]) 438 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 439 440 441 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); 442 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs); 443 444 /* 445 * For random IO, allow blockalign offset other than min_bs. 446 */ 447 if (!o->ba[DDIR_READ] || !td_random(td)) 448 o->ba[DDIR_READ] = o->min_bs[DDIR_READ]; 449 if (!o->ba[DDIR_WRITE] || !td_random(td)) 450 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE]; 451 if (!o->ba[DDIR_TRIM] || !td_random(td)) 452 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM]; 453 454 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] || 455 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] || 456 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) && 457 !o->norandommap) { 458 log_err("fio: Any use of blockalign= turns off randommap\n"); 459 o->norandommap = 1; 460 ret = warnings_fatal; 461 } 462 463 if (!o->file_size_high) 464 o->file_size_high = o->file_size_low; 465 466 if (o->norandommap && o->verify != VERIFY_NONE 467 && !fixed_block_size(o)) { 468 log_err("fio: norandommap given for variable block sizes, " 469 "verify disabled\n"); 470 o->verify = VERIFY_NONE; 471 ret = warnings_fatal; 472 } 473 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) 474 log_err("fio: bs_unaligned may not work with raw io\n"); 475 476 /* 477 * thinktime_spin must be less than thinktime 478 */ 479 if (o->thinktime_spin > o->thinktime) 480 o->thinktime_spin = o->thinktime; 481 482 /* 483 * The low water mark cannot be bigger than the iodepth 484 */ 485 if (o->iodepth_low > o->iodepth || !o->iodepth_low) 486 o->iodepth_low = o->iodepth; 487 488 /* 489 * If batch number isn't set, default to the same as iodepth 490 */ 491 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) 492 o->iodepth_batch = o->iodepth; 493 494 if (o->nr_files > td->files_index) 495 o->nr_files = td->files_index; 496 497 if (o->open_files > o->nr_files || !o->open_files) 498 o->open_files = o->nr_files; 499 500 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) && 501 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) || 502 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) && 503 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) { 504 log_err("fio: rate and rate_iops are mutually exclusive\n"); 505 ret = 1; 506 } 507 if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) || 508 (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) || 509 (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) || 510 (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) || 511 (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) || 512 (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) { 513 log_err("fio: minimum rate exceeds rate\n"); 514 ret = 1; 515 } 516 517 if (!o->timeout && o->time_based) { 518 log_err("fio: time_based requires a runtime/timeout setting\n"); 519 o->time_based = 0; 520 ret = warnings_fatal; 521 } 522 523 if (o->fill_device && !o->size) 524 o->size = -1ULL; 525 526 if (o->verify != VERIFY_NONE) { 527 if (td_write(td) && o->do_verify && o->numjobs > 1) { 528 log_info("Multiple writers may overwrite blocks that " 529 "belong to other jobs. This can cause " 530 "verification failures.\n"); 531 ret = warnings_fatal; 532 } 533 534 o->refill_buffers = 1; 535 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] && 536 !o->verify_interval) 537 o->verify_interval = o->min_bs[DDIR_WRITE]; 538 } 539 540 if (o->pre_read) { 541 o->invalidate_cache = 0; 542 if (td->io_ops->flags & FIO_PIPEIO) { 543 log_info("fio: cannot pre-read files with an IO engine" 544 " that isn't seekable. Pre-read disabled.\n"); 545 ret = warnings_fatal; 546 } 547 } 548 549#ifndef CONFIG_FDATASYNC 550 if (o->fdatasync_blocks) { 551 log_info("fio: this platform does not support fdatasync()" 552 " falling back to using fsync(). Use the 'fsync'" 553 " option instead of 'fdatasync' to get rid of" 554 " this warning\n"); 555 o->fsync_blocks = o->fdatasync_blocks; 556 o->fdatasync_blocks = 0; 557 ret = warnings_fatal; 558 } 559#endif 560 561#ifdef WIN32 562 /* 563 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface, 564 * so fail if we're passed those flags 565 */ 566 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) { 567 log_err("fio: Windows does not support direct or non-buffered io with" 568 " the synchronous ioengines. Use the 'windowsaio' ioengine" 569 " with 'direct=1' and 'iodepth=1' instead.\n"); 570 ret = 1; 571 } 572#endif 573 574 /* 575 * For fully compressible data, just zero them at init time. 576 * It's faster than repeatedly filling it. 577 */ 578 if (td->o.compress_percentage == 100) { 579 td->o.zero_buffers = 1; 580 td->o.compress_percentage = 0; 581 } 582 583 /* 584 * Using a non-uniform random distribution excludes usage of 585 * a random map 586 */ 587 if (td->o.random_distribution != FIO_RAND_DIST_RANDOM) 588 td->o.norandommap = 1; 589 590 return ret; 591} 592 593/* 594 * This function leaks the buffer 595 */ 596static char *to_kmg(unsigned int val) 597{ 598 char *buf = malloc(32); 599 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; 600 char *p = post; 601 602 do { 603 if (val & 1023) 604 break; 605 606 val >>= 10; 607 p++; 608 } while (*p); 609 610 snprintf(buf, 32, "%u%c", val, *p); 611 return buf; 612} 613 614/* External engines are specified by "external:name.o") */ 615static const char *get_engine_name(const char *str) 616{ 617 char *p = strstr(str, ":"); 618 619 if (!p) 620 return str; 621 622 p++; 623 strip_blank_front(&p); 624 strip_blank_end(p); 625 return p; 626} 627 628static int exists_and_not_file(const char *filename) 629{ 630 struct stat sb; 631 632 if (lstat(filename, &sb) == -1) 633 return 0; 634 635 /* \\.\ is the device namespace in Windows, where every file 636 * is a device node */ 637 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0) 638 return 0; 639 640 return 1; 641} 642 643static void td_fill_rand_seeds_os(struct thread_data *td) 644{ 645 os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state); 646 os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state); 647 os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state); 648 649 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 650 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state); 651 652 os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state); 653 os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state); 654 655 if (!td_random(td)) 656 return; 657 658 if (td->o.rand_repeatable) 659 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number; 660 661 os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state); 662} 663 664static void td_fill_rand_seeds_internal(struct thread_data *td) 665{ 666 init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]); 667 init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]); 668 init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]); 669 670 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 671 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]); 672 673 init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]); 674 init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]); 675 676 if (!td_random(td)) 677 return; 678 679 if (td->o.rand_repeatable) 680 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number; 681 682 init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]); 683} 684 685void td_fill_rand_seeds(struct thread_data *td) 686{ 687 if (td->o.use_os_rand) 688 td_fill_rand_seeds_os(td); 689 else 690 td_fill_rand_seeds_internal(td); 691 692 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]); 693} 694 695/* 696 * Initializes the ioengine configured for a job, if it has not been done so 697 * already. 698 */ 699int ioengine_load(struct thread_data *td) 700{ 701 const char *engine; 702 703 /* 704 * Engine has already been loaded. 705 */ 706 if (td->io_ops) 707 return 0; 708 709 engine = get_engine_name(td->o.ioengine); 710 td->io_ops = load_ioengine(td, engine); 711 if (!td->io_ops) { 712 log_err("fio: failed to load engine %s\n", engine); 713 return 1; 714 } 715 716 if (td->io_ops->option_struct_size && td->io_ops->options) { 717 /* 718 * In cases where td->eo is set, clone it for a child thread. 719 * This requires that the parent thread has the same ioengine, 720 * but that requirement must be enforced by the code which 721 * cloned the thread. 722 */ 723 void *origeo = td->eo; 724 /* 725 * Otherwise use the default thread options. 726 */ 727 if (!origeo && td != &def_thread && def_thread.eo && 728 def_thread.io_ops->options == td->io_ops->options) 729 origeo = def_thread.eo; 730 731 options_init(td->io_ops->options); 732 td->eo = malloc(td->io_ops->option_struct_size); 733 /* 734 * Use the default thread as an option template if this uses the 735 * same options structure and there are non-default options 736 * used. 737 */ 738 if (origeo) { 739 memcpy(td->eo, origeo, td->io_ops->option_struct_size); 740 options_mem_dupe(td->eo, td->io_ops->options); 741 } else { 742 memset(td->eo, 0, td->io_ops->option_struct_size); 743 fill_default_options(td->eo, td->io_ops->options); 744 } 745 *(struct thread_data **)td->eo = td; 746 } 747 748 return 0; 749} 750 751static void init_flags(struct thread_data *td) 752{ 753 struct thread_options *o = &td->o; 754 755 if (o->verify_backlog) 756 td->flags |= TD_F_VER_BACKLOG; 757 if (o->trim_backlog) 758 td->flags |= TD_F_TRIM_BACKLOG; 759 if (o->read_iolog_file) 760 td->flags |= TD_F_READ_IOLOG; 761 if (o->refill_buffers) 762 td->flags |= TD_F_REFILL_BUFFERS; 763 if (o->scramble_buffers) 764 td->flags |= TD_F_SCRAMBLE_BUFFERS; 765 if (o->verify != VERIFY_NONE) 766 td->flags |= TD_F_VER_NONE; 767} 768 769static int setup_random_seeds(struct thread_data *td) 770{ 771 unsigned long seed; 772 unsigned int i; 773 774 if (!td->o.rand_repeatable) 775 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds)); 776 777 for (seed = 0x89, i = 0; i < 4; i++) 778 seed *= 0x9e370001UL; 779 780 for (i = 0; i < FIO_RAND_NR_OFFS; i++) { 781 td->rand_seeds[i] = seed; 782 seed *= 0x9e370001UL; 783 } 784 785 td_fill_rand_seeds(td); 786 return 0; 787} 788 789/* 790 * Adds a job to the list of things todo. Sanitizes the various options 791 * to make sure we don't have conflicts, and initializes various 792 * members of td. 793 */ 794static int add_job(struct thread_data *td, const char *jobname, int job_add_num) 795{ 796 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, 797 "randread", "randwrite", "randrw", 798 "trim", NULL, NULL, NULL, "randtrim" }; 799 unsigned int i; 800 char fname[PATH_MAX]; 801 int numjobs, file_alloced; 802 803 /* 804 * the def_thread is just for options, it's not a real job 805 */ 806 if (td == &def_thread) 807 return 0; 808 809 init_flags(td); 810 811 /* 812 * if we are just dumping the output command line, don't add the job 813 */ 814 if (dump_cmdline) { 815 put_job(td); 816 return 0; 817 } 818 819 if (profile_td_init(td)) 820 goto err; 821 822 if (ioengine_load(td)) 823 goto err; 824 825 if (td->o.use_thread) 826 nr_thread++; 827 else 828 nr_process++; 829 830 if (td->o.odirect) 831 td->io_ops->flags |= FIO_RAWIO; 832 833 file_alloced = 0; 834 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) { 835 file_alloced = 1; 836 837 if (td->o.nr_files == 1 && exists_and_not_file(jobname)) 838 add_file(td, jobname); 839 else { 840 for (i = 0; i < td->o.nr_files; i++) { 841 sprintf(fname, "%s.%d.%d", jobname, 842 td->thread_number, i); 843 add_file(td, fname); 844 } 845 } 846 } 847 848 if (fixup_options(td)) 849 goto err; 850 851 flow_init_job(td); 852 853 /* 854 * IO engines only need this for option callbacks, and the address may 855 * change in subprocesses. 856 */ 857 if (td->eo) 858 *(struct thread_data **)td->eo = NULL; 859 860 if (td->io_ops->flags & FIO_DISKLESSIO) { 861 struct fio_file *f; 862 863 for_each_file(td, f, i) 864 f->real_file_size = -1ULL; 865 } 866 867 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED); 868 869 td->ts.clat_percentiles = td->o.clat_percentiles; 870 td->ts.percentile_precision = td->o.percentile_precision; 871 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); 872 873 for (i = 0; i < DDIR_RWDIR_CNT; i++) { 874 td->ts.clat_stat[i].min_val = ULONG_MAX; 875 td->ts.slat_stat[i].min_val = ULONG_MAX; 876 td->ts.lat_stat[i].min_val = ULONG_MAX; 877 td->ts.bw_stat[i].min_val = ULONG_MAX; 878 } 879 td->ddir_seq_nr = td->o.ddir_seq_nr; 880 881 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) { 882 prev_group_jobs = 0; 883 groupid++; 884 } 885 886 td->groupid = groupid; 887 prev_group_jobs++; 888 889 if (setup_random_seeds(td)) { 890 td_verror(td, errno, "init_random_state"); 891 goto err; 892 } 893 894 if (setup_rate(td)) 895 goto err; 896 897 if (td->o.write_lat_log) { 898 setup_log(&td->lat_log, td->o.log_avg_msec); 899 setup_log(&td->slat_log, td->o.log_avg_msec); 900 setup_log(&td->clat_log, td->o.log_avg_msec); 901 } 902 if (td->o.write_bw_log) 903 setup_log(&td->bw_log, td->o.log_avg_msec); 904 if (td->o.write_iops_log) 905 setup_log(&td->iops_log, td->o.log_avg_msec); 906 907 if (!td->o.name) 908 td->o.name = strdup(jobname); 909 910 if (output_format == FIO_OUTPUT_NORMAL) { 911 if (!job_add_num) { 912 if (!strcmp(td->io_ops->name, "cpuio")) { 913 log_info("%s: ioengine=cpu, cpuload=%u," 914 " cpucycle=%u\n", td->o.name, 915 td->o.cpuload, 916 td->o.cpucycle); 917 } else { 918 char *c1, *c2, *c3, *c4, *c5, *c6; 919 920 c1 = to_kmg(td->o.min_bs[DDIR_READ]); 921 c2 = to_kmg(td->o.max_bs[DDIR_READ]); 922 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); 923 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); 924 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]); 925 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]); 926 927 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s," 928 " ioengine=%s, iodepth=%u\n", 929 td->o.name, td->groupid, 930 ddir_str[td->o.td_ddir], 931 c1, c2, c3, c4, c5, c6, 932 td->io_ops->name, 933 td->o.iodepth); 934 935 free(c1); 936 free(c2); 937 free(c3); 938 free(c4); 939 free(c5); 940 free(c6); 941 } 942 } else if (job_add_num == 1) 943 log_info("...\n"); 944 } 945 946 /* 947 * recurse add identical jobs, clear numjobs and stonewall options 948 * as they don't apply to sub-jobs 949 */ 950 numjobs = td->o.numjobs; 951 while (--numjobs) { 952 struct thread_data *td_new = get_new_job(0, td, 1); 953 954 if (!td_new) 955 goto err; 956 957 td_new->o.numjobs = 1; 958 td_new->o.stonewall = 0; 959 td_new->o.new_group = 0; 960 961 if (file_alloced) { 962 td_new->o.filename = NULL; 963 td_new->files_index = 0; 964 td_new->files_size = 0; 965 td_new->files = NULL; 966 } 967 968 job_add_num = numjobs - 1; 969 970 if (add_job(td_new, jobname, job_add_num)) 971 goto err; 972 } 973 974 return 0; 975err: 976 put_job(td); 977 return -1; 978} 979 980/* 981 * Parse as if 'o' was a command line 982 */ 983void add_job_opts(const char **o) 984{ 985 struct thread_data *td, *td_parent; 986 int i, in_global = 1; 987 char jobname[32]; 988 989 i = 0; 990 td_parent = td = NULL; 991 while (o[i]) { 992 if (!strncmp(o[i], "name", 4)) { 993 in_global = 0; 994 if (td) 995 add_job(td, jobname, 0); 996 td = NULL; 997 sprintf(jobname, "%s", o[i] + 5); 998 } 999 if (in_global && !td_parent) 1000 td_parent = get_new_job(1, &def_thread, 0); 1001 else if (!in_global && !td) { 1002 if (!td_parent) 1003 td_parent = &def_thread; 1004 td = get_new_job(0, td_parent, 0); 1005 } 1006 if (in_global) 1007 fio_options_parse(td_parent, (char **) &o[i], 1); 1008 else 1009 fio_options_parse(td, (char **) &o[i], 1); 1010 i++; 1011 } 1012 1013 if (td) 1014 add_job(td, jobname, 0); 1015} 1016 1017static int skip_this_section(const char *name) 1018{ 1019 int i; 1020 1021 if (!nr_job_sections) 1022 return 0; 1023 if (!strncmp(name, "global", 6)) 1024 return 0; 1025 1026 for (i = 0; i < nr_job_sections; i++) 1027 if (!strcmp(job_sections[i], name)) 1028 return 0; 1029 1030 return 1; 1031} 1032 1033static int is_empty_or_comment(char *line) 1034{ 1035 unsigned int i; 1036 1037 for (i = 0; i < strlen(line); i++) { 1038 if (line[i] == ';') 1039 return 1; 1040 if (line[i] == '#') 1041 return 1; 1042 if (!isspace((int) line[i]) && !iscntrl((int) line[i])) 1043 return 0; 1044 } 1045 1046 return 1; 1047} 1048 1049/* 1050 * This is our [ini] type file parser. 1051 */ 1052int parse_jobs_ini(char *file, int is_buf, int stonewall_flag) 1053{ 1054 unsigned int global; 1055 struct thread_data *td; 1056 char *string, *name; 1057 FILE *f; 1058 char *p; 1059 int ret = 0, stonewall; 1060 int first_sect = 1; 1061 int skip_fgets = 0; 1062 int inside_skip = 0; 1063 char **opts; 1064 int i, alloc_opts, num_opts; 1065 1066 if (is_buf) 1067 f = NULL; 1068 else { 1069 if (!strcmp(file, "-")) 1070 f = stdin; 1071 else 1072 f = fopen(file, "r"); 1073 1074 if (!f) { 1075 perror("fopen job file"); 1076 return 1; 1077 } 1078 } 1079 1080 string = malloc(4096); 1081 1082 /* 1083 * it's really 256 + small bit, 280 should suffice 1084 */ 1085 name = malloc(280); 1086 memset(name, 0, 280); 1087 1088 alloc_opts = 8; 1089 opts = malloc(sizeof(char *) * alloc_opts); 1090 num_opts = 0; 1091 1092 stonewall = stonewall_flag; 1093 do { 1094 /* 1095 * if skip_fgets is set, we already have loaded a line we 1096 * haven't handled. 1097 */ 1098 if (!skip_fgets) { 1099 if (is_buf) 1100 p = strsep(&file, "\n"); 1101 else 1102 p = fgets(string, 4096, f); 1103 if (!p) 1104 break; 1105 } 1106 1107 skip_fgets = 0; 1108 strip_blank_front(&p); 1109 strip_blank_end(p); 1110 1111 if (is_empty_or_comment(p)) 1112 continue; 1113 if (sscanf(p, "[%255[^\n]]", name) != 1) { 1114 if (inside_skip) 1115 continue; 1116 log_err("fio: option <%s> outside of [] job section\n", 1117 p); 1118 break; 1119 } 1120 1121 name[strlen(name) - 1] = '\0'; 1122 1123 if (skip_this_section(name)) { 1124 inside_skip = 1; 1125 continue; 1126 } else 1127 inside_skip = 0; 1128 1129 global = !strncmp(name, "global", 6); 1130 1131 if (dump_cmdline) { 1132 if (first_sect) 1133 log_info("fio "); 1134 if (!global) 1135 log_info("--name=%s ", name); 1136 first_sect = 0; 1137 } 1138 1139 td = get_new_job(global, &def_thread, 0); 1140 if (!td) { 1141 ret = 1; 1142 break; 1143 } 1144 1145 /* 1146 * Seperate multiple job files by a stonewall 1147 */ 1148 if (!global && stonewall) { 1149 td->o.stonewall = stonewall; 1150 stonewall = 0; 1151 } 1152 1153 num_opts = 0; 1154 memset(opts, 0, alloc_opts * sizeof(char *)); 1155 1156 while (1) { 1157 if (is_buf) 1158 p = strsep(&file, "\n"); 1159 else 1160 p = fgets(string, 4096, f); 1161 if (!p) 1162 break; 1163 1164 if (is_empty_or_comment(p)) 1165 continue; 1166 1167 strip_blank_front(&p); 1168 1169 /* 1170 * new section, break out and make sure we don't 1171 * fgets() a new line at the top. 1172 */ 1173 if (p[0] == '[') { 1174 skip_fgets = 1; 1175 break; 1176 } 1177 1178 strip_blank_end(p); 1179 1180 if (num_opts == alloc_opts) { 1181 alloc_opts <<= 1; 1182 opts = realloc(opts, 1183 alloc_opts * sizeof(char *)); 1184 } 1185 1186 opts[num_opts] = strdup(p); 1187 num_opts++; 1188 } 1189 1190 ret = fio_options_parse(td, opts, num_opts); 1191 if (!ret) { 1192 if (dump_cmdline) 1193 for (i = 0; i < num_opts; i++) 1194 log_info("--%s ", opts[i]); 1195 1196 ret = add_job(td, name, 0); 1197 } else { 1198 log_err("fio: job %s dropped\n", name); 1199 put_job(td); 1200 } 1201 1202 for (i = 0; i < num_opts; i++) 1203 free(opts[i]); 1204 num_opts = 0; 1205 } while (!ret); 1206 1207 if (dump_cmdline) 1208 log_info("\n"); 1209 1210 i = 0; 1211 while (i < nr_job_sections) { 1212 free(job_sections[i]); 1213 i++; 1214 } 1215 1216 for (i = 0; i < num_opts; i++) 1217 free(opts[i]); 1218 1219 free(string); 1220 free(name); 1221 free(opts); 1222 if (!is_buf && f != stdin) 1223 fclose(f); 1224 return ret; 1225} 1226 1227static int fill_def_thread(void) 1228{ 1229 memset(&def_thread, 0, sizeof(def_thread)); 1230 1231 fio_getaffinity(getpid(), &def_thread.o.cpumask); 1232 def_thread.o.timeout = def_timeout; 1233 def_thread.o.error_dump = 1; 1234 /* 1235 * fill default options 1236 */ 1237 fio_fill_default_options(&def_thread); 1238 return 0; 1239} 1240 1241static void usage(const char *name) 1242{ 1243 printf("%s\n", fio_version_string); 1244 printf("%s [options] [job options] <job file(s)>\n", name); 1245 printf(" --debug=options\tEnable debug logging. May be one/more of:\n" 1246 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n" 1247 "\t\t\tdiskutil,job,mutex,profile,time,net\n"); 1248 printf(" --output\t\tWrite output to file\n"); 1249 printf(" --runtime\t\tRuntime in seconds\n"); 1250 printf(" --latency-log\t\tGenerate per-job latency logs\n"); 1251 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n"); 1252 printf(" --minimal\t\tMinimal (terse) output\n"); 1253 printf(" --output-format=x\tOutput format (terse,json,normal)\n"); 1254 printf(" --terse-version=x\tSet terse version output format to 'x'\n"); 1255 printf(" --version\t\tPrint version info and exit\n"); 1256 printf(" --help\t\tPrint this page\n"); 1257 printf(" --cpuclock-test\tPerform test/validation of CPU clock\n"); 1258 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of" 1259 " them\n"); 1260 printf(" --enghelp=engine\tPrint ioengine help, or list" 1261 " available ioengines\n"); 1262 printf(" --enghelp=engine,cmd\tPrint help for an ioengine" 1263 " cmd\n"); 1264 printf(" --showcmd\t\tTurn a job file into command line options\n"); 1265 printf(" --eta=when\t\tWhen ETA estimate should be printed\n"); 1266 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n"); 1267 printf(" --readonly\t\tTurn on safety read-only checks, preventing" 1268 " writes\n"); 1269 printf(" --section=name\tOnly run specified section in job file\n"); 1270 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb" 1271 " (def 1024)\n"); 1272 printf(" --warnings-fatal\tFio parser warnings are fatal\n"); 1273 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n"); 1274 printf(" --server=args\t\tStart a backend fio server\n"); 1275 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n"); 1276 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n"); 1277 printf(" --idle-prof=option\tReport cpu idleness on a system or percpu basis\n" 1278 "\t\t\t(option=system,percpu) or run unit work\n" 1279 "\t\t\tcalibration only (option=calibrate)\n"); 1280 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>"); 1281 printf("\n Jens Axboe <jaxboe@fusionio.com>\n"); 1282} 1283 1284#ifdef FIO_INC_DEBUG 1285struct debug_level debug_levels[] = { 1286 { .name = "process", .shift = FD_PROCESS, }, 1287 { .name = "file", .shift = FD_FILE, }, 1288 { .name = "io", .shift = FD_IO, }, 1289 { .name = "mem", .shift = FD_MEM, }, 1290 { .name = "blktrace", .shift = FD_BLKTRACE }, 1291 { .name = "verify", .shift = FD_VERIFY }, 1292 { .name = "random", .shift = FD_RANDOM }, 1293 { .name = "parse", .shift = FD_PARSE }, 1294 { .name = "diskutil", .shift = FD_DISKUTIL }, 1295 { .name = "job", .shift = FD_JOB }, 1296 { .name = "mutex", .shift = FD_MUTEX }, 1297 { .name = "profile", .shift = FD_PROFILE }, 1298 { .name = "time", .shift = FD_TIME }, 1299 { .name = "net", .shift = FD_NET }, 1300 { .name = NULL, }, 1301}; 1302 1303static int set_debug(const char *string) 1304{ 1305 struct debug_level *dl; 1306 char *p = (char *) string; 1307 char *opt; 1308 int i; 1309 1310 if (!strcmp(string, "?") || !strcmp(string, "help")) { 1311 log_info("fio: dumping debug options:"); 1312 for (i = 0; debug_levels[i].name; i++) { 1313 dl = &debug_levels[i]; 1314 log_info("%s,", dl->name); 1315 } 1316 log_info("all\n"); 1317 return 1; 1318 } 1319 1320 while ((opt = strsep(&p, ",")) != NULL) { 1321 int found = 0; 1322 1323 if (!strncmp(opt, "all", 3)) { 1324 log_info("fio: set all debug options\n"); 1325 fio_debug = ~0UL; 1326 continue; 1327 } 1328 1329 for (i = 0; debug_levels[i].name; i++) { 1330 dl = &debug_levels[i]; 1331 found = !strncmp(opt, dl->name, strlen(dl->name)); 1332 if (!found) 1333 continue; 1334 1335 if (dl->shift == FD_JOB) { 1336 opt = strchr(opt, ':'); 1337 if (!opt) { 1338 log_err("fio: missing job number\n"); 1339 break; 1340 } 1341 opt++; 1342 fio_debug_jobno = atoi(opt); 1343 log_info("fio: set debug jobno %d\n", 1344 fio_debug_jobno); 1345 } else { 1346 log_info("fio: set debug option %s\n", opt); 1347 fio_debug |= (1UL << dl->shift); 1348 } 1349 break; 1350 } 1351 1352 if (!found) 1353 log_err("fio: debug mask %s not found\n", opt); 1354 } 1355 return 0; 1356} 1357#else 1358static int set_debug(const char *string) 1359{ 1360 log_err("fio: debug tracing not included in build\n"); 1361 return 1; 1362} 1363#endif 1364 1365static void fio_options_fill_optstring(void) 1366{ 1367 char *ostr = cmd_optstr; 1368 int i, c; 1369 1370 c = i = 0; 1371 while (l_opts[i].name) { 1372 ostr[c++] = l_opts[i].val; 1373 if (l_opts[i].has_arg == required_argument) 1374 ostr[c++] = ':'; 1375 else if (l_opts[i].has_arg == optional_argument) { 1376 ostr[c++] = ':'; 1377 ostr[c++] = ':'; 1378 } 1379 i++; 1380 } 1381 ostr[c] = '\0'; 1382} 1383 1384static int client_flag_set(char c) 1385{ 1386 int i; 1387 1388 i = 0; 1389 while (l_opts[i].name) { 1390 int val = l_opts[i].val; 1391 1392 if (c == (val & 0xff)) 1393 return (val & FIO_CLIENT_FLAG); 1394 1395 i++; 1396 } 1397 1398 return 0; 1399} 1400 1401void parse_cmd_client(void *client, char *opt) 1402{ 1403 fio_client_add_cmd_option(client, opt); 1404} 1405 1406int parse_cmd_line(int argc, char *argv[]) 1407{ 1408 struct thread_data *td = NULL; 1409 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; 1410 char *ostr = cmd_optstr; 1411 void *pid_file = NULL; 1412 void *cur_client = NULL; 1413 int backend = 0; 1414 1415 /* 1416 * Reset optind handling, since we may call this multiple times 1417 * for the backend. 1418 */ 1419 optind = 1; 1420 1421 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) { 1422 did_arg = 1; 1423 1424 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) { 1425 parse_cmd_client(cur_client, argv[optind - 1]); 1426 c &= ~FIO_CLIENT_FLAG; 1427 } 1428 1429 switch (c) { 1430 case 'a': 1431 smalloc_pool_size = atoi(optarg); 1432 break; 1433 case 't': 1434 def_timeout = atoi(optarg); 1435 break; 1436 case 'l': 1437 write_lat_log = 1; 1438 break; 1439 case 'b': 1440 write_bw_log = 1; 1441 break; 1442 case 'o': 1443 f_out = fopen(optarg, "w+"); 1444 if (!f_out) { 1445 perror("fopen output"); 1446 exit(1); 1447 } 1448 f_err = f_out; 1449 break; 1450 case 'm': 1451 output_format = FIO_OUTPUT_TERSE; 1452 break; 1453 case 'F': 1454 if (!strcmp(optarg, "minimal") || 1455 !strcmp(optarg, "terse") || 1456 !strcmp(optarg, "csv")) 1457 output_format = FIO_OUTPUT_TERSE; 1458 else if (!strcmp(optarg, "json")) 1459 output_format = FIO_OUTPUT_JSON; 1460 else 1461 output_format = FIO_OUTPUT_NORMAL; 1462 break; 1463 case 'h': 1464 if (!cur_client) { 1465 usage(argv[0]); 1466 do_exit++; 1467 } 1468 break; 1469 case 'c': 1470 if (!cur_client) { 1471 fio_show_option_help(optarg); 1472 do_exit++; 1473 } 1474 break; 1475 case 'i': 1476 if (!cur_client) { 1477 fio_show_ioengine_help(optarg); 1478 do_exit++; 1479 } 1480 break; 1481 case 's': 1482 dump_cmdline = 1; 1483 break; 1484 case 'r': 1485 read_only = 1; 1486 break; 1487 case 'v': 1488 if (!cur_client) { 1489 log_info("%s\n", fio_version_string); 1490 do_exit++; 1491 } 1492 break; 1493 case 'V': 1494 terse_version = atoi(optarg); 1495 if (!(terse_version == 2 || terse_version == 3 || 1496 terse_version == 4)) { 1497 log_err("fio: bad terse version format\n"); 1498 exit_val = 1; 1499 do_exit++; 1500 } 1501 break; 1502 case 'e': 1503 if (!strcmp("always", optarg)) 1504 eta_print = FIO_ETA_ALWAYS; 1505 else if (!strcmp("never", optarg)) 1506 eta_print = FIO_ETA_NEVER; 1507 break; 1508 case 'd': 1509 if (set_debug(optarg)) 1510 do_exit++; 1511 break; 1512 case 'x': { 1513 size_t new_size; 1514 1515 if (!strcmp(optarg, "global")) { 1516 log_err("fio: can't use global as only " 1517 "section\n"); 1518 do_exit++; 1519 exit_val = 1; 1520 break; 1521 } 1522 new_size = (nr_job_sections + 1) * sizeof(char *); 1523 job_sections = realloc(job_sections, new_size); 1524 job_sections[nr_job_sections] = strdup(optarg); 1525 nr_job_sections++; 1526 break; 1527 } 1528 case 'p': 1529 exec_profile = strdup(optarg); 1530 break; 1531 case FIO_GETOPT_JOB: { 1532 const char *opt = l_opts[lidx].name; 1533 char *val = optarg; 1534 1535 if (!strncmp(opt, "name", 4) && td) { 1536 ret = add_job(td, td->o.name ?: "fio", 0); 1537 if (ret) 1538 return 0; 1539 td = NULL; 1540 } 1541 if (!td) { 1542 int is_section = !strncmp(opt, "name", 4); 1543 int global = 0; 1544 1545 if (!is_section || !strncmp(val, "global", 6)) 1546 global = 1; 1547 1548 if (is_section && skip_this_section(val)) 1549 continue; 1550 1551 td = get_new_job(global, &def_thread, 1); 1552 if (!td || ioengine_load(td)) 1553 return 0; 1554 fio_options_set_ioengine_opts(l_opts, td); 1555 } 1556 1557 ret = fio_cmd_option_parse(td, opt, val); 1558 1559 if (!ret && !strcmp(opt, "ioengine")) { 1560 free_ioengine(td); 1561 if (ioengine_load(td)) 1562 return 0; 1563 fio_options_set_ioengine_opts(l_opts, td); 1564 } 1565 break; 1566 } 1567 case FIO_GETOPT_IOENGINE: { 1568 const char *opt = l_opts[lidx].name; 1569 char *val = optarg; 1570 opt = l_opts[lidx].name; 1571 val = optarg; 1572 ret = fio_cmd_ioengine_option_parse(td, opt, val); 1573 break; 1574 } 1575 case 'w': 1576 warnings_fatal = 1; 1577 break; 1578 case 'j': 1579 max_jobs = atoi(optarg); 1580 if (!max_jobs || max_jobs > REAL_MAX_JOBS) { 1581 log_err("fio: invalid max jobs: %d\n", max_jobs); 1582 do_exit++; 1583 exit_val = 1; 1584 } 1585 break; 1586 case 'S': 1587 if (nr_clients) { 1588 log_err("fio: can't be both client and server\n"); 1589 do_exit++; 1590 exit_val = 1; 1591 break; 1592 } 1593 if (optarg) 1594 fio_server_set_arg(optarg); 1595 is_backend = 1; 1596 backend = 1; 1597 break; 1598 case 'D': 1599 pid_file = strdup(optarg); 1600 break; 1601 case 'I': 1602 if ((ret = fio_idle_prof_parse_opt(optarg))) { 1603 /* exit on error and calibration only */ 1604 do_exit++; 1605 if (ret == -1) 1606 exit_val = 1; 1607 } 1608 break; 1609 case 'C': 1610 if (is_backend) { 1611 log_err("fio: can't be both client and server\n"); 1612 do_exit++; 1613 exit_val = 1; 1614 break; 1615 } 1616 if (fio_client_add(optarg, &cur_client)) { 1617 log_err("fio: failed adding client %s\n", optarg); 1618 do_exit++; 1619 exit_val = 1; 1620 break; 1621 } 1622 /* 1623 * If the next argument exists and isn't an option, 1624 * assume it's a job file for this client only. 1625 */ 1626 while (optind < argc) { 1627 if (!strncmp(argv[optind], "--", 2) || 1628 !strncmp(argv[optind], "-", 1)) 1629 break; 1630 1631 fio_client_add_ini_file(cur_client, argv[optind]); 1632 optind++; 1633 } 1634 break; 1635 case 'T': 1636 do_exit++; 1637 exit_val = fio_monotonic_clocktest(); 1638 break; 1639 case '?': 1640 log_err("%s: unrecognized option '%s'\n", argv[0], 1641 argv[optind - 1]); 1642 default: 1643 do_exit++; 1644 exit_val = 1; 1645 break; 1646 } 1647 if (do_exit) 1648 break; 1649 } 1650 1651 if (do_exit) { 1652 if (exit_val && !(is_backend || nr_clients)) 1653 exit(exit_val); 1654 } 1655 1656 if (nr_clients && fio_clients_connect()) { 1657 do_exit++; 1658 exit_val = 1; 1659 return -1; 1660 } 1661 1662 if (is_backend && backend) 1663 return fio_start_server(pid_file); 1664 1665 if (td) { 1666 if (!ret) 1667 ret = add_job(td, td->o.name ?: "fio", 0); 1668 } 1669 1670 while (!ret && optind < argc) { 1671 ini_idx++; 1672 ini_file = realloc(ini_file, ini_idx * sizeof(char *)); 1673 ini_file[ini_idx - 1] = strdup(argv[optind]); 1674 optind++; 1675 } 1676 1677 return ini_idx; 1678} 1679 1680int parse_options(int argc, char *argv[]) 1681{ 1682 int job_files, i; 1683 1684 f_out = stdout; 1685 f_err = stderr; 1686 1687 fio_options_fill_optstring(); 1688 fio_options_dup_and_init(l_opts); 1689 1690 atexit(free_shm); 1691 1692 if (fill_def_thread()) 1693 return 1; 1694 1695 job_files = parse_cmd_line(argc, argv); 1696 1697 if (job_files > 0) { 1698 for (i = 0; i < job_files; i++) { 1699 if (fill_def_thread()) 1700 return 1; 1701 if (nr_clients) { 1702 if (fio_clients_send_ini(ini_file[i])) 1703 return 1; 1704 free(ini_file[i]); 1705 } else if (!is_backend) { 1706 if (parse_jobs_ini(ini_file[i], 0, i)) 1707 return 1; 1708 free(ini_file[i]); 1709 } 1710 } 1711 } else if (nr_clients) { 1712 if (fill_def_thread()) 1713 return 1; 1714 if (fio_clients_send_ini(NULL)) 1715 return 1; 1716 } 1717 1718 free(ini_file); 1719 fio_options_free(&def_thread); 1720 1721 if (!thread_number) { 1722 if (dump_cmdline) 1723 return 0; 1724 if (exec_profile) 1725 return 0; 1726 if (is_backend || nr_clients) 1727 return 0; 1728 if (did_arg) 1729 return 0; 1730 1731 log_err("No jobs(s) defined\n\n"); 1732 1733 if (!did_arg) { 1734 usage(argv[0]); 1735 return 1; 1736 } 1737 1738 return 0; 1739 } 1740 1741 if (def_thread.o.gtod_offload) { 1742 fio_gtod_init(); 1743 fio_gtod_offload = 1; 1744 fio_gtod_cpu = def_thread.o.gtod_cpu; 1745 } 1746 1747 if (output_format == FIO_OUTPUT_NORMAL) 1748 log_info("%s\n", fio_version_string); 1749 1750 return 0; 1751} 1752