init.c revision 7d11f87148b8ec0f5627c701c934c752bf774029
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 26#include "lib/getopt.h" 27 28const char fio_version_string[] = FIO_VERSION; 29 30#define FIO_RANDSEED (0xb1899bedUL) 31 32static char **ini_file; 33static int max_jobs = FIO_MAX_JOBS; 34static int dump_cmdline; 35static int def_timeout; 36 37static struct thread_data def_thread; 38struct thread_data *threads = NULL; 39 40int exitall_on_terminate = 0; 41int output_format = FIO_OUTPUT_NORMAL; 42int eta_print; 43unsigned long long mlock_size = 0; 44FILE *f_out = NULL; 45FILE *f_err = NULL; 46char **job_sections = NULL; 47int nr_job_sections = 0; 48char *exec_profile = NULL; 49int warnings_fatal = 0; 50int terse_version = 3; 51int is_backend = 0; 52int nr_clients = 0; 53int log_syslog = 0; 54 55int write_bw_log = 0; 56int read_only = 0; 57 58static int write_lat_log; 59 60static int prev_group_jobs; 61 62unsigned long fio_debug = 0; 63unsigned int fio_debug_jobno = -1; 64unsigned int *fio_debug_jobp = NULL; 65 66static char cmd_optstr[256]; 67static int did_arg; 68 69const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = { 70 { .u.f = 1.00 }, 71 { .u.f = 5.00 }, 72 { .u.f = 10.00 }, 73 { .u.f = 20.00 }, 74 { .u.f = 30.00 }, 75 { .u.f = 40.00 }, 76 { .u.f = 50.00 }, 77 { .u.f = 60.00 }, 78 { .u.f = 70.00 }, 79 { .u.f = 80.00 }, 80 { .u.f = 90.00 }, 81 { .u.f = 95.00 }, 82 { .u.f = 99.00 }, 83 { .u.f = 99.50 }, 84 { .u.f = 99.90 }, 85 { .u.f = 99.95 }, 86 { .u.f = 99.99 }, 87}; 88 89#define FIO_CLIENT_FLAG (1 << 16) 90 91/* 92 * Command line options. These will contain the above, plus a few 93 * extra that only pertain to fio itself and not jobs. 94 */ 95static struct option l_opts[FIO_NR_OPTIONS] = { 96 { 97 .name = (char *) "output", 98 .has_arg = required_argument, 99 .val = 'o' | FIO_CLIENT_FLAG, 100 }, 101 { 102 .name = (char *) "timeout", 103 .has_arg = required_argument, 104 .val = 't' | FIO_CLIENT_FLAG, 105 }, 106 { 107 .name = (char *) "latency-log", 108 .has_arg = required_argument, 109 .val = 'l' | FIO_CLIENT_FLAG, 110 }, 111 { 112 .name = (char *) "bandwidth-log", 113 .has_arg = required_argument, 114 .val = 'b' | FIO_CLIENT_FLAG, 115 }, 116 { 117 .name = (char *) "minimal", 118 .has_arg = optional_argument, 119 .val = 'm' | FIO_CLIENT_FLAG, 120 }, 121 { 122 .name = (char *) "output-format", 123 .has_arg = optional_argument, 124 .val = 'F' | FIO_CLIENT_FLAG, 125 }, 126 { 127 .name = (char *) "version", 128 .has_arg = no_argument, 129 .val = 'v' | FIO_CLIENT_FLAG, 130 }, 131 { 132 .name = (char *) "help", 133 .has_arg = no_argument, 134 .val = 'h' | FIO_CLIENT_FLAG, 135 }, 136 { 137 .name = (char *) "cmdhelp", 138 .has_arg = optional_argument, 139 .val = 'c' | FIO_CLIENT_FLAG, 140 }, 141 { 142 .name = (char *) "enghelp", 143 .has_arg = optional_argument, 144 .val = 'i' | FIO_CLIENT_FLAG, 145 }, 146 { 147 .name = (char *) "showcmd", 148 .has_arg = no_argument, 149 .val = 's' | FIO_CLIENT_FLAG, 150 }, 151 { 152 .name = (char *) "readonly", 153 .has_arg = no_argument, 154 .val = 'r' | FIO_CLIENT_FLAG, 155 }, 156 { 157 .name = (char *) "eta", 158 .has_arg = required_argument, 159 .val = 'e' | FIO_CLIENT_FLAG, 160 }, 161 { 162 .name = (char *) "debug", 163 .has_arg = required_argument, 164 .val = 'd' | FIO_CLIENT_FLAG, 165 }, 166 { 167 .name = (char *) "section", 168 .has_arg = required_argument, 169 .val = 'x' | FIO_CLIENT_FLAG, 170 }, 171 { 172 .name = (char *) "alloc-size", 173 .has_arg = required_argument, 174 .val = 'a' | FIO_CLIENT_FLAG, 175 }, 176 { 177 .name = (char *) "profile", 178 .has_arg = required_argument, 179 .val = 'p' | FIO_CLIENT_FLAG, 180 }, 181 { 182 .name = (char *) "warnings-fatal", 183 .has_arg = no_argument, 184 .val = 'w' | FIO_CLIENT_FLAG, 185 }, 186 { 187 .name = (char *) "max-jobs", 188 .has_arg = required_argument, 189 .val = 'j' | FIO_CLIENT_FLAG, 190 }, 191 { 192 .name = (char *) "terse-version", 193 .has_arg = required_argument, 194 .val = 'V' | FIO_CLIENT_FLAG, 195 }, 196 { 197 .name = (char *) "server", 198 .has_arg = optional_argument, 199 .val = 'S', 200 }, 201 { .name = (char *) "daemonize", 202 .has_arg = required_argument, 203 .val = 'D', 204 }, 205 { 206 .name = (char *) "client", 207 .has_arg = required_argument, 208 .val = 'C', 209 }, 210 { 211 .name = (char *) "cpuclock-test", 212 .has_arg = no_argument, 213 .val = 'T', 214 }, 215 { 216 .name = NULL, 217 }, 218}; 219 220static void free_shm(void) 221{ 222 struct shmid_ds sbuf; 223 224 if (threads) { 225 void *tp = threads; 226 227 threads = NULL; 228 file_hash_exit(); 229 flow_exit(); 230 fio_debug_jobp = NULL; 231 shmdt(tp); 232 shmctl(shm_id, IPC_RMID, &sbuf); 233 } 234 235 scleanup(); 236} 237 238/* 239 * The thread area is shared between the main process and the job 240 * threads/processes. So setup a shared memory segment that will hold 241 * all the job info. We use the end of the region for keeping track of 242 * open files across jobs, for file sharing. 243 */ 244static int setup_thread_area(void) 245{ 246 void *hash; 247 248 if (threads) 249 return 0; 250 251 /* 252 * 1024 is too much on some machines, scale max_jobs if 253 * we get a failure that looks like too large a shm segment 254 */ 255 do { 256 size_t size = max_jobs * sizeof(struct thread_data); 257 258 size += file_hash_size; 259 size += sizeof(unsigned int); 260 261 shm_id = shmget(0, size, IPC_CREAT | 0600); 262 if (shm_id != -1) 263 break; 264 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) { 265 perror("shmget"); 266 break; 267 } 268 269 max_jobs >>= 1; 270 } while (max_jobs); 271 272 if (shm_id == -1) 273 return 1; 274 275 threads = shmat(shm_id, NULL, 0); 276 if (threads == (void *) -1) { 277 perror("shmat"); 278 return 1; 279 } 280 281 memset(threads, 0, max_jobs * sizeof(struct thread_data)); 282 hash = (void *) threads + max_jobs * sizeof(struct thread_data); 283 fio_debug_jobp = (void *) hash + file_hash_size; 284 *fio_debug_jobp = -1; 285 file_hash_init(hash); 286 287 flow_init(); 288 289 return 0; 290} 291 292/* 293 * Return a free job structure. 294 */ 295static struct thread_data *get_new_job(int global, struct thread_data *parent, 296 int preserve_eo) 297{ 298 struct thread_data *td; 299 300 if (global) 301 return &def_thread; 302 if (setup_thread_area()) { 303 log_err("error: failed to setup shm segment\n"); 304 return NULL; 305 } 306 if (thread_number >= max_jobs) { 307 log_err("error: maximum number of jobs (%d) reached.\n", 308 max_jobs); 309 return NULL; 310 } 311 312 td = &threads[thread_number++]; 313 *td = *parent; 314 315 td->io_ops = NULL; 316 if (!preserve_eo) 317 td->eo = NULL; 318 319 td->o.uid = td->o.gid = -1U; 320 321 dup_files(td, parent); 322 fio_options_mem_dupe(td); 323 324 profile_add_hooks(td); 325 326 td->thread_number = thread_number; 327 328 if (!parent || !parent->o.group_reporting) 329 stat_number++; 330 331 return td; 332} 333 334static void put_job(struct thread_data *td) 335{ 336 if (td == &def_thread) 337 return; 338 339 profile_td_exit(td); 340 flow_exit_job(td); 341 342 if (td->error) 343 log_info("fio: %s\n", td->verror); 344 345 fio_options_free(td); 346 if (td->io_ops) 347 free_ioengine(td); 348 349 memset(&threads[td->thread_number - 1], 0, sizeof(*td)); 350 thread_number--; 351} 352 353static int __setup_rate(struct thread_data *td, enum fio_ddir ddir) 354{ 355 unsigned int bs = td->o.min_bs[ddir]; 356 357 assert(ddir_rw(ddir)); 358 359 if (td->o.rate[ddir]) 360 td->rate_bps[ddir] = td->o.rate[ddir]; 361 else 362 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs; 363 364 if (!td->rate_bps[ddir]) { 365 log_err("rate lower than supported\n"); 366 return -1; 367 } 368 369 td->rate_pending_usleep[ddir] = 0; 370 return 0; 371} 372 373static int setup_rate(struct thread_data *td) 374{ 375 int ret = 0; 376 377 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ]) 378 ret = __setup_rate(td, DDIR_READ); 379 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE]) 380 ret |= __setup_rate(td, DDIR_WRITE); 381 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM]) 382 ret |= __setup_rate(td, DDIR_TRIM); 383 384 return ret; 385} 386 387static int fixed_block_size(struct thread_options *o) 388{ 389 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] && 390 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] && 391 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] && 392 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] && 393 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM]; 394} 395 396/* 397 * Lazy way of fixing up options that depend on each other. We could also 398 * define option callback handlers, but this is easier. 399 */ 400static int fixup_options(struct thread_data *td) 401{ 402 struct thread_options *o = &td->o; 403 int ret = 0; 404 405#ifndef FIO_HAVE_PSHARED_MUTEX 406 if (!o->use_thread) { 407 log_info("fio: this platform does not support process shared" 408 " mutexes, forcing use of threads. Use the 'thread'" 409 " option to get rid of this warning.\n"); 410 o->use_thread = 1; 411 ret = warnings_fatal; 412 } 413#endif 414 415 if (o->write_iolog_file && o->read_iolog_file) { 416 log_err("fio: read iolog overrides write_iolog\n"); 417 free(o->write_iolog_file); 418 o->write_iolog_file = NULL; 419 ret = warnings_fatal; 420 } 421 422 /* 423 * only really works with 1 file 424 */ 425 if (o->zone_size && o->open_files == 1) 426 o->zone_size = 0; 427 428 /* 429 * If zone_range isn't specified, backward compatibility dictates it 430 * should be made equal to zone_size. 431 */ 432 if (o->zone_size && !o->zone_range) 433 o->zone_range = o->zone_size; 434 435 /* 436 * Reads can do overwrites, we always need to pre-create the file 437 */ 438 if (td_read(td) || td_rw(td)) 439 o->overwrite = 1; 440 441 if (!o->min_bs[DDIR_READ]) 442 o->min_bs[DDIR_READ] = o->bs[DDIR_READ]; 443 if (!o->max_bs[DDIR_READ]) 444 o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; 445 if (!o->min_bs[DDIR_WRITE]) 446 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 447 if (!o->max_bs[DDIR_WRITE]) 448 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 449 if (!o->min_bs[DDIR_TRIM]) 450 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 451 if (!o->max_bs[DDIR_TRIM]) 452 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 453 454 455 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); 456 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs); 457 458 /* 459 * For random IO, allow blockalign offset other than min_bs. 460 */ 461 if (!o->ba[DDIR_READ] || !td_random(td)) 462 o->ba[DDIR_READ] = o->min_bs[DDIR_READ]; 463 if (!o->ba[DDIR_WRITE] || !td_random(td)) 464 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE]; 465 if (!o->ba[DDIR_TRIM] || !td_random(td)) 466 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM]; 467 468 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] || 469 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] || 470 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) && 471 !o->norandommap) { 472 log_err("fio: Any use of blockalign= turns off randommap\n"); 473 o->norandommap = 1; 474 ret = warnings_fatal; 475 } 476 477 if (!o->file_size_high) 478 o->file_size_high = o->file_size_low; 479 480 if (o->norandommap && o->verify != VERIFY_NONE 481 && !fixed_block_size(o)) { 482 log_err("fio: norandommap given for variable block sizes, " 483 "verify disabled\n"); 484 o->verify = VERIFY_NONE; 485 ret = warnings_fatal; 486 } 487 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) 488 log_err("fio: bs_unaligned may not work with raw io\n"); 489 490 /* 491 * thinktime_spin must be less than thinktime 492 */ 493 if (o->thinktime_spin > o->thinktime) 494 o->thinktime_spin = o->thinktime; 495 496 /* 497 * The low water mark cannot be bigger than the iodepth 498 */ 499 if (o->iodepth_low > o->iodepth || !o->iodepth_low) { 500 /* 501 * syslet work around - if the workload is sequential, 502 * we want to let the queue drain all the way down to 503 * avoid seeking between async threads 504 */ 505 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) 506 o->iodepth_low = 1; 507 else 508 o->iodepth_low = o->iodepth; 509 } 510 511 /* 512 * If batch number isn't set, default to the same as iodepth 513 */ 514 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) 515 o->iodepth_batch = o->iodepth; 516 517 if (o->nr_files > td->files_index) 518 o->nr_files = td->files_index; 519 520 if (o->open_files > o->nr_files || !o->open_files) 521 o->open_files = o->nr_files; 522 523 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) && 524 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) || 525 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) && 526 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) { 527 log_err("fio: rate and rate_iops are mutually exclusive\n"); 528 ret = 1; 529 } 530 if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) || 531 (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) || 532 (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) || 533 (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) || 534 (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) || 535 (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) { 536 log_err("fio: minimum rate exceeds rate\n"); 537 ret = 1; 538 } 539 540 if (!o->timeout && o->time_based) { 541 log_err("fio: time_based requires a runtime/timeout setting\n"); 542 o->time_based = 0; 543 ret = warnings_fatal; 544 } 545 546 if (o->fill_device && !o->size) 547 o->size = -1ULL; 548 549 if (o->verify != VERIFY_NONE) { 550 if (td_write(td) && o->do_verify && o->numjobs > 1) { 551 log_info("Multiple writers may overwrite blocks that " 552 "belong to other jobs. This can cause " 553 "verification failures.\n"); 554 ret = warnings_fatal; 555 } 556 557 o->refill_buffers = 1; 558 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] && 559 !o->verify_interval) 560 o->verify_interval = o->min_bs[DDIR_WRITE]; 561 } 562 563 if (o->pre_read) { 564 o->invalidate_cache = 0; 565 if (td->io_ops->flags & FIO_PIPEIO) { 566 log_info("fio: cannot pre-read files with an IO engine" 567 " that isn't seekable. Pre-read disabled.\n"); 568 ret = warnings_fatal; 569 } 570 } 571 572#ifndef FIO_HAVE_FDATASYNC 573 if (o->fdatasync_blocks) { 574 log_info("fio: this platform does not support fdatasync()" 575 " falling back to using fsync(). Use the 'fsync'" 576 " option instead of 'fdatasync' to get rid of" 577 " this warning\n"); 578 o->fsync_blocks = o->fdatasync_blocks; 579 o->fdatasync_blocks = 0; 580 ret = warnings_fatal; 581 } 582#endif 583 584#ifdef WIN32 585 /* 586 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface, 587 * so fail if we're passed those flags 588 */ 589 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) { 590 log_err("fio: Windows does not support direct or non-buffered io with" 591 " the synchronous ioengines. Use the 'windowsaio' ioengine" 592 " with 'direct=1' and 'iodepth=1' instead.\n"); 593 ret = 1; 594 } 595#endif 596 597 /* 598 * For fully compressible data, just zero them at init time. 599 * It's faster than repeatedly filling it. 600 */ 601 if (td->o.compress_percentage == 100) { 602 td->o.zero_buffers = 1; 603 td->o.compress_percentage = 0; 604 } 605 606 /* 607 * Using a non-uniform random distribution excludes usage of 608 * a random map 609 */ 610 if (td->o.random_distribution != FIO_RAND_DIST_RANDOM) 611 td->o.norandommap = 1; 612 613 return ret; 614} 615 616/* 617 * This function leaks the buffer 618 */ 619static char *to_kmg(unsigned int val) 620{ 621 char *buf = malloc(32); 622 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; 623 char *p = post; 624 625 do { 626 if (val & 1023) 627 break; 628 629 val >>= 10; 630 p++; 631 } while (*p); 632 633 snprintf(buf, 31, "%u%c", val, *p); 634 return buf; 635} 636 637/* External engines are specified by "external:name.o") */ 638static const char *get_engine_name(const char *str) 639{ 640 char *p = strstr(str, ":"); 641 642 if (!p) 643 return str; 644 645 p++; 646 strip_blank_front(&p); 647 strip_blank_end(p); 648 return p; 649} 650 651static int exists_and_not_file(const char *filename) 652{ 653 struct stat sb; 654 655 if (lstat(filename, &sb) == -1) 656 return 0; 657 658 /* \\.\ is the device namespace in Windows, where every file 659 * is a device node */ 660 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0) 661 return 0; 662 663 return 1; 664} 665 666static void td_fill_rand_seeds_os(struct thread_data *td) 667{ 668 os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state); 669 os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state); 670 os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state); 671 672 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 673 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state); 674 675 os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state); 676 os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state); 677 678 if (!td_random(td)) 679 return; 680 681 if (td->o.rand_repeatable) 682 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number; 683 684 os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state); 685} 686 687static void td_fill_rand_seeds_internal(struct thread_data *td) 688{ 689 init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]); 690 init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]); 691 init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]); 692 693 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 694 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]); 695 696 init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]); 697 init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]); 698 699 if (!td_random(td)) 700 return; 701 702 if (td->o.rand_repeatable) 703 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number; 704 705 init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]); 706} 707 708void td_fill_rand_seeds(struct thread_data *td) 709{ 710 if (td->o.use_os_rand) 711 td_fill_rand_seeds_os(td); 712 else 713 td_fill_rand_seeds_internal(td); 714 715 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]); 716} 717 718 719/* 720 * Initializes the ioengine configured for a job, if it has not been done so 721 * already. 722 */ 723int ioengine_load(struct thread_data *td) 724{ 725 const char *engine; 726 727 /* 728 * Engine has already been loaded. 729 */ 730 if (td->io_ops) 731 return 0; 732 733 engine = get_engine_name(td->o.ioengine); 734 td->io_ops = load_ioengine(td, engine); 735 if (!td->io_ops) { 736 log_err("fio: failed to load engine %s\n", engine); 737 return 1; 738 } 739 740 if (td->io_ops->option_struct_size && td->io_ops->options) { 741 /* 742 * In cases where td->eo is set, clone it for a child thread. 743 * This requires that the parent thread has the same ioengine, 744 * but that requirement must be enforced by the code which 745 * cloned the thread. 746 */ 747 void *origeo = td->eo; 748 /* 749 * Otherwise use the default thread options. 750 */ 751 if (!origeo && td != &def_thread && def_thread.eo && 752 def_thread.io_ops->options == td->io_ops->options) 753 origeo = def_thread.eo; 754 755 options_init(td->io_ops->options); 756 td->eo = malloc(td->io_ops->option_struct_size); 757 /* 758 * Use the default thread as an option template if this uses the 759 * same options structure and there are non-default options 760 * used. 761 */ 762 if (origeo) { 763 memcpy(td->eo, origeo, td->io_ops->option_struct_size); 764 options_mem_dupe(td->eo, td->io_ops->options); 765 } else { 766 memset(td->eo, 0, td->io_ops->option_struct_size); 767 fill_default_options(td->eo, td->io_ops->options); 768 } 769 *(struct thread_data **)td->eo = td; 770 } 771 772 return 0; 773} 774 775static void init_flags(struct thread_data *td) 776{ 777 struct thread_options *o = &td->o; 778 779 if (o->verify_backlog) 780 td->flags |= TD_F_VER_BACKLOG; 781 if (o->trim_backlog) 782 td->flags |= TD_F_TRIM_BACKLOG; 783 if (o->read_iolog_file) 784 td->flags |= TD_F_READ_IOLOG; 785 if (o->refill_buffers) 786 td->flags |= TD_F_REFILL_BUFFERS; 787 if (o->scramble_buffers) 788 td->flags |= TD_F_SCRAMBLE_BUFFERS; 789 if (o->verify != VERIFY_NONE) 790 td->flags |= TD_F_VER_NONE; 791} 792 793/* 794 * Adds a job to the list of things todo. Sanitizes the various options 795 * to make sure we don't have conflicts, and initializes various 796 * members of td. 797 */ 798static int add_job(struct thread_data *td, const char *jobname, int job_add_num) 799{ 800 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, 801 "randread", "randwrite", "randrw", 802 "trim", NULL, NULL, NULL, "randtrim" }; 803 unsigned int i; 804 char fname[PATH_MAX]; 805 int numjobs, file_alloced; 806 807 /* 808 * the def_thread is just for options, it's not a real job 809 */ 810 if (td == &def_thread) 811 return 0; 812 813 init_flags(td); 814 815 /* 816 * if we are just dumping the output command line, don't add the job 817 */ 818 if (dump_cmdline) { 819 put_job(td); 820 return 0; 821 } 822 823 if (profile_td_init(td)) 824 goto err; 825 826 if (ioengine_load(td)) 827 goto err; 828 829 if (td->o.use_thread) 830 nr_thread++; 831 else 832 nr_process++; 833 834 if (td->o.odirect) 835 td->io_ops->flags |= FIO_RAWIO; 836 837 file_alloced = 0; 838 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) { 839 file_alloced = 1; 840 841 if (td->o.nr_files == 1 && exists_and_not_file(jobname)) 842 add_file(td, jobname); 843 else { 844 for (i = 0; i < td->o.nr_files; i++) { 845 sprintf(fname, "%s.%d.%d", jobname, 846 td->thread_number, i); 847 add_file(td, fname); 848 } 849 } 850 } 851 852 if (fixup_options(td)) 853 goto err; 854 855 flow_init_job(td); 856 857 /* 858 * IO engines only need this for option callbacks, and the address may 859 * change in subprocesses. 860 */ 861 if (td->eo) 862 *(struct thread_data **)td->eo = NULL; 863 864 if (td->io_ops->flags & FIO_DISKLESSIO) { 865 struct fio_file *f; 866 867 for_each_file(td, f, i) 868 f->real_file_size = -1ULL; 869 } 870 871 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED); 872 873 td->ts.clat_percentiles = td->o.clat_percentiles; 874 if (td->o.overwrite_plist) 875 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); 876 else 877 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list)); 878 879 for (i = 0; i < DDIR_RWDIR_CNT; i++) { 880 td->ts.clat_stat[i].min_val = ULONG_MAX; 881 td->ts.slat_stat[i].min_val = ULONG_MAX; 882 td->ts.lat_stat[i].min_val = ULONG_MAX; 883 td->ts.bw_stat[i].min_val = ULONG_MAX; 884 } 885 td->ddir_seq_nr = td->o.ddir_seq_nr; 886 887 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) { 888 prev_group_jobs = 0; 889 groupid++; 890 } 891 892 td->groupid = groupid; 893 prev_group_jobs++; 894 895 if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) { 896 td_verror(td, errno, "init_random_state"); 897 goto err; 898 } 899 900 if (setup_rate(td)) 901 goto err; 902 903 if (td->o.write_lat_log) { 904 setup_log(&td->lat_log, td->o.log_avg_msec); 905 setup_log(&td->slat_log, td->o.log_avg_msec); 906 setup_log(&td->clat_log, td->o.log_avg_msec); 907 } 908 if (td->o.write_bw_log) 909 setup_log(&td->bw_log, td->o.log_avg_msec); 910 if (td->o.write_iops_log) 911 setup_log(&td->iops_log, td->o.log_avg_msec); 912 913 if (!td->o.name) 914 td->o.name = strdup(jobname); 915 916 if (output_format == FIO_OUTPUT_NORMAL) { 917 if (!job_add_num) { 918 if (!strcmp(td->io_ops->name, "cpuio")) { 919 log_info("%s: ioengine=cpu, cpuload=%u," 920 " cpucycle=%u\n", td->o.name, 921 td->o.cpuload, 922 td->o.cpucycle); 923 } else { 924 char *c1, *c2, *c3, *c4, *c5, *c6; 925 926 c1 = to_kmg(td->o.min_bs[DDIR_READ]); 927 c2 = to_kmg(td->o.max_bs[DDIR_READ]); 928 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); 929 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); 930 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]); 931 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]); 932 933 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s," 934 " ioengine=%s, iodepth=%u\n", 935 td->o.name, td->groupid, 936 ddir_str[td->o.td_ddir], 937 c1, c2, c3, c4, c5, c6, 938 td->io_ops->name, 939 td->o.iodepth); 940 941 free(c1); 942 free(c2); 943 free(c3); 944 free(c4); 945 free(c5); 946 free(c6); 947 } 948 } else if (job_add_num == 1) 949 log_info("...\n"); 950 } 951 952 /* 953 * recurse add identical jobs, clear numjobs and stonewall options 954 * as they don't apply to sub-jobs 955 */ 956 numjobs = td->o.numjobs; 957 while (--numjobs) { 958 struct thread_data *td_new = get_new_job(0, td, 1); 959 960 if (!td_new) 961 goto err; 962 963 td_new->o.numjobs = 1; 964 td_new->o.stonewall = 0; 965 td_new->o.new_group = 0; 966 967 if (file_alloced) { 968 td_new->o.filename = NULL; 969 td_new->files_index = 0; 970 td_new->files_size = 0; 971 td_new->files = NULL; 972 } 973 974 job_add_num = numjobs - 1; 975 976 if (add_job(td_new, jobname, job_add_num)) 977 goto err; 978 } 979 980 return 0; 981err: 982 put_job(td); 983 return -1; 984} 985 986/* 987 * Parse as if 'o' was a command line 988 */ 989void add_job_opts(const char **o) 990{ 991 struct thread_data *td, *td_parent; 992 int i, in_global = 1; 993 char jobname[32]; 994 995 i = 0; 996 td_parent = td = NULL; 997 while (o[i]) { 998 if (!strncmp(o[i], "name", 4)) { 999 in_global = 0; 1000 if (td) 1001 add_job(td, jobname, 0); 1002 td = NULL; 1003 sprintf(jobname, "%s", o[i] + 5); 1004 } 1005 if (in_global && !td_parent) 1006 td_parent = get_new_job(1, &def_thread, 0); 1007 else if (!in_global && !td) { 1008 if (!td_parent) 1009 td_parent = &def_thread; 1010 td = get_new_job(0, td_parent, 0); 1011 } 1012 if (in_global) 1013 fio_options_parse(td_parent, (char **) &o[i], 1); 1014 else 1015 fio_options_parse(td, (char **) &o[i], 1); 1016 i++; 1017 } 1018 1019 if (td) 1020 add_job(td, jobname, 0); 1021} 1022 1023static int skip_this_section(const char *name) 1024{ 1025 int i; 1026 1027 if (!nr_job_sections) 1028 return 0; 1029 if (!strncmp(name, "global", 6)) 1030 return 0; 1031 1032 for (i = 0; i < nr_job_sections; i++) 1033 if (!strcmp(job_sections[i], name)) 1034 return 0; 1035 1036 return 1; 1037} 1038 1039static int is_empty_or_comment(char *line) 1040{ 1041 unsigned int i; 1042 1043 for (i = 0; i < strlen(line); i++) { 1044 if (line[i] == ';') 1045 return 1; 1046 if (line[i] == '#') 1047 return 1; 1048 if (!isspace((int) line[i]) && !iscntrl((int) line[i])) 1049 return 0; 1050 } 1051 1052 return 1; 1053} 1054 1055/* 1056 * This is our [ini] type file parser. 1057 */ 1058int parse_jobs_ini(char *file, int is_buf, int stonewall_flag) 1059{ 1060 unsigned int global; 1061 struct thread_data *td; 1062 char *string, *name; 1063 FILE *f; 1064 char *p; 1065 int ret = 0, stonewall; 1066 int first_sect = 1; 1067 int skip_fgets = 0; 1068 int inside_skip = 0; 1069 char **opts; 1070 int i, alloc_opts, num_opts; 1071 1072 if (is_buf) 1073 f = NULL; 1074 else { 1075 if (!strcmp(file, "-")) 1076 f = stdin; 1077 else 1078 f = fopen(file, "r"); 1079 1080 if (!f) { 1081 perror("fopen job file"); 1082 return 1; 1083 } 1084 } 1085 1086 string = malloc(4096); 1087 1088 /* 1089 * it's really 256 + small bit, 280 should suffice 1090 */ 1091 name = malloc(280); 1092 memset(name, 0, 280); 1093 1094 alloc_opts = 8; 1095 opts = malloc(sizeof(char *) * alloc_opts); 1096 num_opts = 0; 1097 1098 stonewall = stonewall_flag; 1099 do { 1100 /* 1101 * if skip_fgets is set, we already have loaded a line we 1102 * haven't handled. 1103 */ 1104 if (!skip_fgets) { 1105 if (is_buf) 1106 p = strsep(&file, "\n"); 1107 else 1108 p = fgets(string, 4096, f); 1109 if (!p) 1110 break; 1111 } 1112 1113 skip_fgets = 0; 1114 strip_blank_front(&p); 1115 strip_blank_end(p); 1116 1117 if (is_empty_or_comment(p)) 1118 continue; 1119 if (sscanf(p, "[%255[^\n]]", name) != 1) { 1120 if (inside_skip) 1121 continue; 1122 log_err("fio: option <%s> outside of [] job section\n", 1123 p); 1124 break; 1125 } 1126 1127 name[strlen(name) - 1] = '\0'; 1128 1129 if (skip_this_section(name)) { 1130 inside_skip = 1; 1131 continue; 1132 } else 1133 inside_skip = 0; 1134 1135 global = !strncmp(name, "global", 6); 1136 1137 if (dump_cmdline) { 1138 if (first_sect) 1139 log_info("fio "); 1140 if (!global) 1141 log_info("--name=%s ", name); 1142 first_sect = 0; 1143 } 1144 1145 td = get_new_job(global, &def_thread, 0); 1146 if (!td) { 1147 ret = 1; 1148 break; 1149 } 1150 1151 /* 1152 * Seperate multiple job files by a stonewall 1153 */ 1154 if (!global && stonewall) { 1155 td->o.stonewall = stonewall; 1156 stonewall = 0; 1157 } 1158 1159 num_opts = 0; 1160 memset(opts, 0, alloc_opts * sizeof(char *)); 1161 1162 while (1) { 1163 if (is_buf) 1164 p = strsep(&file, "\n"); 1165 else 1166 p = fgets(string, 4096, f); 1167 if (!p) 1168 break; 1169 1170 if (is_empty_or_comment(p)) 1171 continue; 1172 1173 strip_blank_front(&p); 1174 1175 /* 1176 * new section, break out and make sure we don't 1177 * fgets() a new line at the top. 1178 */ 1179 if (p[0] == '[') { 1180 skip_fgets = 1; 1181 break; 1182 } 1183 1184 strip_blank_end(p); 1185 1186 if (num_opts == alloc_opts) { 1187 alloc_opts <<= 1; 1188 opts = realloc(opts, 1189 alloc_opts * sizeof(char *)); 1190 } 1191 1192 opts[num_opts] = strdup(p); 1193 num_opts++; 1194 } 1195 1196 ret = fio_options_parse(td, opts, num_opts); 1197 if (!ret) { 1198 if (dump_cmdline) 1199 for (i = 0; i < num_opts; i++) 1200 log_info("--%s ", opts[i]); 1201 1202 ret = add_job(td, name, 0); 1203 } else { 1204 log_err("fio: job %s dropped\n", name); 1205 put_job(td); 1206 } 1207 1208 for (i = 0; i < num_opts; i++) 1209 free(opts[i]); 1210 num_opts = 0; 1211 } while (!ret); 1212 1213 if (dump_cmdline) 1214 log_info("\n"); 1215 1216 i = 0; 1217 while (i < nr_job_sections) { 1218 free(job_sections[i]); 1219 i++; 1220 } 1221 1222 for (i = 0; i < num_opts; i++) 1223 free(opts[i]); 1224 1225 free(string); 1226 free(name); 1227 free(opts); 1228 if (!is_buf && f != stdin) 1229 fclose(f); 1230 return ret; 1231} 1232 1233static int fill_def_thread(void) 1234{ 1235 memset(&def_thread, 0, sizeof(def_thread)); 1236 1237 fio_getaffinity(getpid(), &def_thread.o.cpumask); 1238 def_thread.o.timeout = def_timeout; 1239 def_thread.o.error_dump = 1; 1240 /* 1241 * fill default options 1242 */ 1243 fio_fill_default_options(&def_thread); 1244 return 0; 1245} 1246 1247static void usage(const char *name) 1248{ 1249 printf("%s\n", fio_version_string); 1250 printf("%s [options] [job options] <job file(s)>\n", name); 1251 printf(" --debug=options\tEnable debug logging. May be one/more of:\n" 1252 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n" 1253 "\t\t\tdiskutil,job,mutex,profile,time,net\n"); 1254 printf(" --output\t\tWrite output to file\n"); 1255 printf(" --runtime\t\tRuntime in seconds\n"); 1256 printf(" --latency-log\t\tGenerate per-job latency logs\n"); 1257 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n"); 1258 printf(" --minimal\t\tMinimal (terse) output\n"); 1259 printf(" --output-format=x\tOutput format (terse,json,normal)\n"); 1260 printf(" --terse-version=x\tSet terse version output format to 'x'\n"); 1261 printf(" --version\t\tPrint version info and exit\n"); 1262 printf(" --help\t\tPrint this page\n"); 1263 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of" 1264 " them\n"); 1265 printf(" --enghelp=engine\tPrint ioengine help, or list" 1266 " available ioengines\n"); 1267 printf(" --enghelp=engine,cmd\tPrint help for an ioengine" 1268 " cmd\n"); 1269 printf(" --showcmd\t\tTurn a job file into command line options\n"); 1270 printf(" --eta=when\t\tWhen ETA estimate should be printed\n"); 1271 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n"); 1272 printf(" --readonly\t\tTurn on safety read-only checks, preventing" 1273 " writes\n"); 1274 printf(" --section=name\tOnly run specified section in job file\n"); 1275 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb" 1276 " (def 1024)\n"); 1277 printf(" --warnings-fatal\tFio parser warnings are fatal\n"); 1278 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n"); 1279 printf(" --server=args\t\tStart a backend fio server\n"); 1280 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n"); 1281 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n"); 1282 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>"); 1283 printf("\n Jens Axboe <jaxboe@fusionio.com>\n"); 1284} 1285 1286#ifdef FIO_INC_DEBUG 1287struct debug_level debug_levels[] = { 1288 { .name = "process", .shift = FD_PROCESS, }, 1289 { .name = "file", .shift = FD_FILE, }, 1290 { .name = "io", .shift = FD_IO, }, 1291 { .name = "mem", .shift = FD_MEM, }, 1292 { .name = "blktrace", .shift = FD_BLKTRACE }, 1293 { .name = "verify", .shift = FD_VERIFY }, 1294 { .name = "random", .shift = FD_RANDOM }, 1295 { .name = "parse", .shift = FD_PARSE }, 1296 { .name = "diskutil", .shift = FD_DISKUTIL }, 1297 { .name = "job", .shift = FD_JOB }, 1298 { .name = "mutex", .shift = FD_MUTEX }, 1299 { .name = "profile", .shift = FD_PROFILE }, 1300 { .name = "time", .shift = FD_TIME }, 1301 { .name = "net", .shift = FD_NET }, 1302 { .name = NULL, }, 1303}; 1304 1305static int set_debug(const char *string) 1306{ 1307 struct debug_level *dl; 1308 char *p = (char *) string; 1309 char *opt; 1310 int i; 1311 1312 if (!strcmp(string, "?") || !strcmp(string, "help")) { 1313 log_info("fio: dumping debug options:"); 1314 for (i = 0; debug_levels[i].name; i++) { 1315 dl = &debug_levels[i]; 1316 log_info("%s,", dl->name); 1317 } 1318 log_info("all\n"); 1319 return 1; 1320 } 1321 1322 while ((opt = strsep(&p, ",")) != NULL) { 1323 int found = 0; 1324 1325 if (!strncmp(opt, "all", 3)) { 1326 log_info("fio: set all debug options\n"); 1327 fio_debug = ~0UL; 1328 continue; 1329 } 1330 1331 for (i = 0; debug_levels[i].name; i++) { 1332 dl = &debug_levels[i]; 1333 found = !strncmp(opt, dl->name, strlen(dl->name)); 1334 if (!found) 1335 continue; 1336 1337 if (dl->shift == FD_JOB) { 1338 opt = strchr(opt, ':'); 1339 if (!opt) { 1340 log_err("fio: missing job number\n"); 1341 break; 1342 } 1343 opt++; 1344 fio_debug_jobno = atoi(opt); 1345 log_info("fio: set debug jobno %d\n", 1346 fio_debug_jobno); 1347 } else { 1348 log_info("fio: set debug option %s\n", opt); 1349 fio_debug |= (1UL << dl->shift); 1350 } 1351 break; 1352 } 1353 1354 if (!found) 1355 log_err("fio: debug mask %s not found\n", opt); 1356 } 1357 return 0; 1358} 1359#else 1360static int set_debug(const char *string) 1361{ 1362 log_err("fio: debug tracing not included in build\n"); 1363 return 1; 1364} 1365#endif 1366 1367static void fio_options_fill_optstring(void) 1368{ 1369 char *ostr = cmd_optstr; 1370 int i, c; 1371 1372 c = i = 0; 1373 while (l_opts[i].name) { 1374 ostr[c++] = l_opts[i].val; 1375 if (l_opts[i].has_arg == required_argument) 1376 ostr[c++] = ':'; 1377 else if (l_opts[i].has_arg == optional_argument) { 1378 ostr[c++] = ':'; 1379 ostr[c++] = ':'; 1380 } 1381 i++; 1382 } 1383 ostr[c] = '\0'; 1384} 1385 1386static int client_flag_set(char c) 1387{ 1388 int i; 1389 1390 i = 0; 1391 while (l_opts[i].name) { 1392 int val = l_opts[i].val; 1393 1394 if (c == (val & 0xff)) 1395 return (val & FIO_CLIENT_FLAG); 1396 1397 i++; 1398 } 1399 1400 return 0; 1401} 1402 1403void parse_cmd_client(void *client, char *opt) 1404{ 1405 fio_client_add_cmd_option(client, opt); 1406} 1407 1408int parse_cmd_line(int argc, char *argv[]) 1409{ 1410 struct thread_data *td = NULL; 1411 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; 1412 char *ostr = cmd_optstr; 1413 void *pid_file = NULL; 1414 void *cur_client = NULL; 1415 int backend = 0; 1416 1417 /* 1418 * Reset optind handling, since we may call this multiple times 1419 * for the backend. 1420 */ 1421 optind = 1; 1422 1423 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) { 1424 did_arg = 1; 1425 1426 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) { 1427 parse_cmd_client(cur_client, argv[optind - 1]); 1428 c &= ~FIO_CLIENT_FLAG; 1429 } 1430 1431 switch (c) { 1432 case 'a': 1433 smalloc_pool_size = atoi(optarg); 1434 break; 1435 case 't': 1436 def_timeout = atoi(optarg); 1437 break; 1438 case 'l': 1439 write_lat_log = 1; 1440 break; 1441 case 'b': 1442 write_bw_log = 1; 1443 break; 1444 case 'o': 1445 f_out = fopen(optarg, "w+"); 1446 if (!f_out) { 1447 perror("fopen output"); 1448 exit(1); 1449 } 1450 f_err = f_out; 1451 break; 1452 case 'm': 1453 output_format = FIO_OUTPUT_TERSE; 1454 break; 1455 case 'F': 1456 if (!strcmp(optarg, "minimal") || 1457 !strcmp(optarg, "terse") || 1458 !strcmp(optarg, "csv")) 1459 output_format = FIO_OUTPUT_TERSE; 1460 else if (!strcmp(optarg, "json")) 1461 output_format = FIO_OUTPUT_JSON; 1462 else 1463 output_format = FIO_OUTPUT_NORMAL; 1464 break; 1465 case 'h': 1466 if (!cur_client) { 1467 usage(argv[0]); 1468 do_exit++; 1469 } 1470 break; 1471 case 'c': 1472 if (!cur_client) { 1473 fio_show_option_help(optarg); 1474 do_exit++; 1475 } 1476 break; 1477 case 'i': 1478 if (!cur_client) { 1479 fio_show_ioengine_help(optarg); 1480 do_exit++; 1481 } 1482 break; 1483 case 's': 1484 dump_cmdline = 1; 1485 break; 1486 case 'r': 1487 read_only = 1; 1488 break; 1489 case 'v': 1490 if (!cur_client) { 1491 log_info("%s\n", fio_version_string); 1492 do_exit++; 1493 } 1494 break; 1495 case 'V': 1496 terse_version = atoi(optarg); 1497 if (!(terse_version == 2 || terse_version == 3 || 1498 terse_version == 4)) { 1499 log_err("fio: bad terse version format\n"); 1500 exit_val = 1; 1501 do_exit++; 1502 } 1503 break; 1504 case 'e': 1505 if (!strcmp("always", optarg)) 1506 eta_print = FIO_ETA_ALWAYS; 1507 else if (!strcmp("never", optarg)) 1508 eta_print = FIO_ETA_NEVER; 1509 break; 1510 case 'd': 1511 if (set_debug(optarg)) 1512 do_exit++; 1513 break; 1514 case 'x': { 1515 size_t new_size; 1516 1517 if (!strcmp(optarg, "global")) { 1518 log_err("fio: can't use global as only " 1519 "section\n"); 1520 do_exit++; 1521 exit_val = 1; 1522 break; 1523 } 1524 new_size = (nr_job_sections + 1) * sizeof(char *); 1525 job_sections = realloc(job_sections, new_size); 1526 job_sections[nr_job_sections] = strdup(optarg); 1527 nr_job_sections++; 1528 break; 1529 } 1530 case 'p': 1531 exec_profile = strdup(optarg); 1532 break; 1533 case FIO_GETOPT_JOB: { 1534 const char *opt = l_opts[lidx].name; 1535 char *val = optarg; 1536 1537 if (!strncmp(opt, "name", 4) && td) { 1538 ret = add_job(td, td->o.name ?: "fio", 0); 1539 if (ret) 1540 return 0; 1541 td = NULL; 1542 } 1543 if (!td) { 1544 int is_section = !strncmp(opt, "name", 4); 1545 int global = 0; 1546 1547 if (!is_section || !strncmp(val, "global", 6)) 1548 global = 1; 1549 1550 if (is_section && skip_this_section(val)) 1551 continue; 1552 1553 td = get_new_job(global, &def_thread, 1); 1554 if (!td || ioengine_load(td)) 1555 return 0; 1556 fio_options_set_ioengine_opts(l_opts, td); 1557 } 1558 1559 ret = fio_cmd_option_parse(td, opt, val); 1560 1561 if (!ret && !strcmp(opt, "ioengine")) { 1562 free_ioengine(td); 1563 if (ioengine_load(td)) 1564 return 0; 1565 fio_options_set_ioengine_opts(l_opts, td); 1566 } 1567 break; 1568 } 1569 case FIO_GETOPT_IOENGINE: { 1570 const char *opt = l_opts[lidx].name; 1571 char *val = optarg; 1572 opt = l_opts[lidx].name; 1573 val = optarg; 1574 ret = fio_cmd_ioengine_option_parse(td, opt, val); 1575 break; 1576 } 1577 case 'w': 1578 warnings_fatal = 1; 1579 break; 1580 case 'j': 1581 max_jobs = atoi(optarg); 1582 if (!max_jobs || max_jobs > REAL_MAX_JOBS) { 1583 log_err("fio: invalid max jobs: %d\n", max_jobs); 1584 do_exit++; 1585 exit_val = 1; 1586 } 1587 break; 1588 case 'S': 1589 if (nr_clients) { 1590 log_err("fio: can't be both client and server\n"); 1591 do_exit++; 1592 exit_val = 1; 1593 break; 1594 } 1595 if (optarg) 1596 fio_server_set_arg(optarg); 1597 is_backend = 1; 1598 backend = 1; 1599 break; 1600 case 'D': 1601 pid_file = strdup(optarg); 1602 break; 1603 case 'C': 1604 if (is_backend) { 1605 log_err("fio: can't be both client and server\n"); 1606 do_exit++; 1607 exit_val = 1; 1608 break; 1609 } 1610 if (fio_client_add(optarg, &cur_client)) { 1611 log_err("fio: failed adding client %s\n", optarg); 1612 do_exit++; 1613 exit_val = 1; 1614 break; 1615 } 1616 /* 1617 * If the next argument exists and isn't an option, 1618 * assume it's a job file for this client only. 1619 */ 1620 while (optind < argc) { 1621 if (!strncmp(argv[optind], "--", 2) || 1622 !strncmp(argv[optind], "-", 1)) 1623 break; 1624 1625 fio_client_add_ini_file(cur_client, argv[optind]); 1626 optind++; 1627 } 1628 break; 1629 case 'T': 1630 do_exit++; 1631 exit_val = fio_monotonic_clocktest(); 1632 break; 1633 default: 1634 do_exit++; 1635 exit_val = 1; 1636 break; 1637 } 1638 if (do_exit) 1639 break; 1640 } 1641 1642 if (do_exit) { 1643 if (exit_val && !(is_backend || nr_clients)) 1644 exit(exit_val); 1645 } 1646 1647 if (nr_clients && fio_clients_connect()) { 1648 do_exit++; 1649 exit_val = 1; 1650 return -1; 1651 } 1652 1653 if (is_backend && backend) 1654 return fio_start_server(pid_file); 1655 1656 if (td) { 1657 if (!ret) 1658 ret = add_job(td, td->o.name ?: "fio", 0); 1659 } 1660 1661 while (!ret && optind < argc) { 1662 ini_idx++; 1663 ini_file = realloc(ini_file, ini_idx * sizeof(char *)); 1664 ini_file[ini_idx - 1] = strdup(argv[optind]); 1665 optind++; 1666 } 1667 1668 return ini_idx; 1669} 1670 1671int parse_options(int argc, char *argv[]) 1672{ 1673 int job_files, i; 1674 1675 f_out = stdout; 1676 f_err = stderr; 1677 1678 fio_options_fill_optstring(); 1679 fio_options_dup_and_init(l_opts); 1680 1681 atexit(free_shm); 1682 1683 if (fill_def_thread()) 1684 return 1; 1685 1686 job_files = parse_cmd_line(argc, argv); 1687 1688 if (job_files > 0) { 1689 for (i = 0; i < job_files; i++) { 1690 if (fill_def_thread()) 1691 return 1; 1692 if (nr_clients) { 1693 if (fio_clients_send_ini(ini_file[i])) 1694 return 1; 1695 free(ini_file[i]); 1696 } else if (!is_backend) { 1697 if (parse_jobs_ini(ini_file[i], 0, i)) 1698 return 1; 1699 free(ini_file[i]); 1700 } 1701 } 1702 } else if (nr_clients) { 1703 if (fill_def_thread()) 1704 return 1; 1705 if (fio_clients_send_ini(NULL)) 1706 return 1; 1707 } 1708 1709 free(ini_file); 1710 fio_options_free(&def_thread); 1711 1712 if (!thread_number) { 1713 if (dump_cmdline) 1714 return 0; 1715 if (exec_profile) 1716 return 0; 1717 if (is_backend || nr_clients) 1718 return 0; 1719 if (did_arg) 1720 return 0; 1721 1722 log_err("No jobs(s) defined\n\n"); 1723 1724 if (!did_arg) { 1725 usage(argv[0]); 1726 return 1; 1727 } 1728 1729 return 0; 1730 } 1731 1732 if (def_thread.o.gtod_offload) { 1733 fio_gtod_init(); 1734 fio_gtod_offload = 1; 1735 fio_gtod_cpu = def_thread.o.gtod_cpu; 1736 } 1737 1738 if (output_format == FIO_OUTPUT_NORMAL) 1739 log_info("%s\n", fio_version_string); 1740 1741 return 0; 1742} 1743