init.c revision cc372b17f2827e89da79241f1bbaca1e7c650611
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/shm.h> 13#include <sys/types.h> 14#include <sys/stat.h> 15 16#include "fio.h" 17#include "parse.h" 18#include "smalloc.h" 19#include "filehash.h" 20#include "verify.h" 21#include "profile.h" 22#include "server.h" 23 24#include "lib/getopt.h" 25 26const char fio_version_string[] = FIO_VERSION; 27 28#define FIO_RANDSEED (0xb1899bedUL) 29 30static char **ini_file; 31static int max_jobs = FIO_MAX_JOBS; 32static int dump_cmdline; 33static int def_timeout; 34 35static struct thread_data def_thread; 36struct thread_data *threads = NULL; 37 38int exitall_on_terminate = 0; 39int terse_output = 0; 40int eta_print; 41unsigned long long mlock_size = 0; 42FILE *f_out = NULL; 43FILE *f_err = NULL; 44char **job_sections = NULL; 45int nr_job_sections = 0; 46char *exec_profile = NULL; 47int warnings_fatal = 0; 48int terse_version = 3; 49int is_backend = 0; 50int nr_clients = 0; 51int log_syslog = 0; 52 53int write_bw_log = 0; 54int read_only = 0; 55 56static int write_lat_log; 57 58static int prev_group_jobs; 59 60unsigned long fio_debug = 0; 61unsigned int fio_debug_jobno = -1; 62unsigned int *fio_debug_jobp = NULL; 63 64static char cmd_optstr[256]; 65static int did_arg; 66 67const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = { 68 { .u.f = 1.00 }, 69 { .u.f = 5.00 }, 70 { .u.f = 10.00 }, 71 { .u.f = 20.00 }, 72 { .u.f = 30.00 }, 73 { .u.f = 40.00 }, 74 { .u.f = 50.00 }, 75 { .u.f = 60.00 }, 76 { .u.f = 70.00 }, 77 { .u.f = 80.00 }, 78 { .u.f = 90.00 }, 79 { .u.f = 95.00 }, 80 { .u.f = 99.00 }, 81 { .u.f = 99.50 }, 82 { .u.f = 99.90 }, 83 { .u.f = 99.95 }, 84 { .u.f = 99.99 }, 85}; 86 87#define FIO_CLIENT_FLAG (1 << 16) 88 89/* 90 * Command line options. These will contain the above, plus a few 91 * extra that only pertain to fio itself and not jobs. 92 */ 93static struct option l_opts[FIO_NR_OPTIONS] = { 94 { 95 .name = (char *) "output", 96 .has_arg = required_argument, 97 .val = 'o' | FIO_CLIENT_FLAG, 98 }, 99 { 100 .name = (char *) "timeout", 101 .has_arg = required_argument, 102 .val = 't' | FIO_CLIENT_FLAG, 103 }, 104 { 105 .name = (char *) "latency-log", 106 .has_arg = required_argument, 107 .val = 'l' | FIO_CLIENT_FLAG, 108 }, 109 { 110 .name = (char *) "bandwidth-log", 111 .has_arg = required_argument, 112 .val = 'b' | FIO_CLIENT_FLAG, 113 }, 114 { 115 .name = (char *) "minimal", 116 .has_arg = optional_argument, 117 .val = 'm' | FIO_CLIENT_FLAG, 118 }, 119 { 120 .name = (char *) "json-output", 121 .has_arg = optional_argument, 122 .val = 'J' | FIO_CLIENT_FLAG, 123 }, 124 { 125 .name = (char *) "version", 126 .has_arg = no_argument, 127 .val = 'v' | FIO_CLIENT_FLAG, 128 }, 129 { 130 .name = (char *) "help", 131 .has_arg = no_argument, 132 .val = 'h' | FIO_CLIENT_FLAG, 133 }, 134 { 135 .name = (char *) "cmdhelp", 136 .has_arg = optional_argument, 137 .val = 'c' | FIO_CLIENT_FLAG, 138 }, 139 { 140 .name = (char *) "enghelp", 141 .has_arg = optional_argument, 142 .val = 'i' | FIO_CLIENT_FLAG, 143 }, 144 { 145 .name = (char *) "showcmd", 146 .has_arg = no_argument, 147 .val = 's' | FIO_CLIENT_FLAG, 148 }, 149 { 150 .name = (char *) "readonly", 151 .has_arg = no_argument, 152 .val = 'r' | FIO_CLIENT_FLAG, 153 }, 154 { 155 .name = (char *) "eta", 156 .has_arg = required_argument, 157 .val = 'e' | FIO_CLIENT_FLAG, 158 }, 159 { 160 .name = (char *) "debug", 161 .has_arg = required_argument, 162 .val = 'd' | FIO_CLIENT_FLAG, 163 }, 164 { 165 .name = (char *) "section", 166 .has_arg = required_argument, 167 .val = 'x' | FIO_CLIENT_FLAG, 168 }, 169 { 170 .name = (char *) "alloc-size", 171 .has_arg = required_argument, 172 .val = 'a' | FIO_CLIENT_FLAG, 173 }, 174 { 175 .name = (char *) "profile", 176 .has_arg = required_argument, 177 .val = 'p' | FIO_CLIENT_FLAG, 178 }, 179 { 180 .name = (char *) "warnings-fatal", 181 .has_arg = no_argument, 182 .val = 'w' | FIO_CLIENT_FLAG, 183 }, 184 { 185 .name = (char *) "max-jobs", 186 .has_arg = required_argument, 187 .val = 'j' | FIO_CLIENT_FLAG, 188 }, 189 { 190 .name = (char *) "terse-version", 191 .has_arg = required_argument, 192 .val = 'V' | FIO_CLIENT_FLAG, 193 }, 194 { 195 .name = (char *) "server", 196 .has_arg = optional_argument, 197 .val = 'S', 198 }, 199 { .name = (char *) "daemonize", 200 .has_arg = required_argument, 201 .val = 'D', 202 }, 203 { 204 .name = (char *) "client", 205 .has_arg = required_argument, 206 .val = 'C', 207 }, 208 { 209 .name = NULL, 210 }, 211}; 212 213static void free_shm(void) 214{ 215 struct shmid_ds sbuf; 216 217 if (threads) { 218 void *tp = threads; 219 220 threads = NULL; 221 file_hash_exit(); 222 flow_exit(); 223 fio_debug_jobp = NULL; 224 shmdt(tp); 225 shmctl(shm_id, IPC_RMID, &sbuf); 226 } 227 228 scleanup(); 229} 230 231/* 232 * The thread area is shared between the main process and the job 233 * threads/processes. So setup a shared memory segment that will hold 234 * all the job info. We use the end of the region for keeping track of 235 * open files across jobs, for file sharing. 236 */ 237static int setup_thread_area(void) 238{ 239 void *hash; 240 241 if (threads) 242 return 0; 243 244 /* 245 * 1024 is too much on some machines, scale max_jobs if 246 * we get a failure that looks like too large a shm segment 247 */ 248 do { 249 size_t size = max_jobs * sizeof(struct thread_data); 250 251 size += file_hash_size; 252 size += sizeof(unsigned int); 253 254 shm_id = shmget(0, size, IPC_CREAT | 0600); 255 if (shm_id != -1) 256 break; 257 if (errno != EINVAL && errno != ENOMEM) { 258 perror("shmget"); 259 break; 260 } 261 262 max_jobs >>= 1; 263 } while (max_jobs); 264 265 if (shm_id == -1) 266 return 1; 267 268 threads = shmat(shm_id, NULL, 0); 269 if (threads == (void *) -1) { 270 perror("shmat"); 271 return 1; 272 } 273 274 memset(threads, 0, max_jobs * sizeof(struct thread_data)); 275 hash = (void *) threads + max_jobs * sizeof(struct thread_data); 276 fio_debug_jobp = (void *) hash + file_hash_size; 277 *fio_debug_jobp = -1; 278 file_hash_init(hash); 279 280 flow_init(); 281 282 return 0; 283} 284 285/* 286 * Return a free job structure. 287 */ 288static struct thread_data *get_new_job(int global, struct thread_data *parent, 289 int preserve_eo) 290{ 291 struct thread_data *td; 292 293 if (global) 294 return &def_thread; 295 if (setup_thread_area()) { 296 log_err("error: failed to setup shm segment\n"); 297 return NULL; 298 } 299 if (thread_number >= max_jobs) { 300 log_err("error: maximum number of jobs (%d) reached.\n", 301 max_jobs); 302 return NULL; 303 } 304 305 td = &threads[thread_number++]; 306 *td = *parent; 307 308 td->io_ops = NULL; 309 if (!preserve_eo) 310 td->eo = NULL; 311 312 td->o.uid = td->o.gid = -1U; 313 314 dup_files(td, parent); 315 fio_options_mem_dupe(td); 316 317 profile_add_hooks(td); 318 319 td->thread_number = thread_number; 320 return td; 321} 322 323static void put_job(struct thread_data *td) 324{ 325 if (td == &def_thread) 326 return; 327 328 profile_td_exit(td); 329 flow_exit_job(td); 330 331 if (td->error) 332 log_info("fio: %s\n", td->verror); 333 334 fio_options_free(td); 335 if (td->io_ops) 336 free_ioengine(td); 337 338 memset(&threads[td->thread_number - 1], 0, sizeof(*td)); 339 thread_number--; 340} 341 342static int __setup_rate(struct thread_data *td, enum fio_ddir ddir) 343{ 344 unsigned int bs = td->o.min_bs[ddir]; 345 346 assert(ddir_rw(ddir)); 347 348 if (td->o.rate[ddir]) 349 td->rate_bps[ddir] = td->o.rate[ddir]; 350 else 351 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs; 352 353 if (!td->rate_bps[ddir]) { 354 log_err("rate lower than supported\n"); 355 return -1; 356 } 357 358 td->rate_pending_usleep[ddir] = 0; 359 return 0; 360} 361 362static int setup_rate(struct thread_data *td) 363{ 364 int ret = 0; 365 366 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ]) 367 ret = __setup_rate(td, DDIR_READ); 368 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE]) 369 ret |= __setup_rate(td, DDIR_WRITE); 370 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM]) 371 ret |= __setup_rate(td, DDIR_TRIM); 372 373 return ret; 374} 375 376static int fixed_block_size(struct thread_options *o) 377{ 378 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] && 379 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] && 380 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] && 381 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] && 382 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM]; 383} 384 385/* 386 * Lazy way of fixing up options that depend on each other. We could also 387 * define option callback handlers, but this is easier. 388 */ 389static int fixup_options(struct thread_data *td) 390{ 391 struct thread_options *o = &td->o; 392 int ret = 0; 393 394#ifndef FIO_HAVE_PSHARED_MUTEX 395 if (!o->use_thread) { 396 log_info("fio: this platform does not support process shared" 397 " mutexes, forcing use of threads. Use the 'thread'" 398 " option to get rid of this warning.\n"); 399 o->use_thread = 1; 400 ret = warnings_fatal; 401 } 402#endif 403 404 if (o->write_iolog_file && o->read_iolog_file) { 405 log_err("fio: read iolog overrides write_iolog\n"); 406 free(o->write_iolog_file); 407 o->write_iolog_file = NULL; 408 ret = warnings_fatal; 409 } 410 411 /* 412 * only really works with 1 file 413 */ 414 if (o->zone_size && o->open_files == 1) 415 o->zone_size = 0; 416 417 /* 418 * If zone_range isn't specified, backward compatibility dictates it 419 * should be made equal to zone_size. 420 */ 421 if (o->zone_size && !o->zone_range) 422 o->zone_range = o->zone_size; 423 424 /* 425 * Reads can do overwrites, we always need to pre-create the file 426 */ 427 if (td_read(td) || td_rw(td)) 428 o->overwrite = 1; 429 430 if (!o->min_bs[DDIR_READ]) 431 o->min_bs[DDIR_READ] = o->bs[DDIR_READ]; 432 if (!o->max_bs[DDIR_READ]) 433 o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; 434 if (!o->min_bs[DDIR_WRITE]) 435 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 436 if (!o->max_bs[DDIR_WRITE]) 437 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 438 if (!o->min_bs[DDIR_TRIM]) 439 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 440 if (!o->max_bs[DDIR_TRIM]) 441 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 442 443 444 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); 445 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs); 446 447 /* 448 * For random IO, allow blockalign offset other than min_bs. 449 */ 450 if (!o->ba[DDIR_READ] || !td_random(td)) 451 o->ba[DDIR_READ] = o->min_bs[DDIR_READ]; 452 if (!o->ba[DDIR_WRITE] || !td_random(td)) 453 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE]; 454 if (!o->ba[DDIR_TRIM] || !td_random(td)) 455 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM]; 456 457 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] || 458 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] || 459 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) && 460 !o->norandommap) { 461 log_err("fio: Any use of blockalign= turns off randommap\n"); 462 o->norandommap = 1; 463 ret = warnings_fatal; 464 } 465 466 if (!o->file_size_high) 467 o->file_size_high = o->file_size_low; 468 469 if (o->norandommap && o->verify != VERIFY_NONE 470 && !fixed_block_size(o)) { 471 log_err("fio: norandommap given for variable block sizes, " 472 "verify disabled\n"); 473 o->verify = VERIFY_NONE; 474 ret = warnings_fatal; 475 } 476 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) 477 log_err("fio: bs_unaligned may not work with raw io\n"); 478 479 /* 480 * thinktime_spin must be less than thinktime 481 */ 482 if (o->thinktime_spin > o->thinktime) 483 o->thinktime_spin = o->thinktime; 484 485 /* 486 * The low water mark cannot be bigger than the iodepth 487 */ 488 if (o->iodepth_low > o->iodepth || !o->iodepth_low) { 489 /* 490 * syslet work around - if the workload is sequential, 491 * we want to let the queue drain all the way down to 492 * avoid seeking between async threads 493 */ 494 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) 495 o->iodepth_low = 1; 496 else 497 o->iodepth_low = o->iodepth; 498 } 499 500 /* 501 * If batch number isn't set, default to the same as iodepth 502 */ 503 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) 504 o->iodepth_batch = o->iodepth; 505 506 if (o->nr_files > td->files_index) 507 o->nr_files = td->files_index; 508 509 if (o->open_files > o->nr_files || !o->open_files) 510 o->open_files = o->nr_files; 511 512 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) && 513 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) || 514 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) && 515 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) { 516 log_err("fio: rate and rate_iops are mutually exclusive\n"); 517 ret = 1; 518 } 519 if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) || 520 (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) || 521 (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) || 522 (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) || 523 (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) || 524 (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) { 525 log_err("fio: minimum rate exceeds rate\n"); 526 ret = 1; 527 } 528 529 if (!o->timeout && o->time_based) { 530 log_err("fio: time_based requires a runtime/timeout setting\n"); 531 o->time_based = 0; 532 ret = warnings_fatal; 533 } 534 535 if (o->fill_device && !o->size) 536 o->size = -1ULL; 537 538 if (o->verify != VERIFY_NONE) { 539 if (td_write(td) && o->do_verify && o->numjobs > 1) { 540 log_info("Multiple writers may overwrite blocks that " 541 "belong to other jobs. This can cause " 542 "verification failures.\n"); 543 ret = warnings_fatal; 544 } 545 546 o->refill_buffers = 1; 547 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] && 548 !o->verify_interval) 549 o->verify_interval = o->min_bs[DDIR_WRITE]; 550 } 551 552 if (o->pre_read) { 553 o->invalidate_cache = 0; 554 if (td->io_ops->flags & FIO_PIPEIO) { 555 log_info("fio: cannot pre-read files with an IO engine" 556 " that isn't seekable. Pre-read disabled.\n"); 557 ret = warnings_fatal; 558 } 559 } 560 561#ifndef FIO_HAVE_FDATASYNC 562 if (o->fdatasync_blocks) { 563 log_info("fio: this platform does not support fdatasync()" 564 " falling back to using fsync(). Use the 'fsync'" 565 " option instead of 'fdatasync' to get rid of" 566 " this warning\n"); 567 o->fsync_blocks = o->fdatasync_blocks; 568 o->fdatasync_blocks = 0; 569 ret = warnings_fatal; 570 } 571#endif 572 573#ifdef WIN32 574 /* 575 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface, 576 * so fail if we're passed those flags 577 */ 578 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) { 579 log_err("fio: Windows does not support direct or non-buffered io with" 580 " the synchronous ioengines. Use the 'windowsaio' ioengine" 581 " with 'direct=1' and 'iodepth=1' instead.\n"); 582 ret = 1; 583 } 584#endif 585 586 /* 587 * For fully compressible data, just zero them at init time. 588 * It's faster than repeatedly filling it. 589 */ 590 if (td->o.compress_percentage == 100) { 591 td->o.zero_buffers = 1; 592 td->o.compress_percentage = 0; 593 } 594 595 return ret; 596} 597 598/* 599 * This function leaks the buffer 600 */ 601static char *to_kmg(unsigned int val) 602{ 603 char *buf = malloc(32); 604 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; 605 char *p = post; 606 607 do { 608 if (val & 1023) 609 break; 610 611 val >>= 10; 612 p++; 613 } while (*p); 614 615 snprintf(buf, 31, "%u%c", val, *p); 616 return buf; 617} 618 619/* External engines are specified by "external:name.o") */ 620static const char *get_engine_name(const char *str) 621{ 622 char *p = strstr(str, ":"); 623 624 if (!p) 625 return str; 626 627 p++; 628 strip_blank_front(&p); 629 strip_blank_end(p); 630 return p; 631} 632 633static int exists_and_not_file(const char *filename) 634{ 635 struct stat sb; 636 637 if (lstat(filename, &sb) == -1) 638 return 0; 639 640 /* \\.\ is the device namespace in Windows, where every file 641 * is a device node */ 642 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0) 643 return 0; 644 645 return 1; 646} 647 648static void td_fill_rand_seeds_os(struct thread_data *td) 649{ 650 os_random_seed(td->rand_seeds[0], &td->bsrange_state); 651 os_random_seed(td->rand_seeds[1], &td->verify_state); 652 os_random_seed(td->rand_seeds[2], &td->rwmix_state); 653 654 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 655 os_random_seed(td->rand_seeds[3], &td->next_file_state); 656 657 os_random_seed(td->rand_seeds[5], &td->file_size_state); 658 os_random_seed(td->rand_seeds[6], &td->trim_state); 659 660 if (!td_random(td)) 661 return; 662 663 if (td->o.rand_repeatable) 664 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number; 665 666 os_random_seed(td->rand_seeds[4], &td->random_state); 667} 668 669static void td_fill_rand_seeds_internal(struct thread_data *td) 670{ 671 init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]); 672 init_rand_seed(&td->__verify_state, td->rand_seeds[1]); 673 init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]); 674 675 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 676 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]); 677 678 init_rand_seed(&td->__file_size_state, td->rand_seeds[5]); 679 init_rand_seed(&td->__trim_state, td->rand_seeds[6]); 680 681 if (!td_random(td)) 682 return; 683 684 if (td->o.rand_repeatable) 685 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number; 686 687 init_rand_seed(&td->__random_state, td->rand_seeds[4]); 688} 689 690void td_fill_rand_seeds(struct thread_data *td) 691{ 692 if (td->o.use_os_rand) 693 td_fill_rand_seeds_os(td); 694 else 695 td_fill_rand_seeds_internal(td); 696 697 init_rand_seed(&td->buf_state, td->rand_seeds[7]); 698} 699 700 701/* 702 * Initializes the ioengine configured for a job, if it has not been done so 703 * already. 704 */ 705int ioengine_load(struct thread_data *td) 706{ 707 const char *engine; 708 709 /* 710 * Engine has already been loaded. 711 */ 712 if (td->io_ops) 713 return 0; 714 715 engine = get_engine_name(td->o.ioengine); 716 td->io_ops = load_ioengine(td, engine); 717 if (!td->io_ops) { 718 log_err("fio: failed to load engine %s\n", engine); 719 return 1; 720 } 721 722 if (td->io_ops->option_struct_size && td->io_ops->options) { 723 /* 724 * In cases where td->eo is set, clone it for a child thread. 725 * This requires that the parent thread has the same ioengine, 726 * but that requirement must be enforced by the code which 727 * cloned the thread. 728 */ 729 void *origeo = td->eo; 730 /* 731 * Otherwise use the default thread options. 732 */ 733 if (!origeo && td != &def_thread && def_thread.eo && 734 def_thread.io_ops->options == td->io_ops->options) 735 origeo = def_thread.eo; 736 737 options_init(td->io_ops->options); 738 td->eo = malloc(td->io_ops->option_struct_size); 739 /* 740 * Use the default thread as an option template if this uses the 741 * same options structure and there are non-default options 742 * used. 743 */ 744 if (origeo) { 745 memcpy(td->eo, origeo, td->io_ops->option_struct_size); 746 options_mem_dupe(td->eo, td->io_ops->options); 747 } else { 748 memset(td->eo, 0, td->io_ops->option_struct_size); 749 fill_default_options(td->eo, td->io_ops->options); 750 } 751 *(struct thread_data **)td->eo = td; 752 } 753 754 return 0; 755} 756 757/* 758 * Adds a job to the list of things todo. Sanitizes the various options 759 * to make sure we don't have conflicts, and initializes various 760 * members of td. 761 */ 762static int add_job(struct thread_data *td, const char *jobname, int job_add_num) 763{ 764 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, 765 "randread", "randwrite", "randrw", 766 "trim", NULL, NULL, NULL, "randtrim" }; 767 unsigned int i; 768 char fname[PATH_MAX]; 769 int numjobs, file_alloced; 770 771 /* 772 * the def_thread is just for options, it's not a real job 773 */ 774 if (td == &def_thread) 775 return 0; 776 777 /* 778 * if we are just dumping the output command line, don't add the job 779 */ 780 if (dump_cmdline) { 781 put_job(td); 782 return 0; 783 } 784 785 if (profile_td_init(td)) 786 goto err; 787 788 if (ioengine_load(td)) 789 goto err; 790 791 if (td->o.use_thread) 792 nr_thread++; 793 else 794 nr_process++; 795 796 if (td->o.odirect) 797 td->io_ops->flags |= FIO_RAWIO; 798 799 file_alloced = 0; 800 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) { 801 file_alloced = 1; 802 803 if (td->o.nr_files == 1 && exists_and_not_file(jobname)) 804 add_file(td, jobname); 805 else { 806 for (i = 0; i < td->o.nr_files; i++) { 807 sprintf(fname, "%s.%d.%d", jobname, 808 td->thread_number, i); 809 add_file(td, fname); 810 } 811 } 812 } 813 814 if (fixup_options(td)) 815 goto err; 816 817 flow_init_job(td); 818 819 /* 820 * IO engines only need this for option callbacks, and the address may 821 * change in subprocesses. 822 */ 823 if (td->eo) 824 *(struct thread_data **)td->eo = NULL; 825 826 if (td->io_ops->flags & FIO_DISKLESSIO) { 827 struct fio_file *f; 828 829 for_each_file(td, f, i) 830 f->real_file_size = -1ULL; 831 } 832 833 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED); 834 835 td->ts.clat_percentiles = td->o.clat_percentiles; 836 if (td->o.overwrite_plist) 837 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); 838 else 839 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list)); 840 841 for (i = 0; i < DDIR_RWDIR_CNT; i++) { 842 td->ts.clat_stat[i].min_val = ULONG_MAX; 843 td->ts.slat_stat[i].min_val = ULONG_MAX; 844 td->ts.lat_stat[i].min_val = ULONG_MAX; 845 td->ts.bw_stat[i].min_val = ULONG_MAX; 846 } 847 td->ddir_seq_nr = td->o.ddir_seq_nr; 848 849 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) { 850 prev_group_jobs = 0; 851 groupid++; 852 } 853 854 td->groupid = groupid; 855 prev_group_jobs++; 856 857 if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) { 858 td_verror(td, errno, "init_random_state"); 859 goto err; 860 } 861 862 if (setup_rate(td)) 863 goto err; 864 865 if (td->o.write_lat_log) { 866 setup_log(&td->lat_log, td->o.log_avg_msec); 867 setup_log(&td->slat_log, td->o.log_avg_msec); 868 setup_log(&td->clat_log, td->o.log_avg_msec); 869 } 870 if (td->o.write_bw_log) 871 setup_log(&td->bw_log, td->o.log_avg_msec); 872 if (td->o.write_iops_log) 873 setup_log(&td->iops_log, td->o.log_avg_msec); 874 875 if (!td->o.name) 876 td->o.name = strdup(jobname); 877 878 if (!terse_output) { 879 if (!job_add_num) { 880 if (!strcmp(td->io_ops->name, "cpuio")) { 881 log_info("%s: ioengine=cpu, cpuload=%u," 882 " cpucycle=%u\n", td->o.name, 883 td->o.cpuload, 884 td->o.cpucycle); 885 } else { 886 char *c1, *c2, *c3, *c4, *c5, *c6; 887 888 c1 = to_kmg(td->o.min_bs[DDIR_READ]); 889 c2 = to_kmg(td->o.max_bs[DDIR_READ]); 890 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); 891 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); 892 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]); 893 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]); 894 895 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s," 896 " ioengine=%s, iodepth=%u\n", 897 td->o.name, td->groupid, 898 ddir_str[td->o.td_ddir], 899 c1, c2, c3, c4, c5, c6, 900 td->io_ops->name, 901 td->o.iodepth); 902 903 free(c1); 904 free(c2); 905 free(c3); 906 free(c4); 907 free(c5); 908 free(c6); 909 } 910 } else if (job_add_num == 1) 911 log_info("...\n"); 912 } 913 914 /* 915 * recurse add identical jobs, clear numjobs and stonewall options 916 * as they don't apply to sub-jobs 917 */ 918 numjobs = td->o.numjobs; 919 while (--numjobs) { 920 struct thread_data *td_new = get_new_job(0, td, 1); 921 922 if (!td_new) 923 goto err; 924 925 td_new->o.numjobs = 1; 926 td_new->o.stonewall = 0; 927 td_new->o.new_group = 0; 928 929 if (file_alloced) { 930 td_new->o.filename = NULL; 931 td_new->files_index = 0; 932 td_new->files_size = 0; 933 td_new->files = NULL; 934 } 935 936 job_add_num = numjobs - 1; 937 938 if (add_job(td_new, jobname, job_add_num)) 939 goto err; 940 } 941 942 return 0; 943err: 944 put_job(td); 945 return -1; 946} 947 948/* 949 * Parse as if 'o' was a command line 950 */ 951void add_job_opts(const char **o) 952{ 953 struct thread_data *td, *td_parent; 954 int i, in_global = 1; 955 char jobname[32]; 956 957 i = 0; 958 td_parent = td = NULL; 959 while (o[i]) { 960 if (!strncmp(o[i], "name", 4)) { 961 in_global = 0; 962 if (td) 963 add_job(td, jobname, 0); 964 td = NULL; 965 sprintf(jobname, "%s", o[i] + 5); 966 } 967 if (in_global && !td_parent) 968 td_parent = get_new_job(1, &def_thread, 0); 969 else if (!in_global && !td) { 970 if (!td_parent) 971 td_parent = &def_thread; 972 td = get_new_job(0, td_parent, 0); 973 } 974 if (in_global) 975 fio_options_parse(td_parent, (char **) &o[i], 1); 976 else 977 fio_options_parse(td, (char **) &o[i], 1); 978 i++; 979 } 980 981 if (td) 982 add_job(td, jobname, 0); 983} 984 985static int skip_this_section(const char *name) 986{ 987 int i; 988 989 if (!nr_job_sections) 990 return 0; 991 if (!strncmp(name, "global", 6)) 992 return 0; 993 994 for (i = 0; i < nr_job_sections; i++) 995 if (!strcmp(job_sections[i], name)) 996 return 0; 997 998 return 1; 999} 1000 1001static int is_empty_or_comment(char *line) 1002{ 1003 unsigned int i; 1004 1005 for (i = 0; i < strlen(line); i++) { 1006 if (line[i] == ';') 1007 return 1; 1008 if (line[i] == '#') 1009 return 1; 1010 if (!isspace((int) line[i]) && !iscntrl((int) line[i])) 1011 return 0; 1012 } 1013 1014 return 1; 1015} 1016 1017/* 1018 * This is our [ini] type file parser. 1019 */ 1020int parse_jobs_ini(char *file, int is_buf, int stonewall_flag) 1021{ 1022 unsigned int global; 1023 struct thread_data *td; 1024 char *string, *name; 1025 FILE *f; 1026 char *p; 1027 int ret = 0, stonewall; 1028 int first_sect = 1; 1029 int skip_fgets = 0; 1030 int inside_skip = 0; 1031 char **opts; 1032 int i, alloc_opts, num_opts; 1033 1034 if (is_buf) 1035 f = NULL; 1036 else { 1037 if (!strcmp(file, "-")) 1038 f = stdin; 1039 else 1040 f = fopen(file, "r"); 1041 1042 if (!f) { 1043 perror("fopen job file"); 1044 return 1; 1045 } 1046 } 1047 1048 string = malloc(4096); 1049 1050 /* 1051 * it's really 256 + small bit, 280 should suffice 1052 */ 1053 name = malloc(280); 1054 memset(name, 0, 280); 1055 1056 alloc_opts = 8; 1057 opts = malloc(sizeof(char *) * alloc_opts); 1058 num_opts = 0; 1059 1060 stonewall = stonewall_flag; 1061 do { 1062 /* 1063 * if skip_fgets is set, we already have loaded a line we 1064 * haven't handled. 1065 */ 1066 if (!skip_fgets) { 1067 if (is_buf) 1068 p = strsep(&file, "\n"); 1069 else 1070 p = fgets(string, 4096, f); 1071 if (!p) 1072 break; 1073 } 1074 1075 skip_fgets = 0; 1076 strip_blank_front(&p); 1077 strip_blank_end(p); 1078 1079 if (is_empty_or_comment(p)) 1080 continue; 1081 if (sscanf(p, "[%255[^\n]]", name) != 1) { 1082 if (inside_skip) 1083 continue; 1084 log_err("fio: option <%s> outside of [] job section\n", 1085 p); 1086 break; 1087 } 1088 1089 name[strlen(name) - 1] = '\0'; 1090 1091 if (skip_this_section(name)) { 1092 inside_skip = 1; 1093 continue; 1094 } else 1095 inside_skip = 0; 1096 1097 global = !strncmp(name, "global", 6); 1098 1099 if (dump_cmdline) { 1100 if (first_sect) 1101 log_info("fio "); 1102 if (!global) 1103 log_info("--name=%s ", name); 1104 first_sect = 0; 1105 } 1106 1107 td = get_new_job(global, &def_thread, 0); 1108 if (!td) { 1109 ret = 1; 1110 break; 1111 } 1112 1113 /* 1114 * Seperate multiple job files by a stonewall 1115 */ 1116 if (!global && stonewall) { 1117 td->o.stonewall = stonewall; 1118 stonewall = 0; 1119 } 1120 1121 num_opts = 0; 1122 memset(opts, 0, alloc_opts * sizeof(char *)); 1123 1124 while (1) { 1125 if (is_buf) 1126 p = strsep(&file, "\n"); 1127 else 1128 p = fgets(string, 4096, f); 1129 if (!p) 1130 break; 1131 1132 if (is_empty_or_comment(p)) 1133 continue; 1134 1135 strip_blank_front(&p); 1136 1137 /* 1138 * new section, break out and make sure we don't 1139 * fgets() a new line at the top. 1140 */ 1141 if (p[0] == '[') { 1142 skip_fgets = 1; 1143 break; 1144 } 1145 1146 strip_blank_end(p); 1147 1148 if (num_opts == alloc_opts) { 1149 alloc_opts <<= 1; 1150 opts = realloc(opts, 1151 alloc_opts * sizeof(char *)); 1152 } 1153 1154 opts[num_opts] = strdup(p); 1155 num_opts++; 1156 } 1157 1158 ret = fio_options_parse(td, opts, num_opts); 1159 if (!ret) { 1160 if (dump_cmdline) 1161 for (i = 0; i < num_opts; i++) 1162 log_info("--%s ", opts[i]); 1163 1164 ret = add_job(td, name, 0); 1165 } else { 1166 log_err("fio: job %s dropped\n", name); 1167 put_job(td); 1168 } 1169 1170 for (i = 0; i < num_opts; i++) 1171 free(opts[i]); 1172 num_opts = 0; 1173 } while (!ret); 1174 1175 if (dump_cmdline) 1176 log_info("\n"); 1177 1178 i = 0; 1179 while (i < nr_job_sections) { 1180 free(job_sections[i]); 1181 i++; 1182 } 1183 1184 for (i = 0; i < num_opts; i++) 1185 free(opts[i]); 1186 1187 free(string); 1188 free(name); 1189 free(opts); 1190 if (!is_buf && f != stdin) 1191 fclose(f); 1192 return ret; 1193} 1194 1195static int fill_def_thread(void) 1196{ 1197 memset(&def_thread, 0, sizeof(def_thread)); 1198 1199 fio_getaffinity(getpid(), &def_thread.o.cpumask); 1200 def_thread.o.timeout = def_timeout; 1201 1202 /* 1203 * fill default options 1204 */ 1205 fio_fill_default_options(&def_thread); 1206 return 0; 1207} 1208 1209static void usage(const char *name) 1210{ 1211 printf("%s\n", fio_version_string); 1212 printf("%s [options] [job options] <job file(s)>\n", name); 1213 printf(" --debug=options\tEnable debug logging. May be one/more of:\n" 1214 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n" 1215 "\t\t\tdiskutil,job,mutex,profile,time,net\n"); 1216 printf(" --output\t\tWrite output to file\n"); 1217 printf(" --runtime\t\tRuntime in seconds\n"); 1218 printf(" --latency-log\t\tGenerate per-job latency logs\n"); 1219 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n"); 1220 printf(" --minimal\t\tMinimal (terse) output\n"); 1221 printf(" --version\t\tPrint version info and exit\n"); 1222 printf(" --terse-version=x\tSet terse version output format to 'x'\n"); 1223 printf(" --help\t\tPrint this page\n"); 1224 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of" 1225 " them\n"); 1226 printf(" --enghelp=engine\tPrint ioengine help, or list" 1227 " available ioengines\n"); 1228 printf(" --enghelp=engine,cmd\tPrint help for an ioengine" 1229 " cmd\n"); 1230 printf(" --showcmd\t\tTurn a job file into command line options\n"); 1231 printf(" --eta=when\t\tWhen ETA estimate should be printed\n"); 1232 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n"); 1233 printf(" --readonly\t\tTurn on safety read-only checks, preventing" 1234 " writes\n"); 1235 printf(" --section=name\tOnly run specified section in job file\n"); 1236 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb" 1237 " (def 1024)\n"); 1238 printf(" --warnings-fatal\tFio parser warnings are fatal\n"); 1239 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n"); 1240 printf(" --server=args\t\tStart a backend fio server\n"); 1241 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n"); 1242 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n"); 1243 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>"); 1244 printf("\n Jens Axboe <jaxboe@fusionio.com>\n"); 1245} 1246 1247#ifdef FIO_INC_DEBUG 1248struct debug_level debug_levels[] = { 1249 { .name = "process", .shift = FD_PROCESS, }, 1250 { .name = "file", .shift = FD_FILE, }, 1251 { .name = "io", .shift = FD_IO, }, 1252 { .name = "mem", .shift = FD_MEM, }, 1253 { .name = "blktrace", .shift = FD_BLKTRACE }, 1254 { .name = "verify", .shift = FD_VERIFY }, 1255 { .name = "random", .shift = FD_RANDOM }, 1256 { .name = "parse", .shift = FD_PARSE }, 1257 { .name = "diskutil", .shift = FD_DISKUTIL }, 1258 { .name = "job", .shift = FD_JOB }, 1259 { .name = "mutex", .shift = FD_MUTEX }, 1260 { .name = "profile", .shift = FD_PROFILE }, 1261 { .name = "time", .shift = FD_TIME }, 1262 { .name = "net", .shift = FD_NET }, 1263 { .name = NULL, }, 1264}; 1265 1266static int set_debug(const char *string) 1267{ 1268 struct debug_level *dl; 1269 char *p = (char *) string; 1270 char *opt; 1271 int i; 1272 1273 if (!strcmp(string, "?") || !strcmp(string, "help")) { 1274 log_info("fio: dumping debug options:"); 1275 for (i = 0; debug_levels[i].name; i++) { 1276 dl = &debug_levels[i]; 1277 log_info("%s,", dl->name); 1278 } 1279 log_info("all\n"); 1280 return 1; 1281 } 1282 1283 while ((opt = strsep(&p, ",")) != NULL) { 1284 int found = 0; 1285 1286 if (!strncmp(opt, "all", 3)) { 1287 log_info("fio: set all debug options\n"); 1288 fio_debug = ~0UL; 1289 continue; 1290 } 1291 1292 for (i = 0; debug_levels[i].name; i++) { 1293 dl = &debug_levels[i]; 1294 found = !strncmp(opt, dl->name, strlen(dl->name)); 1295 if (!found) 1296 continue; 1297 1298 if (dl->shift == FD_JOB) { 1299 opt = strchr(opt, ':'); 1300 if (!opt) { 1301 log_err("fio: missing job number\n"); 1302 break; 1303 } 1304 opt++; 1305 fio_debug_jobno = atoi(opt); 1306 log_info("fio: set debug jobno %d\n", 1307 fio_debug_jobno); 1308 } else { 1309 log_info("fio: set debug option %s\n", opt); 1310 fio_debug |= (1UL << dl->shift); 1311 } 1312 break; 1313 } 1314 1315 if (!found) 1316 log_err("fio: debug mask %s not found\n", opt); 1317 } 1318 return 0; 1319} 1320#else 1321static int set_debug(const char *string) 1322{ 1323 log_err("fio: debug tracing not included in build\n"); 1324 return 1; 1325} 1326#endif 1327 1328static void fio_options_fill_optstring(void) 1329{ 1330 char *ostr = cmd_optstr; 1331 int i, c; 1332 1333 c = i = 0; 1334 while (l_opts[i].name) { 1335 ostr[c++] = l_opts[i].val; 1336 if (l_opts[i].has_arg == required_argument) 1337 ostr[c++] = ':'; 1338 else if (l_opts[i].has_arg == optional_argument) { 1339 ostr[c++] = ':'; 1340 ostr[c++] = ':'; 1341 } 1342 i++; 1343 } 1344 ostr[c] = '\0'; 1345} 1346 1347static int client_flag_set(char c) 1348{ 1349 int i; 1350 1351 i = 0; 1352 while (l_opts[i].name) { 1353 int val = l_opts[i].val; 1354 1355 if (c == (val & 0xff)) 1356 return (val & FIO_CLIENT_FLAG); 1357 1358 i++; 1359 } 1360 1361 return 0; 1362} 1363 1364void parse_cmd_client(void *client, char *opt) 1365{ 1366 fio_client_add_cmd_option(client, opt); 1367} 1368 1369int parse_cmd_line(int argc, char *argv[]) 1370{ 1371 struct thread_data *td = NULL; 1372 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; 1373 char *ostr = cmd_optstr; 1374 void *pid_file = NULL; 1375 void *cur_client = NULL; 1376 int backend = 0; 1377 1378 /* 1379 * Reset optind handling, since we may call this multiple times 1380 * for the backend. 1381 */ 1382 optind = 1; 1383 1384 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) { 1385 did_arg = 1; 1386 1387 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) { 1388 parse_cmd_client(cur_client, argv[optind - 1]); 1389 c &= ~FIO_CLIENT_FLAG; 1390 } 1391 1392 switch (c) { 1393 case 'a': 1394 smalloc_pool_size = atoi(optarg); 1395 break; 1396 case 't': 1397 def_timeout = atoi(optarg); 1398 break; 1399 case 'l': 1400 write_lat_log = 1; 1401 break; 1402 case 'b': 1403 write_bw_log = 1; 1404 break; 1405 case 'o': 1406 f_out = fopen(optarg, "w+"); 1407 if (!f_out) { 1408 perror("fopen output"); 1409 exit(1); 1410 } 1411 f_err = f_out; 1412 break; 1413 case 'm': 1414 terse_output = 1; 1415 break; 1416 case 'J': 1417 terse_version = 4; 1418 terse_output = 1; 1419 break; 1420 case 'h': 1421 if (!cur_client) { 1422 usage(argv[0]); 1423 do_exit++; 1424 } 1425 break; 1426 case 'c': 1427 if (!cur_client) { 1428 fio_show_option_help(optarg); 1429 do_exit++; 1430 } 1431 break; 1432 case 'i': 1433 if (!cur_client) { 1434 fio_show_ioengine_help(optarg); 1435 do_exit++; 1436 } 1437 break; 1438 case 's': 1439 dump_cmdline = 1; 1440 break; 1441 case 'r': 1442 read_only = 1; 1443 break; 1444 case 'v': 1445 if (!cur_client) { 1446 log_info("%s\n", fio_version_string); 1447 do_exit++; 1448 } 1449 break; 1450 case 'V': 1451 if (terse_version == 4) 1452 break; 1453 terse_version = atoi(optarg); 1454 if (!(terse_version == 2 || terse_version == 3)) { 1455 log_err("fio: bad terse version format\n"); 1456 exit_val = 1; 1457 do_exit++; 1458 } 1459 break; 1460 case 'e': 1461 if (!strcmp("always", optarg)) 1462 eta_print = FIO_ETA_ALWAYS; 1463 else if (!strcmp("never", optarg)) 1464 eta_print = FIO_ETA_NEVER; 1465 break; 1466 case 'd': 1467 if (set_debug(optarg)) 1468 do_exit++; 1469 break; 1470 case 'x': { 1471 size_t new_size; 1472 1473 if (!strcmp(optarg, "global")) { 1474 log_err("fio: can't use global as only " 1475 "section\n"); 1476 do_exit++; 1477 exit_val = 1; 1478 break; 1479 } 1480 new_size = (nr_job_sections + 1) * sizeof(char *); 1481 job_sections = realloc(job_sections, new_size); 1482 job_sections[nr_job_sections] = strdup(optarg); 1483 nr_job_sections++; 1484 break; 1485 } 1486 case 'p': 1487 exec_profile = strdup(optarg); 1488 break; 1489 case FIO_GETOPT_JOB: { 1490 const char *opt = l_opts[lidx].name; 1491 char *val = optarg; 1492 1493 if (!strncmp(opt, "name", 4) && td) { 1494 ret = add_job(td, td->o.name ?: "fio", 0); 1495 if (ret) 1496 return 0; 1497 td = NULL; 1498 } 1499 if (!td) { 1500 int is_section = !strncmp(opt, "name", 4); 1501 int global = 0; 1502 1503 if (!is_section || !strncmp(val, "global", 6)) 1504 global = 1; 1505 1506 if (is_section && skip_this_section(val)) 1507 continue; 1508 1509 td = get_new_job(global, &def_thread, 1); 1510 if (!td || ioengine_load(td)) 1511 return 0; 1512 fio_options_set_ioengine_opts(l_opts, td); 1513 } 1514 1515 ret = fio_cmd_option_parse(td, opt, val); 1516 1517 if (!ret && !strcmp(opt, "ioengine")) { 1518 free_ioengine(td); 1519 if (ioengine_load(td)) 1520 return 0; 1521 fio_options_set_ioengine_opts(l_opts, td); 1522 } 1523 break; 1524 } 1525 case FIO_GETOPT_IOENGINE: { 1526 const char *opt = l_opts[lidx].name; 1527 char *val = optarg; 1528 opt = l_opts[lidx].name; 1529 val = optarg; 1530 ret = fio_cmd_ioengine_option_parse(td, opt, val); 1531 break; 1532 } 1533 case 'w': 1534 warnings_fatal = 1; 1535 break; 1536 case 'j': 1537 max_jobs = atoi(optarg); 1538 if (!max_jobs || max_jobs > REAL_MAX_JOBS) { 1539 log_err("fio: invalid max jobs: %d\n", max_jobs); 1540 do_exit++; 1541 exit_val = 1; 1542 } 1543 break; 1544 case 'S': 1545 if (nr_clients) { 1546 log_err("fio: can't be both client and server\n"); 1547 do_exit++; 1548 exit_val = 1; 1549 break; 1550 } 1551 if (optarg) 1552 fio_server_set_arg(optarg); 1553 is_backend = 1; 1554 backend = 1; 1555 break; 1556 case 'D': 1557 pid_file = strdup(optarg); 1558 break; 1559 case 'C': 1560 if (is_backend) { 1561 log_err("fio: can't be both client and server\n"); 1562 do_exit++; 1563 exit_val = 1; 1564 break; 1565 } 1566 if (fio_client_add(optarg, &cur_client)) { 1567 log_err("fio: failed adding client %s\n", optarg); 1568 do_exit++; 1569 exit_val = 1; 1570 break; 1571 } 1572 /* 1573 * If the next argument exists and isn't an option, 1574 * assume it's a job file for this client only. 1575 */ 1576 while (optind < argc) { 1577 if (!strncmp(argv[optind], "--", 2) || 1578 !strncmp(argv[optind], "-", 1)) 1579 break; 1580 1581 fio_client_add_ini_file(cur_client, argv[optind]); 1582 optind++; 1583 } 1584 break; 1585 default: 1586 do_exit++; 1587 exit_val = 1; 1588 break; 1589 } 1590 if (do_exit) 1591 break; 1592 } 1593 1594 if (do_exit) { 1595 if (exit_val && !(is_backend || nr_clients)) 1596 exit(exit_val); 1597 } 1598 1599 if (nr_clients && fio_clients_connect()) { 1600 do_exit++; 1601 exit_val = 1; 1602 return -1; 1603 } 1604 1605 if (is_backend && backend) 1606 return fio_start_server(pid_file); 1607 1608 if (td) { 1609 if (!ret) 1610 ret = add_job(td, td->o.name ?: "fio", 0); 1611 } 1612 1613 while (!ret && optind < argc) { 1614 ini_idx++; 1615 ini_file = realloc(ini_file, ini_idx * sizeof(char *)); 1616 ini_file[ini_idx - 1] = strdup(argv[optind]); 1617 optind++; 1618 } 1619 1620 return ini_idx; 1621} 1622 1623int parse_options(int argc, char *argv[]) 1624{ 1625 int job_files, i; 1626 1627 f_out = stdout; 1628 f_err = stderr; 1629 1630 fio_options_fill_optstring(); 1631 fio_options_dup_and_init(l_opts); 1632 1633 atexit(free_shm); 1634 1635 if (fill_def_thread()) 1636 return 1; 1637 1638 job_files = parse_cmd_line(argc, argv); 1639 1640 if (job_files > 0) { 1641 for (i = 0; i < job_files; i++) { 1642 if (fill_def_thread()) 1643 return 1; 1644 if (nr_clients) { 1645 if (fio_clients_send_ini(ini_file[i])) 1646 return 1; 1647 free(ini_file[i]); 1648 } else if (!is_backend) { 1649 if (parse_jobs_ini(ini_file[i], 0, i)) 1650 return 1; 1651 free(ini_file[i]); 1652 } 1653 } 1654 } else if (nr_clients) { 1655 if (fill_def_thread()) 1656 return 1; 1657 if (fio_clients_send_ini(NULL)) 1658 return 1; 1659 } 1660 1661 free(ini_file); 1662 fio_options_free(&def_thread); 1663 1664 if (!thread_number) { 1665 if (dump_cmdline) 1666 return 0; 1667 if (exec_profile) 1668 return 0; 1669 if (is_backend || nr_clients) 1670 return 0; 1671 if (did_arg) 1672 return 0; 1673 1674 log_err("No jobs(s) defined\n\n"); 1675 1676 if (!did_arg) { 1677 usage(argv[0]); 1678 return 1; 1679 } 1680 1681 return 0; 1682 } 1683 1684 if (def_thread.o.gtod_offload) { 1685 fio_gtod_init(); 1686 fio_gtod_offload = 1; 1687 fio_gtod_cpu = def_thread.o.gtod_cpu; 1688 } 1689 1690 if (!terse_output) 1691 log_info("%s\n", fio_version_string); 1692 1693 return 0; 1694} 1695