init.c revision 3449ab8c4d2addb716105ded698438a1d3811572
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 *) "version", 121 .has_arg = no_argument, 122 .val = 'v' | FIO_CLIENT_FLAG, 123 }, 124 { 125 .name = (char *) "help", 126 .has_arg = no_argument, 127 .val = 'h' | FIO_CLIENT_FLAG, 128 }, 129 { 130 .name = (char *) "cmdhelp", 131 .has_arg = optional_argument, 132 .val = 'c' | FIO_CLIENT_FLAG, 133 }, 134 { 135 .name = (char *) "enghelp", 136 .has_arg = optional_argument, 137 .val = 'i' | FIO_CLIENT_FLAG, 138 }, 139 { 140 .name = (char *) "showcmd", 141 .has_arg = no_argument, 142 .val = 's' | FIO_CLIENT_FLAG, 143 }, 144 { 145 .name = (char *) "readonly", 146 .has_arg = no_argument, 147 .val = 'r' | FIO_CLIENT_FLAG, 148 }, 149 { 150 .name = (char *) "eta", 151 .has_arg = required_argument, 152 .val = 'e' | FIO_CLIENT_FLAG, 153 }, 154 { 155 .name = (char *) "debug", 156 .has_arg = required_argument, 157 .val = 'd' | FIO_CLIENT_FLAG, 158 }, 159 { 160 .name = (char *) "section", 161 .has_arg = required_argument, 162 .val = 'x' | FIO_CLIENT_FLAG, 163 }, 164 { 165 .name = (char *) "alloc-size", 166 .has_arg = required_argument, 167 .val = 'a' | FIO_CLIENT_FLAG, 168 }, 169 { 170 .name = (char *) "profile", 171 .has_arg = required_argument, 172 .val = 'p' | FIO_CLIENT_FLAG, 173 }, 174 { 175 .name = (char *) "warnings-fatal", 176 .has_arg = no_argument, 177 .val = 'w' | FIO_CLIENT_FLAG, 178 }, 179 { 180 .name = (char *) "max-jobs", 181 .has_arg = required_argument, 182 .val = 'j' | FIO_CLIENT_FLAG, 183 }, 184 { 185 .name = (char *) "terse-version", 186 .has_arg = required_argument, 187 .val = 'V' | FIO_CLIENT_FLAG, 188 }, 189 { 190 .name = (char *) "server", 191 .has_arg = optional_argument, 192 .val = 'S', 193 }, 194 { .name = (char *) "daemonize", 195 .has_arg = required_argument, 196 .val = 'D', 197 }, 198 { 199 .name = (char *) "client", 200 .has_arg = required_argument, 201 .val = 'C', 202 }, 203 { 204 .name = NULL, 205 }, 206}; 207 208static void free_shm(void) 209{ 210 struct shmid_ds sbuf; 211 212 if (threads) { 213 void *tp = threads; 214 215 threads = NULL; 216 file_hash_exit(); 217 flow_exit(); 218 fio_debug_jobp = NULL; 219 shmdt(tp); 220 shmctl(shm_id, IPC_RMID, &sbuf); 221 } 222 223 scleanup(); 224} 225 226/* 227 * The thread area is shared between the main process and the job 228 * threads/processes. So setup a shared memory segment that will hold 229 * all the job info. We use the end of the region for keeping track of 230 * open files across jobs, for file sharing. 231 */ 232static int setup_thread_area(void) 233{ 234 void *hash; 235 236 if (threads) 237 return 0; 238 239 /* 240 * 1024 is too much on some machines, scale max_jobs if 241 * we get a failure that looks like too large a shm segment 242 */ 243 do { 244 size_t size = max_jobs * sizeof(struct thread_data); 245 246 size += file_hash_size; 247 size += sizeof(unsigned int); 248 249 shm_id = shmget(0, size, IPC_CREAT | 0600); 250 if (shm_id != -1) 251 break; 252 if (errno != EINVAL && errno != ENOMEM) { 253 perror("shmget"); 254 break; 255 } 256 257 max_jobs >>= 1; 258 } while (max_jobs); 259 260 if (shm_id == -1) 261 return 1; 262 263 threads = shmat(shm_id, NULL, 0); 264 if (threads == (void *) -1) { 265 perror("shmat"); 266 return 1; 267 } 268 269 memset(threads, 0, max_jobs * sizeof(struct thread_data)); 270 hash = (void *) threads + max_jobs * sizeof(struct thread_data); 271 fio_debug_jobp = (void *) hash + file_hash_size; 272 *fio_debug_jobp = -1; 273 file_hash_init(hash); 274 275 flow_init(); 276 277 return 0; 278} 279 280/* 281 * Return a free job structure. 282 */ 283static struct thread_data *get_new_job(int global, struct thread_data *parent, 284 int preserve_eo) 285{ 286 struct thread_data *td; 287 288 if (global) 289 return &def_thread; 290 if (setup_thread_area()) { 291 log_err("error: failed to setup shm segment\n"); 292 return NULL; 293 } 294 if (thread_number >= max_jobs) { 295 log_err("error: maximum number of jobs (%d) reached.\n", 296 max_jobs); 297 return NULL; 298 } 299 300 td = &threads[thread_number++]; 301 *td = *parent; 302 303 td->io_ops = NULL; 304 if (!preserve_eo) 305 td->eo = NULL; 306 307 td->o.uid = td->o.gid = -1U; 308 309 dup_files(td, parent); 310 fio_options_mem_dupe(td); 311 312 profile_add_hooks(td); 313 314 td->thread_number = thread_number; 315 return td; 316} 317 318static void put_job(struct thread_data *td) 319{ 320 if (td == &def_thread) 321 return; 322 323 profile_td_exit(td); 324 flow_exit_job(td); 325 326 if (td->error) 327 log_info("fio: %s\n", td->verror); 328 329 fio_options_free(td); 330 if (td->io_ops) 331 free_ioengine(td); 332 333 memset(&threads[td->thread_number - 1], 0, sizeof(*td)); 334 thread_number--; 335} 336 337static int __setup_rate(struct thread_data *td, enum fio_ddir ddir) 338{ 339 unsigned int bs = td->o.min_bs[ddir]; 340 341 assert(ddir_rw(ddir)); 342 343 if (td->o.rate[ddir]) 344 td->rate_bps[ddir] = td->o.rate[ddir]; 345 else 346 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs; 347 348 if (!td->rate_bps[ddir]) { 349 log_err("rate lower than supported\n"); 350 return -1; 351 } 352 353 td->rate_pending_usleep[ddir] = 0; 354 return 0; 355} 356 357static int setup_rate(struct thread_data *td) 358{ 359 int ret = 0; 360 361 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ]) 362 ret = __setup_rate(td, DDIR_READ); 363 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE]) 364 ret |= __setup_rate(td, DDIR_WRITE); 365 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM]) 366 ret |= __setup_rate(td, DDIR_TRIM); 367 368 return ret; 369} 370 371static int fixed_block_size(struct thread_options *o) 372{ 373 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] && 374 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] && 375 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] && 376 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] && 377 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM]; 378} 379 380/* 381 * Lazy way of fixing up options that depend on each other. We could also 382 * define option callback handlers, but this is easier. 383 */ 384static int fixup_options(struct thread_data *td) 385{ 386 struct thread_options *o = &td->o; 387 int ret = 0; 388 389#ifndef FIO_HAVE_PSHARED_MUTEX 390 if (!o->use_thread) { 391 log_info("fio: this platform does not support process shared" 392 " mutexes, forcing use of threads. Use the 'thread'" 393 " option to get rid of this warning.\n"); 394 o->use_thread = 1; 395 ret = warnings_fatal; 396 } 397#endif 398 399 if (o->write_iolog_file && o->read_iolog_file) { 400 log_err("fio: read iolog overrides write_iolog\n"); 401 free(o->write_iolog_file); 402 o->write_iolog_file = NULL; 403 ret = warnings_fatal; 404 } 405 406 /* 407 * only really works with 1 file 408 */ 409 if (o->zone_size && o->open_files == 1) 410 o->zone_size = 0; 411 412 /* 413 * If zone_range isn't specified, backward compatibility dictates it 414 * should be made equal to zone_size. 415 */ 416 if (o->zone_size && !o->zone_range) 417 o->zone_range = o->zone_size; 418 419 /* 420 * Reads can do overwrites, we always need to pre-create the file 421 */ 422 if (td_read(td) || td_rw(td)) 423 o->overwrite = 1; 424 425 if (!o->min_bs[DDIR_READ]) 426 o->min_bs[DDIR_READ] = o->bs[DDIR_READ]; 427 if (!o->max_bs[DDIR_READ]) 428 o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; 429 if (!o->min_bs[DDIR_WRITE]) 430 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 431 if (!o->max_bs[DDIR_WRITE]) 432 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 433 if (!o->min_bs[DDIR_TRIM]) 434 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 435 if (!o->max_bs[DDIR_TRIM]) 436 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM]; 437 438 439 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); 440 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs); 441 442 /* 443 * For random IO, allow blockalign offset other than min_bs. 444 */ 445 if (!o->ba[DDIR_READ] || !td_random(td)) 446 o->ba[DDIR_READ] = o->min_bs[DDIR_READ]; 447 if (!o->ba[DDIR_WRITE] || !td_random(td)) 448 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE]; 449 if (!o->ba[DDIR_TRIM] || !td_random(td)) 450 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM]; 451 452 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] || 453 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] || 454 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) && 455 !o->norandommap) { 456 log_err("fio: Any use of blockalign= turns off randommap\n"); 457 o->norandommap = 1; 458 ret = warnings_fatal; 459 } 460 461 if (!o->file_size_high) 462 o->file_size_high = o->file_size_low; 463 464 if (o->norandommap && o->verify != VERIFY_NONE 465 && !fixed_block_size(o)) { 466 log_err("fio: norandommap given for variable block sizes, " 467 "verify disabled\n"); 468 o->verify = VERIFY_NONE; 469 ret = warnings_fatal; 470 } 471 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) 472 log_err("fio: bs_unaligned may not work with raw io\n"); 473 474 /* 475 * thinktime_spin must be less than thinktime 476 */ 477 if (o->thinktime_spin > o->thinktime) 478 o->thinktime_spin = o->thinktime; 479 480 /* 481 * The low water mark cannot be bigger than the iodepth 482 */ 483 if (o->iodepth_low > o->iodepth || !o->iodepth_low) { 484 /* 485 * syslet work around - if the workload is sequential, 486 * we want to let the queue drain all the way down to 487 * avoid seeking between async threads 488 */ 489 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) 490 o->iodepth_low = 1; 491 else 492 o->iodepth_low = o->iodepth; 493 } 494 495 /* 496 * If batch number isn't set, default to the same as iodepth 497 */ 498 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) 499 o->iodepth_batch = o->iodepth; 500 501 if (o->nr_files > td->files_index) 502 o->nr_files = td->files_index; 503 504 if (o->open_files > o->nr_files || !o->open_files) 505 o->open_files = o->nr_files; 506 507 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) && 508 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) || 509 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) && 510 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) { 511 log_err("fio: rate and rate_iops are mutually exclusive\n"); 512 ret = 1; 513 } 514 if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) || 515 (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) || 516 (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) || 517 (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) || 518 (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) || 519 (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) { 520 log_err("fio: minimum rate exceeds rate\n"); 521 ret = 1; 522 } 523 524 if (!o->timeout && o->time_based) { 525 log_err("fio: time_based requires a runtime/timeout setting\n"); 526 o->time_based = 0; 527 ret = warnings_fatal; 528 } 529 530 if (o->fill_device && !o->size) 531 o->size = -1ULL; 532 533 if (o->verify != VERIFY_NONE) { 534 if (td_write(td) && o->do_verify && o->numjobs > 1) { 535 log_info("Multiple writers may overwrite blocks that " 536 "belong to other jobs. This can cause " 537 "verification failures.\n"); 538 ret = warnings_fatal; 539 } 540 541 o->refill_buffers = 1; 542 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] && 543 !o->verify_interval) 544 o->verify_interval = o->min_bs[DDIR_WRITE]; 545 } 546 547 if (o->pre_read) { 548 o->invalidate_cache = 0; 549 if (td->io_ops->flags & FIO_PIPEIO) { 550 log_info("fio: cannot pre-read files with an IO engine" 551 " that isn't seekable. Pre-read disabled.\n"); 552 ret = warnings_fatal; 553 } 554 } 555 556#ifndef FIO_HAVE_FDATASYNC 557 if (o->fdatasync_blocks) { 558 log_info("fio: this platform does not support fdatasync()" 559 " falling back to using fsync(). Use the 'fsync'" 560 " option instead of 'fdatasync' to get rid of" 561 " this warning\n"); 562 o->fsync_blocks = o->fdatasync_blocks; 563 o->fdatasync_blocks = 0; 564 ret = warnings_fatal; 565 } 566#endif 567 568#ifdef WIN32 569 /* 570 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface, 571 * so fail if we're passed those flags 572 */ 573 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) { 574 log_err("fio: Windows does not support direct or non-buffered io with" 575 " the synchronous ioengines. Use the 'windowsaio' ioengine" 576 " with 'direct=1' and 'iodepth=1' instead.\n"); 577 ret = 1; 578 } 579#endif 580 581 /* 582 * For fully compressible data, just zero them at init time. 583 * It's faster than repeatedly filling it. 584 */ 585 if (td->o.compress_percentage == 100) { 586 td->o.zero_buffers = 1; 587 td->o.compress_percentage = 0; 588 } 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, 31, "%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[0], &td->bsrange_state); 646 os_random_seed(td->rand_seeds[1], &td->verify_state); 647 os_random_seed(td->rand_seeds[2], &td->rwmix_state); 648 649 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 650 os_random_seed(td->rand_seeds[3], &td->next_file_state); 651 652 os_random_seed(td->rand_seeds[5], &td->file_size_state); 653 os_random_seed(td->rand_seeds[6], &td->trim_state); 654 655 if (!td_random(td)) 656 return; 657 658 if (td->o.rand_repeatable) 659 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number; 660 661 os_random_seed(td->rand_seeds[4], &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[0]); 667 init_rand_seed(&td->__verify_state, td->rand_seeds[1]); 668 init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]); 669 670 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 671 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]); 672 673 init_rand_seed(&td->__file_size_state, td->rand_seeds[5]); 674 init_rand_seed(&td->__trim_state, td->rand_seeds[6]); 675 676 if (!td_random(td)) 677 return; 678 679 if (td->o.rand_repeatable) 680 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number; 681 682 init_rand_seed(&td->__random_state, td->rand_seeds[4]); 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[7]); 693} 694 695 696/* 697 * Initializes the ioengine configured for a job, if it has not been done so 698 * already. 699 */ 700int ioengine_load(struct thread_data *td) 701{ 702 const char *engine; 703 704 /* 705 * Engine has already been loaded. 706 */ 707 if (td->io_ops) 708 return 0; 709 710 engine = get_engine_name(td->o.ioengine); 711 td->io_ops = load_ioengine(td, engine); 712 if (!td->io_ops) { 713 log_err("fio: failed to load engine %s\n", engine); 714 return 1; 715 } 716 717 if (td->io_ops->option_struct_size && td->io_ops->options) { 718 /* 719 * In cases where td->eo is set, clone it for a child thread. 720 * This requires that the parent thread has the same ioengine, 721 * but that requirement must be enforced by the code which 722 * cloned the thread. 723 */ 724 void *origeo = td->eo; 725 /* 726 * Otherwise use the default thread options. 727 */ 728 if (!origeo && td != &def_thread && def_thread.eo && 729 def_thread.io_ops->options == td->io_ops->options) 730 origeo = def_thread.eo; 731 732 options_init(td->io_ops->options); 733 td->eo = malloc(td->io_ops->option_struct_size); 734 /* 735 * Use the default thread as an option template if this uses the 736 * same options structure and there are non-default options 737 * used. 738 */ 739 if (origeo) { 740 memcpy(td->eo, origeo, td->io_ops->option_struct_size); 741 options_mem_dupe(td->eo, td->io_ops->options); 742 } else { 743 memset(td->eo, 0, td->io_ops->option_struct_size); 744 fill_default_options(td->eo, td->io_ops->options); 745 } 746 *(struct thread_data **)td->eo = td; 747 } 748 749 return 0; 750} 751 752/* 753 * Adds a job to the list of things todo. Sanitizes the various options 754 * to make sure we don't have conflicts, and initializes various 755 * members of td. 756 */ 757static int add_job(struct thread_data *td, const char *jobname, int job_add_num) 758{ 759 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, 760 "randread", "randwrite", "randrw", 761 "trim", NULL, NULL, NULL, "randtrim" }; 762 unsigned int i; 763 char fname[PATH_MAX]; 764 int numjobs, file_alloced; 765 766 /* 767 * the def_thread is just for options, it's not a real job 768 */ 769 if (td == &def_thread) 770 return 0; 771 772 /* 773 * if we are just dumping the output command line, don't add the job 774 */ 775 if (dump_cmdline) { 776 put_job(td); 777 return 0; 778 } 779 780 if (profile_td_init(td)) 781 goto err; 782 783 if (ioengine_load(td)) 784 goto err; 785 786 if (td->o.use_thread) 787 nr_thread++; 788 else 789 nr_process++; 790 791 if (td->o.odirect) 792 td->io_ops->flags |= FIO_RAWIO; 793 794 file_alloced = 0; 795 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) { 796 file_alloced = 1; 797 798 if (td->o.nr_files == 1 && exists_and_not_file(jobname)) 799 add_file(td, jobname); 800 else { 801 for (i = 0; i < td->o.nr_files; i++) { 802 sprintf(fname, "%s.%d.%d", jobname, 803 td->thread_number, i); 804 add_file(td, fname); 805 } 806 } 807 } 808 809 if (fixup_options(td)) 810 goto err; 811 812 flow_init_job(td); 813 814 /* 815 * IO engines only need this for option callbacks, and the address may 816 * change in subprocesses. 817 */ 818 if (td->eo) 819 *(struct thread_data **)td->eo = NULL; 820 821 if (td->io_ops->flags & FIO_DISKLESSIO) { 822 struct fio_file *f; 823 824 for_each_file(td, f, i) 825 f->real_file_size = -1ULL; 826 } 827 828 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED); 829 830 td->ts.clat_percentiles = td->o.clat_percentiles; 831 if (td->o.overwrite_plist) 832 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); 833 else 834 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list)); 835 836 for (i = 0; i < DDIR_RWDIR_CNT; i++) { 837 td->ts.clat_stat[i].min_val = ULONG_MAX; 838 td->ts.slat_stat[i].min_val = ULONG_MAX; 839 td->ts.lat_stat[i].min_val = ULONG_MAX; 840 td->ts.bw_stat[i].min_val = ULONG_MAX; 841 } 842 td->ddir_seq_nr = td->o.ddir_seq_nr; 843 844 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) { 845 prev_group_jobs = 0; 846 groupid++; 847 } 848 849 td->groupid = groupid; 850 prev_group_jobs++; 851 852 if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) { 853 td_verror(td, errno, "init_random_state"); 854 goto err; 855 } 856 857 if (setup_rate(td)) 858 goto err; 859 860 if (td->o.write_lat_log) { 861 setup_log(&td->lat_log, td->o.log_avg_msec); 862 setup_log(&td->slat_log, td->o.log_avg_msec); 863 setup_log(&td->clat_log, td->o.log_avg_msec); 864 } 865 if (td->o.write_bw_log) 866 setup_log(&td->bw_log, td->o.log_avg_msec); 867 if (td->o.write_iops_log) 868 setup_log(&td->iops_log, td->o.log_avg_msec); 869 870 if (!td->o.name) 871 td->o.name = strdup(jobname); 872 873 if (!terse_output) { 874 if (!job_add_num) { 875 if (!strcmp(td->io_ops->name, "cpuio")) { 876 log_info("%s: ioengine=cpu, cpuload=%u," 877 " cpucycle=%u\n", td->o.name, 878 td->o.cpuload, 879 td->o.cpucycle); 880 } else { 881 char *c1, *c2, *c3, *c4, *c5, *c6; 882 883 c1 = to_kmg(td->o.min_bs[DDIR_READ]); 884 c2 = to_kmg(td->o.max_bs[DDIR_READ]); 885 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); 886 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); 887 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]); 888 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]); 889 890 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s," 891 " ioengine=%s, iodepth=%u\n", 892 td->o.name, td->groupid, 893 ddir_str[td->o.td_ddir], 894 c1, c2, c3, c4, c5, c6, 895 td->io_ops->name, 896 td->o.iodepth); 897 898 free(c1); 899 free(c2); 900 free(c3); 901 free(c4); 902 free(c5); 903 free(c6); 904 } 905 } else if (job_add_num == 1) 906 log_info("...\n"); 907 } 908 909 /* 910 * recurse add identical jobs, clear numjobs and stonewall options 911 * as they don't apply to sub-jobs 912 */ 913 numjobs = td->o.numjobs; 914 while (--numjobs) { 915 struct thread_data *td_new = get_new_job(0, td, 1); 916 917 if (!td_new) 918 goto err; 919 920 td_new->o.numjobs = 1; 921 td_new->o.stonewall = 0; 922 td_new->o.new_group = 0; 923 924 if (file_alloced) { 925 td_new->o.filename = NULL; 926 td_new->files_index = 0; 927 td_new->files_size = 0; 928 td_new->files = NULL; 929 } 930 931 job_add_num = numjobs - 1; 932 933 if (add_job(td_new, jobname, job_add_num)) 934 goto err; 935 } 936 937 return 0; 938err: 939 put_job(td); 940 return -1; 941} 942 943/* 944 * Parse as if 'o' was a command line 945 */ 946void add_job_opts(const char **o) 947{ 948 struct thread_data *td, *td_parent; 949 int i, in_global = 1; 950 char jobname[32]; 951 952 i = 0; 953 td_parent = td = NULL; 954 while (o[i]) { 955 if (!strncmp(o[i], "name", 4)) { 956 in_global = 0; 957 if (td) 958 add_job(td, jobname, 0); 959 td = NULL; 960 sprintf(jobname, "%s", o[i] + 5); 961 } 962 if (in_global && !td_parent) 963 td_parent = get_new_job(1, &def_thread, 0); 964 else if (!in_global && !td) { 965 if (!td_parent) 966 td_parent = &def_thread; 967 td = get_new_job(0, td_parent, 0); 968 } 969 if (in_global) 970 fio_options_parse(td_parent, (char **) &o[i], 1); 971 else 972 fio_options_parse(td, (char **) &o[i], 1); 973 i++; 974 } 975 976 if (td) 977 add_job(td, jobname, 0); 978} 979 980static int skip_this_section(const char *name) 981{ 982 int i; 983 984 if (!nr_job_sections) 985 return 0; 986 if (!strncmp(name, "global", 6)) 987 return 0; 988 989 for (i = 0; i < nr_job_sections; i++) 990 if (!strcmp(job_sections[i], name)) 991 return 0; 992 993 return 1; 994} 995 996static int is_empty_or_comment(char *line) 997{ 998 unsigned int i; 999 1000 for (i = 0; i < strlen(line); i++) { 1001 if (line[i] == ';') 1002 return 1; 1003 if (line[i] == '#') 1004 return 1; 1005 if (!isspace((int) line[i]) && !iscntrl((int) line[i])) 1006 return 0; 1007 } 1008 1009 return 1; 1010} 1011 1012/* 1013 * This is our [ini] type file parser. 1014 */ 1015int parse_jobs_ini(char *file, int is_buf, int stonewall_flag) 1016{ 1017 unsigned int global; 1018 struct thread_data *td; 1019 char *string, *name; 1020 FILE *f; 1021 char *p; 1022 int ret = 0, stonewall; 1023 int first_sect = 1; 1024 int skip_fgets = 0; 1025 int inside_skip = 0; 1026 char **opts; 1027 int i, alloc_opts, num_opts; 1028 1029 if (is_buf) 1030 f = NULL; 1031 else { 1032 if (!strcmp(file, "-")) 1033 f = stdin; 1034 else 1035 f = fopen(file, "r"); 1036 1037 if (!f) { 1038 perror("fopen job file"); 1039 return 1; 1040 } 1041 } 1042 1043 string = malloc(4096); 1044 1045 /* 1046 * it's really 256 + small bit, 280 should suffice 1047 */ 1048 name = malloc(280); 1049 memset(name, 0, 280); 1050 1051 alloc_opts = 8; 1052 opts = malloc(sizeof(char *) * alloc_opts); 1053 num_opts = 0; 1054 1055 stonewall = stonewall_flag; 1056 do { 1057 /* 1058 * if skip_fgets is set, we already have loaded a line we 1059 * haven't handled. 1060 */ 1061 if (!skip_fgets) { 1062 if (is_buf) 1063 p = strsep(&file, "\n"); 1064 else 1065 p = fgets(string, 4096, f); 1066 if (!p) 1067 break; 1068 } 1069 1070 skip_fgets = 0; 1071 strip_blank_front(&p); 1072 strip_blank_end(p); 1073 1074 if (is_empty_or_comment(p)) 1075 continue; 1076 if (sscanf(p, "[%255[^\n]]", name) != 1) { 1077 if (inside_skip) 1078 continue; 1079 log_err("fio: option <%s> outside of [] job section\n", 1080 p); 1081 break; 1082 } 1083 1084 name[strlen(name) - 1] = '\0'; 1085 1086 if (skip_this_section(name)) { 1087 inside_skip = 1; 1088 continue; 1089 } else 1090 inside_skip = 0; 1091 1092 global = !strncmp(name, "global", 6); 1093 1094 if (dump_cmdline) { 1095 if (first_sect) 1096 log_info("fio "); 1097 if (!global) 1098 log_info("--name=%s ", name); 1099 first_sect = 0; 1100 } 1101 1102 td = get_new_job(global, &def_thread, 0); 1103 if (!td) { 1104 ret = 1; 1105 break; 1106 } 1107 1108 /* 1109 * Seperate multiple job files by a stonewall 1110 */ 1111 if (!global && stonewall) { 1112 td->o.stonewall = stonewall; 1113 stonewall = 0; 1114 } 1115 1116 num_opts = 0; 1117 memset(opts, 0, alloc_opts * sizeof(char *)); 1118 1119 while (1) { 1120 if (is_buf) 1121 p = strsep(&file, "\n"); 1122 else 1123 p = fgets(string, 4096, f); 1124 if (!p) 1125 break; 1126 1127 if (is_empty_or_comment(p)) 1128 continue; 1129 1130 strip_blank_front(&p); 1131 1132 /* 1133 * new section, break out and make sure we don't 1134 * fgets() a new line at the top. 1135 */ 1136 if (p[0] == '[') { 1137 skip_fgets = 1; 1138 break; 1139 } 1140 1141 strip_blank_end(p); 1142 1143 if (num_opts == alloc_opts) { 1144 alloc_opts <<= 1; 1145 opts = realloc(opts, 1146 alloc_opts * sizeof(char *)); 1147 } 1148 1149 opts[num_opts] = strdup(p); 1150 num_opts++; 1151 } 1152 1153 ret = fio_options_parse(td, opts, num_opts); 1154 if (!ret) { 1155 if (dump_cmdline) 1156 for (i = 0; i < num_opts; i++) 1157 log_info("--%s ", opts[i]); 1158 1159 ret = add_job(td, name, 0); 1160 } else { 1161 log_err("fio: job %s dropped\n", name); 1162 put_job(td); 1163 } 1164 1165 for (i = 0; i < num_opts; i++) 1166 free(opts[i]); 1167 num_opts = 0; 1168 } while (!ret); 1169 1170 if (dump_cmdline) 1171 log_info("\n"); 1172 1173 i = 0; 1174 while (i < nr_job_sections) { 1175 free(job_sections[i]); 1176 i++; 1177 } 1178 1179 for (i = 0; i < num_opts; i++) 1180 free(opts[i]); 1181 1182 free(string); 1183 free(name); 1184 free(opts); 1185 if (!is_buf && f != stdin) 1186 fclose(f); 1187 return ret; 1188} 1189 1190static int fill_def_thread(void) 1191{ 1192 memset(&def_thread, 0, sizeof(def_thread)); 1193 1194 fio_getaffinity(getpid(), &def_thread.o.cpumask); 1195 def_thread.o.timeout = def_timeout; 1196 1197 /* 1198 * fill default options 1199 */ 1200 fio_fill_default_options(&def_thread); 1201 return 0; 1202} 1203 1204static void usage(const char *name) 1205{ 1206 printf("%s\n", fio_version_string); 1207 printf("%s [options] [job options] <job file(s)>\n", name); 1208 printf(" --debug=options\tEnable debug logging. May be one/more of:\n" 1209 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n" 1210 "\t\t\tdiskutil,job,mutex,profile,time,net\n"); 1211 printf(" --output\t\tWrite output to file\n"); 1212 printf(" --runtime\t\tRuntime in seconds\n"); 1213 printf(" --latency-log\t\tGenerate per-job latency logs\n"); 1214 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n"); 1215 printf(" --minimal\t\tMinimal (terse) output\n"); 1216 printf(" --version\t\tPrint version info and exit\n"); 1217 printf(" --terse-version=x\tSet terse version output format to 'x'\n"); 1218 printf(" --help\t\tPrint this page\n"); 1219 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of" 1220 " them\n"); 1221 printf(" --enghelp=engine\tPrint ioengine help, or list" 1222 " available ioengines\n"); 1223 printf(" --enghelp=engine,cmd\tPrint help for an ioengine" 1224 " cmd\n"); 1225 printf(" --showcmd\t\tTurn a job file into command line options\n"); 1226 printf(" --eta=when\t\tWhen ETA estimate should be printed\n"); 1227 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n"); 1228 printf(" --readonly\t\tTurn on safety read-only checks, preventing" 1229 " writes\n"); 1230 printf(" --section=name\tOnly run specified section in job file\n"); 1231 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb" 1232 " (def 1024)\n"); 1233 printf(" --warnings-fatal\tFio parser warnings are fatal\n"); 1234 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n"); 1235 printf(" --server=args\t\tStart a backend fio server\n"); 1236 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n"); 1237 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n"); 1238 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>"); 1239 printf("\n Jens Axboe <jaxboe@fusionio.com>\n"); 1240} 1241 1242#ifdef FIO_INC_DEBUG 1243struct debug_level debug_levels[] = { 1244 { .name = "process", .shift = FD_PROCESS, }, 1245 { .name = "file", .shift = FD_FILE, }, 1246 { .name = "io", .shift = FD_IO, }, 1247 { .name = "mem", .shift = FD_MEM, }, 1248 { .name = "blktrace", .shift = FD_BLKTRACE }, 1249 { .name = "verify", .shift = FD_VERIFY }, 1250 { .name = "random", .shift = FD_RANDOM }, 1251 { .name = "parse", .shift = FD_PARSE }, 1252 { .name = "diskutil", .shift = FD_DISKUTIL }, 1253 { .name = "job", .shift = FD_JOB }, 1254 { .name = "mutex", .shift = FD_MUTEX }, 1255 { .name = "profile", .shift = FD_PROFILE }, 1256 { .name = "time", .shift = FD_TIME }, 1257 { .name = "net", .shift = FD_NET }, 1258 { .name = NULL, }, 1259}; 1260 1261static int set_debug(const char *string) 1262{ 1263 struct debug_level *dl; 1264 char *p = (char *) string; 1265 char *opt; 1266 int i; 1267 1268 if (!strcmp(string, "?") || !strcmp(string, "help")) { 1269 log_info("fio: dumping debug options:"); 1270 for (i = 0; debug_levels[i].name; i++) { 1271 dl = &debug_levels[i]; 1272 log_info("%s,", dl->name); 1273 } 1274 log_info("all\n"); 1275 return 1; 1276 } 1277 1278 while ((opt = strsep(&p, ",")) != NULL) { 1279 int found = 0; 1280 1281 if (!strncmp(opt, "all", 3)) { 1282 log_info("fio: set all debug options\n"); 1283 fio_debug = ~0UL; 1284 continue; 1285 } 1286 1287 for (i = 0; debug_levels[i].name; i++) { 1288 dl = &debug_levels[i]; 1289 found = !strncmp(opt, dl->name, strlen(dl->name)); 1290 if (!found) 1291 continue; 1292 1293 if (dl->shift == FD_JOB) { 1294 opt = strchr(opt, ':'); 1295 if (!opt) { 1296 log_err("fio: missing job number\n"); 1297 break; 1298 } 1299 opt++; 1300 fio_debug_jobno = atoi(opt); 1301 log_info("fio: set debug jobno %d\n", 1302 fio_debug_jobno); 1303 } else { 1304 log_info("fio: set debug option %s\n", opt); 1305 fio_debug |= (1UL << dl->shift); 1306 } 1307 break; 1308 } 1309 1310 if (!found) 1311 log_err("fio: debug mask %s not found\n", opt); 1312 } 1313 return 0; 1314} 1315#else 1316static int set_debug(const char *string) 1317{ 1318 log_err("fio: debug tracing not included in build\n"); 1319 return 1; 1320} 1321#endif 1322 1323static void fio_options_fill_optstring(void) 1324{ 1325 char *ostr = cmd_optstr; 1326 int i, c; 1327 1328 c = i = 0; 1329 while (l_opts[i].name) { 1330 ostr[c++] = l_opts[i].val; 1331 if (l_opts[i].has_arg == required_argument) 1332 ostr[c++] = ':'; 1333 else if (l_opts[i].has_arg == optional_argument) { 1334 ostr[c++] = ':'; 1335 ostr[c++] = ':'; 1336 } 1337 i++; 1338 } 1339 ostr[c] = '\0'; 1340} 1341 1342static int client_flag_set(char c) 1343{ 1344 int i; 1345 1346 i = 0; 1347 while (l_opts[i].name) { 1348 int val = l_opts[i].val; 1349 1350 if (c == (val & 0xff)) 1351 return (val & FIO_CLIENT_FLAG); 1352 1353 i++; 1354 } 1355 1356 return 0; 1357} 1358 1359void parse_cmd_client(void *client, char *opt) 1360{ 1361 fio_client_add_cmd_option(client, opt); 1362} 1363 1364int parse_cmd_line(int argc, char *argv[]) 1365{ 1366 struct thread_data *td = NULL; 1367 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; 1368 char *ostr = cmd_optstr; 1369 void *pid_file = NULL; 1370 void *cur_client = NULL; 1371 int backend = 0; 1372 1373 /* 1374 * Reset optind handling, since we may call this multiple times 1375 * for the backend. 1376 */ 1377 optind = 1; 1378 1379 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) { 1380 did_arg = 1; 1381 1382 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) { 1383 parse_cmd_client(cur_client, argv[optind - 1]); 1384 c &= ~FIO_CLIENT_FLAG; 1385 } 1386 1387 switch (c) { 1388 case 'a': 1389 smalloc_pool_size = atoi(optarg); 1390 break; 1391 case 't': 1392 def_timeout = atoi(optarg); 1393 break; 1394 case 'l': 1395 write_lat_log = 1; 1396 break; 1397 case 'b': 1398 write_bw_log = 1; 1399 break; 1400 case 'o': 1401 f_out = fopen(optarg, "w+"); 1402 if (!f_out) { 1403 perror("fopen output"); 1404 exit(1); 1405 } 1406 f_err = f_out; 1407 break; 1408 case 'm': 1409 terse_output = 1; 1410 break; 1411 case 'h': 1412 if (!cur_client) { 1413 usage(argv[0]); 1414 do_exit++; 1415 } 1416 break; 1417 case 'c': 1418 if (!cur_client) { 1419 fio_show_option_help(optarg); 1420 do_exit++; 1421 } 1422 break; 1423 case 'i': 1424 if (!cur_client) { 1425 fio_show_ioengine_help(optarg); 1426 do_exit++; 1427 } 1428 break; 1429 case 's': 1430 dump_cmdline = 1; 1431 break; 1432 case 'r': 1433 read_only = 1; 1434 break; 1435 case 'v': 1436 if (!cur_client) { 1437 log_info("%s\n", fio_version_string); 1438 do_exit++; 1439 } 1440 break; 1441 case 'V': 1442 terse_version = atoi(optarg); 1443 if (!(terse_version == 2 || terse_version == 3) || 1444 (terse_version == 4)) { 1445 log_err("fio: bad terse version format\n"); 1446 exit_val = 1; 1447 do_exit++; 1448 } 1449 break; 1450 case 'e': 1451 if (!strcmp("always", optarg)) 1452 eta_print = FIO_ETA_ALWAYS; 1453 else if (!strcmp("never", optarg)) 1454 eta_print = FIO_ETA_NEVER; 1455 break; 1456 case 'd': 1457 if (set_debug(optarg)) 1458 do_exit++; 1459 break; 1460 case 'x': { 1461 size_t new_size; 1462 1463 if (!strcmp(optarg, "global")) { 1464 log_err("fio: can't use global as only " 1465 "section\n"); 1466 do_exit++; 1467 exit_val = 1; 1468 break; 1469 } 1470 new_size = (nr_job_sections + 1) * sizeof(char *); 1471 job_sections = realloc(job_sections, new_size); 1472 job_sections[nr_job_sections] = strdup(optarg); 1473 nr_job_sections++; 1474 break; 1475 } 1476 case 'p': 1477 exec_profile = strdup(optarg); 1478 break; 1479 case FIO_GETOPT_JOB: { 1480 const char *opt = l_opts[lidx].name; 1481 char *val = optarg; 1482 1483 if (!strncmp(opt, "name", 4) && td) { 1484 ret = add_job(td, td->o.name ?: "fio", 0); 1485 if (ret) 1486 return 0; 1487 td = NULL; 1488 } 1489 if (!td) { 1490 int is_section = !strncmp(opt, "name", 4); 1491 int global = 0; 1492 1493 if (!is_section || !strncmp(val, "global", 6)) 1494 global = 1; 1495 1496 if (is_section && skip_this_section(val)) 1497 continue; 1498 1499 td = get_new_job(global, &def_thread, 1); 1500 if (!td || ioengine_load(td)) 1501 return 0; 1502 fio_options_set_ioengine_opts(l_opts, td); 1503 } 1504 1505 ret = fio_cmd_option_parse(td, opt, val); 1506 1507 if (!ret && !strcmp(opt, "ioengine")) { 1508 free_ioengine(td); 1509 if (ioengine_load(td)) 1510 return 0; 1511 fio_options_set_ioengine_opts(l_opts, td); 1512 } 1513 break; 1514 } 1515 case FIO_GETOPT_IOENGINE: { 1516 const char *opt = l_opts[lidx].name; 1517 char *val = optarg; 1518 opt = l_opts[lidx].name; 1519 val = optarg; 1520 ret = fio_cmd_ioengine_option_parse(td, opt, val); 1521 break; 1522 } 1523 case 'w': 1524 warnings_fatal = 1; 1525 break; 1526 case 'j': 1527 max_jobs = atoi(optarg); 1528 if (!max_jobs || max_jobs > REAL_MAX_JOBS) { 1529 log_err("fio: invalid max jobs: %d\n", max_jobs); 1530 do_exit++; 1531 exit_val = 1; 1532 } 1533 break; 1534 case 'S': 1535 if (nr_clients) { 1536 log_err("fio: can't be both client and server\n"); 1537 do_exit++; 1538 exit_val = 1; 1539 break; 1540 } 1541 if (optarg) 1542 fio_server_set_arg(optarg); 1543 is_backend = 1; 1544 backend = 1; 1545 break; 1546 case 'D': 1547 pid_file = strdup(optarg); 1548 break; 1549 case 'C': 1550 if (is_backend) { 1551 log_err("fio: can't be both client and server\n"); 1552 do_exit++; 1553 exit_val = 1; 1554 break; 1555 } 1556 if (fio_client_add(optarg, &cur_client)) { 1557 log_err("fio: failed adding client %s\n", optarg); 1558 do_exit++; 1559 exit_val = 1; 1560 break; 1561 } 1562 /* 1563 * If the next argument exists and isn't an option, 1564 * assume it's a job file for this client only. 1565 */ 1566 while (optind < argc) { 1567 if (!strncmp(argv[optind], "--", 2) || 1568 !strncmp(argv[optind], "-", 1)) 1569 break; 1570 1571 fio_client_add_ini_file(cur_client, argv[optind]); 1572 optind++; 1573 } 1574 break; 1575 default: 1576 do_exit++; 1577 exit_val = 1; 1578 break; 1579 } 1580 if (do_exit) 1581 break; 1582 } 1583 1584 if (do_exit) { 1585 if (exit_val && !(is_backend || nr_clients)) 1586 exit(exit_val); 1587 } 1588 1589 if (nr_clients && fio_clients_connect()) { 1590 do_exit++; 1591 exit_val = 1; 1592 return -1; 1593 } 1594 1595 if (is_backend && backend) 1596 return fio_start_server(pid_file); 1597 1598 if (td) { 1599 if (!ret) 1600 ret = add_job(td, td->o.name ?: "fio", 0); 1601 } 1602 1603 while (!ret && optind < argc) { 1604 ini_idx++; 1605 ini_file = realloc(ini_file, ini_idx * sizeof(char *)); 1606 ini_file[ini_idx - 1] = strdup(argv[optind]); 1607 optind++; 1608 } 1609 1610 return ini_idx; 1611} 1612 1613int parse_options(int argc, char *argv[]) 1614{ 1615 int job_files, i; 1616 1617 f_out = stdout; 1618 f_err = stderr; 1619 1620 fio_options_fill_optstring(); 1621 fio_options_dup_and_init(l_opts); 1622 1623 atexit(free_shm); 1624 1625 if (fill_def_thread()) 1626 return 1; 1627 1628 job_files = parse_cmd_line(argc, argv); 1629 1630 if (job_files > 0) { 1631 for (i = 0; i < job_files; i++) { 1632 if (fill_def_thread()) 1633 return 1; 1634 if (nr_clients) { 1635 if (fio_clients_send_ini(ini_file[i])) 1636 return 1; 1637 free(ini_file[i]); 1638 } else if (!is_backend) { 1639 if (parse_jobs_ini(ini_file[i], 0, i)) 1640 return 1; 1641 free(ini_file[i]); 1642 } 1643 } 1644 } else if (nr_clients) { 1645 if (fill_def_thread()) 1646 return 1; 1647 if (fio_clients_send_ini(NULL)) 1648 return 1; 1649 } 1650 1651 free(ini_file); 1652 fio_options_free(&def_thread); 1653 1654 if (!thread_number) { 1655 if (dump_cmdline) 1656 return 0; 1657 if (exec_profile) 1658 return 0; 1659 if (is_backend || nr_clients) 1660 return 0; 1661 if (did_arg) 1662 return 0; 1663 1664 log_err("No jobs(s) defined\n\n"); 1665 1666 if (!did_arg) { 1667 usage(argv[0]); 1668 return 1; 1669 } 1670 1671 return 0; 1672 } 1673 1674 if (def_thread.o.gtod_offload) { 1675 fio_gtod_init(); 1676 fio_gtod_offload = 1; 1677 fio_gtod_cpu = def_thread.o.gtod_cpu; 1678 } 1679 1680 if (!terse_output) 1681 log_info("%s\n", fio_version_string); 1682 1683 return 0; 1684} 1685