init.c revision b7c6302da8b30f221310dd6c917136229ee5e688
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 <getopt.h> 12#include <sys/ipc.h> 13#include <sys/shm.h> 14#include <sys/types.h> 15#include <sys/stat.h> 16 17#include "fio.h" 18#include "parse.h" 19#include "smalloc.h" 20#include "filehash.h" 21 22static char fio_version_string[] = "fio 1.21"; 23 24#define FIO_RANDSEED (0xb1899bedUL) 25 26static char **ini_file; 27static int max_jobs = MAX_JOBS; 28static int dump_cmdline; 29 30struct thread_data def_thread; 31struct thread_data *threads = NULL; 32 33int exitall_on_terminate = 0; 34int terse_output = 0; 35int eta_print; 36unsigned long long mlock_size = 0; 37FILE *f_out = NULL; 38FILE *f_err = NULL; 39char *job_section = NULL; 40 41int write_bw_log = 0; 42int read_only = 0; 43 44static int def_timeout; 45static int write_lat_log; 46 47static int prev_group_jobs; 48 49unsigned long fio_debug = 0; 50unsigned int fio_debug_jobno = -1; 51unsigned int *fio_debug_jobp = NULL; 52 53/* 54 * Command line options. These will contain the above, plus a few 55 * extra that only pertain to fio itself and not jobs. 56 */ 57static struct option l_opts[FIO_NR_OPTIONS] = { 58 { 59 .name = "output", 60 .has_arg = required_argument, 61 .val = 'o', 62 }, 63 { 64 .name = "timeout", 65 .has_arg = required_argument, 66 .val = 't', 67 }, 68 { 69 .name = "latency-log", 70 .has_arg = required_argument, 71 .val = 'l', 72 }, 73 { 74 .name = "bandwidth-log", 75 .has_arg = required_argument, 76 .val = 'b', 77 }, 78 { 79 .name = "minimal", 80 .has_arg = optional_argument, 81 .val = 'm', 82 }, 83 { 84 .name = "version", 85 .has_arg = no_argument, 86 .val = 'v', 87 }, 88 { 89 .name = "help", 90 .has_arg = no_argument, 91 .val = 'h', 92 }, 93 { 94 .name = "cmdhelp", 95 .has_arg = optional_argument, 96 .val = 'c', 97 }, 98 { 99 .name = "showcmd", 100 .has_arg = no_argument, 101 .val = 's', 102 }, 103 { 104 .name = "readonly", 105 .has_arg = no_argument, 106 .val = 'r', 107 }, 108 { 109 .name = "eta", 110 .has_arg = required_argument, 111 .val = 'e', 112 }, 113 { 114 .name = "debug", 115 .has_arg = required_argument, 116 .val = 'd', 117 }, 118 { 119 .name = "section", 120 .has_arg = required_argument, 121 .val = 'x', 122 }, 123 { 124 .name = "alloc-size", 125 .has_arg = required_argument, 126 .val = 'a', 127 }, 128 { 129 .name = NULL, 130 }, 131}; 132 133FILE *get_f_out() 134{ 135 return f_out; 136} 137 138FILE *get_f_err() 139{ 140 return f_err; 141} 142 143/* 144 * Return a free job structure. 145 */ 146static struct thread_data *get_new_job(int global, struct thread_data *parent) 147{ 148 struct thread_data *td; 149 150 if (global) 151 return &def_thread; 152 if (thread_number >= max_jobs) 153 return NULL; 154 155 td = &threads[thread_number++]; 156 *td = *parent; 157 158 dup_files(td, parent); 159 options_mem_dupe(td); 160 161 td->thread_number = thread_number; 162 return td; 163} 164 165static void put_job(struct thread_data *td) 166{ 167 if (td == &def_thread) 168 return; 169 170 if (td->error) 171 log_info("fio: %s\n", td->verror); 172 173 memset(&threads[td->thread_number - 1], 0, sizeof(*td)); 174 thread_number--; 175} 176 177static int setup_rate(struct thread_data *td) 178{ 179 unsigned long nr_reads_per_msec; 180 unsigned long long rate; 181 unsigned int bs; 182 183 if (!td->o.rate && !td->o.rate_iops) 184 return 0; 185 186 if (td_rw(td)) 187 bs = td->o.rw_min_bs; 188 else if (td_read(td)) 189 bs = td->o.min_bs[DDIR_READ]; 190 else 191 bs = td->o.min_bs[DDIR_WRITE]; 192 193 if (td->o.rate) { 194 rate = td->o.rate; 195 nr_reads_per_msec = (rate * 1024 * 1000LL) / bs; 196 } else 197 nr_reads_per_msec = td->o.rate_iops * 1000UL; 198 199 if (!nr_reads_per_msec) { 200 log_err("rate lower than supported\n"); 201 return -1; 202 } 203 204 td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec; 205 td->rate_pending_usleep = 0; 206 return 0; 207} 208 209/* 210 * Lazy way of fixing up options that depend on each other. We could also 211 * define option callback handlers, but this is easier. 212 */ 213static int fixup_options(struct thread_data *td) 214{ 215 struct thread_options *o = &td->o; 216 217 if (read_only && td_write(td)) { 218 log_err("fio: job <%s> has write bit set, but fio is in" 219 " read-only mode\n", td->o.name); 220 return 1; 221 } 222 223 if (o->write_iolog_file && o->read_iolog_file) { 224 log_err("fio: read iolog overrides write_iolog\n"); 225 free(o->write_iolog_file); 226 o->write_iolog_file = NULL; 227 } 228 229 /* 230 * only really works for sequential io for now, and with 1 file 231 */ 232 if (o->zone_size && td_random(td) && o->open_files == 1) 233 o->zone_size = 0; 234 235 /* 236 * Reads can do overwrites, we always need to pre-create the file 237 */ 238 if (td_read(td) || td_rw(td)) 239 o->overwrite = 1; 240 241 if (!o->min_bs[DDIR_READ]) 242 o->min_bs[DDIR_READ] = o->bs[DDIR_READ]; 243 if (!o->max_bs[DDIR_READ]) 244 o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; 245 if (!o->min_bs[DDIR_WRITE]) 246 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 247 if (!o->max_bs[DDIR_WRITE]) 248 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; 249 250 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); 251 252 if (!o->file_size_high) 253 o->file_size_high = o->file_size_low; 254 255 if (o->norandommap && o->verify != VERIFY_NONE) { 256 log_err("fio: norandommap given, verify disabled\n"); 257 o->verify = VERIFY_NONE; 258 } 259 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) 260 log_err("fio: bs_unaligned may not work with raw io\n"); 261 262 /* 263 * thinktime_spin must be less than thinktime 264 */ 265 if (o->thinktime_spin > o->thinktime) 266 o->thinktime_spin = o->thinktime; 267 268 /* 269 * The low water mark cannot be bigger than the iodepth 270 */ 271 if (o->iodepth_low > o->iodepth || !o->iodepth_low) { 272 /* 273 * syslet work around - if the workload is sequential, 274 * we want to let the queue drain all the way down to 275 * avoid seeking between async threads 276 */ 277 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) 278 o->iodepth_low = 1; 279 else 280 o->iodepth_low = o->iodepth; 281 } 282 283 /* 284 * If batch number isn't set, default to the same as iodepth 285 */ 286 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) 287 o->iodepth_batch = o->iodepth; 288 289 if (o->nr_files > td->files_index) 290 o->nr_files = td->files_index; 291 292 if (o->open_files > o->nr_files || !o->open_files) 293 o->open_files = o->nr_files; 294 295 if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) { 296 log_err("fio: rate and rate_iops are mutually exclusive\n"); 297 return 1; 298 } 299 if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) { 300 log_err("fio: minimum rate exceeds rate\n"); 301 return 1; 302 } 303 304 if (!o->timeout && o->time_based) { 305 log_err("fio: time_based requires a runtime/timeout setting\n"); 306 o->time_based = 0; 307 } 308 309 if (o->fill_device && !o->size) 310 o->size = -1ULL; 311 312 if (td_rw(td) && td->o.verify != VERIFY_NONE) 313 log_info("fio: mixed read/write workload with verify. May not " 314 "work as expected, unless you pre-populated the file\n"); 315 316 if (td->o.verify != VERIFY_NONE) 317 td->o.refill_buffers = 1; 318 319 return 0; 320} 321 322/* 323 * This function leaks the buffer 324 */ 325static char *to_kmg(unsigned int val) 326{ 327 char *buf = malloc(32); 328 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; 329 char *p = post; 330 331 do { 332 if (val & 1023) 333 break; 334 335 val >>= 10; 336 p++; 337 } while (*p); 338 339 snprintf(buf, 31, "%u%c", val, *p); 340 return buf; 341} 342 343/* External engines are specified by "external:name.o") */ 344static const char *get_engine_name(const char *str) 345{ 346 char *p = strstr(str, ":"); 347 348 if (!p) 349 return str; 350 351 p++; 352 strip_blank_front(&p); 353 strip_blank_end(p); 354 return p; 355} 356 357static int exists_and_not_file(const char *filename) 358{ 359 struct stat sb; 360 361 if (lstat(filename, &sb) == -1) 362 return 0; 363 364 if (S_ISREG(sb.st_mode)) 365 return 0; 366 367 return 1; 368} 369 370/* 371 * Initialize the various random states we need (random io, block size ranges, 372 * read/write mix, etc). 373 */ 374static int init_random_state(struct thread_data *td) 375{ 376 unsigned long seeds[6]; 377 int fd; 378 379 fd = open("/dev/urandom", O_RDONLY); 380 if (fd == -1) { 381 td_verror(td, errno, "open"); 382 return 1; 383 } 384 385 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) { 386 td_verror(td, EIO, "read"); 387 close(fd); 388 return 1; 389 } 390 391 close(fd); 392 393 os_random_seed(seeds[0], &td->bsrange_state); 394 os_random_seed(seeds[1], &td->verify_state); 395 os_random_seed(seeds[2], &td->rwmix_state); 396 397 if (td->o.file_service_type == FIO_FSERVICE_RANDOM) 398 os_random_seed(seeds[3], &td->next_file_state); 399 400 os_random_seed(seeds[5], &td->file_size_state); 401 402 if (!td_random(td)) 403 return 0; 404 405 if (td->o.rand_repeatable) 406 seeds[4] = FIO_RANDSEED * td->thread_number; 407 408 os_random_seed(seeds[4], &td->random_state); 409 return 0; 410} 411 412/* 413 * Adds a job to the list of things todo. Sanitizes the various options 414 * to make sure we don't have conflicts, and initializes various 415 * members of td. 416 */ 417static int add_job(struct thread_data *td, const char *jobname, int job_add_num) 418{ 419 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, 420 "randread", "randwrite", "randrw" }; 421 unsigned int i; 422 const char *engine; 423 char fname[PATH_MAX]; 424 int numjobs, file_alloced; 425 426 /* 427 * the def_thread is just for options, it's not a real job 428 */ 429 if (td == &def_thread) 430 return 0; 431 432 /* 433 * if we are just dumping the output command line, don't add the job 434 */ 435 if (dump_cmdline) { 436 put_job(td); 437 return 0; 438 } 439 440 engine = get_engine_name(td->o.ioengine); 441 td->io_ops = load_ioengine(td, engine); 442 if (!td->io_ops) { 443 log_err("fio: failed to load engine %s\n", engine); 444 goto err; 445 } 446 447 if (td->o.use_thread) 448 nr_thread++; 449 else 450 nr_process++; 451 452 if (td->o.odirect) 453 td->io_ops->flags |= FIO_RAWIO; 454 455 file_alloced = 0; 456 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) { 457 file_alloced = 1; 458 459 if (td->o.nr_files == 1 && exists_and_not_file(jobname)) 460 add_file(td, jobname); 461 else { 462 for (i = 0; i < td->o.nr_files; i++) { 463 sprintf(fname, "%s.%d.%d", jobname, 464 td->thread_number, i); 465 add_file(td, fname); 466 } 467 } 468 } 469 470 if (fixup_options(td)) 471 goto err; 472 473 if (td->io_ops->flags & FIO_DISKLESSIO) { 474 struct fio_file *f; 475 476 for_each_file(td, f, i) 477 f->real_file_size = -1ULL; 478 } 479 480 td->mutex = fio_mutex_init(0); 481 482 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX; 483 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX; 484 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX; 485 td->ddir_nr = td->o.ddir_nr; 486 487 if ((td->o.stonewall || td->o.numjobs > 1 || td->o.new_group) 488 && prev_group_jobs) { 489 prev_group_jobs = 0; 490 groupid++; 491 } 492 493 td->groupid = groupid; 494 prev_group_jobs++; 495 496 if (init_random_state(td)) 497 goto err; 498 499 if (setup_rate(td)) 500 goto err; 501 502 if (td->o.write_lat_log) { 503 setup_log(&td->ts.slat_log); 504 setup_log(&td->ts.clat_log); 505 } 506 if (td->o.write_bw_log) 507 setup_log(&td->ts.bw_log); 508 509 if (!td->o.name) 510 td->o.name = strdup(jobname); 511 512 if (!terse_output) { 513 if (!job_add_num) { 514 if (!strcmp(td->io_ops->name, "cpuio")) { 515 log_info("%s: ioengine=cpu, cpuload=%u," 516 " cpucycle=%u\n", td->o.name, 517 td->o.cpuload, 518 td->o.cpucycle); 519 } else { 520 char *c1, *c2, *c3, *c4; 521 522 c1 = to_kmg(td->o.min_bs[DDIR_READ]); 523 c2 = to_kmg(td->o.max_bs[DDIR_READ]); 524 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); 525 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); 526 527 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s," 528 " ioengine=%s, iodepth=%u\n", 529 td->o.name, td->groupid, 530 ddir_str[td->o.td_ddir], 531 c1, c2, c3, c4, 532 td->io_ops->name, 533 td->o.iodepth); 534 535 free(c1); 536 free(c2); 537 free(c3); 538 free(c4); 539 } 540 } else if (job_add_num == 1) 541 log_info("...\n"); 542 } 543 544 /* 545 * recurse add identical jobs, clear numjobs and stonewall options 546 * as they don't apply to sub-jobs 547 */ 548 numjobs = td->o.numjobs; 549 while (--numjobs) { 550 struct thread_data *td_new = get_new_job(0, td); 551 552 if (!td_new) 553 goto err; 554 555 td_new->o.numjobs = 1; 556 td_new->o.stonewall = 0; 557 td_new->o.new_group = 0; 558 559 if (file_alloced) { 560 td_new->o.filename = NULL; 561 td_new->files_index = 0; 562 td_new->files = NULL; 563 } 564 565 job_add_num = numjobs - 1; 566 567 if (add_job(td_new, jobname, job_add_num)) 568 goto err; 569 } 570 571 return 0; 572err: 573 put_job(td); 574 return -1; 575} 576 577static int skip_this_section(const char *name) 578{ 579 if (!job_section) 580 return 0; 581 if (!strncmp(name, "global", 6)) 582 return 0; 583 584 return strncmp(job_section, name, strlen(job_section)); 585} 586 587static int is_empty_or_comment(char *line) 588{ 589 unsigned int i; 590 591 for (i = 0; i < strlen(line); i++) { 592 if (line[i] == ';') 593 return 1; 594 if (line[i] == '#') 595 return 1; 596 if (!isspace(line[i]) && !iscntrl(line[i])) 597 return 0; 598 } 599 600 return 1; 601} 602 603/* 604 * This is our [ini] type file parser. 605 */ 606static int parse_jobs_ini(char *file, int stonewall_flag) 607{ 608 unsigned int global; 609 struct thread_data *td; 610 char *string, *name; 611 FILE *f; 612 char *p; 613 int ret = 0, stonewall; 614 int first_sect = 1; 615 int skip_fgets = 0; 616 int inside_skip = 0; 617 char **opts; 618 int i, alloc_opts, num_opts; 619 620 if (!strcmp(file, "-")) 621 f = stdin; 622 else 623 f = fopen(file, "r"); 624 625 if (!f) { 626 perror("fopen job file"); 627 return 1; 628 } 629 630 string = malloc(4096); 631 632 /* 633 * it's really 256 + small bit, 280 should suffice 634 */ 635 name = malloc(280); 636 memset(name, 0, 280); 637 638 alloc_opts = 8; 639 opts = malloc(sizeof(char *) * alloc_opts); 640 num_opts = 0; 641 642 stonewall = stonewall_flag; 643 do { 644 /* 645 * if skip_fgets is set, we already have loaded a line we 646 * haven't handled. 647 */ 648 if (!skip_fgets) { 649 p = fgets(string, 4095, f); 650 if (!p) 651 break; 652 } 653 654 skip_fgets = 0; 655 strip_blank_front(&p); 656 strip_blank_end(p); 657 658 if (is_empty_or_comment(p)) 659 continue; 660 if (sscanf(p, "[%255s]", name) != 1) { 661 if (inside_skip) 662 continue; 663 log_err("fio: option <%s> outside of [] job section\n", 664 p); 665 break; 666 } 667 668 if (skip_this_section(name)) { 669 inside_skip = 1; 670 continue; 671 } else 672 inside_skip = 0; 673 674 global = !strncmp(name, "global", 6); 675 676 name[strlen(name) - 1] = '\0'; 677 678 if (dump_cmdline) { 679 if (first_sect) 680 log_info("fio "); 681 if (!global) 682 log_info("--name=%s ", name); 683 first_sect = 0; 684 } 685 686 td = get_new_job(global, &def_thread); 687 if (!td) { 688 ret = 1; 689 break; 690 } 691 692 /* 693 * Seperate multiple job files by a stonewall 694 */ 695 if (!global && stonewall) { 696 td->o.stonewall = stonewall; 697 stonewall = 0; 698 } 699 700 num_opts = 0; 701 memset(opts, 0, alloc_opts * sizeof(char *)); 702 703 while ((p = fgets(string, 4096, f)) != NULL) { 704 if (is_empty_or_comment(p)) 705 continue; 706 707 strip_blank_front(&p); 708 709 /* 710 * new section, break out and make sure we don't 711 * fgets() a new line at the top. 712 */ 713 if (p[0] == '[') { 714 skip_fgets = 1; 715 break; 716 } 717 718 strip_blank_end(p); 719 720 if (num_opts == alloc_opts) { 721 alloc_opts <<= 1; 722 opts = realloc(opts, 723 alloc_opts * sizeof(char *)); 724 } 725 726 opts[num_opts] = strdup(p); 727 num_opts++; 728 } 729 730 ret = fio_options_parse(td, opts, num_opts); 731 if (!ret) { 732 if (dump_cmdline) 733 for (i = 0; i < num_opts; i++) 734 log_info("--%s ", opts[i]); 735 736 ret = add_job(td, name, 0); 737 } else { 738 log_err("fio: job %s dropped\n", name); 739 put_job(td); 740 } 741 742 for (i = 0; i < num_opts; i++) 743 free(opts[i]); 744 num_opts = 0; 745 } while (!ret); 746 747 if (dump_cmdline) 748 log_info("\n"); 749 750 for (i = 0; i < num_opts; i++) 751 free(opts[i]); 752 753 free(string); 754 free(name); 755 free(opts); 756 if (f != stdin) 757 fclose(f); 758 return ret; 759} 760 761static int fill_def_thread(void) 762{ 763 memset(&def_thread, 0, sizeof(def_thread)); 764 765 fio_getaffinity(getpid(), &def_thread.o.cpumask); 766 767 /* 768 * fill default options 769 */ 770 fio_fill_default_options(&def_thread); 771 772 def_thread.o.timeout = def_timeout; 773 def_thread.o.write_bw_log = write_bw_log; 774 def_thread.o.write_lat_log = write_lat_log; 775 776 return 0; 777} 778 779static void free_shm(void) 780{ 781 struct shmid_ds sbuf; 782 783 if (threads) { 784 void *tp = threads; 785 786 threads = NULL; 787 file_hash_exit(); 788 fio_debug_jobp = NULL; 789 shmdt(tp); 790 shmctl(shm_id, IPC_RMID, &sbuf); 791 } 792 793 scleanup(); 794} 795 796/* 797 * The thread area is shared between the main process and the job 798 * threads/processes. So setup a shared memory segment that will hold 799 * all the job info. We use the end of the region for keeping track of 800 * open files across jobs, for file sharing. 801 */ 802static int setup_thread_area(void) 803{ 804 void *hash; 805 806 /* 807 * 1024 is too much on some machines, scale max_jobs if 808 * we get a failure that looks like too large a shm segment 809 */ 810 do { 811 size_t size = max_jobs * sizeof(struct thread_data); 812 813 size += file_hash_size; 814 size += sizeof(unsigned int); 815 816 shm_id = shmget(0, size, IPC_CREAT | 0600); 817 if (shm_id != -1) 818 break; 819 if (errno != EINVAL) { 820 perror("shmget"); 821 break; 822 } 823 824 max_jobs >>= 1; 825 } while (max_jobs); 826 827 if (shm_id == -1) 828 return 1; 829 830 threads = shmat(shm_id, NULL, 0); 831 if (threads == (void *) -1) { 832 perror("shmat"); 833 return 1; 834 } 835 836 memset(threads, 0, max_jobs * sizeof(struct thread_data)); 837 hash = (void *) threads + max_jobs * sizeof(struct thread_data); 838 fio_debug_jobp = (void *) hash + file_hash_size; 839 *fio_debug_jobp = -1; 840 file_hash_init(hash); 841 atexit(free_shm); 842 return 0; 843} 844 845static void usage(const char *name) 846{ 847 printf("%s\n", fio_version_string); 848 printf("%s [options] [job options] <job file(s)>\n", name); 849 printf("\t--debug=options\tEnable debug logging\n"); 850 printf("\t--output\tWrite output to file\n"); 851 printf("\t--timeout\tRuntime in seconds\n"); 852 printf("\t--latency-log\tGenerate per-job latency logs\n"); 853 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n"); 854 printf("\t--minimal\tMinimal (terse) output\n"); 855 printf("\t--version\tPrint version info and exit\n"); 856 printf("\t--help\t\tPrint this page\n"); 857 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of" 858 " them\n"); 859 printf("\t--showcmd\tTurn a job file into command line options\n"); 860 printf("\t--eta=when\tWhen ETA estimate should be printed\n"); 861 printf("\t \tMay be \"always\", \"never\" or \"auto\"\n"); 862 printf("\t--readonly\tTurn on safety read-only checks, preventing" 863 " writes\n"); 864 printf("\t--section=name\tOnly run specified section in job file\n"); 865 printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb" 866 " (def 1024)\n"); 867} 868 869#ifdef FIO_INC_DEBUG 870struct debug_level debug_levels[] = { 871 { .name = "process", .shift = FD_PROCESS, }, 872 { .name = "file", .shift = FD_FILE, }, 873 { .name = "io", .shift = FD_IO, }, 874 { .name = "mem", .shift = FD_MEM, }, 875 { .name = "blktrace", .shift = FD_BLKTRACE }, 876 { .name = "verify", .shift = FD_VERIFY }, 877 { .name = "random", .shift = FD_RANDOM }, 878 { .name = "parse", .shift = FD_PARSE }, 879 { .name = "diskutil", .shift = FD_DISKUTIL }, 880 { .name = "job", .shift = FD_JOB }, 881 { }, 882}; 883 884static int set_debug(const char *string) 885{ 886 struct debug_level *dl; 887 char *p = (char *) string; 888 char *opt; 889 int i; 890 891 if (!strcmp(string, "?") || !strcmp(string, "help")) { 892 int i; 893 894 log_info("fio: dumping debug options:"); 895 for (i = 0; debug_levels[i].name; i++) { 896 dl = &debug_levels[i]; 897 log_info("%s,", dl->name); 898 } 899 log_info("all\n"); 900 return 1; 901 } 902 903 while ((opt = strsep(&p, ",")) != NULL) { 904 int found = 0; 905 906 if (!strncmp(opt, "all", 3)) { 907 log_info("fio: set all debug options\n"); 908 fio_debug = ~0UL; 909 continue; 910 } 911 912 for (i = 0; debug_levels[i].name; i++) { 913 dl = &debug_levels[i]; 914 found = !strncmp(opt, dl->name, strlen(dl->name)); 915 if (!found) 916 continue; 917 918 if (dl->shift == FD_JOB) { 919 opt = strchr(opt, ':'); 920 if (!opt) { 921 log_err("fio: missing job number\n"); 922 break; 923 } 924 opt++; 925 fio_debug_jobno = atoi(opt); 926 log_info("fio: set debug jobno %d\n", 927 fio_debug_jobno); 928 } else { 929 log_info("fio: set debug option %s\n", opt); 930 fio_debug |= (1UL << dl->shift); 931 } 932 break; 933 } 934 935 if (!found) 936 log_err("fio: debug mask %s not found\n", opt); 937 } 938 return 0; 939} 940#else 941static int set_debug(const char *string) 942{ 943 log_err("fio: debug tracing not included in build\n"); 944 return 1; 945} 946#endif 947 948static int parse_cmd_line(int argc, char *argv[]) 949{ 950 struct thread_data *td = NULL; 951 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; 952 953 while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) { 954 switch (c) { 955 case 'a': 956 smalloc_pool_size = atoi(optarg); 957 break; 958 case 't': 959 def_timeout = atoi(optarg); 960 break; 961 case 'l': 962 write_lat_log = 1; 963 break; 964 case 'w': 965 write_bw_log = 1; 966 break; 967 case 'o': 968 f_out = fopen(optarg, "w+"); 969 if (!f_out) { 970 perror("fopen output"); 971 exit(1); 972 } 973 f_err = f_out; 974 break; 975 case 'm': 976 terse_output = 1; 977 break; 978 case 'h': 979 usage(argv[0]); 980 exit(0); 981 case 'c': 982 exit(fio_show_option_help(optarg)); 983 case 's': 984 dump_cmdline = 1; 985 break; 986 case 'r': 987 read_only = 1; 988 break; 989 case 'v': 990 printf("%s\n", fio_version_string); 991 exit(0); 992 case 'e': 993 if (!strcmp("always", optarg)) 994 eta_print = FIO_ETA_ALWAYS; 995 else if (!strcmp("never", optarg)) 996 eta_print = FIO_ETA_NEVER; 997 break; 998 case 'd': 999 if (set_debug(optarg)) 1000 do_exit++; 1001 break; 1002 case 'x': 1003 if (!strcmp(optarg, "global")) { 1004 log_err("fio: can't use global as only " 1005 "section\n"); 1006 do_exit++; 1007 exit_val = 1; 1008 break; 1009 } 1010 if (job_section) 1011 free(job_section); 1012 job_section = strdup(optarg); 1013 break; 1014 case FIO_GETOPT_JOB: { 1015 const char *opt = l_opts[lidx].name; 1016 char *val = optarg; 1017 1018 if (!strncmp(opt, "name", 4) && td) { 1019 ret = add_job(td, td->o.name ?: "fio", 0); 1020 if (ret) { 1021 put_job(td); 1022 return 0; 1023 } 1024 td = NULL; 1025 } 1026 if (!td) { 1027 int is_section = !strncmp(opt, "name", 4); 1028 int global = 0; 1029 1030 if (!is_section || !strncmp(val, "global", 6)) 1031 global = 1; 1032 1033 if (is_section && skip_this_section(val)) 1034 continue; 1035 1036 td = get_new_job(global, &def_thread); 1037 if (!td) 1038 return 0; 1039 } 1040 1041 ret = fio_cmd_option_parse(td, opt, val); 1042 break; 1043 } 1044 default: 1045 do_exit++; 1046 exit_val = 1; 1047 break; 1048 } 1049 } 1050 1051 if (do_exit) 1052 exit(exit_val); 1053 1054 if (td) { 1055 if (!ret) 1056 ret = add_job(td, td->o.name ?: "fio", 0); 1057 if (ret) 1058 put_job(td); 1059 } 1060 1061 while (optind < argc) { 1062 ini_idx++; 1063 ini_file = realloc(ini_file, ini_idx * sizeof(char *)); 1064 ini_file[ini_idx - 1] = strdup(argv[optind]); 1065 optind++; 1066 } 1067 1068 return ini_idx; 1069} 1070 1071int parse_options(int argc, char *argv[]) 1072{ 1073 int job_files, i; 1074 1075 f_out = stdout; 1076 f_err = stderr; 1077 1078 fio_options_dup_and_init(l_opts); 1079 1080 if (setup_thread_area()) 1081 return 1; 1082 if (fill_def_thread()) 1083 return 1; 1084 1085 job_files = parse_cmd_line(argc, argv); 1086 1087 for (i = 0; i < job_files; i++) { 1088 if (fill_def_thread()) 1089 return 1; 1090 if (parse_jobs_ini(ini_file[i], i)) 1091 return 1; 1092 free(ini_file[i]); 1093 } 1094 1095 free(ini_file); 1096 options_mem_free(&def_thread); 1097 1098 if (!thread_number) { 1099 if (dump_cmdline) 1100 return 0; 1101 1102 log_err("No jobs defined(s)\n"); 1103 usage(argv[0]); 1104 return 1; 1105 } 1106 1107 return 0; 1108} 1109