init.c revision 69b98d4c9945bed6b3446a9e73bfaf8e557cf033
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-rc3"; 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; 617 618 if (!strcmp(file, "-")) 619 f = stdin; 620 else 621 f = fopen(file, "r"); 622 623 if (!f) { 624 perror("fopen job file"); 625 return 1; 626 } 627 628 string = malloc(4096); 629 630 /* 631 * it's really 256 + small bit, 280 should suffice 632 */ 633 name = malloc(280); 634 memset(name, 0, 280); 635 636 stonewall = stonewall_flag; 637 do { 638 /* 639 * if skip_fgets is set, we already have loaded a line we 640 * haven't handled. 641 */ 642 if (!skip_fgets) { 643 p = fgets(string, 4095, f); 644 if (!p) 645 break; 646 } 647 648 skip_fgets = 0; 649 strip_blank_front(&p); 650 strip_blank_end(p); 651 652 if (is_empty_or_comment(p)) 653 continue; 654 if (sscanf(p, "[%255s]", name) != 1) { 655 if (inside_skip) 656 continue; 657 log_err("fio: option <%s> outside of [] job section\n", 658 p); 659 break; 660 } 661 662 if (skip_this_section(name)) { 663 inside_skip = 1; 664 continue; 665 } else 666 inside_skip = 0; 667 668 global = !strncmp(name, "global", 6); 669 670 name[strlen(name) - 1] = '\0'; 671 672 if (dump_cmdline) { 673 if (first_sect) 674 log_info("fio "); 675 if (!global) 676 log_info("--name=%s ", name); 677 first_sect = 0; 678 } 679 680 td = get_new_job(global, &def_thread); 681 if (!td) { 682 ret = 1; 683 break; 684 } 685 686 /* 687 * Seperate multiple job files by a stonewall 688 */ 689 if (!global && stonewall) { 690 td->o.stonewall = stonewall; 691 stonewall = 0; 692 } 693 694 while ((p = fgets(string, 4096, f)) != NULL) { 695 if (is_empty_or_comment(p)) 696 continue; 697 698 strip_blank_front(&p); 699 700 /* 701 * new section, break out and make sure we don't 702 * fgets() a new line at the top. 703 */ 704 if (p[0] == '[') { 705 skip_fgets = 1; 706 break; 707 } 708 709 strip_blank_end(p); 710 711 /* 712 * Don't break here, continue parsing options so we 713 * dump all the bad ones. Makes trial/error fixups 714 * easier on the user. 715 */ 716 ret |= fio_option_parse(td, p); 717 if (!ret && dump_cmdline) 718 log_info("--%s ", p); 719 } 720 721 if (!ret) 722 ret = add_job(td, name, 0); 723 else { 724 log_err("fio: job %s dropped\n", name); 725 put_job(td); 726 } 727 } while (!ret); 728 729 if (dump_cmdline) 730 log_info("\n"); 731 732 free(string); 733 free(name); 734 if (f != stdin) 735 fclose(f); 736 return ret; 737} 738 739static int fill_def_thread(void) 740{ 741 memset(&def_thread, 0, sizeof(def_thread)); 742 743 fio_getaffinity(getpid(), &def_thread.o.cpumask); 744 745 /* 746 * fill default options 747 */ 748 fio_fill_default_options(&def_thread); 749 750 def_thread.o.timeout = def_timeout; 751 def_thread.o.write_bw_log = write_bw_log; 752 def_thread.o.write_lat_log = write_lat_log; 753 754 return 0; 755} 756 757static void free_shm(void) 758{ 759 struct shmid_ds sbuf; 760 761 if (threads) { 762 void *tp = threads; 763 764 threads = NULL; 765 file_hash_exit(); 766 fio_debug_jobp = NULL; 767 shmdt(tp); 768 shmctl(shm_id, IPC_RMID, &sbuf); 769 } 770 771 scleanup(); 772} 773 774/* 775 * The thread area is shared between the main process and the job 776 * threads/processes. So setup a shared memory segment that will hold 777 * all the job info. We use the end of the region for keeping track of 778 * open files across jobs, for file sharing. 779 */ 780static int setup_thread_area(void) 781{ 782 void *hash; 783 784 /* 785 * 1024 is too much on some machines, scale max_jobs if 786 * we get a failure that looks like too large a shm segment 787 */ 788 do { 789 size_t size = max_jobs * sizeof(struct thread_data); 790 791 size += file_hash_size; 792 size += sizeof(unsigned int); 793 794 shm_id = shmget(0, size, IPC_CREAT | 0600); 795 if (shm_id != -1) 796 break; 797 if (errno != EINVAL) { 798 perror("shmget"); 799 break; 800 } 801 802 max_jobs >>= 1; 803 } while (max_jobs); 804 805 if (shm_id == -1) 806 return 1; 807 808 threads = shmat(shm_id, NULL, 0); 809 if (threads == (void *) -1) { 810 perror("shmat"); 811 return 1; 812 } 813 814 memset(threads, 0, max_jobs * sizeof(struct thread_data)); 815 hash = (void *) threads + max_jobs * sizeof(struct thread_data); 816 fio_debug_jobp = (void *) hash + file_hash_size; 817 *fio_debug_jobp = -1; 818 file_hash_init(hash); 819 atexit(free_shm); 820 return 0; 821} 822 823static void usage(const char *name) 824{ 825 printf("%s\n", fio_version_string); 826 printf("%s [options] [job options] <job file(s)>\n", name); 827 printf("\t--debug=options\tEnable debug logging\n"); 828 printf("\t--output\tWrite output to file\n"); 829 printf("\t--timeout\tRuntime in seconds\n"); 830 printf("\t--latency-log\tGenerate per-job latency logs\n"); 831 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n"); 832 printf("\t--minimal\tMinimal (terse) output\n"); 833 printf("\t--version\tPrint version info and exit\n"); 834 printf("\t--help\t\tPrint this page\n"); 835 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of" 836 " them\n"); 837 printf("\t--showcmd\tTurn a job file into command line options\n"); 838 printf("\t--eta=when\tWhen ETA estimate should be printed\n"); 839 printf("\t \tMay be \"always\", \"never\" or \"auto\"\n"); 840 printf("\t--readonly\tTurn on safety read-only checks, preventing" 841 " writes\n"); 842 printf("\t--section=name\tOnly run specified section in job file\n"); 843 printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb" 844 " (def 1024)\n"); 845} 846 847#ifdef FIO_INC_DEBUG 848struct debug_level debug_levels[] = { 849 { .name = "process", .shift = FD_PROCESS, }, 850 { .name = "file", .shift = FD_FILE, }, 851 { .name = "io", .shift = FD_IO, }, 852 { .name = "mem", .shift = FD_MEM, }, 853 { .name = "blktrace", .shift = FD_BLKTRACE }, 854 { .name = "verify", .shift = FD_VERIFY }, 855 { .name = "random", .shift = FD_RANDOM }, 856 { .name = "parse", .shift = FD_PARSE }, 857 { .name = "diskutil", .shift = FD_DISKUTIL }, 858 { .name = "job", .shift = FD_JOB }, 859 { }, 860}; 861 862static int set_debug(const char *string) 863{ 864 struct debug_level *dl; 865 char *p = (char *) string; 866 char *opt; 867 int i; 868 869 if (!strcmp(string, "?") || !strcmp(string, "help")) { 870 int i; 871 872 log_info("fio: dumping debug options:"); 873 for (i = 0; debug_levels[i].name; i++) { 874 dl = &debug_levels[i]; 875 log_info("%s,", dl->name); 876 } 877 log_info("all\n"); 878 return 1; 879 } 880 881 while ((opt = strsep(&p, ",")) != NULL) { 882 int found = 0; 883 884 if (!strncmp(opt, "all", 3)) { 885 log_info("fio: set all debug options\n"); 886 fio_debug = ~0UL; 887 continue; 888 } 889 890 for (i = 0; debug_levels[i].name; i++) { 891 dl = &debug_levels[i]; 892 found = !strncmp(opt, dl->name, strlen(dl->name)); 893 if (!found) 894 continue; 895 896 if (dl->shift == FD_JOB) { 897 opt = strchr(opt, ':'); 898 if (!opt) { 899 log_err("fio: missing job number\n"); 900 break; 901 } 902 opt++; 903 fio_debug_jobno = atoi(opt); 904 log_info("fio: set debug jobno %d\n", 905 fio_debug_jobno); 906 } else { 907 log_info("fio: set debug option %s\n", opt); 908 fio_debug |= (1UL << dl->shift); 909 } 910 break; 911 } 912 913 if (!found) 914 log_err("fio: debug mask %s not found\n", opt); 915 } 916 return 0; 917} 918#else 919static int set_debug(const char *string) 920{ 921 log_err("fio: debug tracing not included in build\n"); 922 return 1; 923} 924#endif 925 926static int parse_cmd_line(int argc, char *argv[]) 927{ 928 struct thread_data *td = NULL; 929 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; 930 931 while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) { 932 switch (c) { 933 case 'a': 934 smalloc_pool_size = atoi(optarg); 935 break; 936 case 't': 937 def_timeout = atoi(optarg); 938 break; 939 case 'l': 940 write_lat_log = 1; 941 break; 942 case 'w': 943 write_bw_log = 1; 944 break; 945 case 'o': 946 f_out = fopen(optarg, "w+"); 947 if (!f_out) { 948 perror("fopen output"); 949 exit(1); 950 } 951 f_err = f_out; 952 break; 953 case 'm': 954 terse_output = 1; 955 break; 956 case 'h': 957 usage(argv[0]); 958 exit(0); 959 case 'c': 960 exit(fio_show_option_help(optarg)); 961 case 's': 962 dump_cmdline = 1; 963 break; 964 case 'r': 965 read_only = 1; 966 break; 967 case 'v': 968 printf("%s\n", fio_version_string); 969 exit(0); 970 case 'e': 971 if (!strcmp("always", optarg)) 972 eta_print = FIO_ETA_ALWAYS; 973 else if (!strcmp("never", optarg)) 974 eta_print = FIO_ETA_NEVER; 975 break; 976 case 'd': 977 if (set_debug(optarg)) 978 do_exit++; 979 break; 980 case 'x': 981 if (!strcmp(optarg, "global")) { 982 log_err("fio: can't use global as only " 983 "section\n"); 984 do_exit++; 985 exit_val = 1; 986 break; 987 } 988 if (job_section) 989 free(job_section); 990 job_section = strdup(optarg); 991 break; 992 case FIO_GETOPT_JOB: { 993 const char *opt = l_opts[lidx].name; 994 char *val = optarg; 995 996 if (!strncmp(opt, "name", 4) && td) { 997 ret = add_job(td, td->o.name ?: "fio", 0); 998 if (ret) { 999 put_job(td); 1000 return 0; 1001 } 1002 td = NULL; 1003 } 1004 if (!td) { 1005 int is_section = !strncmp(opt, "name", 4); 1006 int global = 0; 1007 1008 if (!is_section || !strncmp(val, "global", 6)) 1009 global = 1; 1010 1011 if (is_section && skip_this_section(val)) 1012 continue; 1013 1014 td = get_new_job(global, &def_thread); 1015 if (!td) 1016 return 0; 1017 } 1018 1019 ret = fio_cmd_option_parse(td, opt, val); 1020 break; 1021 } 1022 default: 1023 do_exit++; 1024 exit_val = 1; 1025 break; 1026 } 1027 } 1028 1029 if (do_exit) 1030 exit(exit_val); 1031 1032 if (td) { 1033 if (!ret) 1034 ret = add_job(td, td->o.name ?: "fio", 0); 1035 if (ret) 1036 put_job(td); 1037 } 1038 1039 while (optind < argc) { 1040 ini_idx++; 1041 ini_file = realloc(ini_file, ini_idx * sizeof(char *)); 1042 ini_file[ini_idx - 1] = strdup(argv[optind]); 1043 optind++; 1044 } 1045 1046 return ini_idx; 1047} 1048 1049int parse_options(int argc, char *argv[]) 1050{ 1051 int job_files, i; 1052 1053 f_out = stdout; 1054 f_err = stderr; 1055 1056 fio_options_dup_and_init(l_opts); 1057 1058 if (setup_thread_area()) 1059 return 1; 1060 if (fill_def_thread()) 1061 return 1; 1062 1063 job_files = parse_cmd_line(argc, argv); 1064 1065 for (i = 0; i < job_files; i++) { 1066 if (fill_def_thread()) 1067 return 1; 1068 if (parse_jobs_ini(ini_file[i], i)) 1069 return 1; 1070 free(ini_file[i]); 1071 } 1072 1073 free(ini_file); 1074 options_mem_free(&def_thread); 1075 1076 if (!thread_number) { 1077 if (dump_cmdline) 1078 return 0; 1079 1080 log_err("No jobs defined(s)\n"); 1081 usage(argv[0]); 1082 return 1; 1083 } 1084 1085 return 0; 1086} 1087