| 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 | |
| 20 | static char fio_version_string[] = "fio 1.17.3"; |
| 21 | |
| 22 | #define FIO_RANDSEED (0xb1899bedUL) |
| 23 | |
| 24 | static char **ini_file; |
| 25 | static int max_jobs = MAX_JOBS; |
| 26 | static int dump_cmdline; |
| 27 | |
| 28 | struct thread_data def_thread; |
| 29 | struct thread_data *threads = NULL; |
| 30 | |
| 31 | int exitall_on_terminate = 0; |
| 32 | int terse_output = 0; |
| 33 | int eta_print; |
| 34 | unsigned long long mlock_size = 0; |
| 35 | FILE *f_out = NULL; |
| 36 | FILE *f_err = NULL; |
| 37 | |
| 38 | int write_bw_log = 0; |
| 39 | int read_only = 0; |
| 40 | |
| 41 | static int def_timeout = 0; |
| 42 | static int write_lat_log = 0; |
| 43 | |
| 44 | static int prev_group_jobs; |
| 45 | |
| 46 | unsigned long fio_debug = 0; |
| 47 | |
| 48 | /* |
| 49 | * Command line options. These will contain the above, plus a few |
| 50 | * extra that only pertain to fio itself and not jobs. |
| 51 | */ |
| 52 | static struct option long_options[FIO_NR_OPTIONS] = { |
| 53 | { |
| 54 | .name = "output", |
| 55 | .has_arg = required_argument, |
| 56 | .val = 'o', |
| 57 | }, |
| 58 | { |
| 59 | .name = "timeout", |
| 60 | .has_arg = required_argument, |
| 61 | .val = 't', |
| 62 | }, |
| 63 | { |
| 64 | .name = "latency-log", |
| 65 | .has_arg = required_argument, |
| 66 | .val = 'l', |
| 67 | }, |
| 68 | { |
| 69 | .name = "bandwidth-log", |
| 70 | .has_arg = required_argument, |
| 71 | .val = 'b', |
| 72 | }, |
| 73 | { |
| 74 | .name = "minimal", |
| 75 | .has_arg = optional_argument, |
| 76 | .val = 'm', |
| 77 | }, |
| 78 | { |
| 79 | .name = "version", |
| 80 | .has_arg = no_argument, |
| 81 | .val = 'v', |
| 82 | }, |
| 83 | { |
| 84 | .name = "help", |
| 85 | .has_arg = no_argument, |
| 86 | .val = 'h', |
| 87 | }, |
| 88 | { |
| 89 | .name = "cmdhelp", |
| 90 | .has_arg = optional_argument, |
| 91 | .val = 'c', |
| 92 | }, |
| 93 | { |
| 94 | .name = "showcmd", |
| 95 | .has_arg = no_argument, |
| 96 | .val = 's', |
| 97 | }, |
| 98 | { |
| 99 | .name = "readonly", |
| 100 | .has_arg = no_argument, |
| 101 | .val = 'r', |
| 102 | }, |
| 103 | { |
| 104 | .name = "eta", |
| 105 | .has_arg = required_argument, |
| 106 | .val = 'e', |
| 107 | }, |
| 108 | { |
| 109 | .name = "debug", |
| 110 | .has_arg = required_argument, |
| 111 | .val = 'd', |
| 112 | }, |
| 113 | { |
| 114 | .name = NULL, |
| 115 | }, |
| 116 | }; |
| 117 | |
| 118 | FILE *get_f_out() |
| 119 | { |
| 120 | return f_out; |
| 121 | } |
| 122 | |
| 123 | FILE *get_f_err() |
| 124 | { |
| 125 | return f_err; |
| 126 | } |
| 127 | |
| 128 | /* |
| 129 | * Return a free job structure. |
| 130 | */ |
| 131 | static struct thread_data *get_new_job(int global, struct thread_data *parent) |
| 132 | { |
| 133 | struct thread_data *td; |
| 134 | |
| 135 | if (global) |
| 136 | return &def_thread; |
| 137 | if (thread_number >= max_jobs) |
| 138 | return NULL; |
| 139 | |
| 140 | td = &threads[thread_number++]; |
| 141 | *td = *parent; |
| 142 | |
| 143 | dup_files(td, parent); |
| 144 | options_mem_dupe(td); |
| 145 | |
| 146 | td->thread_number = thread_number; |
| 147 | return td; |
| 148 | } |
| 149 | |
| 150 | static void put_job(struct thread_data *td) |
| 151 | { |
| 152 | if (td == &def_thread) |
| 153 | return; |
| 154 | |
| 155 | if (td->error) |
| 156 | log_info("fio: %s\n", td->verror); |
| 157 | |
| 158 | memset(&threads[td->thread_number - 1], 0, sizeof(*td)); |
| 159 | thread_number--; |
| 160 | } |
| 161 | |
| 162 | static int setup_rate(struct thread_data *td) |
| 163 | { |
| 164 | unsigned long nr_reads_per_msec; |
| 165 | unsigned long long rate; |
| 166 | unsigned int bs; |
| 167 | |
| 168 | if (!td->o.rate && !td->o.rate_iops) |
| 169 | return 0; |
| 170 | |
| 171 | if (td_rw(td)) |
| 172 | bs = td->o.rw_min_bs; |
| 173 | else if (td_read(td)) |
| 174 | bs = td->o.min_bs[DDIR_READ]; |
| 175 | else |
| 176 | bs = td->o.min_bs[DDIR_WRITE]; |
| 177 | |
| 178 | if (td->o.rate) { |
| 179 | rate = td->o.rate; |
| 180 | nr_reads_per_msec = (rate * 1024 * 1000LL) / bs; |
| 181 | } else |
| 182 | nr_reads_per_msec = td->o.rate_iops * 1000UL; |
| 183 | |
| 184 | if (!nr_reads_per_msec) { |
| 185 | log_err("rate lower than supported\n"); |
| 186 | return -1; |
| 187 | } |
| 188 | |
| 189 | td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec; |
| 190 | td->rate_pending_usleep = 0; |
| 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | /* |
| 195 | * Lazy way of fixing up options that depend on each other. We could also |
| 196 | * define option callback handlers, but this is easier. |
| 197 | */ |
| 198 | static int fixup_options(struct thread_data *td) |
| 199 | { |
| 200 | struct thread_options *o = &td->o; |
| 201 | |
| 202 | if (read_only && td_write(td)) { |
| 203 | log_err("fio: job <%s> has write bit set, but fio is in read-only mode\n", td->o.name); |
| 204 | return 1; |
| 205 | } |
| 206 | |
| 207 | if (o->rwmix[DDIR_READ] + o->rwmix[DDIR_WRITE] > 100) |
| 208 | o->rwmix[DDIR_WRITE] = 100 - o->rwmix[DDIR_READ]; |
| 209 | |
| 210 | if (o->write_iolog_file && o->read_iolog_file) { |
| 211 | log_err("fio: read iolog overrides write_iolog\n"); |
| 212 | free(o->write_iolog_file); |
| 213 | o->write_iolog_file = NULL; |
| 214 | } |
| 215 | |
| 216 | /* |
| 217 | * only really works for sequential io for now, and with 1 file |
| 218 | */ |
| 219 | if (o->zone_size && td_random(td) && o->open_files == 1) |
| 220 | o->zone_size = 0; |
| 221 | |
| 222 | /* |
| 223 | * Reads can do overwrites, we always need to pre-create the file |
| 224 | */ |
| 225 | if (td_read(td) || td_rw(td)) |
| 226 | o->overwrite = 1; |
| 227 | |
| 228 | if (!o->min_bs[DDIR_READ]) |
| 229 | o->min_bs[DDIR_READ]= o->bs[DDIR_READ]; |
| 230 | if (!o->max_bs[DDIR_READ]) |
| 231 | o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; |
| 232 | if (!o->min_bs[DDIR_WRITE]) |
| 233 | o->min_bs[DDIR_WRITE]= o->bs[DDIR_WRITE]; |
| 234 | if (!o->max_bs[DDIR_WRITE]) |
| 235 | o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; |
| 236 | |
| 237 | o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); |
| 238 | |
| 239 | if (!o->file_size_high) |
| 240 | o->file_size_high = o->file_size_low; |
| 241 | |
| 242 | if (o->norandommap && o->verify != VERIFY_NONE) { |
| 243 | log_err("fio: norandommap given, verify disabled\n"); |
| 244 | o->verify = VERIFY_NONE; |
| 245 | } |
| 246 | if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) |
| 247 | log_err("fio: bs_unaligned may not work with raw io\n"); |
| 248 | |
| 249 | /* |
| 250 | * thinktime_spin must be less than thinktime |
| 251 | */ |
| 252 | if (o->thinktime_spin > o->thinktime) |
| 253 | o->thinktime_spin = o->thinktime; |
| 254 | |
| 255 | /* |
| 256 | * The low water mark cannot be bigger than the iodepth |
| 257 | */ |
| 258 | if (o->iodepth_low > o->iodepth || !o->iodepth_low) { |
| 259 | /* |
| 260 | * syslet work around - if the workload is sequential, |
| 261 | * we want to let the queue drain all the way down to |
| 262 | * avoid seeking between async threads |
| 263 | */ |
| 264 | if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) |
| 265 | o->iodepth_low = 1; |
| 266 | else |
| 267 | o->iodepth_low = o->iodepth; |
| 268 | } |
| 269 | |
| 270 | /* |
| 271 | * If batch number isn't set, default to the same as iodepth |
| 272 | */ |
| 273 | if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) |
| 274 | o->iodepth_batch = o->iodepth; |
| 275 | |
| 276 | if (o->nr_files > td->files_index) |
| 277 | o->nr_files = td->files_index; |
| 278 | |
| 279 | if (o->open_files > o->nr_files || !o->open_files) |
| 280 | o->open_files = o->nr_files; |
| 281 | |
| 282 | if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) { |
| 283 | log_err("fio: rate and rate_iops are mutually exclusive\n"); |
| 284 | return 1; |
| 285 | } |
| 286 | if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) { |
| 287 | log_err("fio: minimum rate exceeds rate\n"); |
| 288 | return 1; |
| 289 | } |
| 290 | |
| 291 | if (!o->timeout && o->time_based) { |
| 292 | log_err("fio: time_based requires a runtime/timeout setting\n"); |
| 293 | o->time_based = 0; |
| 294 | } |
| 295 | |
| 296 | if (o->fill_device && !o->size) |
| 297 | o->size = ULONG_LONG_MAX; |
| 298 | |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | /* |
| 303 | * This function leaks the buffer |
| 304 | */ |
| 305 | static char *to_kmg(unsigned int val) |
| 306 | { |
| 307 | char *buf = malloc(32); |
| 308 | char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; |
| 309 | char *p = post; |
| 310 | |
| 311 | do { |
| 312 | if (val & 1023) |
| 313 | break; |
| 314 | |
| 315 | val >>= 10; |
| 316 | p++; |
| 317 | } while (*p); |
| 318 | |
| 319 | snprintf(buf, 31, "%u%c", val, *p); |
| 320 | return buf; |
| 321 | } |
| 322 | |
| 323 | /* External engines are specified by "external:name.o") */ |
| 324 | static const char *get_engine_name(const char *str) |
| 325 | { |
| 326 | char *p = strstr(str, ":"); |
| 327 | |
| 328 | if (!p) |
| 329 | return str; |
| 330 | |
| 331 | p++; |
| 332 | strip_blank_front(&p); |
| 333 | strip_blank_end(p); |
| 334 | return p; |
| 335 | } |
| 336 | |
| 337 | static int exists_and_not_file(const char *filename) |
| 338 | { |
| 339 | struct stat sb; |
| 340 | |
| 341 | if (lstat(filename, &sb) == -1) |
| 342 | return 0; |
| 343 | |
| 344 | if (S_ISREG(sb.st_mode)) |
| 345 | return 0; |
| 346 | |
| 347 | return 1; |
| 348 | } |
| 349 | |
| 350 | /* |
| 351 | * Initialize the various random states we need (random io, block size ranges, |
| 352 | * read/write mix, etc). |
| 353 | */ |
| 354 | static int init_random_state(struct thread_data *td) |
| 355 | { |
| 356 | unsigned long seeds[6]; |
| 357 | int fd; |
| 358 | |
| 359 | fd = open("/dev/urandom", O_RDONLY); |
| 360 | if (fd == -1) { |
| 361 | td_verror(td, errno, "open"); |
| 362 | return 1; |
| 363 | } |
| 364 | |
| 365 | if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) { |
| 366 | td_verror(td, EIO, "read"); |
| 367 | close(fd); |
| 368 | return 1; |
| 369 | } |
| 370 | |
| 371 | close(fd); |
| 372 | |
| 373 | os_random_seed(seeds[0], &td->bsrange_state); |
| 374 | os_random_seed(seeds[1], &td->verify_state); |
| 375 | os_random_seed(seeds[2], &td->rwmix_state); |
| 376 | |
| 377 | if (td->o.file_service_type == FIO_FSERVICE_RANDOM) |
| 378 | os_random_seed(seeds[3], &td->next_file_state); |
| 379 | |
| 380 | os_random_seed(seeds[5], &td->file_size_state); |
| 381 | |
| 382 | if (!td_random(td)) |
| 383 | return 0; |
| 384 | |
| 385 | if (td->o.rand_repeatable) |
| 386 | seeds[4] = FIO_RANDSEED * td->thread_number; |
| 387 | |
| 388 | os_random_seed(seeds[4], &td->random_state); |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | /* |
| 393 | * Adds a job to the list of things todo. Sanitizes the various options |
| 394 | * to make sure we don't have conflicts, and initializes various |
| 395 | * members of td. |
| 396 | */ |
| 397 | static int add_job(struct thread_data *td, const char *jobname, int job_add_num) |
| 398 | { |
| 399 | const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, |
| 400 | "randread", "randwrite", "randrw" }; |
| 401 | unsigned int i; |
| 402 | const char *engine; |
| 403 | char fname[PATH_MAX]; |
| 404 | int numjobs, file_alloced; |
| 405 | |
| 406 | /* |
| 407 | * the def_thread is just for options, it's not a real job |
| 408 | */ |
| 409 | if (td == &def_thread) |
| 410 | return 0; |
| 411 | |
| 412 | /* |
| 413 | * if we are just dumping the output command line, don't add the job |
| 414 | */ |
| 415 | if (dump_cmdline) { |
| 416 | put_job(td); |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | engine = get_engine_name(td->o.ioengine); |
| 421 | td->io_ops = load_ioengine(td, engine); |
| 422 | if (!td->io_ops) { |
| 423 | log_err("fio: failed to load engine %s\n", engine); |
| 424 | goto err; |
| 425 | } |
| 426 | |
| 427 | if (td->o.use_thread) |
| 428 | nr_thread++; |
| 429 | else |
| 430 | nr_process++; |
| 431 | |
| 432 | if (td->o.odirect) |
| 433 | td->io_ops->flags |= FIO_RAWIO; |
| 434 | |
| 435 | file_alloced = 0; |
| 436 | if (!td->o.filename && !td->files_index) { |
| 437 | file_alloced = 1; |
| 438 | |
| 439 | if (td->o.nr_files == 1 && exists_and_not_file(jobname)) |
| 440 | add_file(td, jobname); |
| 441 | else { |
| 442 | for (i = 0; i < td->o.nr_files; i++) { |
| 443 | sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i); |
| 444 | add_file(td, fname); |
| 445 | } |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | if (fixup_options(td)) |
| 450 | goto err; |
| 451 | |
| 452 | if (td->io_ops->flags & FIO_DISKLESSIO) { |
| 453 | struct fio_file *f; |
| 454 | |
| 455 | for_each_file(td, f, i) |
| 456 | f->real_file_size = -1ULL; |
| 457 | } |
| 458 | |
| 459 | td->mutex = fio_sem_init(0); |
| 460 | |
| 461 | td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX; |
| 462 | td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX; |
| 463 | td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX; |
| 464 | td->ddir_nr = td->o.ddir_nr; |
| 465 | |
| 466 | if ((td->o.stonewall || td->o.numjobs > 1 || td->o.new_group) |
| 467 | && prev_group_jobs) { |
| 468 | prev_group_jobs = 0; |
| 469 | groupid++; |
| 470 | } |
| 471 | |
| 472 | td->groupid = groupid; |
| 473 | prev_group_jobs++; |
| 474 | |
| 475 | if (init_random_state(td)) |
| 476 | goto err; |
| 477 | |
| 478 | if (setup_rate(td)) |
| 479 | goto err; |
| 480 | |
| 481 | if (td->o.write_lat_log) { |
| 482 | setup_log(&td->ts.slat_log); |
| 483 | setup_log(&td->ts.clat_log); |
| 484 | } |
| 485 | if (td->o.write_bw_log) |
| 486 | setup_log(&td->ts.bw_log); |
| 487 | |
| 488 | if (!td->o.name) |
| 489 | td->o.name = strdup(jobname); |
| 490 | |
| 491 | if (!terse_output) { |
| 492 | if (!job_add_num) { |
| 493 | if (!strcmp(td->io_ops->name, "cpuio")) |
| 494 | log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->o.name, td->o.cpuload, td->o.cpucycle); |
| 495 | else { |
| 496 | char *c1, *c2, *c3, *c4; |
| 497 | |
| 498 | c1 = to_kmg(td->o.min_bs[DDIR_READ]); |
| 499 | c2 = to_kmg(td->o.max_bs[DDIR_READ]); |
| 500 | c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); |
| 501 | c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); |
| 502 | |
| 503 | log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->o.name, td->groupid, ddir_str[td->o.td_ddir], c1, c2, c3, c4, td->io_ops->name, td->o.iodepth); |
| 504 | |
| 505 | free(c1); |
| 506 | free(c2); |
| 507 | free(c3); |
| 508 | free(c4); |
| 509 | } |
| 510 | } else if (job_add_num == 1) |
| 511 | log_info("...\n"); |
| 512 | } |
| 513 | |
| 514 | /* |
| 515 | * recurse add identical jobs, clear numjobs and stonewall options |
| 516 | * as they don't apply to sub-jobs |
| 517 | */ |
| 518 | numjobs = td->o.numjobs; |
| 519 | while (--numjobs) { |
| 520 | struct thread_data *td_new = get_new_job(0, td); |
| 521 | |
| 522 | if (!td_new) |
| 523 | goto err; |
| 524 | |
| 525 | td_new->o.numjobs = 1; |
| 526 | td_new->o.stonewall = 0; |
| 527 | td_new->o.new_group = 0; |
| 528 | |
| 529 | if (file_alloced) { |
| 530 | td_new->o.filename = NULL; |
| 531 | td_new->files_index = 0; |
| 532 | td_new->files = NULL; |
| 533 | } |
| 534 | |
| 535 | job_add_num = numjobs - 1; |
| 536 | |
| 537 | if (add_job(td_new, jobname, job_add_num)) |
| 538 | goto err; |
| 539 | } |
| 540 | |
| 541 | return 0; |
| 542 | err: |
| 543 | put_job(td); |
| 544 | return -1; |
| 545 | } |
| 546 | |
| 547 | static int is_empty_or_comment(char *line) |
| 548 | { |
| 549 | unsigned int i; |
| 550 | |
| 551 | for (i = 0; i < strlen(line); i++) { |
| 552 | if (line[i] == ';') |
| 553 | return 1; |
| 554 | if (line[i] == '#') |
| 555 | return 1; |
| 556 | if (!isspace(line[i]) && !iscntrl(line[i])) |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | return 1; |
| 561 | } |
| 562 | |
| 563 | /* |
| 564 | * This is our [ini] type file parser. |
| 565 | */ |
| 566 | static int parse_jobs_ini(char *file, int stonewall_flag) |
| 567 | { |
| 568 | unsigned int global; |
| 569 | struct thread_data *td; |
| 570 | char *string, *name; |
| 571 | FILE *f; |
| 572 | char *p; |
| 573 | int ret = 0, stonewall; |
| 574 | int first_sect = 1; |
| 575 | int skip_fgets = 0; |
| 576 | |
| 577 | if (!strcmp(file, "-")) |
| 578 | f = stdin; |
| 579 | else |
| 580 | f = fopen(file, "r"); |
| 581 | |
| 582 | if (!f) { |
| 583 | perror("fopen job file"); |
| 584 | return 1; |
| 585 | } |
| 586 | |
| 587 | string = malloc(4096); |
| 588 | |
| 589 | /* |
| 590 | * it's really 256 + small bit, 280 should suffice |
| 591 | */ |
| 592 | name = malloc(280); |
| 593 | memset(name, 0, 280); |
| 594 | |
| 595 | stonewall = stonewall_flag; |
| 596 | do { |
| 597 | /* |
| 598 | * if skip_fgets is set, we already have loaded a line we |
| 599 | * haven't handled. |
| 600 | */ |
| 601 | if (!skip_fgets) { |
| 602 | p = fgets(string, 4095, f); |
| 603 | if (!p) |
| 604 | break; |
| 605 | } |
| 606 | |
| 607 | skip_fgets = 0; |
| 608 | strip_blank_front(&p); |
| 609 | strip_blank_end(p); |
| 610 | |
| 611 | if (is_empty_or_comment(p)) |
| 612 | continue; |
| 613 | if (sscanf(p, "[%255s]", name) != 1) { |
| 614 | log_err("fio: option <%s> outside of [] job section\n", p); |
| 615 | break; |
| 616 | } |
| 617 | |
| 618 | global = !strncmp(name, "global", 6); |
| 619 | |
| 620 | name[strlen(name) - 1] = '\0'; |
| 621 | |
| 622 | if (dump_cmdline) { |
| 623 | if (first_sect) |
| 624 | log_info("fio "); |
| 625 | if (!global) |
| 626 | log_info("--name=%s ", name); |
| 627 | first_sect = 0; |
| 628 | } |
| 629 | |
| 630 | td = get_new_job(global, &def_thread); |
| 631 | if (!td) { |
| 632 | ret = 1; |
| 633 | break; |
| 634 | } |
| 635 | |
| 636 | /* |
| 637 | * Seperate multiple job files by a stonewall |
| 638 | */ |
| 639 | if (!global && stonewall) { |
| 640 | td->o.stonewall = stonewall; |
| 641 | stonewall = 0; |
| 642 | } |
| 643 | |
| 644 | while ((p = fgets(string, 4096, f)) != NULL) { |
| 645 | if (is_empty_or_comment(p)) |
| 646 | continue; |
| 647 | |
| 648 | strip_blank_front(&p); |
| 649 | |
| 650 | /* |
| 651 | * new section, break out and make sure we don't |
| 652 | * fgets() a new line at the top. |
| 653 | */ |
| 654 | if (p[0] == '[') { |
| 655 | skip_fgets = 1; |
| 656 | break; |
| 657 | } |
| 658 | |
| 659 | strip_blank_end(p); |
| 660 | |
| 661 | /* |
| 662 | * Don't break here, continue parsing options so we |
| 663 | * dump all the bad ones. Makes trial/error fixups |
| 664 | * easier on the user. |
| 665 | */ |
| 666 | ret |= fio_option_parse(td, p); |
| 667 | if (!ret && dump_cmdline) |
| 668 | log_info("--%s ", p); |
| 669 | } |
| 670 | |
| 671 | if (!ret) |
| 672 | ret = add_job(td, name, 0); |
| 673 | else { |
| 674 | log_err("fio: job %s dropped\n", name); |
| 675 | put_job(td); |
| 676 | } |
| 677 | } while (!ret); |
| 678 | |
| 679 | if (dump_cmdline) |
| 680 | log_info("\n"); |
| 681 | |
| 682 | free(string); |
| 683 | free(name); |
| 684 | if (f != stdin) |
| 685 | fclose(f); |
| 686 | return ret; |
| 687 | } |
| 688 | |
| 689 | static int fill_def_thread(void) |
| 690 | { |
| 691 | memset(&def_thread, 0, sizeof(def_thread)); |
| 692 | |
| 693 | fio_getaffinity(getpid(), &def_thread.o.cpumask); |
| 694 | |
| 695 | /* |
| 696 | * fill default options |
| 697 | */ |
| 698 | fio_fill_default_options(&def_thread); |
| 699 | |
| 700 | def_thread.o.timeout = def_timeout; |
| 701 | def_thread.o.write_bw_log = write_bw_log; |
| 702 | def_thread.o.write_lat_log = write_lat_log; |
| 703 | |
| 704 | return 0; |
| 705 | } |
| 706 | |
| 707 | static void free_shm(void) |
| 708 | { |
| 709 | struct shmid_ds sbuf; |
| 710 | |
| 711 | if (threads) { |
| 712 | shmdt((void *) threads); |
| 713 | threads = NULL; |
| 714 | shmctl(shm_id, IPC_RMID, &sbuf); |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | /* |
| 719 | * The thread area is shared between the main process and the job |
| 720 | * threads/processes. So setup a shared memory segment that will hold |
| 721 | * all the job info. |
| 722 | */ |
| 723 | static int setup_thread_area(void) |
| 724 | { |
| 725 | /* |
| 726 | * 1024 is too much on some machines, scale max_jobs if |
| 727 | * we get a failure that looks like too large a shm segment |
| 728 | */ |
| 729 | do { |
| 730 | size_t size = max_jobs * sizeof(struct thread_data); |
| 731 | |
| 732 | shm_id = shmget(0, size, IPC_CREAT | 0600); |
| 733 | if (shm_id != -1) |
| 734 | break; |
| 735 | if (errno != EINVAL) { |
| 736 | perror("shmget"); |
| 737 | break; |
| 738 | } |
| 739 | |
| 740 | max_jobs >>= 1; |
| 741 | } while (max_jobs); |
| 742 | |
| 743 | if (shm_id == -1) |
| 744 | return 1; |
| 745 | |
| 746 | threads = shmat(shm_id, NULL, 0); |
| 747 | if (threads == (void *) -1) { |
| 748 | perror("shmat"); |
| 749 | return 1; |
| 750 | } |
| 751 | |
| 752 | memset(threads, 0, max_jobs * sizeof(struct thread_data)); |
| 753 | atexit(free_shm); |
| 754 | return 0; |
| 755 | } |
| 756 | |
| 757 | static void usage(const char *name) |
| 758 | { |
| 759 | printf("%s\n", fio_version_string); |
| 760 | printf("%s [options] [job options] <job file(s)>\n", name); |
| 761 | printf("\t--debug=options\tEnable debug logging\n"); |
| 762 | printf("\t--output\tWrite output to file\n"); |
| 763 | printf("\t--timeout\tRuntime in seconds\n"); |
| 764 | printf("\t--latency-log\tGenerate per-job latency logs\n"); |
| 765 | printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n"); |
| 766 | printf("\t--minimal\tMinimal (terse) output\n"); |
| 767 | printf("\t--version\tPrint version info and exit\n"); |
| 768 | printf("\t--help\t\tPrint this page\n"); |
| 769 | printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n"); |
| 770 | printf("\t--showcmd\tTurn a job file into command line options\n"); |
| 771 | printf("\t--eta=when\tWhen ETA estimate should be printed\n"); |
| 772 | printf("\t \tMay be \"always\", \"never\" or \"auto\"\n"); |
| 773 | } |
| 774 | |
| 775 | #ifdef FIO_INC_DEBUG |
| 776 | struct debug_level debug_levels[] = { |
| 777 | { .name = "process", .shift = FD_PROCESS, }, |
| 778 | { .name = "file", .shift = FD_FILE, }, |
| 779 | { .name = "io", .shift = FD_IO, }, |
| 780 | { .name = "mem", .shift = FD_MEM, }, |
| 781 | { .name = "blktrace", .shift = FD_BLKTRACE }, |
| 782 | { .name = "verify", .shift = FD_VERIFY }, |
| 783 | { }, |
| 784 | }; |
| 785 | |
| 786 | static void set_debug(const char *string) |
| 787 | { |
| 788 | struct debug_level *dl; |
| 789 | char *p = (char *) string; |
| 790 | char *opt; |
| 791 | int i; |
| 792 | |
| 793 | if (!strcmp(string, "?") || !strcmp(string, "help")) { |
| 794 | int i; |
| 795 | |
| 796 | log_info("fio: dumping debug options:"); |
| 797 | for (i = 0; debug_levels[i].name; i++) { |
| 798 | dl = &debug_levels[i]; |
| 799 | log_info("%s,", dl->name); |
| 800 | } |
| 801 | log_info("all\n"); |
| 802 | return; |
| 803 | } else if (!strcmp(string, "all")) { |
| 804 | fio_debug = ~0UL; |
| 805 | return; |
| 806 | } |
| 807 | |
| 808 | while ((opt = strsep(&p, ",")) != NULL) { |
| 809 | int found = 0; |
| 810 | |
| 811 | for (i = 0; debug_levels[i].name; i++) { |
| 812 | dl = &debug_levels[i]; |
| 813 | if (!strncmp(opt, dl->name, strlen(opt))) { |
| 814 | log_info("fio: set debug option %s\n", opt); |
| 815 | found = 1; |
| 816 | fio_debug |= (1UL << dl->shift); |
| 817 | break; |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | if (!found) |
| 822 | log_err("fio: debug mask %s not found\n", opt); |
| 823 | } |
| 824 | } |
| 825 | #else |
| 826 | static void set_debug(const char *string) |
| 827 | { |
| 828 | log_err("fio: debug tracing not included in build\n"); |
| 829 | } |
| 830 | #endif |
| 831 | |
| 832 | static int parse_cmd_line(int argc, char *argv[]) |
| 833 | { |
| 834 | struct thread_data *td = NULL; |
| 835 | int c, ini_idx = 0, lidx, ret, dont_add_job = 0; |
| 836 | |
| 837 | while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) { |
| 838 | switch (c) { |
| 839 | case 't': |
| 840 | def_timeout = atoi(optarg); |
| 841 | break; |
| 842 | case 'l': |
| 843 | write_lat_log = 1; |
| 844 | break; |
| 845 | case 'w': |
| 846 | write_bw_log = 1; |
| 847 | break; |
| 848 | case 'o': |
| 849 | f_out = fopen(optarg, "w+"); |
| 850 | if (!f_out) { |
| 851 | perror("fopen output"); |
| 852 | exit(1); |
| 853 | } |
| 854 | f_err = f_out; |
| 855 | break; |
| 856 | case 'm': |
| 857 | terse_output = 1; |
| 858 | break; |
| 859 | case 'h': |
| 860 | usage(argv[0]); |
| 861 | exit(0); |
| 862 | case 'c': |
| 863 | exit(fio_show_option_help(optarg)); |
| 864 | case 's': |
| 865 | dump_cmdline = 1; |
| 866 | break; |
| 867 | case 'r': |
| 868 | read_only = 1; |
| 869 | break; |
| 870 | case 'v': |
| 871 | printf("%s\n", fio_version_string); |
| 872 | exit(0); |
| 873 | case 'e': |
| 874 | if (!strcmp("always", optarg)) |
| 875 | eta_print = FIO_ETA_ALWAYS; |
| 876 | else if (!strcmp("never", optarg)) |
| 877 | eta_print = FIO_ETA_NEVER; |
| 878 | break; |
| 879 | case 'd': |
| 880 | set_debug(optarg); |
| 881 | break; |
| 882 | case FIO_GETOPT_JOB: { |
| 883 | const char *opt = long_options[lidx].name; |
| 884 | char *val = optarg; |
| 885 | |
| 886 | if (!strncmp(opt, "name", 4) && td) { |
| 887 | ret = add_job(td, td->o.name ?: "fio", 0); |
| 888 | if (ret) { |
| 889 | put_job(td); |
| 890 | return 0; |
| 891 | } |
| 892 | td = NULL; |
| 893 | } |
| 894 | if (!td) { |
| 895 | int global = 0; |
| 896 | |
| 897 | if (strncmp(opt, "name", 4) || |
| 898 | !strncmp(val, "global", 6)) |
| 899 | global = 1; |
| 900 | |
| 901 | td = get_new_job(global, &def_thread); |
| 902 | if (!td) |
| 903 | return 0; |
| 904 | } |
| 905 | |
| 906 | ret = fio_cmd_option_parse(td, opt, val); |
| 907 | if (ret) |
| 908 | dont_add_job = 1; |
| 909 | break; |
| 910 | } |
| 911 | default: |
| 912 | break; |
| 913 | } |
| 914 | } |
| 915 | |
| 916 | if (td) { |
| 917 | if (dont_add_job) |
| 918 | put_job(td); |
| 919 | else { |
| 920 | ret = add_job(td, td->o.name ?: "fio", 0); |
| 921 | if (ret) |
| 922 | put_job(td); |
| 923 | } |
| 924 | } |
| 925 | |
| 926 | while (optind < argc) { |
| 927 | ini_idx++; |
| 928 | ini_file = realloc(ini_file, ini_idx * sizeof(char *)); |
| 929 | ini_file[ini_idx - 1] = strdup(argv[optind]); |
| 930 | optind++; |
| 931 | } |
| 932 | |
| 933 | return ini_idx; |
| 934 | } |
| 935 | |
| 936 | int parse_options(int argc, char *argv[]) |
| 937 | { |
| 938 | int job_files, i; |
| 939 | |
| 940 | f_out = stdout; |
| 941 | f_err = stderr; |
| 942 | |
| 943 | fio_options_dup_and_init(long_options); |
| 944 | |
| 945 | if (setup_thread_area()) |
| 946 | return 1; |
| 947 | if (fill_def_thread()) |
| 948 | return 1; |
| 949 | |
| 950 | job_files = parse_cmd_line(argc, argv); |
| 951 | |
| 952 | for (i = 0; i < job_files; i++) { |
| 953 | if (fill_def_thread()) |
| 954 | return 1; |
| 955 | if (parse_jobs_ini(ini_file[i], i)) |
| 956 | return 1; |
| 957 | free(ini_file[i]); |
| 958 | } |
| 959 | |
| 960 | free(ini_file); |
| 961 | options_mem_free(&def_thread); |
| 962 | |
| 963 | if (!thread_number) { |
| 964 | if (dump_cmdline) |
| 965 | return 0; |
| 966 | |
| 967 | log_err("No jobs defined(s)\n"); |
| 968 | usage(argv[0]); |
| 969 | return 1; |
| 970 | } |
| 971 | |
| 972 | return 0; |
| 973 | } |