| 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 | |
| 23 | #include "lib/getopt.h" |
| 24 | |
| 25 | static char fio_version_string[] = "fio 1.44.1"; |
| 26 | |
| 27 | #define FIO_RANDSEED (0xb1899bedUL) |
| 28 | |
| 29 | static char **ini_file; |
| 30 | static int max_jobs = MAX_JOBS; |
| 31 | static int dump_cmdline; |
| 32 | |
| 33 | static struct thread_data def_thread; |
| 34 | struct thread_data *threads = NULL; |
| 35 | |
| 36 | int exitall_on_terminate = 0; |
| 37 | int terse_output = 0; |
| 38 | int eta_print; |
| 39 | unsigned long long mlock_size = 0; |
| 40 | FILE *f_out = NULL; |
| 41 | FILE *f_err = NULL; |
| 42 | char *job_section = NULL; |
| 43 | char *exec_profile = NULL; |
| 44 | |
| 45 | int write_bw_log = 0; |
| 46 | int read_only = 0; |
| 47 | |
| 48 | static int def_timeout; |
| 49 | static int write_lat_log; |
| 50 | |
| 51 | static int prev_group_jobs; |
| 52 | |
| 53 | unsigned long fio_debug = 0; |
| 54 | unsigned int fio_debug_jobno = -1; |
| 55 | unsigned int *fio_debug_jobp = NULL; |
| 56 | |
| 57 | /* |
| 58 | * Command line options. These will contain the above, plus a few |
| 59 | * extra that only pertain to fio itself and not jobs. |
| 60 | */ |
| 61 | static struct option l_opts[FIO_NR_OPTIONS] = { |
| 62 | { |
| 63 | .name = "output", |
| 64 | .has_arg = required_argument, |
| 65 | .val = 'o', |
| 66 | }, |
| 67 | { |
| 68 | .name = "timeout", |
| 69 | .has_arg = required_argument, |
| 70 | .val = 't', |
| 71 | }, |
| 72 | { |
| 73 | .name = "latency-log", |
| 74 | .has_arg = required_argument, |
| 75 | .val = 'l', |
| 76 | }, |
| 77 | { |
| 78 | .name = "bandwidth-log", |
| 79 | .has_arg = required_argument, |
| 80 | .val = 'b', |
| 81 | }, |
| 82 | { |
| 83 | .name = "minimal", |
| 84 | .has_arg = optional_argument, |
| 85 | .val = 'm', |
| 86 | }, |
| 87 | { |
| 88 | .name = "version", |
| 89 | .has_arg = no_argument, |
| 90 | .val = 'v', |
| 91 | }, |
| 92 | { |
| 93 | .name = "help", |
| 94 | .has_arg = no_argument, |
| 95 | .val = 'h', |
| 96 | }, |
| 97 | { |
| 98 | .name = "cmdhelp", |
| 99 | .has_arg = optional_argument, |
| 100 | .val = 'c', |
| 101 | }, |
| 102 | { |
| 103 | .name = "showcmd", |
| 104 | .has_arg = no_argument, |
| 105 | .val = 's', |
| 106 | }, |
| 107 | { |
| 108 | .name = "readonly", |
| 109 | .has_arg = no_argument, |
| 110 | .val = 'r', |
| 111 | }, |
| 112 | { |
| 113 | .name = "eta", |
| 114 | .has_arg = required_argument, |
| 115 | .val = 'e', |
| 116 | }, |
| 117 | { |
| 118 | .name = "debug", |
| 119 | .has_arg = required_argument, |
| 120 | .val = 'd', |
| 121 | }, |
| 122 | { |
| 123 | .name = "section", |
| 124 | .has_arg = required_argument, |
| 125 | .val = 'x', |
| 126 | }, |
| 127 | { |
| 128 | .name = "alloc-size", |
| 129 | .has_arg = required_argument, |
| 130 | .val = 'a', |
| 131 | }, |
| 132 | { |
| 133 | .name = "profile", |
| 134 | .has_arg = required_argument, |
| 135 | .val = 'p', |
| 136 | }, |
| 137 | { |
| 138 | .name = NULL, |
| 139 | }, |
| 140 | }; |
| 141 | |
| 142 | FILE *get_f_out() |
| 143 | { |
| 144 | return f_out; |
| 145 | } |
| 146 | |
| 147 | FILE *get_f_err() |
| 148 | { |
| 149 | return f_err; |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | * Return a free job structure. |
| 154 | */ |
| 155 | static struct thread_data *get_new_job(int global, struct thread_data *parent) |
| 156 | { |
| 157 | struct thread_data *td; |
| 158 | |
| 159 | if (global) |
| 160 | return &def_thread; |
| 161 | if (thread_number >= max_jobs) |
| 162 | return NULL; |
| 163 | |
| 164 | td = &threads[thread_number++]; |
| 165 | *td = *parent; |
| 166 | |
| 167 | td->o.uid = td->o.gid = -1U; |
| 168 | |
| 169 | dup_files(td, parent); |
| 170 | options_mem_dupe(td); |
| 171 | |
| 172 | profile_add_hooks(td); |
| 173 | |
| 174 | td->thread_number = thread_number; |
| 175 | return td; |
| 176 | } |
| 177 | |
| 178 | static void put_job(struct thread_data *td) |
| 179 | { |
| 180 | if (td == &def_thread) |
| 181 | return; |
| 182 | |
| 183 | profile_td_exit(td); |
| 184 | |
| 185 | if (td->error) |
| 186 | log_info("fio: %s\n", td->verror); |
| 187 | |
| 188 | memset(&threads[td->thread_number - 1], 0, sizeof(*td)); |
| 189 | thread_number--; |
| 190 | } |
| 191 | |
| 192 | static int __setup_rate(struct thread_data *td, enum fio_ddir ddir) |
| 193 | { |
| 194 | unsigned int bs = td->o.min_bs[ddir]; |
| 195 | unsigned long long bytes_per_sec; |
| 196 | |
| 197 | assert(ddir_rw(ddir)); |
| 198 | |
| 199 | if (td->o.rate[ddir]) |
| 200 | bytes_per_sec = td->o.rate[ddir]; |
| 201 | else |
| 202 | bytes_per_sec = td->o.rate_iops[ddir] * bs; |
| 203 | |
| 204 | if (!bytes_per_sec) { |
| 205 | log_err("rate lower than supported\n"); |
| 206 | return -1; |
| 207 | } |
| 208 | |
| 209 | td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec; |
| 210 | td->rate_pending_usleep[ddir] = 0; |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | static int setup_rate(struct thread_data *td) |
| 215 | { |
| 216 | int ret = 0; |
| 217 | |
| 218 | if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ]) |
| 219 | ret = __setup_rate(td, DDIR_READ); |
| 220 | if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE]) |
| 221 | ret |= __setup_rate(td, DDIR_WRITE); |
| 222 | |
| 223 | return ret; |
| 224 | } |
| 225 | |
| 226 | static int fixed_block_size(struct thread_options *o) |
| 227 | { |
| 228 | return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] && |
| 229 | o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] && |
| 230 | o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE]; |
| 231 | } |
| 232 | |
| 233 | /* |
| 234 | * Lazy way of fixing up options that depend on each other. We could also |
| 235 | * define option callback handlers, but this is easier. |
| 236 | */ |
| 237 | static int fixup_options(struct thread_data *td) |
| 238 | { |
| 239 | struct thread_options *o = &td->o; |
| 240 | |
| 241 | #ifndef FIO_HAVE_PSHARED_MUTEX |
| 242 | if (!o->use_thread) { |
| 243 | log_info("fio: this platform does not support process shared" |
| 244 | " mutexes, forcing use of threads. Use the 'thread'" |
| 245 | " option to get rid of this warning.\n"); |
| 246 | o->use_thread = 1; |
| 247 | } |
| 248 | #endif |
| 249 | |
| 250 | if (o->write_iolog_file && o->read_iolog_file) { |
| 251 | log_err("fio: read iolog overrides write_iolog\n"); |
| 252 | free(o->write_iolog_file); |
| 253 | o->write_iolog_file = NULL; |
| 254 | } |
| 255 | |
| 256 | /* |
| 257 | * only really works for sequential io for now, and with 1 file |
| 258 | */ |
| 259 | if (o->zone_size && td_random(td) && o->open_files == 1) |
| 260 | o->zone_size = 0; |
| 261 | |
| 262 | /* |
| 263 | * Reads can do overwrites, we always need to pre-create the file |
| 264 | */ |
| 265 | if (td_read(td) || td_rw(td)) |
| 266 | o->overwrite = 1; |
| 267 | |
| 268 | if (!o->min_bs[DDIR_READ]) |
| 269 | o->min_bs[DDIR_READ] = o->bs[DDIR_READ]; |
| 270 | if (!o->max_bs[DDIR_READ]) |
| 271 | o->max_bs[DDIR_READ] = o->bs[DDIR_READ]; |
| 272 | if (!o->min_bs[DDIR_WRITE]) |
| 273 | o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; |
| 274 | if (!o->max_bs[DDIR_WRITE]) |
| 275 | o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE]; |
| 276 | |
| 277 | o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]); |
| 278 | |
| 279 | /* |
| 280 | * For random IO, allow blockalign offset other than min_bs. |
| 281 | */ |
| 282 | if (!o->ba[DDIR_READ] || !td_random(td)) |
| 283 | o->ba[DDIR_READ] = o->min_bs[DDIR_READ]; |
| 284 | if (!o->ba[DDIR_WRITE] || !td_random(td)) |
| 285 | o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE]; |
| 286 | |
| 287 | if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] || |
| 288 | o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) && |
| 289 | !o->norandommap) { |
| 290 | log_err("fio: Any use of blockalign= turns off randommap\n"); |
| 291 | o->norandommap = 1; |
| 292 | } |
| 293 | |
| 294 | if (!o->file_size_high) |
| 295 | o->file_size_high = o->file_size_low; |
| 296 | |
| 297 | if (o->norandommap && o->verify != VERIFY_NONE |
| 298 | && !fixed_block_size(o)) { |
| 299 | log_err("fio: norandommap given for variable block sizes, " |
| 300 | "verify disabled\n"); |
| 301 | o->verify = VERIFY_NONE; |
| 302 | } |
| 303 | if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO)) |
| 304 | log_err("fio: bs_unaligned may not work with raw io\n"); |
| 305 | |
| 306 | /* |
| 307 | * thinktime_spin must be less than thinktime |
| 308 | */ |
| 309 | if (o->thinktime_spin > o->thinktime) |
| 310 | o->thinktime_spin = o->thinktime; |
| 311 | |
| 312 | /* |
| 313 | * The low water mark cannot be bigger than the iodepth |
| 314 | */ |
| 315 | if (o->iodepth_low > o->iodepth || !o->iodepth_low) { |
| 316 | /* |
| 317 | * syslet work around - if the workload is sequential, |
| 318 | * we want to let the queue drain all the way down to |
| 319 | * avoid seeking between async threads |
| 320 | */ |
| 321 | if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td)) |
| 322 | o->iodepth_low = 1; |
| 323 | else |
| 324 | o->iodepth_low = o->iodepth; |
| 325 | } |
| 326 | |
| 327 | /* |
| 328 | * If batch number isn't set, default to the same as iodepth |
| 329 | */ |
| 330 | if (o->iodepth_batch > o->iodepth || !o->iodepth_batch) |
| 331 | o->iodepth_batch = o->iodepth; |
| 332 | |
| 333 | if (o->nr_files > td->files_index) |
| 334 | o->nr_files = td->files_index; |
| 335 | |
| 336 | if (o->open_files > o->nr_files || !o->open_files) |
| 337 | o->open_files = o->nr_files; |
| 338 | |
| 339 | if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))|| |
| 340 | ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] + |
| 341 | o->rate_iops_min[1]))) { |
| 342 | log_err("fio: rate and rate_iops are mutually exclusive\n"); |
| 343 | return 1; |
| 344 | } |
| 345 | if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) || |
| 346 | (o->rate_iops[0] < o->rate_iops_min[0]) || |
| 347 | (o->rate_iops[1] < o->rate_iops_min[1])) { |
| 348 | log_err("fio: minimum rate exceeds rate\n"); |
| 349 | return 1; |
| 350 | } |
| 351 | |
| 352 | if (!o->timeout && o->time_based) { |
| 353 | log_err("fio: time_based requires a runtime/timeout setting\n"); |
| 354 | o->time_based = 0; |
| 355 | } |
| 356 | |
| 357 | if (o->fill_device && !o->size) |
| 358 | o->size = -1ULL; |
| 359 | |
| 360 | if (td_rw(td) && o->verify != VERIFY_NONE) |
| 361 | log_info("fio: mixed read/write workload with verify. May not " |
| 362 | "work as expected, unless you pre-populated the file\n"); |
| 363 | |
| 364 | if (o->verify != VERIFY_NONE) { |
| 365 | o->refill_buffers = 1; |
| 366 | if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] && |
| 367 | !o->verify_interval) |
| 368 | o->verify_interval = o->min_bs[DDIR_WRITE]; |
| 369 | } |
| 370 | |
| 371 | if (o->pre_read) { |
| 372 | o->invalidate_cache = 0; |
| 373 | if (td->io_ops->flags & FIO_PIPEIO) |
| 374 | log_info("fio: cannot pre-read files with an IO engine" |
| 375 | " that isn't seekable. Pre-read disabled.\n"); |
| 376 | } |
| 377 | |
| 378 | #ifndef FIO_HAVE_FDATASYNC |
| 379 | if (o->fdatasync_blocks) { |
| 380 | log_info("fio: this platform does not support fdatasync()" |
| 381 | " falling back to using fsync(). Use the 'fsync'" |
| 382 | " option instead of 'fdatasync' to get rid of" |
| 383 | " this warning\n"); |
| 384 | o->fsync_blocks = o->fdatasync_blocks; |
| 385 | o->fdatasync_blocks = 0; |
| 386 | } |
| 387 | #endif |
| 388 | |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | /* |
| 393 | * This function leaks the buffer |
| 394 | */ |
| 395 | static char *to_kmg(unsigned int val) |
| 396 | { |
| 397 | char *buf = malloc(32); |
| 398 | char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 }; |
| 399 | char *p = post; |
| 400 | |
| 401 | do { |
| 402 | if (val & 1023) |
| 403 | break; |
| 404 | |
| 405 | val >>= 10; |
| 406 | p++; |
| 407 | } while (*p); |
| 408 | |
| 409 | snprintf(buf, 31, "%u%c", val, *p); |
| 410 | return buf; |
| 411 | } |
| 412 | |
| 413 | /* External engines are specified by "external:name.o") */ |
| 414 | static const char *get_engine_name(const char *str) |
| 415 | { |
| 416 | char *p = strstr(str, ":"); |
| 417 | |
| 418 | if (!p) |
| 419 | return str; |
| 420 | |
| 421 | p++; |
| 422 | strip_blank_front(&p); |
| 423 | strip_blank_end(p); |
| 424 | return p; |
| 425 | } |
| 426 | |
| 427 | static int exists_and_not_file(const char *filename) |
| 428 | { |
| 429 | struct stat sb; |
| 430 | |
| 431 | if (lstat(filename, &sb) == -1) |
| 432 | return 0; |
| 433 | |
| 434 | if (S_ISREG(sb.st_mode)) |
| 435 | return 0; |
| 436 | |
| 437 | return 1; |
| 438 | } |
| 439 | |
| 440 | void td_fill_rand_seeds(struct thread_data *td) |
| 441 | { |
| 442 | os_random_seed(td->rand_seeds[0], &td->bsrange_state); |
| 443 | os_random_seed(td->rand_seeds[1], &td->verify_state); |
| 444 | os_random_seed(td->rand_seeds[2], &td->rwmix_state); |
| 445 | |
| 446 | if (td->o.file_service_type == FIO_FSERVICE_RANDOM) |
| 447 | os_random_seed(td->rand_seeds[3], &td->next_file_state); |
| 448 | |
| 449 | os_random_seed(td->rand_seeds[5], &td->file_size_state); |
| 450 | os_random_seed(td->rand_seeds[6], &td->trim_state); |
| 451 | |
| 452 | if (!td_random(td)) |
| 453 | return; |
| 454 | |
| 455 | if (td->o.rand_repeatable) |
| 456 | td->rand_seeds[4] = FIO_RANDSEED * td->thread_number; |
| 457 | |
| 458 | os_random_seed(td->rand_seeds[4], &td->random_state); |
| 459 | } |
| 460 | |
| 461 | /* |
| 462 | * Initialize the various random states we need (random io, block size ranges, |
| 463 | * read/write mix, etc). |
| 464 | */ |
| 465 | static int init_random_state(struct thread_data *td) |
| 466 | { |
| 467 | int fd; |
| 468 | |
| 469 | fd = open("/dev/urandom", O_RDONLY); |
| 470 | if (fd == -1) { |
| 471 | td_verror(td, errno, "open"); |
| 472 | return 1; |
| 473 | } |
| 474 | |
| 475 | if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) < |
| 476 | (int) sizeof(td->rand_seeds)) { |
| 477 | td_verror(td, EIO, "read"); |
| 478 | close(fd); |
| 479 | return 1; |
| 480 | } |
| 481 | |
| 482 | close(fd); |
| 483 | td_fill_rand_seeds(td); |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | /* |
| 488 | * Adds a job to the list of things todo. Sanitizes the various options |
| 489 | * to make sure we don't have conflicts, and initializes various |
| 490 | * members of td. |
| 491 | */ |
| 492 | static int add_job(struct thread_data *td, const char *jobname, int job_add_num) |
| 493 | { |
| 494 | const char *ddir_str[] = { NULL, "read", "write", "rw", NULL, |
| 495 | "randread", "randwrite", "randrw" }; |
| 496 | unsigned int i; |
| 497 | const char *engine; |
| 498 | char fname[PATH_MAX]; |
| 499 | int numjobs, file_alloced; |
| 500 | |
| 501 | /* |
| 502 | * the def_thread is just for options, it's not a real job |
| 503 | */ |
| 504 | if (td == &def_thread) |
| 505 | return 0; |
| 506 | |
| 507 | /* |
| 508 | * if we are just dumping the output command line, don't add the job |
| 509 | */ |
| 510 | if (dump_cmdline) { |
| 511 | put_job(td); |
| 512 | return 0; |
| 513 | } |
| 514 | |
| 515 | if (profile_td_init(td)) |
| 516 | return 1; |
| 517 | |
| 518 | engine = get_engine_name(td->o.ioengine); |
| 519 | td->io_ops = load_ioengine(td, engine); |
| 520 | if (!td->io_ops) { |
| 521 | log_err("fio: failed to load engine %s\n", engine); |
| 522 | goto err; |
| 523 | } |
| 524 | |
| 525 | if (td->o.use_thread) |
| 526 | nr_thread++; |
| 527 | else |
| 528 | nr_process++; |
| 529 | |
| 530 | if (td->o.odirect) |
| 531 | td->io_ops->flags |= FIO_RAWIO; |
| 532 | |
| 533 | file_alloced = 0; |
| 534 | if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) { |
| 535 | file_alloced = 1; |
| 536 | |
| 537 | if (td->o.nr_files == 1 && exists_and_not_file(jobname)) |
| 538 | add_file(td, jobname); |
| 539 | else { |
| 540 | for (i = 0; i < td->o.nr_files; i++) { |
| 541 | sprintf(fname, "%s.%d.%d", jobname, |
| 542 | td->thread_number, i); |
| 543 | add_file(td, fname); |
| 544 | } |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | if (fixup_options(td)) |
| 549 | goto err; |
| 550 | |
| 551 | if (td->io_ops->flags & FIO_DISKLESSIO) { |
| 552 | struct fio_file *f; |
| 553 | |
| 554 | for_each_file(td, f, i) |
| 555 | f->real_file_size = -1ULL; |
| 556 | } |
| 557 | |
| 558 | td->mutex = fio_mutex_init(0); |
| 559 | |
| 560 | td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX; |
| 561 | td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX; |
| 562 | td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX; |
| 563 | td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX; |
| 564 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
| 565 | |
| 566 | if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) { |
| 567 | prev_group_jobs = 0; |
| 568 | groupid++; |
| 569 | } |
| 570 | |
| 571 | td->groupid = groupid; |
| 572 | prev_group_jobs++; |
| 573 | |
| 574 | if (init_random_state(td)) |
| 575 | goto err; |
| 576 | |
| 577 | if (setup_rate(td)) |
| 578 | goto err; |
| 579 | |
| 580 | if (td->o.write_lat_log) { |
| 581 | setup_log(&td->ts.lat_log); |
| 582 | setup_log(&td->ts.slat_log); |
| 583 | setup_log(&td->ts.clat_log); |
| 584 | } |
| 585 | if (td->o.write_bw_log) |
| 586 | setup_log(&td->ts.bw_log); |
| 587 | |
| 588 | if (!td->o.name) |
| 589 | td->o.name = strdup(jobname); |
| 590 | |
| 591 | if (!terse_output) { |
| 592 | if (!job_add_num) { |
| 593 | if (!strcmp(td->io_ops->name, "cpuio")) { |
| 594 | log_info("%s: ioengine=cpu, cpuload=%u," |
| 595 | " cpucycle=%u\n", td->o.name, |
| 596 | td->o.cpuload, |
| 597 | td->o.cpucycle); |
| 598 | } else { |
| 599 | char *c1, *c2, *c3, *c4; |
| 600 | |
| 601 | c1 = to_kmg(td->o.min_bs[DDIR_READ]); |
| 602 | c2 = to_kmg(td->o.max_bs[DDIR_READ]); |
| 603 | c3 = to_kmg(td->o.min_bs[DDIR_WRITE]); |
| 604 | c4 = to_kmg(td->o.max_bs[DDIR_WRITE]); |
| 605 | |
| 606 | log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s," |
| 607 | " ioengine=%s, iodepth=%u\n", |
| 608 | td->o.name, td->groupid, |
| 609 | ddir_str[td->o.td_ddir], |
| 610 | c1, c2, c3, c4, |
| 611 | td->io_ops->name, |
| 612 | td->o.iodepth); |
| 613 | |
| 614 | free(c1); |
| 615 | free(c2); |
| 616 | free(c3); |
| 617 | free(c4); |
| 618 | } |
| 619 | } else if (job_add_num == 1) |
| 620 | log_info("...\n"); |
| 621 | } |
| 622 | |
| 623 | /* |
| 624 | * recurse add identical jobs, clear numjobs and stonewall options |
| 625 | * as they don't apply to sub-jobs |
| 626 | */ |
| 627 | numjobs = td->o.numjobs; |
| 628 | while (--numjobs) { |
| 629 | struct thread_data *td_new = get_new_job(0, td); |
| 630 | |
| 631 | if (!td_new) |
| 632 | goto err; |
| 633 | |
| 634 | td_new->o.numjobs = 1; |
| 635 | td_new->o.stonewall = 0; |
| 636 | td_new->o.new_group = 0; |
| 637 | |
| 638 | if (file_alloced) { |
| 639 | td_new->o.filename = NULL; |
| 640 | td_new->files_index = 0; |
| 641 | td_new->files_size = 0; |
| 642 | td_new->files = NULL; |
| 643 | } |
| 644 | |
| 645 | job_add_num = numjobs - 1; |
| 646 | |
| 647 | if (add_job(td_new, jobname, job_add_num)) |
| 648 | goto err; |
| 649 | } |
| 650 | |
| 651 | return 0; |
| 652 | err: |
| 653 | put_job(td); |
| 654 | return -1; |
| 655 | } |
| 656 | |
| 657 | /* |
| 658 | * Parse as if 'o' was a command line |
| 659 | */ |
| 660 | void add_job_opts(const char **o) |
| 661 | { |
| 662 | struct thread_data *td, *td_parent; |
| 663 | int i, in_global = 1; |
| 664 | char jobname[32]; |
| 665 | |
| 666 | i = 0; |
| 667 | td_parent = td = NULL; |
| 668 | while (o[i]) { |
| 669 | if (!strncmp(o[i], "name", 4)) { |
| 670 | in_global = 0; |
| 671 | if (td) |
| 672 | add_job(td, jobname, 0); |
| 673 | td = NULL; |
| 674 | sprintf(jobname, "%s", o[i] + 5); |
| 675 | } |
| 676 | if (in_global && !td_parent) |
| 677 | td_parent = get_new_job(1, &def_thread); |
| 678 | else if (!in_global && !td) { |
| 679 | if (!td_parent) |
| 680 | td_parent = &def_thread; |
| 681 | td = get_new_job(0, td_parent); |
| 682 | } |
| 683 | if (in_global) |
| 684 | fio_options_parse(td_parent, (char **) &o[i], 1); |
| 685 | else |
| 686 | fio_options_parse(td, (char **) &o[i], 1); |
| 687 | i++; |
| 688 | } |
| 689 | |
| 690 | if (td) |
| 691 | add_job(td, jobname, 0); |
| 692 | } |
| 693 | |
| 694 | static int skip_this_section(const char *name) |
| 695 | { |
| 696 | if (!job_section) |
| 697 | return 0; |
| 698 | if (!strncmp(name, "global", 6)) |
| 699 | return 0; |
| 700 | |
| 701 | return strcmp(job_section, name); |
| 702 | } |
| 703 | |
| 704 | static int is_empty_or_comment(char *line) |
| 705 | { |
| 706 | unsigned int i; |
| 707 | |
| 708 | for (i = 0; i < strlen(line); i++) { |
| 709 | if (line[i] == ';') |
| 710 | return 1; |
| 711 | if (line[i] == '#') |
| 712 | return 1; |
| 713 | if (!isspace(line[i]) && !iscntrl(line[i])) |
| 714 | return 0; |
| 715 | } |
| 716 | |
| 717 | return 1; |
| 718 | } |
| 719 | |
| 720 | /* |
| 721 | * This is our [ini] type file parser. |
| 722 | */ |
| 723 | static int parse_jobs_ini(char *file, int stonewall_flag) |
| 724 | { |
| 725 | unsigned int global; |
| 726 | struct thread_data *td; |
| 727 | char *string, *name; |
| 728 | FILE *f; |
| 729 | char *p; |
| 730 | int ret = 0, stonewall; |
| 731 | int first_sect = 1; |
| 732 | int skip_fgets = 0; |
| 733 | int inside_skip = 0; |
| 734 | char **opts; |
| 735 | int i, alloc_opts, num_opts; |
| 736 | |
| 737 | if (!strcmp(file, "-")) |
| 738 | f = stdin; |
| 739 | else |
| 740 | f = fopen(file, "r"); |
| 741 | |
| 742 | if (!f) { |
| 743 | perror("fopen job file"); |
| 744 | return 1; |
| 745 | } |
| 746 | |
| 747 | string = malloc(4096); |
| 748 | |
| 749 | /* |
| 750 | * it's really 256 + small bit, 280 should suffice |
| 751 | */ |
| 752 | name = malloc(280); |
| 753 | memset(name, 0, 280); |
| 754 | |
| 755 | alloc_opts = 8; |
| 756 | opts = malloc(sizeof(char *) * alloc_opts); |
| 757 | num_opts = 0; |
| 758 | |
| 759 | stonewall = stonewall_flag; |
| 760 | do { |
| 761 | /* |
| 762 | * if skip_fgets is set, we already have loaded a line we |
| 763 | * haven't handled. |
| 764 | */ |
| 765 | if (!skip_fgets) { |
| 766 | p = fgets(string, 4095, f); |
| 767 | if (!p) |
| 768 | break; |
| 769 | } |
| 770 | |
| 771 | skip_fgets = 0; |
| 772 | strip_blank_front(&p); |
| 773 | strip_blank_end(p); |
| 774 | |
| 775 | if (is_empty_or_comment(p)) |
| 776 | continue; |
| 777 | if (sscanf(p, "[%255s]", name) != 1) { |
| 778 | if (inside_skip) |
| 779 | continue; |
| 780 | log_err("fio: option <%s> outside of [] job section\n", |
| 781 | p); |
| 782 | break; |
| 783 | } |
| 784 | |
| 785 | name[strlen(name) - 1] = '\0'; |
| 786 | |
| 787 | if (skip_this_section(name)) { |
| 788 | inside_skip = 1; |
| 789 | continue; |
| 790 | } else |
| 791 | inside_skip = 0; |
| 792 | |
| 793 | global = !strncmp(name, "global", 6); |
| 794 | |
| 795 | if (dump_cmdline) { |
| 796 | if (first_sect) |
| 797 | log_info("fio "); |
| 798 | if (!global) |
| 799 | log_info("--name=%s ", name); |
| 800 | first_sect = 0; |
| 801 | } |
| 802 | |
| 803 | td = get_new_job(global, &def_thread); |
| 804 | if (!td) { |
| 805 | ret = 1; |
| 806 | break; |
| 807 | } |
| 808 | |
| 809 | /* |
| 810 | * Seperate multiple job files by a stonewall |
| 811 | */ |
| 812 | if (!global && stonewall) { |
| 813 | td->o.stonewall = stonewall; |
| 814 | stonewall = 0; |
| 815 | } |
| 816 | |
| 817 | num_opts = 0; |
| 818 | memset(opts, 0, alloc_opts * sizeof(char *)); |
| 819 | |
| 820 | while ((p = fgets(string, 4096, f)) != NULL) { |
| 821 | if (is_empty_or_comment(p)) |
| 822 | continue; |
| 823 | |
| 824 | strip_blank_front(&p); |
| 825 | |
| 826 | /* |
| 827 | * new section, break out and make sure we don't |
| 828 | * fgets() a new line at the top. |
| 829 | */ |
| 830 | if (p[0] == '[') { |
| 831 | skip_fgets = 1; |
| 832 | break; |
| 833 | } |
| 834 | |
| 835 | strip_blank_end(p); |
| 836 | |
| 837 | if (num_opts == alloc_opts) { |
| 838 | alloc_opts <<= 1; |
| 839 | opts = realloc(opts, |
| 840 | alloc_opts * sizeof(char *)); |
| 841 | } |
| 842 | |
| 843 | opts[num_opts] = strdup(p); |
| 844 | num_opts++; |
| 845 | } |
| 846 | |
| 847 | ret = fio_options_parse(td, opts, num_opts); |
| 848 | if (!ret) { |
| 849 | if (dump_cmdline) |
| 850 | for (i = 0; i < num_opts; i++) |
| 851 | log_info("--%s ", opts[i]); |
| 852 | |
| 853 | ret = add_job(td, name, 0); |
| 854 | } else { |
| 855 | log_err("fio: job %s dropped\n", name); |
| 856 | put_job(td); |
| 857 | } |
| 858 | |
| 859 | for (i = 0; i < num_opts; i++) |
| 860 | free(opts[i]); |
| 861 | num_opts = 0; |
| 862 | } while (!ret); |
| 863 | |
| 864 | if (dump_cmdline) |
| 865 | log_info("\n"); |
| 866 | |
| 867 | for (i = 0; i < num_opts; i++) |
| 868 | free(opts[i]); |
| 869 | |
| 870 | free(string); |
| 871 | free(name); |
| 872 | free(opts); |
| 873 | if (f != stdin) |
| 874 | fclose(f); |
| 875 | return ret; |
| 876 | } |
| 877 | |
| 878 | static int fill_def_thread(void) |
| 879 | { |
| 880 | memset(&def_thread, 0, sizeof(def_thread)); |
| 881 | |
| 882 | fio_getaffinity(getpid(), &def_thread.o.cpumask); |
| 883 | |
| 884 | /* |
| 885 | * fill default options |
| 886 | */ |
| 887 | fio_fill_default_options(&def_thread); |
| 888 | |
| 889 | def_thread.o.timeout = def_timeout; |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | static void free_shm(void) |
| 894 | { |
| 895 | struct shmid_ds sbuf; |
| 896 | |
| 897 | if (threads) { |
| 898 | void *tp = threads; |
| 899 | |
| 900 | threads = NULL; |
| 901 | file_hash_exit(); |
| 902 | fio_debug_jobp = NULL; |
| 903 | shmdt(tp); |
| 904 | shmctl(shm_id, IPC_RMID, &sbuf); |
| 905 | } |
| 906 | |
| 907 | scleanup(); |
| 908 | } |
| 909 | |
| 910 | /* |
| 911 | * The thread area is shared between the main process and the job |
| 912 | * threads/processes. So setup a shared memory segment that will hold |
| 913 | * all the job info. We use the end of the region for keeping track of |
| 914 | * open files across jobs, for file sharing. |
| 915 | */ |
| 916 | static int setup_thread_area(void) |
| 917 | { |
| 918 | void *hash; |
| 919 | |
| 920 | /* |
| 921 | * 1024 is too much on some machines, scale max_jobs if |
| 922 | * we get a failure that looks like too large a shm segment |
| 923 | */ |
| 924 | do { |
| 925 | size_t size = max_jobs * sizeof(struct thread_data); |
| 926 | |
| 927 | size += file_hash_size; |
| 928 | size += sizeof(unsigned int); |
| 929 | |
| 930 | shm_id = shmget(0, size, IPC_CREAT | 0600); |
| 931 | if (shm_id != -1) |
| 932 | break; |
| 933 | if (errno != EINVAL) { |
| 934 | perror("shmget"); |
| 935 | break; |
| 936 | } |
| 937 | |
| 938 | max_jobs >>= 1; |
| 939 | } while (max_jobs); |
| 940 | |
| 941 | if (shm_id == -1) |
| 942 | return 1; |
| 943 | |
| 944 | threads = shmat(shm_id, NULL, 0); |
| 945 | if (threads == (void *) -1) { |
| 946 | perror("shmat"); |
| 947 | return 1; |
| 948 | } |
| 949 | |
| 950 | memset(threads, 0, max_jobs * sizeof(struct thread_data)); |
| 951 | hash = (void *) threads + max_jobs * sizeof(struct thread_data); |
| 952 | fio_debug_jobp = (void *) hash + file_hash_size; |
| 953 | *fio_debug_jobp = -1; |
| 954 | file_hash_init(hash); |
| 955 | atexit(free_shm); |
| 956 | return 0; |
| 957 | } |
| 958 | |
| 959 | static void usage(const char *name) |
| 960 | { |
| 961 | printf("%s\n", fio_version_string); |
| 962 | printf("%s [options] [job options] <job file(s)>\n", name); |
| 963 | printf("\t--debug=options\tEnable debug logging\n"); |
| 964 | printf("\t--output\tWrite output to file\n"); |
| 965 | printf("\t--timeout\tRuntime in seconds\n"); |
| 966 | printf("\t--latency-log\tGenerate per-job latency logs\n"); |
| 967 | printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n"); |
| 968 | printf("\t--minimal\tMinimal (terse) output\n"); |
| 969 | printf("\t--version\tPrint version info and exit\n"); |
| 970 | printf("\t--help\t\tPrint this page\n"); |
| 971 | printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of" |
| 972 | " them\n"); |
| 973 | printf("\t--showcmd\tTurn a job file into command line options\n"); |
| 974 | printf("\t--eta=when\tWhen ETA estimate should be printed\n"); |
| 975 | printf("\t \tMay be \"always\", \"never\" or \"auto\"\n"); |
| 976 | printf("\t--readonly\tTurn on safety read-only checks, preventing" |
| 977 | " writes\n"); |
| 978 | printf("\t--section=name\tOnly run specified section in job file\n"); |
| 979 | printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb" |
| 980 | " (def 1024)\n"); |
| 981 | printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>"); |
| 982 | printf("\n Jens Axboe <jaxboe@fusionio.com>\n"); |
| 983 | } |
| 984 | |
| 985 | #ifdef FIO_INC_DEBUG |
| 986 | struct debug_level debug_levels[] = { |
| 987 | { .name = "process", .shift = FD_PROCESS, }, |
| 988 | { .name = "file", .shift = FD_FILE, }, |
| 989 | { .name = "io", .shift = FD_IO, }, |
| 990 | { .name = "mem", .shift = FD_MEM, }, |
| 991 | { .name = "blktrace", .shift = FD_BLKTRACE }, |
| 992 | { .name = "verify", .shift = FD_VERIFY }, |
| 993 | { .name = "random", .shift = FD_RANDOM }, |
| 994 | { .name = "parse", .shift = FD_PARSE }, |
| 995 | { .name = "diskutil", .shift = FD_DISKUTIL }, |
| 996 | { .name = "job", .shift = FD_JOB }, |
| 997 | { .name = "mutex", .shift = FD_MUTEX }, |
| 998 | { .name = "profile", .shift = FD_PROFILE }, |
| 999 | { .name = "time", .shift = FD_TIME }, |
| 1000 | { .name = NULL, }, |
| 1001 | }; |
| 1002 | |
| 1003 | static int set_debug(const char *string) |
| 1004 | { |
| 1005 | struct debug_level *dl; |
| 1006 | char *p = (char *) string; |
| 1007 | char *opt; |
| 1008 | int i; |
| 1009 | |
| 1010 | if (!strcmp(string, "?") || !strcmp(string, "help")) { |
| 1011 | int i; |
| 1012 | |
| 1013 | log_info("fio: dumping debug options:"); |
| 1014 | for (i = 0; debug_levels[i].name; i++) { |
| 1015 | dl = &debug_levels[i]; |
| 1016 | log_info("%s,", dl->name); |
| 1017 | } |
| 1018 | log_info("all\n"); |
| 1019 | return 1; |
| 1020 | } |
| 1021 | |
| 1022 | while ((opt = strsep(&p, ",")) != NULL) { |
| 1023 | int found = 0; |
| 1024 | |
| 1025 | if (!strncmp(opt, "all", 3)) { |
| 1026 | log_info("fio: set all debug options\n"); |
| 1027 | fio_debug = ~0UL; |
| 1028 | continue; |
| 1029 | } |
| 1030 | |
| 1031 | for (i = 0; debug_levels[i].name; i++) { |
| 1032 | dl = &debug_levels[i]; |
| 1033 | found = !strncmp(opt, dl->name, strlen(dl->name)); |
| 1034 | if (!found) |
| 1035 | continue; |
| 1036 | |
| 1037 | if (dl->shift == FD_JOB) { |
| 1038 | opt = strchr(opt, ':'); |
| 1039 | if (!opt) { |
| 1040 | log_err("fio: missing job number\n"); |
| 1041 | break; |
| 1042 | } |
| 1043 | opt++; |
| 1044 | fio_debug_jobno = atoi(opt); |
| 1045 | log_info("fio: set debug jobno %d\n", |
| 1046 | fio_debug_jobno); |
| 1047 | } else { |
| 1048 | log_info("fio: set debug option %s\n", opt); |
| 1049 | fio_debug |= (1UL << dl->shift); |
| 1050 | } |
| 1051 | break; |
| 1052 | } |
| 1053 | |
| 1054 | if (!found) |
| 1055 | log_err("fio: debug mask %s not found\n", opt); |
| 1056 | } |
| 1057 | return 0; |
| 1058 | } |
| 1059 | #else |
| 1060 | static int set_debug(const char *string) |
| 1061 | { |
| 1062 | log_err("fio: debug tracing not included in build\n"); |
| 1063 | return 1; |
| 1064 | } |
| 1065 | #endif |
| 1066 | |
| 1067 | static int parse_cmd_line(int argc, char *argv[]) |
| 1068 | { |
| 1069 | struct thread_data *td = NULL; |
| 1070 | int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0; |
| 1071 | |
| 1072 | while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) { |
| 1073 | switch (c) { |
| 1074 | case 'a': |
| 1075 | smalloc_pool_size = atoi(optarg); |
| 1076 | break; |
| 1077 | case 't': |
| 1078 | def_timeout = atoi(optarg); |
| 1079 | break; |
| 1080 | case 'l': |
| 1081 | write_lat_log = 1; |
| 1082 | break; |
| 1083 | case 'b': |
| 1084 | write_bw_log = 1; |
| 1085 | break; |
| 1086 | case 'o': |
| 1087 | f_out = fopen(optarg, "w+"); |
| 1088 | if (!f_out) { |
| 1089 | perror("fopen output"); |
| 1090 | exit(1); |
| 1091 | } |
| 1092 | f_err = f_out; |
| 1093 | break; |
| 1094 | case 'm': |
| 1095 | terse_output = 1; |
| 1096 | break; |
| 1097 | case 'h': |
| 1098 | usage(argv[0]); |
| 1099 | exit(0); |
| 1100 | case 'c': |
| 1101 | exit(fio_show_option_help(optarg)); |
| 1102 | case 's': |
| 1103 | dump_cmdline = 1; |
| 1104 | break; |
| 1105 | case 'r': |
| 1106 | read_only = 1; |
| 1107 | break; |
| 1108 | case 'v': |
| 1109 | printf("%s\n", fio_version_string); |
| 1110 | exit(0); |
| 1111 | case 'e': |
| 1112 | if (!strcmp("always", optarg)) |
| 1113 | eta_print = FIO_ETA_ALWAYS; |
| 1114 | else if (!strcmp("never", optarg)) |
| 1115 | eta_print = FIO_ETA_NEVER; |
| 1116 | break; |
| 1117 | case 'd': |
| 1118 | if (set_debug(optarg)) |
| 1119 | do_exit++; |
| 1120 | break; |
| 1121 | case 'x': |
| 1122 | if (!strcmp(optarg, "global")) { |
| 1123 | log_err("fio: can't use global as only " |
| 1124 | "section\n"); |
| 1125 | do_exit++; |
| 1126 | exit_val = 1; |
| 1127 | break; |
| 1128 | } |
| 1129 | if (job_section) |
| 1130 | free(job_section); |
| 1131 | job_section = strdup(optarg); |
| 1132 | break; |
| 1133 | case 'p': |
| 1134 | exec_profile = strdup(optarg); |
| 1135 | break; |
| 1136 | case FIO_GETOPT_JOB: { |
| 1137 | const char *opt = l_opts[lidx].name; |
| 1138 | char *val = optarg; |
| 1139 | |
| 1140 | if (!strncmp(opt, "name", 4) && td) { |
| 1141 | ret = add_job(td, td->o.name ?: "fio", 0); |
| 1142 | if (ret) { |
| 1143 | put_job(td); |
| 1144 | return 0; |
| 1145 | } |
| 1146 | td = NULL; |
| 1147 | } |
| 1148 | if (!td) { |
| 1149 | int is_section = !strncmp(opt, "name", 4); |
| 1150 | int global = 0; |
| 1151 | |
| 1152 | if (!is_section || !strncmp(val, "global", 6)) |
| 1153 | global = 1; |
| 1154 | |
| 1155 | if (is_section && skip_this_section(val)) |
| 1156 | continue; |
| 1157 | |
| 1158 | td = get_new_job(global, &def_thread); |
| 1159 | if (!td) |
| 1160 | return 0; |
| 1161 | } |
| 1162 | |
| 1163 | ret = fio_cmd_option_parse(td, opt, val); |
| 1164 | break; |
| 1165 | } |
| 1166 | default: |
| 1167 | do_exit++; |
| 1168 | exit_val = 1; |
| 1169 | break; |
| 1170 | } |
| 1171 | } |
| 1172 | |
| 1173 | if (do_exit) |
| 1174 | exit(exit_val); |
| 1175 | |
| 1176 | if (td) { |
| 1177 | if (!ret) |
| 1178 | ret = add_job(td, td->o.name ?: "fio", 0); |
| 1179 | if (ret) |
| 1180 | put_job(td); |
| 1181 | } |
| 1182 | |
| 1183 | while (optind < argc) { |
| 1184 | ini_idx++; |
| 1185 | ini_file = realloc(ini_file, ini_idx * sizeof(char *)); |
| 1186 | ini_file[ini_idx - 1] = strdup(argv[optind]); |
| 1187 | optind++; |
| 1188 | } |
| 1189 | |
| 1190 | return ini_idx; |
| 1191 | } |
| 1192 | |
| 1193 | int parse_options(int argc, char *argv[]) |
| 1194 | { |
| 1195 | int job_files, i; |
| 1196 | |
| 1197 | f_out = stdout; |
| 1198 | f_err = stderr; |
| 1199 | |
| 1200 | fio_options_dup_and_init(l_opts); |
| 1201 | |
| 1202 | if (setup_thread_area()) |
| 1203 | return 1; |
| 1204 | if (fill_def_thread()) |
| 1205 | return 1; |
| 1206 | |
| 1207 | job_files = parse_cmd_line(argc, argv); |
| 1208 | |
| 1209 | for (i = 0; i < job_files; i++) { |
| 1210 | if (fill_def_thread()) |
| 1211 | return 1; |
| 1212 | if (parse_jobs_ini(ini_file[i], i)) |
| 1213 | return 1; |
| 1214 | free(ini_file[i]); |
| 1215 | } |
| 1216 | |
| 1217 | free(ini_file); |
| 1218 | options_mem_free(&def_thread); |
| 1219 | |
| 1220 | if (!thread_number) { |
| 1221 | if (dump_cmdline) |
| 1222 | return 0; |
| 1223 | if (exec_profile) |
| 1224 | return 0; |
| 1225 | |
| 1226 | log_err("No jobs defined(s)\n\n"); |
| 1227 | usage(argv[0]); |
| 1228 | return 1; |
| 1229 | } |
| 1230 | |
| 1231 | if (def_thread.o.gtod_offload) { |
| 1232 | fio_gtod_init(); |
| 1233 | fio_gtod_offload = 1; |
| 1234 | fio_gtod_cpu = def_thread.o.gtod_cpu; |
| 1235 | } |
| 1236 | |
| 1237 | return 0; |
| 1238 | } |