| | 1 | /* |
| | 2 | * fio - the flexible io tester |
| | 3 | * |
| | 4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> |
| | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
| | 6 | * |
| | 7 | * The license below covers all files distributed with fio unless otherwise |
| | 8 | * noted in the file itself. |
| | 9 | * |
| | 10 | * This program is free software; you can redistribute it and/or modify |
| | 11 | * it under the terms of the GNU General Public License version 2 as |
| | 12 | * published by the Free Software Foundation. |
| | 13 | * |
| | 14 | * This program is distributed in the hope that it will be useful, |
| | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 17 | * GNU General Public License for more details. |
| | 18 | * |
| | 19 | * You should have received a copy of the GNU General Public License |
| | 20 | * along with this program; if not, write to the Free Software |
| | 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| | 22 | * |
| | 23 | */ |
| | 24 | #include <unistd.h> |
| | 25 | #include <fcntl.h> |
| | 26 | #include <string.h> |
| | 27 | #include <signal.h> |
| | 28 | #include <time.h> |
| | 29 | #include <locale.h> |
| | 30 | #include <assert.h> |
| | 31 | #include <sys/stat.h> |
| | 32 | #include <sys/wait.h> |
| | 33 | #include <sys/ipc.h> |
| | 34 | #include <sys/shm.h> |
| | 35 | #include <sys/mman.h> |
| | 36 | |
| | 37 | #include "fio.h" |
| | 38 | |
| | 39 | unsigned long page_mask; |
| | 40 | unsigned long page_size; |
| | 41 | #define ALIGN(buf) \ |
| | 42 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
| | 43 | |
| | 44 | int groupid = 0; |
| | 45 | int thread_number = 0; |
| | 46 | int nr_process = 0; |
| | 47 | int nr_thread = 0; |
| | 48 | int shm_id = 0; |
| | 49 | int temp_stall_ts; |
| | 50 | |
| | 51 | static struct fio_sem *startup_sem; |
| | 52 | static volatile int fio_abort; |
| | 53 | static int exit_value; |
| | 54 | |
| | 55 | struct io_log *agg_io_log[2]; |
| | 56 | |
| | 57 | #define TERMINATE_ALL (-1) |
| | 58 | #define JOB_START_TIMEOUT (5 * 1000) |
| | 59 | |
| | 60 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
| | 61 | { |
| | 62 | td->runstate = runstate; |
| | 63 | } |
| | 64 | |
| | 65 | static void terminate_threads(int group_id) |
| | 66 | { |
| | 67 | struct thread_data *td; |
| | 68 | int i; |
| | 69 | |
| | 70 | for_each_td(td, i) { |
| | 71 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
| | 72 | if (td->runstate <= TD_RUNNING) |
| | 73 | kill(td->pid, SIGQUIT); |
| | 74 | td->terminate = 1; |
| | 75 | td->o.start_delay = 0; |
| | 76 | } |
| | 77 | } |
| | 78 | } |
| | 79 | |
| | 80 | static void sig_handler(int sig) |
| | 81 | { |
| | 82 | switch (sig) { |
| | 83 | case SIGALRM: |
| | 84 | update_io_ticks(); |
| | 85 | disk_util_timer_arm(); |
| | 86 | print_thread_status(); |
| | 87 | break; |
| | 88 | default: |
| | 89 | printf("\nfio: terminating on signal %d\n", sig); |
| | 90 | fflush(stdout); |
| | 91 | terminate_threads(TERMINATE_ALL); |
| | 92 | break; |
| | 93 | } |
| | 94 | } |
| | 95 | |
| | 96 | /* |
| | 97 | * Check if we are above the minimum rate given. |
| | 98 | */ |
| | 99 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
| | 100 | { |
| | 101 | unsigned long long bytes = 0; |
| | 102 | unsigned long iops = 0; |
| | 103 | unsigned long spent; |
| | 104 | unsigned long rate; |
| | 105 | |
| | 106 | /* |
| | 107 | * No minimum rate set, always ok |
| | 108 | */ |
| | 109 | if (!td->o.ratemin && !td->o.rate_iops_min) |
| | 110 | return 0; |
| | 111 | |
| | 112 | /* |
| | 113 | * allow a 2 second settle period in the beginning |
| | 114 | */ |
| | 115 | if (mtime_since(&td->start, now) < 2000) |
| | 116 | return 0; |
| | 117 | |
| | 118 | if (td_read(td)) { |
| | 119 | iops += td->io_blocks[DDIR_READ]; |
| | 120 | bytes += td->this_io_bytes[DDIR_READ]; |
| | 121 | } |
| | 122 | if (td_write(td)) { |
| | 123 | iops += td->io_blocks[DDIR_WRITE]; |
| | 124 | bytes += td->this_io_bytes[DDIR_WRITE]; |
| | 125 | } |
| | 126 | |
| | 127 | /* |
| | 128 | * if rate blocks is set, sample is running |
| | 129 | */ |
| | 130 | if (td->rate_bytes || td->rate_blocks) { |
| | 131 | spent = mtime_since(&td->lastrate, now); |
| | 132 | if (spent < td->o.ratecycle) |
| | 133 | return 0; |
| | 134 | |
| | 135 | if (td->o.rate) { |
| | 136 | /* |
| | 137 | * check bandwidth specified rate |
| | 138 | */ |
| | 139 | if (bytes < td->rate_bytes) { |
| | 140 | log_err("%s: min rate %u not met\n", td->o.name, td->o.ratemin); |
| | 141 | return 1; |
| | 142 | } else { |
| | 143 | rate = (bytes - td->rate_bytes) / spent; |
| | 144 | if (rate < td->o.ratemin || bytes < td->rate_bytes) { |
| | 145 | log_err("%s: min rate %u not met, got %luKiB/sec\n", td->o.name, td->o.ratemin, rate); |
| | 146 | return 1; |
| | 147 | } |
| | 148 | } |
| | 149 | } else { |
| | 150 | /* |
| | 151 | * checks iops specified rate |
| | 152 | */ |
| | 153 | if (iops < td->o.rate_iops) { |
| | 154 | log_err("%s: min iops rate %u not met\n", td->o.name, td->o.rate_iops); |
| | 155 | return 1; |
| | 156 | } else { |
| | 157 | rate = (iops - td->rate_blocks) / spent; |
| | 158 | if (rate < td->o.rate_iops_min || iops < td->rate_blocks) { |
| | 159 | log_err("%s: min iops rate %u not met, got %lu\n", td->o.name, td->o.rate_iops_min, rate); |
| | 160 | } |
| | 161 | } |
| | 162 | } |
| | 163 | } |
| | 164 | |
| | 165 | td->rate_bytes = bytes; |
| | 166 | td->rate_blocks = iops; |
| | 167 | memcpy(&td->lastrate, now, sizeof(*now)); |
| | 168 | return 0; |
| | 169 | } |
| | 170 | |
| | 171 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
| | 172 | { |
| | 173 | if (!td->o.timeout) |
| | 174 | return 0; |
| | 175 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
| | 176 | return 1; |
| | 177 | |
| | 178 | return 0; |
| | 179 | } |
| | 180 | |
| | 181 | /* |
| | 182 | * When job exits, we can cancel the in-flight IO if we are using async |
| | 183 | * io. Attempt to do so. |
| | 184 | */ |
| | 185 | static void cleanup_pending_aio(struct thread_data *td) |
| | 186 | { |
| | 187 | struct list_head *entry, *n; |
| | 188 | struct io_u *io_u; |
| | 189 | int r; |
| | 190 | |
| | 191 | /* |
| | 192 | * get immediately available events, if any |
| | 193 | */ |
| | 194 | r = io_u_queued_complete(td, 0); |
| | 195 | if (r < 0) |
| | 196 | return; |
| | 197 | |
| | 198 | /* |
| | 199 | * now cancel remaining active events |
| | 200 | */ |
| | 201 | if (td->io_ops->cancel) { |
| | 202 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
| | 203 | io_u = list_entry(entry, struct io_u, list); |
| | 204 | |
| | 205 | /* |
| | 206 | * if the io_u isn't in flight, then that generally |
| | 207 | * means someone leaked an io_u. complain but fix |
| | 208 | * it up, so we don't stall here. |
| | 209 | */ |
| | 210 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { |
| | 211 | log_err("fio: non-busy IO on busy list\n"); |
| | 212 | put_io_u(td, io_u); |
| | 213 | } else { |
| | 214 | r = td->io_ops->cancel(td, io_u); |
| | 215 | if (!r) |
| | 216 | put_io_u(td, io_u); |
| | 217 | } |
| | 218 | } |
| | 219 | } |
| | 220 | |
| | 221 | if (td->cur_depth) |
| | 222 | r = io_u_queued_complete(td, td->cur_depth); |
| | 223 | } |
| | 224 | |
| | 225 | /* |
| | 226 | * Helper to handle the final sync of a file. Works just like the normal |
| | 227 | * io path, just does everything sync. |
| | 228 | */ |
| | 229 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) |
| | 230 | { |
| | 231 | struct io_u *io_u = __get_io_u(td); |
| | 232 | int ret; |
| | 233 | |
| | 234 | if (!io_u) |
| | 235 | return 1; |
| | 236 | |
| | 237 | io_u->ddir = DDIR_SYNC; |
| | 238 | io_u->file = f; |
| | 239 | |
| | 240 | if (td_io_prep(td, io_u)) { |
| | 241 | put_io_u(td, io_u); |
| | 242 | return 1; |
| | 243 | } |
| | 244 | |
| | 245 | requeue: |
| | 246 | ret = td_io_queue(td, io_u); |
| | 247 | if (ret < 0) { |
| | 248 | td_verror(td, io_u->error, "td_io_queue"); |
| | 249 | put_io_u(td, io_u); |
| | 250 | return 1; |
| | 251 | } else if (ret == FIO_Q_QUEUED) { |
| | 252 | if (io_u_queued_complete(td, 1) < 0) |
| | 253 | return 1; |
| | 254 | } else if (ret == FIO_Q_COMPLETED) { |
| | 255 | if (io_u->error) { |
| | 256 | td_verror(td, io_u->error, "td_io_queue"); |
| | 257 | return 1; |
| | 258 | } |
| | 259 | |
| | 260 | if (io_u_sync_complete(td, io_u) < 0) |
| | 261 | return 1; |
| | 262 | } else if (ret == FIO_Q_BUSY) { |
| | 263 | if (td_io_commit(td)) |
| | 264 | return 1; |
| | 265 | goto requeue; |
| | 266 | } |
| | 267 | |
| | 268 | return 0; |
| | 269 | } |
| | 270 | |
| | 271 | /* |
| | 272 | * The main verify engine. Runs over the writes we previously submitted, |
| | 273 | * reads the blocks back in, and checks the crc/md5 of the data. |
| | 274 | */ |
| | 275 | static void do_verify(struct thread_data *td) |
| | 276 | { |
| | 277 | struct fio_file *f; |
| | 278 | struct io_u *io_u; |
| | 279 | int ret, min_events; |
| | 280 | unsigned int i; |
| | 281 | |
| | 282 | /* |
| | 283 | * sync io first and invalidate cache, to make sure we really |
| | 284 | * read from disk. |
| | 285 | */ |
| | 286 | for_each_file(td, f, i) { |
| | 287 | if (!(f->flags & FIO_FILE_OPEN)) |
| | 288 | continue; |
| | 289 | if (fio_io_sync(td, f)) |
| | 290 | break; |
| | 291 | if (file_invalidate_cache(td, f)) |
| | 292 | break; |
| | 293 | } |
| | 294 | |
| | 295 | if (td->error) |
| | 296 | return; |
| | 297 | |
| | 298 | td_set_runstate(td, TD_VERIFYING); |
| | 299 | |
| | 300 | io_u = NULL; |
| | 301 | while (!td->terminate) { |
| | 302 | int ret2; |
| | 303 | |
| | 304 | io_u = __get_io_u(td); |
| | 305 | if (!io_u) |
| | 306 | break; |
| | 307 | |
| | 308 | if (runtime_exceeded(td, &io_u->start_time)) { |
| | 309 | put_io_u(td, io_u); |
| | 310 | break; |
| | 311 | } |
| | 312 | |
| | 313 | if (get_next_verify(td, io_u)) { |
| | 314 | put_io_u(td, io_u); |
| | 315 | break; |
| | 316 | } |
| | 317 | |
| | 318 | if (td_io_prep(td, io_u)) { |
| | 319 | put_io_u(td, io_u); |
| | 320 | break; |
| | 321 | } |
| | 322 | |
| | 323 | io_u->end_io = verify_io_u; |
| | 324 | |
| | 325 | ret = td_io_queue(td, io_u); |
| | 326 | switch (ret) { |
| | 327 | case FIO_Q_COMPLETED: |
| | 328 | if (io_u->error) |
| | 329 | ret = -io_u->error; |
| | 330 | else if (io_u->resid) { |
| | 331 | int bytes = io_u->xfer_buflen - io_u->resid; |
| | 332 | struct fio_file *f = io_u->file; |
| | 333 | |
| | 334 | /* |
| | 335 | * zero read, fail |
| | 336 | */ |
| | 337 | if (!bytes) { |
| | 338 | td_verror(td, ENODATA, "full resid"); |
| | 339 | put_io_u(td, io_u); |
| | 340 | break; |
| | 341 | } |
| | 342 | |
| | 343 | io_u->xfer_buflen = io_u->resid; |
| | 344 | io_u->xfer_buf += bytes; |
| | 345 | io_u->offset += bytes; |
| | 346 | f->last_completed_pos = io_u->offset; |
| | 347 | |
| | 348 | td->ts.short_io_u[io_u->ddir]++; |
| | 349 | |
| | 350 | if (io_u->offset == f->real_file_size) |
| | 351 | goto sync_done; |
| | 352 | |
| | 353 | requeue_io_u(td, &io_u); |
| | 354 | } else { |
| | 355 | sync_done: |
| | 356 | ret = io_u_sync_complete(td, io_u); |
| | 357 | if (ret < 0) |
| | 358 | break; |
| | 359 | } |
| | 360 | continue; |
| | 361 | case FIO_Q_QUEUED: |
| | 362 | break; |
| | 363 | case FIO_Q_BUSY: |
| | 364 | requeue_io_u(td, &io_u); |
| | 365 | ret2 = td_io_commit(td); |
| | 366 | if (ret2 < 0) |
| | 367 | ret = ret2; |
| | 368 | break; |
| | 369 | default: |
| | 370 | assert(ret < 0); |
| | 371 | td_verror(td, -ret, "td_io_queue"); |
| | 372 | break; |
| | 373 | } |
| | 374 | |
| | 375 | if (ret < 0 || td->error) |
| | 376 | break; |
| | 377 | |
| | 378 | /* |
| | 379 | * if we can queue more, do so. but check if there are |
| | 380 | * completed io_u's first. |
| | 381 | */ |
| | 382 | min_events = 0; |
| | 383 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
| | 384 | min_events = 1; |
| | 385 | |
| | 386 | if (td->cur_depth > td->o.iodepth_low) |
| | 387 | min_events = td->cur_depth - td->o.iodepth_low; |
| | 388 | } |
| | 389 | |
| | 390 | /* |
| | 391 | * Reap required number of io units, if any, and do the |
| | 392 | * verification on them through the callback handler |
| | 393 | */ |
| | 394 | if (io_u_queued_complete(td, min_events) < 0) |
| | 395 | break; |
| | 396 | } |
| | 397 | |
| | 398 | if (!td->error) { |
| | 399 | min_events = td->cur_depth; |
| | 400 | |
| | 401 | if (min_events) |
| | 402 | ret = io_u_queued_complete(td, min_events); |
| | 403 | } else |
| | 404 | cleanup_pending_aio(td); |
| | 405 | |
| | 406 | td_set_runstate(td, TD_RUNNING); |
| | 407 | } |
| | 408 | |
| | 409 | /* |
| | 410 | * Main IO worker function. It retrieves io_u's to process and queues |
| | 411 | * and reaps them, checking for rate and errors along the way. |
| | 412 | */ |
| | 413 | static void do_io(struct thread_data *td) |
| | 414 | { |
| | 415 | struct timeval s; |
| | 416 | unsigned long usec; |
| | 417 | unsigned int i; |
| | 418 | int ret = 0; |
| | 419 | |
| | 420 | td_set_runstate(td, TD_RUNNING); |
| | 421 | |
| | 422 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
| | 423 | struct timeval comp_time; |
| | 424 | long bytes_done = 0; |
| | 425 | int min_evts = 0; |
| | 426 | struct io_u *io_u; |
| | 427 | int ret2; |
| | 428 | |
| | 429 | if (td->terminate) |
| | 430 | break; |
| | 431 | |
| | 432 | io_u = get_io_u(td); |
| | 433 | if (!io_u) |
| | 434 | break; |
| | 435 | |
| | 436 | memcpy(&s, &io_u->start_time, sizeof(s)); |
| | 437 | |
| | 438 | if (runtime_exceeded(td, &s)) { |
| | 439 | put_io_u(td, io_u); |
| | 440 | break; |
| | 441 | } |
| | 442 | |
| | 443 | ret = td_io_queue(td, io_u); |
| | 444 | switch (ret) { |
| | 445 | case FIO_Q_COMPLETED: |
| | 446 | if (io_u->error) |
| | 447 | ret = -io_u->error; |
| | 448 | else if (io_u->resid) { |
| | 449 | int bytes = io_u->xfer_buflen - io_u->resid; |
| | 450 | struct fio_file *f = io_u->file; |
| | 451 | |
| | 452 | /* |
| | 453 | * zero read, fail |
| | 454 | */ |
| | 455 | if (!bytes) { |
| | 456 | td_verror(td, ENODATA, "full resid"); |
| | 457 | put_io_u(td, io_u); |
| | 458 | break; |
| | 459 | } |
| | 460 | |
| | 461 | io_u->xfer_buflen = io_u->resid; |
| | 462 | io_u->xfer_buf += bytes; |
| | 463 | io_u->offset += bytes; |
| | 464 | f->last_completed_pos = io_u->offset; |
| | 465 | |
| | 466 | td->ts.short_io_u[io_u->ddir]++; |
| | 467 | |
| | 468 | if (io_u->offset == f->real_file_size) |
| | 469 | goto sync_done; |
| | 470 | |
| | 471 | requeue_io_u(td, &io_u); |
| | 472 | } else { |
| | 473 | sync_done: |
| | 474 | fio_gettime(&comp_time, NULL); |
| | 475 | bytes_done = io_u_sync_complete(td, io_u); |
| | 476 | if (bytes_done < 0) |
| | 477 | ret = bytes_done; |
| | 478 | } |
| | 479 | break; |
| | 480 | case FIO_Q_QUEUED: |
| | 481 | /* |
| | 482 | * if the engine doesn't have a commit hook, |
| | 483 | * the io_u is really queued. if it does have such |
| | 484 | * a hook, it has to call io_u_queued() itself. |
| | 485 | */ |
| | 486 | if (td->io_ops->commit == NULL) |
| | 487 | io_u_queued(td, io_u); |
| | 488 | break; |
| | 489 | case FIO_Q_BUSY: |
| | 490 | requeue_io_u(td, &io_u); |
| | 491 | ret2 = td_io_commit(td); |
| | 492 | if (ret2 < 0) |
| | 493 | ret = ret2; |
| | 494 | break; |
| | 495 | default: |
| | 496 | assert(ret < 0); |
| | 497 | put_io_u(td, io_u); |
| | 498 | break; |
| | 499 | } |
| | 500 | |
| | 501 | if (ret < 0 || td->error) |
| | 502 | break; |
| | 503 | |
| | 504 | /* |
| | 505 | * See if we need to complete some commands |
| | 506 | */ |
| | 507 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
| | 508 | min_evts = 0; |
| | 509 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
| | 510 | min_evts = 1; |
| | 511 | |
| | 512 | if (td->cur_depth > td->o.iodepth_low) |
| | 513 | min_evts = td->cur_depth - td->o.iodepth_low; |
| | 514 | } |
| | 515 | |
| | 516 | fio_gettime(&comp_time, NULL); |
| | 517 | bytes_done = io_u_queued_complete(td, min_evts); |
| | 518 | if (bytes_done < 0) |
| | 519 | break; |
| | 520 | } |
| | 521 | |
| | 522 | if (!bytes_done) |
| | 523 | continue; |
| | 524 | |
| | 525 | /* |
| | 526 | * the rate is batched for now, it should work for batches |
| | 527 | * of completions except the very first one which may look |
| | 528 | * a little bursty |
| | 529 | */ |
| | 530 | usec = utime_since(&s, &comp_time); |
| | 531 | |
| | 532 | rate_throttle(td, usec, bytes_done); |
| | 533 | |
| | 534 | if (check_min_rate(td, &comp_time)) { |
| | 535 | if (exitall_on_terminate) |
| | 536 | terminate_threads(td->groupid); |
| | 537 | td_verror(td, ENODATA, "check_min_rate"); |
| | 538 | break; |
| | 539 | } |
| | 540 | |
| | 541 | if (td->o.thinktime) { |
| | 542 | unsigned long long b; |
| | 543 | |
| | 544 | b = td->io_blocks[0] + td->io_blocks[1]; |
| | 545 | if (!(b % td->o.thinktime_blocks)) { |
| | 546 | int left; |
| | 547 | |
| | 548 | if (td->o.thinktime_spin) |
| | 549 | __usec_sleep(td->o.thinktime_spin); |
| | 550 | |
| | 551 | left = td->o.thinktime - td->o.thinktime_spin; |
| | 552 | if (left) |
| | 553 | usec_sleep(td, left); |
| | 554 | } |
| | 555 | } |
| | 556 | } |
| | 557 | |
| | 558 | if (!td->error) { |
| | 559 | struct fio_file *f; |
| | 560 | |
| | 561 | i = td->cur_depth; |
| | 562 | if (i) |
| | 563 | ret = io_u_queued_complete(td, i); |
| | 564 | |
| | 565 | if (should_fsync(td) && td->o.end_fsync) { |
| | 566 | td_set_runstate(td, TD_FSYNCING); |
| | 567 | |
| | 568 | for_each_file(td, f, i) { |
| | 569 | if (!(f->flags & FIO_FILE_OPEN)) |
| | 570 | continue; |
| | 571 | fio_io_sync(td, f); |
| | 572 | } |
| | 573 | } |
| | 574 | } else |
| | 575 | cleanup_pending_aio(td); |
| | 576 | } |
| | 577 | |
| | 578 | static void cleanup_io_u(struct thread_data *td) |
| | 579 | { |
| | 580 | struct list_head *entry, *n; |
| | 581 | struct io_u *io_u; |
| | 582 | |
| | 583 | list_for_each_safe(entry, n, &td->io_u_freelist) { |
| | 584 | io_u = list_entry(entry, struct io_u, list); |
| | 585 | |
| | 586 | list_del(&io_u->list); |
| | 587 | free(io_u); |
| | 588 | } |
| | 589 | |
| | 590 | free_io_mem(td); |
| | 591 | } |
| | 592 | |
| | 593 | /* |
| | 594 | * "randomly" fill the buffer contents |
| | 595 | */ |
| | 596 | static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs) |
| | 597 | { |
| | 598 | int *ptr = io_u->buf; |
| | 599 | |
| | 600 | if (!td->o.zero_buffers) { |
| | 601 | while ((void *) ptr - io_u->buf < max_bs) { |
| | 602 | *ptr = rand() * 0x9e370001; |
| | 603 | ptr++; |
| | 604 | } |
| | 605 | } else |
| | 606 | memset(ptr, 0, max_bs); |
| | 607 | } |
| | 608 | |
| | 609 | static int init_io_u(struct thread_data *td) |
| | 610 | { |
| | 611 | unsigned long long buf_size; |
| | 612 | struct io_u *io_u; |
| | 613 | unsigned int max_bs; |
| | 614 | int i, max_units; |
| | 615 | char *p; |
| | 616 | |
| | 617 | if (td->io_ops->flags & FIO_SYNCIO) |
| | 618 | max_units = 1; |
| | 619 | else |
| | 620 | max_units = td->o.iodepth; |
| | 621 | |
| | 622 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
| | 623 | buf_size = (unsigned long long) max_bs * (unsigned long long) max_units; |
| | 624 | buf_size += page_mask; |
| | 625 | if (buf_size != (size_t) buf_size) { |
| | 626 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); |
| | 627 | return 1; |
| | 628 | } |
| | 629 | |
| | 630 | td->orig_buffer_size = buf_size; |
| | 631 | |
| | 632 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) |
| | 633 | td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1); |
| | 634 | else if (td->orig_buffer_size & page_mask) |
| | 635 | td->orig_buffer_size = (td->orig_buffer_size + page_mask) & ~page_mask; |
| | 636 | |
| | 637 | if (allocate_io_mem(td)) |
| | 638 | return 1; |
| | 639 | |
| | 640 | p = ALIGN(td->orig_buffer); |
| | 641 | for (i = 0; i < max_units; i++) { |
| | 642 | io_u = malloc(sizeof(*io_u)); |
| | 643 | memset(io_u, 0, sizeof(*io_u)); |
| | 644 | INIT_LIST_HEAD(&io_u->list); |
| | 645 | |
| | 646 | io_u->buf = p + max_bs * i; |
| | 647 | |
| | 648 | if (td_write(td)) |
| | 649 | fill_io_buf(td, io_u, max_bs); |
| | 650 | |
| | 651 | io_u->index = i; |
| | 652 | io_u->flags = IO_U_F_FREE; |
| | 653 | list_add(&io_u->list, &td->io_u_freelist); |
| | 654 | } |
| | 655 | |
| | 656 | io_u_init_timeout(); |
| | 657 | |
| | 658 | return 0; |
| | 659 | } |
| | 660 | |
| | 661 | static int switch_ioscheduler(struct thread_data *td) |
| | 662 | { |
| | 663 | char tmp[256], tmp2[128]; |
| | 664 | FILE *f; |
| | 665 | int ret; |
| | 666 | |
| | 667 | if (td->io_ops->flags & FIO_DISKLESSIO) |
| | 668 | return 0; |
| | 669 | |
| | 670 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
| | 671 | |
| | 672 | f = fopen(tmp, "r+"); |
| | 673 | if (!f) { |
| | 674 | if (errno == ENOENT) { |
| | 675 | log_err("fio: os or kernel doesn't support IO scheduler switching\n"); |
| | 676 | return 0; |
| | 677 | } |
| | 678 | td_verror(td, errno, "fopen iosched"); |
| | 679 | return 1; |
| | 680 | } |
| | 681 | |
| | 682 | /* |
| | 683 | * Set io scheduler. |
| | 684 | */ |
| | 685 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
| | 686 | if (ferror(f) || ret != 1) { |
| | 687 | td_verror(td, errno, "fwrite"); |
| | 688 | fclose(f); |
| | 689 | return 1; |
| | 690 | } |
| | 691 | |
| | 692 | rewind(f); |
| | 693 | |
| | 694 | /* |
| | 695 | * Read back and check that the selected scheduler is now the default. |
| | 696 | */ |
| | 697 | ret = fread(tmp, 1, sizeof(tmp), f); |
| | 698 | if (ferror(f) || ret < 0) { |
| | 699 | td_verror(td, errno, "fread"); |
| | 700 | fclose(f); |
| | 701 | return 1; |
| | 702 | } |
| | 703 | |
| | 704 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
| | 705 | if (!strstr(tmp, tmp2)) { |
| | 706 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
| | 707 | td_verror(td, EINVAL, "iosched_switch"); |
| | 708 | fclose(f); |
| | 709 | return 1; |
| | 710 | } |
| | 711 | |
| | 712 | fclose(f); |
| | 713 | return 0; |
| | 714 | } |
| | 715 | |
| | 716 | static int clear_io_state(struct thread_data *td) |
| | 717 | { |
| | 718 | struct fio_file *f; |
| | 719 | unsigned int i; |
| | 720 | int ret; |
| | 721 | |
| | 722 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
| | 723 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
| | 724 | td->zone_bytes = 0; |
| | 725 | td->rate_bytes = 0; |
| | 726 | td->rate_blocks = 0; |
| | 727 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
| | 728 | |
| | 729 | td->last_was_sync = 0; |
| | 730 | |
| | 731 | for_each_file(td, f, i) |
| | 732 | td_io_close_file(td, f); |
| | 733 | |
| | 734 | ret = 0; |
| | 735 | for_each_file(td, f, i) { |
| | 736 | ret = td_io_open_file(td, f); |
| | 737 | if (ret) |
| | 738 | break; |
| | 739 | } |
| | 740 | |
| | 741 | return ret; |
| | 742 | } |
| | 743 | |
| | 744 | /* |
| | 745 | * Entry point for the thread based jobs. The process based jobs end up |
| | 746 | * here as well, after a little setup. |
| | 747 | */ |
| | 748 | static void *thread_main(void *data) |
| | 749 | { |
| | 750 | unsigned long long runtime[2]; |
| | 751 | struct thread_data *td = data; |
| | 752 | unsigned long elapsed; |
| | 753 | int clear_state; |
| | 754 | |
| | 755 | if (!td->o.use_thread) |
| | 756 | setsid(); |
| | 757 | |
| | 758 | td->pid = getpid(); |
| | 759 | |
| | 760 | INIT_LIST_HEAD(&td->io_u_freelist); |
| | 761 | INIT_LIST_HEAD(&td->io_u_busylist); |
| | 762 | INIT_LIST_HEAD(&td->io_u_requeues); |
| | 763 | INIT_LIST_HEAD(&td->io_log_list); |
| | 764 | INIT_LIST_HEAD(&td->io_hist_list); |
| | 765 | td->io_hist_tree = RB_ROOT; |
| | 766 | |
| | 767 | if (init_io_u(td)) |
| | 768 | goto err_sem; |
| | 769 | |
| | 770 | if (fio_setaffinity(td) == -1) { |
| | 771 | td_verror(td, errno, "cpu_set_affinity"); |
| | 772 | goto err_sem; |
| | 773 | } |
| | 774 | |
| | 775 | if (init_iolog(td)) |
| | 776 | goto err_sem; |
| | 777 | |
| | 778 | if (td->ioprio) { |
| | 779 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
| | 780 | td_verror(td, errno, "ioprio_set"); |
| | 781 | goto err_sem; |
| | 782 | } |
| | 783 | } |
| | 784 | |
| | 785 | if (nice(td->o.nice) == -1) { |
| | 786 | td_verror(td, errno, "nice"); |
| | 787 | goto err_sem; |
| | 788 | } |
| | 789 | |
| | 790 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
| | 791 | goto err_sem; |
| | 792 | |
| | 793 | td_set_runstate(td, TD_INITIALIZED); |
| | 794 | fio_sem_up(startup_sem); |
| | 795 | fio_sem_down(td->mutex); |
| | 796 | |
| | 797 | /* |
| | 798 | * the ->mutex semaphore is now no longer used, close it to avoid |
| | 799 | * eating a file descriptor |
| | 800 | */ |
| | 801 | fio_sem_remove(td->mutex); |
| | 802 | |
| | 803 | if (!td->o.create_serialize && setup_files(td)) |
| | 804 | goto err; |
| | 805 | |
| | 806 | if (td_io_init(td)) |
| | 807 | goto err; |
| | 808 | |
| | 809 | if (open_files(td)) |
| | 810 | goto err; |
| | 811 | |
| | 812 | if (init_random_map(td)) |
| | 813 | goto err; |
| | 814 | |
| | 815 | if (td->o.exec_prerun) { |
| | 816 | if (system(td->o.exec_prerun) < 0) |
| | 817 | goto err; |
| | 818 | } |
| | 819 | |
| | 820 | fio_gettime(&td->epoch, NULL); |
| | 821 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
| | 822 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
| | 823 | |
| | 824 | runtime[0] = runtime[1] = 0; |
| | 825 | clear_state = 0; |
| | 826 | while (td->o.loops--) { |
| | 827 | fio_gettime(&td->start, NULL); |
| | 828 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
| | 829 | |
| | 830 | if (td->o.ratemin) |
| | 831 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
| | 832 | |
| | 833 | if (clear_state && clear_io_state(td)) |
| | 834 | break; |
| | 835 | |
| | 836 | prune_io_piece_log(td); |
| | 837 | |
| | 838 | do_io(td); |
| | 839 | |
| | 840 | clear_state = 1; |
| | 841 | |
| | 842 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
| | 843 | if (td->rw_end_set[DDIR_READ]) |
| | 844 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_READ]); |
| | 845 | else |
| | 846 | elapsed = utime_since_now(&td->start); |
| | 847 | |
| | 848 | runtime[DDIR_READ] += elapsed; |
| | 849 | } |
| | 850 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { |
| | 851 | if (td->rw_end_set[DDIR_WRITE]) |
| | 852 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_WRITE]); |
| | 853 | else |
| | 854 | elapsed = utime_since_now(&td->start); |
| | 855 | |
| | 856 | runtime[DDIR_WRITE] += elapsed; |
| | 857 | } |
| | 858 | |
| | 859 | if (td->error || td->terminate) |
| | 860 | break; |
| | 861 | |
| | 862 | if (td->o.verify == VERIFY_NONE) |
| | 863 | continue; |
| | 864 | |
| | 865 | if (clear_io_state(td)) |
| | 866 | break; |
| | 867 | |
| | 868 | fio_gettime(&td->start, NULL); |
| | 869 | |
| | 870 | do_verify(td); |
| | 871 | |
| | 872 | runtime[DDIR_READ] += utime_since_now(&td->start); |
| | 873 | |
| | 874 | if (td->error || td->terminate) |
| | 875 | break; |
| | 876 | } |
| | 877 | |
| | 878 | update_rusage_stat(td); |
| | 879 | td->ts.runtime[0] = runtime[0] / 1000; |
| | 880 | td->ts.runtime[1] = runtime[1] / 1000; |
| | 881 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
| | 882 | td->ts.io_bytes[0] = td->io_bytes[0]; |
| | 883 | td->ts.io_bytes[1] = td->io_bytes[1]; |
| | 884 | |
| | 885 | if (td->ts.bw_log) |
| | 886 | finish_log(td, td->ts.bw_log, "bw"); |
| | 887 | if (td->ts.slat_log) |
| | 888 | finish_log(td, td->ts.slat_log, "slat"); |
| | 889 | if (td->ts.clat_log) |
| | 890 | finish_log(td, td->ts.clat_log, "clat"); |
| | 891 | if (td->o.write_iolog_file) |
| | 892 | write_iolog_close(td); |
| | 893 | if (td->o.exec_postrun) { |
| | 894 | if (system(td->o.exec_postrun) < 0) |
| | 895 | log_err("fio: postrun %s failed\n", td->o.exec_postrun); |
| | 896 | } |
| | 897 | |
| | 898 | if (exitall_on_terminate) |
| | 899 | terminate_threads(td->groupid); |
| | 900 | |
| | 901 | err: |
| | 902 | if (td->error) |
| | 903 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); |
| | 904 | close_files(td); |
| | 905 | close_ioengine(td); |
| | 906 | cleanup_io_u(td); |
| | 907 | options_mem_free(td); |
| | 908 | td_set_runstate(td, TD_EXITED); |
| | 909 | return (void *) (unsigned long) td->error; |
| | 910 | err_sem: |
| | 911 | fio_sem_up(startup_sem); |
| | 912 | goto err; |
| | 913 | } |
| | 914 | |
| | 915 | /* |
| | 916 | * We cannot pass the td data into a forked process, so attach the td and |
| | 917 | * pass it to the thread worker. |
| | 918 | */ |
| | 919 | static int fork_main(int shmid, int offset) |
| | 920 | { |
| | 921 | struct thread_data *td; |
| | 922 | void *data, *ret; |
| | 923 | |
| | 924 | data = shmat(shmid, NULL, 0); |
| | 925 | if (data == (void *) -1) { |
| | 926 | int __err = errno; |
| | 927 | |
| | 928 | perror("shmat"); |
| | 929 | return __err; |
| | 930 | } |
| | 931 | |
| | 932 | td = data + offset * sizeof(struct thread_data); |
| | 933 | ret = thread_main(td); |
| | 934 | shmdt(data); |
| | 935 | return (int) (unsigned long) ret; |
| | 936 | } |
| | 937 | |
| | 938 | /* |
| | 939 | * Run over the job map and reap the threads that have exited, if any. |
| | 940 | */ |
| | 941 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
| | 942 | { |
| | 943 | struct thread_data *td; |
| | 944 | int i, cputhreads, pending, status, ret; |
| | 945 | |
| | 946 | /* |
| | 947 | * reap exited threads (TD_EXITED -> TD_REAPED) |
| | 948 | */ |
| | 949 | pending = cputhreads = 0; |
| | 950 | for_each_td(td, i) { |
| | 951 | int flags = 0; |
| | 952 | |
| | 953 | /* |
| | 954 | * ->io_ops is NULL for a thread that has closed its |
| | 955 | * io engine |
| | 956 | */ |
| | 957 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
| | 958 | cputhreads++; |
| | 959 | |
| | 960 | if (!td->pid || td->runstate == TD_REAPED) |
| | 961 | continue; |
| | 962 | if (td->o.use_thread) { |
| | 963 | if (td->runstate == TD_EXITED) { |
| | 964 | td_set_runstate(td, TD_REAPED); |
| | 965 | goto reaped; |
| | 966 | } |
| | 967 | continue; |
| | 968 | } |
| | 969 | |
| | 970 | flags = WNOHANG; |
| | 971 | if (td->runstate == TD_EXITED) |
| | 972 | flags = 0; |
| | 973 | |
| | 974 | /* |
| | 975 | * check if someone quit or got killed in an unusual way |
| | 976 | */ |
| | 977 | ret = waitpid(td->pid, &status, flags); |
| | 978 | if (ret < 0) { |
| | 979 | if (errno == ECHILD) { |
| | 980 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); |
| | 981 | td_set_runstate(td, TD_REAPED); |
| | 982 | goto reaped; |
| | 983 | } |
| | 984 | perror("waitpid"); |
| | 985 | } else if (ret == td->pid) { |
| | 986 | if (WIFSIGNALED(status)) { |
| | 987 | int sig = WTERMSIG(status); |
| | 988 | |
| | 989 | if (sig != SIGQUIT) |
| | 990 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); |
| | 991 | td_set_runstate(td, TD_REAPED); |
| | 992 | goto reaped; |
| | 993 | } |
| | 994 | if (WIFEXITED(status)) { |
| | 995 | if (WEXITSTATUS(status) && !td->error) |
| | 996 | td->error = WEXITSTATUS(status); |
| | 997 | |
| | 998 | td_set_runstate(td, TD_REAPED); |
| | 999 | goto reaped; |
| | 1000 | } |
| | 1001 | } |
| | 1002 | |
| | 1003 | /* |
| | 1004 | * thread is not dead, continue |
| | 1005 | */ |
| | 1006 | pending++; |
| | 1007 | continue; |
| | 1008 | reaped: |
| | 1009 | if (td->o.use_thread) { |
| | 1010 | long ret; |
| | 1011 | |
| | 1012 | if (pthread_join(td->thread, (void *) &ret)) |
| | 1013 | perror("pthread_join"); |
| | 1014 | } |
| | 1015 | |
| | 1016 | (*nr_running)--; |
| | 1017 | (*m_rate) -= td->o.ratemin; |
| | 1018 | (*t_rate) -= td->o.rate; |
| | 1019 | pending--; |
| | 1020 | |
| | 1021 | if (td->error) |
| | 1022 | exit_value++; |
| | 1023 | } |
| | 1024 | |
| | 1025 | if (*nr_running == cputhreads && !pending) |
| | 1026 | terminate_threads(TERMINATE_ALL); |
| | 1027 | } |
| | 1028 | |
| | 1029 | /* |
| | 1030 | * Main function for kicking off and reaping jobs, as needed. |
| | 1031 | */ |
| | 1032 | static void run_threads(void) |
| | 1033 | { |
| | 1034 | struct thread_data *td; |
| | 1035 | unsigned long spent; |
| | 1036 | int i, todo, nr_running, m_rate, t_rate, nr_started; |
| | 1037 | |
| | 1038 | if (fio_pin_memory()) |
| | 1039 | return; |
| | 1040 | |
| | 1041 | if (!terse_output) { |
| | 1042 | printf("Starting "); |
| | 1043 | if (nr_thread) |
| | 1044 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); |
| | 1045 | if (nr_process) { |
| | 1046 | if (nr_thread) |
| | 1047 | printf(" and "); |
| | 1048 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); |
| | 1049 | } |
| | 1050 | printf("\n"); |
| | 1051 | fflush(stdout); |
| | 1052 | } |
| | 1053 | |
| | 1054 | signal(SIGINT, sig_handler); |
| | 1055 | signal(SIGALRM, sig_handler); |
| | 1056 | |
| | 1057 | todo = thread_number; |
| | 1058 | nr_running = 0; |
| | 1059 | nr_started = 0; |
| | 1060 | m_rate = t_rate = 0; |
| | 1061 | |
| | 1062 | for_each_td(td, i) { |
| | 1063 | print_status_init(td->thread_number - 1); |
| | 1064 | |
| | 1065 | if (!td->o.create_serialize) { |
| | 1066 | init_disk_util(td); |
| | 1067 | continue; |
| | 1068 | } |
| | 1069 | |
| | 1070 | /* |
| | 1071 | * do file setup here so it happens sequentially, |
| | 1072 | * we don't want X number of threads getting their |
| | 1073 | * client data interspersed on disk |
| | 1074 | */ |
| | 1075 | if (setup_files(td)) { |
| | 1076 | exit_value++; |
| | 1077 | if (td->error) |
| | 1078 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); |
| | 1079 | td_set_runstate(td, TD_REAPED); |
| | 1080 | todo--; |
| | 1081 | } |
| | 1082 | |
| | 1083 | init_disk_util(td); |
| | 1084 | } |
| | 1085 | |
| | 1086 | set_genesis_time(); |
| | 1087 | |
| | 1088 | while (todo) { |
| | 1089 | struct thread_data *map[MAX_JOBS]; |
| | 1090 | struct timeval this_start; |
| | 1091 | int this_jobs = 0, left; |
| | 1092 | |
| | 1093 | /* |
| | 1094 | * create threads (TD_NOT_CREATED -> TD_CREATED) |
| | 1095 | */ |
| | 1096 | for_each_td(td, i) { |
| | 1097 | if (td->runstate != TD_NOT_CREATED) |
| | 1098 | continue; |
| | 1099 | |
| | 1100 | /* |
| | 1101 | * never got a chance to start, killed by other |
| | 1102 | * thread for some reason |
| | 1103 | */ |
| | 1104 | if (td->terminate) { |
| | 1105 | todo--; |
| | 1106 | continue; |
| | 1107 | } |
| | 1108 | |
| | 1109 | if (td->o.start_delay) { |
| | 1110 | spent = mtime_since_genesis(); |
| | 1111 | |
| | 1112 | if (td->o.start_delay * 1000 > spent) |
| | 1113 | continue; |
| | 1114 | } |
| | 1115 | |
| | 1116 | if (td->o.stonewall && (nr_started || nr_running)) |
| | 1117 | break; |
| | 1118 | |
| | 1119 | /* |
| | 1120 | * Set state to created. Thread will transition |
| | 1121 | * to TD_INITIALIZED when it's done setting up. |
| | 1122 | */ |
| | 1123 | td_set_runstate(td, TD_CREATED); |
| | 1124 | map[this_jobs++] = td; |
| | 1125 | nr_started++; |
| | 1126 | |
| | 1127 | if (td->o.use_thread) { |
| | 1128 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
| | 1129 | perror("thread_create"); |
| | 1130 | nr_started--; |
| | 1131 | break; |
| | 1132 | } |
| | 1133 | } else { |
| | 1134 | if (!fork()) { |
| | 1135 | int ret = fork_main(shm_id, i); |
| | 1136 | |
| | 1137 | exit(ret); |
| | 1138 | } |
| | 1139 | } |
| | 1140 | fio_sem_down(startup_sem); |
| | 1141 | } |
| | 1142 | |
| | 1143 | /* |
| | 1144 | * Wait for the started threads to transition to |
| | 1145 | * TD_INITIALIZED. |
| | 1146 | */ |
| | 1147 | fio_gettime(&this_start, NULL); |
| | 1148 | left = this_jobs; |
| | 1149 | while (left && !fio_abort) { |
| | 1150 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
| | 1151 | break; |
| | 1152 | |
| | 1153 | usleep(100000); |
| | 1154 | |
| | 1155 | for (i = 0; i < this_jobs; i++) { |
| | 1156 | td = map[i]; |
| | 1157 | if (!td) |
| | 1158 | continue; |
| | 1159 | if (td->runstate == TD_INITIALIZED) { |
| | 1160 | map[i] = NULL; |
| | 1161 | left--; |
| | 1162 | } else if (td->runstate >= TD_EXITED) { |
| | 1163 | map[i] = NULL; |
| | 1164 | left--; |
| | 1165 | todo--; |
| | 1166 | nr_running++; /* work-around... */ |
| | 1167 | } |
| | 1168 | } |
| | 1169 | } |
| | 1170 | |
| | 1171 | if (left) { |
| | 1172 | log_err("fio: %d jobs failed to start\n", left); |
| | 1173 | for (i = 0; i < this_jobs; i++) { |
| | 1174 | td = map[i]; |
| | 1175 | if (!td) |
| | 1176 | continue; |
| | 1177 | kill(td->pid, SIGTERM); |
| | 1178 | } |
| | 1179 | break; |
| | 1180 | } |
| | 1181 | |
| | 1182 | /* |
| | 1183 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
| | 1184 | */ |
| | 1185 | for_each_td(td, i) { |
| | 1186 | if (td->runstate != TD_INITIALIZED) |
| | 1187 | continue; |
| | 1188 | |
| | 1189 | td_set_runstate(td, TD_RUNNING); |
| | 1190 | nr_running++; |
| | 1191 | nr_started--; |
| | 1192 | m_rate += td->o.ratemin; |
| | 1193 | t_rate += td->o.rate; |
| | 1194 | todo--; |
| | 1195 | fio_sem_up(td->mutex); |
| | 1196 | } |
| | 1197 | |
| | 1198 | reap_threads(&nr_running, &t_rate, &m_rate); |
| | 1199 | |
| | 1200 | if (todo) |
| | 1201 | usleep(100000); |
| | 1202 | } |
| | 1203 | |
| | 1204 | while (nr_running) { |
| | 1205 | reap_threads(&nr_running, &t_rate, &m_rate); |
| | 1206 | usleep(10000); |
| | 1207 | } |
| | 1208 | |
| | 1209 | update_io_ticks(); |
| | 1210 | fio_unpin_memory(); |
| | 1211 | } |
| | 1212 | |
| | 1213 | int main(int argc, char *argv[]) |
| | 1214 | { |
| | 1215 | long ps; |
| | 1216 | |
| | 1217 | /* |
| | 1218 | * We need locale for number printing, if it isn't set then just |
| | 1219 | * go with the US format. |
| | 1220 | */ |
| | 1221 | if (!getenv("LC_NUMERIC")) |
| | 1222 | setlocale(LC_NUMERIC, "en_US"); |
| | 1223 | |
| | 1224 | if (parse_options(argc, argv)) |
| | 1225 | return 1; |
| | 1226 | |
| | 1227 | if (!thread_number) |
| | 1228 | return 0; |
| | 1229 | |
| | 1230 | ps = sysconf(_SC_PAGESIZE); |
| | 1231 | if (ps < 0) { |
| | 1232 | log_err("Failed to get page size\n"); |
| | 1233 | return 1; |
| | 1234 | } |
| | 1235 | |
| | 1236 | page_size = ps; |
| | 1237 | page_mask = ps - 1; |
| | 1238 | |
| | 1239 | if (write_bw_log) { |
| | 1240 | setup_log(&agg_io_log[DDIR_READ]); |
| | 1241 | setup_log(&agg_io_log[DDIR_WRITE]); |
| | 1242 | } |
| | 1243 | |
| | 1244 | startup_sem = fio_sem_init(0); |
| | 1245 | |
| | 1246 | set_genesis_time(); |
| | 1247 | |
| | 1248 | disk_util_timer_arm(); |
| | 1249 | |
| | 1250 | run_threads(); |
| | 1251 | |
| | 1252 | if (!fio_abort) { |
| | 1253 | show_run_stats(); |
| | 1254 | if (write_bw_log) { |
| | 1255 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); |
| | 1256 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); |
| | 1257 | } |
| | 1258 | } |
| | 1259 | |
| | 1260 | fio_sem_remove(startup_sem); |
| | 1261 | return exit_value; |
| | 1262 | } |
projects / fio.git / blame_incremental