Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1 | /* |
| 2 | * fio - the flexible io tester |
| 3 | * |
| 4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> |
| 5 | * Copyright (C) 2006-2012 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 <limits.h> |
| 28 | #include <signal.h> |
| 29 | #include <time.h> |
| 30 | #include <locale.h> |
| 31 | #include <assert.h> |
| 32 | #include <time.h> |
Bruce Cran | e43606c | 2012-02-20 09:34:24 +0100 | [diff] [blame] | 33 | #include <inttypes.h> |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 34 | #include <sys/stat.h> |
| 35 | #include <sys/wait.h> |
| 36 | #include <sys/ipc.h> |
| 37 | #include <sys/shm.h> |
| 38 | #include <sys/mman.h> |
| 39 | |
| 40 | #include "fio.h" |
| 41 | #include "hash.h" |
| 42 | #include "smalloc.h" |
| 43 | #include "verify.h" |
| 44 | #include "trim.h" |
| 45 | #include "diskutil.h" |
| 46 | #include "cgroup.h" |
| 47 | #include "profile.h" |
| 48 | #include "lib/rand.h" |
| 49 | #include "memalign.h" |
| 50 | #include "server.h" |
| 51 | |
| 52 | static pthread_t disk_util_thread; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 53 | static struct fio_mutex *disk_thread_mutex; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 54 | static struct fio_mutex *startup_mutex; |
| 55 | static struct fio_mutex *writeout_mutex; |
| 56 | static struct flist_head *cgroup_list; |
| 57 | static char *cgroup_mnt; |
| 58 | static int exit_value; |
| 59 | static volatile int fio_abort; |
| 60 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 61 | struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 62 | |
Jens Axboe | a3efc91 | 2012-02-09 11:25:24 +0100 | [diff] [blame] | 63 | int groupid = 0; |
| 64 | unsigned int thread_number = 0; |
| 65 | unsigned int nr_process = 0; |
| 66 | unsigned int nr_thread = 0; |
| 67 | int shm_id = 0; |
| 68 | int temp_stall_ts; |
| 69 | unsigned long done_secs = 0; |
Jens Axboe | 2735718 | 2012-09-27 11:31:50 +0200 | [diff] [blame] | 70 | volatile int disk_util_exit = 0; |
Jens Axboe | a3efc91 | 2012-02-09 11:25:24 +0100 | [diff] [blame] | 71 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 72 | #define PAGE_ALIGN(buf) \ |
Bruce Cran | e43606c | 2012-02-20 09:34:24 +0100 | [diff] [blame] | 73 | (char *) (((uintptr_t) (buf) + page_mask) & ~page_mask) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 74 | |
| 75 | #define JOB_START_TIMEOUT (5 * 1000) |
| 76 | |
| 77 | static void sig_int(int sig) |
| 78 | { |
| 79 | if (threads) { |
| 80 | if (is_backend) |
| 81 | fio_server_got_signal(sig); |
| 82 | else { |
| 83 | log_info("\nfio: terminating on signal %d\n", sig); |
| 84 | fflush(stdout); |
| 85 | exit_value = 128; |
| 86 | } |
| 87 | |
| 88 | fio_terminate_threads(TERMINATE_ALL); |
| 89 | } |
| 90 | } |
| 91 | |
Jens Axboe | 4c6d91e | 2012-03-30 10:30:35 +0200 | [diff] [blame] | 92 | static void sig_show_status(int sig) |
| 93 | { |
| 94 | show_running_run_stats(); |
| 95 | } |
| 96 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 97 | static void set_sig_handlers(void) |
| 98 | { |
| 99 | struct sigaction act; |
| 100 | |
| 101 | memset(&act, 0, sizeof(act)); |
| 102 | act.sa_handler = sig_int; |
| 103 | act.sa_flags = SA_RESTART; |
| 104 | sigaction(SIGINT, &act, NULL); |
| 105 | |
| 106 | memset(&act, 0, sizeof(act)); |
| 107 | act.sa_handler = sig_int; |
| 108 | act.sa_flags = SA_RESTART; |
| 109 | sigaction(SIGTERM, &act, NULL); |
| 110 | |
Bruce Cran | 2f69450 | 2012-10-10 16:34:13 +0100 | [diff] [blame] | 111 | /* Windows uses SIGBREAK as a quit signal from other applications */ |
| 112 | #ifdef WIN32 |
| 113 | memset(&act, 0, sizeof(act)); |
| 114 | act.sa_handler = sig_int; |
| 115 | act.sa_flags = SA_RESTART; |
| 116 | sigaction(SIGBREAK, &act, NULL); |
| 117 | #endif |
| 118 | |
Jens Axboe | 4c6d91e | 2012-03-30 10:30:35 +0200 | [diff] [blame] | 119 | memset(&act, 0, sizeof(act)); |
| 120 | act.sa_handler = sig_show_status; |
| 121 | act.sa_flags = SA_RESTART; |
| 122 | sigaction(SIGUSR1, &act, NULL); |
| 123 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 124 | if (is_backend) { |
| 125 | memset(&act, 0, sizeof(act)); |
| 126 | act.sa_handler = sig_int; |
| 127 | act.sa_flags = SA_RESTART; |
| 128 | sigaction(SIGPIPE, &act, NULL); |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | /* |
| 133 | * Check if we are above the minimum rate given. |
| 134 | */ |
| 135 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
| 136 | enum fio_ddir ddir) |
| 137 | { |
| 138 | unsigned long long bytes = 0; |
| 139 | unsigned long iops = 0; |
| 140 | unsigned long spent; |
| 141 | unsigned long rate; |
| 142 | unsigned int ratemin = 0; |
| 143 | unsigned int rate_iops = 0; |
| 144 | unsigned int rate_iops_min = 0; |
| 145 | |
| 146 | assert(ddir_rw(ddir)); |
| 147 | |
| 148 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
| 149 | return 0; |
| 150 | |
| 151 | /* |
| 152 | * allow a 2 second settle period in the beginning |
| 153 | */ |
| 154 | if (mtime_since(&td->start, now) < 2000) |
| 155 | return 0; |
| 156 | |
| 157 | iops += td->this_io_blocks[ddir]; |
| 158 | bytes += td->this_io_bytes[ddir]; |
| 159 | ratemin += td->o.ratemin[ddir]; |
| 160 | rate_iops += td->o.rate_iops[ddir]; |
| 161 | rate_iops_min += td->o.rate_iops_min[ddir]; |
| 162 | |
| 163 | /* |
| 164 | * if rate blocks is set, sample is running |
| 165 | */ |
| 166 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
| 167 | spent = mtime_since(&td->lastrate[ddir], now); |
| 168 | if (spent < td->o.ratecycle) |
| 169 | return 0; |
| 170 | |
| 171 | if (td->o.rate[ddir]) { |
| 172 | /* |
| 173 | * check bandwidth specified rate |
| 174 | */ |
| 175 | if (bytes < td->rate_bytes[ddir]) { |
| 176 | log_err("%s: min rate %u not met\n", td->o.name, |
| 177 | ratemin); |
| 178 | return 1; |
| 179 | } else { |
| 180 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
| 181 | if (rate < ratemin || |
| 182 | bytes < td->rate_bytes[ddir]) { |
| 183 | log_err("%s: min rate %u not met, got" |
| 184 | " %luKB/sec\n", td->o.name, |
| 185 | ratemin, rate); |
| 186 | return 1; |
| 187 | } |
| 188 | } |
| 189 | } else { |
| 190 | /* |
| 191 | * checks iops specified rate |
| 192 | */ |
| 193 | if (iops < rate_iops) { |
| 194 | log_err("%s: min iops rate %u not met\n", |
| 195 | td->o.name, rate_iops); |
| 196 | return 1; |
| 197 | } else { |
| 198 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
| 199 | if (rate < rate_iops_min || |
| 200 | iops < td->rate_blocks[ddir]) { |
| 201 | log_err("%s: min iops rate %u not met," |
| 202 | " got %lu\n", td->o.name, |
| 203 | rate_iops_min, rate); |
| 204 | } |
| 205 | } |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | td->rate_bytes[ddir] = bytes; |
| 210 | td->rate_blocks[ddir] = iops; |
| 211 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
| 216 | unsigned long *bytes_done) |
| 217 | { |
| 218 | int ret = 0; |
| 219 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 220 | if (bytes_done[DDIR_READ]) |
| 221 | ret |= __check_min_rate(td, now, DDIR_READ); |
| 222 | if (bytes_done[DDIR_WRITE]) |
| 223 | ret |= __check_min_rate(td, now, DDIR_WRITE); |
| 224 | if (bytes_done[DDIR_TRIM]) |
| 225 | ret |= __check_min_rate(td, now, DDIR_TRIM); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 226 | |
| 227 | return ret; |
| 228 | } |
| 229 | |
| 230 | /* |
| 231 | * When job exits, we can cancel the in-flight IO if we are using async |
| 232 | * io. Attempt to do so. |
| 233 | */ |
| 234 | static void cleanup_pending_aio(struct thread_data *td) |
| 235 | { |
| 236 | struct flist_head *entry, *n; |
| 237 | struct io_u *io_u; |
| 238 | int r; |
| 239 | |
| 240 | /* |
| 241 | * get immediately available events, if any |
| 242 | */ |
| 243 | r = io_u_queued_complete(td, 0, NULL); |
| 244 | if (r < 0) |
| 245 | return; |
| 246 | |
| 247 | /* |
| 248 | * now cancel remaining active events |
| 249 | */ |
| 250 | if (td->io_ops->cancel) { |
| 251 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
| 252 | io_u = flist_entry(entry, struct io_u, list); |
| 253 | |
| 254 | /* |
| 255 | * if the io_u isn't in flight, then that generally |
| 256 | * means someone leaked an io_u. complain but fix |
| 257 | * it up, so we don't stall here. |
| 258 | */ |
| 259 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { |
| 260 | log_err("fio: non-busy IO on busy list\n"); |
| 261 | put_io_u(td, io_u); |
| 262 | } else { |
| 263 | r = td->io_ops->cancel(td, io_u); |
| 264 | if (!r) |
| 265 | put_io_u(td, io_u); |
| 266 | } |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | if (td->cur_depth) |
| 271 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
| 272 | } |
| 273 | |
| 274 | /* |
| 275 | * Helper to handle the final sync of a file. Works just like the normal |
| 276 | * io path, just does everything sync. |
| 277 | */ |
| 278 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) |
| 279 | { |
| 280 | struct io_u *io_u = __get_io_u(td); |
| 281 | int ret; |
| 282 | |
| 283 | if (!io_u) |
| 284 | return 1; |
| 285 | |
| 286 | io_u->ddir = DDIR_SYNC; |
| 287 | io_u->file = f; |
| 288 | |
| 289 | if (td_io_prep(td, io_u)) { |
| 290 | put_io_u(td, io_u); |
| 291 | return 1; |
| 292 | } |
| 293 | |
| 294 | requeue: |
| 295 | ret = td_io_queue(td, io_u); |
| 296 | if (ret < 0) { |
| 297 | td_verror(td, io_u->error, "td_io_queue"); |
| 298 | put_io_u(td, io_u); |
| 299 | return 1; |
| 300 | } else if (ret == FIO_Q_QUEUED) { |
| 301 | if (io_u_queued_complete(td, 1, NULL) < 0) |
| 302 | return 1; |
| 303 | } else if (ret == FIO_Q_COMPLETED) { |
| 304 | if (io_u->error) { |
| 305 | td_verror(td, io_u->error, "td_io_queue"); |
| 306 | return 1; |
| 307 | } |
| 308 | |
| 309 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
| 310 | return 1; |
| 311 | } else if (ret == FIO_Q_BUSY) { |
| 312 | if (td_io_commit(td)) |
| 313 | return 1; |
| 314 | goto requeue; |
| 315 | } |
| 316 | |
| 317 | return 0; |
| 318 | } |
Jens Axboe | a3efc91 | 2012-02-09 11:25:24 +0100 | [diff] [blame] | 319 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 320 | static inline void __update_tv_cache(struct thread_data *td) |
| 321 | { |
| 322 | fio_gettime(&td->tv_cache, NULL); |
| 323 | } |
| 324 | |
| 325 | static inline void update_tv_cache(struct thread_data *td) |
| 326 | { |
| 327 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) |
| 328 | __update_tv_cache(td); |
| 329 | } |
| 330 | |
| 331 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
| 332 | { |
| 333 | if (in_ramp_time(td)) |
| 334 | return 0; |
| 335 | if (!td->o.timeout) |
| 336 | return 0; |
| 337 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
| 338 | return 1; |
| 339 | |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | static int break_on_this_error(struct thread_data *td, enum fio_ddir ddir, |
| 344 | int *retptr) |
| 345 | { |
| 346 | int ret = *retptr; |
| 347 | |
| 348 | if (ret < 0 || td->error) { |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 349 | int err = td->error; |
| 350 | enum error_type_bit eb; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 351 | |
| 352 | if (ret < 0) |
| 353 | err = -ret; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 354 | |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 355 | eb = td_error_type(ddir, err); |
| 356 | if (!(td->o.continue_on_error & (1 << eb))) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 357 | return 1; |
| 358 | |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 359 | if (td_non_fatal_error(td, eb, err)) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 360 | /* |
| 361 | * Continue with the I/Os in case of |
| 362 | * a non fatal error. |
| 363 | */ |
| 364 | update_error_count(td, err); |
| 365 | td_clear_error(td); |
| 366 | *retptr = 0; |
| 367 | return 0; |
| 368 | } else if (td->o.fill_device && err == ENOSPC) { |
| 369 | /* |
| 370 | * We expect to hit this error if |
| 371 | * fill_device option is set. |
| 372 | */ |
| 373 | td_clear_error(td); |
| 374 | td->terminate = 1; |
| 375 | return 1; |
| 376 | } else { |
| 377 | /* |
| 378 | * Stop the I/O in case of a fatal |
| 379 | * error. |
| 380 | */ |
| 381 | update_error_count(td, err); |
| 382 | return 1; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | return 0; |
| 387 | } |
| 388 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 389 | /* |
| 390 | * The main verify engine. Runs over the writes we previously submitted, |
| 391 | * reads the blocks back in, and checks the crc/md5 of the data. |
| 392 | */ |
| 393 | static void do_verify(struct thread_data *td) |
| 394 | { |
| 395 | struct fio_file *f; |
| 396 | struct io_u *io_u; |
| 397 | int ret, min_events; |
| 398 | unsigned int i; |
| 399 | |
| 400 | dprint(FD_VERIFY, "starting loop\n"); |
| 401 | |
| 402 | /* |
| 403 | * sync io first and invalidate cache, to make sure we really |
| 404 | * read from disk. |
| 405 | */ |
| 406 | for_each_file(td, f, i) { |
| 407 | if (!fio_file_open(f)) |
| 408 | continue; |
| 409 | if (fio_io_sync(td, f)) |
| 410 | break; |
| 411 | if (file_invalidate_cache(td, f)) |
| 412 | break; |
| 413 | } |
| 414 | |
| 415 | if (td->error) |
| 416 | return; |
| 417 | |
| 418 | td_set_runstate(td, TD_VERIFYING); |
| 419 | |
| 420 | io_u = NULL; |
| 421 | while (!td->terminate) { |
| 422 | int ret2, full; |
| 423 | |
| 424 | update_tv_cache(td); |
| 425 | |
| 426 | if (runtime_exceeded(td, &td->tv_cache)) { |
| 427 | __update_tv_cache(td); |
| 428 | if (runtime_exceeded(td, &td->tv_cache)) { |
| 429 | td->terminate = 1; |
| 430 | break; |
| 431 | } |
| 432 | } |
| 433 | |
Dan Ehrenberg | 9e684a4 | 2012-02-20 11:05:14 +0100 | [diff] [blame] | 434 | if (flow_threshold_exceeded(td)) |
| 435 | continue; |
| 436 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 437 | io_u = __get_io_u(td); |
| 438 | if (!io_u) |
| 439 | break; |
| 440 | |
| 441 | if (get_next_verify(td, io_u)) { |
| 442 | put_io_u(td, io_u); |
| 443 | break; |
| 444 | } |
| 445 | |
| 446 | if (td_io_prep(td, io_u)) { |
| 447 | put_io_u(td, io_u); |
| 448 | break; |
| 449 | } |
| 450 | |
| 451 | if (td->o.verify_async) |
| 452 | io_u->end_io = verify_io_u_async; |
| 453 | else |
| 454 | io_u->end_io = verify_io_u; |
| 455 | |
| 456 | ret = td_io_queue(td, io_u); |
| 457 | switch (ret) { |
| 458 | case FIO_Q_COMPLETED: |
| 459 | if (io_u->error) { |
| 460 | ret = -io_u->error; |
| 461 | clear_io_u(td, io_u); |
| 462 | } else if (io_u->resid) { |
| 463 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 464 | |
| 465 | /* |
| 466 | * zero read, fail |
| 467 | */ |
| 468 | if (!bytes) { |
| 469 | td_verror(td, EIO, "full resid"); |
| 470 | put_io_u(td, io_u); |
| 471 | break; |
| 472 | } |
| 473 | |
| 474 | io_u->xfer_buflen = io_u->resid; |
| 475 | io_u->xfer_buf += bytes; |
| 476 | io_u->offset += bytes; |
| 477 | |
| 478 | if (ddir_rw(io_u->ddir)) |
| 479 | td->ts.short_io_u[io_u->ddir]++; |
| 480 | |
| 481 | f = io_u->file; |
| 482 | if (io_u->offset == f->real_file_size) |
| 483 | goto sync_done; |
| 484 | |
| 485 | requeue_io_u(td, &io_u); |
| 486 | } else { |
| 487 | sync_done: |
| 488 | ret = io_u_sync_complete(td, io_u, NULL); |
| 489 | if (ret < 0) |
| 490 | break; |
| 491 | } |
| 492 | continue; |
| 493 | case FIO_Q_QUEUED: |
| 494 | break; |
| 495 | case FIO_Q_BUSY: |
| 496 | requeue_io_u(td, &io_u); |
| 497 | ret2 = td_io_commit(td); |
| 498 | if (ret2 < 0) |
| 499 | ret = ret2; |
| 500 | break; |
| 501 | default: |
| 502 | assert(ret < 0); |
| 503 | td_verror(td, -ret, "td_io_queue"); |
| 504 | break; |
| 505 | } |
| 506 | |
| 507 | if (break_on_this_error(td, io_u->ddir, &ret)) |
| 508 | break; |
| 509 | |
| 510 | /* |
| 511 | * if we can queue more, do so. but check if there are |
| 512 | * completed io_u's first. Note that we can get BUSY even |
| 513 | * without IO queued, if the system is resource starved. |
| 514 | */ |
| 515 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
| 516 | if (full || !td->o.iodepth_batch_complete) { |
| 517 | min_events = min(td->o.iodepth_batch_complete, |
| 518 | td->cur_depth); |
Jens Axboe | 8a74b56 | 2012-03-16 13:55:50 +0100 | [diff] [blame] | 519 | /* |
| 520 | * if the queue is full, we MUST reap at least 1 event |
| 521 | */ |
| 522 | if (full && !min_events) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 523 | min_events = 1; |
| 524 | |
| 525 | do { |
| 526 | /* |
| 527 | * Reap required number of io units, if any, |
| 528 | * and do the verification on them through |
| 529 | * the callback handler |
| 530 | */ |
| 531 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
| 532 | ret = -1; |
| 533 | break; |
| 534 | } |
| 535 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
| 536 | } |
| 537 | if (ret < 0) |
| 538 | break; |
| 539 | } |
| 540 | |
| 541 | if (!td->error) { |
| 542 | min_events = td->cur_depth; |
| 543 | |
| 544 | if (min_events) |
| 545 | ret = io_u_queued_complete(td, min_events, NULL); |
| 546 | } else |
| 547 | cleanup_pending_aio(td); |
| 548 | |
| 549 | td_set_runstate(td, TD_RUNNING); |
| 550 | |
| 551 | dprint(FD_VERIFY, "exiting loop\n"); |
| 552 | } |
| 553 | |
Jens Axboe | f7078f7 | 2012-03-07 09:24:05 +0100 | [diff] [blame] | 554 | static int io_bytes_exceeded(struct thread_data *td) |
| 555 | { |
| 556 | unsigned long long bytes; |
| 557 | |
| 558 | if (td_rw(td)) |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 559 | bytes = td->this_io_bytes[DDIR_READ] + td->this_io_bytes[DDIR_WRITE]; |
Jens Axboe | f7078f7 | 2012-03-07 09:24:05 +0100 | [diff] [blame] | 560 | else if (td_write(td)) |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 561 | bytes = td->this_io_bytes[DDIR_WRITE]; |
| 562 | else if (td_read(td)) |
| 563 | bytes = td->this_io_bytes[DDIR_READ]; |
Jens Axboe | f7078f7 | 2012-03-07 09:24:05 +0100 | [diff] [blame] | 564 | else |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 565 | bytes = td->this_io_bytes[DDIR_TRIM]; |
Jens Axboe | f7078f7 | 2012-03-07 09:24:05 +0100 | [diff] [blame] | 566 | |
| 567 | return bytes >= td->o.size; |
| 568 | } |
| 569 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 570 | /* |
| 571 | * Main IO worker function. It retrieves io_u's to process and queues |
| 572 | * and reaps them, checking for rate and errors along the way. |
| 573 | */ |
| 574 | static void do_io(struct thread_data *td) |
| 575 | { |
| 576 | unsigned int i; |
| 577 | int ret = 0; |
| 578 | |
| 579 | if (in_ramp_time(td)) |
| 580 | td_set_runstate(td, TD_RAMP); |
| 581 | else |
| 582 | td_set_runstate(td, TD_RUNNING); |
| 583 | |
Jens Axboe | f7078f7 | 2012-03-07 09:24:05 +0100 | [diff] [blame] | 584 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 585 | (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td) || |
| 586 | td->o.time_based) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 587 | struct timeval comp_time; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 588 | unsigned long bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 589 | int min_evts = 0; |
| 590 | struct io_u *io_u; |
| 591 | int ret2, full; |
| 592 | enum fio_ddir ddir; |
| 593 | |
| 594 | if (td->terminate) |
| 595 | break; |
| 596 | |
| 597 | update_tv_cache(td); |
| 598 | |
| 599 | if (runtime_exceeded(td, &td->tv_cache)) { |
| 600 | __update_tv_cache(td); |
| 601 | if (runtime_exceeded(td, &td->tv_cache)) { |
| 602 | td->terminate = 1; |
| 603 | break; |
| 604 | } |
| 605 | } |
| 606 | |
Dan Ehrenberg | 9e684a4 | 2012-02-20 11:05:14 +0100 | [diff] [blame] | 607 | if (flow_threshold_exceeded(td)) |
| 608 | continue; |
| 609 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 610 | io_u = get_io_u(td); |
| 611 | if (!io_u) |
| 612 | break; |
| 613 | |
| 614 | ddir = io_u->ddir; |
| 615 | |
| 616 | /* |
Jens Axboe | 82af2a7 | 2012-03-13 13:45:58 +0100 | [diff] [blame] | 617 | * Add verification end_io handler if: |
| 618 | * - Asked to verify (!td_rw(td)) |
| 619 | * - Or the io_u is from our verify list (mixed write/ver) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 620 | */ |
| 621 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && |
Jens Axboe | 82af2a7 | 2012-03-13 13:45:58 +0100 | [diff] [blame] | 622 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 623 | if (td->o.verify_async) |
| 624 | io_u->end_io = verify_io_u_async; |
| 625 | else |
| 626 | io_u->end_io = verify_io_u; |
| 627 | td_set_runstate(td, TD_VERIFYING); |
| 628 | } else if (in_ramp_time(td)) |
| 629 | td_set_runstate(td, TD_RAMP); |
| 630 | else |
| 631 | td_set_runstate(td, TD_RUNNING); |
| 632 | |
| 633 | ret = td_io_queue(td, io_u); |
| 634 | switch (ret) { |
| 635 | case FIO_Q_COMPLETED: |
| 636 | if (io_u->error) { |
| 637 | ret = -io_u->error; |
| 638 | clear_io_u(td, io_u); |
| 639 | } else if (io_u->resid) { |
| 640 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 641 | struct fio_file *f = io_u->file; |
| 642 | |
| 643 | /* |
| 644 | * zero read, fail |
| 645 | */ |
| 646 | if (!bytes) { |
| 647 | td_verror(td, EIO, "full resid"); |
| 648 | put_io_u(td, io_u); |
| 649 | break; |
| 650 | } |
| 651 | |
| 652 | io_u->xfer_buflen = io_u->resid; |
| 653 | io_u->xfer_buf += bytes; |
| 654 | io_u->offset += bytes; |
| 655 | |
| 656 | if (ddir_rw(io_u->ddir)) |
| 657 | td->ts.short_io_u[io_u->ddir]++; |
| 658 | |
| 659 | if (io_u->offset == f->real_file_size) |
| 660 | goto sync_done; |
| 661 | |
| 662 | requeue_io_u(td, &io_u); |
| 663 | } else { |
| 664 | sync_done: |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 665 | if (__should_check_rate(td, DDIR_READ) || |
| 666 | __should_check_rate(td, DDIR_WRITE) || |
| 667 | __should_check_rate(td, DDIR_TRIM)) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 668 | fio_gettime(&comp_time, NULL); |
| 669 | |
| 670 | ret = io_u_sync_complete(td, io_u, bytes_done); |
| 671 | if (ret < 0) |
| 672 | break; |
| 673 | } |
| 674 | break; |
| 675 | case FIO_Q_QUEUED: |
| 676 | /* |
| 677 | * if the engine doesn't have a commit hook, |
| 678 | * the io_u is really queued. if it does have such |
| 679 | * a hook, it has to call io_u_queued() itself. |
| 680 | */ |
| 681 | if (td->io_ops->commit == NULL) |
| 682 | io_u_queued(td, io_u); |
| 683 | break; |
| 684 | case FIO_Q_BUSY: |
| 685 | requeue_io_u(td, &io_u); |
| 686 | ret2 = td_io_commit(td); |
| 687 | if (ret2 < 0) |
| 688 | ret = ret2; |
| 689 | break; |
| 690 | default: |
| 691 | assert(ret < 0); |
| 692 | put_io_u(td, io_u); |
| 693 | break; |
| 694 | } |
| 695 | |
| 696 | if (break_on_this_error(td, ddir, &ret)) |
| 697 | break; |
| 698 | |
| 699 | /* |
| 700 | * See if we need to complete some commands. Note that we |
| 701 | * can get BUSY even without IO queued, if the system is |
| 702 | * resource starved. |
| 703 | */ |
| 704 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
| 705 | if (full || !td->o.iodepth_batch_complete) { |
| 706 | min_evts = min(td->o.iodepth_batch_complete, |
| 707 | td->cur_depth); |
Jens Axboe | 8a74b56 | 2012-03-16 13:55:50 +0100 | [diff] [blame] | 708 | /* |
| 709 | * if the queue is full, we MUST reap at least 1 event |
| 710 | */ |
| 711 | if (full && !min_evts) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 712 | min_evts = 1; |
| 713 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 714 | if (__should_check_rate(td, DDIR_READ) || |
| 715 | __should_check_rate(td, DDIR_WRITE) || |
| 716 | __should_check_rate(td, DDIR_TRIM)) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 717 | fio_gettime(&comp_time, NULL); |
| 718 | |
| 719 | do { |
| 720 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
| 721 | if (ret < 0) |
| 722 | break; |
| 723 | |
| 724 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
| 725 | } |
| 726 | |
| 727 | if (ret < 0) |
| 728 | break; |
Jens Axboe | d5abee0 | 2012-10-22 20:36:26 +0200 | [diff] [blame] | 729 | if (!ddir_rw_sum(bytes_done) && !(td->io_ops->flags & FIO_NOIO)) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 730 | continue; |
| 731 | |
| 732 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
| 733 | if (check_min_rate(td, &comp_time, bytes_done)) { |
| 734 | if (exitall_on_terminate) |
| 735 | fio_terminate_threads(td->groupid); |
| 736 | td_verror(td, EIO, "check_min_rate"); |
| 737 | break; |
| 738 | } |
| 739 | } |
| 740 | |
| 741 | if (td->o.thinktime) { |
| 742 | unsigned long long b; |
| 743 | |
Jens Axboe | 342f4be | 2012-09-14 08:59:20 +0200 | [diff] [blame] | 744 | b = ddir_rw_sum(td->io_blocks); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 745 | if (!(b % td->o.thinktime_blocks)) { |
| 746 | int left; |
| 747 | |
| 748 | if (td->o.thinktime_spin) |
| 749 | usec_spin(td->o.thinktime_spin); |
| 750 | |
| 751 | left = td->o.thinktime - td->o.thinktime_spin; |
| 752 | if (left) |
| 753 | usec_sleep(td, left); |
| 754 | } |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | if (td->trim_entries) |
| 759 | log_err("fio: %d trim entries leaked?\n", td->trim_entries); |
| 760 | |
| 761 | if (td->o.fill_device && td->error == ENOSPC) { |
| 762 | td->error = 0; |
| 763 | td->terminate = 1; |
| 764 | } |
| 765 | if (!td->error) { |
| 766 | struct fio_file *f; |
| 767 | |
| 768 | i = td->cur_depth; |
| 769 | if (i) { |
| 770 | ret = io_u_queued_complete(td, i, NULL); |
| 771 | if (td->o.fill_device && td->error == ENOSPC) |
| 772 | td->error = 0; |
| 773 | } |
| 774 | |
| 775 | if (should_fsync(td) && td->o.end_fsync) { |
| 776 | td_set_runstate(td, TD_FSYNCING); |
| 777 | |
| 778 | for_each_file(td, f, i) { |
| 779 | if (!fio_file_open(f)) |
| 780 | continue; |
| 781 | fio_io_sync(td, f); |
| 782 | } |
| 783 | } |
| 784 | } else |
| 785 | cleanup_pending_aio(td); |
| 786 | |
| 787 | /* |
| 788 | * stop job if we failed doing any IO |
| 789 | */ |
Jens Axboe | 342f4be | 2012-09-14 08:59:20 +0200 | [diff] [blame] | 790 | if (!ddir_rw_sum(td->this_io_bytes)) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 791 | td->done = 1; |
| 792 | } |
| 793 | |
| 794 | static void cleanup_io_u(struct thread_data *td) |
| 795 | { |
| 796 | struct flist_head *entry, *n; |
| 797 | struct io_u *io_u; |
| 798 | |
| 799 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
| 800 | io_u = flist_entry(entry, struct io_u, list); |
| 801 | |
| 802 | flist_del(&io_u->list); |
| 803 | fio_memfree(io_u, sizeof(*io_u)); |
| 804 | } |
| 805 | |
| 806 | free_io_mem(td); |
| 807 | } |
| 808 | |
| 809 | static int init_io_u(struct thread_data *td) |
| 810 | { |
| 811 | struct io_u *io_u; |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 812 | unsigned int max_bs, min_write; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 813 | int cl_align, i, max_units; |
Jens Axboe | 59d8d0f | 2012-09-24 14:25:33 +0200 | [diff] [blame] | 814 | int data_xfer = 1; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 815 | char *p; |
| 816 | |
| 817 | max_units = td->o.iodepth; |
| 818 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 819 | max_bs = max(td->o.max_bs[DDIR_TRIM], max_bs); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 820 | min_write = td->o.min_bs[DDIR_WRITE]; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 821 | td->orig_buffer_size = (unsigned long long) max_bs |
| 822 | * (unsigned long long) max_units; |
| 823 | |
Dmitry Monakhov | 88045e0 | 2012-09-25 12:12:36 +0200 | [diff] [blame] | 824 | if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td))) |
Jens Axboe | 59d8d0f | 2012-09-24 14:25:33 +0200 | [diff] [blame] | 825 | data_xfer = 0; |
| 826 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 827 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
| 828 | unsigned long bs; |
| 829 | |
| 830 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
| 831 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); |
| 832 | } |
| 833 | |
| 834 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
| 835 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); |
| 836 | return 1; |
| 837 | } |
| 838 | |
Jens Axboe | 59d8d0f | 2012-09-24 14:25:33 +0200 | [diff] [blame] | 839 | if (data_xfer && allocate_io_mem(td)) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 840 | return 1; |
| 841 | |
| 842 | if (td->o.odirect || td->o.mem_align || |
| 843 | (td->io_ops->flags & FIO_RAWIO)) |
| 844 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
| 845 | else |
| 846 | p = td->orig_buffer; |
| 847 | |
| 848 | cl_align = os_cache_line_size(); |
| 849 | |
| 850 | for (i = 0; i < max_units; i++) { |
| 851 | void *ptr; |
| 852 | |
| 853 | if (td->terminate) |
| 854 | return 1; |
| 855 | |
| 856 | ptr = fio_memalign(cl_align, sizeof(*io_u)); |
| 857 | if (!ptr) { |
| 858 | log_err("fio: unable to allocate aligned memory\n"); |
| 859 | break; |
| 860 | } |
| 861 | |
| 862 | io_u = ptr; |
| 863 | memset(io_u, 0, sizeof(*io_u)); |
| 864 | INIT_FLIST_HEAD(&io_u->list); |
| 865 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
| 866 | |
Jens Axboe | 59d8d0f | 2012-09-24 14:25:33 +0200 | [diff] [blame] | 867 | if (data_xfer) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 868 | io_u->buf = p; |
| 869 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); |
| 870 | |
| 871 | if (td_write(td)) |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 872 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 873 | if (td_write(td) && td->o.verify_pattern_bytes) { |
| 874 | /* |
| 875 | * Fill the buffer with the pattern if we are |
| 876 | * going to be doing writes. |
| 877 | */ |
| 878 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
| 879 | } |
| 880 | } |
| 881 | |
| 882 | io_u->index = i; |
| 883 | io_u->flags = IO_U_F_FREE; |
| 884 | flist_add(&io_u->list, &td->io_u_freelist); |
| 885 | p += max_bs; |
| 886 | } |
| 887 | |
| 888 | return 0; |
| 889 | } |
| 890 | |
| 891 | static int switch_ioscheduler(struct thread_data *td) |
| 892 | { |
| 893 | char tmp[256], tmp2[128]; |
| 894 | FILE *f; |
| 895 | int ret; |
| 896 | |
| 897 | if (td->io_ops->flags & FIO_DISKLESSIO) |
| 898 | return 0; |
| 899 | |
| 900 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
| 901 | |
| 902 | f = fopen(tmp, "r+"); |
| 903 | if (!f) { |
| 904 | if (errno == ENOENT) { |
| 905 | log_err("fio: os or kernel doesn't support IO scheduler" |
| 906 | " switching\n"); |
| 907 | return 0; |
| 908 | } |
| 909 | td_verror(td, errno, "fopen iosched"); |
| 910 | return 1; |
| 911 | } |
| 912 | |
| 913 | /* |
| 914 | * Set io scheduler. |
| 915 | */ |
| 916 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
| 917 | if (ferror(f) || ret != 1) { |
| 918 | td_verror(td, errno, "fwrite"); |
| 919 | fclose(f); |
| 920 | return 1; |
| 921 | } |
| 922 | |
| 923 | rewind(f); |
| 924 | |
| 925 | /* |
| 926 | * Read back and check that the selected scheduler is now the default. |
| 927 | */ |
| 928 | ret = fread(tmp, 1, sizeof(tmp), f); |
| 929 | if (ferror(f) || ret < 0) { |
| 930 | td_verror(td, errno, "fread"); |
| 931 | fclose(f); |
| 932 | return 1; |
| 933 | } |
| 934 | |
| 935 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
| 936 | if (!strstr(tmp, tmp2)) { |
| 937 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
| 938 | td_verror(td, EINVAL, "iosched_switch"); |
| 939 | fclose(f); |
| 940 | return 1; |
| 941 | } |
| 942 | |
| 943 | fclose(f); |
| 944 | return 0; |
| 945 | } |
| 946 | |
| 947 | static int keep_running(struct thread_data *td) |
| 948 | { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 949 | if (td->done) |
| 950 | return 0; |
| 951 | if (td->o.time_based) |
| 952 | return 1; |
| 953 | if (td->o.loops) { |
| 954 | td->o.loops--; |
| 955 | return 1; |
| 956 | } |
| 957 | |
Jens Axboe | 342f4be | 2012-09-14 08:59:20 +0200 | [diff] [blame] | 958 | if (ddir_rw_sum(td->io_bytes) < td->o.size) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 959 | return 1; |
| 960 | |
| 961 | return 0; |
| 962 | } |
| 963 | |
| 964 | static int exec_string(const char *string) |
| 965 | { |
| 966 | int ret, newlen = strlen(string) + 1 + 8; |
| 967 | char *str; |
| 968 | |
| 969 | str = malloc(newlen); |
| 970 | sprintf(str, "sh -c %s", string); |
| 971 | |
| 972 | ret = system(str); |
| 973 | if (ret == -1) |
| 974 | log_err("fio: exec of cmd <%s> failed\n", str); |
| 975 | |
| 976 | free(str); |
| 977 | return ret; |
| 978 | } |
| 979 | |
| 980 | /* |
| 981 | * Entry point for the thread based jobs. The process based jobs end up |
| 982 | * here as well, after a little setup. |
| 983 | */ |
| 984 | static void *thread_main(void *data) |
| 985 | { |
| 986 | unsigned long long elapsed; |
| 987 | struct thread_data *td = data; |
| 988 | pthread_condattr_t attr; |
| 989 | int clear_state; |
| 990 | |
| 991 | if (!td->o.use_thread) { |
| 992 | setsid(); |
| 993 | td->pid = getpid(); |
| 994 | } else |
| 995 | td->pid = gettid(); |
| 996 | |
| 997 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
| 998 | |
| 999 | INIT_FLIST_HEAD(&td->io_u_freelist); |
| 1000 | INIT_FLIST_HEAD(&td->io_u_busylist); |
| 1001 | INIT_FLIST_HEAD(&td->io_u_requeues); |
| 1002 | INIT_FLIST_HEAD(&td->io_log_list); |
| 1003 | INIT_FLIST_HEAD(&td->io_hist_list); |
| 1004 | INIT_FLIST_HEAD(&td->verify_list); |
| 1005 | INIT_FLIST_HEAD(&td->trim_list); |
| 1006 | pthread_mutex_init(&td->io_u_lock, NULL); |
| 1007 | td->io_hist_tree = RB_ROOT; |
| 1008 | |
| 1009 | pthread_condattr_init(&attr); |
| 1010 | pthread_cond_init(&td->verify_cond, &attr); |
| 1011 | pthread_cond_init(&td->free_cond, &attr); |
| 1012 | |
| 1013 | td_set_runstate(td, TD_INITIALIZED); |
| 1014 | dprint(FD_MUTEX, "up startup_mutex\n"); |
| 1015 | fio_mutex_up(startup_mutex); |
| 1016 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
| 1017 | fio_mutex_down(td->mutex); |
| 1018 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
| 1019 | |
| 1020 | /* |
| 1021 | * the ->mutex mutex is now no longer used, close it to avoid |
| 1022 | * eating a file descriptor |
| 1023 | */ |
| 1024 | fio_mutex_remove(td->mutex); |
| 1025 | |
| 1026 | /* |
| 1027 | * A new gid requires privilege, so we need to do this before setting |
| 1028 | * the uid. |
| 1029 | */ |
| 1030 | if (td->o.gid != -1U && setgid(td->o.gid)) { |
| 1031 | td_verror(td, errno, "setgid"); |
| 1032 | goto err; |
| 1033 | } |
| 1034 | if (td->o.uid != -1U && setuid(td->o.uid)) { |
| 1035 | td_verror(td, errno, "setuid"); |
| 1036 | goto err; |
| 1037 | } |
| 1038 | |
| 1039 | /* |
| 1040 | * If we have a gettimeofday() thread, make sure we exclude that |
| 1041 | * thread from this job |
| 1042 | */ |
| 1043 | if (td->o.gtod_cpu) |
| 1044 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); |
| 1045 | |
| 1046 | /* |
| 1047 | * Set affinity first, in case it has an impact on the memory |
| 1048 | * allocations. |
| 1049 | */ |
| 1050 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { |
| 1051 | td_verror(td, errno, "cpu_set_affinity"); |
| 1052 | goto err; |
| 1053 | } |
| 1054 | |
Yufei Ren | d0b937e | 2012-10-19 23:11:52 -0400 | [diff] [blame] | 1055 | #ifdef FIO_HAVE_LIBNUMA |
| 1056 | /* numa node setup */ |
| 1057 | if (td->o.numa_cpumask_set || td->o.numa_memmask_set) { |
| 1058 | int ret; |
| 1059 | |
| 1060 | if (numa_available() < 0) { |
| 1061 | td_verror(td, errno, "Does not support NUMA API\n"); |
| 1062 | goto err; |
| 1063 | } |
| 1064 | |
| 1065 | if (td->o.numa_cpumask_set) { |
| 1066 | ret = numa_run_on_node_mask(td->o.numa_cpunodesmask); |
| 1067 | if (ret == -1) { |
| 1068 | td_verror(td, errno, \ |
| 1069 | "numa_run_on_node_mask failed\n"); |
| 1070 | goto err; |
| 1071 | } |
| 1072 | } |
| 1073 | |
| 1074 | if (td->o.numa_memmask_set) { |
| 1075 | |
| 1076 | switch (td->o.numa_mem_mode) { |
| 1077 | case MPOL_INTERLEAVE: |
| 1078 | numa_set_interleave_mask(td->o.numa_memnodesmask); |
| 1079 | break; |
| 1080 | case MPOL_BIND: |
| 1081 | numa_set_membind(td->o.numa_memnodesmask); |
| 1082 | break; |
| 1083 | case MPOL_LOCAL: |
| 1084 | numa_set_localalloc(); |
| 1085 | break; |
| 1086 | case MPOL_PREFERRED: |
| 1087 | numa_set_preferred(td->o.numa_mem_prefer_node); |
| 1088 | break; |
| 1089 | case MPOL_DEFAULT: |
| 1090 | default: |
| 1091 | break; |
| 1092 | } |
| 1093 | |
| 1094 | } |
| 1095 | } |
| 1096 | #endif |
| 1097 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1098 | /* |
| 1099 | * May alter parameters that init_io_u() will use, so we need to |
| 1100 | * do this first. |
| 1101 | */ |
| 1102 | if (init_iolog(td)) |
| 1103 | goto err; |
| 1104 | |
| 1105 | if (init_io_u(td)) |
| 1106 | goto err; |
| 1107 | |
| 1108 | if (td->o.verify_async && verify_async_init(td)) |
| 1109 | goto err; |
| 1110 | |
| 1111 | if (td->ioprio_set) { |
| 1112 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
| 1113 | td_verror(td, errno, "ioprio_set"); |
| 1114 | goto err; |
| 1115 | } |
| 1116 | } |
| 1117 | |
Tao Ma | 5d89ff7 | 2012-04-26 12:15:46 +0200 | [diff] [blame] | 1118 | if (td->o.cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1119 | goto err; |
| 1120 | |
Bruce Cran | 649c10c | 2012-02-20 07:59:06 +0100 | [diff] [blame] | 1121 | errno = 0; |
| 1122 | if (nice(td->o.nice) == -1 && errno != 0) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1123 | td_verror(td, errno, "nice"); |
| 1124 | goto err; |
| 1125 | } |
| 1126 | |
| 1127 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
| 1128 | goto err; |
| 1129 | |
| 1130 | if (!td->o.create_serialize && setup_files(td)) |
| 1131 | goto err; |
| 1132 | |
| 1133 | if (td_io_init(td)) |
| 1134 | goto err; |
| 1135 | |
| 1136 | if (init_random_map(td)) |
| 1137 | goto err; |
| 1138 | |
| 1139 | if (td->o.exec_prerun) { |
| 1140 | if (exec_string(td->o.exec_prerun)) |
| 1141 | goto err; |
| 1142 | } |
| 1143 | |
| 1144 | if (td->o.pre_read) { |
| 1145 | if (pre_read_files(td) < 0) |
| 1146 | goto err; |
| 1147 | } |
| 1148 | |
| 1149 | fio_gettime(&td->epoch, NULL); |
| 1150 | getrusage(RUSAGE_SELF, &td->ru_start); |
| 1151 | |
| 1152 | clear_state = 0; |
| 1153 | while (keep_running(td)) { |
| 1154 | fio_gettime(&td->start, NULL); |
| 1155 | memcpy(&td->bw_sample_time, &td->start, sizeof(td->start)); |
| 1156 | memcpy(&td->iops_sample_time, &td->start, sizeof(td->start)); |
| 1157 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
| 1158 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1159 | if (td->o.ratemin[DDIR_READ] || td->o.ratemin[DDIR_WRITE] || |
| 1160 | td->o.ratemin[DDIR_TRIM]) { |
| 1161 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1162 | sizeof(td->bw_sample_time)); |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1163 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, |
| 1164 | sizeof(td->bw_sample_time)); |
| 1165 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1166 | sizeof(td->bw_sample_time)); |
| 1167 | } |
| 1168 | |
| 1169 | if (clear_state) |
| 1170 | clear_io_state(td); |
| 1171 | |
| 1172 | prune_io_piece_log(td); |
| 1173 | |
| 1174 | do_io(td); |
| 1175 | |
| 1176 | clear_state = 1; |
| 1177 | |
| 1178 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
| 1179 | elapsed = utime_since_now(&td->start); |
| 1180 | td->ts.runtime[DDIR_READ] += elapsed; |
| 1181 | } |
| 1182 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { |
| 1183 | elapsed = utime_since_now(&td->start); |
| 1184 | td->ts.runtime[DDIR_WRITE] += elapsed; |
| 1185 | } |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1186 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) { |
| 1187 | elapsed = utime_since_now(&td->start); |
| 1188 | td->ts.runtime[DDIR_TRIM] += elapsed; |
| 1189 | } |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1190 | |
| 1191 | if (td->error || td->terminate) |
| 1192 | break; |
| 1193 | |
| 1194 | if (!td->o.do_verify || |
| 1195 | td->o.verify == VERIFY_NONE || |
| 1196 | (td->io_ops->flags & FIO_UNIDIR)) |
| 1197 | continue; |
| 1198 | |
| 1199 | clear_io_state(td); |
| 1200 | |
| 1201 | fio_gettime(&td->start, NULL); |
| 1202 | |
| 1203 | do_verify(td); |
| 1204 | |
| 1205 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); |
| 1206 | |
| 1207 | if (td->error || td->terminate) |
| 1208 | break; |
| 1209 | } |
| 1210 | |
| 1211 | update_rusage_stat(td); |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1212 | td->ts.runtime[DDIR_READ] = (td->ts.runtime[DDIR_READ] + 999) / 1000; |
| 1213 | td->ts.runtime[DDIR_WRITE] = (td->ts.runtime[DDIR_WRITE] + 999) / 1000; |
| 1214 | td->ts.runtime[DDIR_TRIM] = (td->ts.runtime[DDIR_TRIM] + 999) / 1000; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1215 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1216 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
| 1217 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; |
| 1218 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1219 | |
| 1220 | fio_mutex_down(writeout_mutex); |
| 1221 | if (td->bw_log) { |
| 1222 | if (td->o.bw_log_file) { |
| 1223 | finish_log_named(td, td->bw_log, |
| 1224 | td->o.bw_log_file, "bw"); |
| 1225 | } else |
| 1226 | finish_log(td, td->bw_log, "bw"); |
| 1227 | } |
| 1228 | if (td->lat_log) { |
| 1229 | if (td->o.lat_log_file) { |
| 1230 | finish_log_named(td, td->lat_log, |
| 1231 | td->o.lat_log_file, "lat"); |
| 1232 | } else |
| 1233 | finish_log(td, td->lat_log, "lat"); |
| 1234 | } |
| 1235 | if (td->slat_log) { |
| 1236 | if (td->o.lat_log_file) { |
| 1237 | finish_log_named(td, td->slat_log, |
| 1238 | td->o.lat_log_file, "slat"); |
| 1239 | } else |
| 1240 | finish_log(td, td->slat_log, "slat"); |
| 1241 | } |
| 1242 | if (td->clat_log) { |
| 1243 | if (td->o.lat_log_file) { |
| 1244 | finish_log_named(td, td->clat_log, |
| 1245 | td->o.lat_log_file, "clat"); |
| 1246 | } else |
| 1247 | finish_log(td, td->clat_log, "clat"); |
| 1248 | } |
| 1249 | if (td->iops_log) { |
| 1250 | if (td->o.iops_log_file) { |
| 1251 | finish_log_named(td, td->iops_log, |
| 1252 | td->o.iops_log_file, "iops"); |
| 1253 | } else |
| 1254 | finish_log(td, td->iops_log, "iops"); |
| 1255 | } |
| 1256 | |
| 1257 | fio_mutex_up(writeout_mutex); |
| 1258 | if (td->o.exec_postrun) |
| 1259 | exec_string(td->o.exec_postrun); |
| 1260 | |
| 1261 | if (exitall_on_terminate) |
| 1262 | fio_terminate_threads(td->groupid); |
| 1263 | |
| 1264 | err: |
| 1265 | if (td->error) |
| 1266 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
| 1267 | td->verror); |
| 1268 | |
| 1269 | if (td->o.verify_async) |
| 1270 | verify_async_exit(td); |
| 1271 | |
| 1272 | close_and_free_files(td); |
| 1273 | close_ioengine(td); |
| 1274 | cleanup_io_u(td); |
| 1275 | cgroup_shutdown(td, &cgroup_mnt); |
| 1276 | |
| 1277 | if (td->o.cpumask_set) { |
| 1278 | int ret = fio_cpuset_exit(&td->o.cpumask); |
| 1279 | |
| 1280 | td_verror(td, ret, "fio_cpuset_exit"); |
| 1281 | } |
| 1282 | |
| 1283 | /* |
| 1284 | * do this very late, it will log file closing as well |
| 1285 | */ |
| 1286 | if (td->o.write_iolog_file) |
| 1287 | write_iolog_close(td); |
| 1288 | |
| 1289 | td_set_runstate(td, TD_EXITED); |
Bruce Cran | e43606c | 2012-02-20 09:34:24 +0100 | [diff] [blame] | 1290 | return (void *) (uintptr_t) td->error; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1291 | } |
| 1292 | |
| 1293 | |
| 1294 | /* |
| 1295 | * We cannot pass the td data into a forked process, so attach the td and |
| 1296 | * pass it to the thread worker. |
| 1297 | */ |
| 1298 | static int fork_main(int shmid, int offset) |
| 1299 | { |
| 1300 | struct thread_data *td; |
| 1301 | void *data, *ret; |
| 1302 | |
| 1303 | #ifndef __hpux |
| 1304 | data = shmat(shmid, NULL, 0); |
| 1305 | if (data == (void *) -1) { |
| 1306 | int __err = errno; |
| 1307 | |
| 1308 | perror("shmat"); |
| 1309 | return __err; |
| 1310 | } |
| 1311 | #else |
| 1312 | /* |
| 1313 | * HP-UX inherits shm mappings? |
| 1314 | */ |
| 1315 | data = threads; |
| 1316 | #endif |
| 1317 | |
| 1318 | td = data + offset * sizeof(struct thread_data); |
| 1319 | ret = thread_main(td); |
| 1320 | shmdt(data); |
Bruce Cran | e43606c | 2012-02-20 09:34:24 +0100 | [diff] [blame] | 1321 | return (int) (uintptr_t) ret; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1322 | } |
| 1323 | |
| 1324 | /* |
| 1325 | * Run over the job map and reap the threads that have exited, if any. |
| 1326 | */ |
| 1327 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, |
| 1328 | unsigned int *m_rate) |
| 1329 | { |
| 1330 | struct thread_data *td; |
| 1331 | unsigned int cputhreads, realthreads, pending; |
| 1332 | int i, status, ret; |
| 1333 | |
| 1334 | /* |
| 1335 | * reap exited threads (TD_EXITED -> TD_REAPED) |
| 1336 | */ |
| 1337 | realthreads = pending = cputhreads = 0; |
| 1338 | for_each_td(td, i) { |
| 1339 | int flags = 0; |
| 1340 | |
| 1341 | /* |
| 1342 | * ->io_ops is NULL for a thread that has closed its |
| 1343 | * io engine |
| 1344 | */ |
| 1345 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
| 1346 | cputhreads++; |
| 1347 | else |
| 1348 | realthreads++; |
| 1349 | |
| 1350 | if (!td->pid) { |
| 1351 | pending++; |
| 1352 | continue; |
| 1353 | } |
| 1354 | if (td->runstate == TD_REAPED) |
| 1355 | continue; |
| 1356 | if (td->o.use_thread) { |
| 1357 | if (td->runstate == TD_EXITED) { |
| 1358 | td_set_runstate(td, TD_REAPED); |
| 1359 | goto reaped; |
| 1360 | } |
| 1361 | continue; |
| 1362 | } |
| 1363 | |
| 1364 | flags = WNOHANG; |
| 1365 | if (td->runstate == TD_EXITED) |
| 1366 | flags = 0; |
| 1367 | |
| 1368 | /* |
| 1369 | * check if someone quit or got killed in an unusual way |
| 1370 | */ |
| 1371 | ret = waitpid(td->pid, &status, flags); |
| 1372 | if (ret < 0) { |
| 1373 | if (errno == ECHILD) { |
| 1374 | log_err("fio: pid=%d disappeared %d\n", |
| 1375 | (int) td->pid, td->runstate); |
Jens Axboe | a5e371a | 2012-04-02 09:47:09 -0700 | [diff] [blame] | 1376 | td->sig = ECHILD; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1377 | td_set_runstate(td, TD_REAPED); |
| 1378 | goto reaped; |
| 1379 | } |
| 1380 | perror("waitpid"); |
| 1381 | } else if (ret == td->pid) { |
| 1382 | if (WIFSIGNALED(status)) { |
| 1383 | int sig = WTERMSIG(status); |
| 1384 | |
| 1385 | if (sig != SIGTERM) |
| 1386 | log_err("fio: pid=%d, got signal=%d\n", |
| 1387 | (int) td->pid, sig); |
Jens Axboe | a5e371a | 2012-04-02 09:47:09 -0700 | [diff] [blame] | 1388 | td->sig = sig; |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1389 | td_set_runstate(td, TD_REAPED); |
| 1390 | goto reaped; |
| 1391 | } |
| 1392 | if (WIFEXITED(status)) { |
| 1393 | if (WEXITSTATUS(status) && !td->error) |
| 1394 | td->error = WEXITSTATUS(status); |
| 1395 | |
| 1396 | td_set_runstate(td, TD_REAPED); |
| 1397 | goto reaped; |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | /* |
| 1402 | * thread is not dead, continue |
| 1403 | */ |
| 1404 | pending++; |
| 1405 | continue; |
| 1406 | reaped: |
| 1407 | (*nr_running)--; |
Jens Axboe | 342f4be | 2012-09-14 08:59:20 +0200 | [diff] [blame] | 1408 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
| 1409 | (*t_rate) -= ddir_rw_sum(td->o.rate); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1410 | if (!td->pid) |
| 1411 | pending--; |
| 1412 | |
| 1413 | if (td->error) |
| 1414 | exit_value++; |
| 1415 | |
| 1416 | done_secs += mtime_since_now(&td->epoch) / 1000; |
| 1417 | } |
| 1418 | |
| 1419 | if (*nr_running == cputhreads && !pending && realthreads) |
| 1420 | fio_terminate_threads(TERMINATE_ALL); |
| 1421 | } |
| 1422 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1423 | /* |
| 1424 | * Main function for kicking off and reaping jobs, as needed. |
| 1425 | */ |
| 1426 | static void run_threads(void) |
| 1427 | { |
| 1428 | struct thread_data *td; |
| 1429 | unsigned long spent; |
| 1430 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; |
| 1431 | |
| 1432 | if (fio_pin_memory()) |
| 1433 | return; |
| 1434 | |
| 1435 | if (fio_gtod_offload && fio_start_gtod_thread()) |
| 1436 | return; |
| 1437 | |
| 1438 | set_sig_handlers(); |
| 1439 | |
Jens Axboe | f3afa57 | 2012-09-17 13:34:16 +0200 | [diff] [blame] | 1440 | if (output_format == FIO_OUTPUT_NORMAL) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1441 | log_info("Starting "); |
| 1442 | if (nr_thread) |
| 1443 | log_info("%d thread%s", nr_thread, |
| 1444 | nr_thread > 1 ? "s" : ""); |
| 1445 | if (nr_process) { |
| 1446 | if (nr_thread) |
| 1447 | log_info(" and "); |
| 1448 | log_info("%d process%s", nr_process, |
| 1449 | nr_process > 1 ? "es" : ""); |
| 1450 | } |
| 1451 | log_info("\n"); |
| 1452 | fflush(stdout); |
| 1453 | } |
| 1454 | |
| 1455 | todo = thread_number; |
| 1456 | nr_running = 0; |
| 1457 | nr_started = 0; |
| 1458 | m_rate = t_rate = 0; |
| 1459 | |
| 1460 | for_each_td(td, i) { |
| 1461 | print_status_init(td->thread_number - 1); |
| 1462 | |
| 1463 | if (!td->o.create_serialize) |
| 1464 | continue; |
| 1465 | |
| 1466 | /* |
| 1467 | * do file setup here so it happens sequentially, |
| 1468 | * we don't want X number of threads getting their |
| 1469 | * client data interspersed on disk |
| 1470 | */ |
| 1471 | if (setup_files(td)) { |
| 1472 | exit_value++; |
| 1473 | if (td->error) |
| 1474 | log_err("fio: pid=%d, err=%d/%s\n", |
| 1475 | (int) td->pid, td->error, td->verror); |
| 1476 | td_set_runstate(td, TD_REAPED); |
| 1477 | todo--; |
| 1478 | } else { |
| 1479 | struct fio_file *f; |
| 1480 | unsigned int j; |
| 1481 | |
| 1482 | /* |
| 1483 | * for sharing to work, each job must always open |
| 1484 | * its own files. so close them, if we opened them |
| 1485 | * for creation |
| 1486 | */ |
| 1487 | for_each_file(td, f, j) { |
| 1488 | if (fio_file_open(f)) |
| 1489 | td_io_close_file(td, f); |
| 1490 | } |
| 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | set_genesis_time(); |
| 1495 | |
| 1496 | while (todo) { |
| 1497 | struct thread_data *map[REAL_MAX_JOBS]; |
| 1498 | struct timeval this_start; |
| 1499 | int this_jobs = 0, left; |
| 1500 | |
| 1501 | /* |
| 1502 | * create threads (TD_NOT_CREATED -> TD_CREATED) |
| 1503 | */ |
| 1504 | for_each_td(td, i) { |
| 1505 | if (td->runstate != TD_NOT_CREATED) |
| 1506 | continue; |
| 1507 | |
| 1508 | /* |
| 1509 | * never got a chance to start, killed by other |
| 1510 | * thread for some reason |
| 1511 | */ |
| 1512 | if (td->terminate) { |
| 1513 | todo--; |
| 1514 | continue; |
| 1515 | } |
| 1516 | |
| 1517 | if (td->o.start_delay) { |
| 1518 | spent = mtime_since_genesis(); |
| 1519 | |
| 1520 | if (td->o.start_delay * 1000 > spent) |
| 1521 | continue; |
| 1522 | } |
| 1523 | |
| 1524 | if (td->o.stonewall && (nr_started || nr_running)) { |
| 1525 | dprint(FD_PROCESS, "%s: stonewall wait\n", |
| 1526 | td->o.name); |
| 1527 | break; |
| 1528 | } |
| 1529 | |
| 1530 | init_disk_util(td); |
| 1531 | |
| 1532 | /* |
| 1533 | * Set state to created. Thread will transition |
| 1534 | * to TD_INITIALIZED when it's done setting up. |
| 1535 | */ |
| 1536 | td_set_runstate(td, TD_CREATED); |
| 1537 | map[this_jobs++] = td; |
| 1538 | nr_started++; |
| 1539 | |
| 1540 | if (td->o.use_thread) { |
| 1541 | int ret; |
| 1542 | |
| 1543 | dprint(FD_PROCESS, "will pthread_create\n"); |
| 1544 | ret = pthread_create(&td->thread, NULL, |
| 1545 | thread_main, td); |
| 1546 | if (ret) { |
| 1547 | log_err("pthread_create: %s\n", |
| 1548 | strerror(ret)); |
| 1549 | nr_started--; |
| 1550 | break; |
| 1551 | } |
| 1552 | ret = pthread_detach(td->thread); |
| 1553 | if (ret) |
| 1554 | log_err("pthread_detach: %s", |
| 1555 | strerror(ret)); |
| 1556 | } else { |
| 1557 | pid_t pid; |
| 1558 | dprint(FD_PROCESS, "will fork\n"); |
| 1559 | pid = fork(); |
| 1560 | if (!pid) { |
| 1561 | int ret = fork_main(shm_id, i); |
| 1562 | |
| 1563 | _exit(ret); |
| 1564 | } else if (i == fio_debug_jobno) |
| 1565 | *fio_debug_jobp = pid; |
| 1566 | } |
| 1567 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
| 1568 | if (fio_mutex_down_timeout(startup_mutex, 10)) { |
| 1569 | log_err("fio: job startup hung? exiting.\n"); |
| 1570 | fio_terminate_threads(TERMINATE_ALL); |
| 1571 | fio_abort = 1; |
| 1572 | nr_started--; |
| 1573 | break; |
| 1574 | } |
| 1575 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
| 1576 | } |
| 1577 | |
| 1578 | /* |
| 1579 | * Wait for the started threads to transition to |
| 1580 | * TD_INITIALIZED. |
| 1581 | */ |
| 1582 | fio_gettime(&this_start, NULL); |
| 1583 | left = this_jobs; |
| 1584 | while (left && !fio_abort) { |
| 1585 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
| 1586 | break; |
| 1587 | |
| 1588 | usleep(100000); |
| 1589 | |
| 1590 | for (i = 0; i < this_jobs; i++) { |
| 1591 | td = map[i]; |
| 1592 | if (!td) |
| 1593 | continue; |
| 1594 | if (td->runstate == TD_INITIALIZED) { |
| 1595 | map[i] = NULL; |
| 1596 | left--; |
| 1597 | } else if (td->runstate >= TD_EXITED) { |
| 1598 | map[i] = NULL; |
| 1599 | left--; |
| 1600 | todo--; |
| 1601 | nr_running++; /* work-around... */ |
| 1602 | } |
| 1603 | } |
| 1604 | } |
| 1605 | |
| 1606 | if (left) { |
Jens Axboe | 4e87c37 | 2012-02-15 14:27:08 +0100 | [diff] [blame] | 1607 | log_err("fio: %d job%s failed to start\n", left, |
| 1608 | left > 1 ? "s" : ""); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1609 | for (i = 0; i < this_jobs; i++) { |
| 1610 | td = map[i]; |
| 1611 | if (!td) |
| 1612 | continue; |
| 1613 | kill(td->pid, SIGTERM); |
| 1614 | } |
| 1615 | break; |
| 1616 | } |
| 1617 | |
| 1618 | /* |
| 1619 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
| 1620 | */ |
| 1621 | for_each_td(td, i) { |
| 1622 | if (td->runstate != TD_INITIALIZED) |
| 1623 | continue; |
| 1624 | |
| 1625 | if (in_ramp_time(td)) |
| 1626 | td_set_runstate(td, TD_RAMP); |
| 1627 | else |
| 1628 | td_set_runstate(td, TD_RUNNING); |
| 1629 | nr_running++; |
| 1630 | nr_started--; |
Jens Axboe | 342f4be | 2012-09-14 08:59:20 +0200 | [diff] [blame] | 1631 | m_rate += ddir_rw_sum(td->o.ratemin); |
| 1632 | t_rate += ddir_rw_sum(td->o.rate); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1633 | todo--; |
| 1634 | fio_mutex_up(td->mutex); |
| 1635 | } |
| 1636 | |
| 1637 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1638 | |
| 1639 | if (todo) { |
| 1640 | if (is_backend) |
| 1641 | fio_server_idle_loop(); |
| 1642 | else |
| 1643 | usleep(100000); |
| 1644 | } |
| 1645 | } |
| 1646 | |
| 1647 | while (nr_running) { |
| 1648 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1649 | |
| 1650 | if (is_backend) |
| 1651 | fio_server_idle_loop(); |
| 1652 | else |
| 1653 | usleep(10000); |
| 1654 | } |
| 1655 | |
| 1656 | update_io_ticks(); |
| 1657 | fio_unpin_memory(); |
| 1658 | } |
| 1659 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1660 | void wait_for_disk_thread_exit(void) |
| 1661 | { |
| 1662 | fio_mutex_down(disk_thread_mutex); |
| 1663 | } |
| 1664 | |
Jens Axboe | 2735718 | 2012-09-27 11:31:50 +0200 | [diff] [blame] | 1665 | static void free_disk_util(void) |
| 1666 | { |
| 1667 | disk_util_start_exit(); |
| 1668 | wait_for_disk_thread_exit(); |
| 1669 | disk_util_prune_entries(); |
| 1670 | } |
| 1671 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1672 | static void *disk_thread_main(void *data) |
| 1673 | { |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1674 | int ret = 0; |
| 1675 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1676 | fio_mutex_up(startup_mutex); |
| 1677 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1678 | while (threads && !ret) { |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1679 | usleep(DISK_UTIL_MSEC * 1000); |
| 1680 | if (!threads) |
| 1681 | break; |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1682 | ret = update_io_ticks(); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1683 | |
| 1684 | if (!is_backend) |
| 1685 | print_thread_status(); |
| 1686 | } |
| 1687 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1688 | fio_mutex_up(disk_thread_mutex); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1689 | return NULL; |
| 1690 | } |
| 1691 | |
| 1692 | static int create_disk_util_thread(void) |
| 1693 | { |
| 1694 | int ret; |
| 1695 | |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1696 | setup_disk_util(); |
| 1697 | |
Jens Axboe | 521da52 | 2012-08-02 11:21:36 +0200 | [diff] [blame] | 1698 | disk_thread_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1699 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1700 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
| 1701 | if (ret) { |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1702 | fio_mutex_remove(disk_thread_mutex); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1703 | log_err("Can't create disk util thread: %s\n", strerror(ret)); |
| 1704 | return 1; |
| 1705 | } |
| 1706 | |
| 1707 | ret = pthread_detach(disk_util_thread); |
| 1708 | if (ret) { |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1709 | fio_mutex_remove(disk_thread_mutex); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1710 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); |
| 1711 | return 1; |
| 1712 | } |
| 1713 | |
| 1714 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
| 1715 | fio_mutex_down(startup_mutex); |
| 1716 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
| 1717 | return 0; |
| 1718 | } |
| 1719 | |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1720 | int fio_backend(void) |
| 1721 | { |
| 1722 | struct thread_data *td; |
| 1723 | int i; |
| 1724 | |
| 1725 | if (exec_profile) { |
| 1726 | if (load_profile(exec_profile)) |
| 1727 | return 1; |
| 1728 | free(exec_profile); |
| 1729 | exec_profile = NULL; |
| 1730 | } |
| 1731 | if (!thread_number) |
| 1732 | return 0; |
| 1733 | |
| 1734 | if (write_bw_log) { |
| 1735 | setup_log(&agg_io_log[DDIR_READ], 0); |
| 1736 | setup_log(&agg_io_log[DDIR_WRITE], 0); |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1737 | setup_log(&agg_io_log[DDIR_TRIM], 0); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1738 | } |
| 1739 | |
Jens Axboe | 521da52 | 2012-08-02 11:21:36 +0200 | [diff] [blame] | 1740 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1741 | if (startup_mutex == NULL) |
| 1742 | return 1; |
Jens Axboe | 521da52 | 2012-08-02 11:21:36 +0200 | [diff] [blame] | 1743 | writeout_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1744 | if (writeout_mutex == NULL) |
| 1745 | return 1; |
| 1746 | |
| 1747 | set_genesis_time(); |
| 1748 | create_disk_util_thread(); |
| 1749 | |
| 1750 | cgroup_list = smalloc(sizeof(*cgroup_list)); |
| 1751 | INIT_FLIST_HEAD(cgroup_list); |
| 1752 | |
| 1753 | run_threads(); |
| 1754 | |
| 1755 | if (!fio_abort) { |
| 1756 | show_run_stats(); |
| 1757 | if (write_bw_log) { |
| 1758 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
| 1759 | __finish_log(agg_io_log[DDIR_WRITE], |
| 1760 | "agg-write_bw.log"); |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1761 | __finish_log(agg_io_log[DDIR_TRIM], |
| 1762 | "agg-write_bw.log"); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | for_each_td(td, i) |
| 1767 | fio_options_free(td); |
| 1768 | |
Jens Axboe | a462bae | 2012-03-30 08:33:27 +0200 | [diff] [blame] | 1769 | free_disk_util(); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1770 | cgroup_kill(cgroup_list); |
| 1771 | sfree(cgroup_list); |
| 1772 | sfree(cgroup_mnt); |
| 1773 | |
| 1774 | fio_mutex_remove(startup_mutex); |
| 1775 | fio_mutex_remove(writeout_mutex); |
Jens Axboe | 9ec7779 | 2012-08-02 08:27:41 +0200 | [diff] [blame] | 1776 | fio_mutex_remove(disk_thread_mutex); |
Jens Axboe | 2e1df07 | 2012-02-09 11:15:02 +0100 | [diff] [blame] | 1777 | return exit_value; |
| 1778 | } |