Commit | Line | Data |
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ebac4655 JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
aae22ca7 | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
ebac4655 | 6 | * |
8e9fe637 JA |
7 | * The license below covers all files distributed with fio unless otherwise |
8 | * noted in the file itself. | |
9 | * | |
ebac4655 | 10 | * This program is free software; you can redistribute it and/or modify |
8e9fe637 JA |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. | |
ebac4655 JA |
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 | */ | |
ebac4655 JA |
24 | #include <unistd.h> |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
9b836561 | 27 | #include <limits.h> |
ebac4655 JA |
28 | #include <signal.h> |
29 | #include <time.h> | |
dbe1125e | 30 | #include <locale.h> |
36167d82 | 31 | #include <assert.h> |
a5b01f1b | 32 | #include <time.h> |
ebac4655 JA |
33 | #include <sys/stat.h> |
34 | #include <sys/wait.h> | |
35 | #include <sys/ipc.h> | |
36 | #include <sys/shm.h> | |
ebac4655 JA |
37 | #include <sys/mman.h> |
38 | ||
39 | #include "fio.h" | |
210f43b3 | 40 | #include "hash.h" |
2e5cdb11 | 41 | #include "smalloc.h" |
4f5af7b2 | 42 | #include "verify.h" |
a917a8b3 | 43 | #include "trim.h" |
7c9b1bce | 44 | #include "diskutil.h" |
a696fa2a | 45 | #include "cgroup.h" |
07b3232d | 46 | #include "profile.h" |
d54a144d | 47 | #include "lib/rand.h" |
91aea6ec | 48 | #include "memalign.h" |
009b1be4 | 49 | #include "server.h" |
ebac4655 | 50 | |
cfc99db7 JA |
51 | unsigned long page_mask; |
52 | unsigned long page_size; | |
d529ee19 JA |
53 | |
54 | #define PAGE_ALIGN(buf) \ | |
29d610e1 | 55 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
ebac4655 JA |
56 | |
57 | int groupid = 0; | |
58 | int thread_number = 0; | |
9cedf167 JA |
59 | int nr_process = 0; |
60 | int nr_thread = 0; | |
ebac4655 | 61 | int shm_id = 0; |
53cdc686 | 62 | int temp_stall_ts; |
d3eeeabc | 63 | unsigned long done_secs = 0; |
ebac4655 | 64 | |
cdd18ad8 | 65 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 66 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 67 | static volatile int fio_abort; |
437c9b71 | 68 | static int exit_value; |
be4ecfdf | 69 | static pthread_t gtod_thread; |
7985701b | 70 | static pthread_t disk_util_thread; |
dae5341c | 71 | static struct flist_head *cgroup_list; |
6adb38a1 | 72 | static char *cgroup_mnt; |
ebac4655 | 73 | |
d3cc4ebf JA |
74 | unsigned long arch_flags = 0; |
75 | ||
bb3884d8 JA |
76 | struct io_log *agg_io_log[2]; |
77 | ||
ebac4655 | 78 | #define TERMINATE_ALL (-1) |
75154845 | 79 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 80 | |
b29ee5b3 | 81 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 82 | { |
d8fab1b6 JA |
83 | if (td->runstate == runstate) |
84 | return; | |
85 | ||
5921e80c JA |
86 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
87 | td->runstate, runstate); | |
6ce15a32 JA |
88 | td->runstate = runstate; |
89 | } | |
90 | ||
390c40e2 | 91 | static void terminate_threads(int group_id) |
ebac4655 | 92 | { |
34572e28 | 93 | struct thread_data *td; |
ebac4655 JA |
94 | int i; |
95 | ||
6f88bcb0 JA |
96 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
97 | ||
34572e28 | 98 | for_each_td(td, i) { |
ebac4655 | 99 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 100 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 101 | td->o.name, (int) td->pid); |
ad830ed7 JA |
102 | td->terminate = 1; |
103 | td->o.start_delay = 0; | |
104 | ||
7a93ab19 JA |
105 | /* |
106 | * if the thread is running, just let it exit | |
107 | */ | |
6aa27816 MC |
108 | if (!td->pid) |
109 | continue; | |
110 | else if (td->runstate < TD_RAMP) | |
03e20d68 | 111 | kill(td->pid, SIGTERM); |
f63f7f3b JA |
112 | else { |
113 | struct ioengine_ops *ops = td->io_ops; | |
114 | ||
03e20d68 BC |
115 | if (ops && (ops->flags & FIO_SIGTERM)) |
116 | kill(td->pid, SIGTERM); | |
f63f7f3b | 117 | } |
ebac4655 JA |
118 | } |
119 | } | |
120 | } | |
121 | ||
697a606c JA |
122 | static void sig_int(int sig) |
123 | { | |
124 | if (threads) { | |
4ceb30d4 | 125 | log_info("\nfio: terminating on signal %d\n", sig); |
009b1be4 | 126 | exit_backend = 1; |
5ec10eaa | 127 | fflush(stdout); |
deaa1af2 | 128 | exit_value = 128; |
5ec10eaa | 129 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
130 | } |
131 | } | |
132 | ||
7985701b | 133 | static void *disk_thread_main(void *data) |
a5b01f1b | 134 | { |
7985701b JA |
135 | fio_mutex_up(startup_mutex); |
136 | ||
137 | while (threads) { | |
138 | usleep(DISK_UTIL_MSEC * 1000); | |
9a793c2f JA |
139 | if (!threads) |
140 | break; | |
7985701b | 141 | update_io_ticks(); |
5c341e9a JA |
142 | |
143 | if (!is_backend) | |
144 | print_thread_status(); | |
7985701b JA |
145 | } |
146 | ||
147 | return NULL; | |
a5b01f1b JA |
148 | } |
149 | ||
7985701b | 150 | static int create_disk_util_thread(void) |
a5b01f1b | 151 | { |
7985701b | 152 | int ret; |
a5b01f1b | 153 | |
69204d6e | 154 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
7985701b JA |
155 | if (ret) { |
156 | log_err("Can't create disk util thread: %s\n", strerror(ret)); | |
157 | return 1; | |
158 | } | |
a5b01f1b | 159 | |
7985701b JA |
160 | ret = pthread_detach(disk_util_thread); |
161 | if (ret) { | |
162 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); | |
163 | return 1; | |
164 | } | |
03e20d68 | 165 | |
7985701b JA |
166 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
167 | fio_mutex_down(startup_mutex); | |
168 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
169 | return 0; | |
a5b01f1b JA |
170 | } |
171 | ||
697a606c JA |
172 | static void set_sig_handlers(void) |
173 | { | |
174 | struct sigaction act; | |
175 | ||
697a606c JA |
176 | memset(&act, 0, sizeof(act)); |
177 | act.sa_handler = sig_int; | |
178 | act.sa_flags = SA_RESTART; | |
179 | sigaction(SIGINT, &act, NULL); | |
de79c915 | 180 | |
5f8f9726 | 181 | memset(&act, 0, sizeof(act)); |
b20b6be4 | 182 | act.sa_handler = sig_int; |
5f8f9726 | 183 | act.sa_flags = SA_RESTART; |
03e20d68 | 184 | sigaction(SIGTERM, &act, NULL); |
697a606c JA |
185 | } |
186 | ||
906c8d75 JA |
187 | /* |
188 | * Check if we are above the minimum rate given. | |
189 | */ | |
581e7141 | 190 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
bd93e34b | 191 | enum fio_ddir ddir) |
ebac4655 | 192 | { |
0904200b | 193 | unsigned long long bytes = 0; |
4e991c23 | 194 | unsigned long iops = 0; |
ebac4655 JA |
195 | unsigned long spent; |
196 | unsigned long rate; | |
581e7141 JA |
197 | unsigned int ratemin = 0; |
198 | unsigned int rate_iops = 0; | |
199 | unsigned int rate_iops_min = 0; | |
ebac4655 | 200 | |
ff58fced JA |
201 | assert(ddir_rw(ddir)); |
202 | ||
d982d873 JA |
203 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
204 | return 0; | |
205 | ||
ebac4655 JA |
206 | /* |
207 | * allow a 2 second settle period in the beginning | |
208 | */ | |
209 | if (mtime_since(&td->start, now) < 2000) | |
210 | return 0; | |
211 | ||
581e7141 JA |
212 | iops += td->io_blocks[ddir]; |
213 | bytes += td->this_io_bytes[ddir]; | |
214 | ratemin += td->o.ratemin[ddir]; | |
215 | rate_iops += td->o.rate_iops[ddir]; | |
216 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
0904200b | 217 | |
ebac4655 JA |
218 | /* |
219 | * if rate blocks is set, sample is running | |
220 | */ | |
581e7141 JA |
221 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
222 | spent = mtime_since(&td->lastrate[ddir], now); | |
2dc1bbeb | 223 | if (spent < td->o.ratecycle) |
ebac4655 JA |
224 | return 0; |
225 | ||
581e7141 | 226 | if (td->o.rate[ddir]) { |
4e991c23 JA |
227 | /* |
228 | * check bandwidth specified rate | |
229 | */ | |
581e7141 | 230 | if (bytes < td->rate_bytes[ddir]) { |
5ec10eaa | 231 | log_err("%s: min rate %u not met\n", td->o.name, |
581e7141 | 232 | ratemin); |
4e991c23 JA |
233 | return 1; |
234 | } else { | |
581e7141 JA |
235 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
236 | if (rate < ratemin || | |
237 | bytes < td->rate_bytes[ddir]) { | |
5ec10eaa | 238 | log_err("%s: min rate %u not met, got" |
b22989b9 | 239 | " %luKB/sec\n", td->o.name, |
581e7141 | 240 | ratemin, rate); |
4e991c23 JA |
241 | return 1; |
242 | } | |
243 | } | |
413dd459 | 244 | } else { |
4e991c23 JA |
245 | /* |
246 | * checks iops specified rate | |
247 | */ | |
581e7141 | 248 | if (iops < rate_iops) { |
5ec10eaa | 249 | log_err("%s: min iops rate %u not met\n", |
581e7141 | 250 | td->o.name, rate_iops); |
413dd459 | 251 | return 1; |
4e991c23 | 252 | } else { |
581e7141 JA |
253 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
254 | if (rate < rate_iops_min || | |
255 | iops < td->rate_blocks[ddir]) { | |
5ec10eaa JA |
256 | log_err("%s: min iops rate %u not met," |
257 | " got %lu\n", td->o.name, | |
581e7141 | 258 | rate_iops_min, rate); |
4e991c23 | 259 | } |
413dd459 | 260 | } |
ebac4655 JA |
261 | } |
262 | } | |
263 | ||
581e7141 JA |
264 | td->rate_bytes[ddir] = bytes; |
265 | td->rate_blocks[ddir] = iops; | |
266 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
ebac4655 JA |
267 | return 0; |
268 | } | |
269 | ||
581e7141 JA |
270 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
271 | unsigned long *bytes_done) | |
272 | { | |
273 | int ret = 0; | |
274 | ||
275 | if (bytes_done[0]) | |
276 | ret |= __check_min_rate(td, now, 0); | |
277 | if (bytes_done[1]) | |
278 | ret |= __check_min_rate(td, now, 1); | |
279 | ||
280 | return ret; | |
281 | } | |
282 | ||
ebac4655 JA |
283 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
284 | { | |
2dc1bbeb | 285 | if (!td->o.timeout) |
ebac4655 | 286 | return 0; |
2dc1bbeb | 287 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
288 | return 1; |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
906c8d75 JA |
293 | /* |
294 | * When job exits, we can cancel the in-flight IO if we are using async | |
295 | * io. Attempt to do so. | |
296 | */ | |
ebac4655 JA |
297 | static void cleanup_pending_aio(struct thread_data *td) |
298 | { | |
01743ee1 | 299 | struct flist_head *entry, *n; |
ebac4655 JA |
300 | struct io_u *io_u; |
301 | int r; | |
302 | ||
303 | /* | |
304 | * get immediately available events, if any | |
305 | */ | |
581e7141 | 306 | r = io_u_queued_complete(td, 0, NULL); |
b2fdda43 JA |
307 | if (r < 0) |
308 | return; | |
ebac4655 JA |
309 | |
310 | /* | |
311 | * now cancel remaining active events | |
312 | */ | |
2866c82d | 313 | if (td->io_ops->cancel) { |
01743ee1 JA |
314 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
315 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 316 | |
0c6e7517 JA |
317 | /* |
318 | * if the io_u isn't in flight, then that generally | |
319 | * means someone leaked an io_u. complain but fix | |
320 | * it up, so we don't stall here. | |
321 | */ | |
322 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
323 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 324 | put_io_u(td, io_u); |
0c6e7517 JA |
325 | } else { |
326 | r = td->io_ops->cancel(td, io_u); | |
327 | if (!r) | |
328 | put_io_u(td, io_u); | |
329 | } | |
ebac4655 JA |
330 | } |
331 | } | |
332 | ||
97601024 | 333 | if (td->cur_depth) |
581e7141 | 334 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
ebac4655 JA |
335 | } |
336 | ||
858a3d47 JA |
337 | /* |
338 | * Helper to handle the final sync of a file. Works just like the normal | |
339 | * io path, just does everything sync. | |
340 | */ | |
341 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
342 | { | |
343 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
344 | int ret; |
345 | ||
346 | if (!io_u) | |
347 | return 1; | |
348 | ||
349 | io_u->ddir = DDIR_SYNC; | |
350 | io_u->file = f; | |
351 | ||
352 | if (td_io_prep(td, io_u)) { | |
353 | put_io_u(td, io_u); | |
354 | return 1; | |
355 | } | |
356 | ||
755200a3 | 357 | requeue: |
858a3d47 | 358 | ret = td_io_queue(td, io_u); |
36167d82 | 359 | if (ret < 0) { |
e1161c32 | 360 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 361 | put_io_u(td, io_u); |
858a3d47 | 362 | return 1; |
36167d82 | 363 | } else if (ret == FIO_Q_QUEUED) { |
581e7141 | 364 | if (io_u_queued_complete(td, 1, NULL) < 0) |
36167d82 | 365 | return 1; |
36167d82 JA |
366 | } else if (ret == FIO_Q_COMPLETED) { |
367 | if (io_u->error) { | |
e1161c32 | 368 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
369 | return 1; |
370 | } | |
858a3d47 | 371 | |
581e7141 | 372 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
b2fdda43 | 373 | return 1; |
755200a3 JA |
374 | } else if (ret == FIO_Q_BUSY) { |
375 | if (td_io_commit(td)) | |
376 | return 1; | |
377 | goto requeue; | |
858a3d47 JA |
378 | } |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
687c6a23 JA |
383 | static inline void __update_tv_cache(struct thread_data *td) |
384 | { | |
385 | fio_gettime(&td->tv_cache, NULL); | |
386 | } | |
387 | ||
993bf48b JA |
388 | static inline void update_tv_cache(struct thread_data *td) |
389 | { | |
390 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
687c6a23 | 391 | __update_tv_cache(td); |
993bf48b JA |
392 | } |
393 | ||
f2bba182 RR |
394 | static int break_on_this_error(struct thread_data *td, int *retptr) |
395 | { | |
396 | int ret = *retptr; | |
397 | ||
398 | if (ret < 0 || td->error) { | |
399 | int err; | |
400 | ||
1ec99eea JA |
401 | if (!td->o.continue_on_error) |
402 | return 1; | |
f2bba182 RR |
403 | |
404 | if (ret < 0) | |
405 | err = -ret; | |
406 | else | |
407 | err = td->error; | |
408 | ||
f2bba182 RR |
409 | if (td_non_fatal_error(err)) { |
410 | /* | |
411 | * Continue with the I/Os in case of | |
412 | * a non fatal error. | |
413 | */ | |
8a4f8a24 | 414 | update_error_count(td, err); |
f2bba182 RR |
415 | td_clear_error(td); |
416 | *retptr = 0; | |
417 | return 0; | |
8a4f8a24 RR |
418 | } else if (td->o.fill_device && err == ENOSPC) { |
419 | /* | |
420 | * We expect to hit this error if | |
421 | * fill_device option is set. | |
422 | */ | |
423 | td_clear_error(td); | |
424 | td->terminate = 1; | |
425 | return 1; | |
f2bba182 RR |
426 | } else { |
427 | /* | |
428 | * Stop the I/O in case of a fatal | |
429 | * error. | |
430 | */ | |
8a4f8a24 | 431 | update_error_count(td, err); |
f2bba182 RR |
432 | return 1; |
433 | } | |
434 | } | |
435 | ||
436 | return 0; | |
437 | } | |
438 | ||
906c8d75 | 439 | /* |
34403fb1 | 440 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
441 | * reads the blocks back in, and checks the crc/md5 of the data. |
442 | */ | |
1e97cce9 | 443 | static void do_verify(struct thread_data *td) |
ebac4655 | 444 | { |
53cdc686 | 445 | struct fio_file *f; |
36167d82 | 446 | struct io_u *io_u; |
af52b345 JA |
447 | int ret, min_events; |
448 | unsigned int i; | |
e5b401d4 | 449 | |
008618a8 JA |
450 | dprint(FD_VERIFY, "starting loop\n"); |
451 | ||
e5b401d4 JA |
452 | /* |
453 | * sync io first and invalidate cache, to make sure we really | |
454 | * read from disk. | |
455 | */ | |
456 | for_each_file(td, f, i) { | |
d6aed795 | 457 | if (!fio_file_open(f)) |
3d7b485f | 458 | continue; |
b2fdda43 JA |
459 | if (fio_io_sync(td, f)) |
460 | break; | |
461 | if (file_invalidate_cache(td, f)) | |
462 | break; | |
e5b401d4 | 463 | } |
ebac4655 | 464 | |
b2fdda43 JA |
465 | if (td->error) |
466 | return; | |
467 | ||
ebac4655 JA |
468 | td_set_runstate(td, TD_VERIFYING); |
469 | ||
36167d82 JA |
470 | io_u = NULL; |
471 | while (!td->terminate) { | |
4950421a | 472 | int ret2, full; |
5451792e | 473 | |
993bf48b JA |
474 | update_tv_cache(td); |
475 | ||
476 | if (runtime_exceeded(td, &td->tv_cache)) { | |
687c6a23 JA |
477 | __update_tv_cache(td); |
478 | if (runtime_exceeded(td, &td->tv_cache)) { | |
479 | td->terminate = 1; | |
480 | break; | |
481 | } | |
069c2918 | 482 | } |
02bcaa8c | 483 | |
dcb4830d RR |
484 | io_u = __get_io_u(td); |
485 | if (!io_u) | |
486 | break; | |
487 | ||
069c2918 JA |
488 | if (get_next_verify(td, io_u)) { |
489 | put_io_u(td, io_u); | |
ebac4655 | 490 | break; |
069c2918 | 491 | } |
ebac4655 | 492 | |
069c2918 JA |
493 | if (td_io_prep(td, io_u)) { |
494 | put_io_u(td, io_u); | |
53cdc686 | 495 | break; |
069c2918 | 496 | } |
d7762cf8 | 497 | |
e8462bd8 JA |
498 | if (td->o.verify_async) |
499 | io_u->end_io = verify_io_u_async; | |
500 | else | |
501 | io_u->end_io = verify_io_u; | |
53cdc686 | 502 | |
11786802 | 503 | ret = td_io_queue(td, io_u); |
36167d82 JA |
504 | switch (ret) { |
505 | case FIO_Q_COMPLETED: | |
f2bba182 | 506 | if (io_u->error) { |
22819ec2 | 507 | ret = -io_u->error; |
f2bba182 RR |
508 | clear_io_u(td, io_u); |
509 | } else if (io_u->resid) { | |
36167d82 | 510 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 511 | |
9e9d164e JA |
512 | /* |
513 | * zero read, fail | |
514 | */ | |
515 | if (!bytes) { | |
41d9f0fd | 516 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
517 | put_io_u(td, io_u); |
518 | break; | |
519 | } | |
8400d9b2 | 520 | |
36167d82 JA |
521 | io_u->xfer_buflen = io_u->resid; |
522 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
523 | io_u->offset += bytes; |
524 | ||
ff58fced JA |
525 | if (ddir_rw(io_u->ddir)) |
526 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 527 | |
2b13e716 | 528 | f = io_u->file; |
d460eb31 | 529 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
530 | goto sync_done; |
531 | ||
11786802 JA |
532 | requeue_io_u(td, &io_u); |
533 | } else { | |
8400d9b2 | 534 | sync_done: |
581e7141 | 535 | ret = io_u_sync_complete(td, io_u, NULL); |
11786802 JA |
536 | if (ret < 0) |
537 | break; | |
36167d82 | 538 | } |
36167d82 JA |
539 | continue; |
540 | case FIO_Q_QUEUED: | |
541 | break; | |
755200a3 JA |
542 | case FIO_Q_BUSY: |
543 | requeue_io_u(td, &io_u); | |
5451792e JA |
544 | ret2 = td_io_commit(td); |
545 | if (ret2 < 0) | |
546 | ret = ret2; | |
755200a3 | 547 | break; |
36167d82 JA |
548 | default: |
549 | assert(ret < 0); | |
e1161c32 | 550 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
551 | break; |
552 | } | |
553 | ||
f2bba182 | 554 | if (break_on_this_error(td, &ret)) |
3af6ef39 JA |
555 | break; |
556 | ||
ebac4655 | 557 | /* |
3af6ef39 | 558 | * if we can queue more, do so. but check if there are |
ccc02050 JA |
559 | * completed io_u's first. Note that we can get BUSY even |
560 | * without IO queued, if the system is resource starved. | |
ebac4655 | 561 | */ |
ccc02050 | 562 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
4950421a | 563 | if (full || !td->o.iodepth_batch_complete) { |
6a96276c RR |
564 | min_events = min(td->o.iodepth_batch_complete, |
565 | td->cur_depth); | |
1f84f1d9 | 566 | if (full && !min_events && td->o.iodepth_batch_complete != 0) |
838bc709 | 567 | min_events = 1; |
e916b390 | 568 | |
4950421a JA |
569 | do { |
570 | /* | |
571 | * Reap required number of io units, if any, | |
572 | * and do the verification on them through | |
573 | * the callback handler | |
574 | */ | |
581e7141 | 575 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
4950421a JA |
576 | ret = -1; |
577 | break; | |
578 | } | |
579 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
580 | } | |
581 | if (ret < 0) | |
ebac4655 | 582 | break; |
36167d82 | 583 | } |
ebac4655 | 584 | |
c01c0395 JA |
585 | if (!td->error) { |
586 | min_events = td->cur_depth; | |
587 | ||
588 | if (min_events) | |
581e7141 | 589 | ret = io_u_queued_complete(td, min_events, NULL); |
c01c0395 | 590 | } else |
ebac4655 JA |
591 | cleanup_pending_aio(td); |
592 | ||
593 | td_set_runstate(td, TD_RUNNING); | |
008618a8 JA |
594 | |
595 | dprint(FD_VERIFY, "exiting loop\n"); | |
ebac4655 JA |
596 | } |
597 | ||
32cd46a0 | 598 | /* |
906c8d75 | 599 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
600 | * and reaps them, checking for rate and errors along the way. |
601 | */ | |
ebac4655 JA |
602 | static void do_io(struct thread_data *td) |
603 | { | |
af52b345 JA |
604 | unsigned int i; |
605 | int ret = 0; | |
ebac4655 | 606 | |
b29ee5b3 JA |
607 | if (in_ramp_time(td)) |
608 | td_set_runstate(td, TD_RAMP); | |
609 | else | |
610 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 611 | |
457bf399 | 612 | while ( (td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
a917a8b3 | 613 | (!flist_empty(&td->trim_list)) || |
457bf399 | 614 | ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) ) { |
97601024 | 615 | struct timeval comp_time; |
581e7141 | 616 | unsigned long bytes_done[2] = { 0, 0 }; |
84585003 | 617 | int min_evts = 0; |
ebac4655 | 618 | struct io_u *io_u; |
4950421a | 619 | int ret2, full; |
ebac4655 JA |
620 | |
621 | if (td->terminate) | |
622 | break; | |
623 | ||
993bf48b | 624 | update_tv_cache(td); |
97601024 | 625 | |
993bf48b | 626 | if (runtime_exceeded(td, &td->tv_cache)) { |
687c6a23 JA |
627 | __update_tv_cache(td); |
628 | if (runtime_exceeded(td, &td->tv_cache)) { | |
629 | td->terminate = 1; | |
630 | break; | |
631 | } | |
97601024 | 632 | } |
36167d82 | 633 | |
dcb4830d RR |
634 | io_u = get_io_u(td); |
635 | if (!io_u) | |
636 | break; | |
637 | ||
b67740d3 JA |
638 | /* |
639 | * Add verification end_io handler, if asked to verify | |
640 | * a previously written file. | |
641 | */ | |
715d2b3e JA |
642 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && |
643 | !td_rw(td)) { | |
e8462bd8 JA |
644 | if (td->o.verify_async) |
645 | io_u->end_io = verify_io_u_async; | |
646 | else | |
647 | io_u->end_io = verify_io_u; | |
d8fab1b6 | 648 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
649 | } else if (in_ramp_time(td)) |
650 | td_set_runstate(td, TD_RAMP); | |
651 | else | |
d8fab1b6 | 652 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 653 | |
11786802 | 654 | ret = td_io_queue(td, io_u); |
36167d82 JA |
655 | switch (ret) { |
656 | case FIO_Q_COMPLETED: | |
f2bba182 | 657 | if (io_u->error) { |
5451792e | 658 | ret = -io_u->error; |
f2bba182 RR |
659 | clear_io_u(td, io_u); |
660 | } else if (io_u->resid) { | |
36167d82 | 661 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 662 | struct fio_file *f = io_u->file; |
36167d82 | 663 | |
9e9d164e JA |
664 | /* |
665 | * zero read, fail | |
666 | */ | |
667 | if (!bytes) { | |
41d9f0fd | 668 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
669 | put_io_u(td, io_u); |
670 | break; | |
671 | } | |
672 | ||
cec6b55d | 673 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 674 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
675 | io_u->offset += bytes; |
676 | ||
ff58fced JA |
677 | if (ddir_rw(io_u->ddir)) |
678 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 679 | |
d460eb31 | 680 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
681 | goto sync_done; |
682 | ||
11786802 JA |
683 | requeue_io_u(td, &io_u); |
684 | } else { | |
5a7c5680 | 685 | sync_done: |
581e7141 JA |
686 | if (__should_check_rate(td, 0) || |
687 | __should_check_rate(td, 1)) | |
993bf48b JA |
688 | fio_gettime(&comp_time, NULL); |
689 | ||
581e7141 JA |
690 | ret = io_u_sync_complete(td, io_u, bytes_done); |
691 | if (ret < 0) | |
692 | break; | |
cec6b55d | 693 | } |
36167d82 JA |
694 | break; |
695 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
696 | /* |
697 | * if the engine doesn't have a commit hook, | |
698 | * the io_u is really queued. if it does have such | |
699 | * a hook, it has to call io_u_queued() itself. | |
700 | */ | |
701 | if (td->io_ops->commit == NULL) | |
702 | io_u_queued(td, io_u); | |
36167d82 | 703 | break; |
755200a3 JA |
704 | case FIO_Q_BUSY: |
705 | requeue_io_u(td, &io_u); | |
5451792e JA |
706 | ret2 = td_io_commit(td); |
707 | if (ret2 < 0) | |
708 | ret = ret2; | |
755200a3 | 709 | break; |
36167d82 JA |
710 | default: |
711 | assert(ret < 0); | |
712 | put_io_u(td, io_u); | |
713 | break; | |
ebac4655 JA |
714 | } |
715 | ||
f2bba182 | 716 | if (break_on_this_error(td, &ret)) |
36167d82 JA |
717 | break; |
718 | ||
97601024 | 719 | /* |
ccc02050 JA |
720 | * See if we need to complete some commands. Note that we |
721 | * can get BUSY even without IO queued, if the system is | |
722 | * resource starved. | |
97601024 | 723 | */ |
ccc02050 | 724 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
4950421a | 725 | if (full || !td->o.iodepth_batch_complete) { |
6a96276c RR |
726 | min_evts = min(td->o.iodepth_batch_complete, |
727 | td->cur_depth); | |
1f84f1d9 | 728 | if (full && !min_evts && td->o.iodepth_batch_complete != 0) |
36167d82 | 729 | min_evts = 1; |
4950421a | 730 | |
581e7141 JA |
731 | if (__should_check_rate(td, 0) || |
732 | __should_check_rate(td, 1)) | |
993bf48b | 733 | fio_gettime(&comp_time, NULL); |
4950421a JA |
734 | |
735 | do { | |
581e7141 JA |
736 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
737 | if (ret < 0) | |
4950421a JA |
738 | break; |
739 | ||
4950421a | 740 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
ebac4655 JA |
741 | } |
742 | ||
4950421a JA |
743 | if (ret < 0) |
744 | break; | |
581e7141 | 745 | if (!(bytes_done[0] + bytes_done[1])) |
97601024 JA |
746 | continue; |
747 | ||
581e7141 JA |
748 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
749 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
721938ae JA |
750 | if (exitall_on_terminate) |
751 | terminate_threads(td->groupid); | |
752 | td_verror(td, EIO, "check_min_rate"); | |
753 | break; | |
754 | } | |
ebac4655 JA |
755 | } |
756 | ||
2dc1bbeb | 757 | if (td->o.thinktime) { |
9c1f7434 JA |
758 | unsigned long long b; |
759 | ||
760 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 761 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
762 | int left; |
763 | ||
2dc1bbeb | 764 | if (td->o.thinktime_spin) |
6dd6f2cd | 765 | usec_spin(td->o.thinktime_spin); |
48097d5c | 766 | |
2dc1bbeb | 767 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
768 | if (left) |
769 | usec_sleep(td, left); | |
770 | } | |
9c1f7434 | 771 | } |
ebac4655 JA |
772 | } |
773 | ||
d708ac5e JA |
774 | if (td->trim_entries) |
775 | printf("trim entries %ld\n", td->trim_entries); | |
a917a8b3 | 776 | |
aa31f1f1 SL |
777 | if (td->o.fill_device && td->error == ENOSPC) { |
778 | td->error = 0; | |
779 | td->terminate = 1; | |
780 | } | |
4d2413c6 | 781 | if (!td->error) { |
3d7c391d JA |
782 | struct fio_file *f; |
783 | ||
c01c0395 | 784 | i = td->cur_depth; |
d06093e7 | 785 | if (i) { |
581e7141 | 786 | ret = io_u_queued_complete(td, i, NULL); |
d06093e7 SL |
787 | if (td->o.fill_device && td->error == ENOSPC) |
788 | td->error = 0; | |
789 | } | |
ebac4655 | 790 | |
2dc1bbeb | 791 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 792 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
793 | |
794 | for_each_file(td, f, i) { | |
d6aed795 | 795 | if (!fio_file_open(f)) |
3d7b485f | 796 | continue; |
858a3d47 | 797 | fio_io_sync(td, f); |
3d7b485f | 798 | } |
84585003 | 799 | } |
c01c0395 JA |
800 | } else |
801 | cleanup_pending_aio(td); | |
2ba1c290 JA |
802 | |
803 | /* | |
804 | * stop job if we failed doing any IO | |
805 | */ | |
806 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
807 | td->done = 1; | |
ebac4655 JA |
808 | } |
809 | ||
ebac4655 JA |
810 | static void cleanup_io_u(struct thread_data *td) |
811 | { | |
01743ee1 | 812 | struct flist_head *entry, *n; |
ebac4655 JA |
813 | struct io_u *io_u; |
814 | ||
01743ee1 JA |
815 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
816 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 817 | |
01743ee1 | 818 | flist_del(&io_u->list); |
91aea6ec | 819 | fio_memfree(io_u, sizeof(*io_u)); |
ebac4655 JA |
820 | } |
821 | ||
2f9ade3c | 822 | free_io_mem(td); |
ebac4655 JA |
823 | } |
824 | ||
825 | static int init_io_u(struct thread_data *td) | |
826 | { | |
827 | struct io_u *io_u; | |
a00735e6 | 828 | unsigned int max_bs; |
eb7ccf38 | 829 | int cl_align, i, max_units; |
ebac4655 JA |
830 | char *p; |
831 | ||
1e3c09af | 832 | max_units = td->o.iodepth; |
2dc1bbeb | 833 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
834 | td->orig_buffer_size = (unsigned long long) max_bs |
835 | * (unsigned long long) max_units; | |
836 | ||
837 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
838 | unsigned long bs; | |
74b025b0 | 839 | |
5ec10eaa JA |
840 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
841 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
842 | } | |
ebac4655 | 843 | |
c3990645 JA |
844 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
845 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
846 | return 1; | |
847 | } | |
848 | ||
2f9ade3c JA |
849 | if (allocate_io_mem(td)) |
850 | return 1; | |
ebac4655 | 851 | |
1c04bf78 JA |
852 | if (td->o.odirect || td->o.mem_align || |
853 | (td->io_ops->flags & FIO_RAWIO)) | |
d529ee19 | 854 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
b3f378e9 JA |
855 | else |
856 | p = td->orig_buffer; | |
857 | ||
eb7ccf38 JA |
858 | cl_align = os_cache_line_size(); |
859 | ||
ebac4655 | 860 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
861 | void *ptr; |
862 | ||
db1cd90b JA |
863 | if (td->terminate) |
864 | return 1; | |
eb7ccf38 | 865 | |
91aea6ec JA |
866 | ptr = fio_memalign(cl_align, sizeof(*io_u)); |
867 | if (!ptr) { | |
868 | log_err("fio: unable to allocate aligned memory\n"); | |
eb7ccf38 JA |
869 | break; |
870 | } | |
871 | ||
872 | io_u = ptr; | |
ebac4655 | 873 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 874 | INIT_FLIST_HEAD(&io_u->list); |
d529ee19 | 875 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
ebac4655 | 876 | |
b4c5e1ac JA |
877 | if (!(td->io_ops->flags & FIO_NOIO)) { |
878 | io_u->buf = p + max_bs * i; | |
d529ee19 | 879 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); |
e9459e5a | 880 | |
3545a109 | 881 | if (td_write(td)) |
5973cafb | 882 | io_u_fill_buffer(td, io_u, max_bs); |
3545a109 | 883 | if (td_write(td) && td->o.verify_pattern_bytes) { |
cbe8d756 RR |
884 | /* |
885 | * Fill the buffer with the pattern if we are | |
886 | * going to be doing writes. | |
887 | */ | |
7d9fb455 | 888 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
cbe8d756 | 889 | } |
b4c5e1ac | 890 | } |
6b9cea23 | 891 | |
b1ff3403 | 892 | io_u->index = i; |
0c6e7517 | 893 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 894 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
895 | } |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
da86774e JA |
900 | static int switch_ioscheduler(struct thread_data *td) |
901 | { | |
902 | char tmp[256], tmp2[128]; | |
903 | FILE *f; | |
904 | int ret; | |
905 | ||
ba0fbe10 | 906 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
907 | return 0; |
908 | ||
da86774e JA |
909 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
910 | ||
911 | f = fopen(tmp, "r+"); | |
912 | if (!f) { | |
cbf5c1d7 | 913 | if (errno == ENOENT) { |
5ec10eaa JA |
914 | log_err("fio: os or kernel doesn't support IO scheduler" |
915 | " switching\n"); | |
cbf5c1d7 JA |
916 | return 0; |
917 | } | |
918 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
919 | return 1; |
920 | } | |
921 | ||
922 | /* | |
923 | * Set io scheduler. | |
924 | */ | |
2dc1bbeb | 925 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 926 | if (ferror(f) || ret != 1) { |
e1161c32 | 927 | td_verror(td, errno, "fwrite"); |
da86774e JA |
928 | fclose(f); |
929 | return 1; | |
930 | } | |
931 | ||
932 | rewind(f); | |
933 | ||
934 | /* | |
935 | * Read back and check that the selected scheduler is now the default. | |
936 | */ | |
937 | ret = fread(tmp, 1, sizeof(tmp), f); | |
938 | if (ferror(f) || ret < 0) { | |
e1161c32 | 939 | td_verror(td, errno, "fread"); |
da86774e JA |
940 | fclose(f); |
941 | return 1; | |
942 | } | |
943 | ||
2dc1bbeb | 944 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 945 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 946 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 947 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
948 | fclose(f); |
949 | return 1; | |
950 | } | |
951 | ||
952 | fclose(f); | |
953 | return 0; | |
954 | } | |
955 | ||
492158cf JA |
956 | static int keep_running(struct thread_data *td) |
957 | { | |
958 | unsigned long long io_done; | |
959 | ||
20e354ef JA |
960 | if (td->done) |
961 | return 0; | |
492158cf JA |
962 | if (td->o.time_based) |
963 | return 1; | |
964 | if (td->o.loops) { | |
965 | td->o.loops--; | |
966 | return 1; | |
967 | } | |
968 | ||
5ec10eaa JA |
969 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
970 | + td->io_skip_bytes; | |
492158cf JA |
971 | if (io_done < td->o.size) |
972 | return 1; | |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
b29ee5b3 | 977 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 978 | { |
756867bd | 979 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 980 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 981 | td->zone_bytes = 0; |
581e7141 JA |
982 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
983 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
ebac4655 | 984 | |
c1324df1 JA |
985 | td->last_was_sync = 0; |
986 | ||
2ba1c290 JA |
987 | /* |
988 | * reset file done count if we are to start over | |
989 | */ | |
990 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 991 | td->nr_done_files = 0; |
b29ee5b3 JA |
992 | } |
993 | ||
994 | void reset_all_stats(struct thread_data *td) | |
995 | { | |
996 | struct timeval tv; | |
997 | int i; | |
998 | ||
999 | reset_io_counters(td); | |
1000 | ||
1001 | for (i = 0; i < 2; i++) { | |
1002 | td->io_bytes[i] = 0; | |
1003 | td->io_blocks[i] = 0; | |
1004 | td->io_issues[i] = 0; | |
1005 | td->ts.total_io_u[i] = 0; | |
1006 | } | |
9b836561 | 1007 | |
b29ee5b3 | 1008 | fio_gettime(&tv, NULL); |
cda99fa0 SSP |
1009 | td->ts.runtime[0] = 0; |
1010 | td->ts.runtime[1] = 0; | |
b29ee5b3 JA |
1011 | memcpy(&td->epoch, &tv, sizeof(tv)); |
1012 | memcpy(&td->start, &tv, sizeof(tv)); | |
1013 | } | |
1014 | ||
df9c26b1 | 1015 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
1016 | { |
1017 | struct fio_file *f; | |
1018 | unsigned int i; | |
b29ee5b3 JA |
1019 | |
1020 | reset_io_counters(td); | |
281f9b63 | 1021 | |
24ffd2c2 | 1022 | close_files(td); |
df9c26b1 | 1023 | for_each_file(td, f, i) |
d6aed795 | 1024 | fio_file_clear_done(f); |
f0153948 JA |
1025 | |
1026 | /* | |
1027 | * Set the same seed to get repeatable runs | |
1028 | */ | |
1029 | td_fill_rand_seeds(td); | |
ebac4655 JA |
1030 | } |
1031 | ||
398e8c4d JA |
1032 | static int exec_string(const char *string) |
1033 | { | |
1034 | int ret, newlen = strlen(string) + 1 + 8; | |
1035 | char *str; | |
1036 | ||
1037 | str = malloc(newlen); | |
1038 | sprintf(str, "sh -c %s", string); | |
1039 | ||
1040 | ret = system(str); | |
1041 | if (ret == -1) | |
1042 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1043 | ||
1044 | free(str); | |
1045 | return ret; | |
1046 | } | |
1047 | ||
906c8d75 JA |
1048 | /* |
1049 | * Entry point for the thread based jobs. The process based jobs end up | |
1050 | * here as well, after a little setup. | |
1051 | */ | |
ebac4655 JA |
1052 | static void *thread_main(void *data) |
1053 | { | |
cda99fa0 | 1054 | unsigned long long elapsed; |
ebac4655 | 1055 | struct thread_data *td = data; |
e8462bd8 | 1056 | pthread_condattr_t attr; |
a978ba68 | 1057 | int clear_state; |
ebac4655 | 1058 | |
47f767c1 | 1059 | if (!td->o.use_thread) { |
ebac4655 | 1060 | setsid(); |
47f767c1 JA |
1061 | td->pid = getpid(); |
1062 | } else | |
1063 | td->pid = gettid(); | |
ebac4655 | 1064 | |
5921e80c | 1065 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 1066 | |
01743ee1 JA |
1067 | INIT_FLIST_HEAD(&td->io_u_freelist); |
1068 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
1069 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
1070 | INIT_FLIST_HEAD(&td->io_log_list); | |
1071 | INIT_FLIST_HEAD(&td->io_hist_list); | |
e8462bd8 | 1072 | INIT_FLIST_HEAD(&td->verify_list); |
0d29de83 | 1073 | INIT_FLIST_HEAD(&td->trim_list); |
e8462bd8 | 1074 | pthread_mutex_init(&td->io_u_lock, NULL); |
bb5d7d0b | 1075 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 1076 | |
e8462bd8 JA |
1077 | pthread_condattr_init(&attr); |
1078 | pthread_cond_init(&td->verify_cond, &attr); | |
1079 | pthread_cond_init(&td->free_cond, &attr); | |
1080 | ||
db1cd90b | 1081 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 1082 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 1083 | fio_mutex_up(startup_mutex); |
29adda3c | 1084 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 1085 | fio_mutex_down(td->mutex); |
29adda3c | 1086 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
1087 | |
1088 | /* | |
cdd18ad8 | 1089 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
1090 | * eating a file descriptor |
1091 | */ | |
cdd18ad8 | 1092 | fio_mutex_remove(td->mutex); |
db1cd90b | 1093 | |
dfc6e751 SH |
1094 | /* |
1095 | * A new gid requires privilege, so we need to do this before setting | |
1096 | * the uid. | |
1097 | */ | |
e0b0d892 JA |
1098 | if (td->o.gid != -1U && setgid(td->o.gid)) { |
1099 | td_verror(td, errno, "setgid"); | |
1100 | goto err; | |
1101 | } | |
dfc6e751 SH |
1102 | if (td->o.uid != -1U && setuid(td->o.uid)) { |
1103 | td_verror(td, errno, "setuid"); | |
1104 | goto err; | |
1105 | } | |
e0b0d892 | 1106 | |
be18a94f JA |
1107 | /* |
1108 | * If we have a gettimeofday() thread, make sure we exclude that | |
1109 | * thread from this job | |
1110 | */ | |
1111 | if (td->o.gtod_cpu) | |
1112 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); | |
1113 | ||
1114 | /* | |
1115 | * Set affinity first, in case it has an impact on the memory | |
1116 | * allocations. | |
1117 | */ | |
1118 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { | |
1119 | td_verror(td, errno, "cpu_set_affinity"); | |
1120 | goto err; | |
1121 | } | |
1122 | ||
d84f8d49 JA |
1123 | /* |
1124 | * May alter parameters that init_io_u() will use, so we need to | |
1125 | * do this first. | |
1126 | */ | |
1127 | if (init_iolog(td)) | |
1128 | goto err; | |
1129 | ||
ebac4655 | 1130 | if (init_io_u(td)) |
db1cd90b | 1131 | goto err; |
ebac4655 | 1132 | |
e8462bd8 JA |
1133 | if (td->o.verify_async && verify_async_init(td)) |
1134 | goto err; | |
1135 | ||
ac684785 | 1136 | if (td->ioprio_set) { |
ebac4655 | 1137 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1138 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1139 | goto err; |
ebac4655 JA |
1140 | } |
1141 | } | |
1142 | ||
6adb38a1 | 1143 | if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
a696fa2a JA |
1144 | goto err; |
1145 | ||
2dc1bbeb | 1146 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1147 | td_verror(td, errno, "nice"); |
db1cd90b | 1148 | goto err; |
b6f4d880 JA |
1149 | } |
1150 | ||
2dc1bbeb | 1151 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1152 | goto err; |
37f56873 | 1153 | |
2dc1bbeb | 1154 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1155 | goto err; |
1156 | ||
7d6c5283 JA |
1157 | if (td_io_init(td)) |
1158 | goto err; | |
1159 | ||
68727076 JA |
1160 | if (init_random_map(td)) |
1161 | goto err; | |
1162 | ||
2dc1bbeb | 1163 | if (td->o.exec_prerun) { |
398e8c4d | 1164 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1165 | goto err; |
1166 | } | |
4e0ba8af | 1167 | |
afad68f7 ZY |
1168 | if (td->o.pre_read) { |
1169 | if (pre_read_files(td) < 0) | |
1170 | goto err; | |
1171 | } | |
1172 | ||
69008999 | 1173 | fio_gettime(&td->epoch, NULL); |
756867bd | 1174 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 | 1175 | |
a978ba68 | 1176 | clear_state = 0; |
492158cf | 1177 | while (keep_running(td)) { |
02bcaa8c | 1178 | fio_gettime(&td->start, NULL); |
c5d3d790 JA |
1179 | memcpy(&td->ts.stat_sample_time[0], &td->start, |
1180 | sizeof(td->start)); | |
1181 | memcpy(&td->ts.stat_sample_time[1], &td->start, | |
1182 | sizeof(td->start)); | |
993bf48b | 1183 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1184 | |
cf2dd8d6 | 1185 | if (td->o.ratemin[0] || td->o.ratemin[1]) |
5ec10eaa JA |
1186 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
1187 | sizeof(td->lastrate)); | |
ebac4655 | 1188 | |
df9c26b1 JA |
1189 | if (clear_state) |
1190 | clear_io_state(td); | |
a978ba68 | 1191 | |
ebac4655 JA |
1192 | prune_io_piece_log(td); |
1193 | ||
ba0fbe10 | 1194 | do_io(td); |
ebac4655 | 1195 | |
a978ba68 JA |
1196 | clear_state = 1; |
1197 | ||
38d77cae | 1198 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
0a4957c6 | 1199 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1200 | td->ts.runtime[DDIR_READ] += elapsed; |
38d77cae JA |
1201 | } |
1202 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
0a4957c6 | 1203 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1204 | td->ts.runtime[DDIR_WRITE] += elapsed; |
38d77cae | 1205 | } |
5ec10eaa | 1206 | |
ebac4655 JA |
1207 | if (td->error || td->terminate) |
1208 | break; | |
1209 | ||
e84c73a8 SL |
1210 | if (!td->o.do_verify || |
1211 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1212 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1213 | continue; |
1214 | ||
df9c26b1 | 1215 | clear_io_state(td); |
a978ba68 | 1216 | |
02bcaa8c | 1217 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1218 | |
1219 | do_verify(td); | |
1220 | ||
cda99fa0 | 1221 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1222 | |
1223 | if (td->error || td->terminate) | |
1224 | break; | |
1225 | } | |
1226 | ||
36dff966 | 1227 | update_rusage_stat(td); |
cda99fa0 SSP |
1228 | td->ts.runtime[0] = (td->ts.runtime[0] + 999) / 1000; |
1229 | td->ts.runtime[1] = (td->ts.runtime[1] + 999) / 1000; | |
756867bd JA |
1230 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1231 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1232 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1233 | ||
d2bbb8d9 | 1234 | fio_mutex_down(writeout_mutex); |
e3cedca7 | 1235 | if (td->ts.bw_log) { |
f484470b JA |
1236 | if (td->o.bw_log_file) { |
1237 | finish_log_named(td, td->ts.bw_log, | |
1238 | td->o.bw_log_file, "bw"); | |
1239 | } else | |
e3cedca7 JA |
1240 | finish_log(td, td->ts.bw_log, "bw"); |
1241 | } | |
02af0988 JA |
1242 | if (td->ts.lat_log) { |
1243 | if (td->o.lat_log_file) { | |
1244 | finish_log_named(td, td->ts.lat_log, | |
1245 | td->o.lat_log_file, "lat"); | |
1246 | } else | |
1247 | finish_log(td, td->ts.lat_log, "lat"); | |
1248 | } | |
e3cedca7 | 1249 | if (td->ts.slat_log) { |
f484470b JA |
1250 | if (td->o.lat_log_file) { |
1251 | finish_log_named(td, td->ts.slat_log, | |
1ca95738 | 1252 | td->o.lat_log_file, "slat"); |
f484470b | 1253 | } else |
e3cedca7 JA |
1254 | finish_log(td, td->ts.slat_log, "slat"); |
1255 | } | |
1256 | if (td->ts.clat_log) { | |
f484470b JA |
1257 | if (td->o.lat_log_file) { |
1258 | finish_log_named(td, td->ts.clat_log, | |
1259 | td->o.lat_log_file, "clat"); | |
1260 | } else | |
e3cedca7 JA |
1261 | finish_log(td, td->ts.clat_log, "clat"); |
1262 | } | |
d2bbb8d9 | 1263 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1264 | if (td->o.exec_postrun) |
1265 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1266 | |
1267 | if (exitall_on_terminate) | |
390c40e2 | 1268 | terminate_threads(td->groupid); |
ebac4655 JA |
1269 | |
1270 | err: | |
5bf13a5a | 1271 | if (td->error) |
4ceb30d4 | 1272 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1273 | td->verror); |
b4707ed7 JA |
1274 | |
1275 | if (td->o.verify_async) | |
1276 | verify_async_exit(td); | |
1277 | ||
24ffd2c2 | 1278 | close_and_free_files(td); |
2866c82d | 1279 | close_ioengine(td); |
ebac4655 | 1280 | cleanup_io_u(td); |
6adb38a1 | 1281 | cgroup_shutdown(td, &cgroup_mnt); |
f29b25a3 | 1282 | |
d2ce18b5 JA |
1283 | if (td->o.cpumask_set) { |
1284 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1285 | ||
1286 | td_verror(td, ret, "fio_cpuset_exit"); | |
1287 | } | |
4e78e405 | 1288 | |
f29b25a3 JA |
1289 | /* |
1290 | * do this very late, it will log file closing as well | |
1291 | */ | |
1292 | if (td->o.write_iolog_file) | |
1293 | write_iolog_close(td); | |
1294 | ||
d23bb327 | 1295 | options_mem_free(td); |
ebac4655 | 1296 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1297 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1298 | } |
1299 | ||
906c8d75 JA |
1300 | /* |
1301 | * We cannot pass the td data into a forked process, so attach the td and | |
1302 | * pass it to the thread worker. | |
1303 | */ | |
a6418147 | 1304 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1305 | { |
1306 | struct thread_data *td; | |
a6418147 | 1307 | void *data, *ret; |
ebac4655 | 1308 | |
65258961 | 1309 | #ifndef __hpux |
ebac4655 JA |
1310 | data = shmat(shmid, NULL, 0); |
1311 | if (data == (void *) -1) { | |
a6418147 JA |
1312 | int __err = errno; |
1313 | ||
ebac4655 | 1314 | perror("shmat"); |
a6418147 | 1315 | return __err; |
ebac4655 | 1316 | } |
65258961 JA |
1317 | #else |
1318 | /* | |
1319 | * HP-UX inherits shm mappings? | |
1320 | */ | |
1321 | data = threads; | |
1322 | #endif | |
ebac4655 JA |
1323 | |
1324 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1325 | ret = thread_main(td); |
ebac4655 | 1326 | shmdt(data); |
43d76807 | 1327 | return (int) (unsigned long) ret; |
ebac4655 JA |
1328 | } |
1329 | ||
906c8d75 JA |
1330 | /* |
1331 | * Run over the job map and reap the threads that have exited, if any. | |
1332 | */ | |
ebac4655 JA |
1333 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1334 | { | |
34572e28 | 1335 | struct thread_data *td; |
1f809d15 | 1336 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1337 | |
1338 | /* | |
1339 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1340 | */ | |
1f809d15 | 1341 | realthreads = pending = cputhreads = 0; |
34572e28 | 1342 | for_each_td(td, i) { |
3707f45b | 1343 | int flags = 0; |
a2f77c9f | 1344 | |
84585003 JA |
1345 | /* |
1346 | * ->io_ops is NULL for a thread that has closed its | |
1347 | * io engine | |
1348 | */ | |
ba0fbe10 | 1349 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1350 | cputhreads++; |
1f809d15 JA |
1351 | else |
1352 | realthreads++; | |
b990b5c0 | 1353 | |
a1dedc1f AC |
1354 | if (!td->pid) { |
1355 | pending++; | |
1356 | continue; | |
1357 | } | |
1358 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1359 | continue; |
2dc1bbeb | 1360 | if (td->o.use_thread) { |
3707f45b JA |
1361 | if (td->runstate == TD_EXITED) { |
1362 | td_set_runstate(td, TD_REAPED); | |
1363 | goto reaped; | |
1364 | } | |
1365 | continue; | |
1366 | } | |
a2f77c9f JA |
1367 | |
1368 | flags = WNOHANG; | |
1369 | if (td->runstate == TD_EXITED) | |
1370 | flags = 0; | |
1371 | ||
1372 | /* | |
1373 | * check if someone quit or got killed in an unusual way | |
1374 | */ | |
1375 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1376 | if (ret < 0) { |
a2f77c9f | 1377 | if (errno == ECHILD) { |
5921e80c JA |
1378 | log_err("fio: pid=%d disappeared %d\n", |
1379 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1380 | td_set_runstate(td, TD_REAPED); |
1381 | goto reaped; | |
1382 | } | |
1383 | perror("waitpid"); | |
1384 | } else if (ret == td->pid) { | |
1385 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1386 | int sig = WTERMSIG(status); |
1387 | ||
03e20d68 | 1388 | if (sig != SIGTERM) |
5ec10eaa | 1389 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1390 | (int) td->pid, sig); |
fab6aa71 JA |
1391 | td_set_runstate(td, TD_REAPED); |
1392 | goto reaped; | |
1393 | } | |
a2f77c9f JA |
1394 | if (WIFEXITED(status)) { |
1395 | if (WEXITSTATUS(status) && !td->error) | |
1396 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1397 | |
a2f77c9f JA |
1398 | td_set_runstate(td, TD_REAPED); |
1399 | goto reaped; | |
a6418147 JA |
1400 | } |
1401 | } | |
ebac4655 | 1402 | |
a2f77c9f JA |
1403 | /* |
1404 | * thread is not dead, continue | |
1405 | */ | |
e48676ba | 1406 | pending++; |
a2f77c9f | 1407 | continue; |
fab6aa71 | 1408 | reaped: |
ebac4655 | 1409 | (*nr_running)--; |
581e7141 JA |
1410 | (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); |
1411 | (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); | |
6f88bcb0 JA |
1412 | if (!td->pid) |
1413 | pending--; | |
a2f77c9f JA |
1414 | |
1415 | if (td->error) | |
1416 | exit_value++; | |
d3eeeabc JA |
1417 | |
1418 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1419 | } |
b990b5c0 | 1420 | |
1f809d15 | 1421 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1422 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1423 | } |
1424 | ||
be4ecfdf JA |
1425 | static void *gtod_thread_main(void *data) |
1426 | { | |
1427 | fio_mutex_up(startup_mutex); | |
1428 | ||
1429 | /* | |
1430 | * As long as we have jobs around, update the clock. It would be nice | |
1431 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1432 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1433 | * it - we don't want to lose precision. | |
1434 | */ | |
1435 | while (threads) { | |
1436 | fio_gtod_update(); | |
1437 | nop; | |
1438 | } | |
1439 | ||
1440 | return NULL; | |
1441 | } | |
1442 | ||
1443 | static int fio_start_gtod_thread(void) | |
1444 | { | |
304a47c7 | 1445 | pthread_attr_t attr; |
f42c153d JA |
1446 | int ret; |
1447 | ||
304a47c7 VA |
1448 | pthread_attr_init(&attr); |
1449 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
1450 | ret = pthread_create(>od_thread, &attr, gtod_thread_main, NULL); | |
1451 | pthread_attr_destroy(&attr); | |
f42c153d JA |
1452 | if (ret) { |
1453 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1454 | return 1; |
1455 | } | |
f42c153d JA |
1456 | |
1457 | ret = pthread_detach(gtod_thread); | |
1458 | if (ret) { | |
1459 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1460 | return 1; |
1461 | } | |
1462 | ||
29adda3c | 1463 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1464 | fio_mutex_down(startup_mutex); |
29adda3c | 1465 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1466 | return 0; |
1467 | } | |
1468 | ||
906c8d75 JA |
1469 | /* |
1470 | * Main function for kicking off and reaping jobs, as needed. | |
1471 | */ | |
ebac4655 JA |
1472 | static void run_threads(void) |
1473 | { | |
ebac4655 JA |
1474 | struct thread_data *td; |
1475 | unsigned long spent; | |
1476 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1477 | |
2f9ade3c JA |
1478 | if (fio_pin_memory()) |
1479 | return; | |
ebac4655 | 1480 | |
be4ecfdf JA |
1481 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1482 | return; | |
1483 | ||
c6ae0a5b | 1484 | if (!terse_output) { |
4ceb30d4 | 1485 | log_info("Starting "); |
9cedf167 | 1486 | if (nr_thread) |
4ceb30d4 | 1487 | log_info("%d thread%s", nr_thread, |
5ec10eaa | 1488 | nr_thread > 1 ? "s" : ""); |
9cedf167 JA |
1489 | if (nr_process) { |
1490 | if (nr_thread) | |
1491 | printf(" and "); | |
4ceb30d4 | 1492 | log_info("%d process%s", nr_process, |
5ec10eaa | 1493 | nr_process > 1 ? "es" : ""); |
9cedf167 | 1494 | } |
4ceb30d4 | 1495 | log_info("\n"); |
c6ae0a5b JA |
1496 | fflush(stdout); |
1497 | } | |
c04f7ec3 | 1498 | |
697a606c | 1499 | set_sig_handlers(); |
4efa970e | 1500 | |
ebac4655 JA |
1501 | todo = thread_number; |
1502 | nr_running = 0; | |
1503 | nr_started = 0; | |
1504 | m_rate = t_rate = 0; | |
1505 | ||
34572e28 | 1506 | for_each_td(td, i) { |
263e529f | 1507 | print_status_init(td->thread_number - 1); |
ebac4655 | 1508 | |
067430bb | 1509 | if (!td->o.create_serialize) |
ebac4655 JA |
1510 | continue; |
1511 | ||
1512 | /* | |
1513 | * do file setup here so it happens sequentially, | |
1514 | * we don't want X number of threads getting their | |
1515 | * client data interspersed on disk | |
1516 | */ | |
53cdc686 | 1517 | if (setup_files(td)) { |
5bf13a5a JA |
1518 | exit_value++; |
1519 | if (td->error) | |
5921e80c JA |
1520 | log_err("fio: pid=%d, err=%d/%s\n", |
1521 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1522 | td_set_runstate(td, TD_REAPED); |
1523 | todo--; | |
c69e8875 JA |
1524 | } else { |
1525 | struct fio_file *f; | |
2b13e716 | 1526 | unsigned int j; |
c69e8875 JA |
1527 | |
1528 | /* | |
1529 | * for sharing to work, each job must always open | |
1530 | * its own files. so close them, if we opened them | |
1531 | * for creation | |
1532 | */ | |
2b13e716 | 1533 | for_each_file(td, f, j) { |
22a57ba8 JA |
1534 | if (fio_file_open(f)) |
1535 | td_io_close_file(td, f); | |
22a57ba8 | 1536 | } |
5ec10eaa | 1537 | } |
ebac4655 JA |
1538 | } |
1539 | ||
a2f77c9f JA |
1540 | set_genesis_time(); |
1541 | ||
ebac4655 | 1542 | while (todo) { |
fca70358 | 1543 | struct thread_data *map[REAL_MAX_JOBS]; |
75154845 JA |
1544 | struct timeval this_start; |
1545 | int this_jobs = 0, left; | |
1546 | ||
ebac4655 JA |
1547 | /* |
1548 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1549 | */ | |
34572e28 | 1550 | for_each_td(td, i) { |
ebac4655 JA |
1551 | if (td->runstate != TD_NOT_CREATED) |
1552 | continue; | |
1553 | ||
1554 | /* | |
1555 | * never got a chance to start, killed by other | |
1556 | * thread for some reason | |
1557 | */ | |
1558 | if (td->terminate) { | |
1559 | todo--; | |
1560 | continue; | |
1561 | } | |
1562 | ||
2dc1bbeb | 1563 | if (td->o.start_delay) { |
263e529f | 1564 | spent = mtime_since_genesis(); |
ebac4655 | 1565 | |
2dc1bbeb | 1566 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1567 | continue; |
1568 | } | |
1569 | ||
6f88bcb0 JA |
1570 | if (td->o.stonewall && (nr_started || nr_running)) { |
1571 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1572 | td->o.name); | |
ebac4655 | 1573 | break; |
6f88bcb0 | 1574 | } |
ebac4655 | 1575 | |
067430bb JA |
1576 | init_disk_util(td); |
1577 | ||
75154845 JA |
1578 | /* |
1579 | * Set state to created. Thread will transition | |
1580 | * to TD_INITIALIZED when it's done setting up. | |
1581 | */ | |
ebac4655 | 1582 | td_set_runstate(td, TD_CREATED); |
75154845 | 1583 | map[this_jobs++] = td; |
ebac4655 JA |
1584 | nr_started++; |
1585 | ||
2dc1bbeb | 1586 | if (td->o.use_thread) { |
f42c153d JA |
1587 | int ret; |
1588 | ||
ee56ad50 | 1589 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1590 | ret = pthread_create(&td->thread, NULL, |
1591 | thread_main, td); | |
1592 | if (ret) { | |
1593 | log_err("pthread_create: %s\n", | |
1594 | strerror(ret)); | |
ebac4655 | 1595 | nr_started--; |
c8bb6faf | 1596 | break; |
ebac4655 | 1597 | } |
f42c153d JA |
1598 | ret = pthread_detach(td->thread); |
1599 | if (ret) | |
1600 | log_err("pthread_detach: %s", | |
1601 | strerror(ret)); | |
ebac4655 | 1602 | } else { |
5e1d306e | 1603 | pid_t pid; |
ee56ad50 | 1604 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1605 | pid = fork(); |
1606 | if (!pid) { | |
a6418147 JA |
1607 | int ret = fork_main(shm_id, i); |
1608 | ||
5e1d306e JA |
1609 | _exit(ret); |
1610 | } else if (i == fio_debug_jobno) | |
1611 | *fio_debug_jobp = pid; | |
ebac4655 | 1612 | } |
29adda3c | 1613 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
656b1393 JA |
1614 | if (fio_mutex_down_timeout(startup_mutex, 10)) { |
1615 | log_err("fio: job startup hung? exiting.\n"); | |
1616 | terminate_threads(TERMINATE_ALL); | |
1617 | fio_abort = 1; | |
1618 | nr_started--; | |
1619 | break; | |
1620 | } | |
29adda3c | 1621 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1622 | } |
1623 | ||
1624 | /* | |
75154845 JA |
1625 | * Wait for the started threads to transition to |
1626 | * TD_INITIALIZED. | |
ebac4655 | 1627 | */ |
02bcaa8c | 1628 | fio_gettime(&this_start, NULL); |
75154845 | 1629 | left = this_jobs; |
6ce15a32 | 1630 | while (left && !fio_abort) { |
75154845 JA |
1631 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1632 | break; | |
1633 | ||
1634 | usleep(100000); | |
1635 | ||
1636 | for (i = 0; i < this_jobs; i++) { | |
1637 | td = map[i]; | |
1638 | if (!td) | |
1639 | continue; | |
b6f4d880 | 1640 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1641 | map[i] = NULL; |
1642 | left--; | |
b6f4d880 JA |
1643 | } else if (td->runstate >= TD_EXITED) { |
1644 | map[i] = NULL; | |
1645 | left--; | |
1646 | todo--; | |
1647 | nr_running++; /* work-around... */ | |
75154845 JA |
1648 | } |
1649 | } | |
1650 | } | |
1651 | ||
1652 | if (left) { | |
3b70d7e5 | 1653 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1654 | for (i = 0; i < this_jobs; i++) { |
1655 | td = map[i]; | |
1656 | if (!td) | |
1657 | continue; | |
1658 | kill(td->pid, SIGTERM); | |
1659 | } | |
1660 | break; | |
1661 | } | |
1662 | ||
1663 | /* | |
b6f4d880 | 1664 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1665 | */ |
34572e28 | 1666 | for_each_td(td, i) { |
75154845 | 1667 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1668 | continue; |
1669 | ||
b29ee5b3 JA |
1670 | if (in_ramp_time(td)) |
1671 | td_set_runstate(td, TD_RAMP); | |
1672 | else | |
1673 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1674 | nr_running++; |
1675 | nr_started--; | |
581e7141 JA |
1676 | m_rate += td->o.ratemin[0] + td->o.ratemin[1]; |
1677 | t_rate += td->o.rate[0] + td->o.rate[1]; | |
75154845 | 1678 | todo--; |
cdd18ad8 | 1679 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1680 | } |
1681 | ||
1682 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1683 | ||
1684 | if (todo) | |
1685 | usleep(100000); | |
1686 | } | |
1687 | ||
1688 | while (nr_running) { | |
1689 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1690 | usleep(10000); | |
1691 | } | |
1692 | ||
1693 | update_io_ticks(); | |
2f9ade3c | 1694 | fio_unpin_memory(); |
ebac4655 JA |
1695 | } |
1696 | ||
50d16976 | 1697 | int exec_run(void) |
ebac4655 | 1698 | { |
07b3232d JA |
1699 | if (exec_profile && load_profile(exec_profile)) |
1700 | return 1; | |
1701 | ||
74929ac2 JA |
1702 | if (!thread_number) |
1703 | return 0; | |
1704 | ||
bb3884d8 JA |
1705 | if (write_bw_log) { |
1706 | setup_log(&agg_io_log[DDIR_READ]); | |
1707 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1708 | } | |
1709 | ||
cdd18ad8 | 1710 | startup_mutex = fio_mutex_init(0); |
03e20d68 BC |
1711 | if (startup_mutex == NULL) |
1712 | return 1; | |
d2bbb8d9 | 1713 | writeout_mutex = fio_mutex_init(1); |
03e20d68 BC |
1714 | if (writeout_mutex == NULL) |
1715 | return 1; | |
07739b57 | 1716 | |
a2f77c9f | 1717 | set_genesis_time(); |
7985701b | 1718 | create_disk_util_thread(); |
ebac4655 | 1719 | |
dae5341c JA |
1720 | cgroup_list = smalloc(sizeof(*cgroup_list)); |
1721 | INIT_FLIST_HEAD(cgroup_list); | |
1722 | ||
ebac4655 | 1723 | run_threads(); |
6ce15a32 | 1724 | |
bb3884d8 | 1725 | if (!fio_abort) { |
6ce15a32 | 1726 | show_run_stats(); |
bb3884d8 | 1727 | if (write_bw_log) { |
5ec10eaa JA |
1728 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1729 | __finish_log(agg_io_log[DDIR_WRITE], | |
1730 | "agg-write_bw.log"); | |
bb3884d8 JA |
1731 | } |
1732 | } | |
ebac4655 | 1733 | |
dae5341c JA |
1734 | cgroup_kill(cgroup_list); |
1735 | sfree(cgroup_list); | |
61eb313e | 1736 | sfree(cgroup_mnt); |
39f22027 | 1737 | |
cdd18ad8 | 1738 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1739 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1740 | return exit_value; |
ebac4655 | 1741 | } |
50d16976 JA |
1742 | |
1743 | void reset_fio_state(void) | |
1744 | { | |
1745 | groupid = 0; | |
1746 | thread_number = 0; | |
1747 | nr_process = 0; | |
1748 | nr_thread = 0; | |
1749 | done_secs = 0; | |
1750 | } | |
1751 | ||
1752 | int main(int argc, char *argv[], char *envp[]) | |
1753 | { | |
1754 | long ps; | |
1755 | ||
1756 | arch_init(envp); | |
1757 | ||
1758 | sinit(); | |
1759 | ||
1760 | /* | |
1761 | * We need locale for number printing, if it isn't set then just | |
1762 | * go with the US format. | |
1763 | */ | |
1764 | if (!getenv("LC_NUMERIC")) | |
1765 | setlocale(LC_NUMERIC, "en_US"); | |
1766 | ||
1767 | ps = sysconf(_SC_PAGESIZE); | |
1768 | if (ps < 0) { | |
1769 | log_err("Failed to get page size\n"); | |
1770 | return 1; | |
1771 | } | |
1772 | ||
1773 | page_size = ps; | |
1774 | page_mask = ps - 1; | |
1775 | ||
1776 | fio_keywords_init(); | |
1777 | ||
1778 | if (parse_options(argc, argv)) | |
1779 | return 1; | |
1780 | ||
1781 | return exec_run(); | |
1782 | } |