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" |
ebac4655 | 49 | |
cfc99db7 JA |
50 | unsigned long page_mask; |
51 | unsigned long page_size; | |
d529ee19 JA |
52 | |
53 | #define PAGE_ALIGN(buf) \ | |
29d610e1 | 54 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
ebac4655 JA |
55 | |
56 | int groupid = 0; | |
57 | int thread_number = 0; | |
9cedf167 JA |
58 | int nr_process = 0; |
59 | int nr_thread = 0; | |
ebac4655 | 60 | int shm_id = 0; |
53cdc686 | 61 | int temp_stall_ts; |
d3eeeabc | 62 | unsigned long done_secs = 0; |
ebac4655 | 63 | |
cdd18ad8 | 64 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 65 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 66 | static volatile int fio_abort; |
437c9b71 | 67 | static int exit_value; |
be4ecfdf | 68 | static pthread_t gtod_thread; |
7985701b | 69 | static pthread_t disk_util_thread; |
dae5341c | 70 | static struct flist_head *cgroup_list; |
6adb38a1 | 71 | static char *cgroup_mnt; |
ebac4655 | 72 | |
bb3884d8 JA |
73 | struct io_log *agg_io_log[2]; |
74 | ||
ebac4655 | 75 | #define TERMINATE_ALL (-1) |
75154845 | 76 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 77 | |
b29ee5b3 | 78 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 79 | { |
d8fab1b6 JA |
80 | if (td->runstate == runstate) |
81 | return; | |
82 | ||
5921e80c JA |
83 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
84 | td->runstate, runstate); | |
6ce15a32 JA |
85 | td->runstate = runstate; |
86 | } | |
87 | ||
390c40e2 | 88 | static void terminate_threads(int group_id) |
ebac4655 | 89 | { |
34572e28 | 90 | struct thread_data *td; |
ebac4655 JA |
91 | int i; |
92 | ||
6f88bcb0 JA |
93 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
94 | ||
34572e28 | 95 | for_each_td(td, i) { |
ebac4655 | 96 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 97 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 98 | td->o.name, (int) td->pid); |
ad830ed7 JA |
99 | td->terminate = 1; |
100 | td->o.start_delay = 0; | |
101 | ||
7a93ab19 JA |
102 | /* |
103 | * if the thread is running, just let it exit | |
104 | */ | |
105 | if (td->runstate < TD_RUNNING) | |
03e20d68 | 106 | kill(td->pid, SIGTERM); |
f63f7f3b JA |
107 | else { |
108 | struct ioengine_ops *ops = td->io_ops; | |
109 | ||
03e20d68 BC |
110 | if (ops && (ops->flags & FIO_SIGTERM)) |
111 | kill(td->pid, SIGTERM); | |
f63f7f3b | 112 | } |
ebac4655 JA |
113 | } |
114 | } | |
115 | } | |
116 | ||
5f8f9726 JA |
117 | /* |
118 | * Happens on thread runs with ctrl-c, ignore our own SIGQUIT | |
119 | */ | |
120 | static void sig_quit(int sig) | |
121 | { | |
122 | } | |
123 | ||
697a606c JA |
124 | static void sig_int(int sig) |
125 | { | |
126 | if (threads) { | |
4ceb30d4 | 127 | log_info("\nfio: terminating on signal %d\n", sig); |
5ec10eaa JA |
128 | fflush(stdout); |
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 JA |
141 | update_io_ticks(); |
142 | print_thread_status(); | |
143 | } | |
144 | ||
145 | return NULL; | |
a5b01f1b JA |
146 | } |
147 | ||
7985701b | 148 | static int create_disk_util_thread(void) |
a5b01f1b | 149 | { |
7985701b | 150 | int ret; |
a5b01f1b | 151 | |
69204d6e | 152 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
7985701b JA |
153 | if (ret) { |
154 | log_err("Can't create disk util thread: %s\n", strerror(ret)); | |
155 | return 1; | |
156 | } | |
a5b01f1b | 157 | |
7985701b JA |
158 | ret = pthread_detach(disk_util_thread); |
159 | if (ret) { | |
160 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); | |
161 | return 1; | |
162 | } | |
03e20d68 | 163 | |
7985701b JA |
164 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
165 | fio_mutex_down(startup_mutex); | |
166 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
167 | return 0; | |
a5b01f1b JA |
168 | } |
169 | ||
697a606c JA |
170 | static void set_sig_handlers(void) |
171 | { | |
172 | struct sigaction act; | |
173 | ||
697a606c JA |
174 | memset(&act, 0, sizeof(act)); |
175 | act.sa_handler = sig_int; | |
176 | act.sa_flags = SA_RESTART; | |
177 | sigaction(SIGINT, &act, NULL); | |
de79c915 | 178 | |
5f8f9726 JA |
179 | memset(&act, 0, sizeof(act)); |
180 | act.sa_handler = sig_quit; | |
181 | act.sa_flags = SA_RESTART; | |
03e20d68 | 182 | sigaction(SIGTERM, &act, NULL); |
697a606c JA |
183 | } |
184 | ||
906c8d75 JA |
185 | /* |
186 | * Check if we are above the minimum rate given. | |
187 | */ | |
581e7141 JA |
188 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
189 | enum td_ddir ddir) | |
ebac4655 | 190 | { |
0904200b | 191 | unsigned long long bytes = 0; |
4e991c23 | 192 | unsigned long iops = 0; |
ebac4655 JA |
193 | unsigned long spent; |
194 | unsigned long rate; | |
581e7141 JA |
195 | unsigned int ratemin = 0; |
196 | unsigned int rate_iops = 0; | |
197 | unsigned int rate_iops_min = 0; | |
ebac4655 | 198 | |
ff58fced JA |
199 | assert(ddir_rw(ddir)); |
200 | ||
d982d873 JA |
201 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
202 | return 0; | |
203 | ||
ebac4655 JA |
204 | /* |
205 | * allow a 2 second settle period in the beginning | |
206 | */ | |
207 | if (mtime_since(&td->start, now) < 2000) | |
208 | return 0; | |
209 | ||
581e7141 JA |
210 | iops += td->io_blocks[ddir]; |
211 | bytes += td->this_io_bytes[ddir]; | |
212 | ratemin += td->o.ratemin[ddir]; | |
213 | rate_iops += td->o.rate_iops[ddir]; | |
214 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
0904200b | 215 | |
ebac4655 JA |
216 | /* |
217 | * if rate blocks is set, sample is running | |
218 | */ | |
581e7141 JA |
219 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
220 | spent = mtime_since(&td->lastrate[ddir], now); | |
2dc1bbeb | 221 | if (spent < td->o.ratecycle) |
ebac4655 JA |
222 | return 0; |
223 | ||
581e7141 | 224 | if (td->o.rate[ddir]) { |
4e991c23 JA |
225 | /* |
226 | * check bandwidth specified rate | |
227 | */ | |
581e7141 | 228 | if (bytes < td->rate_bytes[ddir]) { |
5ec10eaa | 229 | log_err("%s: min rate %u not met\n", td->o.name, |
581e7141 | 230 | ratemin); |
4e991c23 JA |
231 | return 1; |
232 | } else { | |
581e7141 JA |
233 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
234 | if (rate < ratemin || | |
235 | bytes < td->rate_bytes[ddir]) { | |
5ec10eaa | 236 | log_err("%s: min rate %u not met, got" |
b22989b9 | 237 | " %luKB/sec\n", td->o.name, |
581e7141 | 238 | ratemin, rate); |
4e991c23 JA |
239 | return 1; |
240 | } | |
241 | } | |
413dd459 | 242 | } else { |
4e991c23 JA |
243 | /* |
244 | * checks iops specified rate | |
245 | */ | |
581e7141 | 246 | if (iops < rate_iops) { |
5ec10eaa | 247 | log_err("%s: min iops rate %u not met\n", |
581e7141 | 248 | td->o.name, rate_iops); |
413dd459 | 249 | return 1; |
4e991c23 | 250 | } else { |
581e7141 JA |
251 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
252 | if (rate < rate_iops_min || | |
253 | iops < td->rate_blocks[ddir]) { | |
5ec10eaa JA |
254 | log_err("%s: min iops rate %u not met," |
255 | " got %lu\n", td->o.name, | |
581e7141 | 256 | rate_iops_min, rate); |
4e991c23 | 257 | } |
413dd459 | 258 | } |
ebac4655 JA |
259 | } |
260 | } | |
261 | ||
581e7141 JA |
262 | td->rate_bytes[ddir] = bytes; |
263 | td->rate_blocks[ddir] = iops; | |
264 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
ebac4655 JA |
265 | return 0; |
266 | } | |
267 | ||
581e7141 JA |
268 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
269 | unsigned long *bytes_done) | |
270 | { | |
271 | int ret = 0; | |
272 | ||
273 | if (bytes_done[0]) | |
274 | ret |= __check_min_rate(td, now, 0); | |
275 | if (bytes_done[1]) | |
276 | ret |= __check_min_rate(td, now, 1); | |
277 | ||
278 | return ret; | |
279 | } | |
280 | ||
ebac4655 JA |
281 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
282 | { | |
2dc1bbeb | 283 | if (!td->o.timeout) |
ebac4655 | 284 | return 0; |
2dc1bbeb | 285 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
286 | return 1; |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
906c8d75 JA |
291 | /* |
292 | * When job exits, we can cancel the in-flight IO if we are using async | |
293 | * io. Attempt to do so. | |
294 | */ | |
ebac4655 JA |
295 | static void cleanup_pending_aio(struct thread_data *td) |
296 | { | |
01743ee1 | 297 | struct flist_head *entry, *n; |
ebac4655 JA |
298 | struct io_u *io_u; |
299 | int r; | |
300 | ||
301 | /* | |
302 | * get immediately available events, if any | |
303 | */ | |
581e7141 | 304 | r = io_u_queued_complete(td, 0, NULL); |
b2fdda43 JA |
305 | if (r < 0) |
306 | return; | |
ebac4655 JA |
307 | |
308 | /* | |
309 | * now cancel remaining active events | |
310 | */ | |
2866c82d | 311 | if (td->io_ops->cancel) { |
01743ee1 JA |
312 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
313 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 314 | |
0c6e7517 JA |
315 | /* |
316 | * if the io_u isn't in flight, then that generally | |
317 | * means someone leaked an io_u. complain but fix | |
318 | * it up, so we don't stall here. | |
319 | */ | |
320 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
321 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 322 | put_io_u(td, io_u); |
0c6e7517 JA |
323 | } else { |
324 | r = td->io_ops->cancel(td, io_u); | |
325 | if (!r) | |
326 | put_io_u(td, io_u); | |
327 | } | |
ebac4655 JA |
328 | } |
329 | } | |
330 | ||
97601024 | 331 | if (td->cur_depth) |
581e7141 | 332 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
ebac4655 JA |
333 | } |
334 | ||
858a3d47 JA |
335 | /* |
336 | * Helper to handle the final sync of a file. Works just like the normal | |
337 | * io path, just does everything sync. | |
338 | */ | |
339 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
340 | { | |
341 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
342 | int ret; |
343 | ||
344 | if (!io_u) | |
345 | return 1; | |
346 | ||
347 | io_u->ddir = DDIR_SYNC; | |
348 | io_u->file = f; | |
349 | ||
350 | if (td_io_prep(td, io_u)) { | |
351 | put_io_u(td, io_u); | |
352 | return 1; | |
353 | } | |
354 | ||
755200a3 | 355 | requeue: |
858a3d47 | 356 | ret = td_io_queue(td, io_u); |
36167d82 | 357 | if (ret < 0) { |
e1161c32 | 358 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 359 | put_io_u(td, io_u); |
858a3d47 | 360 | return 1; |
36167d82 | 361 | } else if (ret == FIO_Q_QUEUED) { |
581e7141 | 362 | if (io_u_queued_complete(td, 1, NULL) < 0) |
36167d82 | 363 | return 1; |
36167d82 JA |
364 | } else if (ret == FIO_Q_COMPLETED) { |
365 | if (io_u->error) { | |
e1161c32 | 366 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
367 | return 1; |
368 | } | |
858a3d47 | 369 | |
581e7141 | 370 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
b2fdda43 | 371 | return 1; |
755200a3 JA |
372 | } else if (ret == FIO_Q_BUSY) { |
373 | if (td_io_commit(td)) | |
374 | return 1; | |
375 | goto requeue; | |
858a3d47 JA |
376 | } |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
993bf48b JA |
381 | static inline void update_tv_cache(struct thread_data *td) |
382 | { | |
383 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
384 | fio_gettime(&td->tv_cache, NULL); | |
385 | } | |
386 | ||
f2bba182 RR |
387 | static int break_on_this_error(struct thread_data *td, int *retptr) |
388 | { | |
389 | int ret = *retptr; | |
390 | ||
391 | if (ret < 0 || td->error) { | |
392 | int err; | |
393 | ||
1ec99eea JA |
394 | if (!td->o.continue_on_error) |
395 | return 1; | |
f2bba182 RR |
396 | |
397 | if (ret < 0) | |
398 | err = -ret; | |
399 | else | |
400 | err = td->error; | |
401 | ||
f2bba182 RR |
402 | if (td_non_fatal_error(err)) { |
403 | /* | |
404 | * Continue with the I/Os in case of | |
405 | * a non fatal error. | |
406 | */ | |
8a4f8a24 | 407 | update_error_count(td, err); |
f2bba182 RR |
408 | td_clear_error(td); |
409 | *retptr = 0; | |
410 | return 0; | |
8a4f8a24 RR |
411 | } else if (td->o.fill_device && err == ENOSPC) { |
412 | /* | |
413 | * We expect to hit this error if | |
414 | * fill_device option is set. | |
415 | */ | |
416 | td_clear_error(td); | |
417 | td->terminate = 1; | |
418 | return 1; | |
f2bba182 RR |
419 | } else { |
420 | /* | |
421 | * Stop the I/O in case of a fatal | |
422 | * error. | |
423 | */ | |
8a4f8a24 | 424 | update_error_count(td, err); |
f2bba182 RR |
425 | return 1; |
426 | } | |
427 | } | |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
906c8d75 | 432 | /* |
34403fb1 | 433 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
434 | * reads the blocks back in, and checks the crc/md5 of the data. |
435 | */ | |
1e97cce9 | 436 | static void do_verify(struct thread_data *td) |
ebac4655 | 437 | { |
53cdc686 | 438 | struct fio_file *f; |
36167d82 | 439 | struct io_u *io_u; |
af52b345 JA |
440 | int ret, min_events; |
441 | unsigned int i; | |
e5b401d4 | 442 | |
008618a8 JA |
443 | dprint(FD_VERIFY, "starting loop\n"); |
444 | ||
e5b401d4 JA |
445 | /* |
446 | * sync io first and invalidate cache, to make sure we really | |
447 | * read from disk. | |
448 | */ | |
449 | for_each_file(td, f, i) { | |
d6aed795 | 450 | if (!fio_file_open(f)) |
3d7b485f | 451 | continue; |
b2fdda43 JA |
452 | if (fio_io_sync(td, f)) |
453 | break; | |
454 | if (file_invalidate_cache(td, f)) | |
455 | break; | |
e5b401d4 | 456 | } |
ebac4655 | 457 | |
b2fdda43 JA |
458 | if (td->error) |
459 | return; | |
460 | ||
ebac4655 JA |
461 | td_set_runstate(td, TD_VERIFYING); |
462 | ||
36167d82 JA |
463 | io_u = NULL; |
464 | while (!td->terminate) { | |
4950421a | 465 | int ret2, full; |
5451792e | 466 | |
993bf48b JA |
467 | update_tv_cache(td); |
468 | ||
469 | if (runtime_exceeded(td, &td->tv_cache)) { | |
90a87d4b | 470 | td->terminate = 1; |
02bcaa8c | 471 | break; |
069c2918 | 472 | } |
02bcaa8c | 473 | |
dcb4830d RR |
474 | io_u = __get_io_u(td); |
475 | if (!io_u) | |
476 | break; | |
477 | ||
069c2918 JA |
478 | if (get_next_verify(td, io_u)) { |
479 | put_io_u(td, io_u); | |
ebac4655 | 480 | break; |
069c2918 | 481 | } |
ebac4655 | 482 | |
069c2918 JA |
483 | if (td_io_prep(td, io_u)) { |
484 | put_io_u(td, io_u); | |
53cdc686 | 485 | break; |
069c2918 | 486 | } |
d7762cf8 | 487 | |
e8462bd8 JA |
488 | if (td->o.verify_async) |
489 | io_u->end_io = verify_io_u_async; | |
490 | else | |
491 | io_u->end_io = verify_io_u; | |
53cdc686 | 492 | |
11786802 | 493 | ret = td_io_queue(td, io_u); |
36167d82 JA |
494 | switch (ret) { |
495 | case FIO_Q_COMPLETED: | |
f2bba182 | 496 | if (io_u->error) { |
22819ec2 | 497 | ret = -io_u->error; |
f2bba182 RR |
498 | clear_io_u(td, io_u); |
499 | } else if (io_u->resid) { | |
36167d82 | 500 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 501 | |
9e9d164e JA |
502 | /* |
503 | * zero read, fail | |
504 | */ | |
505 | if (!bytes) { | |
41d9f0fd | 506 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
507 | put_io_u(td, io_u); |
508 | break; | |
509 | } | |
8400d9b2 | 510 | |
36167d82 JA |
511 | io_u->xfer_buflen = io_u->resid; |
512 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
513 | io_u->offset += bytes; |
514 | ||
ff58fced JA |
515 | if (ddir_rw(io_u->ddir)) |
516 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 517 | |
2b13e716 | 518 | f = io_u->file; |
d460eb31 | 519 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
520 | goto sync_done; |
521 | ||
11786802 JA |
522 | requeue_io_u(td, &io_u); |
523 | } else { | |
8400d9b2 | 524 | sync_done: |
581e7141 | 525 | ret = io_u_sync_complete(td, io_u, NULL); |
11786802 JA |
526 | if (ret < 0) |
527 | break; | |
36167d82 | 528 | } |
36167d82 JA |
529 | continue; |
530 | case FIO_Q_QUEUED: | |
531 | break; | |
755200a3 JA |
532 | case FIO_Q_BUSY: |
533 | requeue_io_u(td, &io_u); | |
5451792e JA |
534 | ret2 = td_io_commit(td); |
535 | if (ret2 < 0) | |
536 | ret = ret2; | |
755200a3 | 537 | break; |
36167d82 JA |
538 | default: |
539 | assert(ret < 0); | |
e1161c32 | 540 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
541 | break; |
542 | } | |
543 | ||
f2bba182 | 544 | if (break_on_this_error(td, &ret)) |
3af6ef39 JA |
545 | break; |
546 | ||
ebac4655 | 547 | /* |
3af6ef39 JA |
548 | * if we can queue more, do so. but check if there are |
549 | * completed io_u's first. | |
ebac4655 | 550 | */ |
4950421a JA |
551 | full = queue_full(td) || ret == FIO_Q_BUSY; |
552 | if (full || !td->o.iodepth_batch_complete) { | |
6a96276c RR |
553 | min_events = min(td->o.iodepth_batch_complete, |
554 | td->cur_depth); | |
4950421a | 555 | if (full && !min_events) |
838bc709 | 556 | min_events = 1; |
e916b390 | 557 | |
4950421a JA |
558 | do { |
559 | /* | |
560 | * Reap required number of io units, if any, | |
561 | * and do the verification on them through | |
562 | * the callback handler | |
563 | */ | |
581e7141 | 564 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
4950421a JA |
565 | ret = -1; |
566 | break; | |
567 | } | |
568 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
569 | } | |
570 | if (ret < 0) | |
ebac4655 | 571 | break; |
36167d82 | 572 | } |
ebac4655 | 573 | |
c01c0395 JA |
574 | if (!td->error) { |
575 | min_events = td->cur_depth; | |
576 | ||
577 | if (min_events) | |
581e7141 | 578 | ret = io_u_queued_complete(td, min_events, NULL); |
c01c0395 | 579 | } else |
ebac4655 JA |
580 | cleanup_pending_aio(td); |
581 | ||
582 | td_set_runstate(td, TD_RUNNING); | |
008618a8 JA |
583 | |
584 | dprint(FD_VERIFY, "exiting loop\n"); | |
ebac4655 JA |
585 | } |
586 | ||
32cd46a0 | 587 | /* |
906c8d75 | 588 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
589 | * and reaps them, checking for rate and errors along the way. |
590 | */ | |
ebac4655 JA |
591 | static void do_io(struct thread_data *td) |
592 | { | |
af52b345 JA |
593 | unsigned int i; |
594 | int ret = 0; | |
ebac4655 | 595 | |
b29ee5b3 JA |
596 | if (in_ramp_time(td)) |
597 | td_set_runstate(td, TD_RAMP); | |
598 | else | |
599 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 600 | |
457bf399 | 601 | while ( (td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
a917a8b3 | 602 | (!flist_empty(&td->trim_list)) || |
457bf399 | 603 | ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) ) { |
97601024 | 604 | struct timeval comp_time; |
581e7141 | 605 | unsigned long bytes_done[2] = { 0, 0 }; |
84585003 | 606 | int min_evts = 0; |
ebac4655 | 607 | struct io_u *io_u; |
4950421a | 608 | int ret2, full; |
ebac4655 JA |
609 | |
610 | if (td->terminate) | |
611 | break; | |
612 | ||
993bf48b | 613 | update_tv_cache(td); |
97601024 | 614 | |
993bf48b | 615 | if (runtime_exceeded(td, &td->tv_cache)) { |
90a87d4b | 616 | td->terminate = 1; |
97601024 JA |
617 | break; |
618 | } | |
36167d82 | 619 | |
dcb4830d RR |
620 | io_u = get_io_u(td); |
621 | if (!io_u) | |
622 | break; | |
623 | ||
b67740d3 JA |
624 | /* |
625 | * Add verification end_io handler, if asked to verify | |
626 | * a previously written file. | |
627 | */ | |
715d2b3e JA |
628 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && |
629 | !td_rw(td)) { | |
e8462bd8 JA |
630 | if (td->o.verify_async) |
631 | io_u->end_io = verify_io_u_async; | |
632 | else | |
633 | io_u->end_io = verify_io_u; | |
d8fab1b6 | 634 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
635 | } else if (in_ramp_time(td)) |
636 | td_set_runstate(td, TD_RAMP); | |
637 | else | |
d8fab1b6 | 638 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 639 | |
11786802 | 640 | ret = td_io_queue(td, io_u); |
36167d82 JA |
641 | switch (ret) { |
642 | case FIO_Q_COMPLETED: | |
f2bba182 | 643 | if (io_u->error) { |
5451792e | 644 | ret = -io_u->error; |
f2bba182 RR |
645 | clear_io_u(td, io_u); |
646 | } else if (io_u->resid) { | |
36167d82 | 647 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 648 | struct fio_file *f = io_u->file; |
36167d82 | 649 | |
9e9d164e JA |
650 | /* |
651 | * zero read, fail | |
652 | */ | |
653 | if (!bytes) { | |
41d9f0fd | 654 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
655 | put_io_u(td, io_u); |
656 | break; | |
657 | } | |
658 | ||
cec6b55d | 659 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 660 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
661 | io_u->offset += bytes; |
662 | ||
ff58fced JA |
663 | if (ddir_rw(io_u->ddir)) |
664 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 665 | |
d460eb31 | 666 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
667 | goto sync_done; |
668 | ||
11786802 JA |
669 | requeue_io_u(td, &io_u); |
670 | } else { | |
5a7c5680 | 671 | sync_done: |
581e7141 JA |
672 | if (__should_check_rate(td, 0) || |
673 | __should_check_rate(td, 1)) | |
993bf48b JA |
674 | fio_gettime(&comp_time, NULL); |
675 | ||
581e7141 JA |
676 | ret = io_u_sync_complete(td, io_u, bytes_done); |
677 | if (ret < 0) | |
678 | break; | |
cec6b55d | 679 | } |
36167d82 JA |
680 | break; |
681 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
682 | /* |
683 | * if the engine doesn't have a commit hook, | |
684 | * the io_u is really queued. if it does have such | |
685 | * a hook, it has to call io_u_queued() itself. | |
686 | */ | |
687 | if (td->io_ops->commit == NULL) | |
688 | io_u_queued(td, io_u); | |
36167d82 | 689 | break; |
755200a3 JA |
690 | case FIO_Q_BUSY: |
691 | requeue_io_u(td, &io_u); | |
5451792e JA |
692 | ret2 = td_io_commit(td); |
693 | if (ret2 < 0) | |
694 | ret = ret2; | |
755200a3 | 695 | break; |
36167d82 JA |
696 | default: |
697 | assert(ret < 0); | |
698 | put_io_u(td, io_u); | |
699 | break; | |
ebac4655 JA |
700 | } |
701 | ||
f2bba182 | 702 | if (break_on_this_error(td, &ret)) |
36167d82 JA |
703 | break; |
704 | ||
97601024 JA |
705 | /* |
706 | * See if we need to complete some commands | |
707 | */ | |
4950421a JA |
708 | full = queue_full(td) || ret == FIO_Q_BUSY; |
709 | if (full || !td->o.iodepth_batch_complete) { | |
6a96276c RR |
710 | min_evts = min(td->o.iodepth_batch_complete, |
711 | td->cur_depth); | |
4950421a | 712 | if (full && !min_evts) |
36167d82 | 713 | min_evts = 1; |
4950421a | 714 | |
581e7141 JA |
715 | if (__should_check_rate(td, 0) || |
716 | __should_check_rate(td, 1)) | |
993bf48b | 717 | fio_gettime(&comp_time, NULL); |
4950421a JA |
718 | |
719 | do { | |
581e7141 JA |
720 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
721 | if (ret < 0) | |
4950421a JA |
722 | break; |
723 | ||
4950421a | 724 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
ebac4655 JA |
725 | } |
726 | ||
4950421a JA |
727 | if (ret < 0) |
728 | break; | |
581e7141 | 729 | if (!(bytes_done[0] + bytes_done[1])) |
97601024 JA |
730 | continue; |
731 | ||
581e7141 JA |
732 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
733 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
721938ae JA |
734 | if (exitall_on_terminate) |
735 | terminate_threads(td->groupid); | |
736 | td_verror(td, EIO, "check_min_rate"); | |
737 | break; | |
738 | } | |
ebac4655 JA |
739 | } |
740 | ||
2dc1bbeb | 741 | if (td->o.thinktime) { |
9c1f7434 JA |
742 | unsigned long long b; |
743 | ||
744 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 745 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
746 | int left; |
747 | ||
2dc1bbeb | 748 | if (td->o.thinktime_spin) |
6dd6f2cd | 749 | usec_spin(td->o.thinktime_spin); |
48097d5c | 750 | |
2dc1bbeb | 751 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
752 | if (left) |
753 | usec_sleep(td, left); | |
754 | } | |
9c1f7434 | 755 | } |
ebac4655 JA |
756 | } |
757 | ||
d708ac5e JA |
758 | if (td->trim_entries) |
759 | printf("trim entries %ld\n", td->trim_entries); | |
a917a8b3 | 760 | |
aa31f1f1 SL |
761 | if (td->o.fill_device && td->error == ENOSPC) { |
762 | td->error = 0; | |
763 | td->terminate = 1; | |
764 | } | |
4d2413c6 | 765 | if (!td->error) { |
3d7c391d JA |
766 | struct fio_file *f; |
767 | ||
c01c0395 JA |
768 | i = td->cur_depth; |
769 | if (i) | |
581e7141 | 770 | ret = io_u_queued_complete(td, i, NULL); |
ebac4655 | 771 | |
2dc1bbeb | 772 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 773 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
774 | |
775 | for_each_file(td, f, i) { | |
d6aed795 | 776 | if (!fio_file_open(f)) |
3d7b485f | 777 | continue; |
858a3d47 | 778 | fio_io_sync(td, f); |
3d7b485f | 779 | } |
84585003 | 780 | } |
c01c0395 JA |
781 | } else |
782 | cleanup_pending_aio(td); | |
2ba1c290 JA |
783 | |
784 | /* | |
785 | * stop job if we failed doing any IO | |
786 | */ | |
787 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
788 | td->done = 1; | |
ebac4655 JA |
789 | } |
790 | ||
ebac4655 JA |
791 | static void cleanup_io_u(struct thread_data *td) |
792 | { | |
01743ee1 | 793 | struct flist_head *entry, *n; |
ebac4655 JA |
794 | struct io_u *io_u; |
795 | ||
01743ee1 JA |
796 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
797 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 798 | |
01743ee1 | 799 | flist_del(&io_u->list); |
91aea6ec | 800 | fio_memfree(io_u, sizeof(*io_u)); |
ebac4655 JA |
801 | } |
802 | ||
2f9ade3c | 803 | free_io_mem(td); |
ebac4655 JA |
804 | } |
805 | ||
806 | static int init_io_u(struct thread_data *td) | |
807 | { | |
808 | struct io_u *io_u; | |
a00735e6 | 809 | unsigned int max_bs; |
eb7ccf38 | 810 | int cl_align, i, max_units; |
ebac4655 JA |
811 | char *p; |
812 | ||
1e3c09af | 813 | max_units = td->o.iodepth; |
2dc1bbeb | 814 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
815 | td->orig_buffer_size = (unsigned long long) max_bs |
816 | * (unsigned long long) max_units; | |
817 | ||
818 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
819 | unsigned long bs; | |
74b025b0 | 820 | |
5ec10eaa JA |
821 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
822 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
823 | } | |
ebac4655 | 824 | |
c3990645 JA |
825 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
826 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
827 | return 1; | |
828 | } | |
829 | ||
2f9ade3c JA |
830 | if (allocate_io_mem(td)) |
831 | return 1; | |
ebac4655 | 832 | |
1c04bf78 JA |
833 | if (td->o.odirect || td->o.mem_align || |
834 | (td->io_ops->flags & FIO_RAWIO)) | |
d529ee19 | 835 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
b3f378e9 JA |
836 | else |
837 | p = td->orig_buffer; | |
838 | ||
eb7ccf38 JA |
839 | cl_align = os_cache_line_size(); |
840 | ||
ebac4655 | 841 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
842 | void *ptr; |
843 | ||
db1cd90b JA |
844 | if (td->terminate) |
845 | return 1; | |
eb7ccf38 | 846 | |
91aea6ec JA |
847 | ptr = fio_memalign(cl_align, sizeof(*io_u)); |
848 | if (!ptr) { | |
849 | log_err("fio: unable to allocate aligned memory\n"); | |
eb7ccf38 JA |
850 | break; |
851 | } | |
852 | ||
853 | io_u = ptr; | |
ebac4655 | 854 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 855 | INIT_FLIST_HEAD(&io_u->list); |
d529ee19 | 856 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
ebac4655 | 857 | |
b4c5e1ac JA |
858 | if (!(td->io_ops->flags & FIO_NOIO)) { |
859 | io_u->buf = p + max_bs * i; | |
d529ee19 | 860 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); |
e9459e5a | 861 | |
5973cafb JA |
862 | if (td_write(td) && !td->o.refill_buffers) |
863 | io_u_fill_buffer(td, io_u, max_bs); | |
cbe8d756 RR |
864 | else if (td_write(td) && td->o.verify_pattern_bytes) { |
865 | /* | |
866 | * Fill the buffer with the pattern if we are | |
867 | * going to be doing writes. | |
868 | */ | |
7d9fb455 | 869 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
cbe8d756 | 870 | } |
b4c5e1ac | 871 | } |
6b9cea23 | 872 | |
b1ff3403 | 873 | io_u->index = i; |
0c6e7517 | 874 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 875 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
876 | } |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
da86774e JA |
881 | static int switch_ioscheduler(struct thread_data *td) |
882 | { | |
883 | char tmp[256], tmp2[128]; | |
884 | FILE *f; | |
885 | int ret; | |
886 | ||
ba0fbe10 | 887 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
888 | return 0; |
889 | ||
da86774e JA |
890 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
891 | ||
892 | f = fopen(tmp, "r+"); | |
893 | if (!f) { | |
cbf5c1d7 | 894 | if (errno == ENOENT) { |
5ec10eaa JA |
895 | log_err("fio: os or kernel doesn't support IO scheduler" |
896 | " switching\n"); | |
cbf5c1d7 JA |
897 | return 0; |
898 | } | |
899 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
900 | return 1; |
901 | } | |
902 | ||
903 | /* | |
904 | * Set io scheduler. | |
905 | */ | |
2dc1bbeb | 906 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 907 | if (ferror(f) || ret != 1) { |
e1161c32 | 908 | td_verror(td, errno, "fwrite"); |
da86774e JA |
909 | fclose(f); |
910 | return 1; | |
911 | } | |
912 | ||
913 | rewind(f); | |
914 | ||
915 | /* | |
916 | * Read back and check that the selected scheduler is now the default. | |
917 | */ | |
918 | ret = fread(tmp, 1, sizeof(tmp), f); | |
919 | if (ferror(f) || ret < 0) { | |
e1161c32 | 920 | td_verror(td, errno, "fread"); |
da86774e JA |
921 | fclose(f); |
922 | return 1; | |
923 | } | |
924 | ||
2dc1bbeb | 925 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 926 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 927 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 928 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
929 | fclose(f); |
930 | return 1; | |
931 | } | |
932 | ||
933 | fclose(f); | |
934 | return 0; | |
935 | } | |
936 | ||
492158cf JA |
937 | static int keep_running(struct thread_data *td) |
938 | { | |
939 | unsigned long long io_done; | |
940 | ||
20e354ef JA |
941 | if (td->done) |
942 | return 0; | |
492158cf JA |
943 | if (td->o.time_based) |
944 | return 1; | |
945 | if (td->o.loops) { | |
946 | td->o.loops--; | |
947 | return 1; | |
948 | } | |
949 | ||
5ec10eaa JA |
950 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
951 | + td->io_skip_bytes; | |
492158cf JA |
952 | if (io_done < td->o.size) |
953 | return 1; | |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
b29ee5b3 | 958 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 959 | { |
756867bd | 960 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 961 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 962 | td->zone_bytes = 0; |
581e7141 JA |
963 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
964 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
ebac4655 | 965 | |
c1324df1 JA |
966 | td->last_was_sync = 0; |
967 | ||
2ba1c290 JA |
968 | /* |
969 | * reset file done count if we are to start over | |
970 | */ | |
971 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 972 | td->nr_done_files = 0; |
5bfc35d7 JA |
973 | |
974 | /* | |
975 | * Set the same seed to get repeatable runs | |
976 | */ | |
977 | td_fill_rand_seeds(td); | |
b29ee5b3 JA |
978 | } |
979 | ||
980 | void reset_all_stats(struct thread_data *td) | |
981 | { | |
982 | struct timeval tv; | |
983 | int i; | |
984 | ||
985 | reset_io_counters(td); | |
986 | ||
987 | for (i = 0; i < 2; i++) { | |
988 | td->io_bytes[i] = 0; | |
989 | td->io_blocks[i] = 0; | |
990 | td->io_issues[i] = 0; | |
991 | td->ts.total_io_u[i] = 0; | |
992 | } | |
9b836561 | 993 | |
b29ee5b3 | 994 | fio_gettime(&tv, NULL); |
cda99fa0 SSP |
995 | td->ts.runtime[0] = 0; |
996 | td->ts.runtime[1] = 0; | |
b29ee5b3 JA |
997 | memcpy(&td->epoch, &tv, sizeof(tv)); |
998 | memcpy(&td->start, &tv, sizeof(tv)); | |
999 | } | |
1000 | ||
df9c26b1 | 1001 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
1002 | { |
1003 | struct fio_file *f; | |
1004 | unsigned int i; | |
b29ee5b3 JA |
1005 | |
1006 | reset_io_counters(td); | |
281f9b63 | 1007 | |
24ffd2c2 | 1008 | close_files(td); |
df9c26b1 | 1009 | for_each_file(td, f, i) |
d6aed795 | 1010 | fio_file_clear_done(f); |
ebac4655 JA |
1011 | } |
1012 | ||
398e8c4d JA |
1013 | static int exec_string(const char *string) |
1014 | { | |
1015 | int ret, newlen = strlen(string) + 1 + 8; | |
1016 | char *str; | |
1017 | ||
1018 | str = malloc(newlen); | |
1019 | sprintf(str, "sh -c %s", string); | |
1020 | ||
1021 | ret = system(str); | |
1022 | if (ret == -1) | |
1023 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1024 | ||
1025 | free(str); | |
1026 | return ret; | |
1027 | } | |
1028 | ||
906c8d75 JA |
1029 | /* |
1030 | * Entry point for the thread based jobs. The process based jobs end up | |
1031 | * here as well, after a little setup. | |
1032 | */ | |
ebac4655 JA |
1033 | static void *thread_main(void *data) |
1034 | { | |
cda99fa0 | 1035 | unsigned long long elapsed; |
ebac4655 | 1036 | struct thread_data *td = data; |
e8462bd8 | 1037 | pthread_condattr_t attr; |
a978ba68 | 1038 | int clear_state; |
ebac4655 | 1039 | |
2dc1bbeb | 1040 | if (!td->o.use_thread) |
ebac4655 JA |
1041 | setsid(); |
1042 | ||
1043 | td->pid = getpid(); | |
1044 | ||
5921e80c | 1045 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 1046 | |
01743ee1 JA |
1047 | INIT_FLIST_HEAD(&td->io_u_freelist); |
1048 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
1049 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
1050 | INIT_FLIST_HEAD(&td->io_log_list); | |
1051 | INIT_FLIST_HEAD(&td->io_hist_list); | |
e8462bd8 | 1052 | INIT_FLIST_HEAD(&td->verify_list); |
0d29de83 | 1053 | INIT_FLIST_HEAD(&td->trim_list); |
e8462bd8 | 1054 | pthread_mutex_init(&td->io_u_lock, NULL); |
bb5d7d0b | 1055 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 1056 | |
e8462bd8 JA |
1057 | pthread_condattr_init(&attr); |
1058 | pthread_cond_init(&td->verify_cond, &attr); | |
1059 | pthread_cond_init(&td->free_cond, &attr); | |
1060 | ||
db1cd90b | 1061 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 1062 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 1063 | fio_mutex_up(startup_mutex); |
29adda3c | 1064 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 1065 | fio_mutex_down(td->mutex); |
29adda3c | 1066 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
1067 | |
1068 | /* | |
cdd18ad8 | 1069 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
1070 | * eating a file descriptor |
1071 | */ | |
cdd18ad8 | 1072 | fio_mutex_remove(td->mutex); |
db1cd90b | 1073 | |
dfc6e751 SH |
1074 | /* |
1075 | * A new gid requires privilege, so we need to do this before setting | |
1076 | * the uid. | |
1077 | */ | |
e0b0d892 JA |
1078 | if (td->o.gid != -1U && setgid(td->o.gid)) { |
1079 | td_verror(td, errno, "setgid"); | |
1080 | goto err; | |
1081 | } | |
dfc6e751 SH |
1082 | if (td->o.uid != -1U && setuid(td->o.uid)) { |
1083 | td_verror(td, errno, "setuid"); | |
1084 | goto err; | |
1085 | } | |
e0b0d892 | 1086 | |
d84f8d49 JA |
1087 | /* |
1088 | * May alter parameters that init_io_u() will use, so we need to | |
1089 | * do this first. | |
1090 | */ | |
1091 | if (init_iolog(td)) | |
1092 | goto err; | |
1093 | ||
ebac4655 | 1094 | if (init_io_u(td)) |
db1cd90b | 1095 | goto err; |
ebac4655 | 1096 | |
e8462bd8 JA |
1097 | if (td->o.verify_async && verify_async_init(td)) |
1098 | goto err; | |
1099 | ||
1100 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { | |
e1161c32 | 1101 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 1102 | goto err; |
ebac4655 JA |
1103 | } |
1104 | ||
f484470b JA |
1105 | /* |
1106 | * If we have a gettimeofday() thread, make sure we exclude that | |
1107 | * thread from this job | |
1108 | */ | |
be4ecfdf | 1109 | if (td->o.gtod_cpu) { |
be4ecfdf | 1110 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); |
e8462bd8 | 1111 | if (fio_setaffinity(td->pid, td->o.cpumask) == -1) { |
be4ecfdf JA |
1112 | td_verror(td, errno, "cpu_set_affinity"); |
1113 | goto err; | |
1114 | } | |
1115 | } | |
1116 | ||
ac684785 | 1117 | if (td->ioprio_set) { |
ebac4655 | 1118 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1119 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1120 | goto err; |
ebac4655 JA |
1121 | } |
1122 | } | |
1123 | ||
6adb38a1 | 1124 | if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
a696fa2a JA |
1125 | goto err; |
1126 | ||
2dc1bbeb | 1127 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1128 | td_verror(td, errno, "nice"); |
db1cd90b | 1129 | goto err; |
b6f4d880 JA |
1130 | } |
1131 | ||
2dc1bbeb | 1132 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1133 | goto err; |
37f56873 | 1134 | |
2dc1bbeb | 1135 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1136 | goto err; |
1137 | ||
7d6c5283 JA |
1138 | if (td_io_init(td)) |
1139 | goto err; | |
1140 | ||
68727076 JA |
1141 | if (init_random_map(td)) |
1142 | goto err; | |
1143 | ||
2dc1bbeb | 1144 | if (td->o.exec_prerun) { |
398e8c4d | 1145 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1146 | goto err; |
1147 | } | |
4e0ba8af | 1148 | |
afad68f7 ZY |
1149 | if (td->o.pre_read) { |
1150 | if (pre_read_files(td) < 0) | |
1151 | goto err; | |
1152 | } | |
1153 | ||
69008999 | 1154 | fio_gettime(&td->epoch, NULL); |
756867bd | 1155 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 | 1156 | |
a978ba68 | 1157 | clear_state = 0; |
492158cf | 1158 | while (keep_running(td)) { |
02bcaa8c | 1159 | fio_gettime(&td->start, NULL); |
c5d3d790 JA |
1160 | memcpy(&td->ts.stat_sample_time[0], &td->start, |
1161 | sizeof(td->start)); | |
1162 | memcpy(&td->ts.stat_sample_time[1], &td->start, | |
1163 | sizeof(td->start)); | |
993bf48b | 1164 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1165 | |
cf2dd8d6 | 1166 | if (td->o.ratemin[0] || td->o.ratemin[1]) |
5ec10eaa JA |
1167 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
1168 | sizeof(td->lastrate)); | |
ebac4655 | 1169 | |
df9c26b1 JA |
1170 | if (clear_state) |
1171 | clear_io_state(td); | |
a978ba68 | 1172 | |
ebac4655 JA |
1173 | prune_io_piece_log(td); |
1174 | ||
ba0fbe10 | 1175 | do_io(td); |
ebac4655 | 1176 | |
a978ba68 JA |
1177 | clear_state = 1; |
1178 | ||
38d77cae | 1179 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
0a4957c6 | 1180 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1181 | td->ts.runtime[DDIR_READ] += elapsed; |
38d77cae JA |
1182 | } |
1183 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
0a4957c6 | 1184 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1185 | td->ts.runtime[DDIR_WRITE] += elapsed; |
38d77cae | 1186 | } |
5ec10eaa | 1187 | |
ebac4655 JA |
1188 | if (td->error || td->terminate) |
1189 | break; | |
1190 | ||
e84c73a8 SL |
1191 | if (!td->o.do_verify || |
1192 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1193 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1194 | continue; |
1195 | ||
df9c26b1 | 1196 | clear_io_state(td); |
a978ba68 | 1197 | |
02bcaa8c | 1198 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1199 | |
1200 | do_verify(td); | |
1201 | ||
cda99fa0 | 1202 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1203 | |
1204 | if (td->error || td->terminate) | |
1205 | break; | |
1206 | } | |
1207 | ||
36dff966 | 1208 | update_rusage_stat(td); |
cda99fa0 SSP |
1209 | td->ts.runtime[0] = (td->ts.runtime[0] + 999) / 1000; |
1210 | td->ts.runtime[1] = (td->ts.runtime[1] + 999) / 1000; | |
756867bd JA |
1211 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1212 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1213 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1214 | ||
d2bbb8d9 | 1215 | fio_mutex_down(writeout_mutex); |
e3cedca7 | 1216 | if (td->ts.bw_log) { |
f484470b JA |
1217 | if (td->o.bw_log_file) { |
1218 | finish_log_named(td, td->ts.bw_log, | |
1219 | td->o.bw_log_file, "bw"); | |
1220 | } else | |
e3cedca7 JA |
1221 | finish_log(td, td->ts.bw_log, "bw"); |
1222 | } | |
02af0988 JA |
1223 | if (td->ts.lat_log) { |
1224 | if (td->o.lat_log_file) { | |
1225 | finish_log_named(td, td->ts.lat_log, | |
1226 | td->o.lat_log_file, "lat"); | |
1227 | } else | |
1228 | finish_log(td, td->ts.lat_log, "lat"); | |
1229 | } | |
e3cedca7 | 1230 | if (td->ts.slat_log) { |
f484470b JA |
1231 | if (td->o.lat_log_file) { |
1232 | finish_log_named(td, td->ts.slat_log, | |
1ca95738 | 1233 | td->o.lat_log_file, "slat"); |
f484470b | 1234 | } else |
e3cedca7 JA |
1235 | finish_log(td, td->ts.slat_log, "slat"); |
1236 | } | |
1237 | if (td->ts.clat_log) { | |
f484470b JA |
1238 | if (td->o.lat_log_file) { |
1239 | finish_log_named(td, td->ts.clat_log, | |
1240 | td->o.lat_log_file, "clat"); | |
1241 | } else | |
e3cedca7 JA |
1242 | finish_log(td, td->ts.clat_log, "clat"); |
1243 | } | |
d2bbb8d9 | 1244 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1245 | if (td->o.exec_postrun) |
1246 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1247 | |
1248 | if (exitall_on_terminate) | |
390c40e2 | 1249 | terminate_threads(td->groupid); |
ebac4655 JA |
1250 | |
1251 | err: | |
5bf13a5a | 1252 | if (td->error) |
4ceb30d4 | 1253 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1254 | td->verror); |
b4707ed7 JA |
1255 | |
1256 | if (td->o.verify_async) | |
1257 | verify_async_exit(td); | |
1258 | ||
24ffd2c2 | 1259 | close_and_free_files(td); |
2866c82d | 1260 | close_ioengine(td); |
ebac4655 | 1261 | cleanup_io_u(td); |
6adb38a1 | 1262 | cgroup_shutdown(td, &cgroup_mnt); |
f29b25a3 | 1263 | |
d2ce18b5 JA |
1264 | if (td->o.cpumask_set) { |
1265 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1266 | ||
1267 | td_verror(td, ret, "fio_cpuset_exit"); | |
1268 | } | |
4e78e405 | 1269 | |
f29b25a3 JA |
1270 | /* |
1271 | * do this very late, it will log file closing as well | |
1272 | */ | |
1273 | if (td->o.write_iolog_file) | |
1274 | write_iolog_close(td); | |
1275 | ||
d23bb327 | 1276 | options_mem_free(td); |
ebac4655 | 1277 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1278 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1279 | } |
1280 | ||
906c8d75 JA |
1281 | /* |
1282 | * We cannot pass the td data into a forked process, so attach the td and | |
1283 | * pass it to the thread worker. | |
1284 | */ | |
a6418147 | 1285 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1286 | { |
1287 | struct thread_data *td; | |
a6418147 | 1288 | void *data, *ret; |
ebac4655 JA |
1289 | |
1290 | data = shmat(shmid, NULL, 0); | |
1291 | if (data == (void *) -1) { | |
a6418147 JA |
1292 | int __err = errno; |
1293 | ||
ebac4655 | 1294 | perror("shmat"); |
a6418147 | 1295 | return __err; |
ebac4655 JA |
1296 | } |
1297 | ||
1298 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1299 | ret = thread_main(td); |
ebac4655 | 1300 | shmdt(data); |
43d76807 | 1301 | return (int) (unsigned long) ret; |
ebac4655 JA |
1302 | } |
1303 | ||
906c8d75 JA |
1304 | /* |
1305 | * Run over the job map and reap the threads that have exited, if any. | |
1306 | */ | |
ebac4655 JA |
1307 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1308 | { | |
34572e28 | 1309 | struct thread_data *td; |
1f809d15 | 1310 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1311 | |
1312 | /* | |
1313 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1314 | */ | |
1f809d15 | 1315 | realthreads = pending = cputhreads = 0; |
34572e28 | 1316 | for_each_td(td, i) { |
3707f45b | 1317 | int flags = 0; |
a2f77c9f | 1318 | |
84585003 JA |
1319 | /* |
1320 | * ->io_ops is NULL for a thread that has closed its | |
1321 | * io engine | |
1322 | */ | |
ba0fbe10 | 1323 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1324 | cputhreads++; |
1f809d15 JA |
1325 | else |
1326 | realthreads++; | |
b990b5c0 | 1327 | |
a1dedc1f AC |
1328 | if (!td->pid) { |
1329 | pending++; | |
1330 | continue; | |
1331 | } | |
1332 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1333 | continue; |
2dc1bbeb | 1334 | if (td->o.use_thread) { |
3707f45b JA |
1335 | if (td->runstate == TD_EXITED) { |
1336 | td_set_runstate(td, TD_REAPED); | |
1337 | goto reaped; | |
1338 | } | |
1339 | continue; | |
1340 | } | |
a2f77c9f JA |
1341 | |
1342 | flags = WNOHANG; | |
1343 | if (td->runstate == TD_EXITED) | |
1344 | flags = 0; | |
1345 | ||
1346 | /* | |
1347 | * check if someone quit or got killed in an unusual way | |
1348 | */ | |
1349 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1350 | if (ret < 0) { |
a2f77c9f | 1351 | if (errno == ECHILD) { |
5921e80c JA |
1352 | log_err("fio: pid=%d disappeared %d\n", |
1353 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1354 | td_set_runstate(td, TD_REAPED); |
1355 | goto reaped; | |
1356 | } | |
1357 | perror("waitpid"); | |
1358 | } else if (ret == td->pid) { | |
1359 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1360 | int sig = WTERMSIG(status); |
1361 | ||
03e20d68 | 1362 | if (sig != SIGTERM) |
5ec10eaa | 1363 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1364 | (int) td->pid, sig); |
fab6aa71 JA |
1365 | td_set_runstate(td, TD_REAPED); |
1366 | goto reaped; | |
1367 | } | |
a2f77c9f JA |
1368 | if (WIFEXITED(status)) { |
1369 | if (WEXITSTATUS(status) && !td->error) | |
1370 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1371 | |
a2f77c9f JA |
1372 | td_set_runstate(td, TD_REAPED); |
1373 | goto reaped; | |
a6418147 JA |
1374 | } |
1375 | } | |
ebac4655 | 1376 | |
a2f77c9f JA |
1377 | /* |
1378 | * thread is not dead, continue | |
1379 | */ | |
e48676ba | 1380 | pending++; |
a2f77c9f | 1381 | continue; |
fab6aa71 | 1382 | reaped: |
ebac4655 | 1383 | (*nr_running)--; |
581e7141 JA |
1384 | (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); |
1385 | (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); | |
6f88bcb0 JA |
1386 | if (!td->pid) |
1387 | pending--; | |
a2f77c9f JA |
1388 | |
1389 | if (td->error) | |
1390 | exit_value++; | |
d3eeeabc JA |
1391 | |
1392 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1393 | } |
b990b5c0 | 1394 | |
1f809d15 | 1395 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1396 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1397 | } |
1398 | ||
be4ecfdf JA |
1399 | static void *gtod_thread_main(void *data) |
1400 | { | |
1401 | fio_mutex_up(startup_mutex); | |
1402 | ||
1403 | /* | |
1404 | * As long as we have jobs around, update the clock. It would be nice | |
1405 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1406 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1407 | * it - we don't want to lose precision. | |
1408 | */ | |
1409 | while (threads) { | |
1410 | fio_gtod_update(); | |
1411 | nop; | |
1412 | } | |
1413 | ||
1414 | return NULL; | |
1415 | } | |
1416 | ||
1417 | static int fio_start_gtod_thread(void) | |
1418 | { | |
304a47c7 | 1419 | pthread_attr_t attr; |
f42c153d JA |
1420 | int ret; |
1421 | ||
304a47c7 VA |
1422 | pthread_attr_init(&attr); |
1423 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
1424 | ret = pthread_create(>od_thread, &attr, gtod_thread_main, NULL); | |
1425 | pthread_attr_destroy(&attr); | |
f42c153d JA |
1426 | if (ret) { |
1427 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1428 | return 1; |
1429 | } | |
f42c153d JA |
1430 | |
1431 | ret = pthread_detach(gtod_thread); | |
1432 | if (ret) { | |
1433 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1434 | return 1; |
1435 | } | |
1436 | ||
29adda3c | 1437 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1438 | fio_mutex_down(startup_mutex); |
29adda3c | 1439 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1440 | return 0; |
1441 | } | |
1442 | ||
906c8d75 JA |
1443 | /* |
1444 | * Main function for kicking off and reaping jobs, as needed. | |
1445 | */ | |
ebac4655 JA |
1446 | static void run_threads(void) |
1447 | { | |
ebac4655 JA |
1448 | struct thread_data *td; |
1449 | unsigned long spent; | |
1450 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1451 | |
2f9ade3c JA |
1452 | if (fio_pin_memory()) |
1453 | return; | |
ebac4655 | 1454 | |
be4ecfdf JA |
1455 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1456 | return; | |
1457 | ||
c6ae0a5b | 1458 | if (!terse_output) { |
4ceb30d4 | 1459 | log_info("Starting "); |
9cedf167 | 1460 | if (nr_thread) |
4ceb30d4 | 1461 | log_info("%d thread%s", nr_thread, |
5ec10eaa | 1462 | nr_thread > 1 ? "s" : ""); |
9cedf167 JA |
1463 | if (nr_process) { |
1464 | if (nr_thread) | |
1465 | printf(" and "); | |
4ceb30d4 | 1466 | log_info("%d process%s", nr_process, |
5ec10eaa | 1467 | nr_process > 1 ? "es" : ""); |
9cedf167 | 1468 | } |
4ceb30d4 | 1469 | log_info("\n"); |
c6ae0a5b JA |
1470 | fflush(stdout); |
1471 | } | |
c04f7ec3 | 1472 | |
697a606c | 1473 | set_sig_handlers(); |
4efa970e | 1474 | |
ebac4655 JA |
1475 | todo = thread_number; |
1476 | nr_running = 0; | |
1477 | nr_started = 0; | |
1478 | m_rate = t_rate = 0; | |
1479 | ||
34572e28 | 1480 | for_each_td(td, i) { |
263e529f | 1481 | print_status_init(td->thread_number - 1); |
ebac4655 | 1482 | |
2dc1bbeb | 1483 | if (!td->o.create_serialize) { |
380cf265 | 1484 | init_disk_util(td); |
ebac4655 | 1485 | continue; |
380cf265 | 1486 | } |
ebac4655 JA |
1487 | |
1488 | /* | |
1489 | * do file setup here so it happens sequentially, | |
1490 | * we don't want X number of threads getting their | |
1491 | * client data interspersed on disk | |
1492 | */ | |
53cdc686 | 1493 | if (setup_files(td)) { |
5bf13a5a JA |
1494 | exit_value++; |
1495 | if (td->error) | |
5921e80c JA |
1496 | log_err("fio: pid=%d, err=%d/%s\n", |
1497 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1498 | td_set_runstate(td, TD_REAPED); |
1499 | todo--; | |
c69e8875 JA |
1500 | } else { |
1501 | struct fio_file *f; | |
2b13e716 | 1502 | unsigned int j; |
c69e8875 JA |
1503 | |
1504 | /* | |
1505 | * for sharing to work, each job must always open | |
1506 | * its own files. so close them, if we opened them | |
1507 | * for creation | |
1508 | */ | |
2b13e716 | 1509 | for_each_file(td, f, j) { |
22a57ba8 JA |
1510 | if (fio_file_open(f)) |
1511 | td_io_close_file(td, f); | |
22a57ba8 | 1512 | } |
5ec10eaa | 1513 | } |
380cf265 JA |
1514 | |
1515 | init_disk_util(td); | |
ebac4655 JA |
1516 | } |
1517 | ||
a2f77c9f JA |
1518 | set_genesis_time(); |
1519 | ||
ebac4655 | 1520 | while (todo) { |
75154845 JA |
1521 | struct thread_data *map[MAX_JOBS]; |
1522 | struct timeval this_start; | |
1523 | int this_jobs = 0, left; | |
1524 | ||
ebac4655 JA |
1525 | /* |
1526 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1527 | */ | |
34572e28 | 1528 | for_each_td(td, i) { |
ebac4655 JA |
1529 | if (td->runstate != TD_NOT_CREATED) |
1530 | continue; | |
1531 | ||
1532 | /* | |
1533 | * never got a chance to start, killed by other | |
1534 | * thread for some reason | |
1535 | */ | |
1536 | if (td->terminate) { | |
1537 | todo--; | |
1538 | continue; | |
1539 | } | |
1540 | ||
2dc1bbeb | 1541 | if (td->o.start_delay) { |
263e529f | 1542 | spent = mtime_since_genesis(); |
ebac4655 | 1543 | |
2dc1bbeb | 1544 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1545 | continue; |
1546 | } | |
1547 | ||
6f88bcb0 JA |
1548 | if (td->o.stonewall && (nr_started || nr_running)) { |
1549 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1550 | td->o.name); | |
ebac4655 | 1551 | break; |
6f88bcb0 | 1552 | } |
ebac4655 | 1553 | |
75154845 JA |
1554 | /* |
1555 | * Set state to created. Thread will transition | |
1556 | * to TD_INITIALIZED when it's done setting up. | |
1557 | */ | |
ebac4655 | 1558 | td_set_runstate(td, TD_CREATED); |
75154845 | 1559 | map[this_jobs++] = td; |
ebac4655 JA |
1560 | nr_started++; |
1561 | ||
2dc1bbeb | 1562 | if (td->o.use_thread) { |
f42c153d JA |
1563 | int ret; |
1564 | ||
ee56ad50 | 1565 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1566 | ret = pthread_create(&td->thread, NULL, |
1567 | thread_main, td); | |
1568 | if (ret) { | |
1569 | log_err("pthread_create: %s\n", | |
1570 | strerror(ret)); | |
ebac4655 | 1571 | nr_started--; |
c8bb6faf | 1572 | break; |
ebac4655 | 1573 | } |
f42c153d JA |
1574 | ret = pthread_detach(td->thread); |
1575 | if (ret) | |
1576 | log_err("pthread_detach: %s", | |
1577 | strerror(ret)); | |
ebac4655 | 1578 | } else { |
5e1d306e | 1579 | pid_t pid; |
ee56ad50 | 1580 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1581 | pid = fork(); |
1582 | if (!pid) { | |
a6418147 JA |
1583 | int ret = fork_main(shm_id, i); |
1584 | ||
5e1d306e JA |
1585 | _exit(ret); |
1586 | } else if (i == fio_debug_jobno) | |
1587 | *fio_debug_jobp = pid; | |
ebac4655 | 1588 | } |
29adda3c | 1589 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
656b1393 JA |
1590 | if (fio_mutex_down_timeout(startup_mutex, 10)) { |
1591 | log_err("fio: job startup hung? exiting.\n"); | |
1592 | terminate_threads(TERMINATE_ALL); | |
1593 | fio_abort = 1; | |
1594 | nr_started--; | |
1595 | break; | |
1596 | } | |
29adda3c | 1597 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1598 | } |
1599 | ||
1600 | /* | |
75154845 JA |
1601 | * Wait for the started threads to transition to |
1602 | * TD_INITIALIZED. | |
ebac4655 | 1603 | */ |
02bcaa8c | 1604 | fio_gettime(&this_start, NULL); |
75154845 | 1605 | left = this_jobs; |
6ce15a32 | 1606 | while (left && !fio_abort) { |
75154845 JA |
1607 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1608 | break; | |
1609 | ||
1610 | usleep(100000); | |
1611 | ||
1612 | for (i = 0; i < this_jobs; i++) { | |
1613 | td = map[i]; | |
1614 | if (!td) | |
1615 | continue; | |
b6f4d880 | 1616 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1617 | map[i] = NULL; |
1618 | left--; | |
b6f4d880 JA |
1619 | } else if (td->runstate >= TD_EXITED) { |
1620 | map[i] = NULL; | |
1621 | left--; | |
1622 | todo--; | |
1623 | nr_running++; /* work-around... */ | |
75154845 JA |
1624 | } |
1625 | } | |
1626 | } | |
1627 | ||
1628 | if (left) { | |
3b70d7e5 | 1629 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1630 | for (i = 0; i < this_jobs; i++) { |
1631 | td = map[i]; | |
1632 | if (!td) | |
1633 | continue; | |
1634 | kill(td->pid, SIGTERM); | |
1635 | } | |
1636 | break; | |
1637 | } | |
1638 | ||
1639 | /* | |
b6f4d880 | 1640 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1641 | */ |
34572e28 | 1642 | for_each_td(td, i) { |
75154845 | 1643 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1644 | continue; |
1645 | ||
b29ee5b3 JA |
1646 | if (in_ramp_time(td)) |
1647 | td_set_runstate(td, TD_RAMP); | |
1648 | else | |
1649 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1650 | nr_running++; |
1651 | nr_started--; | |
581e7141 JA |
1652 | m_rate += td->o.ratemin[0] + td->o.ratemin[1]; |
1653 | t_rate += td->o.rate[0] + td->o.rate[1]; | |
75154845 | 1654 | todo--; |
cdd18ad8 | 1655 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1656 | } |
1657 | ||
1658 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1659 | ||
1660 | if (todo) | |
1661 | usleep(100000); | |
1662 | } | |
1663 | ||
1664 | while (nr_running) { | |
1665 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1666 | usleep(10000); | |
1667 | } | |
1668 | ||
1669 | update_io_ticks(); | |
2f9ade3c | 1670 | fio_unpin_memory(); |
ebac4655 JA |
1671 | } |
1672 | ||
ebac4655 JA |
1673 | int main(int argc, char *argv[]) |
1674 | { | |
29d610e1 JA |
1675 | long ps; |
1676 | ||
2e5cdb11 | 1677 | sinit(); |
d54a144d | 1678 | init_rand(&__fio_rand_state); |
2e5cdb11 | 1679 | |
dbe1125e JA |
1680 | /* |
1681 | * We need locale for number printing, if it isn't set then just | |
1682 | * go with the US format. | |
1683 | */ | |
1684 | if (!getenv("LC_NUMERIC")) | |
1685 | setlocale(LC_NUMERIC, "en_US"); | |
1686 | ||
29d610e1 JA |
1687 | ps = sysconf(_SC_PAGESIZE); |
1688 | if (ps < 0) { | |
1689 | log_err("Failed to get page size\n"); | |
1690 | return 1; | |
1691 | } | |
1692 | ||
cfc99db7 | 1693 | page_size = ps; |
29d610e1 JA |
1694 | page_mask = ps - 1; |
1695 | ||
74929ac2 JA |
1696 | fio_keywords_init(); |
1697 | ||
1698 | if (parse_options(argc, argv)) | |
1699 | return 1; | |
1700 | ||
07b3232d JA |
1701 | if (exec_profile && load_profile(exec_profile)) |
1702 | return 1; | |
1703 | ||
74929ac2 JA |
1704 | if (!thread_number) |
1705 | return 0; | |
1706 | ||
bb3884d8 JA |
1707 | if (write_bw_log) { |
1708 | setup_log(&agg_io_log[DDIR_READ]); | |
1709 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1710 | } | |
1711 | ||
cdd18ad8 | 1712 | startup_mutex = fio_mutex_init(0); |
03e20d68 BC |
1713 | if (startup_mutex == NULL) |
1714 | return 1; | |
d2bbb8d9 | 1715 | writeout_mutex = fio_mutex_init(1); |
03e20d68 BC |
1716 | if (writeout_mutex == NULL) |
1717 | return 1; | |
07739b57 | 1718 | |
a2f77c9f | 1719 | set_genesis_time(); |
7985701b | 1720 | create_disk_util_thread(); |
ebac4655 | 1721 | |
dae5341c JA |
1722 | cgroup_list = smalloc(sizeof(*cgroup_list)); |
1723 | INIT_FLIST_HEAD(cgroup_list); | |
1724 | ||
ebac4655 | 1725 | run_threads(); |
6ce15a32 | 1726 | |
bb3884d8 | 1727 | if (!fio_abort) { |
6ce15a32 | 1728 | show_run_stats(); |
bb3884d8 | 1729 | if (write_bw_log) { |
5ec10eaa JA |
1730 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1731 | __finish_log(agg_io_log[DDIR_WRITE], | |
1732 | "agg-write_bw.log"); | |
bb3884d8 JA |
1733 | } |
1734 | } | |
ebac4655 | 1735 | |
dae5341c JA |
1736 | cgroup_kill(cgroup_list); |
1737 | sfree(cgroup_list); | |
61eb313e | 1738 | sfree(cgroup_mnt); |
39f22027 | 1739 | |
cdd18ad8 | 1740 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1741 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1742 | return exit_value; |
ebac4655 | 1743 | } |