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" |
ebac4655 | 48 | |
cfc99db7 JA |
49 | unsigned long page_mask; |
50 | unsigned long page_size; | |
d529ee19 JA |
51 | |
52 | #define PAGE_ALIGN(buf) \ | |
29d610e1 | 53 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
ebac4655 JA |
54 | |
55 | int groupid = 0; | |
56 | int thread_number = 0; | |
9cedf167 JA |
57 | int nr_process = 0; |
58 | int nr_thread = 0; | |
ebac4655 | 59 | int shm_id = 0; |
53cdc686 | 60 | int temp_stall_ts; |
d3eeeabc | 61 | unsigned long done_secs = 0; |
ebac4655 | 62 | |
cdd18ad8 | 63 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 64 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 65 | static volatile int fio_abort; |
437c9b71 | 66 | static int exit_value; |
be4ecfdf | 67 | static pthread_t gtod_thread; |
7985701b | 68 | static pthread_t disk_util_thread; |
dae5341c | 69 | static struct flist_head *cgroup_list; |
6adb38a1 | 70 | static char *cgroup_mnt; |
ebac4655 | 71 | |
bb3884d8 JA |
72 | struct io_log *agg_io_log[2]; |
73 | ||
ebac4655 | 74 | #define TERMINATE_ALL (-1) |
75154845 | 75 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 76 | |
b29ee5b3 | 77 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 78 | { |
d8fab1b6 JA |
79 | if (td->runstate == runstate) |
80 | return; | |
81 | ||
5921e80c JA |
82 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
83 | td->runstate, runstate); | |
6ce15a32 JA |
84 | td->runstate = runstate; |
85 | } | |
86 | ||
390c40e2 | 87 | static void terminate_threads(int group_id) |
ebac4655 | 88 | { |
34572e28 | 89 | struct thread_data *td; |
ebac4655 JA |
90 | int i; |
91 | ||
6f88bcb0 JA |
92 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
93 | ||
34572e28 | 94 | for_each_td(td, i) { |
ebac4655 | 95 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 96 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 97 | td->o.name, (int) td->pid); |
ad830ed7 JA |
98 | td->terminate = 1; |
99 | td->o.start_delay = 0; | |
100 | ||
7a93ab19 JA |
101 | /* |
102 | * if the thread is running, just let it exit | |
103 | */ | |
104 | if (td->runstate < TD_RUNNING) | |
03e20d68 | 105 | kill(td->pid, SIGTERM); |
f63f7f3b JA |
106 | else { |
107 | struct ioengine_ops *ops = td->io_ops; | |
108 | ||
03e20d68 BC |
109 | if (ops && (ops->flags & FIO_SIGTERM)) |
110 | kill(td->pid, SIGTERM); | |
f63f7f3b | 111 | } |
ebac4655 JA |
112 | } |
113 | } | |
114 | } | |
115 | ||
5f8f9726 JA |
116 | /* |
117 | * Happens on thread runs with ctrl-c, ignore our own SIGQUIT | |
118 | */ | |
119 | static void sig_quit(int sig) | |
120 | { | |
121 | } | |
122 | ||
697a606c JA |
123 | static void sig_int(int sig) |
124 | { | |
125 | if (threads) { | |
4ceb30d4 | 126 | log_info("\nfio: terminating on signal %d\n", sig); |
5ec10eaa JA |
127 | fflush(stdout); |
128 | terminate_threads(TERMINATE_ALL); | |
ebac4655 JA |
129 | } |
130 | } | |
131 | ||
7985701b | 132 | static void *disk_thread_main(void *data) |
a5b01f1b | 133 | { |
7985701b JA |
134 | fio_mutex_up(startup_mutex); |
135 | ||
136 | while (threads) { | |
137 | usleep(DISK_UTIL_MSEC * 1000); | |
9a793c2f JA |
138 | if (!threads) |
139 | break; | |
7985701b JA |
140 | update_io_ticks(); |
141 | print_thread_status(); | |
142 | } | |
143 | ||
144 | return NULL; | |
a5b01f1b JA |
145 | } |
146 | ||
7985701b | 147 | static int create_disk_util_thread(void) |
a5b01f1b | 148 | { |
7985701b JA |
149 | pthread_attr_t attr; |
150 | int ret; | |
a5b01f1b | 151 | |
7985701b JA |
152 | pthread_attr_init(&attr); |
153 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
154 | ret = pthread_create(&disk_util_thread, &attr, disk_thread_main, NULL); | |
155 | pthread_attr_destroy(&attr); | |
156 | if (ret) { | |
157 | log_err("Can't create disk util thread: %s\n", strerror(ret)); | |
158 | return 1; | |
159 | } | |
a5b01f1b | 160 | |
7985701b JA |
161 | ret = pthread_detach(disk_util_thread); |
162 | if (ret) { | |
163 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); | |
164 | return 1; | |
165 | } | |
03e20d68 | 166 | |
7985701b JA |
167 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
168 | fio_mutex_down(startup_mutex); | |
169 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
170 | return 0; | |
a5b01f1b JA |
171 | } |
172 | ||
697a606c JA |
173 | static void set_sig_handlers(void) |
174 | { | |
175 | struct sigaction act; | |
176 | ||
697a606c JA |
177 | memset(&act, 0, sizeof(act)); |
178 | act.sa_handler = sig_int; | |
179 | act.sa_flags = SA_RESTART; | |
180 | sigaction(SIGINT, &act, NULL); | |
de79c915 | 181 | |
5f8f9726 JA |
182 | memset(&act, 0, sizeof(act)); |
183 | act.sa_handler = sig_quit; | |
184 | act.sa_flags = SA_RESTART; | |
03e20d68 | 185 | sigaction(SIGTERM, &act, NULL); |
697a606c JA |
186 | } |
187 | ||
906c8d75 JA |
188 | /* |
189 | * Check if we are above the minimum rate given. | |
190 | */ | |
581e7141 JA |
191 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
192 | enum td_ddir ddir) | |
ebac4655 | 193 | { |
0904200b | 194 | unsigned long long bytes = 0; |
4e991c23 | 195 | unsigned long iops = 0; |
ebac4655 JA |
196 | unsigned long spent; |
197 | unsigned long rate; | |
581e7141 JA |
198 | unsigned int ratemin = 0; |
199 | unsigned int rate_iops = 0; | |
200 | unsigned int rate_iops_min = 0; | |
ebac4655 | 201 | |
ff58fced JA |
202 | assert(ddir_rw(ddir)); |
203 | ||
d982d873 JA |
204 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
205 | return 0; | |
206 | ||
ebac4655 JA |
207 | /* |
208 | * allow a 2 second settle period in the beginning | |
209 | */ | |
210 | if (mtime_since(&td->start, now) < 2000) | |
211 | return 0; | |
212 | ||
581e7141 JA |
213 | iops += td->io_blocks[ddir]; |
214 | bytes += td->this_io_bytes[ddir]; | |
215 | ratemin += td->o.ratemin[ddir]; | |
216 | rate_iops += td->o.rate_iops[ddir]; | |
217 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
0904200b | 218 | |
ebac4655 JA |
219 | /* |
220 | * if rate blocks is set, sample is running | |
221 | */ | |
581e7141 JA |
222 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
223 | spent = mtime_since(&td->lastrate[ddir], now); | |
2dc1bbeb | 224 | if (spent < td->o.ratecycle) |
ebac4655 JA |
225 | return 0; |
226 | ||
581e7141 | 227 | if (td->o.rate[ddir]) { |
4e991c23 JA |
228 | /* |
229 | * check bandwidth specified rate | |
230 | */ | |
581e7141 | 231 | if (bytes < td->rate_bytes[ddir]) { |
5ec10eaa | 232 | log_err("%s: min rate %u not met\n", td->o.name, |
581e7141 | 233 | ratemin); |
4e991c23 JA |
234 | return 1; |
235 | } else { | |
581e7141 JA |
236 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
237 | if (rate < ratemin || | |
238 | bytes < td->rate_bytes[ddir]) { | |
5ec10eaa | 239 | log_err("%s: min rate %u not met, got" |
b22989b9 | 240 | " %luKB/sec\n", td->o.name, |
581e7141 | 241 | ratemin, rate); |
4e991c23 JA |
242 | return 1; |
243 | } | |
244 | } | |
413dd459 | 245 | } else { |
4e991c23 JA |
246 | /* |
247 | * checks iops specified rate | |
248 | */ | |
581e7141 | 249 | if (iops < rate_iops) { |
5ec10eaa | 250 | log_err("%s: min iops rate %u not met\n", |
581e7141 | 251 | td->o.name, rate_iops); |
413dd459 | 252 | return 1; |
4e991c23 | 253 | } else { |
581e7141 JA |
254 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
255 | if (rate < rate_iops_min || | |
256 | iops < td->rate_blocks[ddir]) { | |
5ec10eaa JA |
257 | log_err("%s: min iops rate %u not met," |
258 | " got %lu\n", td->o.name, | |
581e7141 | 259 | rate_iops_min, rate); |
4e991c23 | 260 | } |
413dd459 | 261 | } |
ebac4655 JA |
262 | } |
263 | } | |
264 | ||
581e7141 JA |
265 | td->rate_bytes[ddir] = bytes; |
266 | td->rate_blocks[ddir] = iops; | |
267 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
ebac4655 JA |
268 | return 0; |
269 | } | |
270 | ||
581e7141 JA |
271 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
272 | unsigned long *bytes_done) | |
273 | { | |
274 | int ret = 0; | |
275 | ||
276 | if (bytes_done[0]) | |
277 | ret |= __check_min_rate(td, now, 0); | |
278 | if (bytes_done[1]) | |
279 | ret |= __check_min_rate(td, now, 1); | |
280 | ||
281 | return ret; | |
282 | } | |
283 | ||
ebac4655 JA |
284 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
285 | { | |
2dc1bbeb | 286 | if (!td->o.timeout) |
ebac4655 | 287 | return 0; |
2dc1bbeb | 288 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
289 | return 1; |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
906c8d75 JA |
294 | /* |
295 | * When job exits, we can cancel the in-flight IO if we are using async | |
296 | * io. Attempt to do so. | |
297 | */ | |
ebac4655 JA |
298 | static void cleanup_pending_aio(struct thread_data *td) |
299 | { | |
01743ee1 | 300 | struct flist_head *entry, *n; |
ebac4655 JA |
301 | struct io_u *io_u; |
302 | int r; | |
303 | ||
304 | /* | |
305 | * get immediately available events, if any | |
306 | */ | |
581e7141 | 307 | r = io_u_queued_complete(td, 0, NULL); |
b2fdda43 JA |
308 | if (r < 0) |
309 | return; | |
ebac4655 JA |
310 | |
311 | /* | |
312 | * now cancel remaining active events | |
313 | */ | |
2866c82d | 314 | if (td->io_ops->cancel) { |
01743ee1 JA |
315 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
316 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 317 | |
0c6e7517 JA |
318 | /* |
319 | * if the io_u isn't in flight, then that generally | |
320 | * means someone leaked an io_u. complain but fix | |
321 | * it up, so we don't stall here. | |
322 | */ | |
323 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
324 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 325 | put_io_u(td, io_u); |
0c6e7517 JA |
326 | } else { |
327 | r = td->io_ops->cancel(td, io_u); | |
328 | if (!r) | |
329 | put_io_u(td, io_u); | |
330 | } | |
ebac4655 JA |
331 | } |
332 | } | |
333 | ||
97601024 | 334 | if (td->cur_depth) |
581e7141 | 335 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
ebac4655 JA |
336 | } |
337 | ||
858a3d47 JA |
338 | /* |
339 | * Helper to handle the final sync of a file. Works just like the normal | |
340 | * io path, just does everything sync. | |
341 | */ | |
342 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
343 | { | |
344 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
345 | int ret; |
346 | ||
347 | if (!io_u) | |
348 | return 1; | |
349 | ||
350 | io_u->ddir = DDIR_SYNC; | |
351 | io_u->file = f; | |
352 | ||
353 | if (td_io_prep(td, io_u)) { | |
354 | put_io_u(td, io_u); | |
355 | return 1; | |
356 | } | |
357 | ||
755200a3 | 358 | requeue: |
858a3d47 | 359 | ret = td_io_queue(td, io_u); |
36167d82 | 360 | if (ret < 0) { |
e1161c32 | 361 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 362 | put_io_u(td, io_u); |
858a3d47 | 363 | return 1; |
36167d82 | 364 | } else if (ret == FIO_Q_QUEUED) { |
581e7141 | 365 | if (io_u_queued_complete(td, 1, NULL) < 0) |
36167d82 | 366 | return 1; |
36167d82 JA |
367 | } else if (ret == FIO_Q_COMPLETED) { |
368 | if (io_u->error) { | |
e1161c32 | 369 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
370 | return 1; |
371 | } | |
858a3d47 | 372 | |
581e7141 | 373 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
b2fdda43 | 374 | return 1; |
755200a3 JA |
375 | } else if (ret == FIO_Q_BUSY) { |
376 | if (td_io_commit(td)) | |
377 | return 1; | |
378 | goto requeue; | |
858a3d47 JA |
379 | } |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
993bf48b JA |
384 | static inline void update_tv_cache(struct thread_data *td) |
385 | { | |
386 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
387 | fio_gettime(&td->tv_cache, NULL); | |
388 | } | |
389 | ||
f2bba182 RR |
390 | static int break_on_this_error(struct thread_data *td, int *retptr) |
391 | { | |
392 | int ret = *retptr; | |
393 | ||
394 | if (ret < 0 || td->error) { | |
395 | int err; | |
396 | ||
1ec99eea JA |
397 | if (!td->o.continue_on_error) |
398 | return 1; | |
f2bba182 RR |
399 | |
400 | if (ret < 0) | |
401 | err = -ret; | |
402 | else | |
403 | err = td->error; | |
404 | ||
f2bba182 RR |
405 | if (td_non_fatal_error(err)) { |
406 | /* | |
407 | * Continue with the I/Os in case of | |
408 | * a non fatal error. | |
409 | */ | |
8a4f8a24 | 410 | update_error_count(td, err); |
f2bba182 RR |
411 | td_clear_error(td); |
412 | *retptr = 0; | |
413 | return 0; | |
8a4f8a24 RR |
414 | } else if (td->o.fill_device && err == ENOSPC) { |
415 | /* | |
416 | * We expect to hit this error if | |
417 | * fill_device option is set. | |
418 | */ | |
419 | td_clear_error(td); | |
420 | td->terminate = 1; | |
421 | return 1; | |
f2bba182 RR |
422 | } else { |
423 | /* | |
424 | * Stop the I/O in case of a fatal | |
425 | * error. | |
426 | */ | |
8a4f8a24 | 427 | update_error_count(td, err); |
f2bba182 RR |
428 | return 1; |
429 | } | |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
906c8d75 | 435 | /* |
34403fb1 | 436 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
437 | * reads the blocks back in, and checks the crc/md5 of the data. |
438 | */ | |
1e97cce9 | 439 | static void do_verify(struct thread_data *td) |
ebac4655 | 440 | { |
53cdc686 | 441 | struct fio_file *f; |
36167d82 | 442 | struct io_u *io_u; |
af52b345 JA |
443 | int ret, min_events; |
444 | unsigned int i; | |
e5b401d4 | 445 | |
008618a8 JA |
446 | dprint(FD_VERIFY, "starting loop\n"); |
447 | ||
e5b401d4 JA |
448 | /* |
449 | * sync io first and invalidate cache, to make sure we really | |
450 | * read from disk. | |
451 | */ | |
452 | for_each_file(td, f, i) { | |
d6aed795 | 453 | if (!fio_file_open(f)) |
3d7b485f | 454 | continue; |
b2fdda43 JA |
455 | if (fio_io_sync(td, f)) |
456 | break; | |
457 | if (file_invalidate_cache(td, f)) | |
458 | break; | |
e5b401d4 | 459 | } |
ebac4655 | 460 | |
b2fdda43 JA |
461 | if (td->error) |
462 | return; | |
463 | ||
ebac4655 JA |
464 | td_set_runstate(td, TD_VERIFYING); |
465 | ||
36167d82 JA |
466 | io_u = NULL; |
467 | while (!td->terminate) { | |
4950421a | 468 | int ret2, full; |
5451792e | 469 | |
993bf48b JA |
470 | update_tv_cache(td); |
471 | ||
472 | if (runtime_exceeded(td, &td->tv_cache)) { | |
90a87d4b | 473 | td->terminate = 1; |
02bcaa8c | 474 | break; |
069c2918 | 475 | } |
02bcaa8c | 476 | |
dcb4830d RR |
477 | io_u = __get_io_u(td); |
478 | if (!io_u) | |
479 | break; | |
480 | ||
069c2918 JA |
481 | if (get_next_verify(td, io_u)) { |
482 | put_io_u(td, io_u); | |
ebac4655 | 483 | break; |
069c2918 | 484 | } |
ebac4655 | 485 | |
069c2918 JA |
486 | if (td_io_prep(td, io_u)) { |
487 | put_io_u(td, io_u); | |
53cdc686 | 488 | break; |
069c2918 | 489 | } |
d7762cf8 | 490 | |
e8462bd8 JA |
491 | if (td->o.verify_async) |
492 | io_u->end_io = verify_io_u_async; | |
493 | else | |
494 | io_u->end_io = verify_io_u; | |
53cdc686 | 495 | |
11786802 | 496 | ret = td_io_queue(td, io_u); |
36167d82 JA |
497 | switch (ret) { |
498 | case FIO_Q_COMPLETED: | |
f2bba182 | 499 | if (io_u->error) { |
22819ec2 | 500 | ret = -io_u->error; |
f2bba182 RR |
501 | clear_io_u(td, io_u); |
502 | } else if (io_u->resid) { | |
36167d82 | 503 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 504 | struct fio_file *f = io_u->file; |
ebac4655 | 505 | |
9e9d164e JA |
506 | /* |
507 | * zero read, fail | |
508 | */ | |
509 | if (!bytes) { | |
41d9f0fd | 510 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
511 | put_io_u(td, io_u); |
512 | break; | |
513 | } | |
8400d9b2 | 514 | |
36167d82 JA |
515 | io_u->xfer_buflen = io_u->resid; |
516 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
517 | io_u->offset += bytes; |
518 | ||
ff58fced JA |
519 | if (ddir_rw(io_u->ddir)) |
520 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 521 | |
d460eb31 | 522 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
523 | goto sync_done; |
524 | ||
11786802 JA |
525 | requeue_io_u(td, &io_u); |
526 | } else { | |
8400d9b2 | 527 | sync_done: |
581e7141 | 528 | ret = io_u_sync_complete(td, io_u, NULL); |
11786802 JA |
529 | if (ret < 0) |
530 | break; | |
36167d82 | 531 | } |
36167d82 JA |
532 | continue; |
533 | case FIO_Q_QUEUED: | |
534 | break; | |
755200a3 JA |
535 | case FIO_Q_BUSY: |
536 | requeue_io_u(td, &io_u); | |
5451792e JA |
537 | ret2 = td_io_commit(td); |
538 | if (ret2 < 0) | |
539 | ret = ret2; | |
755200a3 | 540 | break; |
36167d82 JA |
541 | default: |
542 | assert(ret < 0); | |
e1161c32 | 543 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
544 | break; |
545 | } | |
546 | ||
f2bba182 | 547 | if (break_on_this_error(td, &ret)) |
3af6ef39 JA |
548 | break; |
549 | ||
ebac4655 | 550 | /* |
3af6ef39 JA |
551 | * if we can queue more, do so. but check if there are |
552 | * completed io_u's first. | |
ebac4655 | 553 | */ |
4950421a JA |
554 | full = queue_full(td) || ret == FIO_Q_BUSY; |
555 | if (full || !td->o.iodepth_batch_complete) { | |
6a96276c RR |
556 | min_events = min(td->o.iodepth_batch_complete, |
557 | td->cur_depth); | |
4950421a | 558 | if (full && !min_events) |
838bc709 | 559 | min_events = 1; |
e916b390 | 560 | |
4950421a JA |
561 | do { |
562 | /* | |
563 | * Reap required number of io units, if any, | |
564 | * and do the verification on them through | |
565 | * the callback handler | |
566 | */ | |
581e7141 | 567 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
4950421a JA |
568 | ret = -1; |
569 | break; | |
570 | } | |
571 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
572 | } | |
573 | if (ret < 0) | |
ebac4655 | 574 | break; |
36167d82 | 575 | } |
ebac4655 | 576 | |
c01c0395 JA |
577 | if (!td->error) { |
578 | min_events = td->cur_depth; | |
579 | ||
580 | if (min_events) | |
581e7141 | 581 | ret = io_u_queued_complete(td, min_events, NULL); |
c01c0395 | 582 | } else |
ebac4655 JA |
583 | cleanup_pending_aio(td); |
584 | ||
585 | td_set_runstate(td, TD_RUNNING); | |
008618a8 JA |
586 | |
587 | dprint(FD_VERIFY, "exiting loop\n"); | |
ebac4655 JA |
588 | } |
589 | ||
32cd46a0 | 590 | /* |
906c8d75 | 591 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
592 | * and reaps them, checking for rate and errors along the way. |
593 | */ | |
ebac4655 JA |
594 | static void do_io(struct thread_data *td) |
595 | { | |
af52b345 JA |
596 | unsigned int i; |
597 | int ret = 0; | |
ebac4655 | 598 | |
b29ee5b3 JA |
599 | if (in_ramp_time(td)) |
600 | td_set_runstate(td, TD_RAMP); | |
601 | else | |
602 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 603 | |
457bf399 | 604 | while ( (td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
a917a8b3 | 605 | (!flist_empty(&td->trim_list)) || |
457bf399 | 606 | ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) ) { |
97601024 | 607 | struct timeval comp_time; |
581e7141 | 608 | unsigned long bytes_done[2] = { 0, 0 }; |
84585003 | 609 | int min_evts = 0; |
ebac4655 | 610 | struct io_u *io_u; |
4950421a | 611 | int ret2, full; |
ebac4655 JA |
612 | |
613 | if (td->terminate) | |
614 | break; | |
615 | ||
993bf48b | 616 | update_tv_cache(td); |
97601024 | 617 | |
993bf48b | 618 | if (runtime_exceeded(td, &td->tv_cache)) { |
90a87d4b | 619 | td->terminate = 1; |
97601024 JA |
620 | break; |
621 | } | |
36167d82 | 622 | |
dcb4830d RR |
623 | io_u = get_io_u(td); |
624 | if (!io_u) | |
625 | break; | |
626 | ||
b67740d3 JA |
627 | /* |
628 | * Add verification end_io handler, if asked to verify | |
629 | * a previously written file. | |
630 | */ | |
715d2b3e JA |
631 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && |
632 | !td_rw(td)) { | |
e8462bd8 JA |
633 | if (td->o.verify_async) |
634 | io_u->end_io = verify_io_u_async; | |
635 | else | |
636 | io_u->end_io = verify_io_u; | |
d8fab1b6 | 637 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
638 | } else if (in_ramp_time(td)) |
639 | td_set_runstate(td, TD_RAMP); | |
640 | else | |
d8fab1b6 | 641 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 642 | |
11786802 | 643 | ret = td_io_queue(td, io_u); |
36167d82 JA |
644 | switch (ret) { |
645 | case FIO_Q_COMPLETED: | |
f2bba182 | 646 | if (io_u->error) { |
5451792e | 647 | ret = -io_u->error; |
f2bba182 RR |
648 | clear_io_u(td, io_u); |
649 | } else if (io_u->resid) { | |
36167d82 | 650 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 651 | struct fio_file *f = io_u->file; |
36167d82 | 652 | |
9e9d164e JA |
653 | /* |
654 | * zero read, fail | |
655 | */ | |
656 | if (!bytes) { | |
41d9f0fd | 657 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
658 | put_io_u(td, io_u); |
659 | break; | |
660 | } | |
661 | ||
cec6b55d | 662 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 663 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
664 | io_u->offset += bytes; |
665 | ||
ff58fced JA |
666 | if (ddir_rw(io_u->ddir)) |
667 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 668 | |
d460eb31 | 669 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
670 | goto sync_done; |
671 | ||
11786802 JA |
672 | requeue_io_u(td, &io_u); |
673 | } else { | |
5a7c5680 | 674 | sync_done: |
581e7141 JA |
675 | if (__should_check_rate(td, 0) || |
676 | __should_check_rate(td, 1)) | |
993bf48b JA |
677 | fio_gettime(&comp_time, NULL); |
678 | ||
581e7141 JA |
679 | ret = io_u_sync_complete(td, io_u, bytes_done); |
680 | if (ret < 0) | |
681 | break; | |
cec6b55d | 682 | } |
36167d82 JA |
683 | break; |
684 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
685 | /* |
686 | * if the engine doesn't have a commit hook, | |
687 | * the io_u is really queued. if it does have such | |
688 | * a hook, it has to call io_u_queued() itself. | |
689 | */ | |
690 | if (td->io_ops->commit == NULL) | |
691 | io_u_queued(td, io_u); | |
36167d82 | 692 | break; |
755200a3 JA |
693 | case FIO_Q_BUSY: |
694 | requeue_io_u(td, &io_u); | |
5451792e JA |
695 | ret2 = td_io_commit(td); |
696 | if (ret2 < 0) | |
697 | ret = ret2; | |
755200a3 | 698 | break; |
36167d82 JA |
699 | default: |
700 | assert(ret < 0); | |
701 | put_io_u(td, io_u); | |
702 | break; | |
ebac4655 JA |
703 | } |
704 | ||
f2bba182 | 705 | if (break_on_this_error(td, &ret)) |
36167d82 JA |
706 | break; |
707 | ||
97601024 JA |
708 | /* |
709 | * See if we need to complete some commands | |
710 | */ | |
4950421a JA |
711 | full = queue_full(td) || ret == FIO_Q_BUSY; |
712 | if (full || !td->o.iodepth_batch_complete) { | |
6a96276c RR |
713 | min_evts = min(td->o.iodepth_batch_complete, |
714 | td->cur_depth); | |
4950421a | 715 | if (full && !min_evts) |
36167d82 | 716 | min_evts = 1; |
4950421a | 717 | |
581e7141 JA |
718 | if (__should_check_rate(td, 0) || |
719 | __should_check_rate(td, 1)) | |
993bf48b | 720 | fio_gettime(&comp_time, NULL); |
4950421a JA |
721 | |
722 | do { | |
581e7141 JA |
723 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
724 | if (ret < 0) | |
4950421a JA |
725 | break; |
726 | ||
4950421a | 727 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
ebac4655 JA |
728 | } |
729 | ||
4950421a JA |
730 | if (ret < 0) |
731 | break; | |
581e7141 | 732 | if (!(bytes_done[0] + bytes_done[1])) |
97601024 JA |
733 | continue; |
734 | ||
581e7141 JA |
735 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
736 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
721938ae JA |
737 | if (exitall_on_terminate) |
738 | terminate_threads(td->groupid); | |
739 | td_verror(td, EIO, "check_min_rate"); | |
740 | break; | |
741 | } | |
ebac4655 JA |
742 | } |
743 | ||
2dc1bbeb | 744 | if (td->o.thinktime) { |
9c1f7434 JA |
745 | unsigned long long b; |
746 | ||
747 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 748 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
749 | int left; |
750 | ||
2dc1bbeb | 751 | if (td->o.thinktime_spin) |
6dd6f2cd | 752 | usec_spin(td->o.thinktime_spin); |
48097d5c | 753 | |
2dc1bbeb | 754 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
755 | if (left) |
756 | usec_sleep(td, left); | |
757 | } | |
9c1f7434 | 758 | } |
ebac4655 JA |
759 | } |
760 | ||
d708ac5e JA |
761 | if (td->trim_entries) |
762 | printf("trim entries %ld\n", td->trim_entries); | |
a917a8b3 | 763 | |
aa31f1f1 SL |
764 | if (td->o.fill_device && td->error == ENOSPC) { |
765 | td->error = 0; | |
766 | td->terminate = 1; | |
767 | } | |
4d2413c6 | 768 | if (!td->error) { |
3d7c391d JA |
769 | struct fio_file *f; |
770 | ||
c01c0395 JA |
771 | i = td->cur_depth; |
772 | if (i) | |
581e7141 | 773 | ret = io_u_queued_complete(td, i, NULL); |
ebac4655 | 774 | |
2dc1bbeb | 775 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 776 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
777 | |
778 | for_each_file(td, f, i) { | |
d6aed795 | 779 | if (!fio_file_open(f)) |
3d7b485f | 780 | continue; |
858a3d47 | 781 | fio_io_sync(td, f); |
3d7b485f | 782 | } |
84585003 | 783 | } |
c01c0395 JA |
784 | } else |
785 | cleanup_pending_aio(td); | |
2ba1c290 JA |
786 | |
787 | /* | |
788 | * stop job if we failed doing any IO | |
789 | */ | |
790 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
791 | td->done = 1; | |
ebac4655 JA |
792 | } |
793 | ||
ebac4655 JA |
794 | static void cleanup_io_u(struct thread_data *td) |
795 | { | |
01743ee1 | 796 | struct flist_head *entry, *n; |
ebac4655 JA |
797 | struct io_u *io_u; |
798 | ||
01743ee1 JA |
799 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
800 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 801 | |
01743ee1 | 802 | flist_del(&io_u->list); |
ebac4655 JA |
803 | free(io_u); |
804 | } | |
805 | ||
2f9ade3c | 806 | free_io_mem(td); |
ebac4655 JA |
807 | } |
808 | ||
809 | static int init_io_u(struct thread_data *td) | |
810 | { | |
811 | struct io_u *io_u; | |
a00735e6 | 812 | unsigned int max_bs; |
eb7ccf38 | 813 | int cl_align, i, max_units; |
ebac4655 JA |
814 | char *p; |
815 | ||
1e3c09af | 816 | max_units = td->o.iodepth; |
2dc1bbeb | 817 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
818 | td->orig_buffer_size = (unsigned long long) max_bs |
819 | * (unsigned long long) max_units; | |
820 | ||
821 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
822 | unsigned long bs; | |
74b025b0 | 823 | |
5ec10eaa JA |
824 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
825 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
826 | } | |
ebac4655 | 827 | |
c3990645 JA |
828 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
829 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
830 | return 1; | |
831 | } | |
832 | ||
2f9ade3c JA |
833 | if (allocate_io_mem(td)) |
834 | return 1; | |
ebac4655 | 835 | |
1c04bf78 JA |
836 | if (td->o.odirect || td->o.mem_align || |
837 | (td->io_ops->flags & FIO_RAWIO)) | |
d529ee19 | 838 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
b3f378e9 JA |
839 | else |
840 | p = td->orig_buffer; | |
841 | ||
eb7ccf38 JA |
842 | cl_align = os_cache_line_size(); |
843 | ||
ebac4655 | 844 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
845 | void *ptr; |
846 | ||
db1cd90b JA |
847 | if (td->terminate) |
848 | return 1; | |
eb7ccf38 JA |
849 | |
850 | if (posix_memalign(&ptr, cl_align, sizeof(*io_u))) { | |
851 | log_err("fio: posix_memalign=%s\n", strerror(errno)); | |
852 | break; | |
853 | } | |
854 | ||
855 | io_u = ptr; | |
ebac4655 | 856 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 857 | INIT_FLIST_HEAD(&io_u->list); |
d529ee19 | 858 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
ebac4655 | 859 | |
b4c5e1ac JA |
860 | if (!(td->io_ops->flags & FIO_NOIO)) { |
861 | io_u->buf = p + max_bs * i; | |
d529ee19 | 862 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); |
e9459e5a | 863 | |
5973cafb JA |
864 | if (td_write(td) && !td->o.refill_buffers) |
865 | io_u_fill_buffer(td, io_u, max_bs); | |
cbe8d756 RR |
866 | else if (td_write(td) && td->o.verify_pattern_bytes) { |
867 | /* | |
868 | * Fill the buffer with the pattern if we are | |
869 | * going to be doing writes. | |
870 | */ | |
7d9fb455 | 871 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
cbe8d756 | 872 | } |
b4c5e1ac | 873 | } |
6b9cea23 | 874 | |
b1ff3403 | 875 | io_u->index = i; |
0c6e7517 | 876 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 877 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
878 | } |
879 | ||
880 | return 0; | |
881 | } | |
882 | ||
da86774e JA |
883 | static int switch_ioscheduler(struct thread_data *td) |
884 | { | |
885 | char tmp[256], tmp2[128]; | |
886 | FILE *f; | |
887 | int ret; | |
888 | ||
ba0fbe10 | 889 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
890 | return 0; |
891 | ||
da86774e JA |
892 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
893 | ||
894 | f = fopen(tmp, "r+"); | |
895 | if (!f) { | |
cbf5c1d7 | 896 | if (errno == ENOENT) { |
5ec10eaa JA |
897 | log_err("fio: os or kernel doesn't support IO scheduler" |
898 | " switching\n"); | |
cbf5c1d7 JA |
899 | return 0; |
900 | } | |
901 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
902 | return 1; |
903 | } | |
904 | ||
905 | /* | |
906 | * Set io scheduler. | |
907 | */ | |
2dc1bbeb | 908 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 909 | if (ferror(f) || ret != 1) { |
e1161c32 | 910 | td_verror(td, errno, "fwrite"); |
da86774e JA |
911 | fclose(f); |
912 | return 1; | |
913 | } | |
914 | ||
915 | rewind(f); | |
916 | ||
917 | /* | |
918 | * Read back and check that the selected scheduler is now the default. | |
919 | */ | |
920 | ret = fread(tmp, 1, sizeof(tmp), f); | |
921 | if (ferror(f) || ret < 0) { | |
e1161c32 | 922 | td_verror(td, errno, "fread"); |
da86774e JA |
923 | fclose(f); |
924 | return 1; | |
925 | } | |
926 | ||
2dc1bbeb | 927 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 928 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 929 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 930 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
931 | fclose(f); |
932 | return 1; | |
933 | } | |
934 | ||
935 | fclose(f); | |
936 | return 0; | |
937 | } | |
938 | ||
492158cf JA |
939 | static int keep_running(struct thread_data *td) |
940 | { | |
941 | unsigned long long io_done; | |
942 | ||
20e354ef JA |
943 | if (td->done) |
944 | return 0; | |
492158cf JA |
945 | if (td->o.time_based) |
946 | return 1; | |
947 | if (td->o.loops) { | |
948 | td->o.loops--; | |
949 | return 1; | |
950 | } | |
951 | ||
5ec10eaa JA |
952 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
953 | + td->io_skip_bytes; | |
492158cf JA |
954 | if (io_done < td->o.size) |
955 | return 1; | |
956 | ||
957 | return 0; | |
958 | } | |
959 | ||
b29ee5b3 | 960 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 961 | { |
756867bd | 962 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 963 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 964 | td->zone_bytes = 0; |
581e7141 JA |
965 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
966 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
ebac4655 | 967 | |
c1324df1 JA |
968 | td->last_was_sync = 0; |
969 | ||
2ba1c290 JA |
970 | /* |
971 | * reset file done count if we are to start over | |
972 | */ | |
973 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 974 | td->nr_done_files = 0; |
5bfc35d7 JA |
975 | |
976 | /* | |
977 | * Set the same seed to get repeatable runs | |
978 | */ | |
979 | td_fill_rand_seeds(td); | |
b29ee5b3 JA |
980 | } |
981 | ||
982 | void reset_all_stats(struct thread_data *td) | |
983 | { | |
984 | struct timeval tv; | |
985 | int i; | |
986 | ||
987 | reset_io_counters(td); | |
988 | ||
989 | for (i = 0; i < 2; i++) { | |
990 | td->io_bytes[i] = 0; | |
991 | td->io_blocks[i] = 0; | |
992 | td->io_issues[i] = 0; | |
993 | td->ts.total_io_u[i] = 0; | |
994 | } | |
9b836561 | 995 | |
b29ee5b3 | 996 | fio_gettime(&tv, NULL); |
cda99fa0 SSP |
997 | td->ts.runtime[0] = 0; |
998 | td->ts.runtime[1] = 0; | |
b29ee5b3 JA |
999 | memcpy(&td->epoch, &tv, sizeof(tv)); |
1000 | memcpy(&td->start, &tv, sizeof(tv)); | |
1001 | } | |
1002 | ||
df9c26b1 | 1003 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
1004 | { |
1005 | struct fio_file *f; | |
1006 | unsigned int i; | |
b29ee5b3 JA |
1007 | |
1008 | reset_io_counters(td); | |
281f9b63 | 1009 | |
24ffd2c2 | 1010 | close_files(td); |
df9c26b1 | 1011 | for_each_file(td, f, i) |
d6aed795 | 1012 | fio_file_clear_done(f); |
ebac4655 JA |
1013 | } |
1014 | ||
398e8c4d JA |
1015 | static int exec_string(const char *string) |
1016 | { | |
1017 | int ret, newlen = strlen(string) + 1 + 8; | |
1018 | char *str; | |
1019 | ||
1020 | str = malloc(newlen); | |
1021 | sprintf(str, "sh -c %s", string); | |
1022 | ||
1023 | ret = system(str); | |
1024 | if (ret == -1) | |
1025 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1026 | ||
1027 | free(str); | |
1028 | return ret; | |
1029 | } | |
1030 | ||
906c8d75 JA |
1031 | /* |
1032 | * Entry point for the thread based jobs. The process based jobs end up | |
1033 | * here as well, after a little setup. | |
1034 | */ | |
ebac4655 JA |
1035 | static void *thread_main(void *data) |
1036 | { | |
cda99fa0 | 1037 | unsigned long long elapsed; |
ebac4655 | 1038 | struct thread_data *td = data; |
e8462bd8 | 1039 | pthread_condattr_t attr; |
a978ba68 | 1040 | int clear_state; |
ebac4655 | 1041 | |
2dc1bbeb | 1042 | if (!td->o.use_thread) |
ebac4655 JA |
1043 | setsid(); |
1044 | ||
1045 | td->pid = getpid(); | |
1046 | ||
5921e80c | 1047 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 1048 | |
01743ee1 JA |
1049 | INIT_FLIST_HEAD(&td->io_u_freelist); |
1050 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
1051 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
1052 | INIT_FLIST_HEAD(&td->io_log_list); | |
1053 | INIT_FLIST_HEAD(&td->io_hist_list); | |
e8462bd8 | 1054 | INIT_FLIST_HEAD(&td->verify_list); |
0d29de83 | 1055 | INIT_FLIST_HEAD(&td->trim_list); |
e8462bd8 | 1056 | pthread_mutex_init(&td->io_u_lock, NULL); |
bb5d7d0b | 1057 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 1058 | |
e8462bd8 JA |
1059 | pthread_condattr_init(&attr); |
1060 | pthread_cond_init(&td->verify_cond, &attr); | |
1061 | pthread_cond_init(&td->free_cond, &attr); | |
1062 | ||
db1cd90b | 1063 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 1064 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 1065 | fio_mutex_up(startup_mutex); |
29adda3c | 1066 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 1067 | fio_mutex_down(td->mutex); |
29adda3c | 1068 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
1069 | |
1070 | /* | |
cdd18ad8 | 1071 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
1072 | * eating a file descriptor |
1073 | */ | |
cdd18ad8 | 1074 | fio_mutex_remove(td->mutex); |
db1cd90b | 1075 | |
dfc6e751 SH |
1076 | /* |
1077 | * A new gid requires privilege, so we need to do this before setting | |
1078 | * the uid. | |
1079 | */ | |
e0b0d892 JA |
1080 | if (td->o.gid != -1U && setgid(td->o.gid)) { |
1081 | td_verror(td, errno, "setgid"); | |
1082 | goto err; | |
1083 | } | |
dfc6e751 SH |
1084 | if (td->o.uid != -1U && setuid(td->o.uid)) { |
1085 | td_verror(td, errno, "setuid"); | |
1086 | goto err; | |
1087 | } | |
e0b0d892 | 1088 | |
d84f8d49 JA |
1089 | /* |
1090 | * May alter parameters that init_io_u() will use, so we need to | |
1091 | * do this first. | |
1092 | */ | |
1093 | if (init_iolog(td)) | |
1094 | goto err; | |
1095 | ||
ebac4655 | 1096 | if (init_io_u(td)) |
db1cd90b | 1097 | goto err; |
ebac4655 | 1098 | |
e8462bd8 JA |
1099 | if (td->o.verify_async && verify_async_init(td)) |
1100 | goto err; | |
1101 | ||
1102 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { | |
e1161c32 | 1103 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 1104 | goto err; |
ebac4655 JA |
1105 | } |
1106 | ||
f484470b JA |
1107 | /* |
1108 | * If we have a gettimeofday() thread, make sure we exclude that | |
1109 | * thread from this job | |
1110 | */ | |
be4ecfdf | 1111 | if (td->o.gtod_cpu) { |
be4ecfdf | 1112 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); |
e8462bd8 | 1113 | if (fio_setaffinity(td->pid, td->o.cpumask) == -1) { |
be4ecfdf JA |
1114 | td_verror(td, errno, "cpu_set_affinity"); |
1115 | goto err; | |
1116 | } | |
1117 | } | |
1118 | ||
ac684785 | 1119 | if (td->ioprio_set) { |
ebac4655 | 1120 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1121 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1122 | goto err; |
ebac4655 JA |
1123 | } |
1124 | } | |
1125 | ||
6adb38a1 | 1126 | if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
a696fa2a JA |
1127 | goto err; |
1128 | ||
2dc1bbeb | 1129 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1130 | td_verror(td, errno, "nice"); |
db1cd90b | 1131 | goto err; |
b6f4d880 JA |
1132 | } |
1133 | ||
2dc1bbeb | 1134 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1135 | goto err; |
37f56873 | 1136 | |
2dc1bbeb | 1137 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1138 | goto err; |
1139 | ||
7d6c5283 JA |
1140 | if (td_io_init(td)) |
1141 | goto err; | |
1142 | ||
68727076 JA |
1143 | if (init_random_map(td)) |
1144 | goto err; | |
1145 | ||
2dc1bbeb | 1146 | if (td->o.exec_prerun) { |
398e8c4d | 1147 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1148 | goto err; |
1149 | } | |
4e0ba8af | 1150 | |
afad68f7 ZY |
1151 | if (td->o.pre_read) { |
1152 | if (pre_read_files(td) < 0) | |
1153 | goto err; | |
1154 | } | |
1155 | ||
69008999 | 1156 | fio_gettime(&td->epoch, NULL); |
756867bd | 1157 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 | 1158 | |
a978ba68 | 1159 | clear_state = 0; |
492158cf | 1160 | while (keep_running(td)) { |
02bcaa8c | 1161 | fio_gettime(&td->start, NULL); |
c5d3d790 JA |
1162 | memcpy(&td->ts.stat_sample_time[0], &td->start, |
1163 | sizeof(td->start)); | |
1164 | memcpy(&td->ts.stat_sample_time[1], &td->start, | |
1165 | sizeof(td->start)); | |
993bf48b | 1166 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1167 | |
cf2dd8d6 | 1168 | if (td->o.ratemin[0] || td->o.ratemin[1]) |
5ec10eaa JA |
1169 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
1170 | sizeof(td->lastrate)); | |
ebac4655 | 1171 | |
df9c26b1 JA |
1172 | if (clear_state) |
1173 | clear_io_state(td); | |
a978ba68 | 1174 | |
ebac4655 JA |
1175 | prune_io_piece_log(td); |
1176 | ||
ba0fbe10 | 1177 | do_io(td); |
ebac4655 | 1178 | |
a978ba68 JA |
1179 | clear_state = 1; |
1180 | ||
38d77cae | 1181 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
0a4957c6 | 1182 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1183 | td->ts.runtime[DDIR_READ] += elapsed; |
38d77cae JA |
1184 | } |
1185 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
0a4957c6 | 1186 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1187 | td->ts.runtime[DDIR_WRITE] += elapsed; |
38d77cae | 1188 | } |
5ec10eaa | 1189 | |
ebac4655 JA |
1190 | if (td->error || td->terminate) |
1191 | break; | |
1192 | ||
e84c73a8 SL |
1193 | if (!td->o.do_verify || |
1194 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1195 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1196 | continue; |
1197 | ||
df9c26b1 | 1198 | clear_io_state(td); |
a978ba68 | 1199 | |
02bcaa8c | 1200 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1201 | |
1202 | do_verify(td); | |
1203 | ||
cda99fa0 | 1204 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1205 | |
1206 | if (td->error || td->terminate) | |
1207 | break; | |
1208 | } | |
1209 | ||
36dff966 | 1210 | update_rusage_stat(td); |
cda99fa0 SSP |
1211 | td->ts.runtime[0] = (td->ts.runtime[0] + 999) / 1000; |
1212 | td->ts.runtime[1] = (td->ts.runtime[1] + 999) / 1000; | |
756867bd JA |
1213 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1214 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1215 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1216 | ||
d2bbb8d9 | 1217 | fio_mutex_down(writeout_mutex); |
e3cedca7 | 1218 | if (td->ts.bw_log) { |
f484470b JA |
1219 | if (td->o.bw_log_file) { |
1220 | finish_log_named(td, td->ts.bw_log, | |
1221 | td->o.bw_log_file, "bw"); | |
1222 | } else | |
e3cedca7 JA |
1223 | finish_log(td, td->ts.bw_log, "bw"); |
1224 | } | |
02af0988 JA |
1225 | if (td->ts.lat_log) { |
1226 | if (td->o.lat_log_file) { | |
1227 | finish_log_named(td, td->ts.lat_log, | |
1228 | td->o.lat_log_file, "lat"); | |
1229 | } else | |
1230 | finish_log(td, td->ts.lat_log, "lat"); | |
1231 | } | |
e3cedca7 | 1232 | if (td->ts.slat_log) { |
f484470b JA |
1233 | if (td->o.lat_log_file) { |
1234 | finish_log_named(td, td->ts.slat_log, | |
1ca95738 | 1235 | td->o.lat_log_file, "slat"); |
f484470b | 1236 | } else |
e3cedca7 JA |
1237 | finish_log(td, td->ts.slat_log, "slat"); |
1238 | } | |
1239 | if (td->ts.clat_log) { | |
f484470b JA |
1240 | if (td->o.lat_log_file) { |
1241 | finish_log_named(td, td->ts.clat_log, | |
1242 | td->o.lat_log_file, "clat"); | |
1243 | } else | |
e3cedca7 JA |
1244 | finish_log(td, td->ts.clat_log, "clat"); |
1245 | } | |
d2bbb8d9 | 1246 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1247 | if (td->o.exec_postrun) |
1248 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1249 | |
1250 | if (exitall_on_terminate) | |
390c40e2 | 1251 | terminate_threads(td->groupid); |
ebac4655 JA |
1252 | |
1253 | err: | |
5bf13a5a | 1254 | if (td->error) |
4ceb30d4 | 1255 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1256 | td->verror); |
b4707ed7 JA |
1257 | |
1258 | if (td->o.verify_async) | |
1259 | verify_async_exit(td); | |
1260 | ||
24ffd2c2 | 1261 | close_and_free_files(td); |
2866c82d | 1262 | close_ioengine(td); |
ebac4655 | 1263 | cleanup_io_u(td); |
6adb38a1 | 1264 | cgroup_shutdown(td, &cgroup_mnt); |
f29b25a3 | 1265 | |
d2ce18b5 JA |
1266 | if (td->o.cpumask_set) { |
1267 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1268 | ||
1269 | td_verror(td, ret, "fio_cpuset_exit"); | |
1270 | } | |
4e78e405 | 1271 | |
f29b25a3 JA |
1272 | /* |
1273 | * do this very late, it will log file closing as well | |
1274 | */ | |
1275 | if (td->o.write_iolog_file) | |
1276 | write_iolog_close(td); | |
1277 | ||
d23bb327 | 1278 | options_mem_free(td); |
ebac4655 | 1279 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1280 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1281 | } |
1282 | ||
906c8d75 JA |
1283 | /* |
1284 | * We cannot pass the td data into a forked process, so attach the td and | |
1285 | * pass it to the thread worker. | |
1286 | */ | |
a6418147 | 1287 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1288 | { |
1289 | struct thread_data *td; | |
a6418147 | 1290 | void *data, *ret; |
ebac4655 JA |
1291 | |
1292 | data = shmat(shmid, NULL, 0); | |
1293 | if (data == (void *) -1) { | |
a6418147 JA |
1294 | int __err = errno; |
1295 | ||
ebac4655 | 1296 | perror("shmat"); |
a6418147 | 1297 | return __err; |
ebac4655 JA |
1298 | } |
1299 | ||
1300 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1301 | ret = thread_main(td); |
ebac4655 | 1302 | shmdt(data); |
43d76807 | 1303 | return (int) (unsigned long) ret; |
ebac4655 JA |
1304 | } |
1305 | ||
906c8d75 JA |
1306 | /* |
1307 | * Run over the job map and reap the threads that have exited, if any. | |
1308 | */ | |
ebac4655 JA |
1309 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1310 | { | |
34572e28 | 1311 | struct thread_data *td; |
1f809d15 | 1312 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1313 | |
1314 | /* | |
1315 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1316 | */ | |
1f809d15 | 1317 | realthreads = pending = cputhreads = 0; |
34572e28 | 1318 | for_each_td(td, i) { |
3707f45b | 1319 | int flags = 0; |
a2f77c9f | 1320 | |
84585003 JA |
1321 | /* |
1322 | * ->io_ops is NULL for a thread that has closed its | |
1323 | * io engine | |
1324 | */ | |
ba0fbe10 | 1325 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1326 | cputhreads++; |
1f809d15 JA |
1327 | else |
1328 | realthreads++; | |
b990b5c0 | 1329 | |
a1dedc1f AC |
1330 | if (!td->pid) { |
1331 | pending++; | |
1332 | continue; | |
1333 | } | |
1334 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1335 | continue; |
2dc1bbeb | 1336 | if (td->o.use_thread) { |
3707f45b JA |
1337 | if (td->runstate == TD_EXITED) { |
1338 | td_set_runstate(td, TD_REAPED); | |
1339 | goto reaped; | |
1340 | } | |
1341 | continue; | |
1342 | } | |
a2f77c9f JA |
1343 | |
1344 | flags = WNOHANG; | |
1345 | if (td->runstate == TD_EXITED) | |
1346 | flags = 0; | |
1347 | ||
1348 | /* | |
1349 | * check if someone quit or got killed in an unusual way | |
1350 | */ | |
1351 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1352 | if (ret < 0) { |
a2f77c9f | 1353 | if (errno == ECHILD) { |
5921e80c JA |
1354 | log_err("fio: pid=%d disappeared %d\n", |
1355 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1356 | td_set_runstate(td, TD_REAPED); |
1357 | goto reaped; | |
1358 | } | |
1359 | perror("waitpid"); | |
1360 | } else if (ret == td->pid) { | |
1361 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1362 | int sig = WTERMSIG(status); |
1363 | ||
03e20d68 | 1364 | if (sig != SIGTERM) |
5ec10eaa | 1365 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1366 | (int) td->pid, sig); |
fab6aa71 JA |
1367 | td_set_runstate(td, TD_REAPED); |
1368 | goto reaped; | |
1369 | } | |
a2f77c9f JA |
1370 | if (WIFEXITED(status)) { |
1371 | if (WEXITSTATUS(status) && !td->error) | |
1372 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1373 | |
a2f77c9f JA |
1374 | td_set_runstate(td, TD_REAPED); |
1375 | goto reaped; | |
a6418147 JA |
1376 | } |
1377 | } | |
ebac4655 | 1378 | |
a2f77c9f JA |
1379 | /* |
1380 | * thread is not dead, continue | |
1381 | */ | |
e48676ba | 1382 | pending++; |
a2f77c9f | 1383 | continue; |
fab6aa71 | 1384 | reaped: |
ebac4655 | 1385 | (*nr_running)--; |
581e7141 JA |
1386 | (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); |
1387 | (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); | |
6f88bcb0 JA |
1388 | if (!td->pid) |
1389 | pending--; | |
a2f77c9f JA |
1390 | |
1391 | if (td->error) | |
1392 | exit_value++; | |
d3eeeabc JA |
1393 | |
1394 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1395 | } |
b990b5c0 | 1396 | |
1f809d15 | 1397 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1398 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1399 | } |
1400 | ||
be4ecfdf JA |
1401 | static void *gtod_thread_main(void *data) |
1402 | { | |
1403 | fio_mutex_up(startup_mutex); | |
1404 | ||
1405 | /* | |
1406 | * As long as we have jobs around, update the clock. It would be nice | |
1407 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1408 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1409 | * it - we don't want to lose precision. | |
1410 | */ | |
1411 | while (threads) { | |
1412 | fio_gtod_update(); | |
1413 | nop; | |
1414 | } | |
1415 | ||
1416 | return NULL; | |
1417 | } | |
1418 | ||
1419 | static int fio_start_gtod_thread(void) | |
1420 | { | |
304a47c7 | 1421 | pthread_attr_t attr; |
f42c153d JA |
1422 | int ret; |
1423 | ||
304a47c7 VA |
1424 | pthread_attr_init(&attr); |
1425 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
1426 | ret = pthread_create(>od_thread, &attr, gtod_thread_main, NULL); | |
1427 | pthread_attr_destroy(&attr); | |
f42c153d JA |
1428 | if (ret) { |
1429 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1430 | return 1; |
1431 | } | |
f42c153d JA |
1432 | |
1433 | ret = pthread_detach(gtod_thread); | |
1434 | if (ret) { | |
1435 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1436 | return 1; |
1437 | } | |
1438 | ||
29adda3c | 1439 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1440 | fio_mutex_down(startup_mutex); |
29adda3c | 1441 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1442 | return 0; |
1443 | } | |
1444 | ||
906c8d75 JA |
1445 | /* |
1446 | * Main function for kicking off and reaping jobs, as needed. | |
1447 | */ | |
ebac4655 JA |
1448 | static void run_threads(void) |
1449 | { | |
ebac4655 JA |
1450 | struct thread_data *td; |
1451 | unsigned long spent; | |
1452 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1453 | |
2f9ade3c JA |
1454 | if (fio_pin_memory()) |
1455 | return; | |
ebac4655 | 1456 | |
be4ecfdf JA |
1457 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1458 | return; | |
1459 | ||
c6ae0a5b | 1460 | if (!terse_output) { |
4ceb30d4 | 1461 | log_info("Starting "); |
9cedf167 | 1462 | if (nr_thread) |
4ceb30d4 | 1463 | log_info("%d thread%s", nr_thread, |
5ec10eaa | 1464 | nr_thread > 1 ? "s" : ""); |
9cedf167 JA |
1465 | if (nr_process) { |
1466 | if (nr_thread) | |
1467 | printf(" and "); | |
4ceb30d4 | 1468 | log_info("%d process%s", nr_process, |
5ec10eaa | 1469 | nr_process > 1 ? "es" : ""); |
9cedf167 | 1470 | } |
4ceb30d4 | 1471 | log_info("\n"); |
c6ae0a5b JA |
1472 | fflush(stdout); |
1473 | } | |
c04f7ec3 | 1474 | |
697a606c | 1475 | set_sig_handlers(); |
4efa970e | 1476 | |
ebac4655 JA |
1477 | todo = thread_number; |
1478 | nr_running = 0; | |
1479 | nr_started = 0; | |
1480 | m_rate = t_rate = 0; | |
1481 | ||
34572e28 | 1482 | for_each_td(td, i) { |
263e529f | 1483 | print_status_init(td->thread_number - 1); |
ebac4655 | 1484 | |
2dc1bbeb | 1485 | if (!td->o.create_serialize) { |
380cf265 | 1486 | init_disk_util(td); |
ebac4655 | 1487 | continue; |
380cf265 | 1488 | } |
ebac4655 JA |
1489 | |
1490 | /* | |
1491 | * do file setup here so it happens sequentially, | |
1492 | * we don't want X number of threads getting their | |
1493 | * client data interspersed on disk | |
1494 | */ | |
53cdc686 | 1495 | if (setup_files(td)) { |
5bf13a5a JA |
1496 | exit_value++; |
1497 | if (td->error) | |
5921e80c JA |
1498 | log_err("fio: pid=%d, err=%d/%s\n", |
1499 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1500 | td_set_runstate(td, TD_REAPED); |
1501 | todo--; | |
c69e8875 JA |
1502 | } else { |
1503 | struct fio_file *f; | |
1504 | unsigned int i; | |
1505 | ||
1506 | /* | |
1507 | * for sharing to work, each job must always open | |
1508 | * its own files. so close them, if we opened them | |
1509 | * for creation | |
1510 | */ | |
22a57ba8 JA |
1511 | for_each_file(td, f, i) { |
1512 | if (fio_file_open(f)) | |
1513 | td_io_close_file(td, f); | |
22a57ba8 | 1514 | } |
5ec10eaa | 1515 | } |
380cf265 JA |
1516 | |
1517 | init_disk_util(td); | |
ebac4655 JA |
1518 | } |
1519 | ||
a2f77c9f JA |
1520 | set_genesis_time(); |
1521 | ||
ebac4655 | 1522 | while (todo) { |
75154845 JA |
1523 | struct thread_data *map[MAX_JOBS]; |
1524 | struct timeval this_start; | |
1525 | int this_jobs = 0, left; | |
1526 | ||
ebac4655 JA |
1527 | /* |
1528 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1529 | */ | |
34572e28 | 1530 | for_each_td(td, i) { |
ebac4655 JA |
1531 | if (td->runstate != TD_NOT_CREATED) |
1532 | continue; | |
1533 | ||
1534 | /* | |
1535 | * never got a chance to start, killed by other | |
1536 | * thread for some reason | |
1537 | */ | |
1538 | if (td->terminate) { | |
1539 | todo--; | |
1540 | continue; | |
1541 | } | |
1542 | ||
2dc1bbeb | 1543 | if (td->o.start_delay) { |
263e529f | 1544 | spent = mtime_since_genesis(); |
ebac4655 | 1545 | |
2dc1bbeb | 1546 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1547 | continue; |
1548 | } | |
1549 | ||
6f88bcb0 JA |
1550 | if (td->o.stonewall && (nr_started || nr_running)) { |
1551 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1552 | td->o.name); | |
ebac4655 | 1553 | break; |
6f88bcb0 | 1554 | } |
ebac4655 | 1555 | |
75154845 JA |
1556 | /* |
1557 | * Set state to created. Thread will transition | |
1558 | * to TD_INITIALIZED when it's done setting up. | |
1559 | */ | |
ebac4655 | 1560 | td_set_runstate(td, TD_CREATED); |
75154845 | 1561 | map[this_jobs++] = td; |
ebac4655 JA |
1562 | nr_started++; |
1563 | ||
2dc1bbeb | 1564 | if (td->o.use_thread) { |
f42c153d JA |
1565 | int ret; |
1566 | ||
ee56ad50 | 1567 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1568 | ret = pthread_create(&td->thread, NULL, |
1569 | thread_main, td); | |
1570 | if (ret) { | |
1571 | log_err("pthread_create: %s\n", | |
1572 | strerror(ret)); | |
ebac4655 | 1573 | nr_started--; |
c8bb6faf | 1574 | break; |
ebac4655 | 1575 | } |
f42c153d JA |
1576 | ret = pthread_detach(td->thread); |
1577 | if (ret) | |
1578 | log_err("pthread_detach: %s", | |
1579 | strerror(ret)); | |
ebac4655 | 1580 | } else { |
5e1d306e | 1581 | pid_t pid; |
ee56ad50 | 1582 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1583 | pid = fork(); |
1584 | if (!pid) { | |
a6418147 JA |
1585 | int ret = fork_main(shm_id, i); |
1586 | ||
5e1d306e JA |
1587 | _exit(ret); |
1588 | } else if (i == fio_debug_jobno) | |
1589 | *fio_debug_jobp = pid; | |
ebac4655 | 1590 | } |
29adda3c | 1591 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
656b1393 JA |
1592 | if (fio_mutex_down_timeout(startup_mutex, 10)) { |
1593 | log_err("fio: job startup hung? exiting.\n"); | |
1594 | terminate_threads(TERMINATE_ALL); | |
1595 | fio_abort = 1; | |
1596 | nr_started--; | |
1597 | break; | |
1598 | } | |
29adda3c | 1599 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1600 | } |
1601 | ||
1602 | /* | |
75154845 JA |
1603 | * Wait for the started threads to transition to |
1604 | * TD_INITIALIZED. | |
ebac4655 | 1605 | */ |
02bcaa8c | 1606 | fio_gettime(&this_start, NULL); |
75154845 | 1607 | left = this_jobs; |
6ce15a32 | 1608 | while (left && !fio_abort) { |
75154845 JA |
1609 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1610 | break; | |
1611 | ||
1612 | usleep(100000); | |
1613 | ||
1614 | for (i = 0; i < this_jobs; i++) { | |
1615 | td = map[i]; | |
1616 | if (!td) | |
1617 | continue; | |
b6f4d880 | 1618 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1619 | map[i] = NULL; |
1620 | left--; | |
b6f4d880 JA |
1621 | } else if (td->runstate >= TD_EXITED) { |
1622 | map[i] = NULL; | |
1623 | left--; | |
1624 | todo--; | |
1625 | nr_running++; /* work-around... */ | |
75154845 JA |
1626 | } |
1627 | } | |
1628 | } | |
1629 | ||
1630 | if (left) { | |
3b70d7e5 | 1631 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1632 | for (i = 0; i < this_jobs; i++) { |
1633 | td = map[i]; | |
1634 | if (!td) | |
1635 | continue; | |
1636 | kill(td->pid, SIGTERM); | |
1637 | } | |
1638 | break; | |
1639 | } | |
1640 | ||
1641 | /* | |
b6f4d880 | 1642 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1643 | */ |
34572e28 | 1644 | for_each_td(td, i) { |
75154845 | 1645 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1646 | continue; |
1647 | ||
b29ee5b3 JA |
1648 | if (in_ramp_time(td)) |
1649 | td_set_runstate(td, TD_RAMP); | |
1650 | else | |
1651 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1652 | nr_running++; |
1653 | nr_started--; | |
581e7141 JA |
1654 | m_rate += td->o.ratemin[0] + td->o.ratemin[1]; |
1655 | t_rate += td->o.rate[0] + td->o.rate[1]; | |
75154845 | 1656 | todo--; |
cdd18ad8 | 1657 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1658 | } |
1659 | ||
1660 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1661 | ||
1662 | if (todo) | |
1663 | usleep(100000); | |
1664 | } | |
1665 | ||
1666 | while (nr_running) { | |
1667 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1668 | usleep(10000); | |
1669 | } | |
1670 | ||
1671 | update_io_ticks(); | |
2f9ade3c | 1672 | fio_unpin_memory(); |
ebac4655 JA |
1673 | } |
1674 | ||
ebac4655 JA |
1675 | int main(int argc, char *argv[]) |
1676 | { | |
29d610e1 JA |
1677 | long ps; |
1678 | ||
2e5cdb11 | 1679 | sinit(); |
d54a144d | 1680 | init_rand(&__fio_rand_state); |
2e5cdb11 | 1681 | |
dbe1125e JA |
1682 | /* |
1683 | * We need locale for number printing, if it isn't set then just | |
1684 | * go with the US format. | |
1685 | */ | |
1686 | if (!getenv("LC_NUMERIC")) | |
1687 | setlocale(LC_NUMERIC, "en_US"); | |
1688 | ||
29d610e1 JA |
1689 | ps = sysconf(_SC_PAGESIZE); |
1690 | if (ps < 0) { | |
1691 | log_err("Failed to get page size\n"); | |
1692 | return 1; | |
1693 | } | |
1694 | ||
cfc99db7 | 1695 | page_size = ps; |
29d610e1 JA |
1696 | page_mask = ps - 1; |
1697 | ||
74929ac2 JA |
1698 | fio_keywords_init(); |
1699 | ||
1700 | if (parse_options(argc, argv)) | |
1701 | return 1; | |
1702 | ||
07b3232d JA |
1703 | if (exec_profile && load_profile(exec_profile)) |
1704 | return 1; | |
1705 | ||
74929ac2 JA |
1706 | if (!thread_number) |
1707 | return 0; | |
1708 | ||
bb3884d8 JA |
1709 | if (write_bw_log) { |
1710 | setup_log(&agg_io_log[DDIR_READ]); | |
1711 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1712 | } | |
1713 | ||
cdd18ad8 | 1714 | startup_mutex = fio_mutex_init(0); |
03e20d68 BC |
1715 | if (startup_mutex == NULL) |
1716 | return 1; | |
d2bbb8d9 | 1717 | writeout_mutex = fio_mutex_init(1); |
03e20d68 BC |
1718 | if (writeout_mutex == NULL) |
1719 | return 1; | |
07739b57 | 1720 | |
a2f77c9f | 1721 | set_genesis_time(); |
7985701b | 1722 | create_disk_util_thread(); |
ebac4655 | 1723 | |
dae5341c JA |
1724 | cgroup_list = smalloc(sizeof(*cgroup_list)); |
1725 | INIT_FLIST_HEAD(cgroup_list); | |
1726 | ||
ebac4655 | 1727 | run_threads(); |
6ce15a32 | 1728 | |
bb3884d8 | 1729 | if (!fio_abort) { |
6ce15a32 | 1730 | show_run_stats(); |
bb3884d8 | 1731 | if (write_bw_log) { |
5ec10eaa JA |
1732 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1733 | __finish_log(agg_io_log[DDIR_WRITE], | |
1734 | "agg-write_bw.log"); | |
bb3884d8 JA |
1735 | } |
1736 | } | |
ebac4655 | 1737 | |
dae5341c JA |
1738 | cgroup_kill(cgroup_list); |
1739 | sfree(cgroup_list); | |
61eb313e | 1740 | sfree(cgroup_mnt); |
39f22027 | 1741 | |
cdd18ad8 | 1742 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1743 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1744 | return exit_value; |
ebac4655 | 1745 | } |