Commit | Line | Data |
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ebac4655 JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
aae22ca7 | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
ebac4655 | 6 | * |
8e9fe637 JA |
7 | * The license below covers all files distributed with fio unless otherwise |
8 | * noted in the file itself. | |
9 | * | |
ebac4655 | 10 | * This program is free software; you can redistribute it and/or modify |
8e9fe637 JA |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. | |
ebac4655 JA |
13 | * |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
ebac4655 JA |
24 | #include <unistd.h> |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
9b836561 | 27 | #include <limits.h> |
ebac4655 JA |
28 | #include <signal.h> |
29 | #include <time.h> | |
dbe1125e | 30 | #include <locale.h> |
36167d82 | 31 | #include <assert.h> |
a5b01f1b | 32 | #include <time.h> |
ebac4655 JA |
33 | #include <sys/stat.h> |
34 | #include <sys/wait.h> | |
35 | #include <sys/ipc.h> | |
36 | #include <sys/shm.h> | |
ebac4655 JA |
37 | #include <sys/mman.h> |
38 | ||
39 | #include "fio.h" | |
210f43b3 | 40 | #include "hash.h" |
2e5cdb11 | 41 | #include "smalloc.h" |
4f5af7b2 | 42 | #include "verify.h" |
a917a8b3 | 43 | #include "trim.h" |
7c9b1bce | 44 | #include "diskutil.h" |
a696fa2a | 45 | #include "cgroup.h" |
07b3232d | 46 | #include "profile.h" |
d54a144d | 47 | #include "lib/rand.h" |
91aea6ec | 48 | #include "memalign.h" |
009b1be4 | 49 | #include "server.h" |
ebac4655 | 50 | |
cfc99db7 JA |
51 | unsigned long page_mask; |
52 | unsigned long page_size; | |
d529ee19 JA |
53 | |
54 | #define PAGE_ALIGN(buf) \ | |
29d610e1 | 55 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
ebac4655 JA |
56 | |
57 | int groupid = 0; | |
58 | int thread_number = 0; | |
9cedf167 JA |
59 | int nr_process = 0; |
60 | int nr_thread = 0; | |
ebac4655 | 61 | int shm_id = 0; |
53cdc686 | 62 | int temp_stall_ts; |
d3eeeabc | 63 | unsigned long done_secs = 0; |
ebac4655 | 64 | |
d09a64a0 JA |
65 | /* |
66 | * Just expose an empty list, if the OS does not support disk util stats | |
67 | */ | |
68 | #ifndef FIO_HAVE_DISK_UTIL | |
69 | FLIST_HEAD(disk_list); | |
70 | #endif | |
71 | ||
cdd18ad8 | 72 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 73 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 74 | static volatile int fio_abort; |
437c9b71 | 75 | static int exit_value; |
be4ecfdf | 76 | static pthread_t gtod_thread; |
7985701b | 77 | static pthread_t disk_util_thread; |
dae5341c | 78 | static struct flist_head *cgroup_list; |
6adb38a1 | 79 | static char *cgroup_mnt; |
ebac4655 | 80 | |
d3cc4ebf JA |
81 | unsigned long arch_flags = 0; |
82 | ||
bb3884d8 JA |
83 | struct io_log *agg_io_log[2]; |
84 | ||
75154845 | 85 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 86 | |
cca84643 JA |
87 | static const char *fio_os_strings[os_nr] = { |
88 | "Invalid", | |
89 | "Linux", | |
90 | "AIX", | |
91 | "FreeBSD", | |
92 | "HP-UX", | |
93 | "OSX", | |
94 | "NetBSD", | |
95 | "Solaris", | |
96 | "Windows" | |
97 | }; | |
98 | ||
99 | static const char *fio_arch_strings[arch_nr] = { | |
100 | "Invalid", | |
101 | "x86-64", | |
102 | "x86", | |
103 | "ppc", | |
104 | "ia64", | |
105 | "s390", | |
106 | "alpha", | |
107 | "sparc", | |
108 | "sparc64", | |
109 | "arm", | |
110 | "sh", | |
111 | "hppa", | |
112 | "generic" | |
113 | }; | |
114 | ||
115 | const char *fio_get_os_string(int nr) | |
116 | { | |
117 | if (nr < os_nr) | |
118 | return fio_os_strings[nr]; | |
119 | ||
120 | return NULL; | |
121 | } | |
122 | ||
123 | const char *fio_get_arch_string(int nr) | |
124 | { | |
125 | if (nr < arch_nr) | |
126 | return fio_arch_strings[nr]; | |
127 | ||
128 | return NULL; | |
129 | } | |
130 | ||
b29ee5b3 | 131 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 132 | { |
d8fab1b6 JA |
133 | if (td->runstate == runstate) |
134 | return; | |
135 | ||
5921e80c JA |
136 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
137 | td->runstate, runstate); | |
6ce15a32 JA |
138 | td->runstate = runstate; |
139 | } | |
140 | ||
cc0df00a | 141 | void fio_terminate_threads(int group_id) |
ebac4655 | 142 | { |
34572e28 | 143 | struct thread_data *td; |
ebac4655 JA |
144 | int i; |
145 | ||
6f88bcb0 JA |
146 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
147 | ||
34572e28 | 148 | for_each_td(td, i) { |
ebac4655 | 149 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 150 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 151 | td->o.name, (int) td->pid); |
ad830ed7 JA |
152 | td->terminate = 1; |
153 | td->o.start_delay = 0; | |
154 | ||
7a93ab19 JA |
155 | /* |
156 | * if the thread is running, just let it exit | |
157 | */ | |
6aa27816 MC |
158 | if (!td->pid) |
159 | continue; | |
160 | else if (td->runstate < TD_RAMP) | |
03e20d68 | 161 | kill(td->pid, SIGTERM); |
f63f7f3b JA |
162 | else { |
163 | struct ioengine_ops *ops = td->io_ops; | |
164 | ||
03e20d68 BC |
165 | if (ops && (ops->flags & FIO_SIGTERM)) |
166 | kill(td->pid, SIGTERM); | |
f63f7f3b | 167 | } |
ebac4655 JA |
168 | } |
169 | } | |
170 | } | |
171 | ||
697a606c JA |
172 | static void sig_int(int sig) |
173 | { | |
174 | if (threads) { | |
7b821684 JA |
175 | if (is_backend) |
176 | fio_server_got_signal(sig); | |
177 | else { | |
178 | log_info("\nfio: terminating on signal %d\n", sig); | |
179 | fflush(stdout); | |
180 | exit_value = 128; | |
181 | } | |
182 | ||
cc0df00a | 183 | fio_terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
184 | } |
185 | } | |
186 | ||
7985701b | 187 | static void *disk_thread_main(void *data) |
a5b01f1b | 188 | { |
7985701b JA |
189 | fio_mutex_up(startup_mutex); |
190 | ||
191 | while (threads) { | |
192 | usleep(DISK_UTIL_MSEC * 1000); | |
9a793c2f JA |
193 | if (!threads) |
194 | break; | |
7985701b | 195 | update_io_ticks(); |
cf451d1e | 196 | |
af9c9fb3 | 197 | if (!is_backend) |
cf451d1e | 198 | print_thread_status(); |
7985701b JA |
199 | } |
200 | ||
201 | return NULL; | |
a5b01f1b JA |
202 | } |
203 | ||
7985701b | 204 | static int create_disk_util_thread(void) |
a5b01f1b | 205 | { |
7985701b | 206 | int ret; |
a5b01f1b | 207 | |
69204d6e | 208 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
7985701b JA |
209 | if (ret) { |
210 | log_err("Can't create disk util thread: %s\n", strerror(ret)); | |
211 | return 1; | |
212 | } | |
a5b01f1b | 213 | |
7985701b JA |
214 | ret = pthread_detach(disk_util_thread); |
215 | if (ret) { | |
216 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); | |
217 | return 1; | |
218 | } | |
03e20d68 | 219 | |
7985701b JA |
220 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
221 | fio_mutex_down(startup_mutex); | |
222 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
223 | return 0; | |
a5b01f1b JA |
224 | } |
225 | ||
697a606c JA |
226 | static void set_sig_handlers(void) |
227 | { | |
228 | struct sigaction act; | |
229 | ||
697a606c JA |
230 | memset(&act, 0, sizeof(act)); |
231 | act.sa_handler = sig_int; | |
232 | act.sa_flags = SA_RESTART; | |
233 | sigaction(SIGINT, &act, NULL); | |
de79c915 | 234 | |
5f8f9726 | 235 | memset(&act, 0, sizeof(act)); |
b20b6be4 | 236 | act.sa_handler = sig_int; |
5f8f9726 | 237 | act.sa_flags = SA_RESTART; |
03e20d68 | 238 | sigaction(SIGTERM, &act, NULL); |
cc0df00a JA |
239 | |
240 | if (is_backend) { | |
241 | memset(&act, 0, sizeof(act)); | |
242 | act.sa_handler = sig_int; | |
243 | act.sa_flags = SA_RESTART; | |
244 | sigaction(SIGPIPE, &act, NULL); | |
245 | } | |
697a606c JA |
246 | } |
247 | ||
906c8d75 JA |
248 | /* |
249 | * Check if we are above the minimum rate given. | |
250 | */ | |
581e7141 | 251 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
bd93e34b | 252 | enum fio_ddir ddir) |
ebac4655 | 253 | { |
0904200b | 254 | unsigned long long bytes = 0; |
4e991c23 | 255 | unsigned long iops = 0; |
ebac4655 JA |
256 | unsigned long spent; |
257 | unsigned long rate; | |
581e7141 JA |
258 | unsigned int ratemin = 0; |
259 | unsigned int rate_iops = 0; | |
260 | unsigned int rate_iops_min = 0; | |
ebac4655 | 261 | |
ff58fced JA |
262 | assert(ddir_rw(ddir)); |
263 | ||
d982d873 JA |
264 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
265 | return 0; | |
266 | ||
ebac4655 JA |
267 | /* |
268 | * allow a 2 second settle period in the beginning | |
269 | */ | |
270 | if (mtime_since(&td->start, now) < 2000) | |
271 | return 0; | |
272 | ||
c8eeb9df | 273 | iops += td->this_io_blocks[ddir]; |
581e7141 JA |
274 | bytes += td->this_io_bytes[ddir]; |
275 | ratemin += td->o.ratemin[ddir]; | |
276 | rate_iops += td->o.rate_iops[ddir]; | |
277 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
0904200b | 278 | |
ebac4655 JA |
279 | /* |
280 | * if rate blocks is set, sample is running | |
281 | */ | |
581e7141 JA |
282 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
283 | spent = mtime_since(&td->lastrate[ddir], now); | |
2dc1bbeb | 284 | if (spent < td->o.ratecycle) |
ebac4655 JA |
285 | return 0; |
286 | ||
581e7141 | 287 | if (td->o.rate[ddir]) { |
4e991c23 JA |
288 | /* |
289 | * check bandwidth specified rate | |
290 | */ | |
581e7141 | 291 | if (bytes < td->rate_bytes[ddir]) { |
5ec10eaa | 292 | log_err("%s: min rate %u not met\n", td->o.name, |
581e7141 | 293 | ratemin); |
4e991c23 JA |
294 | return 1; |
295 | } else { | |
581e7141 JA |
296 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
297 | if (rate < ratemin || | |
298 | bytes < td->rate_bytes[ddir]) { | |
5ec10eaa | 299 | log_err("%s: min rate %u not met, got" |
b22989b9 | 300 | " %luKB/sec\n", td->o.name, |
581e7141 | 301 | ratemin, rate); |
4e991c23 JA |
302 | return 1; |
303 | } | |
304 | } | |
413dd459 | 305 | } else { |
4e991c23 JA |
306 | /* |
307 | * checks iops specified rate | |
308 | */ | |
581e7141 | 309 | if (iops < rate_iops) { |
5ec10eaa | 310 | log_err("%s: min iops rate %u not met\n", |
581e7141 | 311 | td->o.name, rate_iops); |
413dd459 | 312 | return 1; |
4e991c23 | 313 | } else { |
581e7141 JA |
314 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
315 | if (rate < rate_iops_min || | |
316 | iops < td->rate_blocks[ddir]) { | |
5ec10eaa JA |
317 | log_err("%s: min iops rate %u not met," |
318 | " got %lu\n", td->o.name, | |
581e7141 | 319 | rate_iops_min, rate); |
4e991c23 | 320 | } |
413dd459 | 321 | } |
ebac4655 JA |
322 | } |
323 | } | |
324 | ||
581e7141 JA |
325 | td->rate_bytes[ddir] = bytes; |
326 | td->rate_blocks[ddir] = iops; | |
327 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
ebac4655 JA |
328 | return 0; |
329 | } | |
330 | ||
581e7141 JA |
331 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
332 | unsigned long *bytes_done) | |
333 | { | |
334 | int ret = 0; | |
335 | ||
336 | if (bytes_done[0]) | |
337 | ret |= __check_min_rate(td, now, 0); | |
338 | if (bytes_done[1]) | |
339 | ret |= __check_min_rate(td, now, 1); | |
340 | ||
341 | return ret; | |
342 | } | |
343 | ||
ebac4655 JA |
344 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
345 | { | |
2dc1bbeb | 346 | if (!td->o.timeout) |
ebac4655 | 347 | return 0; |
2dc1bbeb | 348 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
349 | return 1; |
350 | ||
351 | return 0; | |
352 | } | |
353 | ||
906c8d75 JA |
354 | /* |
355 | * When job exits, we can cancel the in-flight IO if we are using async | |
356 | * io. Attempt to do so. | |
357 | */ | |
ebac4655 JA |
358 | static void cleanup_pending_aio(struct thread_data *td) |
359 | { | |
01743ee1 | 360 | struct flist_head *entry, *n; |
ebac4655 JA |
361 | struct io_u *io_u; |
362 | int r; | |
363 | ||
364 | /* | |
365 | * get immediately available events, if any | |
366 | */ | |
581e7141 | 367 | r = io_u_queued_complete(td, 0, NULL); |
b2fdda43 JA |
368 | if (r < 0) |
369 | return; | |
ebac4655 JA |
370 | |
371 | /* | |
372 | * now cancel remaining active events | |
373 | */ | |
2866c82d | 374 | if (td->io_ops->cancel) { |
01743ee1 JA |
375 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
376 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 377 | |
0c6e7517 JA |
378 | /* |
379 | * if the io_u isn't in flight, then that generally | |
380 | * means someone leaked an io_u. complain but fix | |
381 | * it up, so we don't stall here. | |
382 | */ | |
383 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
384 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 385 | put_io_u(td, io_u); |
0c6e7517 JA |
386 | } else { |
387 | r = td->io_ops->cancel(td, io_u); | |
388 | if (!r) | |
389 | put_io_u(td, io_u); | |
390 | } | |
ebac4655 JA |
391 | } |
392 | } | |
393 | ||
97601024 | 394 | if (td->cur_depth) |
581e7141 | 395 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
ebac4655 JA |
396 | } |
397 | ||
858a3d47 JA |
398 | /* |
399 | * Helper to handle the final sync of a file. Works just like the normal | |
400 | * io path, just does everything sync. | |
401 | */ | |
402 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
403 | { | |
404 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
405 | int ret; |
406 | ||
407 | if (!io_u) | |
408 | return 1; | |
409 | ||
410 | io_u->ddir = DDIR_SYNC; | |
411 | io_u->file = f; | |
412 | ||
413 | if (td_io_prep(td, io_u)) { | |
414 | put_io_u(td, io_u); | |
415 | return 1; | |
416 | } | |
417 | ||
755200a3 | 418 | requeue: |
858a3d47 | 419 | ret = td_io_queue(td, io_u); |
36167d82 | 420 | if (ret < 0) { |
e1161c32 | 421 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 422 | put_io_u(td, io_u); |
858a3d47 | 423 | return 1; |
36167d82 | 424 | } else if (ret == FIO_Q_QUEUED) { |
581e7141 | 425 | if (io_u_queued_complete(td, 1, NULL) < 0) |
36167d82 | 426 | return 1; |
36167d82 JA |
427 | } else if (ret == FIO_Q_COMPLETED) { |
428 | if (io_u->error) { | |
e1161c32 | 429 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
430 | return 1; |
431 | } | |
858a3d47 | 432 | |
581e7141 | 433 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
b2fdda43 | 434 | return 1; |
755200a3 JA |
435 | } else if (ret == FIO_Q_BUSY) { |
436 | if (td_io_commit(td)) | |
437 | return 1; | |
438 | goto requeue; | |
858a3d47 JA |
439 | } |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
687c6a23 JA |
444 | static inline void __update_tv_cache(struct thread_data *td) |
445 | { | |
446 | fio_gettime(&td->tv_cache, NULL); | |
447 | } | |
448 | ||
993bf48b JA |
449 | static inline void update_tv_cache(struct thread_data *td) |
450 | { | |
451 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
687c6a23 | 452 | __update_tv_cache(td); |
993bf48b JA |
453 | } |
454 | ||
f2bba182 RR |
455 | static int break_on_this_error(struct thread_data *td, int *retptr) |
456 | { | |
457 | int ret = *retptr; | |
458 | ||
459 | if (ret < 0 || td->error) { | |
460 | int err; | |
461 | ||
1ec99eea JA |
462 | if (!td->o.continue_on_error) |
463 | return 1; | |
f2bba182 RR |
464 | |
465 | if (ret < 0) | |
466 | err = -ret; | |
467 | else | |
468 | err = td->error; | |
469 | ||
f2bba182 RR |
470 | if (td_non_fatal_error(err)) { |
471 | /* | |
472 | * Continue with the I/Os in case of | |
473 | * a non fatal error. | |
474 | */ | |
8a4f8a24 | 475 | update_error_count(td, err); |
f2bba182 RR |
476 | td_clear_error(td); |
477 | *retptr = 0; | |
478 | return 0; | |
8a4f8a24 RR |
479 | } else if (td->o.fill_device && err == ENOSPC) { |
480 | /* | |
481 | * We expect to hit this error if | |
482 | * fill_device option is set. | |
483 | */ | |
484 | td_clear_error(td); | |
485 | td->terminate = 1; | |
486 | return 1; | |
f2bba182 RR |
487 | } else { |
488 | /* | |
489 | * Stop the I/O in case of a fatal | |
490 | * error. | |
491 | */ | |
8a4f8a24 | 492 | update_error_count(td, err); |
f2bba182 RR |
493 | return 1; |
494 | } | |
495 | } | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
906c8d75 | 500 | /* |
34403fb1 | 501 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
502 | * reads the blocks back in, and checks the crc/md5 of the data. |
503 | */ | |
1e97cce9 | 504 | static void do_verify(struct thread_data *td) |
ebac4655 | 505 | { |
53cdc686 | 506 | struct fio_file *f; |
36167d82 | 507 | struct io_u *io_u; |
af52b345 JA |
508 | int ret, min_events; |
509 | unsigned int i; | |
e5b401d4 | 510 | |
008618a8 JA |
511 | dprint(FD_VERIFY, "starting loop\n"); |
512 | ||
e5b401d4 JA |
513 | /* |
514 | * sync io first and invalidate cache, to make sure we really | |
515 | * read from disk. | |
516 | */ | |
517 | for_each_file(td, f, i) { | |
d6aed795 | 518 | if (!fio_file_open(f)) |
3d7b485f | 519 | continue; |
b2fdda43 JA |
520 | if (fio_io_sync(td, f)) |
521 | break; | |
522 | if (file_invalidate_cache(td, f)) | |
523 | break; | |
e5b401d4 | 524 | } |
ebac4655 | 525 | |
b2fdda43 JA |
526 | if (td->error) |
527 | return; | |
528 | ||
ebac4655 JA |
529 | td_set_runstate(td, TD_VERIFYING); |
530 | ||
36167d82 JA |
531 | io_u = NULL; |
532 | while (!td->terminate) { | |
4950421a | 533 | int ret2, full; |
5451792e | 534 | |
993bf48b JA |
535 | update_tv_cache(td); |
536 | ||
537 | if (runtime_exceeded(td, &td->tv_cache)) { | |
687c6a23 JA |
538 | __update_tv_cache(td); |
539 | if (runtime_exceeded(td, &td->tv_cache)) { | |
540 | td->terminate = 1; | |
541 | break; | |
542 | } | |
069c2918 | 543 | } |
02bcaa8c | 544 | |
dcb4830d RR |
545 | io_u = __get_io_u(td); |
546 | if (!io_u) | |
547 | break; | |
548 | ||
069c2918 JA |
549 | if (get_next_verify(td, io_u)) { |
550 | put_io_u(td, io_u); | |
ebac4655 | 551 | break; |
069c2918 | 552 | } |
ebac4655 | 553 | |
069c2918 JA |
554 | if (td_io_prep(td, io_u)) { |
555 | put_io_u(td, io_u); | |
53cdc686 | 556 | break; |
069c2918 | 557 | } |
d7762cf8 | 558 | |
e8462bd8 JA |
559 | if (td->o.verify_async) |
560 | io_u->end_io = verify_io_u_async; | |
561 | else | |
562 | io_u->end_io = verify_io_u; | |
53cdc686 | 563 | |
11786802 | 564 | ret = td_io_queue(td, io_u); |
36167d82 JA |
565 | switch (ret) { |
566 | case FIO_Q_COMPLETED: | |
f2bba182 | 567 | if (io_u->error) { |
22819ec2 | 568 | ret = -io_u->error; |
f2bba182 RR |
569 | clear_io_u(td, io_u); |
570 | } else if (io_u->resid) { | |
36167d82 | 571 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 572 | |
9e9d164e JA |
573 | /* |
574 | * zero read, fail | |
575 | */ | |
576 | if (!bytes) { | |
41d9f0fd | 577 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
578 | put_io_u(td, io_u); |
579 | break; | |
580 | } | |
8400d9b2 | 581 | |
36167d82 JA |
582 | io_u->xfer_buflen = io_u->resid; |
583 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
584 | io_u->offset += bytes; |
585 | ||
ff58fced JA |
586 | if (ddir_rw(io_u->ddir)) |
587 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 588 | |
2b13e716 | 589 | f = io_u->file; |
d460eb31 | 590 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
591 | goto sync_done; |
592 | ||
11786802 JA |
593 | requeue_io_u(td, &io_u); |
594 | } else { | |
8400d9b2 | 595 | sync_done: |
581e7141 | 596 | ret = io_u_sync_complete(td, io_u, NULL); |
11786802 JA |
597 | if (ret < 0) |
598 | break; | |
36167d82 | 599 | } |
36167d82 JA |
600 | continue; |
601 | case FIO_Q_QUEUED: | |
602 | break; | |
755200a3 JA |
603 | case FIO_Q_BUSY: |
604 | requeue_io_u(td, &io_u); | |
5451792e JA |
605 | ret2 = td_io_commit(td); |
606 | if (ret2 < 0) | |
607 | ret = ret2; | |
755200a3 | 608 | break; |
36167d82 JA |
609 | default: |
610 | assert(ret < 0); | |
e1161c32 | 611 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
612 | break; |
613 | } | |
614 | ||
f2bba182 | 615 | if (break_on_this_error(td, &ret)) |
3af6ef39 JA |
616 | break; |
617 | ||
ebac4655 | 618 | /* |
3af6ef39 | 619 | * if we can queue more, do so. but check if there are |
ccc02050 JA |
620 | * completed io_u's first. Note that we can get BUSY even |
621 | * without IO queued, if the system is resource starved. | |
ebac4655 | 622 | */ |
ccc02050 | 623 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
4950421a | 624 | if (full || !td->o.iodepth_batch_complete) { |
6a96276c RR |
625 | min_events = min(td->o.iodepth_batch_complete, |
626 | td->cur_depth); | |
1f84f1d9 | 627 | if (full && !min_events && td->o.iodepth_batch_complete != 0) |
838bc709 | 628 | min_events = 1; |
e916b390 | 629 | |
4950421a JA |
630 | do { |
631 | /* | |
632 | * Reap required number of io units, if any, | |
633 | * and do the verification on them through | |
634 | * the callback handler | |
635 | */ | |
581e7141 | 636 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
4950421a JA |
637 | ret = -1; |
638 | break; | |
639 | } | |
640 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
641 | } | |
642 | if (ret < 0) | |
ebac4655 | 643 | break; |
36167d82 | 644 | } |
ebac4655 | 645 | |
c01c0395 JA |
646 | if (!td->error) { |
647 | min_events = td->cur_depth; | |
648 | ||
649 | if (min_events) | |
581e7141 | 650 | ret = io_u_queued_complete(td, min_events, NULL); |
c01c0395 | 651 | } else |
ebac4655 JA |
652 | cleanup_pending_aio(td); |
653 | ||
654 | td_set_runstate(td, TD_RUNNING); | |
008618a8 JA |
655 | |
656 | dprint(FD_VERIFY, "exiting loop\n"); | |
ebac4655 JA |
657 | } |
658 | ||
32cd46a0 | 659 | /* |
906c8d75 | 660 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
661 | * and reaps them, checking for rate and errors along the way. |
662 | */ | |
ebac4655 JA |
663 | static void do_io(struct thread_data *td) |
664 | { | |
af52b345 JA |
665 | unsigned int i; |
666 | int ret = 0; | |
ebac4655 | 667 | |
b29ee5b3 JA |
668 | if (in_ramp_time(td)) |
669 | td_set_runstate(td, TD_RAMP); | |
670 | else | |
671 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 672 | |
457bf399 | 673 | while ( (td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
a917a8b3 | 674 | (!flist_empty(&td->trim_list)) || |
457bf399 | 675 | ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) ) { |
97601024 | 676 | struct timeval comp_time; |
581e7141 | 677 | unsigned long bytes_done[2] = { 0, 0 }; |
84585003 | 678 | int min_evts = 0; |
ebac4655 | 679 | struct io_u *io_u; |
4950421a | 680 | int ret2, full; |
ebac4655 JA |
681 | |
682 | if (td->terminate) | |
683 | break; | |
684 | ||
993bf48b | 685 | update_tv_cache(td); |
97601024 | 686 | |
993bf48b | 687 | if (runtime_exceeded(td, &td->tv_cache)) { |
687c6a23 JA |
688 | __update_tv_cache(td); |
689 | if (runtime_exceeded(td, &td->tv_cache)) { | |
690 | td->terminate = 1; | |
691 | break; | |
692 | } | |
97601024 | 693 | } |
36167d82 | 694 | |
dcb4830d RR |
695 | io_u = get_io_u(td); |
696 | if (!io_u) | |
697 | break; | |
698 | ||
b67740d3 JA |
699 | /* |
700 | * Add verification end_io handler, if asked to verify | |
701 | * a previously written file. | |
702 | */ | |
715d2b3e JA |
703 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && |
704 | !td_rw(td)) { | |
e8462bd8 JA |
705 | if (td->o.verify_async) |
706 | io_u->end_io = verify_io_u_async; | |
707 | else | |
708 | io_u->end_io = verify_io_u; | |
d8fab1b6 | 709 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
710 | } else if (in_ramp_time(td)) |
711 | td_set_runstate(td, TD_RAMP); | |
712 | else | |
d8fab1b6 | 713 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 714 | |
11786802 | 715 | ret = td_io_queue(td, io_u); |
36167d82 JA |
716 | switch (ret) { |
717 | case FIO_Q_COMPLETED: | |
f2bba182 | 718 | if (io_u->error) { |
5451792e | 719 | ret = -io_u->error; |
f2bba182 RR |
720 | clear_io_u(td, io_u); |
721 | } else if (io_u->resid) { | |
36167d82 | 722 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 723 | struct fio_file *f = io_u->file; |
36167d82 | 724 | |
9e9d164e JA |
725 | /* |
726 | * zero read, fail | |
727 | */ | |
728 | if (!bytes) { | |
41d9f0fd | 729 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
730 | put_io_u(td, io_u); |
731 | break; | |
732 | } | |
733 | ||
cec6b55d | 734 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 735 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
736 | io_u->offset += bytes; |
737 | ||
ff58fced JA |
738 | if (ddir_rw(io_u->ddir)) |
739 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 740 | |
d460eb31 | 741 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
742 | goto sync_done; |
743 | ||
11786802 JA |
744 | requeue_io_u(td, &io_u); |
745 | } else { | |
5a7c5680 | 746 | sync_done: |
581e7141 JA |
747 | if (__should_check_rate(td, 0) || |
748 | __should_check_rate(td, 1)) | |
993bf48b JA |
749 | fio_gettime(&comp_time, NULL); |
750 | ||
581e7141 JA |
751 | ret = io_u_sync_complete(td, io_u, bytes_done); |
752 | if (ret < 0) | |
753 | break; | |
cec6b55d | 754 | } |
36167d82 JA |
755 | break; |
756 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
757 | /* |
758 | * if the engine doesn't have a commit hook, | |
759 | * the io_u is really queued. if it does have such | |
760 | * a hook, it has to call io_u_queued() itself. | |
761 | */ | |
762 | if (td->io_ops->commit == NULL) | |
763 | io_u_queued(td, io_u); | |
36167d82 | 764 | break; |
755200a3 JA |
765 | case FIO_Q_BUSY: |
766 | requeue_io_u(td, &io_u); | |
5451792e JA |
767 | ret2 = td_io_commit(td); |
768 | if (ret2 < 0) | |
769 | ret = ret2; | |
755200a3 | 770 | break; |
36167d82 JA |
771 | default: |
772 | assert(ret < 0); | |
773 | put_io_u(td, io_u); | |
774 | break; | |
ebac4655 JA |
775 | } |
776 | ||
f2bba182 | 777 | if (break_on_this_error(td, &ret)) |
36167d82 JA |
778 | break; |
779 | ||
97601024 | 780 | /* |
ccc02050 JA |
781 | * See if we need to complete some commands. Note that we |
782 | * can get BUSY even without IO queued, if the system is | |
783 | * resource starved. | |
97601024 | 784 | */ |
ccc02050 | 785 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
4950421a | 786 | if (full || !td->o.iodepth_batch_complete) { |
6a96276c RR |
787 | min_evts = min(td->o.iodepth_batch_complete, |
788 | td->cur_depth); | |
1f84f1d9 | 789 | if (full && !min_evts && td->o.iodepth_batch_complete != 0) |
36167d82 | 790 | min_evts = 1; |
4950421a | 791 | |
581e7141 JA |
792 | if (__should_check_rate(td, 0) || |
793 | __should_check_rate(td, 1)) | |
993bf48b | 794 | fio_gettime(&comp_time, NULL); |
4950421a JA |
795 | |
796 | do { | |
581e7141 JA |
797 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
798 | if (ret < 0) | |
4950421a JA |
799 | break; |
800 | ||
4950421a | 801 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
ebac4655 JA |
802 | } |
803 | ||
4950421a JA |
804 | if (ret < 0) |
805 | break; | |
581e7141 | 806 | if (!(bytes_done[0] + bytes_done[1])) |
97601024 JA |
807 | continue; |
808 | ||
581e7141 JA |
809 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
810 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
721938ae | 811 | if (exitall_on_terminate) |
cc0df00a | 812 | fio_terminate_threads(td->groupid); |
721938ae JA |
813 | td_verror(td, EIO, "check_min_rate"); |
814 | break; | |
815 | } | |
ebac4655 JA |
816 | } |
817 | ||
2dc1bbeb | 818 | if (td->o.thinktime) { |
9c1f7434 JA |
819 | unsigned long long b; |
820 | ||
821 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 822 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
823 | int left; |
824 | ||
2dc1bbeb | 825 | if (td->o.thinktime_spin) |
6dd6f2cd | 826 | usec_spin(td->o.thinktime_spin); |
48097d5c | 827 | |
2dc1bbeb | 828 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
829 | if (left) |
830 | usec_sleep(td, left); | |
831 | } | |
9c1f7434 | 832 | } |
ebac4655 JA |
833 | } |
834 | ||
d708ac5e JA |
835 | if (td->trim_entries) |
836 | printf("trim entries %ld\n", td->trim_entries); | |
a917a8b3 | 837 | |
aa31f1f1 SL |
838 | if (td->o.fill_device && td->error == ENOSPC) { |
839 | td->error = 0; | |
840 | td->terminate = 1; | |
841 | } | |
4d2413c6 | 842 | if (!td->error) { |
3d7c391d JA |
843 | struct fio_file *f; |
844 | ||
c01c0395 | 845 | i = td->cur_depth; |
d06093e7 | 846 | if (i) { |
581e7141 | 847 | ret = io_u_queued_complete(td, i, NULL); |
d06093e7 SL |
848 | if (td->o.fill_device && td->error == ENOSPC) |
849 | td->error = 0; | |
850 | } | |
ebac4655 | 851 | |
2dc1bbeb | 852 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 853 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
854 | |
855 | for_each_file(td, f, i) { | |
d6aed795 | 856 | if (!fio_file_open(f)) |
3d7b485f | 857 | continue; |
858a3d47 | 858 | fio_io_sync(td, f); |
3d7b485f | 859 | } |
84585003 | 860 | } |
c01c0395 JA |
861 | } else |
862 | cleanup_pending_aio(td); | |
2ba1c290 JA |
863 | |
864 | /* | |
865 | * stop job if we failed doing any IO | |
866 | */ | |
867 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
868 | td->done = 1; | |
ebac4655 JA |
869 | } |
870 | ||
ebac4655 JA |
871 | static void cleanup_io_u(struct thread_data *td) |
872 | { | |
01743ee1 | 873 | struct flist_head *entry, *n; |
ebac4655 JA |
874 | struct io_u *io_u; |
875 | ||
01743ee1 JA |
876 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
877 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 878 | |
01743ee1 | 879 | flist_del(&io_u->list); |
91aea6ec | 880 | fio_memfree(io_u, sizeof(*io_u)); |
ebac4655 JA |
881 | } |
882 | ||
2f9ade3c | 883 | free_io_mem(td); |
ebac4655 JA |
884 | } |
885 | ||
886 | static int init_io_u(struct thread_data *td) | |
887 | { | |
888 | struct io_u *io_u; | |
a00735e6 | 889 | unsigned int max_bs; |
eb7ccf38 | 890 | int cl_align, i, max_units; |
ebac4655 JA |
891 | char *p; |
892 | ||
1e3c09af | 893 | max_units = td->o.iodepth; |
2dc1bbeb | 894 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
895 | td->orig_buffer_size = (unsigned long long) max_bs |
896 | * (unsigned long long) max_units; | |
897 | ||
898 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
899 | unsigned long bs; | |
74b025b0 | 900 | |
5ec10eaa JA |
901 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
902 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
903 | } | |
ebac4655 | 904 | |
c3990645 JA |
905 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
906 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
907 | return 1; | |
908 | } | |
909 | ||
2f9ade3c JA |
910 | if (allocate_io_mem(td)) |
911 | return 1; | |
ebac4655 | 912 | |
1c04bf78 JA |
913 | if (td->o.odirect || td->o.mem_align || |
914 | (td->io_ops->flags & FIO_RAWIO)) | |
d529ee19 | 915 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
b3f378e9 JA |
916 | else |
917 | p = td->orig_buffer; | |
918 | ||
eb7ccf38 JA |
919 | cl_align = os_cache_line_size(); |
920 | ||
ebac4655 | 921 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
922 | void *ptr; |
923 | ||
db1cd90b JA |
924 | if (td->terminate) |
925 | return 1; | |
eb7ccf38 | 926 | |
91aea6ec JA |
927 | ptr = fio_memalign(cl_align, sizeof(*io_u)); |
928 | if (!ptr) { | |
929 | log_err("fio: unable to allocate aligned memory\n"); | |
eb7ccf38 JA |
930 | break; |
931 | } | |
932 | ||
933 | io_u = ptr; | |
ebac4655 | 934 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 935 | INIT_FLIST_HEAD(&io_u->list); |
d529ee19 | 936 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
ebac4655 | 937 | |
b4c5e1ac JA |
938 | if (!(td->io_ops->flags & FIO_NOIO)) { |
939 | io_u->buf = p + max_bs * i; | |
d529ee19 | 940 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); |
e9459e5a | 941 | |
3545a109 | 942 | if (td_write(td)) |
5973cafb | 943 | io_u_fill_buffer(td, io_u, max_bs); |
3545a109 | 944 | if (td_write(td) && td->o.verify_pattern_bytes) { |
cbe8d756 RR |
945 | /* |
946 | * Fill the buffer with the pattern if we are | |
947 | * going to be doing writes. | |
948 | */ | |
7d9fb455 | 949 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
cbe8d756 | 950 | } |
b4c5e1ac | 951 | } |
6b9cea23 | 952 | |
b1ff3403 | 953 | io_u->index = i; |
0c6e7517 | 954 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 955 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
956 | } |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
da86774e JA |
961 | static int switch_ioscheduler(struct thread_data *td) |
962 | { | |
963 | char tmp[256], tmp2[128]; | |
964 | FILE *f; | |
965 | int ret; | |
966 | ||
ba0fbe10 | 967 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
968 | return 0; |
969 | ||
da86774e JA |
970 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
971 | ||
972 | f = fopen(tmp, "r+"); | |
973 | if (!f) { | |
cbf5c1d7 | 974 | if (errno == ENOENT) { |
5ec10eaa JA |
975 | log_err("fio: os or kernel doesn't support IO scheduler" |
976 | " switching\n"); | |
cbf5c1d7 JA |
977 | return 0; |
978 | } | |
979 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
980 | return 1; |
981 | } | |
982 | ||
983 | /* | |
984 | * Set io scheduler. | |
985 | */ | |
2dc1bbeb | 986 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 987 | if (ferror(f) || ret != 1) { |
e1161c32 | 988 | td_verror(td, errno, "fwrite"); |
da86774e JA |
989 | fclose(f); |
990 | return 1; | |
991 | } | |
992 | ||
993 | rewind(f); | |
994 | ||
995 | /* | |
996 | * Read back and check that the selected scheduler is now the default. | |
997 | */ | |
998 | ret = fread(tmp, 1, sizeof(tmp), f); | |
999 | if (ferror(f) || ret < 0) { | |
e1161c32 | 1000 | td_verror(td, errno, "fread"); |
da86774e JA |
1001 | fclose(f); |
1002 | return 1; | |
1003 | } | |
1004 | ||
2dc1bbeb | 1005 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 1006 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 1007 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 1008 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
1009 | fclose(f); |
1010 | return 1; | |
1011 | } | |
1012 | ||
1013 | fclose(f); | |
1014 | return 0; | |
1015 | } | |
1016 | ||
492158cf JA |
1017 | static int keep_running(struct thread_data *td) |
1018 | { | |
1019 | unsigned long long io_done; | |
1020 | ||
20e354ef JA |
1021 | if (td->done) |
1022 | return 0; | |
492158cf JA |
1023 | if (td->o.time_based) |
1024 | return 1; | |
1025 | if (td->o.loops) { | |
1026 | td->o.loops--; | |
1027 | return 1; | |
1028 | } | |
1029 | ||
5ec10eaa JA |
1030 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
1031 | + td->io_skip_bytes; | |
492158cf JA |
1032 | if (io_done < td->o.size) |
1033 | return 1; | |
1034 | ||
1035 | return 0; | |
1036 | } | |
1037 | ||
b29ee5b3 | 1038 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 1039 | { |
f0505a14 | 1040 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
ebac4655 | 1041 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
c8eeb9df JA |
1042 | td->stat_io_blocks[0] = td->stat_io_blocks[1] = 0; |
1043 | td->this_io_blocks[0] = td->this_io_blocks[1] = 0; | |
20dc95c4 | 1044 | td->zone_bytes = 0; |
581e7141 JA |
1045 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
1046 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
ebac4655 | 1047 | |
c1324df1 JA |
1048 | td->last_was_sync = 0; |
1049 | ||
2ba1c290 JA |
1050 | /* |
1051 | * reset file done count if we are to start over | |
1052 | */ | |
1053 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 1054 | td->nr_done_files = 0; |
b29ee5b3 JA |
1055 | } |
1056 | ||
1057 | void reset_all_stats(struct thread_data *td) | |
1058 | { | |
1059 | struct timeval tv; | |
1060 | int i; | |
1061 | ||
1062 | reset_io_counters(td); | |
1063 | ||
1064 | for (i = 0; i < 2; i++) { | |
1065 | td->io_bytes[i] = 0; | |
1066 | td->io_blocks[i] = 0; | |
1067 | td->io_issues[i] = 0; | |
1068 | td->ts.total_io_u[i] = 0; | |
1069 | } | |
9b836561 | 1070 | |
b29ee5b3 | 1071 | fio_gettime(&tv, NULL); |
cda99fa0 SSP |
1072 | td->ts.runtime[0] = 0; |
1073 | td->ts.runtime[1] = 0; | |
b29ee5b3 JA |
1074 | memcpy(&td->epoch, &tv, sizeof(tv)); |
1075 | memcpy(&td->start, &tv, sizeof(tv)); | |
1076 | } | |
1077 | ||
df9c26b1 | 1078 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
1079 | { |
1080 | struct fio_file *f; | |
1081 | unsigned int i; | |
b29ee5b3 JA |
1082 | |
1083 | reset_io_counters(td); | |
281f9b63 | 1084 | |
24ffd2c2 | 1085 | close_files(td); |
df9c26b1 | 1086 | for_each_file(td, f, i) |
d6aed795 | 1087 | fio_file_clear_done(f); |
f0153948 JA |
1088 | |
1089 | /* | |
1090 | * Set the same seed to get repeatable runs | |
1091 | */ | |
1092 | td_fill_rand_seeds(td); | |
ebac4655 JA |
1093 | } |
1094 | ||
398e8c4d JA |
1095 | static int exec_string(const char *string) |
1096 | { | |
1097 | int ret, newlen = strlen(string) + 1 + 8; | |
1098 | char *str; | |
1099 | ||
1100 | str = malloc(newlen); | |
1101 | sprintf(str, "sh -c %s", string); | |
1102 | ||
1103 | ret = system(str); | |
1104 | if (ret == -1) | |
1105 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1106 | ||
1107 | free(str); | |
1108 | return ret; | |
1109 | } | |
1110 | ||
906c8d75 JA |
1111 | /* |
1112 | * Entry point for the thread based jobs. The process based jobs end up | |
1113 | * here as well, after a little setup. | |
1114 | */ | |
ebac4655 JA |
1115 | static void *thread_main(void *data) |
1116 | { | |
cda99fa0 | 1117 | unsigned long long elapsed; |
ebac4655 | 1118 | struct thread_data *td = data; |
e8462bd8 | 1119 | pthread_condattr_t attr; |
a978ba68 | 1120 | int clear_state; |
ebac4655 | 1121 | |
47f767c1 | 1122 | if (!td->o.use_thread) { |
ebac4655 | 1123 | setsid(); |
47f767c1 JA |
1124 | td->pid = getpid(); |
1125 | } else | |
1126 | td->pid = gettid(); | |
ebac4655 | 1127 | |
5921e80c | 1128 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 1129 | |
01743ee1 JA |
1130 | INIT_FLIST_HEAD(&td->io_u_freelist); |
1131 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
1132 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
1133 | INIT_FLIST_HEAD(&td->io_log_list); | |
1134 | INIT_FLIST_HEAD(&td->io_hist_list); | |
e8462bd8 | 1135 | INIT_FLIST_HEAD(&td->verify_list); |
0d29de83 | 1136 | INIT_FLIST_HEAD(&td->trim_list); |
e8462bd8 | 1137 | pthread_mutex_init(&td->io_u_lock, NULL); |
bb5d7d0b | 1138 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 1139 | |
e8462bd8 JA |
1140 | pthread_condattr_init(&attr); |
1141 | pthread_cond_init(&td->verify_cond, &attr); | |
1142 | pthread_cond_init(&td->free_cond, &attr); | |
1143 | ||
db1cd90b | 1144 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 1145 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 1146 | fio_mutex_up(startup_mutex); |
29adda3c | 1147 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 1148 | fio_mutex_down(td->mutex); |
29adda3c | 1149 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
1150 | |
1151 | /* | |
cdd18ad8 | 1152 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
1153 | * eating a file descriptor |
1154 | */ | |
cdd18ad8 | 1155 | fio_mutex_remove(td->mutex); |
db1cd90b | 1156 | |
dfc6e751 SH |
1157 | /* |
1158 | * A new gid requires privilege, so we need to do this before setting | |
1159 | * the uid. | |
1160 | */ | |
e0b0d892 JA |
1161 | if (td->o.gid != -1U && setgid(td->o.gid)) { |
1162 | td_verror(td, errno, "setgid"); | |
1163 | goto err; | |
1164 | } | |
dfc6e751 SH |
1165 | if (td->o.uid != -1U && setuid(td->o.uid)) { |
1166 | td_verror(td, errno, "setuid"); | |
1167 | goto err; | |
1168 | } | |
e0b0d892 | 1169 | |
be18a94f JA |
1170 | /* |
1171 | * If we have a gettimeofday() thread, make sure we exclude that | |
1172 | * thread from this job | |
1173 | */ | |
1174 | if (td->o.gtod_cpu) | |
1175 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); | |
1176 | ||
1177 | /* | |
1178 | * Set affinity first, in case it has an impact on the memory | |
1179 | * allocations. | |
1180 | */ | |
1181 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { | |
1182 | td_verror(td, errno, "cpu_set_affinity"); | |
1183 | goto err; | |
1184 | } | |
1185 | ||
d84f8d49 JA |
1186 | /* |
1187 | * May alter parameters that init_io_u() will use, so we need to | |
1188 | * do this first. | |
1189 | */ | |
1190 | if (init_iolog(td)) | |
1191 | goto err; | |
1192 | ||
ebac4655 | 1193 | if (init_io_u(td)) |
db1cd90b | 1194 | goto err; |
ebac4655 | 1195 | |
e8462bd8 JA |
1196 | if (td->o.verify_async && verify_async_init(td)) |
1197 | goto err; | |
1198 | ||
ac684785 | 1199 | if (td->ioprio_set) { |
ebac4655 | 1200 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1201 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1202 | goto err; |
ebac4655 JA |
1203 | } |
1204 | } | |
1205 | ||
6adb38a1 | 1206 | if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
a696fa2a JA |
1207 | goto err; |
1208 | ||
2dc1bbeb | 1209 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1210 | td_verror(td, errno, "nice"); |
db1cd90b | 1211 | goto err; |
b6f4d880 JA |
1212 | } |
1213 | ||
2dc1bbeb | 1214 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1215 | goto err; |
37f56873 | 1216 | |
2dc1bbeb | 1217 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1218 | goto err; |
1219 | ||
7d6c5283 JA |
1220 | if (td_io_init(td)) |
1221 | goto err; | |
1222 | ||
68727076 JA |
1223 | if (init_random_map(td)) |
1224 | goto err; | |
1225 | ||
2dc1bbeb | 1226 | if (td->o.exec_prerun) { |
398e8c4d | 1227 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1228 | goto err; |
1229 | } | |
4e0ba8af | 1230 | |
afad68f7 ZY |
1231 | if (td->o.pre_read) { |
1232 | if (pre_read_files(td) < 0) | |
1233 | goto err; | |
1234 | } | |
1235 | ||
69008999 | 1236 | fio_gettime(&td->epoch, NULL); |
c8aaba19 | 1237 | getrusage(RUSAGE_SELF, &td->ru_start); |
69008999 | 1238 | |
a978ba68 | 1239 | clear_state = 0; |
492158cf | 1240 | while (keep_running(td)) { |
02bcaa8c | 1241 | fio_gettime(&td->start, NULL); |
c8eeb9df JA |
1242 | memcpy(&td->bw_sample_time, &td->start, sizeof(td->start)); |
1243 | memcpy(&td->iops_sample_time, &td->start, sizeof(td->start)); | |
993bf48b | 1244 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1245 | |
cf2dd8d6 | 1246 | if (td->o.ratemin[0] || td->o.ratemin[1]) |
c8eeb9df | 1247 | memcpy(&td->lastrate, &td->bw_sample_time, |
5ec10eaa | 1248 | sizeof(td->lastrate)); |
ebac4655 | 1249 | |
df9c26b1 JA |
1250 | if (clear_state) |
1251 | clear_io_state(td); | |
a978ba68 | 1252 | |
ebac4655 JA |
1253 | prune_io_piece_log(td); |
1254 | ||
ba0fbe10 | 1255 | do_io(td); |
ebac4655 | 1256 | |
a978ba68 JA |
1257 | clear_state = 1; |
1258 | ||
38d77cae | 1259 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
0a4957c6 | 1260 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1261 | td->ts.runtime[DDIR_READ] += elapsed; |
38d77cae JA |
1262 | } |
1263 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
0a4957c6 | 1264 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1265 | td->ts.runtime[DDIR_WRITE] += elapsed; |
38d77cae | 1266 | } |
5ec10eaa | 1267 | |
ebac4655 JA |
1268 | if (td->error || td->terminate) |
1269 | break; | |
1270 | ||
e84c73a8 SL |
1271 | if (!td->o.do_verify || |
1272 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1273 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1274 | continue; |
1275 | ||
df9c26b1 | 1276 | clear_io_state(td); |
a978ba68 | 1277 | |
02bcaa8c | 1278 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1279 | |
1280 | do_verify(td); | |
1281 | ||
cda99fa0 | 1282 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1283 | |
1284 | if (td->error || td->terminate) | |
1285 | break; | |
1286 | } | |
1287 | ||
36dff966 | 1288 | update_rusage_stat(td); |
cda99fa0 SSP |
1289 | td->ts.runtime[0] = (td->ts.runtime[0] + 999) / 1000; |
1290 | td->ts.runtime[1] = (td->ts.runtime[1] + 999) / 1000; | |
756867bd JA |
1291 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1292 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1293 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1294 | ||
d2bbb8d9 | 1295 | fio_mutex_down(writeout_mutex); |
7b9f733a | 1296 | if (td->bw_log) { |
f484470b | 1297 | if (td->o.bw_log_file) { |
7b9f733a | 1298 | finish_log_named(td, td->bw_log, |
f484470b JA |
1299 | td->o.bw_log_file, "bw"); |
1300 | } else | |
7b9f733a | 1301 | finish_log(td, td->bw_log, "bw"); |
e3cedca7 | 1302 | } |
7b9f733a | 1303 | if (td->lat_log) { |
02af0988 | 1304 | if (td->o.lat_log_file) { |
7b9f733a | 1305 | finish_log_named(td, td->lat_log, |
02af0988 JA |
1306 | td->o.lat_log_file, "lat"); |
1307 | } else | |
7b9f733a | 1308 | finish_log(td, td->lat_log, "lat"); |
02af0988 | 1309 | } |
7b9f733a | 1310 | if (td->slat_log) { |
f484470b | 1311 | if (td->o.lat_log_file) { |
7b9f733a | 1312 | finish_log_named(td, td->slat_log, |
1ca95738 | 1313 | td->o.lat_log_file, "slat"); |
f484470b | 1314 | } else |
7b9f733a | 1315 | finish_log(td, td->slat_log, "slat"); |
e3cedca7 | 1316 | } |
7b9f733a | 1317 | if (td->clat_log) { |
f484470b | 1318 | if (td->o.lat_log_file) { |
7b9f733a | 1319 | finish_log_named(td, td->clat_log, |
f484470b JA |
1320 | td->o.lat_log_file, "clat"); |
1321 | } else | |
7b9f733a | 1322 | finish_log(td, td->clat_log, "clat"); |
e3cedca7 | 1323 | } |
c8eeb9df JA |
1324 | if (td->iops_log) { |
1325 | if (td->o.iops_log_file) { | |
1326 | finish_log_named(td, td->iops_log, | |
1327 | td->o.iops_log_file, "iops"); | |
1328 | } else | |
1329 | finish_log(td, td->iops_log, "iops"); | |
1330 | } | |
1331 | ||
d2bbb8d9 | 1332 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1333 | if (td->o.exec_postrun) |
1334 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1335 | |
1336 | if (exitall_on_terminate) | |
cc0df00a | 1337 | fio_terminate_threads(td->groupid); |
ebac4655 JA |
1338 | |
1339 | err: | |
5bf13a5a | 1340 | if (td->error) |
4ceb30d4 | 1341 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1342 | td->verror); |
b4707ed7 JA |
1343 | |
1344 | if (td->o.verify_async) | |
1345 | verify_async_exit(td); | |
1346 | ||
24ffd2c2 | 1347 | close_and_free_files(td); |
2866c82d | 1348 | close_ioengine(td); |
ebac4655 | 1349 | cleanup_io_u(td); |
6adb38a1 | 1350 | cgroup_shutdown(td, &cgroup_mnt); |
f29b25a3 | 1351 | |
d2ce18b5 JA |
1352 | if (td->o.cpumask_set) { |
1353 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1354 | ||
1355 | td_verror(td, ret, "fio_cpuset_exit"); | |
1356 | } | |
4e78e405 | 1357 | |
f29b25a3 JA |
1358 | /* |
1359 | * do this very late, it will log file closing as well | |
1360 | */ | |
1361 | if (td->o.write_iolog_file) | |
1362 | write_iolog_close(td); | |
1363 | ||
ebac4655 | 1364 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1365 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1366 | } |
1367 | ||
906c8d75 JA |
1368 | /* |
1369 | * We cannot pass the td data into a forked process, so attach the td and | |
1370 | * pass it to the thread worker. | |
1371 | */ | |
a6418147 | 1372 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1373 | { |
1374 | struct thread_data *td; | |
a6418147 | 1375 | void *data, *ret; |
ebac4655 | 1376 | |
65258961 | 1377 | #ifndef __hpux |
ebac4655 JA |
1378 | data = shmat(shmid, NULL, 0); |
1379 | if (data == (void *) -1) { | |
a6418147 JA |
1380 | int __err = errno; |
1381 | ||
ebac4655 | 1382 | perror("shmat"); |
a6418147 | 1383 | return __err; |
ebac4655 | 1384 | } |
65258961 JA |
1385 | #else |
1386 | /* | |
1387 | * HP-UX inherits shm mappings? | |
1388 | */ | |
1389 | data = threads; | |
1390 | #endif | |
ebac4655 JA |
1391 | |
1392 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1393 | ret = thread_main(td); |
ebac4655 | 1394 | shmdt(data); |
43d76807 | 1395 | return (int) (unsigned long) ret; |
ebac4655 JA |
1396 | } |
1397 | ||
906c8d75 JA |
1398 | /* |
1399 | * Run over the job map and reap the threads that have exited, if any. | |
1400 | */ | |
ebac4655 JA |
1401 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1402 | { | |
34572e28 | 1403 | struct thread_data *td; |
1f809d15 | 1404 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1405 | |
1406 | /* | |
1407 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1408 | */ | |
1f809d15 | 1409 | realthreads = pending = cputhreads = 0; |
34572e28 | 1410 | for_each_td(td, i) { |
3707f45b | 1411 | int flags = 0; |
a2f77c9f | 1412 | |
84585003 JA |
1413 | /* |
1414 | * ->io_ops is NULL for a thread that has closed its | |
1415 | * io engine | |
1416 | */ | |
ba0fbe10 | 1417 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1418 | cputhreads++; |
1f809d15 JA |
1419 | else |
1420 | realthreads++; | |
b990b5c0 | 1421 | |
a1dedc1f AC |
1422 | if (!td->pid) { |
1423 | pending++; | |
1424 | continue; | |
1425 | } | |
1426 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1427 | continue; |
2dc1bbeb | 1428 | if (td->o.use_thread) { |
3707f45b JA |
1429 | if (td->runstate == TD_EXITED) { |
1430 | td_set_runstate(td, TD_REAPED); | |
1431 | goto reaped; | |
1432 | } | |
1433 | continue; | |
1434 | } | |
a2f77c9f JA |
1435 | |
1436 | flags = WNOHANG; | |
1437 | if (td->runstate == TD_EXITED) | |
1438 | flags = 0; | |
1439 | ||
1440 | /* | |
1441 | * check if someone quit or got killed in an unusual way | |
1442 | */ | |
1443 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1444 | if (ret < 0) { |
a2f77c9f | 1445 | if (errno == ECHILD) { |
5921e80c JA |
1446 | log_err("fio: pid=%d disappeared %d\n", |
1447 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1448 | td_set_runstate(td, TD_REAPED); |
1449 | goto reaped; | |
1450 | } | |
1451 | perror("waitpid"); | |
1452 | } else if (ret == td->pid) { | |
1453 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1454 | int sig = WTERMSIG(status); |
1455 | ||
03e20d68 | 1456 | if (sig != SIGTERM) |
5ec10eaa | 1457 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1458 | (int) td->pid, sig); |
fab6aa71 JA |
1459 | td_set_runstate(td, TD_REAPED); |
1460 | goto reaped; | |
1461 | } | |
a2f77c9f JA |
1462 | if (WIFEXITED(status)) { |
1463 | if (WEXITSTATUS(status) && !td->error) | |
1464 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1465 | |
a2f77c9f JA |
1466 | td_set_runstate(td, TD_REAPED); |
1467 | goto reaped; | |
a6418147 JA |
1468 | } |
1469 | } | |
ebac4655 | 1470 | |
a2f77c9f JA |
1471 | /* |
1472 | * thread is not dead, continue | |
1473 | */ | |
e48676ba | 1474 | pending++; |
a2f77c9f | 1475 | continue; |
fab6aa71 | 1476 | reaped: |
ebac4655 | 1477 | (*nr_running)--; |
581e7141 JA |
1478 | (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); |
1479 | (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); | |
6f88bcb0 JA |
1480 | if (!td->pid) |
1481 | pending--; | |
a2f77c9f JA |
1482 | |
1483 | if (td->error) | |
1484 | exit_value++; | |
d3eeeabc JA |
1485 | |
1486 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1487 | } |
b990b5c0 | 1488 | |
1f809d15 | 1489 | if (*nr_running == cputhreads && !pending && realthreads) |
cc0df00a | 1490 | fio_terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1491 | } |
1492 | ||
be4ecfdf JA |
1493 | static void *gtod_thread_main(void *data) |
1494 | { | |
1495 | fio_mutex_up(startup_mutex); | |
1496 | ||
1497 | /* | |
1498 | * As long as we have jobs around, update the clock. It would be nice | |
1499 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1500 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1501 | * it - we don't want to lose precision. | |
1502 | */ | |
1503 | while (threads) { | |
1504 | fio_gtod_update(); | |
1505 | nop; | |
1506 | } | |
1507 | ||
1508 | return NULL; | |
1509 | } | |
1510 | ||
1511 | static int fio_start_gtod_thread(void) | |
1512 | { | |
304a47c7 | 1513 | pthread_attr_t attr; |
f42c153d JA |
1514 | int ret; |
1515 | ||
304a47c7 VA |
1516 | pthread_attr_init(&attr); |
1517 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
1518 | ret = pthread_create(>od_thread, &attr, gtod_thread_main, NULL); | |
1519 | pthread_attr_destroy(&attr); | |
f42c153d JA |
1520 | if (ret) { |
1521 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1522 | return 1; |
1523 | } | |
f42c153d JA |
1524 | |
1525 | ret = pthread_detach(gtod_thread); | |
1526 | if (ret) { | |
1527 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1528 | return 1; |
1529 | } | |
1530 | ||
29adda3c | 1531 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1532 | fio_mutex_down(startup_mutex); |
29adda3c | 1533 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1534 | return 0; |
1535 | } | |
1536 | ||
906c8d75 JA |
1537 | /* |
1538 | * Main function for kicking off and reaping jobs, as needed. | |
1539 | */ | |
ebac4655 JA |
1540 | static void run_threads(void) |
1541 | { | |
ebac4655 JA |
1542 | struct thread_data *td; |
1543 | unsigned long spent; | |
1544 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1545 | |
2f9ade3c JA |
1546 | if (fio_pin_memory()) |
1547 | return; | |
ebac4655 | 1548 | |
be4ecfdf JA |
1549 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1550 | return; | |
1551 | ||
cc0df00a JA |
1552 | set_sig_handlers(); |
1553 | ||
c6ae0a5b | 1554 | if (!terse_output) { |
4ceb30d4 | 1555 | log_info("Starting "); |
9cedf167 | 1556 | if (nr_thread) |
4ceb30d4 | 1557 | log_info("%d thread%s", nr_thread, |
5ec10eaa | 1558 | nr_thread > 1 ? "s" : ""); |
9cedf167 JA |
1559 | if (nr_process) { |
1560 | if (nr_thread) | |
1561 | printf(" and "); | |
4ceb30d4 | 1562 | log_info("%d process%s", nr_process, |
5ec10eaa | 1563 | nr_process > 1 ? "es" : ""); |
9cedf167 | 1564 | } |
4ceb30d4 | 1565 | log_info("\n"); |
c6ae0a5b JA |
1566 | fflush(stdout); |
1567 | } | |
c04f7ec3 | 1568 | |
ebac4655 JA |
1569 | todo = thread_number; |
1570 | nr_running = 0; | |
1571 | nr_started = 0; | |
1572 | m_rate = t_rate = 0; | |
1573 | ||
34572e28 | 1574 | for_each_td(td, i) { |
263e529f | 1575 | print_status_init(td->thread_number - 1); |
ebac4655 | 1576 | |
067430bb | 1577 | if (!td->o.create_serialize) |
ebac4655 JA |
1578 | continue; |
1579 | ||
1580 | /* | |
1581 | * do file setup here so it happens sequentially, | |
1582 | * we don't want X number of threads getting their | |
1583 | * client data interspersed on disk | |
1584 | */ | |
53cdc686 | 1585 | if (setup_files(td)) { |
5bf13a5a JA |
1586 | exit_value++; |
1587 | if (td->error) | |
5921e80c JA |
1588 | log_err("fio: pid=%d, err=%d/%s\n", |
1589 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1590 | td_set_runstate(td, TD_REAPED); |
1591 | todo--; | |
c69e8875 JA |
1592 | } else { |
1593 | struct fio_file *f; | |
2b13e716 | 1594 | unsigned int j; |
c69e8875 JA |
1595 | |
1596 | /* | |
1597 | * for sharing to work, each job must always open | |
1598 | * its own files. so close them, if we opened them | |
1599 | * for creation | |
1600 | */ | |
2b13e716 | 1601 | for_each_file(td, f, j) { |
22a57ba8 JA |
1602 | if (fio_file_open(f)) |
1603 | td_io_close_file(td, f); | |
22a57ba8 | 1604 | } |
5ec10eaa | 1605 | } |
ebac4655 JA |
1606 | } |
1607 | ||
a2f77c9f JA |
1608 | set_genesis_time(); |
1609 | ||
ebac4655 | 1610 | while (todo) { |
fca70358 | 1611 | struct thread_data *map[REAL_MAX_JOBS]; |
75154845 JA |
1612 | struct timeval this_start; |
1613 | int this_jobs = 0, left; | |
1614 | ||
ebac4655 JA |
1615 | /* |
1616 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1617 | */ | |
34572e28 | 1618 | for_each_td(td, i) { |
ebac4655 JA |
1619 | if (td->runstate != TD_NOT_CREATED) |
1620 | continue; | |
1621 | ||
1622 | /* | |
1623 | * never got a chance to start, killed by other | |
1624 | * thread for some reason | |
1625 | */ | |
1626 | if (td->terminate) { | |
1627 | todo--; | |
1628 | continue; | |
1629 | } | |
1630 | ||
2dc1bbeb | 1631 | if (td->o.start_delay) { |
263e529f | 1632 | spent = mtime_since_genesis(); |
ebac4655 | 1633 | |
2dc1bbeb | 1634 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1635 | continue; |
1636 | } | |
1637 | ||
6f88bcb0 JA |
1638 | if (td->o.stonewall && (nr_started || nr_running)) { |
1639 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1640 | td->o.name); | |
ebac4655 | 1641 | break; |
6f88bcb0 | 1642 | } |
ebac4655 | 1643 | |
067430bb JA |
1644 | init_disk_util(td); |
1645 | ||
75154845 JA |
1646 | /* |
1647 | * Set state to created. Thread will transition | |
1648 | * to TD_INITIALIZED when it's done setting up. | |
1649 | */ | |
ebac4655 | 1650 | td_set_runstate(td, TD_CREATED); |
75154845 | 1651 | map[this_jobs++] = td; |
ebac4655 JA |
1652 | nr_started++; |
1653 | ||
2dc1bbeb | 1654 | if (td->o.use_thread) { |
f42c153d JA |
1655 | int ret; |
1656 | ||
ee56ad50 | 1657 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1658 | ret = pthread_create(&td->thread, NULL, |
1659 | thread_main, td); | |
1660 | if (ret) { | |
1661 | log_err("pthread_create: %s\n", | |
1662 | strerror(ret)); | |
ebac4655 | 1663 | nr_started--; |
c8bb6faf | 1664 | break; |
ebac4655 | 1665 | } |
f42c153d JA |
1666 | ret = pthread_detach(td->thread); |
1667 | if (ret) | |
1668 | log_err("pthread_detach: %s", | |
1669 | strerror(ret)); | |
ebac4655 | 1670 | } else { |
5e1d306e | 1671 | pid_t pid; |
ee56ad50 | 1672 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1673 | pid = fork(); |
1674 | if (!pid) { | |
a6418147 JA |
1675 | int ret = fork_main(shm_id, i); |
1676 | ||
5e1d306e JA |
1677 | _exit(ret); |
1678 | } else if (i == fio_debug_jobno) | |
1679 | *fio_debug_jobp = pid; | |
ebac4655 | 1680 | } |
29adda3c | 1681 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
656b1393 JA |
1682 | if (fio_mutex_down_timeout(startup_mutex, 10)) { |
1683 | log_err("fio: job startup hung? exiting.\n"); | |
cc0df00a | 1684 | fio_terminate_threads(TERMINATE_ALL); |
656b1393 JA |
1685 | fio_abort = 1; |
1686 | nr_started--; | |
1687 | break; | |
1688 | } | |
29adda3c | 1689 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1690 | } |
1691 | ||
1692 | /* | |
75154845 JA |
1693 | * Wait for the started threads to transition to |
1694 | * TD_INITIALIZED. | |
ebac4655 | 1695 | */ |
02bcaa8c | 1696 | fio_gettime(&this_start, NULL); |
75154845 | 1697 | left = this_jobs; |
6ce15a32 | 1698 | while (left && !fio_abort) { |
75154845 JA |
1699 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1700 | break; | |
1701 | ||
1702 | usleep(100000); | |
1703 | ||
1704 | for (i = 0; i < this_jobs; i++) { | |
1705 | td = map[i]; | |
1706 | if (!td) | |
1707 | continue; | |
b6f4d880 | 1708 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1709 | map[i] = NULL; |
1710 | left--; | |
b6f4d880 JA |
1711 | } else if (td->runstate >= TD_EXITED) { |
1712 | map[i] = NULL; | |
1713 | left--; | |
1714 | todo--; | |
1715 | nr_running++; /* work-around... */ | |
75154845 JA |
1716 | } |
1717 | } | |
1718 | } | |
1719 | ||
1720 | if (left) { | |
3b70d7e5 | 1721 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1722 | for (i = 0; i < this_jobs; i++) { |
1723 | td = map[i]; | |
1724 | if (!td) | |
1725 | continue; | |
1726 | kill(td->pid, SIGTERM); | |
1727 | } | |
1728 | break; | |
1729 | } | |
1730 | ||
1731 | /* | |
b6f4d880 | 1732 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1733 | */ |
34572e28 | 1734 | for_each_td(td, i) { |
75154845 | 1735 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1736 | continue; |
1737 | ||
b29ee5b3 JA |
1738 | if (in_ramp_time(td)) |
1739 | td_set_runstate(td, TD_RAMP); | |
1740 | else | |
1741 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1742 | nr_running++; |
1743 | nr_started--; | |
581e7141 JA |
1744 | m_rate += td->o.ratemin[0] + td->o.ratemin[1]; |
1745 | t_rate += td->o.rate[0] + td->o.rate[1]; | |
75154845 | 1746 | todo--; |
cdd18ad8 | 1747 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1748 | } |
1749 | ||
1750 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1751 | ||
602d6ff9 JA |
1752 | if (todo) { |
1753 | if (is_backend) | |
1754 | fio_server_idle_loop(); | |
1755 | else | |
1756 | usleep(100000); | |
1757 | } | |
ebac4655 JA |
1758 | } |
1759 | ||
1760 | while (nr_running) { | |
1761 | reap_threads(&nr_running, &t_rate, &m_rate); | |
cc0df00a JA |
1762 | |
1763 | if (is_backend) | |
1764 | fio_server_idle_loop(); | |
70e0c316 JA |
1765 | else |
1766 | usleep(10000); | |
ebac4655 JA |
1767 | } |
1768 | ||
1769 | update_io_ticks(); | |
2f9ade3c | 1770 | fio_unpin_memory(); |
ebac4655 JA |
1771 | } |
1772 | ||
50d16976 | 1773 | int exec_run(void) |
ebac4655 | 1774 | { |
7e356b2d JA |
1775 | struct thread_data *td; |
1776 | int i; | |
1777 | ||
a37f69b7 | 1778 | if (nr_clients) |
37db14fe | 1779 | return fio_handle_clients(); |
7e356b2d JA |
1780 | if (exec_profile) { |
1781 | if (load_profile(exec_profile)) | |
1782 | return 1; | |
1783 | free(exec_profile); | |
1784 | exec_profile = NULL; | |
1785 | } | |
74929ac2 JA |
1786 | if (!thread_number) |
1787 | return 0; | |
1788 | ||
bb3884d8 JA |
1789 | if (write_bw_log) { |
1790 | setup_log(&agg_io_log[DDIR_READ]); | |
1791 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1792 | } | |
1793 | ||
cdd18ad8 | 1794 | startup_mutex = fio_mutex_init(0); |
03e20d68 BC |
1795 | if (startup_mutex == NULL) |
1796 | return 1; | |
d2bbb8d9 | 1797 | writeout_mutex = fio_mutex_init(1); |
03e20d68 BC |
1798 | if (writeout_mutex == NULL) |
1799 | return 1; | |
07739b57 | 1800 | |
a2f77c9f | 1801 | set_genesis_time(); |
7985701b | 1802 | create_disk_util_thread(); |
ebac4655 | 1803 | |
dae5341c JA |
1804 | cgroup_list = smalloc(sizeof(*cgroup_list)); |
1805 | INIT_FLIST_HEAD(cgroup_list); | |
1806 | ||
ebac4655 | 1807 | run_threads(); |
6ce15a32 | 1808 | |
bb3884d8 | 1809 | if (!fio_abort) { |
6ce15a32 | 1810 | show_run_stats(); |
bb3884d8 | 1811 | if (write_bw_log) { |
5ec10eaa JA |
1812 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1813 | __finish_log(agg_io_log[DDIR_WRITE], | |
1814 | "agg-write_bw.log"); | |
bb3884d8 JA |
1815 | } |
1816 | } | |
ebac4655 | 1817 | |
7e356b2d JA |
1818 | for_each_td(td, i) |
1819 | fio_options_free(td); | |
1820 | ||
dae5341c JA |
1821 | cgroup_kill(cgroup_list); |
1822 | sfree(cgroup_list); | |
61eb313e | 1823 | sfree(cgroup_mnt); |
39f22027 | 1824 | |
cdd18ad8 | 1825 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1826 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1827 | return exit_value; |
ebac4655 | 1828 | } |
50d16976 JA |
1829 | |
1830 | void reset_fio_state(void) | |
1831 | { | |
1832 | groupid = 0; | |
1833 | thread_number = 0; | |
1834 | nr_process = 0; | |
1835 | nr_thread = 0; | |
1836 | done_secs = 0; | |
1837 | } | |
1838 | ||
0ad5edcc JA |
1839 | static int endian_check(void) |
1840 | { | |
1841 | union { | |
1842 | uint8_t c[8]; | |
1843 | uint64_t v; | |
1844 | } u; | |
1845 | int le = 0, be = 0; | |
1846 | ||
1847 | u.v = 0x12; | |
1848 | if (u.c[7] == 0x12) | |
1849 | be = 1; | |
1850 | else if (u.c[0] == 0x12) | |
1851 | le = 1; | |
1852 | ||
1853 | #if defined(FIO_LITTLE_ENDIAN) | |
1854 | if (be) | |
1855 | return 1; | |
1856 | #elif defined(FIO_BIG_ENDIAN) | |
1857 | if (le) | |
1858 | return 1; | |
1859 | #else | |
1860 | return 1; | |
1861 | #endif | |
1862 | ||
1863 | if (!le && !be) | |
1864 | return 1; | |
1865 | ||
1866 | return 0; | |
1867 | } | |
1868 | ||
50d16976 JA |
1869 | int main(int argc, char *argv[], char *envp[]) |
1870 | { | |
1871 | long ps; | |
1872 | ||
0ad5edcc JA |
1873 | if (endian_check()) { |
1874 | log_err("fio: endianness settings appear wrong.\n"); | |
1875 | log_err("fio: please report this to fio@vger.kernel.org\n"); | |
1876 | return 1; | |
1877 | } | |
1878 | ||
50d16976 JA |
1879 | arch_init(envp); |
1880 | ||
1881 | sinit(); | |
1882 | ||
1883 | /* | |
1884 | * We need locale for number printing, if it isn't set then just | |
1885 | * go with the US format. | |
1886 | */ | |
1887 | if (!getenv("LC_NUMERIC")) | |
1888 | setlocale(LC_NUMERIC, "en_US"); | |
1889 | ||
1890 | ps = sysconf(_SC_PAGESIZE); | |
1891 | if (ps < 0) { | |
1892 | log_err("Failed to get page size\n"); | |
1893 | return 1; | |
1894 | } | |
1895 | ||
1896 | page_size = ps; | |
1897 | page_mask = ps - 1; | |
1898 | ||
1899 | fio_keywords_init(); | |
1900 | ||
1901 | if (parse_options(argc, argv)) | |
1902 | return 1; | |
1903 | ||
1904 | return exec_run(); | |
1905 | } |