Commit | Line | Data |
---|---|---|
abe4da87 JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
892199bd JA |
21 | #include <stdio.h> |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
24 | #include <fcntl.h> | |
25 | #include <string.h> | |
26 | #include <errno.h> | |
27 | #include <signal.h> | |
28 | #include <time.h> | |
7dd1389e | 29 | #include <ctype.h> |
18e0b78c | 30 | #include <sched.h> |
43000118 | 31 | #include <libaio.h> |
e128065d | 32 | #include <math.h> |
02983297 | 33 | #include <limits.h> |
892199bd JA |
34 | #include <sys/time.h> |
35 | #include <sys/types.h> | |
36 | #include <sys/stat.h> | |
37 | #include <sys/wait.h> | |
38 | #include <semaphore.h> | |
39 | #include <sys/ipc.h> | |
40 | #include <sys/shm.h> | |
41 | #include <asm/unistd.h> | |
42 | ||
4240cfa1 JA |
43 | #define MAX_JOBS (1024) |
44 | ||
892199bd JA |
45 | /* |
46 | * assume we don't have _get either, if _set isn't defined | |
47 | */ | |
48 | #ifndef __NR_ioprio_set | |
892199bd JA |
49 | #if defined(__i386__) |
50 | #define __NR_ioprio_set 289 | |
51 | #define __NR_ioprio_get 290 | |
52 | #elif defined(__powerpc__) || defined(__powerpc64__) | |
53 | #define __NR_ioprio_set 273 | |
54 | #define __NR_ioprio_get 274 | |
55 | #elif defined(__x86_64__) | |
56 | #define __NR_ioprio_set 251 | |
57 | #define __NR_ioprio_get 252 | |
58 | #elif defined(__ia64__) | |
59 | #define __NR_ioprio_set 1274 | |
60 | #define __NR_ioprio_get 1275 | |
61 | #elif defined(__alpha__) | |
62 | #define __NR_ioprio_set 442 | |
63 | #define __NR_ioprio_get 443 | |
64 | #elif defined(__s390x__) || defined(__s390__) | |
65 | #define __NR_ioprio_set 282 | |
66 | #define __NR_ioprio_get 283 | |
67 | #else | |
68 | #error "Unsupported arch" | |
69 | #endif | |
b95799ca | 70 | #endif |
892199bd | 71 | |
b95799ca JA |
72 | #ifndef __NR_fadvise64 |
73 | #if defined(__i386__) | |
74 | #define __NR_fadvise64 250 | |
75 | #elif defined(__powerpc__) || defined(__powerpc64__) | |
76 | #define __NR_fadvise64 233 | |
77 | #elif defined(__x86_64__) | |
78 | #define __NR_fadvise64 221 | |
79 | #elif defined(__ia64__) | |
80 | #define __NR_fadvise64 1234 | |
81 | #elif defined(__alpha__) | |
82 | #define __NR_fadvise64 413 | |
83 | #elif defined(__s390x__) || defined(__s390__) | |
84 | #define __NR_fadvise64 253 | |
85 | #else | |
86 | #error "Unsupported arch" | |
87 | #endif | |
892199bd JA |
88 | #endif |
89 | ||
90 | static int ioprio_set(int which, int who, int ioprio) | |
91 | { | |
92 | return syscall(__NR_ioprio_set, which, who, ioprio); | |
93 | } | |
94 | ||
b95799ca JA |
95 | /* |
96 | * we want fadvise64 really, but it's so tangled... later | |
97 | */ | |
98 | static int fadvise(int fd, loff_t offset, size_t len, int advice) | |
99 | { | |
100 | #if 0 | |
101 | return syscall(__NR_fadvise64, fd, offset, offset >> 32, len, advice); | |
102 | #else | |
103 | return posix_fadvise(fd, (off_t) offset, len, advice); | |
104 | #endif | |
105 | } | |
106 | ||
892199bd JA |
107 | enum { |
108 | IOPRIO_WHO_PROCESS = 1, | |
109 | IOPRIO_WHO_PGRP, | |
110 | IOPRIO_WHO_USER, | |
111 | }; | |
112 | ||
113 | #define IOPRIO_CLASS_SHIFT 13 | |
114 | ||
892199bd JA |
115 | #define MASK (4095) |
116 | ||
4240cfa1 JA |
117 | #define DEF_BS (4096) |
118 | #define DEF_TIMEOUT (30) | |
119 | #define DEF_RATE_CYCLE (1000) | |
120 | #define DEF_ODIRECT (1) | |
121 | #define DEF_SEQUENTIAL (1) | |
4240cfa1 | 122 | #define DEF_RAND_REPEAT (1) |
02983297 JA |
123 | #define DEF_OVERWRITE (0) |
124 | #define DEF_CREATE (1) | |
b95799ca | 125 | #define DEF_INVALIDATE (1) |
4240cfa1 JA |
126 | |
127 | #define ALIGN(buf) (char *) (((unsigned long) (buf) + MASK) & ~(MASK)) | |
892199bd | 128 | |
4240cfa1 | 129 | static int repeatable = DEF_RAND_REPEAT; |
02bdd9ba | 130 | static int rate_quit = 1; |
892199bd | 131 | |
892199bd | 132 | static int thread_number; |
7dd1389e | 133 | static char *ini_file; |
892199bd | 134 | |
8867c0a8 JA |
135 | static int max_jobs = MAX_JOBS; |
136 | ||
892199bd JA |
137 | static int shm_id; |
138 | ||
4240cfa1 JA |
139 | enum { |
140 | DDIR_READ = 0, | |
141 | DDIR_WRITE, | |
142 | }; | |
892199bd | 143 | |
02bdd9ba JA |
144 | /* |
145 | * thread life cycle | |
146 | */ | |
147 | enum { | |
148 | TD_NOT_CREATED = 0, | |
149 | TD_CREATED, | |
150 | TD_STARTED, | |
151 | TD_EXITED, | |
152 | TD_REAPED, | |
153 | }; | |
154 | ||
02983297 JA |
155 | #define td_read(td) ((td)->ddir == DDIR_READ) |
156 | #define should_fsync(td) (!td_read(td) && !(td)->odirect) | |
157 | ||
892199bd JA |
158 | struct thread_data { |
159 | char file_name[256]; | |
160 | int thread_number; | |
161 | int error; | |
162 | int fd; | |
892199bd | 163 | pid_t pid; |
7292613b | 164 | char *buf; |
4240cfa1 | 165 | volatile int terminate; |
02bdd9ba | 166 | volatile int runstate; |
f737299d JA |
167 | unsigned int ddir; |
168 | unsigned int ioprio; | |
169 | unsigned int sequential; | |
170 | unsigned int bs; | |
171 | unsigned int odirect; | |
172 | unsigned int delay_sleep; | |
4240cfa1 | 173 | unsigned int fsync_blocks; |
fc24389f | 174 | unsigned int start_delay; |
47d45203 | 175 | unsigned int timeout; |
43000118 | 176 | unsigned int use_aio; |
02983297 JA |
177 | unsigned int create_file; |
178 | unsigned int overwrite; | |
b95799ca | 179 | unsigned int invalidate_cache; |
02983297 JA |
180 | unsigned long long file_size; |
181 | unsigned long long file_offset; | |
18e0b78c | 182 | cpu_set_t cpumask; |
86184d14 | 183 | |
43000118 JA |
184 | io_context_t *aio_ctx; |
185 | struct iocb *aio_iocbs; | |
186 | unsigned int aio_depth; | |
187 | unsigned int aio_cur_depth; | |
188 | struct io_event *aio_events; | |
189 | char *aio_iocbs_status; | |
190 | ||
7dd1389e | 191 | unsigned int rate; |
4240cfa1 JA |
192 | unsigned int ratemin; |
193 | unsigned int ratecycle; | |
194 | unsigned long rate_usec_cycle; | |
195 | long rate_pending_usleep; | |
196 | unsigned long rate_blocks; | |
197 | struct timeval lastrate; | |
86184d14 | 198 | |
892199bd JA |
199 | unsigned long max_latency; /* msec */ |
200 | unsigned long min_latency; /* msec */ | |
201 | unsigned long runtime; /* sec */ | |
202 | unsigned long blocks; | |
4240cfa1 | 203 | unsigned long io_blocks; |
892199bd JA |
204 | unsigned long last_block; |
205 | sem_t mutex; | |
892199bd JA |
206 | struct drand48_data random_state; |
207 | ||
208 | /* | |
e128065d | 209 | * bandwidth and latency stats |
892199bd JA |
210 | */ |
211 | unsigned long stat_time; | |
e128065d | 212 | unsigned long stat_time_sq; |
fd1ae4c9 JA |
213 | unsigned long stat_time_samples; |
214 | unsigned long stat_io_blocks; | |
215 | unsigned long stat_bw; | |
216 | unsigned long stat_bw_sq; | |
217 | unsigned long stat_bw_samples; | |
218 | struct timeval stat_sample_time; | |
4240cfa1 JA |
219 | |
220 | struct timeval start; | |
892199bd JA |
221 | }; |
222 | ||
223 | static struct thread_data *threads; | |
47d45203 | 224 | static struct thread_data def_thread; |
892199bd JA |
225 | |
226 | static sem_t startup_sem; | |
227 | ||
5c24b2c4 | 228 | static void sig_handler(int sig) |
892199bd JA |
229 | { |
230 | int i; | |
231 | ||
213b446c JA |
232 | for (i = 0; i < thread_number; i++) { |
233 | struct thread_data *td = &threads[i]; | |
234 | ||
235 | td->terminate = 1; | |
236 | td->start_delay = 0; | |
237 | } | |
02bdd9ba JA |
238 | } |
239 | ||
5c24b2c4 | 240 | static int init_random_state(struct thread_data *td) |
892199bd JA |
241 | { |
242 | unsigned long seed = 123; | |
243 | ||
244 | if (td->sequential) | |
245 | return 0; | |
246 | ||
247 | if (!repeatable) { | |
248 | int fd = open("/dev/random", O_RDONLY); | |
249 | ||
250 | if (fd == -1) { | |
251 | td->error = errno; | |
252 | return 1; | |
253 | } | |
254 | ||
7dd1389e | 255 | if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) { |
892199bd JA |
256 | td->error = EIO; |
257 | close(fd); | |
258 | return 1; | |
259 | } | |
260 | ||
261 | close(fd); | |
262 | } | |
263 | ||
264 | srand48_r(seed, &td->random_state); | |
265 | return 0; | |
266 | } | |
267 | ||
5c24b2c4 | 268 | static unsigned long utime_since(struct timeval *s, struct timeval *e) |
892199bd JA |
269 | { |
270 | double sec, usec; | |
271 | ||
272 | sec = e->tv_sec - s->tv_sec; | |
273 | usec = e->tv_usec - s->tv_usec; | |
274 | if (sec > 0 && usec < 0) { | |
275 | sec--; | |
276 | usec += 1000000; | |
277 | } | |
278 | ||
279 | sec *= (double) 1000000; | |
280 | ||
281 | return sec + usec; | |
282 | } | |
283 | ||
5c24b2c4 | 284 | static unsigned long mtime_since(struct timeval *s, struct timeval *e) |
892199bd JA |
285 | { |
286 | double sec, usec; | |
287 | ||
288 | sec = e->tv_sec - s->tv_sec; | |
289 | usec = e->tv_usec - s->tv_usec; | |
290 | if (sec > 0 && usec < 0) { | |
291 | sec--; | |
292 | usec += 1000000; | |
293 | } | |
294 | ||
295 | sec *= (double) 1000; | |
296 | usec /= (double) 1000; | |
297 | ||
298 | return sec + usec; | |
299 | } | |
300 | ||
be33abe4 JA |
301 | static unsigned long mtime_since_now(struct timeval *s) |
302 | { | |
303 | struct timeval t; | |
304 | ||
305 | gettimeofday(&t, NULL); | |
306 | return mtime_since(s, &t); | |
307 | } | |
308 | ||
98168d55 JA |
309 | static inline unsigned long msec_now(struct timeval *s) |
310 | { | |
311 | return s->tv_sec * 1000 + s->tv_usec / 1000; | |
312 | } | |
313 | ||
5c24b2c4 | 314 | static unsigned long get_next_offset(struct thread_data *td) |
892199bd JA |
315 | { |
316 | unsigned long b; | |
317 | long r; | |
318 | ||
319 | if (!td->sequential) { | |
320 | lrand48_r(&td->random_state, &r); | |
321 | b = (1+(double) (td->blocks-1) * r / (RAND_MAX+1.0)); | |
322 | } else { | |
323 | b = td->last_block; | |
324 | td->last_block++; | |
325 | } | |
326 | ||
02983297 | 327 | return b * td->bs + td->file_offset; |
892199bd JA |
328 | } |
329 | ||
5c24b2c4 | 330 | static void add_stat_sample(struct thread_data *td, unsigned long msec) |
892199bd | 331 | { |
fd1ae4c9 JA |
332 | unsigned long spent; |
333 | ||
892199bd | 334 | td->stat_time += msec; |
e128065d | 335 | td->stat_time_sq += msec * msec; |
fd1ae4c9 JA |
336 | td->stat_time_samples++; |
337 | ||
338 | spent = mtime_since_now(&td->stat_sample_time); | |
339 | if (spent >= 500) { | |
340 | unsigned long rate = ((td->io_blocks - td->stat_io_blocks) * td->bs) / spent; | |
341 | ||
342 | td->stat_bw += rate; | |
343 | td->stat_bw_sq += rate * rate; | |
344 | gettimeofday(&td->stat_sample_time, NULL); | |
345 | td->stat_io_blocks = td->io_blocks; | |
346 | td->stat_bw_samples++; | |
347 | } | |
892199bd JA |
348 | } |
349 | ||
5c24b2c4 | 350 | static void usec_sleep(int usec) |
892199bd | 351 | { |
86184d14 JA |
352 | struct timespec req = { .tv_sec = 0, .tv_nsec = usec * 1000 }; |
353 | struct timespec rem; | |
892199bd JA |
354 | |
355 | do { | |
86184d14 JA |
356 | rem.tv_sec = rem.tv_nsec = 0; |
357 | nanosleep(&req, &rem); | |
358 | if (!rem.tv_nsec) | |
892199bd | 359 | break; |
86184d14 JA |
360 | |
361 | req.tv_nsec = rem.tv_nsec; | |
892199bd JA |
362 | } while (1); |
363 | } | |
364 | ||
5c24b2c4 | 365 | static void rate_throttle(struct thread_data *td, unsigned long time_spent) |
86184d14 | 366 | { |
4240cfa1 JA |
367 | if (!td->rate) |
368 | return; | |
369 | ||
86184d14 JA |
370 | if (time_spent < td->rate_usec_cycle) { |
371 | unsigned long s = td->rate_usec_cycle - time_spent; | |
372 | ||
373 | td->rate_pending_usleep += s; | |
fad86e6a | 374 | if (td->rate_pending_usleep >= 100000) { |
86184d14 JA |
375 | usec_sleep(td->rate_pending_usleep); |
376 | td->rate_pending_usleep = 0; | |
377 | } | |
4240cfa1 | 378 | } else { |
42b2b9fe JA |
379 | long overtime = time_spent - td->rate_usec_cycle; |
380 | ||
4240cfa1 JA |
381 | td->rate_pending_usleep -= overtime; |
382 | } | |
383 | } | |
384 | ||
5c24b2c4 | 385 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
4240cfa1 | 386 | { |
7607bc6b | 387 | unsigned long spent; |
4240cfa1 JA |
388 | unsigned long rate; |
389 | ||
390 | /* | |
391 | * allow a 2 second settle period in the beginning | |
392 | */ | |
7607bc6b | 393 | if (mtime_since(&td->start, now) < 2000) |
4240cfa1 JA |
394 | return 0; |
395 | ||
396 | /* | |
397 | * if rate blocks is set, sample is running | |
398 | */ | |
399 | if (td->rate_blocks) { | |
400 | spent = mtime_since(&td->lastrate, now); | |
401 | if (spent < td->ratecycle) | |
402 | return 0; | |
403 | ||
404 | rate = ((td->io_blocks - td->rate_blocks) * td->bs) / spent; | |
405 | if (rate < td->ratemin) { | |
406 | printf("Client%d: min rate %d not met, got %ldKiB/sec\n", td->thread_number, td->ratemin, rate); | |
02bdd9ba | 407 | if (rate_quit) |
e6402082 | 408 | sig_handler(0); |
4240cfa1 JA |
409 | return 1; |
410 | } | |
86184d14 | 411 | } |
4240cfa1 JA |
412 | |
413 | td->rate_blocks = td->io_blocks; | |
414 | memcpy(&td->lastrate, now, sizeof(*now)); | |
415 | return 0; | |
86184d14 JA |
416 | } |
417 | ||
67903a2e JA |
418 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
419 | { | |
420 | if (mtime_since(&td->start, t) >= td->timeout * 1000) | |
421 | return 1; | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
43000118 | 426 | static void do_sync_io(struct thread_data *td) |
892199bd | 427 | { |
4240cfa1 | 428 | struct timeval s, e; |
86184d14 | 429 | unsigned long blocks, msec, usec; |
892199bd | 430 | |
892199bd JA |
431 | for (blocks = 0; blocks < td->blocks; blocks++) { |
432 | off_t offset = get_next_offset(td); | |
433 | int ret; | |
434 | ||
435 | if (td->terminate) | |
436 | break; | |
437 | ||
438 | if (lseek(td->fd, offset, SEEK_SET) == -1) { | |
439 | td->error = errno; | |
440 | break; | |
441 | } | |
442 | ||
443 | if (td->delay_sleep) | |
86184d14 | 444 | usec_sleep(td->delay_sleep); |
892199bd JA |
445 | |
446 | gettimeofday(&s, NULL); | |
447 | ||
02983297 | 448 | if (td_read(td)) |
7292613b | 449 | ret = read(td->fd, td->buf, td->bs); |
892199bd | 450 | else |
7292613b | 451 | ret = write(td->fd, td->buf, td->bs); |
892199bd | 452 | |
f737299d | 453 | if (ret < (int) td->bs) { |
892199bd JA |
454 | if (ret == -1) |
455 | td->error = errno; | |
456 | break; | |
457 | } | |
458 | ||
4240cfa1 JA |
459 | td->io_blocks++; |
460 | ||
461 | if (should_fsync(td) && td->fsync_blocks && | |
462 | (td->io_blocks % td->fsync_blocks) == 0) | |
463 | fsync(td->fd); | |
464 | ||
86184d14 JA |
465 | gettimeofday(&e, NULL); |
466 | ||
467 | usec = utime_since(&s, &e); | |
86184d14 | 468 | |
4240cfa1 | 469 | rate_throttle(td, usec); |
892199bd | 470 | |
4240cfa1 JA |
471 | if (check_min_rate(td, &e)) { |
472 | td->error = ENODATA; | |
473 | break; | |
474 | } | |
892199bd | 475 | |
4240cfa1 JA |
476 | msec = usec / 1000; |
477 | add_stat_sample(td, msec); | |
892199bd JA |
478 | |
479 | if (msec < td->min_latency) | |
480 | td->min_latency = msec; | |
481 | if (msec > td->max_latency) | |
482 | td->max_latency = msec; | |
67903a2e JA |
483 | |
484 | if (runtime_exceeded(td, &e)) | |
485 | break; | |
892199bd JA |
486 | } |
487 | ||
4240cfa1 | 488 | if (should_fsync(td)) |
892199bd | 489 | fsync(td->fd); |
892199bd | 490 | } |
43000118 JA |
491 | |
492 | static void aio_put_iocb(struct thread_data *td, struct iocb *iocb) | |
493 | { | |
494 | long offset = ((long) iocb - (long) td->aio_iocbs)/ sizeof(struct iocb); | |
495 | ||
496 | td->aio_iocbs_status[offset] = 0; | |
56b0eff0 | 497 | td->aio_cur_depth--; |
43000118 JA |
498 | } |
499 | ||
7292613b | 500 | static struct iocb *aio_get_iocb(struct thread_data *td, struct timeval *t) |
43000118 JA |
501 | { |
502 | struct iocb *iocb = NULL; | |
56b0eff0 | 503 | unsigned int i; |
43000118 JA |
504 | |
505 | for (i = 0; i < td->aio_depth; i++) { | |
506 | if (td->aio_iocbs_status[i] == 0) { | |
507 | td->aio_iocbs_status[i] = 1; | |
508 | iocb = &td->aio_iocbs[i]; | |
509 | break; | |
510 | } | |
511 | } | |
512 | ||
513 | if (iocb) { | |
514 | off_t off = get_next_offset(td); | |
7292613b | 515 | char *p = td->buf + i * td->bs; |
43000118 | 516 | |
02983297 | 517 | if (td_read(td)) |
43000118 JA |
518 | io_prep_pread(iocb, td->fd, p, td->bs, off); |
519 | else | |
520 | io_prep_pwrite(iocb, td->fd, p, td->bs, off); | |
98168d55 JA |
521 | |
522 | io_set_callback(iocb, (io_callback_t) msec_now(t)); | |
43000118 JA |
523 | } |
524 | ||
525 | return iocb; | |
526 | } | |
527 | ||
56b0eff0 JA |
528 | static int aio_submit(struct thread_data *td, struct iocb *iocb) |
529 | { | |
530 | int ret; | |
531 | ||
532 | do { | |
533 | ret = io_submit(*td->aio_ctx, 1, &iocb); | |
534 | if (ret == 1) | |
535 | return 0; | |
536 | ||
537 | if (errno == EINTR) | |
538 | continue; | |
539 | else if (errno == EAGAIN) | |
540 | usleep(100); | |
541 | else | |
542 | break; | |
543 | } while (1); | |
544 | ||
545 | return 1; | |
546 | } | |
547 | ||
98168d55 JA |
548 | #define iocb_time(iocb) ((unsigned long) (iocb)->data) |
549 | ||
43000118 JA |
550 | static void do_async_io(struct thread_data *td) |
551 | { | |
552 | struct timeval s, e; | |
43000118 | 553 | unsigned long blocks, msec, usec; |
43000118 | 554 | |
43000118 JA |
555 | for (blocks = 0; blocks < td->blocks; blocks++) { |
556 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
557 | struct timespec *timeout; | |
43000118 | 558 | int ret, i, min_evts = 0; |
8baf1bcc | 559 | struct iocb *iocb; |
43000118 JA |
560 | |
561 | if (td->terminate) | |
562 | break; | |
563 | ||
564 | if (td->delay_sleep) | |
565 | usec_sleep(td->delay_sleep); | |
566 | ||
567 | gettimeofday(&s, NULL); | |
568 | ||
7292613b | 569 | iocb = aio_get_iocb(td, &s); |
8baf1bcc | 570 | |
56b0eff0 JA |
571 | ret = aio_submit(td, iocb); |
572 | if (ret) { | |
43000118 JA |
573 | td->error = errno; |
574 | break; | |
575 | } | |
576 | ||
577 | td->aio_cur_depth++; | |
43000118 JA |
578 | |
579 | if (td->aio_cur_depth < td->aio_depth) { | |
580 | timeout = &ts; | |
581 | min_evts = 0; | |
582 | } else { | |
583 | timeout = NULL; | |
584 | min_evts = 1; | |
585 | } | |
586 | ||
587 | ret = io_getevents(*td->aio_ctx, min_evts, td->aio_cur_depth, td->aio_events, timeout); | |
588 | if (ret < 0) { | |
589 | td->error = errno; | |
590 | break; | |
591 | } else if (!ret) | |
592 | continue; | |
593 | ||
98168d55 JA |
594 | gettimeofday(&e, NULL); |
595 | ||
43000118 JA |
596 | for (i = 0; i < ret; i++) { |
597 | struct io_event *ev = td->aio_events + i; | |
598 | ||
599 | td->io_blocks++; | |
43000118 JA |
600 | |
601 | iocb = ev->obj; | |
98168d55 JA |
602 | |
603 | msec = msec_now(&e) - iocb_time(iocb); | |
604 | add_stat_sample(td, msec); | |
605 | ||
606 | if (msec < td->min_latency) | |
607 | td->min_latency = msec; | |
608 | if (msec > td->max_latency) | |
609 | td->max_latency = msec; | |
610 | ||
43000118 JA |
611 | aio_put_iocb(td, iocb); |
612 | } | |
613 | ||
98168d55 JA |
614 | /* |
615 | * the rate is batched for now, it should work for batches | |
616 | * of completions except the very first one which may look | |
617 | * a little bursty | |
618 | */ | |
43000118 JA |
619 | usec = utime_since(&s, &e); |
620 | ||
621 | rate_throttle(td, usec); | |
622 | ||
623 | if (check_min_rate(td, &e)) { | |
624 | td->error = ENODATA; | |
625 | break; | |
626 | } | |
67903a2e JA |
627 | |
628 | if (runtime_exceeded(td, &e)) | |
629 | break; | |
43000118 | 630 | } |
43000118 JA |
631 | } |
632 | ||
56b0eff0 | 633 | static void cleanup_pending_aio(struct thread_data *td) |
43000118 | 634 | { |
56b0eff0 JA |
635 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; |
636 | unsigned int i; | |
637 | int r; | |
638 | ||
43000118 | 639 | /* |
56b0eff0 | 640 | * get immediately available events, if any |
43000118 | 641 | */ |
56b0eff0 JA |
642 | r = io_getevents(*td->aio_ctx, 0, td->aio_cur_depth, td->aio_events, &ts); |
643 | if (r > 0) { | |
644 | for (i = 0; i < r; i++) | |
645 | aio_put_iocb(td, &td->aio_iocbs[i]); | |
646 | } | |
647 | ||
648 | /* | |
649 | * now cancel remaining active events | |
650 | */ | |
651 | for (i = 0; i < td->aio_depth; i++) { | |
652 | if (td->aio_iocbs_status[i] == 0) | |
653 | continue; | |
654 | ||
655 | r = io_cancel(*td->aio_ctx, &td->aio_iocbs[i], td->aio_events); | |
656 | if (!r) | |
657 | aio_put_iocb(td, &td->aio_iocbs[i]); | |
658 | } | |
659 | ||
43000118 JA |
660 | if (td->aio_cur_depth) |
661 | io_getevents(*td->aio_ctx, td->aio_cur_depth, td->aio_cur_depth, td->aio_events, NULL); | |
56b0eff0 JA |
662 | } |
663 | ||
664 | static void cleanup_aio(struct thread_data *td) | |
665 | { | |
666 | if (td->aio_cur_depth) | |
667 | cleanup_pending_aio(td); | |
43000118 JA |
668 | |
669 | if (td->aio_ctx) { | |
670 | io_destroy(*td->aio_ctx); | |
671 | free(td->aio_ctx); | |
672 | } | |
673 | if (td->aio_iocbs) | |
674 | free(td->aio_iocbs); | |
675 | if (td->aio_events) | |
676 | free(td->aio_events); | |
677 | if (td->aio_iocbs_status) | |
678 | free(td->aio_iocbs_status); | |
679 | } | |
680 | ||
681 | static int init_aio(struct thread_data *td) | |
682 | { | |
683 | td->aio_ctx = malloc(sizeof(*td->aio_ctx)); | |
684 | ||
685 | if (io_queue_init(td->aio_depth, td->aio_ctx)) { | |
686 | td->error = errno; | |
687 | return 1; | |
688 | } | |
689 | ||
690 | td->aio_iocbs = malloc(td->aio_depth * sizeof(struct iocb)); | |
691 | td->aio_events = malloc(td->aio_depth * sizeof(struct io_event)); | |
692 | td->aio_iocbs_status = malloc(td->aio_depth * sizeof(char)); | |
693 | return 0; | |
694 | } | |
695 | ||
02983297 JA |
696 | static int create_file(struct thread_data *td) |
697 | { | |
698 | unsigned int i; | |
699 | char *b; | |
700 | ||
701 | if (!td->file_size) { | |
702 | fprintf(stderr, "Need size for create\n"); | |
703 | td->error = EINVAL; | |
704 | return 1; | |
705 | } | |
706 | ||
707 | /* | |
708 | * unless specifically asked for overwrite, let normal io extend it | |
709 | */ | |
710 | if (!td_read(td) && !td->overwrite) | |
711 | return 0; | |
712 | ||
713 | td->fd = open(td->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
714 | if (td->fd < 0) { | |
715 | td->error = errno; | |
716 | return 1; | |
717 | } | |
718 | ||
719 | td->blocks = td->file_size / td->bs; | |
720 | b = malloc(td->bs); | |
721 | memset(b, 0, td->bs); | |
722 | ||
723 | for (i = 0; i < td->blocks; i++) { | |
724 | int r = write(td->fd, b, td->bs); | |
725 | ||
726 | if (r == td->bs) | |
727 | continue; | |
728 | else { | |
729 | if (r < 0) | |
730 | td->error = errno; | |
731 | else | |
732 | td->error = EIO; | |
733 | ||
734 | break; | |
735 | } | |
736 | } | |
737 | ||
738 | fsync(td->fd); | |
739 | close(td->fd); | |
740 | td->fd = -1; | |
741 | free(b); | |
742 | return 0; | |
743 | } | |
744 | ||
745 | static int file_exists(struct thread_data *td) | |
746 | { | |
747 | struct stat st; | |
748 | ||
749 | if (stat(td->file_name, &st) != -1) | |
750 | return 1; | |
751 | ||
752 | return errno != ENOENT; | |
753 | } | |
754 | ||
755 | static int setup_file(struct thread_data *td) | |
756 | { | |
757 | struct stat st; | |
758 | int flags = 0; | |
759 | ||
760 | if (!file_exists(td)) { | |
761 | if (!td->create_file) { | |
762 | td->error = ENOENT; | |
763 | return 1; | |
764 | } | |
765 | if (create_file(td)) | |
766 | return 1; | |
767 | } | |
768 | ||
769 | if (td->odirect) | |
770 | flags |= O_DIRECT; | |
771 | ||
772 | if (td_read(td)) | |
773 | td->fd = open(td->file_name, flags | O_RDONLY); | |
774 | else { | |
775 | if (!td->overwrite) | |
776 | flags |= O_TRUNC; | |
777 | ||
778 | td->fd = open(td->file_name, flags | O_WRONLY | O_CREAT, 0600); | |
779 | } | |
780 | ||
781 | if (td->fd == -1) { | |
782 | td->error = errno; | |
783 | return 1; | |
784 | } | |
785 | ||
786 | if (td_read(td)) { | |
787 | if (fstat(td->fd, &st) == -1) { | |
788 | td->error = errno; | |
789 | return 1; | |
790 | } | |
791 | ||
792 | if (td->file_size > st.st_size) | |
793 | st.st_size = td->file_size; | |
794 | } else { | |
795 | if (!td->file_size) | |
796 | td->file_size = 1024 * 1024 * 1024; | |
797 | ||
798 | st.st_size = td->file_size; | |
799 | } | |
800 | ||
801 | td->blocks = (st.st_size - td->file_offset) / td->bs; | |
802 | if (!td->blocks) { | |
803 | fprintf(stderr, "Client%d: no io blocks\n", td->thread_number); | |
804 | td->error = EINVAL; | |
805 | return 1; | |
806 | } | |
807 | ||
b95799ca JA |
808 | if (td->invalidate_cache) { |
809 | if (fadvise(td->fd, 0, st.st_size, POSIX_FADV_DONTNEED) < 0) { | |
810 | td->error = errno; | |
811 | return 1; | |
812 | } | |
813 | } | |
814 | ||
02983297 JA |
815 | return 0; |
816 | } | |
817 | ||
5c24b2c4 | 818 | static void *thread_main(int shm_id, int offset, char *argv[]) |
892199bd JA |
819 | { |
820 | struct thread_data *td; | |
7292613b | 821 | void *data, *ptr = NULL; |
02983297 | 822 | int ret = 1; |
892199bd | 823 | |
7292613b JA |
824 | setsid(); |
825 | ||
892199bd JA |
826 | data = shmat(shm_id, NULL, 0); |
827 | td = data + offset * sizeof(struct thread_data); | |
828 | td->pid = getpid(); | |
829 | ||
18e0b78c JA |
830 | if (sched_setaffinity(td->pid, sizeof(td->cpumask), &td->cpumask) == -1) { |
831 | td->error = errno; | |
832 | goto err; | |
833 | } | |
834 | ||
a642279f | 835 | printf("Client%d (pid=%u) started\n", td->thread_number, td->pid); |
892199bd | 836 | |
4240cfa1 | 837 | sprintf(argv[0], "fio%d", offset); |
892199bd | 838 | |
43000118 JA |
839 | if (td->use_aio && init_aio(td)) |
840 | goto err; | |
841 | ||
892199bd | 842 | if (init_random_state(td)) |
599002b3 | 843 | goto err; |
892199bd | 844 | |
f737299d | 845 | if (td->ioprio) { |
892199bd JA |
846 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
847 | td->error = errno; | |
599002b3 | 848 | goto err; |
892199bd JA |
849 | } |
850 | } | |
851 | ||
02983297 JA |
852 | if (setup_file(td)) |
853 | goto err; | |
854 | ||
e4ed35c3 JA |
855 | if (td->use_aio) |
856 | ptr = malloc(td->bs * td->aio_depth + MASK); | |
857 | else | |
858 | ptr = malloc(td->bs + MASK); | |
859 | ||
860 | td->buf = ALIGN(ptr); | |
861 | ||
892199bd JA |
862 | sem_post(&startup_sem); |
863 | sem_wait(&td->mutex); | |
43000118 | 864 | |
7292613b JA |
865 | gettimeofday(&td->start, NULL); |
866 | ||
867 | if (td->ratemin) | |
868 | memcpy(&td->lastrate, &td->start, sizeof(td->start)); | |
869 | ||
fd1ae4c9 JA |
870 | memcpy(&td->stat_sample_time, &td->start, sizeof(td->start)); |
871 | ||
e4ed35c3 | 872 | if (!td->use_aio) |
43000118 | 873 | do_sync_io(td); |
e4ed35c3 | 874 | else |
43000118 | 875 | do_async_io(td); |
7292613b | 876 | |
be33abe4 | 877 | td->runtime = mtime_since_now(&td->start); |
892199bd | 878 | ret = 0; |
892199bd | 879 | err: |
43000118 JA |
880 | if (td->use_aio) |
881 | cleanup_aio(td); | |
7292613b JA |
882 | if (td->fd != -1) { |
883 | close(td->fd); | |
884 | td->fd = -1; | |
885 | } | |
599002b3 | 886 | if (ret) { |
892199bd | 887 | sem_post(&startup_sem); |
599002b3 JA |
888 | sem_wait(&td->mutex); |
889 | } | |
7292613b JA |
890 | if (ptr) |
891 | free(ptr); | |
02bdd9ba | 892 | td->runstate = TD_EXITED; |
4240cfa1 | 893 | shmdt(data); |
892199bd JA |
894 | return NULL; |
895 | } | |
896 | ||
5c24b2c4 | 897 | static void free_shm(void) |
892199bd JA |
898 | { |
899 | shmdt(threads); | |
900 | } | |
901 | ||
5c24b2c4 | 902 | static void show_thread_status(struct thread_data *td) |
892199bd JA |
903 | { |
904 | int prio, prio_class; | |
905 | unsigned long bw = 0; | |
fd1ae4c9 | 906 | double n_lat, n_bw, m_lat, m_bw, dev_lat, dev_bw; |
892199bd | 907 | |
213b446c JA |
908 | if (!td->io_blocks && !td->error) |
909 | return; | |
910 | ||
892199bd | 911 | if (td->runtime) |
4240cfa1 | 912 | bw = (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
913 | |
914 | prio = td->ioprio & 0xff; | |
915 | prio_class = td->ioprio >> IOPRIO_CLASS_SHIFT; | |
916 | ||
fd1ae4c9 JA |
917 | n_lat = (double) td->stat_time_samples; |
918 | n_bw = (double) td->stat_bw_samples; | |
919 | ||
920 | m_lat = (double) td->stat_time / n_lat; | |
921 | dev_lat = sqrt(((double) td->stat_time_sq - (m_lat * m_lat) / n_lat) / (n_lat - 1)); | |
922 | m_bw = (double) td->stat_bw / n_bw; | |
923 | dev_bw = sqrt(((double) td->stat_bw_sq - (m_bw * m_bw) / n_bw) / (n_bw - 1)); | |
e128065d | 924 | |
a642279f | 925 | printf("Client%d: err=%2d, io=%6luMiB, bw=%6luKiB/sec, latmax=%5lumsec, latavg=%5.02fmsec, latdev=%5.02fmsec, bwavg=%5.02fKiB/sec, bwdev=%5.02fKiB/sec\n", td->thread_number, td->error, td->io_blocks * td->bs >> 20, bw, td->max_latency, m_lat, dev_lat, m_bw, dev_bw); |
892199bd JA |
926 | } |
927 | ||
5c24b2c4 | 928 | static int setup_rate(struct thread_data *td) |
86184d14 | 929 | { |
4240cfa1 JA |
930 | int nr_reads_per_sec; |
931 | ||
932 | if (!td->rate) | |
933 | return 0; | |
934 | ||
935 | if (td->rate < td->ratemin) { | |
936 | fprintf(stderr, "min rate larger than nominal rate\n"); | |
937 | return -1; | |
938 | } | |
86184d14 | 939 | |
4240cfa1 | 940 | nr_reads_per_sec = td->rate * 1024 / td->bs; |
86184d14 JA |
941 | td->rate_usec_cycle = 1000000 / nr_reads_per_sec; |
942 | td->rate_pending_usleep = 0; | |
4240cfa1 | 943 | return 0; |
86184d14 JA |
944 | } |
945 | ||
47d45203 | 946 | static struct thread_data *get_new_job(int global) |
892199bd | 947 | { |
4240cfa1 JA |
948 | struct thread_data *td; |
949 | ||
47d45203 JA |
950 | if (global) |
951 | return &def_thread; | |
8867c0a8 | 952 | if (thread_number >= max_jobs) |
4240cfa1 JA |
953 | return NULL; |
954 | ||
955 | td = &threads[thread_number++]; | |
fc24389f | 956 | memset(td, 0, sizeof(*td)); |
892199bd | 957 | |
e4ed35c3 | 958 | td->fd = -1; |
86184d14 | 959 | td->thread_number = thread_number; |
47d45203 JA |
960 | td->ddir = def_thread.ddir; |
961 | td->bs = def_thread.bs; | |
962 | td->odirect = def_thread.odirect; | |
963 | td->ratecycle = def_thread.ratecycle; | |
964 | td->sequential = def_thread.sequential; | |
67903a2e | 965 | td->timeout = def_thread.timeout; |
02983297 JA |
966 | td->create_file = def_thread.create_file; |
967 | td->overwrite = def_thread.overwrite; | |
b95799ca | 968 | td->invalidate_cache = def_thread.invalidate_cache; |
47d45203 | 969 | memcpy(&td->cpumask, &def_thread.cpumask, sizeof(td->cpumask)); |
f737299d JA |
970 | |
971 | return td; | |
972 | } | |
973 | ||
4240cfa1 JA |
974 | static void put_job(struct thread_data *td) |
975 | { | |
976 | memset(&threads[td->thread_number - 1], 0, sizeof(*td)); | |
977 | thread_number--; | |
978 | } | |
979 | ||
5c24b2c4 JA |
980 | static int add_job(struct thread_data *td, const char *filename, int prioclass, |
981 | int prio) | |
f737299d | 982 | { |
47d45203 JA |
983 | if (td == &def_thread) |
984 | return 0; | |
985 | ||
f737299d | 986 | strcpy(td->file_name, filename); |
4240cfa1 | 987 | sem_init(&td->mutex, 1, 0); |
892199bd | 988 | td->min_latency = 10000000; |
f737299d JA |
989 | td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio; |
990 | ||
43000118 JA |
991 | if (td->use_aio && !td->aio_depth) |
992 | td->aio_depth = 1; | |
993 | ||
4240cfa1 JA |
994 | if (setup_rate(td)) |
995 | return -1; | |
f737299d | 996 | |
e128065d | 997 | printf("Client%d: file=%s, rw=%d, prio=%d/%d, seq=%d, odir=%d, bs=%d, rate=%d, aio=%d, aio_depth=%d\n", td->thread_number, filename, td->ddir, prioclass, prio, td->sequential, td->odirect, td->bs, td->rate, td->use_aio, td->aio_depth); |
4240cfa1 | 998 | return 0; |
892199bd JA |
999 | } |
1000 | ||
18e0b78c JA |
1001 | static void fill_cpu_mask(cpu_set_t cpumask, int cpu) |
1002 | { | |
f737299d | 1003 | unsigned int i; |
18e0b78c JA |
1004 | |
1005 | CPU_ZERO(&cpumask); | |
1006 | ||
1007 | for (i = 0; i < sizeof(int) * 8; i++) { | |
1008 | if ((1 << i) & cpu) | |
1009 | CPU_SET(i, &cpumask); | |
1010 | } | |
1011 | } | |
1012 | ||
5c24b2c4 | 1013 | static void fill_option(const char *input, char *output) |
892199bd JA |
1014 | { |
1015 | int i; | |
1016 | ||
1017 | i = 0; | |
1018 | while (input[i] != ',' && input[i] != '}' && input[i] != '\0') { | |
1019 | output[i] = input[i]; | |
1020 | i++; | |
1021 | } | |
1022 | ||
1023 | output[i] = '\0'; | |
1024 | } | |
1025 | ||
02983297 JA |
1026 | /* |
1027 | * convert string after '=' into decimal value, noting any size suffix | |
1028 | */ | |
1029 | static int str_cnv(char *p, unsigned long long *val) | |
1030 | { | |
1031 | unsigned long mult; | |
1032 | char *str; | |
1033 | int len; | |
1034 | ||
1035 | str = strstr(p, "="); | |
1036 | if (!str) | |
1037 | return 1; | |
1038 | ||
1039 | str++; | |
1040 | len = strlen(str); | |
1041 | mult = 1; | |
1042 | ||
1043 | switch (str[len - 2]) { | |
1044 | case 'k': | |
1045 | case 'K': | |
1046 | mult = 1024; | |
1047 | break; | |
1048 | case 'm': | |
1049 | case 'M': | |
1050 | mult = 1024 * 1024; | |
1051 | break; | |
1052 | case 'g': | |
1053 | case 'G': | |
1054 | mult = 1024 * 1024 * 1024; | |
1055 | break; | |
1056 | } | |
1057 | ||
1058 | *val = strtoul(str, NULL, 10); | |
1059 | if (*val == ULONG_MAX && errno == ERANGE) | |
1060 | return 1; | |
1061 | ||
1062 | *val *= mult; | |
1063 | return 0; | |
1064 | ||
1065 | } | |
1066 | ||
892199bd JA |
1067 | /* |
1068 | * job key words: | |
1069 | * | |
1070 | * file= | |
1071 | * bs= | |
1072 | * rw= | |
1073 | * direct= | |
1074 | */ | |
5c24b2c4 | 1075 | static void parse_jobs_cmd(int argc, char *argv[], int index) |
892199bd | 1076 | { |
f737299d JA |
1077 | struct thread_data *td; |
1078 | unsigned int prio, prioclass, cpu; | |
892199bd JA |
1079 | char *string, *filename, *p, *c; |
1080 | int i; | |
1081 | ||
1082 | string = malloc(256); | |
1083 | filename = malloc(256); | |
1084 | ||
1085 | for (i = index; i < argc; i++) { | |
1086 | p = argv[i]; | |
1087 | ||
1088 | c = strpbrk(p, "{"); | |
1089 | if (!c) | |
1090 | break; | |
1091 | ||
1092 | filename[0] = 0; | |
4240cfa1 | 1093 | |
47d45203 | 1094 | td = get_new_job(0); |
4240cfa1 JA |
1095 | if (!td) |
1096 | break; | |
f737299d | 1097 | |
892199bd | 1098 | prioclass = 2; |
f737299d | 1099 | prio = 4; |
892199bd JA |
1100 | |
1101 | c = strstr(p, "rw="); | |
1102 | if (c) { | |
1103 | c += 3; | |
1104 | if (*c == '0') | |
f737299d | 1105 | td->ddir = DDIR_READ; |
892199bd | 1106 | else |
f737299d | 1107 | td->ddir = DDIR_WRITE; |
892199bd JA |
1108 | } |
1109 | ||
1110 | c = strstr(p, "prio="); | |
1111 | if (c) { | |
1112 | c += 5; | |
1113 | prio = *c - '0'; | |
1114 | } | |
1115 | ||
1116 | c = strstr(p, "prioclass="); | |
1117 | if (c) { | |
1118 | c += 10; | |
1119 | prioclass = *c - '0'; | |
1120 | } | |
1121 | ||
1122 | c = strstr(p, "file="); | |
1123 | if (c) { | |
1124 | c += 5; | |
1125 | fill_option(c, filename); | |
1126 | } | |
1127 | ||
1128 | c = strstr(p, "bs="); | |
1129 | if (c) { | |
1130 | c += 3; | |
1131 | fill_option(c, string); | |
f737299d JA |
1132 | td->bs = strtoul(string, NULL, 10); |
1133 | td->bs <<= 10; | |
892199bd JA |
1134 | } |
1135 | ||
1136 | c = strstr(p, "direct="); | |
1137 | if (c) { | |
1138 | c += 7; | |
1139 | if (*c != '0') | |
f737299d | 1140 | td->odirect = 1; |
892199bd | 1141 | else |
f737299d | 1142 | td->odirect = 0; |
892199bd JA |
1143 | } |
1144 | ||
1145 | c = strstr(p, "delay="); | |
1146 | if (c) { | |
1147 | c += 6; | |
1148 | fill_option(c, string); | |
f737299d | 1149 | td->delay_sleep = strtoul(string, NULL, 10); |
892199bd JA |
1150 | } |
1151 | ||
86184d14 JA |
1152 | c = strstr(p, "rate="); |
1153 | if (c) { | |
1154 | c += 5; | |
1155 | fill_option(c, string); | |
f737299d | 1156 | td->rate = strtoul(string, NULL, 10); |
86184d14 JA |
1157 | } |
1158 | ||
4240cfa1 JA |
1159 | c = strstr(p, "ratemin="); |
1160 | if (c) { | |
1161 | c += 8; | |
1162 | fill_option(c, string); | |
1163 | td->ratemin = strtoul(string, NULL, 10); | |
1164 | } | |
1165 | ||
1166 | c = strstr(p, "ratecycle="); | |
1167 | if (c) { | |
1168 | c += 10; | |
1169 | fill_option(c, string); | |
1170 | td->ratecycle = strtoul(string, NULL, 10); | |
1171 | } | |
1172 | ||
18e0b78c JA |
1173 | c = strstr(p, "cpumask="); |
1174 | if (c) { | |
1175 | c += 8; | |
1176 | fill_option(c, string); | |
1177 | cpu = strtoul(string, NULL, 10); | |
f737299d | 1178 | fill_cpu_mask(td->cpumask, cpu); |
18e0b78c JA |
1179 | } |
1180 | ||
4240cfa1 JA |
1181 | c = strstr(p, "fsync="); |
1182 | if (c) { | |
1183 | c += 6; | |
1184 | fill_option(c, string); | |
1185 | td->fsync_blocks = strtoul(string, NULL, 10); | |
1186 | } | |
18e0b78c | 1187 | |
fc24389f JA |
1188 | c = strstr(p, "startdelay="); |
1189 | if (c) { | |
1190 | c += 11; | |
1191 | fill_option(c, string); | |
1192 | td->start_delay = strtoul(string, NULL, 10); | |
1193 | } | |
1194 | ||
67903a2e JA |
1195 | c = strstr(p, "timeout="); |
1196 | if (c) { | |
1197 | c += 8; | |
1198 | fill_option(c, string); | |
1199 | td->timeout = strtoul(string, NULL, 10); | |
1200 | } | |
1201 | ||
b95799ca JA |
1202 | c = strstr(p, "invalidate="); |
1203 | if (c) { | |
1204 | c += 11; | |
1205 | if (*c != '0') | |
1206 | td->invalidate_cache = 1; | |
1207 | else | |
1208 | td->invalidate_cache = 0; | |
1209 | } | |
1210 | ||
02983297 JA |
1211 | c = strstr(p, "size="); |
1212 | if (c) { | |
1213 | c += 5; | |
1214 | str_cnv(c, &td->file_size); | |
1215 | } | |
1216 | ||
1217 | c = strstr(p, "offset="); | |
1218 | if (c) { | |
1219 | c += 7; | |
1220 | str_cnv(c, &td->file_offset); | |
1221 | } | |
1222 | ||
43000118 JA |
1223 | c = strstr(p, "aio_depth="); |
1224 | if (c) { | |
1225 | c += 10; | |
1226 | fill_option(c, string); | |
1227 | td->aio_depth = strtoul(string, NULL, 10); | |
1228 | } | |
1229 | ||
1230 | c = strstr(p, "aio"); | |
1231 | if (c) | |
1232 | td->use_aio = 1; | |
1233 | ||
02983297 JA |
1234 | c = strstr(p, "create"); |
1235 | if (c) | |
1236 | td->create_file = 1; | |
1237 | ||
1238 | c = strstr(p, "overwrite"); | |
1239 | if (c) | |
1240 | td->overwrite = 1; | |
1241 | ||
892199bd JA |
1242 | c = strstr(p, "random"); |
1243 | if (c) | |
f737299d | 1244 | td->sequential = 0; |
892199bd JA |
1245 | c = strstr(p, "sequential"); |
1246 | if (c) | |
f737299d | 1247 | td->sequential = 1; |
892199bd | 1248 | |
4240cfa1 JA |
1249 | if (add_job(td, filename, prioclass, prio)) |
1250 | put_job(td); | |
892199bd JA |
1251 | } |
1252 | ||
7dd1389e JA |
1253 | free(string); |
1254 | free(filename); | |
892199bd JA |
1255 | } |
1256 | ||
02983297 JA |
1257 | static int check_strcnv(char *p, char *name, unsigned long long *val) |
1258 | { | |
1259 | if (!strstr(p, name)) | |
1260 | return 1; | |
1261 | ||
1262 | return str_cnv(p, val); | |
1263 | } | |
1264 | ||
5c24b2c4 | 1265 | static int check_int(char *p, char *name, unsigned int *val) |
7dd1389e JA |
1266 | { |
1267 | char str[128]; | |
1268 | ||
1269 | sprintf(str, "%s=%%d", name); | |
1270 | if (sscanf(p, str, val) == 1) | |
1271 | return 0; | |
1272 | ||
1273 | sprintf(str, "%s = %%d", name); | |
1274 | if (sscanf(p, str, val) == 1) | |
1275 | return 0; | |
1276 | ||
1277 | return 1; | |
1278 | } | |
1279 | ||
7292613b | 1280 | static int is_empty_or_comment(char *line) |
7dd1389e JA |
1281 | { |
1282 | unsigned int i; | |
1283 | ||
7292613b | 1284 | for (i = 0; i < strlen(line); i++) { |
7292613b | 1285 | if (line[i] == ';') |
47d45203 JA |
1286 | return 1; |
1287 | if (!isspace(line[i]) && !iscntrl(line[i])) | |
7292613b JA |
1288 | return 0; |
1289 | } | |
7dd1389e JA |
1290 | |
1291 | return 1; | |
1292 | } | |
1293 | ||
5c24b2c4 | 1294 | static int parse_jobs_ini(char *file) |
7dd1389e | 1295 | { |
47d45203 | 1296 | unsigned int prioclass, prio, cpu, global; |
f737299d | 1297 | struct thread_data *td; |
7dd1389e JA |
1298 | char *string, *name; |
1299 | fpos_t off; | |
1300 | FILE *f; | |
1301 | char *p; | |
1302 | ||
1303 | f = fopen(file, "r"); | |
1304 | if (!f) { | |
1305 | perror("fopen"); | |
4240cfa1 | 1306 | return 1; |
7dd1389e JA |
1307 | } |
1308 | ||
1309 | string = malloc(4096); | |
1310 | name = malloc(256); | |
1311 | ||
7dd1389e | 1312 | while ((p = fgets(string, 4096, f)) != NULL) { |
7292613b JA |
1313 | if (is_empty_or_comment(p)) |
1314 | continue; | |
7dd1389e JA |
1315 | if (sscanf(p, "[%s]", name) != 1) |
1316 | continue; | |
1317 | ||
47d45203 JA |
1318 | global = !strncmp(name, "global", 6); |
1319 | ||
7dd1389e JA |
1320 | name[strlen(name) - 1] = '\0'; |
1321 | ||
47d45203 | 1322 | td = get_new_job(global); |
4240cfa1 JA |
1323 | if (!td) |
1324 | break; | |
f737299d | 1325 | |
7dd1389e | 1326 | prioclass = 2; |
f737299d | 1327 | prio = 4; |
7dd1389e JA |
1328 | |
1329 | fgetpos(f, &off); | |
1330 | while ((p = fgets(string, 4096, f)) != NULL) { | |
7292613b | 1331 | if (is_empty_or_comment(p)) |
e6402082 JA |
1332 | continue; |
1333 | if (strstr(p, "[")) | |
7dd1389e | 1334 | break; |
f737299d JA |
1335 | if (!check_int(p, "bs", &td->bs)) { |
1336 | td->bs <<= 10; | |
7dd1389e JA |
1337 | fgetpos(f, &off); |
1338 | continue; | |
1339 | } | |
f737299d | 1340 | if (!check_int(p, "rw", &td->ddir)) { |
7dd1389e JA |
1341 | fgetpos(f, &off); |
1342 | continue; | |
1343 | } | |
1344 | if (!check_int(p, "prio", &prio)) { | |
1345 | fgetpos(f, &off); | |
1346 | continue; | |
1347 | } | |
1348 | if (!check_int(p, "prioclass", &prioclass)) { | |
1349 | fgetpos(f, &off); | |
1350 | continue; | |
1351 | } | |
f737299d | 1352 | if (!check_int(p, "direct", &td->odirect)) { |
7dd1389e JA |
1353 | fgetpos(f, &off); |
1354 | continue; | |
1355 | } | |
f737299d | 1356 | if (!check_int(p, "rate", &td->rate)) { |
7dd1389e JA |
1357 | fgetpos(f, &off); |
1358 | continue; | |
1359 | } | |
4240cfa1 JA |
1360 | if (!check_int(p, "ratemin", &td->ratemin)) { |
1361 | fgetpos(f, &off); | |
1362 | continue; | |
1363 | } | |
1364 | if (!check_int(p, "ratecycle", &td->ratecycle)) { | |
1365 | fgetpos(f, &off); | |
1366 | continue; | |
1367 | } | |
f737299d | 1368 | if (!check_int(p, "delay", &td->delay_sleep)) { |
7dd1389e JA |
1369 | fgetpos(f, &off); |
1370 | continue; | |
1371 | } | |
18e0b78c | 1372 | if (!check_int(p, "cpumask", &cpu)) { |
f737299d | 1373 | fill_cpu_mask(td->cpumask, cpu); |
18e0b78c JA |
1374 | fgetpos(f, &off); |
1375 | continue; | |
1376 | } | |
4240cfa1 JA |
1377 | if (!check_int(p, "fsync", &td->fsync_blocks)) { |
1378 | fgetpos(f, &off); | |
1379 | continue; | |
1380 | } | |
fc24389f JA |
1381 | if (!check_int(p, "startdelay", &td->start_delay)) { |
1382 | fgetpos(f, &off); | |
1383 | continue; | |
1384 | } | |
67903a2e JA |
1385 | if (!check_int(p, "timeout", &td->timeout)) { |
1386 | fgetpos(f, &off); | |
1387 | continue; | |
1388 | } | |
b95799ca JA |
1389 | if (!check_int(p, "invalidate",&td->invalidate_cache)) { |
1390 | fgetpos(f, &off); | |
1391 | continue; | |
1392 | } | |
43000118 JA |
1393 | if (!check_int(p, "aio_depth", &td->aio_depth)) { |
1394 | fgetpos(f, &off); | |
1395 | continue; | |
1396 | } | |
02983297 JA |
1397 | if (!check_strcnv(p, "size", &td->file_size)) { |
1398 | fgetpos(f, &off); | |
1399 | continue; | |
1400 | } | |
1401 | if (!check_strcnv(p, "offset", &td->file_offset)) { | |
1402 | fgetpos(f, &off); | |
1403 | continue; | |
1404 | } | |
43000118 | 1405 | if (!strncmp(p, "sequential", 10)) { |
f737299d | 1406 | td->sequential = 1; |
7dd1389e JA |
1407 | fgetpos(f, &off); |
1408 | continue; | |
1409 | } | |
43000118 | 1410 | if (!strncmp(p, "random", 6)) { |
f737299d | 1411 | td->sequential = 0; |
7dd1389e JA |
1412 | fgetpos(f, &off); |
1413 | continue; | |
1414 | } | |
43000118 JA |
1415 | if (!strncmp(p, "aio", 3)) { |
1416 | td->use_aio = 1; | |
1417 | fgetpos(f, &off); | |
1418 | continue; | |
1419 | } | |
02983297 JA |
1420 | if (!strncmp(p, "create", 6)) { |
1421 | td->create_file = 1; | |
1422 | fgetpos(f, &off); | |
1423 | continue; | |
1424 | } | |
1425 | if (!strncmp(p, "overwrite", 9)) { | |
1426 | td->overwrite = 1; | |
1427 | fgetpos(f, &off); | |
1428 | continue; | |
1429 | } | |
e6402082 | 1430 | printf("Client%d: bad option %s\n",td->thread_number,p); |
7dd1389e JA |
1431 | } |
1432 | fsetpos(f, &off); | |
1433 | ||
4240cfa1 JA |
1434 | if (add_job(td, name, prioclass, prio)) |
1435 | put_job(td); | |
7dd1389e JA |
1436 | } |
1437 | ||
1438 | free(string); | |
1439 | free(name); | |
fc7d63df | 1440 | fclose(f); |
4240cfa1 | 1441 | return 0; |
7dd1389e JA |
1442 | } |
1443 | ||
5c24b2c4 | 1444 | static int parse_options(int argc, char *argv[]) |
892199bd | 1445 | { |
01c4d8de | 1446 | int i; |
892199bd JA |
1447 | |
1448 | for (i = 1; i < argc; i++) { | |
1449 | char *parm = argv[i]; | |
1450 | ||
1451 | if (parm[0] != '-') | |
1452 | break; | |
1453 | ||
1454 | parm++; | |
1455 | switch (*parm) { | |
1456 | case 's': | |
1457 | parm++; | |
47d45203 | 1458 | def_thread.sequential = !!atoi(parm); |
892199bd JA |
1459 | break; |
1460 | case 'b': | |
1461 | parm++; | |
47d45203 JA |
1462 | def_thread.bs = atoi(parm); |
1463 | def_thread.bs <<= 10; | |
1464 | if (!def_thread.bs) { | |
4240cfa1 | 1465 | printf("bad block size\n"); |
47d45203 | 1466 | def_thread.bs = DEF_BS; |
4240cfa1 | 1467 | } |
892199bd JA |
1468 | break; |
1469 | case 't': | |
1470 | parm++; | |
47d45203 | 1471 | def_thread.timeout = atoi(parm); |
892199bd | 1472 | break; |
892199bd JA |
1473 | case 'r': |
1474 | parm++; | |
1475 | repeatable = !!atoi(parm); | |
1476 | break; | |
02bdd9ba JA |
1477 | case 'R': |
1478 | parm++; | |
1479 | rate_quit = !!atoi(parm); | |
1480 | break; | |
892199bd JA |
1481 | case 'o': |
1482 | parm++; | |
47d45203 | 1483 | def_thread.odirect = !!atoi(parm); |
892199bd | 1484 | break; |
7dd1389e JA |
1485 | case 'f': |
1486 | if (i + 1 >= argc) { | |
1487 | printf("-f needs file as arg\n"); | |
1488 | break; | |
1489 | } | |
1490 | ini_file = strdup(argv[i+1]); | |
a642279f | 1491 | i++; |
7dd1389e | 1492 | break; |
892199bd | 1493 | default: |
7dd1389e | 1494 | printf("bad option %s\n", argv[i]); |
892199bd JA |
1495 | break; |
1496 | } | |
1497 | } | |
1498 | ||
892199bd JA |
1499 | return i; |
1500 | } | |
1501 | ||
3f39453a JA |
1502 | static void print_thread_status(struct thread_data *td, int nr_running, |
1503 | int t_rate, int m_rate, int die) | |
1504 | { | |
1505 | printf("Client%d: %s\n", td->thread_number, die ? "exited" : "spawned"); | |
1506 | ||
1507 | printf("Threads now running: %d", nr_running); | |
1508 | if (m_rate || t_rate) | |
1509 | printf(", commitrate %d/%dKiB/sec", t_rate, m_rate); | |
1510 | printf("\n"); | |
1511 | } | |
1512 | ||
213b446c | 1513 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
02bdd9ba | 1514 | { |
213b446c | 1515 | int i; |
02bdd9ba | 1516 | |
3f39453a JA |
1517 | /* |
1518 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1519 | */ | |
02bdd9ba JA |
1520 | for (i = 0; i < thread_number; i++) { |
1521 | struct thread_data *td = &threads[i]; | |
1522 | ||
213b446c JA |
1523 | if (td->runstate != TD_EXITED) |
1524 | continue; | |
02bdd9ba | 1525 | |
213b446c JA |
1526 | td->runstate = TD_REAPED; |
1527 | waitpid(td->pid, NULL, 0); | |
1528 | (*nr_running)--; | |
1529 | (*m_rate) -= td->ratemin; | |
1530 | (*t_rate) -= td->rate; | |
e6402082 JA |
1531 | |
1532 | if (td->terminate) | |
1533 | continue; | |
1534 | ||
3f39453a | 1535 | print_thread_status(td, *nr_running, *t_rate, *m_rate, 1); |
213b446c | 1536 | } |
02bdd9ba JA |
1537 | } |
1538 | ||
fc24389f JA |
1539 | static void run_threads(char *argv[]) |
1540 | { | |
be33abe4 | 1541 | struct timeval genesis; |
fc24389f JA |
1542 | struct thread_data *td; |
1543 | unsigned long spent; | |
213b446c | 1544 | int i, todo, nr_running, m_rate, t_rate; |
fc24389f JA |
1545 | |
1546 | gettimeofday(&genesis, NULL); | |
1547 | ||
1548 | printf("Starting %d threads\n", thread_number); | |
1549 | fflush(stdout); | |
1550 | ||
7292613b JA |
1551 | signal(SIGINT, sig_handler); |
1552 | ||
fc24389f | 1553 | todo = thread_number; |
02bdd9ba | 1554 | nr_running = 0; |
213b446c | 1555 | m_rate = t_rate = 0; |
fc24389f | 1556 | |
213b446c | 1557 | while (todo) { |
3f39453a JA |
1558 | /* |
1559 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1560 | */ | |
fc24389f JA |
1561 | for (i = 0; i < thread_number; i++) { |
1562 | td = &threads[i]; | |
1563 | ||
02bdd9ba | 1564 | if (td->runstate != TD_NOT_CREATED) |
fc24389f JA |
1565 | continue; |
1566 | ||
213b446c JA |
1567 | /* |
1568 | * never got a chance to start, killed by other | |
1569 | * thread for some reason | |
1570 | */ | |
1571 | if (td->terminate) { | |
1572 | todo--; | |
1573 | continue; | |
1574 | } | |
1575 | ||
fc24389f | 1576 | if (td->start_delay) { |
be33abe4 | 1577 | spent = mtime_since_now(&genesis); |
fc24389f JA |
1578 | |
1579 | if (td->start_delay * 1000 > spent) | |
1580 | continue; | |
1581 | } | |
1582 | ||
02bdd9ba | 1583 | td->runstate = TD_CREATED; |
fc24389f JA |
1584 | sem_init(&startup_sem, 1, 1); |
1585 | todo--; | |
1586 | ||
1587 | if (fork()) | |
1588 | sem_wait(&startup_sem); | |
1589 | else { | |
1590 | thread_main(shm_id, i, argv); | |
1591 | exit(0); | |
1592 | } | |
1593 | } | |
1594 | ||
3f39453a JA |
1595 | /* |
1596 | * start created threads (TD_CREATED -> TD_STARTED) | |
1597 | */ | |
fc24389f JA |
1598 | for (i = 0; i < thread_number; i++) { |
1599 | struct thread_data *td = &threads[i]; | |
1600 | ||
3f39453a JA |
1601 | if (td->runstate != TD_CREATED) |
1602 | continue; | |
1603 | ||
1604 | td->runstate = TD_STARTED; | |
1605 | nr_running++; | |
1606 | m_rate += td->ratemin; | |
1607 | t_rate += td->rate; | |
1608 | sem_post(&td->mutex); | |
1609 | ||
1610 | print_thread_status(td, nr_running, t_rate, m_rate, 0); | |
fc24389f JA |
1611 | } |
1612 | ||
213b446c | 1613 | reap_threads(&nr_running, &t_rate, &m_rate); |
02bdd9ba | 1614 | |
fc24389f JA |
1615 | if (todo) |
1616 | usleep(100000); | |
1617 | } | |
02bdd9ba JA |
1618 | |
1619 | while (nr_running) { | |
213b446c | 1620 | reap_threads(&nr_running, &t_rate, &m_rate); |
02bdd9ba JA |
1621 | usleep(10000); |
1622 | } | |
fc24389f JA |
1623 | } |
1624 | ||
8867c0a8 | 1625 | int setup_thread_area(void) |
892199bd | 1626 | { |
8867c0a8 JA |
1627 | /* |
1628 | * 1024 is too much on some machines, scale max_jobs if | |
1629 | * we get a failure that looks like too large a shm segment | |
1630 | */ | |
1631 | do { | |
1632 | int s = max_jobs * sizeof(struct thread_data); | |
18e0b78c | 1633 | |
8867c0a8 JA |
1634 | shm_id = shmget(0, s, IPC_CREAT | 0600); |
1635 | if (shm_id != -1) | |
1636 | break; | |
1637 | if (errno != EINVAL) { | |
1638 | perror("shmget"); | |
1639 | break; | |
1640 | } | |
1641 | ||
1642 | max_jobs >>= 1; | |
d4fac444 | 1643 | } while (max_jobs); |
8867c0a8 JA |
1644 | |
1645 | if (shm_id == -1) | |
892199bd | 1646 | return 1; |
892199bd JA |
1647 | |
1648 | threads = shmat(shm_id, NULL, 0); | |
8867c0a8 | 1649 | if (threads == (void *) -1) { |
86184d14 JA |
1650 | perror("shmat"); |
1651 | return 1; | |
1652 | } | |
892199bd JA |
1653 | |
1654 | atexit(free_shm); | |
8867c0a8 JA |
1655 | return 0; |
1656 | } | |
1657 | ||
1658 | int main(int argc, char *argv[]) | |
1659 | { | |
1660 | static unsigned long max_run[2], min_run[2], total_blocks[2]; | |
1661 | static unsigned long max_bw[2], min_bw[2], maxl[2], minl[2]; | |
1662 | static unsigned long read_mb, write_mb, read_agg, write_agg; | |
1663 | int i; | |
1664 | ||
1665 | if (setup_thread_area()) | |
1666 | return 1; | |
892199bd | 1667 | |
47d45203 | 1668 | if (sched_getaffinity(getpid(), sizeof(cpu_set_t), &def_thread.cpumask) == -1) { |
4240cfa1 JA |
1669 | perror("sched_getaffinity"); |
1670 | return 1; | |
1671 | } | |
1672 | ||
47d45203 JA |
1673 | /* |
1674 | * fill globals | |
1675 | */ | |
1676 | def_thread.ddir = DDIR_READ; | |
1677 | def_thread.bs = DEF_BS; | |
02983297 | 1678 | def_thread.odirect = DEF_ODIRECT; |
47d45203 | 1679 | def_thread.ratecycle = DEF_RATE_CYCLE; |
02983297 | 1680 | def_thread.sequential = DEF_SEQUENTIAL; |
47d45203 | 1681 | def_thread.timeout = DEF_TIMEOUT; |
02983297 JA |
1682 | def_thread.create_file = DEF_CREATE; |
1683 | def_thread.overwrite = DEF_OVERWRITE; | |
b95799ca | 1684 | def_thread.invalidate_cache = DEF_INVALIDATE; |
47d45203 | 1685 | |
892199bd | 1686 | i = parse_options(argc, argv); |
7dd1389e | 1687 | |
4240cfa1 JA |
1688 | if (ini_file) { |
1689 | if (parse_jobs_ini(ini_file)) | |
1690 | return 1; | |
1691 | } else | |
1692 | parse_jobs_cmd(argc, argv, i); | |
7dd1389e | 1693 | |
4240cfa1 JA |
1694 | if (!thread_number) { |
1695 | printf("Nothing to do\n"); | |
1696 | return 1; | |
1697 | } | |
7dd1389e | 1698 | |
fc24389f | 1699 | run_threads(argv); |
892199bd | 1700 | |
892199bd JA |
1701 | min_bw[0] = min_run[0] = ~0UL; |
1702 | min_bw[1] = min_run[1] = ~0UL; | |
1703 | minl[0] = minl[1] = ~0UL; | |
1704 | for (i = 0; i < thread_number; i++) { | |
1705 | struct thread_data *td = &threads[i]; | |
1706 | unsigned long bw = 0; | |
1707 | ||
1708 | if (td->error) | |
7dd1389e | 1709 | goto show_stat; |
892199bd JA |
1710 | |
1711 | if (td->runtime < min_run[td->ddir]) | |
1712 | min_run[td->ddir] = td->runtime; | |
1713 | if (td->runtime > max_run[td->ddir]) | |
1714 | max_run[td->ddir] = td->runtime; | |
1715 | ||
1716 | if (td->runtime) | |
4240cfa1 | 1717 | bw = (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1718 | if (bw < min_bw[td->ddir]) |
1719 | min_bw[td->ddir] = bw; | |
1720 | if (bw > max_bw[td->ddir]) | |
1721 | max_bw[td->ddir] = bw; | |
1722 | if (td->max_latency < minl[td->ddir]) | |
1723 | minl[td->ddir] = td->max_latency; | |
1724 | if (td->max_latency > maxl[td->ddir]) | |
1725 | maxl[td->ddir] = td->max_latency; | |
1726 | ||
4240cfa1 | 1727 | total_blocks[td->ddir] += td->io_blocks; |
892199bd | 1728 | |
02983297 | 1729 | if (td_read(td)) { |
4240cfa1 | 1730 | read_mb += (td->bs * td->io_blocks) >> 20; |
892199bd | 1731 | if (td->runtime) |
4240cfa1 | 1732 | read_agg += (td->io_blocks * td->bs) / td->runtime; |
02983297 | 1733 | } else { |
4240cfa1 | 1734 | write_mb += (td->bs * td->io_blocks) >> 20; |
892199bd | 1735 | if (td->runtime) |
4240cfa1 | 1736 | write_agg += (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1737 | } |
1738 | ||
7dd1389e | 1739 | show_stat: |
892199bd JA |
1740 | show_thread_status(td); |
1741 | } | |
1742 | ||
1743 | printf("Run status:\n"); | |
1744 | if (max_run[DDIR_READ]) | |
1745 | printf(" READ: io=%luMiB, aggrb=%lu, minl=%lu, maxl=%lu, minb=%lu, maxb=%lu, mint=%lumsec, maxt=%lumsec\n", read_mb, read_agg, minl[0], maxl[0], min_bw[0], max_bw[0], min_run[0], max_run[0]); | |
1746 | if (max_run[DDIR_WRITE]) | |
1747 | printf(" WRITE: io=%luMiB, aggrb=%lu, minl=%lu, maxl=%lu, minb=%lu, maxb=%lu, mint=%lumsec, maxt=%lumsec\n", write_mb, write_agg, minl[1], maxl[1], min_bw[1], max_bw[1], min_run[1], max_run[1]); | |
fc24389f | 1748 | |
892199bd JA |
1749 | return 0; |
1750 | } |