Commit | Line | Data |
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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 | ||
2c83567e JA |
43 | #include "list.h" |
44 | ||
4240cfa1 JA |
45 | #define MAX_JOBS (1024) |
46 | ||
892199bd JA |
47 | /* |
48 | * assume we don't have _get either, if _set isn't defined | |
49 | */ | |
50 | #ifndef __NR_ioprio_set | |
892199bd JA |
51 | #if defined(__i386__) |
52 | #define __NR_ioprio_set 289 | |
53 | #define __NR_ioprio_get 290 | |
54 | #elif defined(__powerpc__) || defined(__powerpc64__) | |
55 | #define __NR_ioprio_set 273 | |
56 | #define __NR_ioprio_get 274 | |
57 | #elif defined(__x86_64__) | |
58 | #define __NR_ioprio_set 251 | |
59 | #define __NR_ioprio_get 252 | |
60 | #elif defined(__ia64__) | |
61 | #define __NR_ioprio_set 1274 | |
62 | #define __NR_ioprio_get 1275 | |
63 | #elif defined(__alpha__) | |
64 | #define __NR_ioprio_set 442 | |
65 | #define __NR_ioprio_get 443 | |
66 | #elif defined(__s390x__) || defined(__s390__) | |
67 | #define __NR_ioprio_set 282 | |
68 | #define __NR_ioprio_get 283 | |
69 | #else | |
70 | #error "Unsupported arch" | |
71 | #endif | |
b95799ca | 72 | #endif |
892199bd | 73 | |
b95799ca JA |
74 | #ifndef __NR_fadvise64 |
75 | #if defined(__i386__) | |
76 | #define __NR_fadvise64 250 | |
77 | #elif defined(__powerpc__) || defined(__powerpc64__) | |
78 | #define __NR_fadvise64 233 | |
79 | #elif defined(__x86_64__) | |
80 | #define __NR_fadvise64 221 | |
81 | #elif defined(__ia64__) | |
82 | #define __NR_fadvise64 1234 | |
83 | #elif defined(__alpha__) | |
84 | #define __NR_fadvise64 413 | |
85 | #elif defined(__s390x__) || defined(__s390__) | |
86 | #define __NR_fadvise64 253 | |
87 | #else | |
88 | #error "Unsupported arch" | |
89 | #endif | |
892199bd JA |
90 | #endif |
91 | ||
92 | static int ioprio_set(int which, int who, int ioprio) | |
93 | { | |
94 | return syscall(__NR_ioprio_set, which, who, ioprio); | |
95 | } | |
96 | ||
b95799ca JA |
97 | /* |
98 | * we want fadvise64 really, but it's so tangled... later | |
99 | */ | |
100 | static int fadvise(int fd, loff_t offset, size_t len, int advice) | |
101 | { | |
102 | #if 0 | |
103 | return syscall(__NR_fadvise64, fd, offset, offset >> 32, len, advice); | |
104 | #else | |
105 | return posix_fadvise(fd, (off_t) offset, len, advice); | |
106 | #endif | |
107 | } | |
108 | ||
892199bd JA |
109 | enum { |
110 | IOPRIO_WHO_PROCESS = 1, | |
111 | IOPRIO_WHO_PGRP, | |
112 | IOPRIO_WHO_USER, | |
113 | }; | |
114 | ||
115 | #define IOPRIO_CLASS_SHIFT 13 | |
116 | ||
892199bd JA |
117 | #define MASK (4095) |
118 | ||
4240cfa1 JA |
119 | #define DEF_BS (4096) |
120 | #define DEF_TIMEOUT (30) | |
121 | #define DEF_RATE_CYCLE (1000) | |
122 | #define DEF_ODIRECT (1) | |
123 | #define DEF_SEQUENTIAL (1) | |
4240cfa1 | 124 | #define DEF_RAND_REPEAT (1) |
02983297 JA |
125 | #define DEF_OVERWRITE (0) |
126 | #define DEF_CREATE (1) | |
b95799ca | 127 | #define DEF_INVALIDATE (1) |
4240cfa1 JA |
128 | |
129 | #define ALIGN(buf) (char *) (((unsigned long) (buf) + MASK) & ~(MASK)) | |
892199bd | 130 | |
4240cfa1 | 131 | static int repeatable = DEF_RAND_REPEAT; |
02bdd9ba | 132 | static int rate_quit = 1; |
a0a9b35b JA |
133 | static int write_lat_log; |
134 | static int write_bw_log; | |
892199bd | 135 | |
892199bd | 136 | static int thread_number; |
7dd1389e | 137 | static char *ini_file; |
892199bd | 138 | |
8867c0a8 JA |
139 | static int max_jobs = MAX_JOBS; |
140 | ||
8dbff0b1 JA |
141 | static char run_str[MAX_JOBS + 1]; |
142 | ||
892199bd JA |
143 | static int shm_id; |
144 | ||
4240cfa1 JA |
145 | enum { |
146 | DDIR_READ = 0, | |
147 | DDIR_WRITE, | |
148 | }; | |
892199bd | 149 | |
02bdd9ba JA |
150 | /* |
151 | * thread life cycle | |
152 | */ | |
153 | enum { | |
154 | TD_NOT_CREATED = 0, | |
155 | TD_CREATED, | |
156 | TD_STARTED, | |
157 | TD_EXITED, | |
158 | TD_REAPED, | |
159 | }; | |
160 | ||
2c83567e JA |
161 | /* |
162 | * The io unit | |
163 | */ | |
164 | struct io_u { | |
165 | struct iocb iocb; | |
57d753e3 | 166 | struct timeval start_time; |
2c83567e JA |
167 | struct timeval issue_time; |
168 | ||
2c83567e JA |
169 | char *buf; |
170 | unsigned int buflen; | |
4ac89145 | 171 | unsigned long long offset; |
2c83567e JA |
172 | |
173 | struct list_head list; | |
174 | }; | |
175 | ||
57d753e3 JA |
176 | struct io_stat { |
177 | unsigned long val; | |
178 | unsigned long val_sq; | |
179 | unsigned long max_val; | |
180 | unsigned long min_val; | |
181 | unsigned long samples; | |
182 | }; | |
183 | ||
a0a9b35b JA |
184 | struct io_sample { |
185 | unsigned long time; | |
186 | unsigned long val; | |
187 | }; | |
188 | ||
189 | struct io_log { | |
190 | unsigned long nr_samples; | |
191 | unsigned long max_samples; | |
192 | struct io_sample *log; | |
193 | }; | |
194 | ||
02983297 JA |
195 | #define td_read(td) ((td)->ddir == DDIR_READ) |
196 | #define should_fsync(td) (!td_read(td) && !(td)->odirect) | |
197 | ||
892199bd JA |
198 | struct thread_data { |
199 | char file_name[256]; | |
200 | int thread_number; | |
201 | int error; | |
202 | int fd; | |
892199bd | 203 | pid_t pid; |
6b71c826 | 204 | char *orig_buffer; |
4240cfa1 | 205 | volatile int terminate; |
02bdd9ba | 206 | volatile int runstate; |
f737299d JA |
207 | unsigned int ddir; |
208 | unsigned int ioprio; | |
209 | unsigned int sequential; | |
210 | unsigned int bs; | |
211 | unsigned int odirect; | |
212 | unsigned int delay_sleep; | |
4240cfa1 | 213 | unsigned int fsync_blocks; |
fc24389f | 214 | unsigned int start_delay; |
47d45203 | 215 | unsigned int timeout; |
43000118 | 216 | unsigned int use_aio; |
02983297 JA |
217 | unsigned int create_file; |
218 | unsigned int overwrite; | |
b95799ca | 219 | unsigned int invalidate_cache; |
02983297 JA |
220 | unsigned long long file_size; |
221 | unsigned long long file_offset; | |
74b4b5fb | 222 | unsigned int sync_io; |
18e0b78c | 223 | cpu_set_t cpumask; |
86184d14 | 224 | |
63a09e51 JA |
225 | off_t cur_off; |
226 | ||
254605cd | 227 | io_context_t aio_ctx; |
43000118 | 228 | unsigned int aio_depth; |
43000118 | 229 | struct io_event *aio_events; |
2c83567e JA |
230 | |
231 | unsigned int cur_depth; | |
232 | struct list_head io_u_freelist; | |
233 | struct list_head io_u_busylist; | |
43000118 | 234 | |
7dd1389e | 235 | unsigned int rate; |
4240cfa1 JA |
236 | unsigned int ratemin; |
237 | unsigned int ratecycle; | |
238 | unsigned long rate_usec_cycle; | |
239 | long rate_pending_usleep; | |
240 | unsigned long rate_blocks; | |
241 | struct timeval lastrate; | |
86184d14 | 242 | |
892199bd JA |
243 | unsigned long runtime; /* sec */ |
244 | unsigned long blocks; | |
4240cfa1 | 245 | unsigned long io_blocks; |
892199bd JA |
246 | unsigned long last_block; |
247 | sem_t mutex; | |
892199bd JA |
248 | struct drand48_data random_state; |
249 | ||
250 | /* | |
e128065d | 251 | * bandwidth and latency stats |
892199bd | 252 | */ |
57d753e3 JA |
253 | struct io_stat clat_stat; /* completion latency */ |
254 | struct io_stat slat_stat; /* submission latency */ | |
255 | ||
256 | struct io_stat bw_stat; /* bandwidth stats */ | |
fd1ae4c9 | 257 | unsigned long stat_io_blocks; |
fd1ae4c9 | 258 | struct timeval stat_sample_time; |
4240cfa1 | 259 | |
a0a9b35b JA |
260 | struct io_log *lat_log; |
261 | struct io_log *bw_log; | |
262 | ||
4240cfa1 | 263 | struct timeval start; |
892199bd JA |
264 | }; |
265 | ||
266 | static struct thread_data *threads; | |
47d45203 | 267 | static struct thread_data def_thread; |
892199bd JA |
268 | |
269 | static sem_t startup_sem; | |
270 | ||
5c24b2c4 | 271 | static void sig_handler(int sig) |
892199bd JA |
272 | { |
273 | int i; | |
274 | ||
213b446c JA |
275 | for (i = 0; i < thread_number; i++) { |
276 | struct thread_data *td = &threads[i]; | |
277 | ||
278 | td->terminate = 1; | |
279 | td->start_delay = 0; | |
280 | } | |
02bdd9ba JA |
281 | } |
282 | ||
5c24b2c4 | 283 | static int init_random_state(struct thread_data *td) |
892199bd JA |
284 | { |
285 | unsigned long seed = 123; | |
286 | ||
287 | if (td->sequential) | |
288 | return 0; | |
289 | ||
290 | if (!repeatable) { | |
291 | int fd = open("/dev/random", O_RDONLY); | |
292 | ||
293 | if (fd == -1) { | |
294 | td->error = errno; | |
295 | return 1; | |
296 | } | |
297 | ||
7dd1389e | 298 | if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) { |
892199bd JA |
299 | td->error = EIO; |
300 | close(fd); | |
301 | return 1; | |
302 | } | |
303 | ||
304 | close(fd); | |
305 | } | |
306 | ||
307 | srand48_r(seed, &td->random_state); | |
308 | return 0; | |
309 | } | |
310 | ||
5c24b2c4 | 311 | static unsigned long utime_since(struct timeval *s, struct timeval *e) |
892199bd JA |
312 | { |
313 | double sec, usec; | |
314 | ||
315 | sec = e->tv_sec - s->tv_sec; | |
316 | usec = e->tv_usec - s->tv_usec; | |
317 | if (sec > 0 && usec < 0) { | |
318 | sec--; | |
319 | usec += 1000000; | |
320 | } | |
321 | ||
322 | sec *= (double) 1000000; | |
323 | ||
324 | return sec + usec; | |
325 | } | |
326 | ||
5c24b2c4 | 327 | static unsigned long mtime_since(struct timeval *s, struct timeval *e) |
892199bd JA |
328 | { |
329 | double sec, usec; | |
330 | ||
331 | sec = e->tv_sec - s->tv_sec; | |
332 | usec = e->tv_usec - s->tv_usec; | |
333 | if (sec > 0 && usec < 0) { | |
334 | sec--; | |
335 | usec += 1000000; | |
336 | } | |
337 | ||
338 | sec *= (double) 1000; | |
339 | usec /= (double) 1000; | |
340 | ||
341 | return sec + usec; | |
342 | } | |
343 | ||
be33abe4 JA |
344 | static unsigned long mtime_since_now(struct timeval *s) |
345 | { | |
346 | struct timeval t; | |
347 | ||
348 | gettimeofday(&t, NULL); | |
349 | return mtime_since(s, &t); | |
350 | } | |
351 | ||
98168d55 JA |
352 | static inline unsigned long msec_now(struct timeval *s) |
353 | { | |
354 | return s->tv_sec * 1000 + s->tv_usec / 1000; | |
355 | } | |
356 | ||
4ac89145 | 357 | static unsigned long long get_next_offset(struct thread_data *td) |
892199bd | 358 | { |
4ac89145 | 359 | unsigned long long b; |
892199bd JA |
360 | long r; |
361 | ||
362 | if (!td->sequential) { | |
363 | lrand48_r(&td->random_state, &r); | |
364 | b = (1+(double) (td->blocks-1) * r / (RAND_MAX+1.0)); | |
365 | } else { | |
366 | b = td->last_block; | |
367 | td->last_block++; | |
368 | } | |
369 | ||
02983297 | 370 | return b * td->bs + td->file_offset; |
892199bd JA |
371 | } |
372 | ||
57d753e3 JA |
373 | static inline void add_stat_sample(struct thread_data *td, struct io_stat *is, |
374 | unsigned long val) | |
892199bd | 375 | { |
57d753e3 JA |
376 | if (val > is->max_val) |
377 | is->max_val = val; | |
378 | if (val < is->min_val) | |
379 | is->min_val = val; | |
380 | ||
381 | is->val += val; | |
382 | is->val_sq += val * val; | |
383 | is->samples++; | |
384 | } | |
fd1ae4c9 | 385 | |
a0a9b35b JA |
386 | static void add_log_sample(struct thread_data *td, struct io_log *log, |
387 | unsigned long val) | |
388 | { | |
389 | if (log->nr_samples == log->max_samples) { | |
390 | int new_size = sizeof(struct io_sample) * log->max_samples * 2; | |
391 | ||
392 | log->log = realloc(log->log, new_size); | |
393 | log->max_samples <<= 1; | |
394 | } | |
395 | ||
396 | log->log[log->nr_samples].val = val; | |
397 | log->log[log->nr_samples].time = mtime_since_now(&td->start); | |
398 | log->nr_samples++; | |
399 | } | |
400 | ||
57d753e3 JA |
401 | static void add_clat_sample(struct thread_data *td, unsigned long msec) |
402 | { | |
403 | add_stat_sample(td, &td->clat_stat, msec); | |
a0a9b35b JA |
404 | |
405 | if (td->lat_log) | |
406 | add_log_sample(td, td->lat_log, msec); | |
57d753e3 | 407 | } |
fd1ae4c9 | 408 | |
57d753e3 JA |
409 | static void add_slat_sample(struct thread_data *td, unsigned long msec) |
410 | { | |
411 | add_stat_sample(td, &td->slat_stat, msec); | |
412 | } | |
fd1ae4c9 | 413 | |
57d753e3 JA |
414 | static void add_bw_sample(struct thread_data *td, unsigned long msec) |
415 | { | |
416 | unsigned long spent = mtime_since_now(&td->stat_sample_time); | |
417 | unsigned long rate; | |
418 | ||
419 | if (spent < 500) | |
420 | return; | |
421 | ||
422 | rate = ((td->io_blocks - td->stat_io_blocks) * td->bs) / spent; | |
423 | add_stat_sample(td, &td->bw_stat, rate); | |
424 | ||
a0a9b35b JA |
425 | if (td->bw_log) |
426 | add_log_sample(td, td->bw_log, rate); | |
427 | ||
57d753e3 JA |
428 | gettimeofday(&td->stat_sample_time, NULL); |
429 | td->stat_io_blocks = td->io_blocks; | |
892199bd JA |
430 | } |
431 | ||
5c24b2c4 | 432 | static void usec_sleep(int usec) |
892199bd | 433 | { |
86184d14 JA |
434 | struct timespec req = { .tv_sec = 0, .tv_nsec = usec * 1000 }; |
435 | struct timespec rem; | |
892199bd JA |
436 | |
437 | do { | |
86184d14 JA |
438 | rem.tv_sec = rem.tv_nsec = 0; |
439 | nanosleep(&req, &rem); | |
440 | if (!rem.tv_nsec) | |
892199bd | 441 | break; |
86184d14 JA |
442 | |
443 | req.tv_nsec = rem.tv_nsec; | |
892199bd JA |
444 | } while (1); |
445 | } | |
446 | ||
5c24b2c4 | 447 | static void rate_throttle(struct thread_data *td, unsigned long time_spent) |
86184d14 | 448 | { |
4240cfa1 JA |
449 | if (!td->rate) |
450 | return; | |
451 | ||
86184d14 JA |
452 | if (time_spent < td->rate_usec_cycle) { |
453 | unsigned long s = td->rate_usec_cycle - time_spent; | |
454 | ||
455 | td->rate_pending_usleep += s; | |
fad86e6a | 456 | if (td->rate_pending_usleep >= 100000) { |
86184d14 JA |
457 | usec_sleep(td->rate_pending_usleep); |
458 | td->rate_pending_usleep = 0; | |
459 | } | |
4240cfa1 | 460 | } else { |
42b2b9fe JA |
461 | long overtime = time_spent - td->rate_usec_cycle; |
462 | ||
4240cfa1 JA |
463 | td->rate_pending_usleep -= overtime; |
464 | } | |
465 | } | |
466 | ||
5c24b2c4 | 467 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
4240cfa1 | 468 | { |
7607bc6b | 469 | unsigned long spent; |
4240cfa1 JA |
470 | unsigned long rate; |
471 | ||
472 | /* | |
473 | * allow a 2 second settle period in the beginning | |
474 | */ | |
7607bc6b | 475 | if (mtime_since(&td->start, now) < 2000) |
4240cfa1 JA |
476 | return 0; |
477 | ||
478 | /* | |
479 | * if rate blocks is set, sample is running | |
480 | */ | |
481 | if (td->rate_blocks) { | |
482 | spent = mtime_since(&td->lastrate, now); | |
483 | if (spent < td->ratecycle) | |
484 | return 0; | |
485 | ||
486 | rate = ((td->io_blocks - td->rate_blocks) * td->bs) / spent; | |
487 | if (rate < td->ratemin) { | |
488 | printf("Client%d: min rate %d not met, got %ldKiB/sec\n", td->thread_number, td->ratemin, rate); | |
02bdd9ba | 489 | if (rate_quit) |
e6402082 | 490 | sig_handler(0); |
4240cfa1 JA |
491 | return 1; |
492 | } | |
86184d14 | 493 | } |
4240cfa1 JA |
494 | |
495 | td->rate_blocks = td->io_blocks; | |
496 | memcpy(&td->lastrate, now, sizeof(*now)); | |
497 | return 0; | |
86184d14 JA |
498 | } |
499 | ||
67903a2e JA |
500 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
501 | { | |
502 | if (mtime_since(&td->start, t) >= td->timeout * 1000) | |
503 | return 1; | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
2c83567e JA |
508 | static void put_io_u(struct thread_data *td, struct io_u *io_u) |
509 | { | |
510 | list_del(&io_u->list); | |
511 | list_add(&io_u->list, &td->io_u_freelist); | |
512 | td->cur_depth--; | |
513 | } | |
514 | ||
515 | static struct io_u *get_io_u(struct thread_data *td) | |
516 | { | |
517 | struct io_u *io_u; | |
518 | ||
519 | if (list_empty(&td->io_u_freelist)) | |
520 | return NULL; | |
521 | ||
522 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); | |
523 | list_del(&io_u->list); | |
524 | list_add(&io_u->list, &td->io_u_busylist); | |
525 | ||
526 | io_u->offset = get_next_offset(td); | |
527 | ||
528 | if (td->use_aio) { | |
529 | if (td_read(td)) | |
530 | io_prep_pread(&io_u->iocb, td->fd, io_u->buf, io_u->buflen, io_u->offset); | |
531 | else | |
532 | io_prep_pwrite(&io_u->iocb, td->fd, io_u->buf, io_u->buflen, io_u->offset); | |
533 | } | |
534 | ||
57d753e3 | 535 | gettimeofday(&io_u->start_time, NULL); |
2c83567e JA |
536 | td->cur_depth++; |
537 | return io_u; | |
538 | } | |
539 | ||
43000118 | 540 | static void do_sync_io(struct thread_data *td) |
892199bd | 541 | { |
86184d14 | 542 | unsigned long blocks, msec, usec; |
2c83567e | 543 | struct timeval e; |
892199bd | 544 | |
63a09e51 JA |
545 | td->cur_off = 0; |
546 | ||
892199bd | 547 | for (blocks = 0; blocks < td->blocks; blocks++) { |
2c83567e | 548 | struct io_u *io_u; |
892199bd JA |
549 | int ret; |
550 | ||
551 | if (td->terminate) | |
552 | break; | |
553 | ||
2c83567e JA |
554 | io_u = get_io_u(td); |
555 | ||
63a09e51 JA |
556 | if (td->cur_off != io_u->offset) { |
557 | if (lseek(td->fd, io_u->offset, SEEK_SET) == -1) { | |
558 | td->error = errno; | |
559 | break; | |
560 | } | |
892199bd JA |
561 | } |
562 | ||
563 | if (td->delay_sleep) | |
86184d14 | 564 | usec_sleep(td->delay_sleep); |
892199bd | 565 | |
02983297 | 566 | if (td_read(td)) |
2c83567e | 567 | ret = read(td->fd, io_u->buf, io_u->buflen); |
892199bd | 568 | else |
2c83567e | 569 | ret = write(td->fd, io_u->buf, io_u->buflen); |
892199bd | 570 | |
2c83567e | 571 | if (ret < (int) io_u->buflen) { |
892199bd JA |
572 | if (ret == -1) |
573 | td->error = errno; | |
574 | break; | |
575 | } | |
576 | ||
4240cfa1 | 577 | td->io_blocks++; |
63a09e51 | 578 | td->cur_off = io_u->offset + io_u->buflen; |
4240cfa1 JA |
579 | |
580 | if (should_fsync(td) && td->fsync_blocks && | |
581 | (td->io_blocks % td->fsync_blocks) == 0) | |
582 | fsync(td->fd); | |
583 | ||
86184d14 JA |
584 | gettimeofday(&e, NULL); |
585 | ||
57d753e3 | 586 | usec = utime_since(&io_u->start_time, &e); |
86184d14 | 587 | |
4240cfa1 | 588 | rate_throttle(td, usec); |
892199bd | 589 | |
4240cfa1 JA |
590 | if (check_min_rate(td, &e)) { |
591 | td->error = ENODATA; | |
592 | break; | |
593 | } | |
892199bd | 594 | |
4240cfa1 | 595 | msec = usec / 1000; |
57d753e3 JA |
596 | add_clat_sample(td, msec); |
597 | add_bw_sample(td, msec); | |
67903a2e JA |
598 | |
599 | if (runtime_exceeded(td, &e)) | |
600 | break; | |
2c83567e JA |
601 | |
602 | put_io_u(td, io_u); | |
892199bd JA |
603 | } |
604 | ||
4240cfa1 | 605 | if (should_fsync(td)) |
892199bd | 606 | fsync(td->fd); |
892199bd | 607 | } |
43000118 | 608 | |
2c83567e | 609 | static int io_u_queue(struct thread_data *td, struct io_u *io_u) |
56b0eff0 | 610 | { |
2c83567e | 611 | struct iocb *iocb = &io_u->iocb; |
56b0eff0 JA |
612 | int ret; |
613 | ||
614 | do { | |
254605cd | 615 | ret = io_submit(td->aio_ctx, 1, &iocb); |
56b0eff0 JA |
616 | if (ret == 1) |
617 | return 0; | |
a592bd33 | 618 | else if (ret == EAGAIN) |
56b0eff0 | 619 | usleep(100); |
a592bd33 JA |
620 | else if (ret == EINTR) |
621 | continue; | |
56b0eff0 JA |
622 | else |
623 | break; | |
624 | } while (1); | |
625 | ||
a592bd33 | 626 | return ret; |
56b0eff0 JA |
627 | } |
628 | ||
98168d55 | 629 | #define iocb_time(iocb) ((unsigned long) (iocb)->data) |
2c83567e JA |
630 | #define ev_to_iou(ev) (struct io_u *) ((unsigned long) (ev)->obj) |
631 | ||
632 | static void ios_completed(struct thread_data *td, int nr) | |
633 | { | |
634 | unsigned long msec; | |
635 | struct io_u *io_u; | |
636 | struct timeval e; | |
637 | int i; | |
638 | ||
639 | gettimeofday(&e, NULL); | |
640 | ||
641 | for (i = 0; i < nr; i++) { | |
642 | td->io_blocks++; | |
643 | ||
644 | io_u = ev_to_iou(td->aio_events + i); | |
645 | ||
646 | msec = mtime_since(&io_u->issue_time, &e); | |
647 | ||
57d753e3 JA |
648 | add_clat_sample(td, msec); |
649 | add_bw_sample(td, msec); | |
2c83567e JA |
650 | |
651 | put_io_u(td, io_u); | |
652 | } | |
653 | } | |
654 | ||
655 | static void cleanup_pending_aio(struct thread_data *td) | |
656 | { | |
657 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
658 | struct list_head *entry, *n; | |
659 | struct io_u *io_u; | |
660 | int r; | |
661 | ||
662 | /* | |
663 | * get immediately available events, if any | |
664 | */ | |
665 | r = io_getevents(td->aio_ctx, 0, td->cur_depth, td->aio_events, &ts); | |
666 | if (r > 0) | |
667 | ios_completed(td, r); | |
668 | ||
669 | /* | |
670 | * now cancel remaining active events | |
671 | */ | |
672 | list_for_each_safe(entry, n, &td->io_u_busylist) { | |
673 | io_u = list_entry(entry, struct io_u, list); | |
674 | ||
675 | r = io_cancel(td->aio_ctx, &io_u->iocb, td->aio_events); | |
676 | if (!r) | |
677 | put_io_u(td, io_u); | |
678 | } | |
679 | ||
680 | if (td->cur_depth) { | |
681 | r = io_getevents(td->aio_ctx, td->cur_depth, td->cur_depth, td->aio_events, NULL); | |
682 | if (r > 0) | |
683 | ios_completed(td, r); | |
684 | } | |
685 | } | |
98168d55 | 686 | |
43000118 JA |
687 | static void do_async_io(struct thread_data *td) |
688 | { | |
689 | struct timeval s, e; | |
2c83567e | 690 | unsigned long blocks, usec; |
43000118 | 691 | |
43000118 JA |
692 | for (blocks = 0; blocks < td->blocks; blocks++) { |
693 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
694 | struct timespec *timeout; | |
2c83567e JA |
695 | int ret, min_evts = 0; |
696 | struct io_u *io_u; | |
43000118 JA |
697 | |
698 | if (td->terminate) | |
699 | break; | |
700 | ||
701 | if (td->delay_sleep) | |
702 | usec_sleep(td->delay_sleep); | |
703 | ||
2c83567e | 704 | io_u = get_io_u(td); |
43000118 | 705 | |
57d753e3 | 706 | memcpy(&s, &io_u->start_time, sizeof(s)); |
8baf1bcc | 707 | |
2c83567e | 708 | ret = io_u_queue(td, io_u); |
56b0eff0 | 709 | if (ret) { |
a3fdb993 | 710 | put_io_u(td, io_u); |
a592bd33 | 711 | td->error = ret; |
43000118 JA |
712 | break; |
713 | } | |
714 | ||
57d753e3 JA |
715 | gettimeofday(&io_u->issue_time, NULL); |
716 | add_slat_sample(td, mtime_since(&io_u->start_time, &io_u->issue_time)); | |
717 | ||
2c83567e | 718 | if (td->cur_depth < td->aio_depth) { |
43000118 JA |
719 | timeout = &ts; |
720 | min_evts = 0; | |
721 | } else { | |
722 | timeout = NULL; | |
723 | min_evts = 1; | |
724 | } | |
725 | ||
2c83567e | 726 | ret = io_getevents(td->aio_ctx, min_evts, td->cur_depth, td->aio_events, timeout); |
43000118 JA |
727 | if (ret < 0) { |
728 | td->error = errno; | |
729 | break; | |
730 | } else if (!ret) | |
731 | continue; | |
732 | ||
2c83567e | 733 | ios_completed(td, ret); |
43000118 | 734 | |
4ac89145 JA |
735 | if (should_fsync(td) && td->fsync_blocks && |
736 | (td->io_blocks % td->fsync_blocks) == 0) | |
737 | fsync(td->fd); | |
738 | ||
98168d55 JA |
739 | /* |
740 | * the rate is batched for now, it should work for batches | |
741 | * of completions except the very first one which may look | |
742 | * a little bursty | |
743 | */ | |
2c83567e | 744 | gettimeofday(&e, NULL); |
43000118 JA |
745 | usec = utime_since(&s, &e); |
746 | ||
747 | rate_throttle(td, usec); | |
748 | ||
749 | if (check_min_rate(td, &e)) { | |
750 | td->error = ENODATA; | |
751 | break; | |
752 | } | |
67903a2e JA |
753 | |
754 | if (runtime_exceeded(td, &e)) | |
755 | break; | |
43000118 | 756 | } |
56b0eff0 | 757 | |
2c83567e JA |
758 | if (td->cur_depth) |
759 | cleanup_pending_aio(td); | |
4ac89145 JA |
760 | |
761 | if (should_fsync(td)) | |
762 | fsync(td->fd); | |
56b0eff0 JA |
763 | } |
764 | ||
765 | static void cleanup_aio(struct thread_data *td) | |
766 | { | |
254605cd JA |
767 | io_destroy(td->aio_ctx); |
768 | ||
43000118 JA |
769 | if (td->aio_events) |
770 | free(td->aio_events); | |
43000118 JA |
771 | } |
772 | ||
773 | static int init_aio(struct thread_data *td) | |
774 | { | |
254605cd | 775 | if (io_queue_init(td->aio_depth, &td->aio_ctx)) { |
43000118 JA |
776 | td->error = errno; |
777 | return 1; | |
778 | } | |
779 | ||
43000118 | 780 | td->aio_events = malloc(td->aio_depth * sizeof(struct io_event)); |
43000118 JA |
781 | return 0; |
782 | } | |
783 | ||
2c83567e JA |
784 | static void cleanup_io_u(struct thread_data *td) |
785 | { | |
786 | struct list_head *entry, *n; | |
787 | struct io_u *io_u; | |
788 | ||
789 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
790 | io_u = list_entry(entry, struct io_u, list); | |
791 | ||
792 | list_del(&io_u->list); | |
2c83567e JA |
793 | free(io_u); |
794 | } | |
6b71c826 JA |
795 | |
796 | free(td->orig_buffer); | |
2c83567e JA |
797 | } |
798 | ||
799 | static void init_io_u(struct thread_data *td) | |
800 | { | |
801 | struct io_u *io_u; | |
802 | int i, max_units; | |
6b71c826 | 803 | char *p; |
2c83567e JA |
804 | |
805 | if (!td->use_aio) | |
806 | max_units = 1; | |
807 | else | |
808 | max_units = td->aio_depth; | |
809 | ||
6b71c826 JA |
810 | p = malloc(td->bs * max_units + MASK); |
811 | td->orig_buffer = ALIGN(p); | |
812 | ||
2c83567e JA |
813 | INIT_LIST_HEAD(&td->io_u_freelist); |
814 | INIT_LIST_HEAD(&td->io_u_busylist); | |
815 | ||
6b71c826 | 816 | p = td->orig_buffer; |
2c83567e JA |
817 | for (i = 0; i < max_units; i++) { |
818 | io_u = malloc(sizeof(*io_u)); | |
819 | memset(io_u, 0, sizeof(*io_u)); | |
820 | INIT_LIST_HEAD(&io_u->list); | |
821 | ||
6b71c826 | 822 | io_u->buf = p + td->bs * i; |
2c83567e JA |
823 | io_u->buflen = td->bs; |
824 | ||
825 | list_add(&io_u->list, &td->io_u_freelist); | |
826 | } | |
827 | } | |
828 | ||
a0a9b35b JA |
829 | static void setup_log(struct io_log **log) |
830 | { | |
831 | struct io_log *l = malloc(sizeof(*l)); | |
832 | ||
833 | l->nr_samples = 0; | |
834 | l->max_samples = 1024; | |
835 | l->log = malloc(l->max_samples * sizeof(struct io_sample)); | |
836 | *log = l; | |
837 | } | |
838 | ||
839 | static void finish_log(struct thread_data *td, struct io_log *log, char *name) | |
840 | { | |
841 | char file_name[128]; | |
842 | FILE *f; | |
843 | int i; | |
844 | ||
845 | sprintf(file_name, "client%d_%s.log", td->thread_number, name); | |
846 | f = fopen(file_name, "w"); | |
847 | if (!f) { | |
848 | perror("fopen log"); | |
849 | return; | |
850 | } | |
851 | ||
852 | for (i = 0; i < log->nr_samples; i++) | |
853 | fprintf(f, "%lu, %lu\n", log->log[i].time, log->log[i].val); | |
854 | ||
855 | fclose(f); | |
856 | free(log->log); | |
857 | free(log); | |
858 | } | |
859 | ||
02983297 JA |
860 | static int create_file(struct thread_data *td) |
861 | { | |
862 | unsigned int i; | |
863 | char *b; | |
864 | ||
02983297 JA |
865 | /* |
866 | * unless specifically asked for overwrite, let normal io extend it | |
867 | */ | |
868 | if (!td_read(td) && !td->overwrite) | |
869 | return 0; | |
870 | ||
57d753e3 JA |
871 | if (!td->file_size) { |
872 | fprintf(stderr, "Need size for create\n"); | |
873 | td->error = EINVAL; | |
874 | return 1; | |
875 | } | |
876 | ||
02983297 JA |
877 | td->fd = open(td->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
878 | if (td->fd < 0) { | |
879 | td->error = errno; | |
880 | return 1; | |
881 | } | |
882 | ||
883 | td->blocks = td->file_size / td->bs; | |
884 | b = malloc(td->bs); | |
885 | memset(b, 0, td->bs); | |
886 | ||
887 | for (i = 0; i < td->blocks; i++) { | |
888 | int r = write(td->fd, b, td->bs); | |
889 | ||
890 | if (r == td->bs) | |
891 | continue; | |
892 | else { | |
893 | if (r < 0) | |
894 | td->error = errno; | |
895 | else | |
896 | td->error = EIO; | |
897 | ||
898 | break; | |
899 | } | |
900 | } | |
901 | ||
902 | fsync(td->fd); | |
903 | close(td->fd); | |
904 | td->fd = -1; | |
905 | free(b); | |
906 | return 0; | |
907 | } | |
908 | ||
909 | static int file_exists(struct thread_data *td) | |
910 | { | |
911 | struct stat st; | |
912 | ||
913 | if (stat(td->file_name, &st) != -1) | |
914 | return 1; | |
915 | ||
916 | return errno != ENOENT; | |
917 | } | |
918 | ||
919 | static int setup_file(struct thread_data *td) | |
920 | { | |
921 | struct stat st; | |
922 | int flags = 0; | |
923 | ||
924 | if (!file_exists(td)) { | |
925 | if (!td->create_file) { | |
926 | td->error = ENOENT; | |
927 | return 1; | |
928 | } | |
929 | if (create_file(td)) | |
930 | return 1; | |
931 | } | |
932 | ||
933 | if (td->odirect) | |
934 | flags |= O_DIRECT; | |
935 | ||
936 | if (td_read(td)) | |
937 | td->fd = open(td->file_name, flags | O_RDONLY); | |
938 | else { | |
939 | if (!td->overwrite) | |
940 | flags |= O_TRUNC; | |
74b4b5fb JA |
941 | if (td->sync_io) |
942 | flags |= O_SYNC; | |
02983297 JA |
943 | |
944 | td->fd = open(td->file_name, flags | O_WRONLY | O_CREAT, 0600); | |
945 | } | |
946 | ||
947 | if (td->fd == -1) { | |
948 | td->error = errno; | |
949 | return 1; | |
950 | } | |
951 | ||
952 | if (td_read(td)) { | |
953 | if (fstat(td->fd, &st) == -1) { | |
954 | td->error = errno; | |
955 | return 1; | |
956 | } | |
957 | ||
958 | if (td->file_size > st.st_size) | |
959 | st.st_size = td->file_size; | |
960 | } else { | |
961 | if (!td->file_size) | |
962 | td->file_size = 1024 * 1024 * 1024; | |
963 | ||
964 | st.st_size = td->file_size; | |
965 | } | |
966 | ||
967 | td->blocks = (st.st_size - td->file_offset) / td->bs; | |
968 | if (!td->blocks) { | |
969 | fprintf(stderr, "Client%d: no io blocks\n", td->thread_number); | |
970 | td->error = EINVAL; | |
971 | return 1; | |
972 | } | |
973 | ||
b95799ca JA |
974 | if (td->invalidate_cache) { |
975 | if (fadvise(td->fd, 0, st.st_size, POSIX_FADV_DONTNEED) < 0) { | |
976 | td->error = errno; | |
977 | return 1; | |
978 | } | |
979 | } | |
980 | ||
02983297 JA |
981 | return 0; |
982 | } | |
983 | ||
5c24b2c4 | 984 | static void *thread_main(int shm_id, int offset, char *argv[]) |
892199bd JA |
985 | { |
986 | struct thread_data *td; | |
02983297 | 987 | int ret = 1; |
2c83567e | 988 | void *data; |
892199bd | 989 | |
7292613b JA |
990 | setsid(); |
991 | ||
892199bd | 992 | data = shmat(shm_id, NULL, 0); |
4ac89145 JA |
993 | if (data == (void *) -1) { |
994 | perror("shmat"); | |
995 | return NULL; | |
996 | } | |
997 | ||
892199bd JA |
998 | td = data + offset * sizeof(struct thread_data); |
999 | td->pid = getpid(); | |
1000 | ||
2c83567e JA |
1001 | init_io_u(td); |
1002 | ||
18e0b78c JA |
1003 | if (sched_setaffinity(td->pid, sizeof(td->cpumask), &td->cpumask) == -1) { |
1004 | td->error = errno; | |
1005 | goto err; | |
1006 | } | |
1007 | ||
4240cfa1 | 1008 | sprintf(argv[0], "fio%d", offset); |
892199bd | 1009 | |
43000118 JA |
1010 | if (td->use_aio && init_aio(td)) |
1011 | goto err; | |
1012 | ||
892199bd | 1013 | if (init_random_state(td)) |
599002b3 | 1014 | goto err; |
892199bd | 1015 | |
f737299d | 1016 | if (td->ioprio) { |
892199bd JA |
1017 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
1018 | td->error = errno; | |
599002b3 | 1019 | goto err; |
892199bd JA |
1020 | } |
1021 | } | |
1022 | ||
02983297 JA |
1023 | if (setup_file(td)) |
1024 | goto err; | |
1025 | ||
892199bd JA |
1026 | sem_post(&startup_sem); |
1027 | sem_wait(&td->mutex); | |
43000118 | 1028 | |
7292613b JA |
1029 | gettimeofday(&td->start, NULL); |
1030 | ||
1031 | if (td->ratemin) | |
1032 | memcpy(&td->lastrate, &td->start, sizeof(td->start)); | |
1033 | ||
fd1ae4c9 JA |
1034 | memcpy(&td->stat_sample_time, &td->start, sizeof(td->start)); |
1035 | ||
e4ed35c3 | 1036 | if (!td->use_aio) |
43000118 | 1037 | do_sync_io(td); |
e4ed35c3 | 1038 | else |
43000118 | 1039 | do_async_io(td); |
7292613b | 1040 | |
be33abe4 | 1041 | td->runtime = mtime_since_now(&td->start); |
892199bd | 1042 | ret = 0; |
a0a9b35b JA |
1043 | |
1044 | if (td->bw_log) | |
1045 | finish_log(td, td->bw_log, "bw"); | |
1046 | if (td->lat_log) | |
1047 | finish_log(td, td->lat_log, "lat"); | |
4ac89145 | 1048 | |
892199bd | 1049 | err: |
7292613b JA |
1050 | if (td->fd != -1) { |
1051 | close(td->fd); | |
1052 | td->fd = -1; | |
1053 | } | |
4ac89145 JA |
1054 | if (td->use_aio) |
1055 | cleanup_aio(td); | |
2c83567e | 1056 | cleanup_io_u(td); |
599002b3 | 1057 | if (ret) { |
892199bd | 1058 | sem_post(&startup_sem); |
599002b3 JA |
1059 | sem_wait(&td->mutex); |
1060 | } | |
02bdd9ba | 1061 | td->runstate = TD_EXITED; |
4240cfa1 | 1062 | shmdt(data); |
892199bd JA |
1063 | return NULL; |
1064 | } | |
1065 | ||
5c24b2c4 | 1066 | static void free_shm(void) |
892199bd | 1067 | { |
c269123b JA |
1068 | struct shmid_ds sbuf; |
1069 | ||
1070 | if (threads) { | |
1071 | shmdt(threads); | |
1072 | threads = NULL; | |
1073 | shmctl(shm_id, IPC_RMID, &sbuf); | |
1074 | } | |
892199bd JA |
1075 | } |
1076 | ||
57d753e3 JA |
1077 | static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, |
1078 | double *mean, double *dev) | |
1079 | { | |
1080 | double n; | |
1081 | ||
1082 | if (is->samples == 0) | |
1083 | return 0; | |
1084 | ||
1085 | *min = is->min_val; | |
1086 | *max = is->max_val; | |
1087 | ||
1088 | n = (double) is->samples; | |
1089 | *mean = (double) is->val / n; | |
1090 | *dev = sqrt(((double) is->val_sq - (*mean * *mean) / n) / (n - 1)); | |
1091 | return 1; | |
1092 | } | |
1093 | ||
5c24b2c4 | 1094 | static void show_thread_status(struct thread_data *td) |
892199bd JA |
1095 | { |
1096 | int prio, prio_class; | |
57d753e3 JA |
1097 | unsigned long min, max, bw = 0; |
1098 | double mean, dev; | |
892199bd | 1099 | |
213b446c JA |
1100 | if (!td->io_blocks && !td->error) |
1101 | return; | |
1102 | ||
892199bd | 1103 | if (td->runtime) |
4240cfa1 | 1104 | bw = (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1105 | |
1106 | prio = td->ioprio & 0xff; | |
1107 | prio_class = td->ioprio >> IOPRIO_CLASS_SHIFT; | |
1108 | ||
57d753e3 | 1109 | printf("Client%d: err=%2d, io=%6luMiB, bw=%6luKiB/s\n", td->thread_number, td->error, td->io_blocks * td->bs >> 20, bw); |
fd1ae4c9 | 1110 | |
57d753e3 JA |
1111 | if (calc_lat(&td->slat_stat, &min, &max, &mean, &dev)) |
1112 | printf(" slat (msec): min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
1113 | if (calc_lat(&td->clat_stat, &min, &max, &mean, &dev)) | |
1114 | printf(" clat (msec): min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
1115 | if (calc_lat(&td->bw_stat, &min, &max, &mean, &dev)) | |
1116 | printf(" bw (KiB/s) : min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
892199bd JA |
1117 | } |
1118 | ||
5c24b2c4 | 1119 | static int setup_rate(struct thread_data *td) |
86184d14 | 1120 | { |
4240cfa1 JA |
1121 | int nr_reads_per_sec; |
1122 | ||
1123 | if (!td->rate) | |
1124 | return 0; | |
1125 | ||
1126 | if (td->rate < td->ratemin) { | |
1127 | fprintf(stderr, "min rate larger than nominal rate\n"); | |
1128 | return -1; | |
1129 | } | |
86184d14 | 1130 | |
4240cfa1 | 1131 | nr_reads_per_sec = td->rate * 1024 / td->bs; |
86184d14 JA |
1132 | td->rate_usec_cycle = 1000000 / nr_reads_per_sec; |
1133 | td->rate_pending_usleep = 0; | |
4240cfa1 | 1134 | return 0; |
86184d14 JA |
1135 | } |
1136 | ||
47d45203 | 1137 | static struct thread_data *get_new_job(int global) |
892199bd | 1138 | { |
4240cfa1 JA |
1139 | struct thread_data *td; |
1140 | ||
47d45203 JA |
1141 | if (global) |
1142 | return &def_thread; | |
8867c0a8 | 1143 | if (thread_number >= max_jobs) |
4240cfa1 JA |
1144 | return NULL; |
1145 | ||
1146 | td = &threads[thread_number++]; | |
fc24389f | 1147 | memset(td, 0, sizeof(*td)); |
892199bd | 1148 | |
e4ed35c3 | 1149 | td->fd = -1; |
86184d14 | 1150 | td->thread_number = thread_number; |
76cb7b42 | 1151 | |
47d45203 | 1152 | td->ddir = def_thread.ddir; |
76cb7b42 JA |
1153 | td->ioprio = def_thread.ioprio; |
1154 | td->sequential = def_thread.sequential; | |
47d45203 JA |
1155 | td->bs = def_thread.bs; |
1156 | td->odirect = def_thread.odirect; | |
76cb7b42 JA |
1157 | td->delay_sleep = def_thread.delay_sleep; |
1158 | td->fsync_blocks = def_thread.fsync_blocks; | |
1159 | td->start_delay = def_thread.start_delay; | |
67903a2e | 1160 | td->timeout = def_thread.timeout; |
76cb7b42 | 1161 | td->use_aio = def_thread.use_aio; |
02983297 JA |
1162 | td->create_file = def_thread.create_file; |
1163 | td->overwrite = def_thread.overwrite; | |
b95799ca | 1164 | td->invalidate_cache = def_thread.invalidate_cache; |
76cb7b42 | 1165 | td->file_size = def_thread.file_size; |
9b5cf6c0 | 1166 | td->file_offset = def_thread.file_offset; |
76cb7b42 JA |
1167 | td->rate = def_thread.rate; |
1168 | td->ratemin = def_thread.ratemin; | |
1169 | td->ratecycle = def_thread.ratecycle; | |
1170 | td->aio_depth = def_thread.aio_depth; | |
47d45203 | 1171 | memcpy(&td->cpumask, &def_thread.cpumask, sizeof(td->cpumask)); |
f737299d JA |
1172 | |
1173 | return td; | |
1174 | } | |
1175 | ||
4240cfa1 JA |
1176 | static void put_job(struct thread_data *td) |
1177 | { | |
1178 | memset(&threads[td->thread_number - 1], 0, sizeof(*td)); | |
1179 | thread_number--; | |
1180 | } | |
1181 | ||
5c24b2c4 JA |
1182 | static int add_job(struct thread_data *td, const char *filename, int prioclass, |
1183 | int prio) | |
f737299d | 1184 | { |
47d45203 JA |
1185 | if (td == &def_thread) |
1186 | return 0; | |
1187 | ||
f737299d | 1188 | strcpy(td->file_name, filename); |
4240cfa1 | 1189 | sem_init(&td->mutex, 1, 0); |
f737299d JA |
1190 | td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio; |
1191 | ||
57d753e3 JA |
1192 | td->clat_stat.min_val = ULONG_MAX; |
1193 | td->slat_stat.min_val = ULONG_MAX; | |
1194 | td->bw_stat.min_val = ULONG_MAX; | |
1195 | ||
8dbff0b1 JA |
1196 | run_str[td->thread_number - 1] = 'P'; |
1197 | ||
4ac89145 JA |
1198 | if (td->use_aio && !td->aio_depth) |
1199 | td->aio_depth = 1; | |
43000118 | 1200 | |
4240cfa1 JA |
1201 | if (setup_rate(td)) |
1202 | return -1; | |
f737299d | 1203 | |
a0a9b35b JA |
1204 | if (write_lat_log) |
1205 | setup_log(&td->lat_log); | |
1206 | if (write_bw_log) | |
1207 | setup_log(&td->bw_log); | |
1208 | ||
e128065d | 1209 | 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 | 1210 | return 0; |
892199bd JA |
1211 | } |
1212 | ||
18e0b78c JA |
1213 | static void fill_cpu_mask(cpu_set_t cpumask, int cpu) |
1214 | { | |
f737299d | 1215 | unsigned int i; |
18e0b78c JA |
1216 | |
1217 | CPU_ZERO(&cpumask); | |
1218 | ||
1219 | for (i = 0; i < sizeof(int) * 8; i++) { | |
1220 | if ((1 << i) & cpu) | |
1221 | CPU_SET(i, &cpumask); | |
1222 | } | |
1223 | } | |
1224 | ||
5c24b2c4 | 1225 | static void fill_option(const char *input, char *output) |
892199bd JA |
1226 | { |
1227 | int i; | |
1228 | ||
1229 | i = 0; | |
1230 | while (input[i] != ',' && input[i] != '}' && input[i] != '\0') { | |
1231 | output[i] = input[i]; | |
1232 | i++; | |
1233 | } | |
1234 | ||
1235 | output[i] = '\0'; | |
1236 | } | |
1237 | ||
02983297 JA |
1238 | /* |
1239 | * convert string after '=' into decimal value, noting any size suffix | |
1240 | */ | |
1241 | static int str_cnv(char *p, unsigned long long *val) | |
1242 | { | |
1243 | unsigned long mult; | |
1244 | char *str; | |
1245 | int len; | |
1246 | ||
1247 | str = strstr(p, "="); | |
1248 | if (!str) | |
1249 | return 1; | |
1250 | ||
1251 | str++; | |
1252 | len = strlen(str); | |
1253 | mult = 1; | |
1254 | ||
1255 | switch (str[len - 2]) { | |
1256 | case 'k': | |
1257 | case 'K': | |
1258 | mult = 1024; | |
1259 | break; | |
1260 | case 'm': | |
1261 | case 'M': | |
1262 | mult = 1024 * 1024; | |
1263 | break; | |
1264 | case 'g': | |
1265 | case 'G': | |
1266 | mult = 1024 * 1024 * 1024; | |
1267 | break; | |
1268 | } | |
1269 | ||
1270 | *val = strtoul(str, NULL, 10); | |
1271 | if (*val == ULONG_MAX && errno == ERANGE) | |
1272 | return 1; | |
1273 | ||
1274 | *val *= mult; | |
1275 | return 0; | |
1276 | ||
1277 | } | |
1278 | ||
892199bd JA |
1279 | /* |
1280 | * job key words: | |
1281 | * | |
1282 | * file= | |
1283 | * bs= | |
1284 | * rw= | |
1285 | * direct= | |
1286 | */ | |
5c24b2c4 | 1287 | static void parse_jobs_cmd(int argc, char *argv[], int index) |
892199bd | 1288 | { |
f737299d JA |
1289 | struct thread_data *td; |
1290 | unsigned int prio, prioclass, cpu; | |
892199bd JA |
1291 | char *string, *filename, *p, *c; |
1292 | int i; | |
1293 | ||
1294 | string = malloc(256); | |
1295 | filename = malloc(256); | |
1296 | ||
1297 | for (i = index; i < argc; i++) { | |
1298 | p = argv[i]; | |
1299 | ||
1300 | c = strpbrk(p, "{"); | |
1301 | if (!c) | |
1302 | break; | |
1303 | ||
1304 | filename[0] = 0; | |
4240cfa1 | 1305 | |
47d45203 | 1306 | td = get_new_job(0); |
4240cfa1 JA |
1307 | if (!td) |
1308 | break; | |
f737299d | 1309 | |
892199bd | 1310 | prioclass = 2; |
f737299d | 1311 | prio = 4; |
892199bd JA |
1312 | |
1313 | c = strstr(p, "rw="); | |
1314 | if (c) { | |
1315 | c += 3; | |
1316 | if (*c == '0') | |
f737299d | 1317 | td->ddir = DDIR_READ; |
892199bd | 1318 | else |
f737299d | 1319 | td->ddir = DDIR_WRITE; |
892199bd JA |
1320 | } |
1321 | ||
1322 | c = strstr(p, "prio="); | |
1323 | if (c) { | |
1324 | c += 5; | |
1325 | prio = *c - '0'; | |
1326 | } | |
1327 | ||
1328 | c = strstr(p, "prioclass="); | |
1329 | if (c) { | |
1330 | c += 10; | |
1331 | prioclass = *c - '0'; | |
1332 | } | |
1333 | ||
1334 | c = strstr(p, "file="); | |
1335 | if (c) { | |
1336 | c += 5; | |
1337 | fill_option(c, filename); | |
1338 | } | |
1339 | ||
1340 | c = strstr(p, "bs="); | |
1341 | if (c) { | |
1342 | c += 3; | |
1343 | fill_option(c, string); | |
f737299d JA |
1344 | td->bs = strtoul(string, NULL, 10); |
1345 | td->bs <<= 10; | |
892199bd JA |
1346 | } |
1347 | ||
1348 | c = strstr(p, "direct="); | |
1349 | if (c) { | |
1350 | c += 7; | |
1351 | if (*c != '0') | |
f737299d | 1352 | td->odirect = 1; |
892199bd | 1353 | else |
f737299d | 1354 | td->odirect = 0; |
892199bd JA |
1355 | } |
1356 | ||
74b4b5fb JA |
1357 | c = strstr(p, "sync="); |
1358 | if (c) { | |
1359 | c += 5; | |
1360 | if (*c != '0') | |
1361 | td->sync_io = 1; | |
1362 | else | |
1363 | td->sync_io = 0; | |
1364 | } | |
1365 | ||
892199bd JA |
1366 | c = strstr(p, "delay="); |
1367 | if (c) { | |
1368 | c += 6; | |
1369 | fill_option(c, string); | |
f737299d | 1370 | td->delay_sleep = strtoul(string, NULL, 10); |
892199bd JA |
1371 | } |
1372 | ||
86184d14 JA |
1373 | c = strstr(p, "rate="); |
1374 | if (c) { | |
1375 | c += 5; | |
1376 | fill_option(c, string); | |
f737299d | 1377 | td->rate = strtoul(string, NULL, 10); |
86184d14 JA |
1378 | } |
1379 | ||
4240cfa1 JA |
1380 | c = strstr(p, "ratemin="); |
1381 | if (c) { | |
1382 | c += 8; | |
1383 | fill_option(c, string); | |
1384 | td->ratemin = strtoul(string, NULL, 10); | |
1385 | } | |
1386 | ||
1387 | c = strstr(p, "ratecycle="); | |
1388 | if (c) { | |
1389 | c += 10; | |
1390 | fill_option(c, string); | |
1391 | td->ratecycle = strtoul(string, NULL, 10); | |
1392 | } | |
1393 | ||
18e0b78c JA |
1394 | c = strstr(p, "cpumask="); |
1395 | if (c) { | |
1396 | c += 8; | |
1397 | fill_option(c, string); | |
1398 | cpu = strtoul(string, NULL, 10); | |
f737299d | 1399 | fill_cpu_mask(td->cpumask, cpu); |
18e0b78c JA |
1400 | } |
1401 | ||
4240cfa1 JA |
1402 | c = strstr(p, "fsync="); |
1403 | if (c) { | |
1404 | c += 6; | |
1405 | fill_option(c, string); | |
1406 | td->fsync_blocks = strtoul(string, NULL, 10); | |
1407 | } | |
18e0b78c | 1408 | |
fc24389f JA |
1409 | c = strstr(p, "startdelay="); |
1410 | if (c) { | |
1411 | c += 11; | |
1412 | fill_option(c, string); | |
1413 | td->start_delay = strtoul(string, NULL, 10); | |
1414 | } | |
1415 | ||
67903a2e JA |
1416 | c = strstr(p, "timeout="); |
1417 | if (c) { | |
1418 | c += 8; | |
1419 | fill_option(c, string); | |
1420 | td->timeout = strtoul(string, NULL, 10); | |
1421 | } | |
1422 | ||
b95799ca JA |
1423 | c = strstr(p, "invalidate="); |
1424 | if (c) { | |
1425 | c += 11; | |
1426 | if (*c != '0') | |
1427 | td->invalidate_cache = 1; | |
1428 | else | |
1429 | td->invalidate_cache = 0; | |
1430 | } | |
1431 | ||
02983297 JA |
1432 | c = strstr(p, "size="); |
1433 | if (c) { | |
1434 | c += 5; | |
1435 | str_cnv(c, &td->file_size); | |
1436 | } | |
1437 | ||
1438 | c = strstr(p, "offset="); | |
1439 | if (c) { | |
1440 | c += 7; | |
1441 | str_cnv(c, &td->file_offset); | |
1442 | } | |
1443 | ||
43000118 JA |
1444 | c = strstr(p, "aio_depth="); |
1445 | if (c) { | |
1446 | c += 10; | |
1447 | fill_option(c, string); | |
1448 | td->aio_depth = strtoul(string, NULL, 10); | |
1449 | } | |
1450 | ||
1451 | c = strstr(p, "aio"); | |
1452 | if (c) | |
1453 | td->use_aio = 1; | |
1454 | ||
02983297 JA |
1455 | c = strstr(p, "create"); |
1456 | if (c) | |
1457 | td->create_file = 1; | |
1458 | ||
1459 | c = strstr(p, "overwrite"); | |
1460 | if (c) | |
1461 | td->overwrite = 1; | |
1462 | ||
892199bd JA |
1463 | c = strstr(p, "random"); |
1464 | if (c) | |
f737299d | 1465 | td->sequential = 0; |
892199bd JA |
1466 | c = strstr(p, "sequential"); |
1467 | if (c) | |
f737299d | 1468 | td->sequential = 1; |
892199bd | 1469 | |
4240cfa1 JA |
1470 | if (add_job(td, filename, prioclass, prio)) |
1471 | put_job(td); | |
892199bd JA |
1472 | } |
1473 | ||
7dd1389e JA |
1474 | free(string); |
1475 | free(filename); | |
892199bd JA |
1476 | } |
1477 | ||
02983297 JA |
1478 | static int check_strcnv(char *p, char *name, unsigned long long *val) |
1479 | { | |
1480 | if (!strstr(p, name)) | |
1481 | return 1; | |
1482 | ||
1483 | return str_cnv(p, val); | |
1484 | } | |
1485 | ||
5c24b2c4 | 1486 | static int check_int(char *p, char *name, unsigned int *val) |
7dd1389e JA |
1487 | { |
1488 | char str[128]; | |
1489 | ||
1490 | sprintf(str, "%s=%%d", name); | |
1491 | if (sscanf(p, str, val) == 1) | |
1492 | return 0; | |
1493 | ||
1494 | sprintf(str, "%s = %%d", name); | |
1495 | if (sscanf(p, str, val) == 1) | |
1496 | return 0; | |
1497 | ||
1498 | return 1; | |
1499 | } | |
1500 | ||
7292613b | 1501 | static int is_empty_or_comment(char *line) |
7dd1389e JA |
1502 | { |
1503 | unsigned int i; | |
1504 | ||
7292613b | 1505 | for (i = 0; i < strlen(line); i++) { |
7292613b | 1506 | if (line[i] == ';') |
47d45203 JA |
1507 | return 1; |
1508 | if (!isspace(line[i]) && !iscntrl(line[i])) | |
7292613b JA |
1509 | return 0; |
1510 | } | |
7dd1389e JA |
1511 | |
1512 | return 1; | |
1513 | } | |
1514 | ||
5c24b2c4 | 1515 | static int parse_jobs_ini(char *file) |
7dd1389e | 1516 | { |
47d45203 | 1517 | unsigned int prioclass, prio, cpu, global; |
f737299d | 1518 | struct thread_data *td; |
7dd1389e JA |
1519 | char *string, *name; |
1520 | fpos_t off; | |
1521 | FILE *f; | |
1522 | char *p; | |
1523 | ||
1524 | f = fopen(file, "r"); | |
1525 | if (!f) { | |
1526 | perror("fopen"); | |
4240cfa1 | 1527 | return 1; |
7dd1389e JA |
1528 | } |
1529 | ||
1530 | string = malloc(4096); | |
1531 | name = malloc(256); | |
1532 | ||
7dd1389e | 1533 | while ((p = fgets(string, 4096, f)) != NULL) { |
7292613b JA |
1534 | if (is_empty_or_comment(p)) |
1535 | continue; | |
7dd1389e JA |
1536 | if (sscanf(p, "[%s]", name) != 1) |
1537 | continue; | |
1538 | ||
47d45203 JA |
1539 | global = !strncmp(name, "global", 6); |
1540 | ||
7dd1389e JA |
1541 | name[strlen(name) - 1] = '\0'; |
1542 | ||
47d45203 | 1543 | td = get_new_job(global); |
4240cfa1 JA |
1544 | if (!td) |
1545 | break; | |
f737299d | 1546 | |
7dd1389e | 1547 | prioclass = 2; |
f737299d | 1548 | prio = 4; |
7dd1389e JA |
1549 | |
1550 | fgetpos(f, &off); | |
1551 | while ((p = fgets(string, 4096, f)) != NULL) { | |
7292613b | 1552 | if (is_empty_or_comment(p)) |
e6402082 JA |
1553 | continue; |
1554 | if (strstr(p, "[")) | |
7dd1389e | 1555 | break; |
f737299d JA |
1556 | if (!check_int(p, "bs", &td->bs)) { |
1557 | td->bs <<= 10; | |
7dd1389e JA |
1558 | fgetpos(f, &off); |
1559 | continue; | |
1560 | } | |
f737299d | 1561 | if (!check_int(p, "rw", &td->ddir)) { |
7dd1389e JA |
1562 | fgetpos(f, &off); |
1563 | continue; | |
1564 | } | |
1565 | if (!check_int(p, "prio", &prio)) { | |
1566 | fgetpos(f, &off); | |
1567 | continue; | |
1568 | } | |
1569 | if (!check_int(p, "prioclass", &prioclass)) { | |
1570 | fgetpos(f, &off); | |
1571 | continue; | |
1572 | } | |
f737299d | 1573 | if (!check_int(p, "direct", &td->odirect)) { |
7dd1389e JA |
1574 | fgetpos(f, &off); |
1575 | continue; | |
1576 | } | |
f737299d | 1577 | if (!check_int(p, "rate", &td->rate)) { |
7dd1389e JA |
1578 | fgetpos(f, &off); |
1579 | continue; | |
1580 | } | |
4240cfa1 JA |
1581 | if (!check_int(p, "ratemin", &td->ratemin)) { |
1582 | fgetpos(f, &off); | |
1583 | continue; | |
1584 | } | |
1585 | if (!check_int(p, "ratecycle", &td->ratecycle)) { | |
1586 | fgetpos(f, &off); | |
1587 | continue; | |
1588 | } | |
f737299d | 1589 | if (!check_int(p, "delay", &td->delay_sleep)) { |
7dd1389e JA |
1590 | fgetpos(f, &off); |
1591 | continue; | |
1592 | } | |
18e0b78c | 1593 | if (!check_int(p, "cpumask", &cpu)) { |
f737299d | 1594 | fill_cpu_mask(td->cpumask, cpu); |
18e0b78c JA |
1595 | fgetpos(f, &off); |
1596 | continue; | |
1597 | } | |
4240cfa1 JA |
1598 | if (!check_int(p, "fsync", &td->fsync_blocks)) { |
1599 | fgetpos(f, &off); | |
1600 | continue; | |
1601 | } | |
fc24389f JA |
1602 | if (!check_int(p, "startdelay", &td->start_delay)) { |
1603 | fgetpos(f, &off); | |
1604 | continue; | |
1605 | } | |
67903a2e JA |
1606 | if (!check_int(p, "timeout", &td->timeout)) { |
1607 | fgetpos(f, &off); | |
1608 | continue; | |
1609 | } | |
b95799ca JA |
1610 | if (!check_int(p, "invalidate",&td->invalidate_cache)) { |
1611 | fgetpos(f, &off); | |
1612 | continue; | |
1613 | } | |
43000118 JA |
1614 | if (!check_int(p, "aio_depth", &td->aio_depth)) { |
1615 | fgetpos(f, &off); | |
1616 | continue; | |
1617 | } | |
74b4b5fb JA |
1618 | if (!check_int(p, "sync", &td->sync_io)) { |
1619 | fgetpos(f, &off); | |
1620 | continue; | |
1621 | } | |
02983297 JA |
1622 | if (!check_strcnv(p, "size", &td->file_size)) { |
1623 | fgetpos(f, &off); | |
1624 | continue; | |
1625 | } | |
1626 | if (!check_strcnv(p, "offset", &td->file_offset)) { | |
1627 | fgetpos(f, &off); | |
1628 | continue; | |
1629 | } | |
43000118 | 1630 | if (!strncmp(p, "sequential", 10)) { |
f737299d | 1631 | td->sequential = 1; |
7dd1389e JA |
1632 | fgetpos(f, &off); |
1633 | continue; | |
1634 | } | |
43000118 | 1635 | if (!strncmp(p, "random", 6)) { |
f737299d | 1636 | td->sequential = 0; |
7dd1389e JA |
1637 | fgetpos(f, &off); |
1638 | continue; | |
1639 | } | |
43000118 JA |
1640 | if (!strncmp(p, "aio", 3)) { |
1641 | td->use_aio = 1; | |
1642 | fgetpos(f, &off); | |
1643 | continue; | |
1644 | } | |
02983297 JA |
1645 | if (!strncmp(p, "create", 6)) { |
1646 | td->create_file = 1; | |
1647 | fgetpos(f, &off); | |
1648 | continue; | |
1649 | } | |
1650 | if (!strncmp(p, "overwrite", 9)) { | |
1651 | td->overwrite = 1; | |
1652 | fgetpos(f, &off); | |
1653 | continue; | |
1654 | } | |
e6402082 | 1655 | printf("Client%d: bad option %s\n",td->thread_number,p); |
7dd1389e JA |
1656 | } |
1657 | fsetpos(f, &off); | |
1658 | ||
4240cfa1 JA |
1659 | if (add_job(td, name, prioclass, prio)) |
1660 | put_job(td); | |
7dd1389e JA |
1661 | } |
1662 | ||
1663 | free(string); | |
1664 | free(name); | |
fc7d63df | 1665 | fclose(f); |
4240cfa1 | 1666 | return 0; |
7dd1389e JA |
1667 | } |
1668 | ||
5c24b2c4 | 1669 | static int parse_options(int argc, char *argv[]) |
892199bd | 1670 | { |
01c4d8de | 1671 | int i; |
892199bd JA |
1672 | |
1673 | for (i = 1; i < argc; i++) { | |
1674 | char *parm = argv[i]; | |
1675 | ||
1676 | if (parm[0] != '-') | |
1677 | break; | |
1678 | ||
1679 | parm++; | |
1680 | switch (*parm) { | |
1681 | case 's': | |
1682 | parm++; | |
47d45203 | 1683 | def_thread.sequential = !!atoi(parm); |
892199bd JA |
1684 | break; |
1685 | case 'b': | |
1686 | parm++; | |
47d45203 JA |
1687 | def_thread.bs = atoi(parm); |
1688 | def_thread.bs <<= 10; | |
1689 | if (!def_thread.bs) { | |
4240cfa1 | 1690 | printf("bad block size\n"); |
47d45203 | 1691 | def_thread.bs = DEF_BS; |
4240cfa1 | 1692 | } |
892199bd JA |
1693 | break; |
1694 | case 't': | |
1695 | parm++; | |
47d45203 | 1696 | def_thread.timeout = atoi(parm); |
892199bd | 1697 | break; |
892199bd JA |
1698 | case 'r': |
1699 | parm++; | |
1700 | repeatable = !!atoi(parm); | |
1701 | break; | |
02bdd9ba JA |
1702 | case 'R': |
1703 | parm++; | |
1704 | rate_quit = !!atoi(parm); | |
1705 | break; | |
892199bd JA |
1706 | case 'o': |
1707 | parm++; | |
47d45203 | 1708 | def_thread.odirect = !!atoi(parm); |
892199bd | 1709 | break; |
7dd1389e JA |
1710 | case 'f': |
1711 | if (i + 1 >= argc) { | |
1712 | printf("-f needs file as arg\n"); | |
1713 | break; | |
1714 | } | |
1715 | ini_file = strdup(argv[i+1]); | |
a642279f | 1716 | i++; |
7dd1389e | 1717 | break; |
a0a9b35b JA |
1718 | case 'l': |
1719 | write_lat_log = 1; | |
1720 | break; | |
1721 | case 'w': | |
1722 | write_bw_log = 1; | |
1723 | break; | |
892199bd | 1724 | default: |
7dd1389e | 1725 | printf("bad option %s\n", argv[i]); |
892199bd JA |
1726 | break; |
1727 | } | |
1728 | } | |
1729 | ||
892199bd JA |
1730 | return i; |
1731 | } | |
1732 | ||
3f39453a | 1733 | static void print_thread_status(struct thread_data *td, int nr_running, |
8dbff0b1 | 1734 | int t_rate, int m_rate) |
3f39453a | 1735 | { |
3f39453a JA |
1736 | printf("Threads now running: %d", nr_running); |
1737 | if (m_rate || t_rate) | |
1738 | printf(", commitrate %d/%dKiB/sec", t_rate, m_rate); | |
8dbff0b1 JA |
1739 | printf(" : [%s]\r", run_str); |
1740 | fflush(stdout); | |
3f39453a JA |
1741 | } |
1742 | ||
213b446c | 1743 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
02bdd9ba | 1744 | { |
213b446c | 1745 | int i; |
02bdd9ba | 1746 | |
3f39453a JA |
1747 | /* |
1748 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1749 | */ | |
02bdd9ba JA |
1750 | for (i = 0; i < thread_number; i++) { |
1751 | struct thread_data *td = &threads[i]; | |
1752 | ||
213b446c JA |
1753 | if (td->runstate != TD_EXITED) |
1754 | continue; | |
02bdd9ba | 1755 | |
213b446c | 1756 | td->runstate = TD_REAPED; |
8dbff0b1 | 1757 | run_str[td->thread_number - 1] = '_'; |
213b446c JA |
1758 | waitpid(td->pid, NULL, 0); |
1759 | (*nr_running)--; | |
1760 | (*m_rate) -= td->ratemin; | |
1761 | (*t_rate) -= td->rate; | |
e6402082 JA |
1762 | |
1763 | if (td->terminate) | |
1764 | continue; | |
1765 | ||
8dbff0b1 | 1766 | print_thread_status(td, *nr_running, *t_rate, *m_rate); |
213b446c | 1767 | } |
02bdd9ba JA |
1768 | } |
1769 | ||
fc24389f JA |
1770 | static void run_threads(char *argv[]) |
1771 | { | |
be33abe4 | 1772 | struct timeval genesis; |
fc24389f JA |
1773 | struct thread_data *td; |
1774 | unsigned long spent; | |
213b446c | 1775 | int i, todo, nr_running, m_rate, t_rate; |
fc24389f JA |
1776 | |
1777 | gettimeofday(&genesis, NULL); | |
1778 | ||
1779 | printf("Starting %d threads\n", thread_number); | |
1780 | fflush(stdout); | |
1781 | ||
7292613b JA |
1782 | signal(SIGINT, sig_handler); |
1783 | ||
fc24389f | 1784 | todo = thread_number; |
02bdd9ba | 1785 | nr_running = 0; |
213b446c | 1786 | m_rate = t_rate = 0; |
fc24389f | 1787 | |
213b446c | 1788 | while (todo) { |
3f39453a JA |
1789 | /* |
1790 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1791 | */ | |
fc24389f JA |
1792 | for (i = 0; i < thread_number; i++) { |
1793 | td = &threads[i]; | |
1794 | ||
02bdd9ba | 1795 | if (td->runstate != TD_NOT_CREATED) |
fc24389f JA |
1796 | continue; |
1797 | ||
213b446c JA |
1798 | /* |
1799 | * never got a chance to start, killed by other | |
1800 | * thread for some reason | |
1801 | */ | |
1802 | if (td->terminate) { | |
1803 | todo--; | |
1804 | continue; | |
1805 | } | |
1806 | ||
fc24389f | 1807 | if (td->start_delay) { |
be33abe4 | 1808 | spent = mtime_since_now(&genesis); |
fc24389f JA |
1809 | |
1810 | if (td->start_delay * 1000 > spent) | |
1811 | continue; | |
1812 | } | |
1813 | ||
02bdd9ba | 1814 | td->runstate = TD_CREATED; |
8dbff0b1 | 1815 | run_str[td->thread_number - 1] = 'C'; |
fc24389f JA |
1816 | sem_init(&startup_sem, 1, 1); |
1817 | todo--; | |
1818 | ||
1819 | if (fork()) | |
1820 | sem_wait(&startup_sem); | |
1821 | else { | |
1822 | thread_main(shm_id, i, argv); | |
1823 | exit(0); | |
1824 | } | |
1825 | } | |
1826 | ||
3f39453a JA |
1827 | /* |
1828 | * start created threads (TD_CREATED -> TD_STARTED) | |
1829 | */ | |
fc24389f JA |
1830 | for (i = 0; i < thread_number; i++) { |
1831 | struct thread_data *td = &threads[i]; | |
1832 | ||
3f39453a JA |
1833 | if (td->runstate != TD_CREATED) |
1834 | continue; | |
1835 | ||
1836 | td->runstate = TD_STARTED; | |
8dbff0b1 | 1837 | run_str[td->thread_number - 1] = '+'; |
3f39453a JA |
1838 | nr_running++; |
1839 | m_rate += td->ratemin; | |
1840 | t_rate += td->rate; | |
1841 | sem_post(&td->mutex); | |
1842 | ||
8dbff0b1 | 1843 | print_thread_status(td, nr_running, t_rate, m_rate); |
fc24389f JA |
1844 | } |
1845 | ||
213b446c | 1846 | reap_threads(&nr_running, &t_rate, &m_rate); |
02bdd9ba | 1847 | |
fc24389f JA |
1848 | if (todo) |
1849 | usleep(100000); | |
1850 | } | |
02bdd9ba JA |
1851 | |
1852 | while (nr_running) { | |
213b446c | 1853 | reap_threads(&nr_running, &t_rate, &m_rate); |
02bdd9ba JA |
1854 | usleep(10000); |
1855 | } | |
fc24389f JA |
1856 | } |
1857 | ||
8867c0a8 | 1858 | int setup_thread_area(void) |
892199bd | 1859 | { |
8867c0a8 JA |
1860 | /* |
1861 | * 1024 is too much on some machines, scale max_jobs if | |
1862 | * we get a failure that looks like too large a shm segment | |
1863 | */ | |
1864 | do { | |
1865 | int s = max_jobs * sizeof(struct thread_data); | |
18e0b78c | 1866 | |
8867c0a8 JA |
1867 | shm_id = shmget(0, s, IPC_CREAT | 0600); |
1868 | if (shm_id != -1) | |
1869 | break; | |
1870 | if (errno != EINVAL) { | |
1871 | perror("shmget"); | |
1872 | break; | |
1873 | } | |
1874 | ||
1875 | max_jobs >>= 1; | |
d4fac444 | 1876 | } while (max_jobs); |
8867c0a8 JA |
1877 | |
1878 | if (shm_id == -1) | |
892199bd | 1879 | return 1; |
892199bd JA |
1880 | |
1881 | threads = shmat(shm_id, NULL, 0); | |
8867c0a8 | 1882 | if (threads == (void *) -1) { |
86184d14 JA |
1883 | perror("shmat"); |
1884 | return 1; | |
1885 | } | |
892199bd JA |
1886 | |
1887 | atexit(free_shm); | |
8867c0a8 JA |
1888 | return 0; |
1889 | } | |
1890 | ||
1891 | int main(int argc, char *argv[]) | |
1892 | { | |
1893 | static unsigned long max_run[2], min_run[2], total_blocks[2]; | |
57d753e3 | 1894 | static unsigned long max_bw[2], min_bw[2]; |
8867c0a8 JA |
1895 | static unsigned long read_mb, write_mb, read_agg, write_agg; |
1896 | int i; | |
1897 | ||
1898 | if (setup_thread_area()) | |
1899 | return 1; | |
892199bd | 1900 | |
47d45203 | 1901 | if (sched_getaffinity(getpid(), sizeof(cpu_set_t), &def_thread.cpumask) == -1) { |
4240cfa1 JA |
1902 | perror("sched_getaffinity"); |
1903 | return 1; | |
1904 | } | |
1905 | ||
47d45203 JA |
1906 | /* |
1907 | * fill globals | |
1908 | */ | |
1909 | def_thread.ddir = DDIR_READ; | |
1910 | def_thread.bs = DEF_BS; | |
02983297 | 1911 | def_thread.odirect = DEF_ODIRECT; |
47d45203 | 1912 | def_thread.ratecycle = DEF_RATE_CYCLE; |
02983297 | 1913 | def_thread.sequential = DEF_SEQUENTIAL; |
47d45203 | 1914 | def_thread.timeout = DEF_TIMEOUT; |
02983297 JA |
1915 | def_thread.create_file = DEF_CREATE; |
1916 | def_thread.overwrite = DEF_OVERWRITE; | |
b95799ca | 1917 | def_thread.invalidate_cache = DEF_INVALIDATE; |
47d45203 | 1918 | |
892199bd | 1919 | i = parse_options(argc, argv); |
7dd1389e | 1920 | |
4240cfa1 JA |
1921 | if (ini_file) { |
1922 | if (parse_jobs_ini(ini_file)) | |
1923 | return 1; | |
1924 | } else | |
1925 | parse_jobs_cmd(argc, argv, i); | |
7dd1389e | 1926 | |
4240cfa1 JA |
1927 | if (!thread_number) { |
1928 | printf("Nothing to do\n"); | |
1929 | return 1; | |
1930 | } | |
7dd1389e | 1931 | |
fc24389f | 1932 | run_threads(argv); |
892199bd | 1933 | |
892199bd JA |
1934 | min_bw[0] = min_run[0] = ~0UL; |
1935 | min_bw[1] = min_run[1] = ~0UL; | |
892199bd JA |
1936 | for (i = 0; i < thread_number; i++) { |
1937 | struct thread_data *td = &threads[i]; | |
1938 | unsigned long bw = 0; | |
1939 | ||
1940 | if (td->error) | |
7dd1389e | 1941 | goto show_stat; |
892199bd JA |
1942 | |
1943 | if (td->runtime < min_run[td->ddir]) | |
1944 | min_run[td->ddir] = td->runtime; | |
1945 | if (td->runtime > max_run[td->ddir]) | |
1946 | max_run[td->ddir] = td->runtime; | |
1947 | ||
1948 | if (td->runtime) | |
4240cfa1 | 1949 | bw = (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1950 | if (bw < min_bw[td->ddir]) |
1951 | min_bw[td->ddir] = bw; | |
1952 | if (bw > max_bw[td->ddir]) | |
1953 | max_bw[td->ddir] = bw; | |
892199bd | 1954 | |
4240cfa1 | 1955 | total_blocks[td->ddir] += td->io_blocks; |
892199bd | 1956 | |
02983297 | 1957 | if (td_read(td)) { |
4240cfa1 | 1958 | read_mb += (td->bs * td->io_blocks) >> 20; |
892199bd | 1959 | if (td->runtime) |
4240cfa1 | 1960 | read_agg += (td->io_blocks * td->bs) / td->runtime; |
02983297 | 1961 | } else { |
4240cfa1 | 1962 | write_mb += (td->bs * td->io_blocks) >> 20; |
892199bd | 1963 | if (td->runtime) |
4240cfa1 | 1964 | write_agg += (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1965 | } |
1966 | ||
7dd1389e | 1967 | show_stat: |
892199bd JA |
1968 | show_thread_status(td); |
1969 | } | |
1970 | ||
57d753e3 | 1971 | printf("\nRun status:\n"); |
892199bd | 1972 | if (max_run[DDIR_READ]) |
57d753e3 | 1973 | printf(" READ: io=%luMiB, aggrb=%lu, minb=%lu, maxb=%lu, mint=%lumsec, maxt=%lumsec\n", read_mb, read_agg, min_bw[0], max_bw[0], min_run[0], max_run[0]); |
892199bd | 1974 | if (max_run[DDIR_WRITE]) |
57d753e3 | 1975 | printf(" WRITE: io=%luMiB, aggrb=%lu, minb=%lu, maxb=%lu, mint=%lumsec, maxt=%lumsec\n", write_mb, write_agg, min_bw[1], max_bw[1], min_run[1], max_run[1]); |
fc24389f | 1976 | |
892199bd JA |
1977 | return 0; |
1978 | } |