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> |
892199bd JA |
31 | #include <sys/time.h> |
32 | #include <sys/types.h> | |
33 | #include <sys/stat.h> | |
34 | #include <sys/wait.h> | |
35 | #include <semaphore.h> | |
36 | #include <sys/ipc.h> | |
37 | #include <sys/shm.h> | |
38 | #include <asm/unistd.h> | |
39 | ||
4240cfa1 JA |
40 | #define MAX_JOBS (1024) |
41 | ||
892199bd JA |
42 | /* |
43 | * assume we don't have _get either, if _set isn't defined | |
44 | */ | |
45 | #ifndef __NR_ioprio_set | |
46 | ||
47 | #if defined(__i386__) | |
48 | #define __NR_ioprio_set 289 | |
49 | #define __NR_ioprio_get 290 | |
50 | #elif defined(__powerpc__) || defined(__powerpc64__) | |
51 | #define __NR_ioprio_set 273 | |
52 | #define __NR_ioprio_get 274 | |
53 | #elif defined(__x86_64__) | |
54 | #define __NR_ioprio_set 251 | |
55 | #define __NR_ioprio_get 252 | |
56 | #elif defined(__ia64__) | |
57 | #define __NR_ioprio_set 1274 | |
58 | #define __NR_ioprio_get 1275 | |
59 | #elif defined(__alpha__) | |
60 | #define __NR_ioprio_set 442 | |
61 | #define __NR_ioprio_get 443 | |
62 | #elif defined(__s390x__) || defined(__s390__) | |
63 | #define __NR_ioprio_set 282 | |
64 | #define __NR_ioprio_get 283 | |
65 | #else | |
66 | #error "Unsupported arch" | |
67 | #endif | |
68 | ||
69 | #endif | |
70 | ||
71 | static int ioprio_set(int which, int who, int ioprio) | |
72 | { | |
73 | return syscall(__NR_ioprio_set, which, who, ioprio); | |
74 | } | |
75 | ||
76 | enum { | |
77 | IOPRIO_WHO_PROCESS = 1, | |
78 | IOPRIO_WHO_PGRP, | |
79 | IOPRIO_WHO_USER, | |
80 | }; | |
81 | ||
82 | #define IOPRIO_CLASS_SHIFT 13 | |
83 | ||
892199bd JA |
84 | #define MASK (4095) |
85 | ||
4240cfa1 JA |
86 | #define DEF_BS (4096) |
87 | #define DEF_TIMEOUT (30) | |
88 | #define DEF_RATE_CYCLE (1000) | |
89 | #define DEF_ODIRECT (1) | |
90 | #define DEF_SEQUENTIAL (1) | |
91 | #define DEF_WRITESTAT (0) | |
92 | #define DEF_RAND_REPEAT (1) | |
93 | ||
94 | #define ALIGN(buf) (char *) (((unsigned long) (buf) + MASK) & ~(MASK)) | |
892199bd | 95 | |
4240cfa1 JA |
96 | static int sequential = DEF_SEQUENTIAL; |
97 | static int write_stat = DEF_WRITESTAT; | |
98 | static int repeatable = DEF_RAND_REPEAT; | |
99 | static int timeout = DEF_TIMEOUT; | |
100 | static int odirect = DEF_ODIRECT; | |
101 | static int global_bs = DEF_BS; | |
02bdd9ba | 102 | static int rate_quit = 1; |
892199bd | 103 | |
892199bd | 104 | static int thread_number; |
7dd1389e | 105 | static char *ini_file; |
892199bd JA |
106 | |
107 | static int shm_id; | |
108 | ||
18e0b78c JA |
109 | static cpu_set_t def_cpumask; |
110 | ||
4240cfa1 JA |
111 | enum { |
112 | DDIR_READ = 0, | |
113 | DDIR_WRITE, | |
114 | }; | |
892199bd | 115 | |
02bdd9ba JA |
116 | /* |
117 | * thread life cycle | |
118 | */ | |
119 | enum { | |
120 | TD_NOT_CREATED = 0, | |
121 | TD_CREATED, | |
122 | TD_STARTED, | |
123 | TD_EXITED, | |
124 | TD_REAPED, | |
125 | }; | |
126 | ||
892199bd JA |
127 | struct thread_data { |
128 | char file_name[256]; | |
129 | int thread_number; | |
130 | int error; | |
131 | int fd; | |
132 | int stat_fd; | |
133 | pid_t pid; | |
4240cfa1 | 134 | volatile int terminate; |
02bdd9ba | 135 | volatile int runstate; |
f737299d JA |
136 | unsigned int ddir; |
137 | unsigned int ioprio; | |
138 | unsigned int sequential; | |
139 | unsigned int bs; | |
140 | unsigned int odirect; | |
141 | unsigned int delay_sleep; | |
4240cfa1 | 142 | unsigned int fsync_blocks; |
fc24389f | 143 | unsigned int start_delay; |
18e0b78c | 144 | cpu_set_t cpumask; |
86184d14 | 145 | |
7dd1389e | 146 | unsigned int rate; |
4240cfa1 JA |
147 | unsigned int ratemin; |
148 | unsigned int ratecycle; | |
149 | unsigned long rate_usec_cycle; | |
150 | long rate_pending_usleep; | |
151 | unsigned long rate_blocks; | |
152 | struct timeval lastrate; | |
86184d14 | 153 | |
892199bd JA |
154 | unsigned long max_latency; /* msec */ |
155 | unsigned long min_latency; /* msec */ | |
156 | unsigned long runtime; /* sec */ | |
157 | unsigned long blocks; | |
4240cfa1 | 158 | unsigned long io_blocks; |
892199bd JA |
159 | unsigned long last_block; |
160 | sem_t mutex; | |
892199bd JA |
161 | struct drand48_data random_state; |
162 | ||
163 | /* | |
164 | * bandwidth stat | |
165 | */ | |
166 | unsigned long stat_time; | |
167 | unsigned long stat_time_last; | |
168 | unsigned long stat_blocks_last; | |
4240cfa1 JA |
169 | |
170 | struct timeval start; | |
892199bd JA |
171 | }; |
172 | ||
173 | static struct thread_data *threads; | |
892199bd JA |
174 | |
175 | static sem_t startup_sem; | |
176 | ||
02bdd9ba JA |
177 | static volatile int do_quit; |
178 | ||
5c24b2c4 | 179 | static void sig_handler(int sig) |
892199bd JA |
180 | { |
181 | int i; | |
182 | ||
183 | for (i = 0; i < thread_number; i++) { | |
184 | struct thread_data *td = &threads[i]; | |
185 | ||
186 | td->terminate = 1; | |
187 | } | |
188 | } | |
189 | ||
02bdd9ba JA |
190 | static void terminate_threads(void) |
191 | { | |
192 | do_quit = 1; | |
193 | sig_handler(0); | |
194 | } | |
195 | ||
5c24b2c4 | 196 | static int init_random_state(struct thread_data *td) |
892199bd JA |
197 | { |
198 | unsigned long seed = 123; | |
199 | ||
200 | if (td->sequential) | |
201 | return 0; | |
202 | ||
203 | if (!repeatable) { | |
204 | int fd = open("/dev/random", O_RDONLY); | |
205 | ||
206 | if (fd == -1) { | |
207 | td->error = errno; | |
208 | return 1; | |
209 | } | |
210 | ||
7dd1389e | 211 | if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) { |
892199bd JA |
212 | td->error = EIO; |
213 | close(fd); | |
214 | return 1; | |
215 | } | |
216 | ||
217 | close(fd); | |
218 | } | |
219 | ||
220 | srand48_r(seed, &td->random_state); | |
221 | return 0; | |
222 | } | |
223 | ||
5c24b2c4 | 224 | static void shutdown_stat_file(struct thread_data *td) |
892199bd JA |
225 | { |
226 | if (td->stat_fd != -1) { | |
227 | fsync(td->stat_fd); | |
228 | close(td->stat_fd); | |
229 | } | |
230 | } | |
231 | ||
5c24b2c4 | 232 | static int init_stat_file(struct thread_data *td) |
892199bd | 233 | { |
4240cfa1 | 234 | char n[256]; |
892199bd JA |
235 | |
236 | if (!write_stat) | |
237 | return 0; | |
238 | ||
892199bd JA |
239 | sprintf(n, "%s.stat", td->file_name); |
240 | td->stat_fd = open(n, O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
241 | if (td->stat_fd == -1) { | |
892199bd JA |
242 | td->error = errno; |
243 | return 1; | |
244 | } | |
245 | ||
892199bd JA |
246 | return 0; |
247 | } | |
248 | ||
5c24b2c4 | 249 | static unsigned long utime_since(struct timeval *s, struct timeval *e) |
892199bd JA |
250 | { |
251 | double sec, usec; | |
252 | ||
253 | sec = e->tv_sec - s->tv_sec; | |
254 | usec = e->tv_usec - s->tv_usec; | |
255 | if (sec > 0 && usec < 0) { | |
256 | sec--; | |
257 | usec += 1000000; | |
258 | } | |
259 | ||
260 | sec *= (double) 1000000; | |
261 | ||
262 | return sec + usec; | |
263 | } | |
264 | ||
5c24b2c4 | 265 | static unsigned long mtime_since(struct timeval *s, struct timeval *e) |
892199bd JA |
266 | { |
267 | double sec, usec; | |
268 | ||
269 | sec = e->tv_sec - s->tv_sec; | |
270 | usec = e->tv_usec - s->tv_usec; | |
271 | if (sec > 0 && usec < 0) { | |
272 | sec--; | |
273 | usec += 1000000; | |
274 | } | |
275 | ||
276 | sec *= (double) 1000; | |
277 | usec /= (double) 1000; | |
278 | ||
279 | return sec + usec; | |
280 | } | |
281 | ||
5c24b2c4 | 282 | static unsigned long get_next_offset(struct thread_data *td) |
892199bd JA |
283 | { |
284 | unsigned long b; | |
285 | long r; | |
286 | ||
287 | if (!td->sequential) { | |
288 | lrand48_r(&td->random_state, &r); | |
289 | b = (1+(double) (td->blocks-1) * r / (RAND_MAX+1.0)); | |
290 | } else { | |
291 | b = td->last_block; | |
292 | td->last_block++; | |
293 | } | |
294 | ||
295 | return b * td->bs; | |
296 | } | |
297 | ||
5c24b2c4 | 298 | static void add_stat_sample(struct thread_data *td, unsigned long msec) |
892199bd JA |
299 | { |
300 | char sample[256]; | |
301 | ||
302 | if (!td->stat_fd) | |
303 | return; | |
304 | ||
305 | #if 0 | |
4240cfa1 | 306 | sprintf(sample, "%lu, %lu\n", td->io_blocks, msec); |
892199bd JA |
307 | write(td->stat_fd, sample, strlen(sample)); |
308 | #else | |
309 | td->stat_time += msec; | |
310 | td->stat_time_last += msec; | |
311 | td->stat_blocks_last++; | |
312 | ||
313 | if (td->stat_time_last >= 500) { | |
314 | unsigned long rate = td->stat_blocks_last * td->bs / (td->stat_time_last); | |
315 | ||
316 | td->stat_time_last = 0; | |
317 | td->stat_blocks_last = 0; | |
318 | sprintf(sample, "%lu, %lu\n", td->stat_time, rate); | |
4240cfa1 | 319 | //sprintf(sample, "%lu, %lu\n", td->io_blocks, msec); |
892199bd JA |
320 | write(td->stat_fd, sample, strlen(sample)); |
321 | } | |
322 | #endif | |
323 | } | |
324 | ||
5c24b2c4 | 325 | static void usec_sleep(int usec) |
892199bd | 326 | { |
86184d14 JA |
327 | struct timespec req = { .tv_sec = 0, .tv_nsec = usec * 1000 }; |
328 | struct timespec rem; | |
892199bd JA |
329 | |
330 | do { | |
86184d14 JA |
331 | rem.tv_sec = rem.tv_nsec = 0; |
332 | nanosleep(&req, &rem); | |
333 | if (!rem.tv_nsec) | |
892199bd | 334 | break; |
86184d14 JA |
335 | |
336 | req.tv_nsec = rem.tv_nsec; | |
892199bd JA |
337 | } while (1); |
338 | } | |
339 | ||
5c24b2c4 | 340 | static void rate_throttle(struct thread_data *td, unsigned long time_spent) |
86184d14 | 341 | { |
4240cfa1 JA |
342 | if (!td->rate) |
343 | return; | |
344 | ||
86184d14 JA |
345 | if (time_spent < td->rate_usec_cycle) { |
346 | unsigned long s = td->rate_usec_cycle - time_spent; | |
347 | ||
348 | td->rate_pending_usleep += s; | |
fad86e6a | 349 | if (td->rate_pending_usleep >= 100000) { |
86184d14 JA |
350 | usec_sleep(td->rate_pending_usleep); |
351 | td->rate_pending_usleep = 0; | |
352 | } | |
4240cfa1 | 353 | } else { |
42b2b9fe JA |
354 | long overtime = time_spent - td->rate_usec_cycle; |
355 | ||
4240cfa1 JA |
356 | td->rate_pending_usleep -= overtime; |
357 | } | |
358 | } | |
359 | ||
5c24b2c4 | 360 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
4240cfa1 JA |
361 | { |
362 | unsigned long spent = mtime_since(&td->start, now); | |
363 | unsigned long rate; | |
364 | ||
365 | /* | |
366 | * allow a 2 second settle period in the beginning | |
367 | */ | |
368 | if (spent < 2000) | |
369 | return 0; | |
370 | ||
371 | /* | |
372 | * if rate blocks is set, sample is running | |
373 | */ | |
374 | if (td->rate_blocks) { | |
375 | spent = mtime_since(&td->lastrate, now); | |
376 | if (spent < td->ratecycle) | |
377 | return 0; | |
378 | ||
379 | rate = ((td->io_blocks - td->rate_blocks) * td->bs) / spent; | |
380 | if (rate < td->ratemin) { | |
381 | printf("Client%d: min rate %d not met, got %ldKiB/sec\n", td->thread_number, td->ratemin, rate); | |
02bdd9ba JA |
382 | if (rate_quit) |
383 | terminate_threads(); | |
4240cfa1 JA |
384 | return 1; |
385 | } | |
86184d14 | 386 | } |
4240cfa1 JA |
387 | |
388 | td->rate_blocks = td->io_blocks; | |
389 | memcpy(&td->lastrate, now, sizeof(*now)); | |
390 | return 0; | |
86184d14 JA |
391 | } |
392 | ||
4240cfa1 JA |
393 | #define should_fsync(td) ((td)->ddir == DDIR_WRITE && !(td)->odirect) |
394 | ||
5c24b2c4 | 395 | static void do_thread_io(struct thread_data *td) |
892199bd | 396 | { |
4240cfa1 | 397 | struct timeval s, e; |
892199bd | 398 | char *buffer, *ptr; |
86184d14 | 399 | unsigned long blocks, msec, usec; |
892199bd | 400 | |
4240cfa1 JA |
401 | ptr = malloc(td->bs + MASK); |
402 | buffer = ALIGN(ptr); | |
892199bd | 403 | |
4240cfa1 JA |
404 | gettimeofday(&td->start, NULL); |
405 | ||
406 | if (td->ratemin) | |
407 | memcpy(&td->lastrate, &td->start, sizeof(td->start)); | |
892199bd JA |
408 | |
409 | for (blocks = 0; blocks < td->blocks; blocks++) { | |
410 | off_t offset = get_next_offset(td); | |
411 | int ret; | |
412 | ||
413 | if (td->terminate) | |
414 | break; | |
415 | ||
416 | if (lseek(td->fd, offset, SEEK_SET) == -1) { | |
417 | td->error = errno; | |
418 | break; | |
419 | } | |
420 | ||
421 | if (td->delay_sleep) | |
86184d14 | 422 | usec_sleep(td->delay_sleep); |
892199bd JA |
423 | |
424 | gettimeofday(&s, NULL); | |
425 | ||
426 | if (td->ddir == DDIR_READ) | |
427 | ret = read(td->fd, buffer, td->bs); | |
428 | else | |
429 | ret = write(td->fd, buffer, td->bs); | |
430 | ||
f737299d | 431 | if (ret < (int) td->bs) { |
892199bd JA |
432 | if (ret == -1) |
433 | td->error = errno; | |
434 | break; | |
435 | } | |
436 | ||
4240cfa1 JA |
437 | td->io_blocks++; |
438 | ||
439 | if (should_fsync(td) && td->fsync_blocks && | |
440 | (td->io_blocks % td->fsync_blocks) == 0) | |
441 | fsync(td->fd); | |
442 | ||
86184d14 JA |
443 | gettimeofday(&e, NULL); |
444 | ||
445 | usec = utime_since(&s, &e); | |
86184d14 | 446 | |
4240cfa1 | 447 | rate_throttle(td, usec); |
892199bd | 448 | |
4240cfa1 JA |
449 | if (check_min_rate(td, &e)) { |
450 | td->error = ENODATA; | |
451 | break; | |
452 | } | |
892199bd | 453 | |
4240cfa1 JA |
454 | msec = usec / 1000; |
455 | add_stat_sample(td, msec); | |
892199bd JA |
456 | |
457 | if (msec < td->min_latency) | |
458 | td->min_latency = msec; | |
459 | if (msec > td->max_latency) | |
460 | td->max_latency = msec; | |
461 | } | |
462 | ||
4240cfa1 | 463 | if (should_fsync(td)) |
892199bd JA |
464 | fsync(td->fd); |
465 | ||
466 | gettimeofday(&e, NULL); | |
4240cfa1 | 467 | td->runtime = mtime_since(&td->start, &e); |
892199bd JA |
468 | |
469 | free(ptr); | |
470 | } | |
471 | ||
5c24b2c4 | 472 | static void *thread_main(int shm_id, int offset, char *argv[]) |
892199bd JA |
473 | { |
474 | struct thread_data *td; | |
475 | void *data; | |
4240cfa1 | 476 | struct stat st; |
892199bd JA |
477 | int ret = 1, flags; |
478 | ||
479 | data = shmat(shm_id, NULL, 0); | |
480 | td = data + offset * sizeof(struct thread_data); | |
481 | td->pid = getpid(); | |
482 | ||
18e0b78c JA |
483 | td->fd = -1; |
484 | ||
485 | if (sched_setaffinity(td->pid, sizeof(td->cpumask), &td->cpumask) == -1) { | |
486 | td->error = errno; | |
487 | goto err; | |
488 | } | |
489 | ||
892199bd JA |
490 | printf("Thread (%s) (pid=%u) (f=%s) started\n", td->ddir == DDIR_READ ? "read" : "write", td->pid, td->file_name); |
491 | fflush(stdout); | |
492 | ||
4240cfa1 | 493 | sprintf(argv[0], "fio%d", offset); |
892199bd | 494 | |
7dd1389e | 495 | flags = 0; |
892199bd JA |
496 | if (td->odirect) |
497 | flags |= O_DIRECT; | |
498 | ||
7dd1389e JA |
499 | if (td->ddir == DDIR_READ) |
500 | td->fd = open(td->file_name, flags | O_RDONLY); | |
501 | else | |
502 | td->fd = open(td->file_name, flags | O_WRONLY | O_CREAT | O_TRUNC, 0644); | |
503 | ||
892199bd JA |
504 | if (td->fd == -1) { |
505 | td->error = errno; | |
506 | goto err; | |
507 | } | |
508 | ||
509 | if (init_random_state(td)) | |
510 | goto out; | |
511 | if (init_stat_file(td)) | |
512 | goto out; | |
513 | ||
514 | if (td->ddir == DDIR_READ) { | |
4240cfa1 | 515 | if (fstat(td->fd, &st) == -1) { |
892199bd JA |
516 | td->error = errno; |
517 | goto out; | |
518 | } | |
519 | ||
4240cfa1 | 520 | td->blocks = st.st_size / td->bs; |
892199bd JA |
521 | if (!td->blocks) { |
522 | td->error = EINVAL; | |
523 | goto out; | |
524 | } | |
525 | } else | |
526 | td->blocks = 1024 * 1024 * 1024 / td->bs; | |
527 | ||
f737299d | 528 | if (td->ioprio) { |
892199bd JA |
529 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
530 | td->error = errno; | |
531 | goto out; | |
532 | } | |
533 | } | |
534 | ||
535 | sem_post(&startup_sem); | |
536 | sem_wait(&td->mutex); | |
537 | do_thread_io(td); | |
538 | ret = 0; | |
539 | ||
540 | out: | |
892199bd JA |
541 | shutdown_stat_file(td); |
542 | err: | |
18e0b78c JA |
543 | if (td->fd != -1) |
544 | close(td->fd); | |
892199bd JA |
545 | if (ret) |
546 | sem_post(&startup_sem); | |
02bdd9ba JA |
547 | |
548 | td->runstate = TD_EXITED; | |
4240cfa1 | 549 | shmdt(data); |
892199bd JA |
550 | return NULL; |
551 | } | |
552 | ||
5c24b2c4 | 553 | static void free_shm(void) |
892199bd JA |
554 | { |
555 | shmdt(threads); | |
556 | } | |
557 | ||
5c24b2c4 | 558 | static void show_thread_status(struct thread_data *td) |
892199bd JA |
559 | { |
560 | int prio, prio_class; | |
561 | unsigned long bw = 0; | |
562 | ||
563 | if (td->runtime) | |
4240cfa1 | 564 | bw = (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
565 | |
566 | prio = td->ioprio & 0xff; | |
567 | prio_class = td->ioprio >> IOPRIO_CLASS_SHIFT; | |
568 | ||
4240cfa1 | 569 | printf("thread%d (%s): err=%2d, prio=%1d/%1d maxl=%5lumsec, io=%6luMiB, bw=%6luKiB/sec\n", td->thread_number, td->ddir == DDIR_READ ? " read": "write", td->error, prio_class, prio, td->max_latency, td->io_blocks * td->bs >> 20, bw); |
892199bd JA |
570 | } |
571 | ||
5c24b2c4 | 572 | static int setup_rate(struct thread_data *td) |
86184d14 | 573 | { |
4240cfa1 JA |
574 | int nr_reads_per_sec; |
575 | ||
576 | if (!td->rate) | |
577 | return 0; | |
578 | ||
579 | if (td->rate < td->ratemin) { | |
580 | fprintf(stderr, "min rate larger than nominal rate\n"); | |
581 | return -1; | |
582 | } | |
86184d14 | 583 | |
4240cfa1 | 584 | nr_reads_per_sec = td->rate * 1024 / td->bs; |
86184d14 JA |
585 | td->rate_usec_cycle = 1000000 / nr_reads_per_sec; |
586 | td->rate_pending_usleep = 0; | |
4240cfa1 | 587 | return 0; |
86184d14 JA |
588 | } |
589 | ||
5c24b2c4 | 590 | static struct thread_data *get_new_job(void) |
892199bd | 591 | { |
4240cfa1 JA |
592 | struct thread_data *td; |
593 | ||
594 | if (thread_number >= MAX_JOBS) | |
595 | return NULL; | |
596 | ||
597 | td = &threads[thread_number++]; | |
fc24389f | 598 | memset(td, 0, sizeof(*td)); |
892199bd | 599 | |
86184d14 | 600 | td->thread_number = thread_number; |
f737299d JA |
601 | td->ddir = DDIR_READ; |
602 | td->bs = global_bs; | |
603 | td->odirect = 1; | |
604 | td->delay_sleep = 0; | |
605 | td->rate = 0; | |
4240cfa1 | 606 | td->ratecycle = DEF_RATE_CYCLE; |
f737299d JA |
607 | td->sequential = sequential; |
608 | td->ioprio = 0; | |
609 | memcpy(&td->cpumask, &def_cpumask, sizeof(td->cpumask)); | |
610 | ||
611 | return td; | |
612 | } | |
613 | ||
4240cfa1 JA |
614 | static void put_job(struct thread_data *td) |
615 | { | |
616 | memset(&threads[td->thread_number - 1], 0, sizeof(*td)); | |
617 | thread_number--; | |
618 | } | |
619 | ||
5c24b2c4 JA |
620 | static int add_job(struct thread_data *td, const char *filename, int prioclass, |
621 | int prio) | |
f737299d JA |
622 | { |
623 | strcpy(td->file_name, filename); | |
892199bd | 624 | td->stat_fd = -1; |
4240cfa1 | 625 | sem_init(&td->mutex, 1, 0); |
892199bd | 626 | td->min_latency = 10000000; |
f737299d JA |
627 | td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio; |
628 | ||
4240cfa1 JA |
629 | if (setup_rate(td)) |
630 | return -1; | |
f737299d JA |
631 | |
632 | printf("Client%d: file=%s, rw=%d, prio=%d, seq=%d, odir=%d, bs=%d, rate=%d\n", td->thread_number, filename, td->ddir, td->ioprio, td->sequential, td->odirect, td->bs, td->rate); | |
4240cfa1 | 633 | return 0; |
892199bd JA |
634 | } |
635 | ||
18e0b78c JA |
636 | static void fill_cpu_mask(cpu_set_t cpumask, int cpu) |
637 | { | |
f737299d | 638 | unsigned int i; |
18e0b78c JA |
639 | |
640 | CPU_ZERO(&cpumask); | |
641 | ||
642 | for (i = 0; i < sizeof(int) * 8; i++) { | |
643 | if ((1 << i) & cpu) | |
644 | CPU_SET(i, &cpumask); | |
645 | } | |
646 | } | |
647 | ||
5c24b2c4 | 648 | static void fill_option(const char *input, char *output) |
892199bd JA |
649 | { |
650 | int i; | |
651 | ||
652 | i = 0; | |
653 | while (input[i] != ',' && input[i] != '}' && input[i] != '\0') { | |
654 | output[i] = input[i]; | |
655 | i++; | |
656 | } | |
657 | ||
658 | output[i] = '\0'; | |
659 | } | |
660 | ||
661 | /* | |
662 | * job key words: | |
663 | * | |
664 | * file= | |
665 | * bs= | |
666 | * rw= | |
667 | * direct= | |
668 | */ | |
5c24b2c4 | 669 | static void parse_jobs_cmd(int argc, char *argv[], int index) |
892199bd | 670 | { |
f737299d JA |
671 | struct thread_data *td; |
672 | unsigned int prio, prioclass, cpu; | |
892199bd JA |
673 | char *string, *filename, *p, *c; |
674 | int i; | |
675 | ||
676 | string = malloc(256); | |
677 | filename = malloc(256); | |
678 | ||
679 | for (i = index; i < argc; i++) { | |
680 | p = argv[i]; | |
681 | ||
682 | c = strpbrk(p, "{"); | |
683 | if (!c) | |
684 | break; | |
685 | ||
686 | filename[0] = 0; | |
4240cfa1 | 687 | |
f737299d | 688 | td = get_new_job(); |
4240cfa1 JA |
689 | if (!td) |
690 | break; | |
f737299d | 691 | |
892199bd | 692 | prioclass = 2; |
f737299d | 693 | prio = 4; |
892199bd JA |
694 | |
695 | c = strstr(p, "rw="); | |
696 | if (c) { | |
697 | c += 3; | |
698 | if (*c == '0') | |
f737299d | 699 | td->ddir = DDIR_READ; |
892199bd | 700 | else |
f737299d | 701 | td->ddir = DDIR_WRITE; |
892199bd JA |
702 | } |
703 | ||
704 | c = strstr(p, "prio="); | |
705 | if (c) { | |
706 | c += 5; | |
707 | prio = *c - '0'; | |
708 | } | |
709 | ||
710 | c = strstr(p, "prioclass="); | |
711 | if (c) { | |
712 | c += 10; | |
713 | prioclass = *c - '0'; | |
714 | } | |
715 | ||
716 | c = strstr(p, "file="); | |
717 | if (c) { | |
718 | c += 5; | |
719 | fill_option(c, filename); | |
720 | } | |
721 | ||
722 | c = strstr(p, "bs="); | |
723 | if (c) { | |
724 | c += 3; | |
725 | fill_option(c, string); | |
f737299d JA |
726 | td->bs = strtoul(string, NULL, 10); |
727 | td->bs <<= 10; | |
892199bd JA |
728 | } |
729 | ||
730 | c = strstr(p, "direct="); | |
731 | if (c) { | |
732 | c += 7; | |
733 | if (*c != '0') | |
f737299d | 734 | td->odirect = 1; |
892199bd | 735 | else |
f737299d | 736 | td->odirect = 0; |
892199bd JA |
737 | } |
738 | ||
739 | c = strstr(p, "delay="); | |
740 | if (c) { | |
741 | c += 6; | |
742 | fill_option(c, string); | |
f737299d | 743 | td->delay_sleep = strtoul(string, NULL, 10); |
892199bd JA |
744 | } |
745 | ||
86184d14 JA |
746 | c = strstr(p, "rate="); |
747 | if (c) { | |
748 | c += 5; | |
749 | fill_option(c, string); | |
f737299d | 750 | td->rate = strtoul(string, NULL, 10); |
86184d14 JA |
751 | } |
752 | ||
4240cfa1 JA |
753 | c = strstr(p, "ratemin="); |
754 | if (c) { | |
755 | c += 8; | |
756 | fill_option(c, string); | |
757 | td->ratemin = strtoul(string, NULL, 10); | |
758 | } | |
759 | ||
760 | c = strstr(p, "ratecycle="); | |
761 | if (c) { | |
762 | c += 10; | |
763 | fill_option(c, string); | |
764 | td->ratecycle = strtoul(string, NULL, 10); | |
765 | } | |
766 | ||
18e0b78c JA |
767 | c = strstr(p, "cpumask="); |
768 | if (c) { | |
769 | c += 8; | |
770 | fill_option(c, string); | |
771 | cpu = strtoul(string, NULL, 10); | |
f737299d | 772 | fill_cpu_mask(td->cpumask, cpu); |
18e0b78c JA |
773 | } |
774 | ||
4240cfa1 JA |
775 | c = strstr(p, "fsync="); |
776 | if (c) { | |
777 | c += 6; | |
778 | fill_option(c, string); | |
779 | td->fsync_blocks = strtoul(string, NULL, 10); | |
780 | } | |
18e0b78c | 781 | |
fc24389f JA |
782 | c = strstr(p, "startdelay="); |
783 | if (c) { | |
784 | c += 11; | |
785 | fill_option(c, string); | |
786 | td->start_delay = strtoul(string, NULL, 10); | |
787 | } | |
788 | ||
892199bd JA |
789 | c = strstr(p, "random"); |
790 | if (c) | |
f737299d | 791 | td->sequential = 0; |
892199bd JA |
792 | c = strstr(p, "sequential"); |
793 | if (c) | |
f737299d | 794 | td->sequential = 1; |
892199bd | 795 | |
4240cfa1 JA |
796 | if (add_job(td, filename, prioclass, prio)) |
797 | put_job(td); | |
892199bd JA |
798 | } |
799 | ||
7dd1389e JA |
800 | free(string); |
801 | free(filename); | |
892199bd JA |
802 | } |
803 | ||
5c24b2c4 | 804 | static int check_int(char *p, char *name, unsigned int *val) |
7dd1389e JA |
805 | { |
806 | char str[128]; | |
807 | ||
808 | sprintf(str, "%s=%%d", name); | |
809 | if (sscanf(p, str, val) == 1) | |
810 | return 0; | |
811 | ||
812 | sprintf(str, "%s = %%d", name); | |
813 | if (sscanf(p, str, val) == 1) | |
814 | return 0; | |
815 | ||
816 | return 1; | |
817 | } | |
818 | ||
5c24b2c4 | 819 | static int is_empty(char *line) |
7dd1389e JA |
820 | { |
821 | unsigned int i; | |
822 | ||
823 | for (i = 0; i < strlen(line); i++) | |
824 | if (!isspace(line[i]) && !iscntrl(line[i])) | |
825 | return 0; | |
826 | ||
827 | return 1; | |
828 | } | |
829 | ||
5c24b2c4 | 830 | static int parse_jobs_ini(char *file) |
7dd1389e | 831 | { |
4240cfa1 | 832 | unsigned int prioclass, prio, cpu; |
f737299d | 833 | struct thread_data *td; |
7dd1389e JA |
834 | char *string, *name; |
835 | fpos_t off; | |
836 | FILE *f; | |
837 | char *p; | |
838 | ||
839 | f = fopen(file, "r"); | |
840 | if (!f) { | |
841 | perror("fopen"); | |
4240cfa1 | 842 | return 1; |
7dd1389e JA |
843 | } |
844 | ||
845 | string = malloc(4096); | |
846 | name = malloc(256); | |
847 | ||
7dd1389e JA |
848 | while ((p = fgets(string, 4096, f)) != NULL) { |
849 | if (sscanf(p, "[%s]", name) != 1) | |
850 | continue; | |
851 | ||
852 | name[strlen(name) - 1] = '\0'; | |
853 | ||
f737299d | 854 | td = get_new_job(); |
4240cfa1 JA |
855 | if (!td) |
856 | break; | |
f737299d | 857 | |
7dd1389e | 858 | prioclass = 2; |
f737299d | 859 | prio = 4; |
7dd1389e JA |
860 | |
861 | fgetpos(f, &off); | |
862 | while ((p = fgets(string, 4096, f)) != NULL) { | |
863 | if (is_empty(p)) | |
864 | break; | |
f737299d JA |
865 | if (!check_int(p, "bs", &td->bs)) { |
866 | td->bs <<= 10; | |
7dd1389e JA |
867 | fgetpos(f, &off); |
868 | continue; | |
869 | } | |
f737299d | 870 | if (!check_int(p, "rw", &td->ddir)) { |
7dd1389e JA |
871 | fgetpos(f, &off); |
872 | continue; | |
873 | } | |
874 | if (!check_int(p, "prio", &prio)) { | |
875 | fgetpos(f, &off); | |
876 | continue; | |
877 | } | |
878 | if (!check_int(p, "prioclass", &prioclass)) { | |
879 | fgetpos(f, &off); | |
880 | continue; | |
881 | } | |
f737299d | 882 | if (!check_int(p, "direct", &td->odirect)) { |
7dd1389e JA |
883 | fgetpos(f, &off); |
884 | continue; | |
885 | } | |
f737299d | 886 | if (!check_int(p, "rate", &td->rate)) { |
7dd1389e JA |
887 | fgetpos(f, &off); |
888 | continue; | |
889 | } | |
4240cfa1 JA |
890 | if (!check_int(p, "ratemin", &td->ratemin)) { |
891 | fgetpos(f, &off); | |
892 | continue; | |
893 | } | |
894 | if (!check_int(p, "ratecycle", &td->ratecycle)) { | |
895 | fgetpos(f, &off); | |
896 | continue; | |
897 | } | |
f737299d | 898 | if (!check_int(p, "delay", &td->delay_sleep)) { |
7dd1389e JA |
899 | fgetpos(f, &off); |
900 | continue; | |
901 | } | |
18e0b78c | 902 | if (!check_int(p, "cpumask", &cpu)) { |
f737299d | 903 | fill_cpu_mask(td->cpumask, cpu); |
18e0b78c JA |
904 | fgetpos(f, &off); |
905 | continue; | |
906 | } | |
4240cfa1 JA |
907 | if (!check_int(p, "fsync", &td->fsync_blocks)) { |
908 | fgetpos(f, &off); | |
909 | continue; | |
910 | } | |
fc24389f JA |
911 | if (!check_int(p, "startdelay", &td->start_delay)) { |
912 | fgetpos(f, &off); | |
913 | continue; | |
914 | } | |
7dd1389e | 915 | if (!strcmp(p, "sequential")) { |
f737299d | 916 | td->sequential = 1; |
7dd1389e JA |
917 | fgetpos(f, &off); |
918 | continue; | |
919 | } | |
920 | if (!strcmp(p, "random")) { | |
f737299d | 921 | td->sequential = 0; |
7dd1389e JA |
922 | fgetpos(f, &off); |
923 | continue; | |
924 | } | |
925 | } | |
926 | fsetpos(f, &off); | |
927 | ||
4240cfa1 JA |
928 | if (add_job(td, name, prioclass, prio)) |
929 | put_job(td); | |
7dd1389e JA |
930 | } |
931 | ||
932 | free(string); | |
933 | free(name); | |
4240cfa1 | 934 | return 0; |
7dd1389e JA |
935 | } |
936 | ||
5c24b2c4 | 937 | static int parse_options(int argc, char *argv[]) |
892199bd | 938 | { |
01c4d8de | 939 | int i; |
892199bd JA |
940 | |
941 | for (i = 1; i < argc; i++) { | |
942 | char *parm = argv[i]; | |
943 | ||
944 | if (parm[0] != '-') | |
945 | break; | |
946 | ||
947 | parm++; | |
948 | switch (*parm) { | |
949 | case 's': | |
950 | parm++; | |
951 | sequential = !!atoi(parm); | |
952 | break; | |
953 | case 'b': | |
954 | parm++; | |
955 | global_bs = atoi(parm); | |
956 | global_bs <<= 10; | |
4240cfa1 JA |
957 | if (!global_bs) { |
958 | printf("bad block size\n"); | |
959 | global_bs = DEF_BS; | |
960 | } | |
892199bd JA |
961 | break; |
962 | case 't': | |
963 | parm++; | |
964 | timeout = atoi(parm); | |
965 | break; | |
966 | case 'w': | |
967 | parm++; | |
968 | write_stat = !!atoi(parm); | |
969 | break; | |
970 | case 'r': | |
971 | parm++; | |
972 | repeatable = !!atoi(parm); | |
973 | break; | |
02bdd9ba JA |
974 | case 'R': |
975 | parm++; | |
976 | rate_quit = !!atoi(parm); | |
977 | break; | |
892199bd JA |
978 | case 'o': |
979 | parm++; | |
980 | odirect = !!atoi(parm); | |
981 | break; | |
7dd1389e JA |
982 | case 'f': |
983 | if (i + 1 >= argc) { | |
984 | printf("-f needs file as arg\n"); | |
985 | break; | |
986 | } | |
987 | ini_file = strdup(argv[i+1]); | |
988 | break; | |
892199bd | 989 | default: |
7dd1389e | 990 | printf("bad option %s\n", argv[i]); |
892199bd JA |
991 | break; |
992 | } | |
993 | } | |
994 | ||
892199bd JA |
995 | return i; |
996 | } | |
997 | ||
02bdd9ba JA |
998 | static int reap_threads(void) |
999 | { | |
1000 | int i, reaped = 0; | |
1001 | ||
1002 | for (i = 0; i < thread_number; i++) { | |
1003 | struct thread_data *td = &threads[i]; | |
1004 | ||
1005 | if (td->runstate == TD_EXITED) { | |
1006 | td->runstate = TD_REAPED; | |
1007 | waitpid(td->pid, NULL, 0); | |
1008 | reaped++; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | return reaped; | |
1013 | } | |
1014 | ||
fc24389f JA |
1015 | static void run_threads(char *argv[]) |
1016 | { | |
1017 | struct timeval genesis, now; | |
1018 | struct thread_data *td; | |
1019 | unsigned long spent; | |
02bdd9ba | 1020 | int i, todo, nr_running; |
fc24389f JA |
1021 | |
1022 | gettimeofday(&genesis, NULL); | |
1023 | ||
1024 | printf("Starting %d threads\n", thread_number); | |
1025 | fflush(stdout); | |
1026 | ||
1027 | if (timeout) { | |
1028 | signal(SIGALRM, sig_handler); | |
1029 | alarm(timeout); | |
1030 | } | |
1031 | ||
1032 | todo = thread_number; | |
02bdd9ba | 1033 | nr_running = 0; |
fc24389f | 1034 | |
02bdd9ba | 1035 | while (todo && !do_quit) { |
fc24389f JA |
1036 | for (i = 0; i < thread_number; i++) { |
1037 | td = &threads[i]; | |
1038 | ||
02bdd9ba | 1039 | if (td->runstate != TD_NOT_CREATED) |
fc24389f JA |
1040 | continue; |
1041 | ||
1042 | if (td->start_delay) { | |
1043 | gettimeofday(&now, NULL); | |
1044 | spent = mtime_since(&genesis, &now); | |
1045 | ||
1046 | if (td->start_delay * 1000 > spent) | |
1047 | continue; | |
1048 | } | |
1049 | ||
02bdd9ba | 1050 | td->runstate = TD_CREATED; |
fc24389f JA |
1051 | sem_init(&startup_sem, 1, 1); |
1052 | todo--; | |
1053 | ||
1054 | if (fork()) | |
1055 | sem_wait(&startup_sem); | |
1056 | else { | |
1057 | thread_main(shm_id, i, argv); | |
1058 | exit(0); | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | for (i = 0; i < thread_number; i++) { | |
1063 | struct thread_data *td = &threads[i]; | |
1064 | ||
02bdd9ba JA |
1065 | if (td->runstate == TD_CREATED) { |
1066 | td->runstate = TD_STARTED; | |
1067 | nr_running++; | |
fc24389f | 1068 | sem_post(&td->mutex); |
02bdd9ba | 1069 | printf("%d threads now running\n", nr_running); |
fc24389f JA |
1070 | } |
1071 | } | |
1072 | ||
02bdd9ba JA |
1073 | nr_running -= reap_threads(); |
1074 | ||
fc24389f JA |
1075 | if (todo) |
1076 | usleep(100000); | |
1077 | } | |
02bdd9ba JA |
1078 | |
1079 | while (nr_running) { | |
1080 | nr_running -= reap_threads(); | |
1081 | usleep(10000); | |
1082 | } | |
fc24389f JA |
1083 | } |
1084 | ||
892199bd JA |
1085 | int main(int argc, char *argv[]) |
1086 | { | |
1087 | static unsigned long max_run[2], min_run[2], total_blocks[2]; | |
1088 | static unsigned long max_bw[2], min_bw[2], maxl[2], minl[2]; | |
1089 | static unsigned long read_mb, write_mb, read_agg, write_agg; | |
4240cfa1 | 1090 | int i; |
18e0b78c | 1091 | |
4240cfa1 | 1092 | shm_id = shmget(0, MAX_JOBS * sizeof(struct thread_data), IPC_CREAT | 0600); |
892199bd JA |
1093 | if (shm_id == -1) { |
1094 | perror("shmget"); | |
1095 | return 1; | |
1096 | } | |
1097 | ||
1098 | threads = shmat(shm_id, NULL, 0); | |
86184d14 JA |
1099 | if (threads == (void *) -1 ) { |
1100 | perror("shmat"); | |
1101 | return 1; | |
1102 | } | |
892199bd JA |
1103 | |
1104 | atexit(free_shm); | |
1105 | ||
4240cfa1 JA |
1106 | if (sched_getaffinity(getpid(), sizeof(def_cpumask), &def_cpumask) == -1) { |
1107 | perror("sched_getaffinity"); | |
1108 | return 1; | |
1109 | } | |
1110 | ||
892199bd | 1111 | i = parse_options(argc, argv); |
7dd1389e | 1112 | |
4240cfa1 JA |
1113 | if (ini_file) { |
1114 | if (parse_jobs_ini(ini_file)) | |
1115 | return 1; | |
1116 | } else | |
1117 | parse_jobs_cmd(argc, argv, i); | |
7dd1389e | 1118 | |
4240cfa1 JA |
1119 | if (!thread_number) { |
1120 | printf("Nothing to do\n"); | |
1121 | return 1; | |
1122 | } | |
7dd1389e JA |
1123 | |
1124 | printf("%s: %s, bs=%uKiB, timeo=%u, write_stat=%u, odirect=%d\n", argv[0], sequential ? "sequential" : "random", global_bs >> 10, timeout, write_stat, odirect); | |
1125 | ||
fc24389f | 1126 | run_threads(argv); |
892199bd | 1127 | |
892199bd JA |
1128 | min_bw[0] = min_run[0] = ~0UL; |
1129 | min_bw[1] = min_run[1] = ~0UL; | |
1130 | minl[0] = minl[1] = ~0UL; | |
1131 | for (i = 0; i < thread_number; i++) { | |
1132 | struct thread_data *td = &threads[i]; | |
1133 | unsigned long bw = 0; | |
1134 | ||
1135 | if (td->error) | |
7dd1389e | 1136 | goto show_stat; |
892199bd JA |
1137 | |
1138 | if (td->runtime < min_run[td->ddir]) | |
1139 | min_run[td->ddir] = td->runtime; | |
1140 | if (td->runtime > max_run[td->ddir]) | |
1141 | max_run[td->ddir] = td->runtime; | |
1142 | ||
1143 | if (td->runtime) | |
4240cfa1 | 1144 | bw = (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1145 | if (bw < min_bw[td->ddir]) |
1146 | min_bw[td->ddir] = bw; | |
1147 | if (bw > max_bw[td->ddir]) | |
1148 | max_bw[td->ddir] = bw; | |
1149 | if (td->max_latency < minl[td->ddir]) | |
1150 | minl[td->ddir] = td->max_latency; | |
1151 | if (td->max_latency > maxl[td->ddir]) | |
1152 | maxl[td->ddir] = td->max_latency; | |
1153 | ||
4240cfa1 | 1154 | total_blocks[td->ddir] += td->io_blocks; |
892199bd JA |
1155 | |
1156 | if (td->ddir == DDIR_READ) { | |
4240cfa1 | 1157 | read_mb += (td->bs * td->io_blocks) >> 20; |
892199bd | 1158 | if (td->runtime) |
4240cfa1 | 1159 | read_agg += (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1160 | } |
1161 | if (td->ddir == DDIR_WRITE) { | |
4240cfa1 | 1162 | write_mb += (td->bs * td->io_blocks) >> 20; |
892199bd | 1163 | if (td->runtime) |
4240cfa1 | 1164 | write_agg += (td->io_blocks * td->bs) / td->runtime; |
892199bd JA |
1165 | } |
1166 | ||
7dd1389e | 1167 | show_stat: |
892199bd JA |
1168 | show_thread_status(td); |
1169 | } | |
1170 | ||
1171 | printf("Run status:\n"); | |
1172 | if (max_run[DDIR_READ]) | |
1173 | 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]); | |
1174 | if (max_run[DDIR_WRITE]) | |
1175 | 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 | 1176 | |
892199bd JA |
1177 | return 0; |
1178 | } |