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[PATCH] Include ETA for job(s) to finish
[fio.git] / fio-ini.c
CommitLineData
ebac4655
JA		 1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <fcntl.h>
5#include <ctype.h>
6#include <string.h>
7#include <errno.h>
8#include <sys/ipc.h>
9#include <sys/shm.h>
10#include <sys/types.h>
11#include <sys/stat.h>
12
13#include "fio.h"
14
15#define DEF_BS (4096)
16#define DEF_TIMEOUT (0)
17#define DEF_RATE_CYCLE (1000)
18#define DEF_ODIRECT (1)
19#define DEF_IO_ENGINE (FIO_SYNCIO)
20#define DEF_IO_ENGINE_NAME "sync"
21#define DEF_SEQUENTIAL (1)
22#define DEF_RAND_REPEAT (1)
23#define DEF_OVERWRITE (1)
24#define DEF_CREATE (1)
25#define DEF_INVALIDATE (1)
26#define DEF_SYNCIO (0)
27#define DEF_RANDSEED (0xb1899bedUL)
28#define DEF_BWAVGTIME (500)
29#define DEF_CREATE_SER (1)
30#define DEF_CREATE_FSYNC (1)
31#define DEF_LOOPS (1)
32#define DEF_VERIFY (0)
33#define DEF_STONEWALL (0)
34#define DEF_NUMJOBS (1)
35#define DEF_USE_THREAD (0)
36#define DEF_FILE_SIZE (1024 * 1024 * 1024UL)
37
3e7ba7c5 38static char fio_version_string[] = "fio 1.1";
ebac4655
JA		 39
40static int repeatable = DEF_RAND_REPEAT;
41static char *ini_file;
42static int max_jobs = MAX_JOBS;
43
44struct thread_data def_thread;
45struct thread_data *threads = NULL;
46
47int rate_quit = 0;
48int write_lat_log = 0;
49int write_bw_log = 0;
50int exitall_on_terminate = 0;
51
52static int setup_rate(struct thread_data *td)
53{
54 int nr_reads_per_sec;
55
56 if (!td->rate)
57 return 0;
58
59 if (td->rate < td->ratemin) {
60 fprintf(stderr, "min rate larger than nominal rate\n");
61 return -1;
62 }
63
64 nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
65 td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
66 td->rate_pending_usleep = 0;
67 return 0;
68}
69
70static void setup_log(struct io_log **log)
71{
72 struct io_log *l = malloc(sizeof(*l));
73
74 l->nr_samples = 0;
75 l->max_samples = 1024;
76 l->log = malloc(l->max_samples * sizeof(struct io_sample));
77 *log = l;
78}
79
80void finish_log(struct thread_data *td, struct io_log *log, const char *name)
81{
82 char file_name[128];
83 FILE *f;
84 unsigned int i;
85
86 sprintf(file_name, "client%d_%s.log", td->thread_number, name);
87 f = fopen(file_name, "w");
88 if (!f) {
89 perror("fopen log");
90 return;
91 }
92
93 for (i = 0; i < log->nr_samples; i++)
94 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
95
96 fclose(f);
97 free(log->log);
98 free(log);
99}
100
101static struct thread_data *get_new_job(int global, struct thread_data *parent)
102{
103 struct thread_data *td;
104
105 if (global)
106 return &def_thread;
107 if (thread_number >= max_jobs)
108 return NULL;
109
110 td = &threads[thread_number++];
111 memset(td, 0, sizeof(*td));
112
113 td->fd = -1;
114 td->thread_number = thread_number;
115
116 td->ddir = parent->ddir;
117 td->ioprio = parent->ioprio;
118 td->sequential = parent->sequential;
119 td->bs = parent->bs;
120 td->min_bs = parent->min_bs;
121 td->max_bs = parent->max_bs;
122 td->odirect = parent->odirect;
123 td->thinktime = parent->thinktime;
124 td->fsync_blocks = parent->fsync_blocks;
125 td->start_delay = parent->start_delay;
126 td->timeout = parent->timeout;
127 td->io_engine = parent->io_engine;
128 td->create_file = parent->create_file;
129 td->overwrite = parent->overwrite;
130 td->invalidate_cache = parent->invalidate_cache;
131 td->file_size = parent->file_size;
132 td->file_offset = parent->file_offset;
133 td->rate = parent->rate;
134 td->ratemin = parent->ratemin;
135 td->ratecycle = parent->ratecycle;
136 td->iodepth = parent->iodepth;
137 td->sync_io = parent->sync_io;
138 td->mem_type = parent->mem_type;
139 td->bw_avg_time = parent->bw_avg_time;
140 td->create_serialize = parent->create_serialize;
141 td->create_fsync = parent->create_fsync;
142 td->loops = parent->loops;
143 td->verify = parent->verify;
144 td->stonewall = parent->stonewall;
145 td->numjobs = parent->numjobs;
146 td->use_thread = parent->use_thread;
147 td->do_disk_util = parent->do_disk_util;
148 memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
149 strcpy(td->io_engine_name, parent->io_engine_name);
150
151 return td;
152}
153
154static void put_job(struct thread_data *td)
155{
156 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
157 thread_number--;
158}
159
160static int add_job(struct thread_data *td, const char *jobname, int prioclass,
161 int prio)
162{
163 char *ddir_str[] = { "read", "write", "randread", "randwrite" };
164 struct stat sb;
165 int numjobs, ddir;
166
167#ifndef FIO_HAVE_LIBAIO
168 if (td->io_engine == FIO_LIBAIO) {
169 fprintf(stderr, "Linux libaio not available\n");
170 return 1;
171 }
172#endif
173#ifndef FIO_HAVE_POSIXAIO
174 if (td->io_engine == FIO_POSIXAIO) {
175 fprintf(stderr, "posix aio not available\n");
176 return 1;
177 }
178#endif
179#ifdef FIO_HAVE_IOPRIO
180 td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
181#endif
182
183 /*
184 * the def_thread is just for options, it's not a real job
185 */
186 if (td == &def_thread)
187 return 0;
188
189 if (td->io_engine & FIO_SYNCIO)
190 td->iodepth = 1;
191 else {
192 if (!td->iodepth)
193 td->iodepth = 1;
194 }
195
196 td->filetype = FIO_TYPE_FILE;
197 if (!stat(jobname, &sb) && S_ISBLK(sb.st_mode))
198 td->filetype = FIO_TYPE_BD;
199
200 if (td->filetype == FIO_TYPE_FILE) {
201 if (td->directory[0] != '\0')
202 sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->thread_number);
203 else
204 sprintf(td->file_name, "%s.%d", jobname, td->thread_number);
205 } else
206 strcpy(td->file_name, jobname);
207
208 sem_init(&td->mutex, 0, 0);
209
210 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
211 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
212 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
213
214 if (td->min_bs == -1U)
215 td->min_bs = td->bs;
216 if (td->max_bs == -1U)
217 td->max_bs = td->bs;
218 if (td_read(td))
219 td->verify = 0;
220
221 if (td->stonewall && td->thread_number > 1)
222 groupid++;
223
224 td->groupid = groupid;
225
226 if (setup_rate(td))
227 goto err;
228
229 if (write_lat_log) {
230 setup_log(&td->slat_log);
231 setup_log(&td->clat_log);
232 }
233 if (write_bw_log)
234 setup_log(&td->bw_log);
235
236 ddir = td->ddir + (!td->sequential << 1);
237 printf("Client%d (g=%d): rw=%s, prio=%d/%d, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], prioclass, prio, td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
238
239 /*
240 * recurse add identical jobs, clear numjobs and stonewall options
241 * as they don't apply to sub-jobs
242 */
243 numjobs = td->numjobs;
244 while (--numjobs) {
245 struct thread_data *td_new = get_new_job(0, td);
246
247 if (!td_new)
248 goto err;
249
250 td_new->numjobs = 1;
251 td_new->stonewall = 0;
252
253 if (add_job(td_new, jobname, prioclass, prio))
254 goto err;
255 }
256 return 0;
257err:
258 put_job(td);
259 return -1;
260}
261
262int init_random_state(struct thread_data *td)
263{
264 unsigned long seed;
265 int fd, num_maps, blocks;
266
267 fd = open("/dev/random", O_RDONLY);
268 if (fd == -1) {
269 td_verror(td, errno);
270 return 1;
271 }
272
273 if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
274 td_verror(td, EIO);
275 close(fd);
276 return 1;
277 }
278
279 close(fd);
280
281 srand48_r(seed, &td->bsrange_state);
282 srand48_r(seed, &td->verify_state);
283
284 if (td->sequential)
285 return 0;
286
287 if (repeatable)
288 seed = DEF_RANDSEED;
289
290 blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
291 num_maps = blocks / BLOCKS_PER_MAP;
292 td->file_map = malloc(num_maps * sizeof(long));
293 td->num_maps = num_maps;
294 memset(td->file_map, 0, num_maps * sizeof(long));
295
296 srand48_r(seed, &td->random_state);
297 return 0;
298}
299
300static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
301{
302#ifdef FIO_HAVE_CPU_AFFINITY
303 unsigned int i;
304
305 CPU_ZERO(&cpumask);
306
307 for (i = 0; i < sizeof(int) * 8; i++) {
308 if ((1 << i) & cpu)
309 CPU_SET(i, &cpumask);
310 }
311#endif
312}
313
314static unsigned long get_mult(char c)
315{
316 switch (c) {
317 case 'k':
318 case 'K':
319 return 1024;
320 case 'm':
321 case 'M':
322 return 1024 * 1024;
323 case 'g':
324 case 'G':
325 return 1024 * 1024 * 1024;
326 default:
327 return 1;
328 }
329}
330
331/*
332 * convert string after '=' into decimal value, noting any size suffix
333 */
334static int str_cnv(char *p, unsigned long long *val)
335{
336 char *str;
337 int len;
338
f5d3e5ec 339 str = strchr(p, '=');
ebac4655
JA		 340 if (!str)
341 return 1;
342
343 str++;
344 len = strlen(str);
345
346 *val = strtoul(str, NULL, 10);
347 if (*val == ULONG_MAX && errno == ERANGE)
348 return 1;
349
350 *val *= get_mult(str[len - 2]);
351 return 0;
352}
353
354static int check_strcnv(char *p, char *name, unsigned long long *val)
355{
356 if (!strstr(p, name))
357 return 1;
358
359 return str_cnv(p, val);
360}
361
362static void strip_blank_front(char **p)
363{
364 char *s = *p;
365
366 while (isblank(*s))
367 s++;
368}
369
370static void strip_blank_end(char *p)
371{
372 while (isblank(*p)) {
373 *p = '\0';
374 p--;
375 }
376}
377
378typedef int (str_cb_fn)(struct thread_data *, char *);
379
380static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
381{
382 char *s = strstr(p, name);
383
384 if (!s)
385 return 1;
386
f5d3e5ec 387 s = strchr(s, '=');
ebac4655
JA		 388 if (!s)
389 return 1;
390
391 s++;
392 strip_blank_front(&s);
393 return cb(td, s);
394}
395
396static int check_strstore(char *p, char *name, char *dest)
397{
398 char *s = strstr(p, name);
399
400 if (!s)
401 return 1;
402
f5d3e5ec 403 s = strchr(p, '=');
ebac4655
JA		 404 if (!s)
405 return 1;
406
407 s++;
408 strip_blank_front(&s);
409
410 strcpy(dest, s);
411
412 s = dest + strlen(dest) - 1;
413 strip_blank_end(s);
414 return 0;
415}
416
01617be6 417static int __check_range(char *str, unsigned long *val)
ebac4655 418{
01617be6 419 char suffix;
ebac4655 420
01617be6
JA		 421 if (sscanf(str, "%lu%c", val, &suffix) == 2) {
422 *val *= get_mult(suffix);
ebac4655
JA		 423 return 0;
424 }
425
01617be6 426 if (sscanf(str, "%lu", val) == 1)
ebac4655 427 return 0;
ebac4655 428
01617be6
JA		 429 return 1;
430}
431
432static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
433{
434 char option[128];
435 char *str, *p1, *p2;
436
437 strcpy(option, p);
438 p = option;
439
440 str = strstr(p, name);
441 if (!str)
442 return 1;
ebac4655 443
01617be6
JA		 444 p += strlen(name);
445
446 str = strchr(p, '=');
447 if (!str)
448 return 1;
449
450 /*
451 * 'p' now holds whatever is after the '=' sign
452 */
453 p1 = str + 1;
454
455 /*
456 * terminate p1 at the '-' sign
457 */
458 p = strchr(p1, '-');
459 if (!p)
460 return 1;
461
462 p2 = p + 1;
463 *p = '\0';
464
465 if (!__check_range(p1, s) && !__check_range(p2, e))
ebac4655
JA		 466 return 0;
467
468 return 1;
ebac4655
JA		 469}
470
471static int check_int(char *p, char *name, unsigned int *val)
472{
f5d3e5ec 473 char *str;
ebac4655 474
f5d3e5ec
JA		 475 str = strstr(p, name);
476 if (!str)
477 return 1;
478
479 str = strchr(p, '=');
480 if (!str)
481 return 1;
482
483 str++;
ebac4655 484
f5d3e5ec 485 if (sscanf(str, "%u", val) == 1)
ebac4655
JA		 486 return 0;
487
488 return 1;
489}
490
491static int check_strset(char *p, char *name)
492{
493 return strncmp(p, name, strlen(name));
494}
495
496static int is_empty_or_comment(char *line)
497{
498 unsigned int i;
499
500 for (i = 0; i < strlen(line); i++) {
501 if (line[i] == ';')
502 return 1;
503 if (!isspace(line[i]) && !iscntrl(line[i]))
504 return 0;
505 }
506
507 return 1;
508}
509
510static int str_rw_cb(struct thread_data *td, char *mem)
511{
512 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
513 td->ddir = DDIR_READ;
514 td->sequential = 1;
515 return 0;
516 } else if (!strncmp(mem, "randread", 8)) {
517 td->ddir = DDIR_READ;
518 td->sequential = 0;
519 return 0;
520 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
521 td->ddir = DDIR_WRITE;
522 td->sequential = 1;
523 return 0;
524 } else if (!strncmp(mem, "randwrite", 9)) {
525 td->ddir = DDIR_WRITE;
526 td->sequential = 0;
527 return 0;
528 }
529
530 fprintf(stderr, "bad data direction: %s\n", mem);
531 return 1;
532}
533
534static int str_verify_cb(struct thread_data *td, char *mem)
535{
536 if (!strncmp(mem, "0", 1)) {
537 td->verify = VERIFY_NONE;
538 return 0;
539 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
540 td->verify = VERIFY_MD5;
541 return 0;
542 } else if (!strncmp(mem, "crc32", 5)) {
543 td->verify = VERIFY_CRC32;
544 return 0;
545 }
546
547 fprintf(stderr, "bad verify type: %s\n", mem);
548 return 1;
549}
550
551static int str_mem_cb(struct thread_data *td, char *mem)
552{
553 if (!strncmp(mem, "malloc", 6)) {
554 td->mem_type = MEM_MALLOC;
555 return 0;
556 } else if (!strncmp(mem, "shm", 3)) {
557 td->mem_type = MEM_SHM;
558 return 0;
559 } else if (!strncmp(mem, "mmap", 4)) {
560 td->mem_type = MEM_MMAP;
561 return 0;
562 }
563
564 fprintf(stderr, "bad mem type: %s\n", mem);
565 return 1;
566}
567
568static int str_ioengine_cb(struct thread_data *td, char *str)
569{
570 if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
571 !strncmp(str, "libaio", 6)) {
572 strcpy(td->io_engine_name, "libaio");
573 td->io_engine = FIO_LIBAIO;
574 return 0;
575 } else if (!strncmp(str, "posixaio", 8)) {
576 strcpy(td->io_engine_name, "posixaio");
577 td->io_engine = FIO_POSIXAIO;
578 return 0;
579 } else if (!strncmp(str, "sync", 4)) {
580 strcpy(td->io_engine_name, "sync");
581 td->io_engine = FIO_SYNCIO;
582 return 0;
583 } else if (!strncmp(str, "mmap", 4)) {
584 strcpy(td->io_engine_name, "mmap");
585 td->io_engine = FIO_MMAPIO;
586 return 0;
587 } else if (!strncmp(str, "sgio", 4)) {
588 strcpy(td->io_engine_name, "sgio");
589 td->io_engine = FIO_SGIO;
590 return 0;
591 }
592
593 fprintf(stderr, "bad ioengine type: %s\n", str);
594 return 1;
595}
596
597
598int parse_jobs_ini(char *file)
599{
600 unsigned int prioclass, prio, cpu, global;
601 unsigned long long ull;
602 unsigned long ul1, ul2;
603 struct thread_data *td;
604 char *string, *name;
605 fpos_t off;
606 FILE *f;
607 char *p;
608
609 f = fopen(file, "r");
610 if (!f) {
611 perror("fopen");
612 return 1;
613 }
614
615 string = malloc(4096);
616 name = malloc(256);
617
618 while ((p = fgets(string, 4096, f)) != NULL) {
619 if (is_empty_or_comment(p))
620 continue;
621 if (sscanf(p, "[%s]", name) != 1)
622 continue;
623
624 global = !strncmp(name, "global", 6);
625
626 name[strlen(name) - 1] = '\0';
627
628 td = get_new_job(global, &def_thread);
629 if (!td)
630 return 1;
631
632 prioclass = 2;
633 prio = 4;
634
635 fgetpos(f, &off);
636 while ((p = fgets(string, 4096, f)) != NULL) {
637 if (is_empty_or_comment(p))
638 continue;
639 if (strstr(p, "["))
640 break;
641 if (!check_int(p, "prio", &prio)) {
642#ifndef FIO_HAVE_IOPRIO
643 fprintf(stderr, "io priorities not available\n");
644 return 1;
645#endif
646 fgetpos(f, &off);
647 continue;
648 }
649 if (!check_int(p, "prioclass", &prioclass)) {
650#ifndef FIO_HAVE_IOPRIO
651 fprintf(stderr, "io priorities not available\n");
652 return 1;
653#endif
654 fgetpos(f, &off);
655 continue;
656 }
657 if (!check_int(p, "direct", &td->odirect)) {
658 fgetpos(f, &off);
659 continue;
660 }
661 if (!check_int(p, "rate", &td->rate)) {
662 fgetpos(f, &off);
663 continue;
664 }
665 if (!check_int(p, "ratemin", &td->ratemin)) {
666 fgetpos(f, &off);
667 continue;
668 }
669 if (!check_int(p, "ratecycle", &td->ratecycle)) {
670 fgetpos(f, &off);
671 continue;
672 }
673 if (!check_int(p, "thinktime", &td->thinktime)) {
674 fgetpos(f, &off);
675 continue;
676 }
677 if (!check_int(p, "cpumask", &cpu)) {
678#ifndef FIO_HAVE_CPU_AFFINITY
679 fprintf(stderr, "cpu affinity not available\n");
680 return 1;
681#endif
682 fill_cpu_mask(td->cpumask, cpu);
683 fgetpos(f, &off);
684 continue;
685 }
686 if (!check_int(p, "fsync", &td->fsync_blocks)) {
687 fgetpos(f, &off);
688 continue;
689 }
690 if (!check_int(p, "startdelay", &td->start_delay)) {
691 fgetpos(f, &off);
692 continue;
693 }
694 if (!check_int(p, "timeout", &td->timeout)) {
695 fgetpos(f, &off);
696 continue;
697 }
698 if (!check_int(p, "invalidate",&td->invalidate_cache)) {
699 fgetpos(f, &off);
700 continue;
701 }
702 if (!check_int(p, "iodepth", &td->iodepth)) {
703 fgetpos(f, &off);
704 continue;
705 }
706 if (!check_int(p, "sync", &td->sync_io)) {
707 fgetpos(f, &off);
708 continue;
709 }
710 if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
711 fgetpos(f, &off);
712 continue;
713 }
714 if (!check_int(p, "create_serialize", &td->create_serialize)) {
715 fgetpos(f, &off);
716 continue;
717 }
718 if (!check_int(p, "create_fsync", &td->create_fsync)) {
719 fgetpos(f, &off);
720 continue;
721 }
722 if (!check_int(p, "loops", &td->loops)) {
723 fgetpos(f, &off);
724 continue;
725 }
726 if (!check_int(p, "numjobs", &td->numjobs)) {
727 fgetpos(f, &off);
728 continue;
729 }
730 if (!check_int(p, "overwrite", &td->overwrite)) {
731 fgetpos(f, &off);
732 continue;
733 }
734 if (!check_range(p, "bsrange", &ul1, &ul2)) {
735 if (ul1 > ul2) {
736 td->max_bs = ul1;
737 td->min_bs = ul2;
738 } else {
739 td->max_bs = ul2;
740 td->min_bs = ul1;
741 }
742 fgetpos(f, &off);
743 continue;
744 }
745 if (!check_strcnv(p, "bs", &ull)) {
746 td->bs = ull;
747 fgetpos(f, &off);
748 continue;
749 }
750 if (!check_strcnv(p, "size", &td->file_size)) {
751 fgetpos(f, &off);
752 continue;
753 }
754 if (!check_strcnv(p, "offset", &td->file_offset)) {
755 fgetpos(f, &off);
756 continue;
757 }
758 if (!check_strstore(p, "directory", td->directory)) {
759 fgetpos(f, &off);
760 continue;
761 }
762 if (!check_str(p, "mem", str_mem_cb, td)) {
763 fgetpos(f, &off);
764 continue;
765 }
766 if (!check_str(p, "verify", str_verify_cb, td)) {
767 fgetpos(f, &off);
768 continue;
769 }
770 if (!check_str(p, "rw", str_rw_cb, td)) {
771 fgetpos(f, &off);
772 continue;
773 }
774 if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
775 fgetpos(f, &off);
776 continue;
777 }
778 if (!check_strset(p, "create")) {
779 td->create_file = 1;
780 fgetpos(f, &off);
781 continue;
782 }
783 if (!check_strset(p, "exitall")) {
784 exitall_on_terminate = 1;
785 fgetpos(f, &off);
786 continue;
787 }
788 if (!check_strset(p, "stonewall")) {
789 td->stonewall = 1;
790 fgetpos(f, &off);
791 continue;
792 }
793 if (!check_strset(p, "thread")) {
794 td->use_thread = 1;
795 fgetpos(f, &off);
796 continue;
797 }
798
799 printf("Client%d: bad option %s\n",td->thread_number,p);
800 }
801 fsetpos(f, &off);
802
803 if (add_job(td, name, prioclass, prio))
804 return 1;
805 }
806
807 free(string);
808 free(name);
809 fclose(f);
810 return 0;
811}
812
813static int fill_def_thread(void)
814{
815 memset(&def_thread, 0, sizeof(def_thread));
816
817 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
818 perror("sched_getaffinity");
819 return 1;
820 }
821
822 /*
823 * fill globals
824 */
825 def_thread.ddir = DDIR_READ;
826 def_thread.bs = DEF_BS;
827 def_thread.min_bs = -1;
828 def_thread.max_bs = -1;
829 def_thread.io_engine = DEF_IO_ENGINE;
830 strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
831 def_thread.odirect = DEF_ODIRECT;
832 def_thread.ratecycle = DEF_RATE_CYCLE;
833 def_thread.sequential = DEF_SEQUENTIAL;
834 def_thread.timeout = DEF_TIMEOUT;
835 def_thread.create_file = DEF_CREATE;
836 def_thread.overwrite = DEF_OVERWRITE;
837 def_thread.invalidate_cache = DEF_INVALIDATE;
838 def_thread.sync_io = DEF_SYNCIO;
839 def_thread.mem_type = MEM_MALLOC;
840 def_thread.bw_avg_time = DEF_BWAVGTIME;
841 def_thread.create_serialize = DEF_CREATE_SER;
842 def_thread.create_fsync = DEF_CREATE_FSYNC;
843 def_thread.loops = DEF_LOOPS;
844 def_thread.verify = DEF_VERIFY;
845 def_thread.stonewall = DEF_STONEWALL;
846 def_thread.numjobs = DEF_NUMJOBS;
847 def_thread.use_thread = DEF_USE_THREAD;
848#ifdef FIO_HAVE_DISK_UTIL
849 def_thread.do_disk_util = 1;
850#endif
851
852 return 0;
853}
854
855static void parse_cmd_line(int argc, char *argv[])
856{
857 int c;
858
859 while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
860 switch (c) {
861 case 's':
862 def_thread.sequential = !!atoi(optarg);
863 break;
864 case 'b':
865 def_thread.bs = atoi(optarg);
866 def_thread.bs <<= 10;
867 if (!def_thread.bs) {
868 printf("bad block size\n");
869 def_thread.bs = DEF_BS;
870 }
871 break;
872 case 't':
873 def_thread.timeout = atoi(optarg);
874 break;
875 case 'r':
876 repeatable = !!atoi(optarg);
877 break;
878 case 'R':
879 rate_quit = !!atoi(optarg);
880 break;
881 case 'o':
882 def_thread.odirect = !!atoi(optarg);
883 break;
884 case 'f':
885 ini_file = strdup(optarg);
886 break;
887 case 'l':
888 write_lat_log = 1;
889 break;
890 case 'w':
891 write_bw_log = 1;
892 break;
893 case 'v':
894 printf("%s\n", fio_version_string);
895 exit(0);
896 }
897 }
898}
899
900static void free_shm(void)
901{
902 struct shmid_ds sbuf;
903
904 if (threads) {
905 shmdt(threads);
906 threads = NULL;
907 shmctl(shm_id, IPC_RMID, &sbuf);
908 }
909}
910
911static int setup_thread_area(void)
912{
913 /*
914 * 1024 is too much on some machines, scale max_jobs if
915 * we get a failure that looks like too large a shm segment
916 */
917 do {
918 int s = max_jobs * sizeof(struct thread_data);
919
920 shm_id = shmget(0, s, IPC_CREAT | 0600);
921 if (shm_id != -1)
922 break;
923 if (errno != EINVAL) {
924 perror("shmget");
925 break;
926 }
927
928 max_jobs >>= 1;
929 } while (max_jobs);
930
931 if (shm_id == -1)
932 return 1;
933
934 threads = shmat(shm_id, NULL, 0);
935 if (threads == (void *) -1) {
936 perror("shmat");
937 return 1;
938 }
939
940 atexit(free_shm);
941 return 0;
942}
943
944int parse_options(int argc, char *argv[])
945{
946 if (setup_thread_area())
947 return 1;
948 if (fill_def_thread())
949 return 1;
950
951 parse_cmd_line(argc, argv);
952
953 if (!ini_file) {
954 printf("Need job file\n");
955 return 1;
956 }
957
958 if (parse_jobs_ini(ini_file))
959 return 1;
960
961 return 0;
962}
fio - Flexible IO Tester