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[PATCH] cleanup sg ioctl vs read approach
[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
20dc95c4
JA		 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)
ebac4655 20#define DEF_IO_ENGINE_NAME "sync"
20dc95c4
JA		 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)
ebac4655 30#define DEF_CREATE_FSYNC (1)
20dc95c4
JA		 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#define DEF_ZONE_SIZE (0)
38#define DEF_ZONE_SKIP (0)
ebac4655 39
e8e387c1 40static char fio_version_string[] = "fio 1.3";
ebac4655
JA		 41
42static int repeatable = DEF_RAND_REPEAT;
43static char *ini_file;
44static int max_jobs = MAX_JOBS;
45
46struct thread_data def_thread;
47struct thread_data *threads = NULL;
48
49int rate_quit = 0;
50int write_lat_log = 0;
51int write_bw_log = 0;
52int exitall_on_terminate = 0;
53
54static int setup_rate(struct thread_data *td)
55{
56 int nr_reads_per_sec;
57
58 if (!td->rate)
59 return 0;
60
61 if (td->rate < td->ratemin) {
62 fprintf(stderr, "min rate larger than nominal rate\n");
63 return -1;
64 }
65
66 nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
67 td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
68 td->rate_pending_usleep = 0;
69 return 0;
70}
71
72static void setup_log(struct io_log **log)
73{
74 struct io_log *l = malloc(sizeof(*l));
75
76 l->nr_samples = 0;
77 l->max_samples = 1024;
78 l->log = malloc(l->max_samples * sizeof(struct io_sample));
79 *log = l;
80}
81
82void finish_log(struct thread_data *td, struct io_log *log, const char *name)
83{
84 char file_name[128];
85 FILE *f;
86 unsigned int i;
87
88 sprintf(file_name, "client%d_%s.log", td->thread_number, name);
89 f = fopen(file_name, "w");
90 if (!f) {
91 perror("fopen log");
92 return;
93 }
94
95 for (i = 0; i < log->nr_samples; i++)
96 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
97
98 fclose(f);
99 free(log->log);
100 free(log);
101}
102
103static struct thread_data *get_new_job(int global, struct thread_data *parent)
104{
105 struct thread_data *td;
106
107 if (global)
108 return &def_thread;
109 if (thread_number >= max_jobs)
110 return NULL;
111
112 td = &threads[thread_number++];
113 memset(td, 0, sizeof(*td));
114
115 td->fd = -1;
116 td->thread_number = thread_number;
117
118 td->ddir = parent->ddir;
119 td->ioprio = parent->ioprio;
120 td->sequential = parent->sequential;
121 td->bs = parent->bs;
122 td->min_bs = parent->min_bs;
123 td->max_bs = parent->max_bs;
124 td->odirect = parent->odirect;
125 td->thinktime = parent->thinktime;
126 td->fsync_blocks = parent->fsync_blocks;
127 td->start_delay = parent->start_delay;
128 td->timeout = parent->timeout;
129 td->io_engine = parent->io_engine;
130 td->create_file = parent->create_file;
131 td->overwrite = parent->overwrite;
132 td->invalidate_cache = parent->invalidate_cache;
133 td->file_size = parent->file_size;
134 td->file_offset = parent->file_offset;
20dc95c4
JA		 135 td->zone_size = parent->zone_size;
136 td->zone_skip = parent->zone_skip;
ebac4655
JA		 137 td->rate = parent->rate;
138 td->ratemin = parent->ratemin;
139 td->ratecycle = parent->ratecycle;
140 td->iodepth = parent->iodepth;
141 td->sync_io = parent->sync_io;
142 td->mem_type = parent->mem_type;
143 td->bw_avg_time = parent->bw_avg_time;
144 td->create_serialize = parent->create_serialize;
145 td->create_fsync = parent->create_fsync;
146 td->loops = parent->loops;
147 td->verify = parent->verify;
148 td->stonewall = parent->stonewall;
149 td->numjobs = parent->numjobs;
150 td->use_thread = parent->use_thread;
151 td->do_disk_util = parent->do_disk_util;
152 memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
153 strcpy(td->io_engine_name, parent->io_engine_name);
154
155 return td;
156}
157
158static void put_job(struct thread_data *td)
159{
160 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
161 thread_number--;
162}
163
164static int add_job(struct thread_data *td, const char *jobname, int prioclass,
165 int prio)
166{
167 char *ddir_str[] = { "read", "write", "randread", "randwrite" };
168 struct stat sb;
169 int numjobs, ddir;
170
171#ifndef FIO_HAVE_LIBAIO
172 if (td->io_engine == FIO_LIBAIO) {
173 fprintf(stderr, "Linux libaio not available\n");
174 return 1;
175 }
176#endif
177#ifndef FIO_HAVE_POSIXAIO
178 if (td->io_engine == FIO_POSIXAIO) {
179 fprintf(stderr, "posix aio not available\n");
180 return 1;
181 }
182#endif
183#ifdef FIO_HAVE_IOPRIO
184 td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
185#endif
186
187 /*
188 * the def_thread is just for options, it's not a real job
189 */
190 if (td == &def_thread)
191 return 0;
192
193 if (td->io_engine & FIO_SYNCIO)
194 td->iodepth = 1;
195 else {
196 if (!td->iodepth)
197 td->iodepth = 1;
198 }
199
20dc95c4
JA		 200 /*
201 * only really works for sequential io for now
202 */
203 if (td->zone_size && !td->sequential)
204 td->zone_size = 0;
205
ebac4655 206 td->filetype = FIO_TYPE_FILE;
0af7b542
JA		 207 if (!stat(jobname, &sb)) {
208 if (S_ISBLK(sb.st_mode))
209 td->filetype = FIO_TYPE_BD;
210 else if (S_ISCHR(sb.st_mode))
211 td->filetype = FIO_TYPE_CHAR;
212 }
ebac4655
JA		 213
214 if (td->filetype == FIO_TYPE_FILE) {
215 if (td->directory[0] != '\0')
eba09dd3 216 sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->jobnum);
ebac4655 217 else
eba09dd3 218 sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
ebac4655
JA		 219 } else
220 strcpy(td->file_name, jobname);
221
222 sem_init(&td->mutex, 0, 0);
223
224 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
225 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
226 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
227
228 if (td->min_bs == -1U)
229 td->min_bs = td->bs;
230 if (td->max_bs == -1U)
231 td->max_bs = td->bs;
232 if (td_read(td))
233 td->verify = 0;
234
235 if (td->stonewall && td->thread_number > 1)
236 groupid++;
237
238 td->groupid = groupid;
239
240 if (setup_rate(td))
241 goto err;
242
243 if (write_lat_log) {
244 setup_log(&td->slat_log);
245 setup_log(&td->clat_log);
246 }
247 if (write_bw_log)
248 setup_log(&td->bw_log);
249
250 ddir = td->ddir + (!td->sequential << 1);
251 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);
252
253 /*
254 * recurse add identical jobs, clear numjobs and stonewall options
255 * as they don't apply to sub-jobs
256 */
257 numjobs = td->numjobs;
258 while (--numjobs) {
259 struct thread_data *td_new = get_new_job(0, td);
260
261 if (!td_new)
262 goto err;
263
264 td_new->numjobs = 1;
265 td_new->stonewall = 0;
eba09dd3 266 td_new->jobnum = numjobs;
ebac4655
JA		 267
268 if (add_job(td_new, jobname, prioclass, prio))
269 goto err;
270 }
271 return 0;
272err:
273 put_job(td);
274 return -1;
275}
276
277int init_random_state(struct thread_data *td)
278{
279 unsigned long seed;
280 int fd, num_maps, blocks;
281
282 fd = open("/dev/random", O_RDONLY);
283 if (fd == -1) {
284 td_verror(td, errno);
285 return 1;
286 }
287
288 if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
289 td_verror(td, EIO);
290 close(fd);
291 return 1;
292 }
293
294 close(fd);
295
296 srand48_r(seed, &td->bsrange_state);
297 srand48_r(seed, &td->verify_state);
298
299 if (td->sequential)
300 return 0;
301
302 if (repeatable)
303 seed = DEF_RANDSEED;
304
305 blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
306 num_maps = blocks / BLOCKS_PER_MAP;
307 td->file_map = malloc(num_maps * sizeof(long));
308 td->num_maps = num_maps;
309 memset(td->file_map, 0, num_maps * sizeof(long));
310
311 srand48_r(seed, &td->random_state);
312 return 0;
313}
314
315static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
316{
317#ifdef FIO_HAVE_CPU_AFFINITY
318 unsigned int i;
319
320 CPU_ZERO(&cpumask);
321
322 for (i = 0; i < sizeof(int) * 8; i++) {
323 if ((1 << i) & cpu)
324 CPU_SET(i, &cpumask);
325 }
326#endif
327}
328
329static unsigned long get_mult(char c)
330{
331 switch (c) {
332 case 'k':
333 case 'K':
334 return 1024;
335 case 'm':
336 case 'M':
337 return 1024 * 1024;
338 case 'g':
339 case 'G':
340 return 1024 * 1024 * 1024;
341 default:
342 return 1;
343 }
344}
345
346/*
347 * convert string after '=' into decimal value, noting any size suffix
348 */
349static int str_cnv(char *p, unsigned long long *val)
350{
351 char *str;
352 int len;
353
f5d3e5ec 354 str = strchr(p, '=');
ebac4655
JA		 355 if (!str)
356 return 1;
357
358 str++;
359 len = strlen(str);
360
361 *val = strtoul(str, NULL, 10);
362 if (*val == ULONG_MAX && errno == ERANGE)
363 return 1;
364
365 *val *= get_mult(str[len - 2]);
366 return 0;
367}
368
369static int check_strcnv(char *p, char *name, unsigned long long *val)
370{
20dc95c4 371 if (strncmp(p, name, strlen(name) - 1))
ebac4655
JA		 372 return 1;
373
374 return str_cnv(p, val);
375}
376
377static void strip_blank_front(char **p)
378{
379 char *s = *p;
380
381 while (isblank(*s))
382 s++;
383}
384
385static void strip_blank_end(char *p)
386{
387 while (isblank(*p)) {
388 *p = '\0';
389 p--;
390 }
391}
392
393typedef int (str_cb_fn)(struct thread_data *, char *);
394
395static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
396{
397 char *s = strstr(p, name);
398
399 if (!s)
400 return 1;
401
f5d3e5ec 402 s = strchr(s, '=');
ebac4655
JA		 403 if (!s)
404 return 1;
405
406 s++;
407 strip_blank_front(&s);
408 return cb(td, s);
409}
410
411static int check_strstore(char *p, char *name, char *dest)
412{
413 char *s = strstr(p, name);
414
415 if (!s)
416 return 1;
417
f5d3e5ec 418 s = strchr(p, '=');
ebac4655
JA		 419 if (!s)
420 return 1;
421
422 s++;
423 strip_blank_front(&s);
424
425 strcpy(dest, s);
426
427 s = dest + strlen(dest) - 1;
428 strip_blank_end(s);
429 return 0;
430}
431
01617be6 432static int __check_range(char *str, unsigned long *val)
ebac4655 433{
01617be6 434 char suffix;
ebac4655 435
01617be6
JA		 436 if (sscanf(str, "%lu%c", val, &suffix) == 2) {
437 *val *= get_mult(suffix);
ebac4655
JA		 438 return 0;
439 }
440
01617be6 441 if (sscanf(str, "%lu", val) == 1)
ebac4655 442 return 0;
ebac4655 443
01617be6
JA		 444 return 1;
445}
446
447static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
448{
449 char option[128];
450 char *str, *p1, *p2;
451
452 strcpy(option, p);
453 p = option;
454
455 str = strstr(p, name);
456 if (!str)
457 return 1;
ebac4655 458
01617be6
JA		 459 p += strlen(name);
460
461 str = strchr(p, '=');
462 if (!str)
463 return 1;
464
465 /*
466 * 'p' now holds whatever is after the '=' sign
467 */
468 p1 = str + 1;
469
470 /*
471 * terminate p1 at the '-' sign
472 */
473 p = strchr(p1, '-');
474 if (!p)
475 return 1;
476
477 p2 = p + 1;
478 *p = '\0';
479
480 if (!__check_range(p1, s) && !__check_range(p2, e))
ebac4655
JA		 481 return 0;
482
483 return 1;
ebac4655
JA		 484}
485
486static int check_int(char *p, char *name, unsigned int *val)
487{
f5d3e5ec 488 char *str;
ebac4655 489
f5d3e5ec
JA		 490 str = strstr(p, name);
491 if (!str)
492 return 1;
493
494 str = strchr(p, '=');
495 if (!str)
496 return 1;
497
498 str++;
ebac4655 499
f5d3e5ec 500 if (sscanf(str, "%u", val) == 1)
ebac4655
JA		 501 return 0;
502
503 return 1;
504}
505
506static int check_strset(char *p, char *name)
507{
508 return strncmp(p, name, strlen(name));
509}
510
511static int is_empty_or_comment(char *line)
512{
513 unsigned int i;
514
515 for (i = 0; i < strlen(line); i++) {
516 if (line[i] == ';')
517 return 1;
518 if (!isspace(line[i]) && !iscntrl(line[i]))
519 return 0;
520 }
521
522 return 1;
523}
524
525static int str_rw_cb(struct thread_data *td, char *mem)
526{
527 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
528 td->ddir = DDIR_READ;
529 td->sequential = 1;
530 return 0;
531 } else if (!strncmp(mem, "randread", 8)) {
532 td->ddir = DDIR_READ;
533 td->sequential = 0;
534 return 0;
535 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
536 td->ddir = DDIR_WRITE;
537 td->sequential = 1;
538 return 0;
539 } else if (!strncmp(mem, "randwrite", 9)) {
540 td->ddir = DDIR_WRITE;
541 td->sequential = 0;
542 return 0;
543 }
544
545 fprintf(stderr, "bad data direction: %s\n", mem);
546 return 1;
547}
548
549static int str_verify_cb(struct thread_data *td, char *mem)
550{
551 if (!strncmp(mem, "0", 1)) {
552 td->verify = VERIFY_NONE;
553 return 0;
554 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
555 td->verify = VERIFY_MD5;
556 return 0;
557 } else if (!strncmp(mem, "crc32", 5)) {
558 td->verify = VERIFY_CRC32;
559 return 0;
560 }
561
562 fprintf(stderr, "bad verify type: %s\n", mem);
563 return 1;
564}
565
566static int str_mem_cb(struct thread_data *td, char *mem)
567{
568 if (!strncmp(mem, "malloc", 6)) {
569 td->mem_type = MEM_MALLOC;
570 return 0;
571 } else if (!strncmp(mem, "shm", 3)) {
572 td->mem_type = MEM_SHM;
573 return 0;
574 } else if (!strncmp(mem, "mmap", 4)) {
575 td->mem_type = MEM_MMAP;
576 return 0;
577 }
578
579 fprintf(stderr, "bad mem type: %s\n", mem);
580 return 1;
581}
582
583static int str_ioengine_cb(struct thread_data *td, char *str)
584{
585 if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
586 !strncmp(str, "libaio", 6)) {
587 strcpy(td->io_engine_name, "libaio");
588 td->io_engine = FIO_LIBAIO;
589 return 0;
590 } else if (!strncmp(str, "posixaio", 8)) {
591 strcpy(td->io_engine_name, "posixaio");
592 td->io_engine = FIO_POSIXAIO;
593 return 0;
594 } else if (!strncmp(str, "sync", 4)) {
595 strcpy(td->io_engine_name, "sync");
596 td->io_engine = FIO_SYNCIO;
597 return 0;
598 } else if (!strncmp(str, "mmap", 4)) {
599 strcpy(td->io_engine_name, "mmap");
600 td->io_engine = FIO_MMAPIO;
601 return 0;
602 } else if (!strncmp(str, "sgio", 4)) {
603 strcpy(td->io_engine_name, "sgio");
604 td->io_engine = FIO_SGIO;
605 return 0;
606 }
607
608 fprintf(stderr, "bad ioengine type: %s\n", str);
609 return 1;
610}
611
612
613int parse_jobs_ini(char *file)
614{
615 unsigned int prioclass, prio, cpu, global;
616 unsigned long long ull;
617 unsigned long ul1, ul2;
618 struct thread_data *td;
619 char *string, *name;
620 fpos_t off;
621 FILE *f;
622 char *p;
623
624 f = fopen(file, "r");
625 if (!f) {
626 perror("fopen");
627 return 1;
628 }
629
630 string = malloc(4096);
631 name = malloc(256);
632
633 while ((p = fgets(string, 4096, f)) != NULL) {
634 if (is_empty_or_comment(p))
635 continue;
636 if (sscanf(p, "[%s]", name) != 1)
637 continue;
638
639 global = !strncmp(name, "global", 6);
640
641 name[strlen(name) - 1] = '\0';
642
643 td = get_new_job(global, &def_thread);
644 if (!td)
645 return 1;
646
647 prioclass = 2;
648 prio = 4;
649
650 fgetpos(f, &off);
651 while ((p = fgets(string, 4096, f)) != NULL) {
652 if (is_empty_or_comment(p))
653 continue;
654 if (strstr(p, "["))
655 break;
656 if (!check_int(p, "prio", &prio)) {
657#ifndef FIO_HAVE_IOPRIO
658 fprintf(stderr, "io priorities not available\n");
659 return 1;
660#endif
661 fgetpos(f, &off);
662 continue;
663 }
664 if (!check_int(p, "prioclass", &prioclass)) {
665#ifndef FIO_HAVE_IOPRIO
666 fprintf(stderr, "io priorities not available\n");
667 return 1;
668#endif
669 fgetpos(f, &off);
670 continue;
671 }
672 if (!check_int(p, "direct", &td->odirect)) {
673 fgetpos(f, &off);
674 continue;
675 }
676 if (!check_int(p, "rate", &td->rate)) {
677 fgetpos(f, &off);
678 continue;
679 }
680 if (!check_int(p, "ratemin", &td->ratemin)) {
681 fgetpos(f, &off);
682 continue;
683 }
684 if (!check_int(p, "ratecycle", &td->ratecycle)) {
685 fgetpos(f, &off);
686 continue;
687 }
688 if (!check_int(p, "thinktime", &td->thinktime)) {
689 fgetpos(f, &off);
690 continue;
691 }
692 if (!check_int(p, "cpumask", &cpu)) {
693#ifndef FIO_HAVE_CPU_AFFINITY
694 fprintf(stderr, "cpu affinity not available\n");
695 return 1;
696#endif
697 fill_cpu_mask(td->cpumask, cpu);
698 fgetpos(f, &off);
699 continue;
700 }
701 if (!check_int(p, "fsync", &td->fsync_blocks)) {
702 fgetpos(f, &off);
703 continue;
704 }
705 if (!check_int(p, "startdelay", &td->start_delay)) {
706 fgetpos(f, &off);
707 continue;
708 }
709 if (!check_int(p, "timeout", &td->timeout)) {
710 fgetpos(f, &off);
711 continue;
712 }
713 if (!check_int(p, "invalidate",&td->invalidate_cache)) {
714 fgetpos(f, &off);
715 continue;
716 }
717 if (!check_int(p, "iodepth", &td->iodepth)) {
718 fgetpos(f, &off);
719 continue;
720 }
721 if (!check_int(p, "sync", &td->sync_io)) {
722 fgetpos(f, &off);
723 continue;
724 }
725 if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
726 fgetpos(f, &off);
727 continue;
728 }
729 if (!check_int(p, "create_serialize", &td->create_serialize)) {
730 fgetpos(f, &off);
731 continue;
732 }
733 if (!check_int(p, "create_fsync", &td->create_fsync)) {
734 fgetpos(f, &off);
735 continue;
736 }
737 if (!check_int(p, "loops", &td->loops)) {
738 fgetpos(f, &off);
739 continue;
740 }
741 if (!check_int(p, "numjobs", &td->numjobs)) {
742 fgetpos(f, &off);
743 continue;
744 }
745 if (!check_int(p, "overwrite", &td->overwrite)) {
746 fgetpos(f, &off);
747 continue;
748 }
749 if (!check_range(p, "bsrange", &ul1, &ul2)) {
750 if (ul1 > ul2) {
751 td->max_bs = ul1;
752 td->min_bs = ul2;
753 } else {
754 td->max_bs = ul2;
755 td->min_bs = ul1;
756 }
757 fgetpos(f, &off);
758 continue;
759 }
760 if (!check_strcnv(p, "bs", &ull)) {
761 td->bs = ull;
762 fgetpos(f, &off);
763 continue;
764 }
765 if (!check_strcnv(p, "size", &td->file_size)) {
766 fgetpos(f, &off);
767 continue;
768 }
769 if (!check_strcnv(p, "offset", &td->file_offset)) {
770 fgetpos(f, &off);
20dc95c4
JA		 771 continue;
772 }
773 if (!check_strcnv(p, "zonesize", &td->zone_size)) {
774 fgetpos(f, &off);
775 continue;
776 }
777 if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
778 fgetpos(f, &off);
ebac4655
JA		 779 continue;
780 }
781 if (!check_strstore(p, "directory", td->directory)) {
782 fgetpos(f, &off);
783 continue;
784 }
785 if (!check_str(p, "mem", str_mem_cb, td)) {
786 fgetpos(f, &off);
787 continue;
788 }
789 if (!check_str(p, "verify", str_verify_cb, td)) {
790 fgetpos(f, &off);
791 continue;
792 }
793 if (!check_str(p, "rw", str_rw_cb, td)) {
794 fgetpos(f, &off);
795 continue;
796 }
797 if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
798 fgetpos(f, &off);
799 continue;
800 }
801 if (!check_strset(p, "create")) {
802 td->create_file = 1;
803 fgetpos(f, &off);
804 continue;
805 }
806 if (!check_strset(p, "exitall")) {
807 exitall_on_terminate = 1;
808 fgetpos(f, &off);
809 continue;
810 }
811 if (!check_strset(p, "stonewall")) {
812 td->stonewall = 1;
813 fgetpos(f, &off);
814 continue;
815 }
816 if (!check_strset(p, "thread")) {
817 td->use_thread = 1;
818 fgetpos(f, &off);
819 continue;
820 }
821
822 printf("Client%d: bad option %s\n",td->thread_number,p);
823 }
824 fsetpos(f, &off);
825
826 if (add_job(td, name, prioclass, prio))
827 return 1;
828 }
829
830 free(string);
831 free(name);
832 fclose(f);
833 return 0;
834}
835
836static int fill_def_thread(void)
837{
838 memset(&def_thread, 0, sizeof(def_thread));
839
840 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
841 perror("sched_getaffinity");
842 return 1;
843 }
844
845 /*
846 * fill globals
847 */
848 def_thread.ddir = DDIR_READ;
849 def_thread.bs = DEF_BS;
850 def_thread.min_bs = -1;
851 def_thread.max_bs = -1;
852 def_thread.io_engine = DEF_IO_ENGINE;
853 strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
854 def_thread.odirect = DEF_ODIRECT;
855 def_thread.ratecycle = DEF_RATE_CYCLE;
856 def_thread.sequential = DEF_SEQUENTIAL;
857 def_thread.timeout = DEF_TIMEOUT;
858 def_thread.create_file = DEF_CREATE;
859 def_thread.overwrite = DEF_OVERWRITE;
860 def_thread.invalidate_cache = DEF_INVALIDATE;
861 def_thread.sync_io = DEF_SYNCIO;
862 def_thread.mem_type = MEM_MALLOC;
863 def_thread.bw_avg_time = DEF_BWAVGTIME;
864 def_thread.create_serialize = DEF_CREATE_SER;
865 def_thread.create_fsync = DEF_CREATE_FSYNC;
866 def_thread.loops = DEF_LOOPS;
867 def_thread.verify = DEF_VERIFY;
868 def_thread.stonewall = DEF_STONEWALL;
869 def_thread.numjobs = DEF_NUMJOBS;
870 def_thread.use_thread = DEF_USE_THREAD;
871#ifdef FIO_HAVE_DISK_UTIL
872 def_thread.do_disk_util = 1;
873#endif
874
875 return 0;
876}
877
878static void parse_cmd_line(int argc, char *argv[])
879{
880 int c;
881
882 while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
883 switch (c) {
884 case 's':
885 def_thread.sequential = !!atoi(optarg);
886 break;
887 case 'b':
888 def_thread.bs = atoi(optarg);
889 def_thread.bs <<= 10;
890 if (!def_thread.bs) {
891 printf("bad block size\n");
892 def_thread.bs = DEF_BS;
893 }
894 break;
895 case 't':
896 def_thread.timeout = atoi(optarg);
897 break;
898 case 'r':
899 repeatable = !!atoi(optarg);
900 break;
901 case 'R':
902 rate_quit = !!atoi(optarg);
903 break;
904 case 'o':
905 def_thread.odirect = !!atoi(optarg);
906 break;
907 case 'f':
908 ini_file = strdup(optarg);
909 break;
910 case 'l':
911 write_lat_log = 1;
912 break;
913 case 'w':
914 write_bw_log = 1;
915 break;
916 case 'v':
917 printf("%s\n", fio_version_string);
918 exit(0);
919 }
920 }
921}
922
923static void free_shm(void)
924{
925 struct shmid_ds sbuf;
926
927 if (threads) {
928 shmdt(threads);
929 threads = NULL;
930 shmctl(shm_id, IPC_RMID, &sbuf);
931 }
932}
933
934static int setup_thread_area(void)
935{
936 /*
937 * 1024 is too much on some machines, scale max_jobs if
938 * we get a failure that looks like too large a shm segment
939 */
940 do {
941 int s = max_jobs * sizeof(struct thread_data);
942
943 shm_id = shmget(0, s, IPC_CREAT | 0600);
944 if (shm_id != -1)
945 break;
946 if (errno != EINVAL) {
947 perror("shmget");
948 break;
949 }
950
951 max_jobs >>= 1;
952 } while (max_jobs);
953
954 if (shm_id == -1)
955 return 1;
956
957 threads = shmat(shm_id, NULL, 0);
958 if (threads == (void *) -1) {
959 perror("shmat");
960 return 1;
961 }
962
963 atexit(free_shm);
964 return 0;
965}
966
967int parse_options(int argc, char *argv[])
968{
969 if (setup_thread_area())
970 return 1;
971 if (fill_def_thread())
972 return 1;
973
974 parse_cmd_line(argc, argv);
975
976 if (!ini_file) {
977 printf("Need job file\n");
978 return 1;
979 }
980
981 if (parse_jobs_ini(ini_file))
982 return 1;
983
984 return 0;
985}
fio - Flexible IO Tester