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Remove config-host.h on clean.
[fio.git] / init.c
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1/*
2 * This file contains job initialization and setup functions.
3 */
4#include <stdio.h>
5#include <stdlib.h>
6#include <unistd.h>
7#include <fcntl.h>
8#include <ctype.h>
9#include <string.h>
10#include <errno.h>
11#include <sys/ipc.h>
12#ifndef FIO_NO_HAVE_SHM_H
13#include <sys/shm.h>
14#endif
15#include <sys/types.h>
16#include <sys/stat.h>
17
18#include "fio.h"
19#include "parse.h"
20#include "smalloc.h"
21#include "filehash.h"
22#include "verify.h"
23#include "profile.h"
24#include "server.h"
25#include "idletime.h"
26
27#include "lib/getopt.h"
28
29const char fio_version_string[] = FIO_VERSION;
30
31#define FIO_RANDSEED (0xb1899bedUL)
32
33static char **ini_file;
34static int max_jobs = FIO_MAX_JOBS;
35static int dump_cmdline;
36static int def_timeout;
37static int parse_only;
38
39static struct thread_data def_thread;
40struct thread_data *threads = NULL;
41
42int exitall_on_terminate = 0;
43int output_format = FIO_OUTPUT_NORMAL;
44int eta_print = FIO_ETA_AUTO;
45int eta_new_line = 0;
46unsigned long long mlock_size = 0;
47FILE *f_out = NULL;
48FILE *f_err = NULL;
49char **job_sections = NULL;
50int nr_job_sections = 0;
51char *exec_profile = NULL;
52int warnings_fatal = 0;
53int terse_version = 3;
54int is_backend = 0;
55int nr_clients = 0;
56int log_syslog = 0;
57
58int write_bw_log = 0;
59int read_only = 0;
60
61static int write_lat_log;
62
63static int prev_group_jobs;
64
65unsigned long fio_debug = 0;
66unsigned int fio_debug_jobno = -1;
67unsigned int *fio_debug_jobp = NULL;
68
69static char cmd_optstr[256];
70static int did_arg;
71
72#define FIO_CLIENT_FLAG (1 << 16)
73
74/*
75 * Command line options. These will contain the above, plus a few
76 * extra that only pertain to fio itself and not jobs.
77 */
78static struct option l_opts[FIO_NR_OPTIONS] = {
79 {
80 .name = (char *) "output",
81 .has_arg = required_argument,
82 .val = 'o' | FIO_CLIENT_FLAG,
83 },
84 {
85 .name = (char *) "timeout",
86 .has_arg = required_argument,
87 .val = 't' | FIO_CLIENT_FLAG,
88 },
89 {
90 .name = (char *) "latency-log",
91 .has_arg = required_argument,
92 .val = 'l' | FIO_CLIENT_FLAG,
93 },
94 {
95 .name = (char *) "bandwidth-log",
96 .has_arg = required_argument,
97 .val = 'b' | FIO_CLIENT_FLAG,
98 },
99 {
100 .name = (char *) "minimal",
101 .has_arg = optional_argument,
102 .val = 'm' | FIO_CLIENT_FLAG,
103 },
104 {
105 .name = (char *) "output-format",
106 .has_arg = optional_argument,
107 .val = 'F' | FIO_CLIENT_FLAG,
108 },
109 {
110 .name = (char *) "version",
111 .has_arg = no_argument,
112 .val = 'v' | FIO_CLIENT_FLAG,
113 },
114 {
115 .name = (char *) "help",
116 .has_arg = no_argument,
117 .val = 'h' | FIO_CLIENT_FLAG,
118 },
119 {
120 .name = (char *) "cmdhelp",
121 .has_arg = optional_argument,
122 .val = 'c' | FIO_CLIENT_FLAG,
123 },
124 {
125 .name = (char *) "enghelp",
126 .has_arg = optional_argument,
127 .val = 'i' | FIO_CLIENT_FLAG,
128 },
129 {
130 .name = (char *) "showcmd",
131 .has_arg = no_argument,
132 .val = 's' | FIO_CLIENT_FLAG,
133 },
134 {
135 .name = (char *) "readonly",
136 .has_arg = no_argument,
137 .val = 'r' | FIO_CLIENT_FLAG,
138 },
139 {
140 .name = (char *) "eta",
141 .has_arg = required_argument,
142 .val = 'e' | FIO_CLIENT_FLAG,
143 },
144 {
145 .name = (char *) "eta-newline",
146 .has_arg = required_argument,
147 .val = 'E' | FIO_CLIENT_FLAG,
148 },
149 {
150 .name = (char *) "debug",
151 .has_arg = required_argument,
152 .val = 'd' | FIO_CLIENT_FLAG,
153 },
154 {
155 .name = (char *) "parse-only",
156 .has_arg = no_argument,
157 .val = 'P' | FIO_CLIENT_FLAG,
158 },
159 {
160 .name = (char *) "section",
161 .has_arg = required_argument,
162 .val = 'x' | FIO_CLIENT_FLAG,
163 },
164 {
165 .name = (char *) "alloc-size",
166 .has_arg = required_argument,
167 .val = 'a' | FIO_CLIENT_FLAG,
168 },
169 {
170 .name = (char *) "profile",
171 .has_arg = required_argument,
172 .val = 'p' | FIO_CLIENT_FLAG,
173 },
174 {
175 .name = (char *) "warnings-fatal",
176 .has_arg = no_argument,
177 .val = 'w' | FIO_CLIENT_FLAG,
178 },
179 {
180 .name = (char *) "max-jobs",
181 .has_arg = required_argument,
182 .val = 'j' | FIO_CLIENT_FLAG,
183 },
184 {
185 .name = (char *) "terse-version",
186 .has_arg = required_argument,
187 .val = 'V' | FIO_CLIENT_FLAG,
188 },
189 {
190 .name = (char *) "server",
191 .has_arg = optional_argument,
192 .val = 'S',
193 },
194 { .name = (char *) "daemonize",
195 .has_arg = required_argument,
196 .val = 'D',
197 },
198 {
199 .name = (char *) "client",
200 .has_arg = required_argument,
201 .val = 'C',
202 },
203 {
204 .name = (char *) "cpuclock-test",
205 .has_arg = no_argument,
206 .val = 'T',
207 },
208 {
209 .name = (char *) "idle-prof",
210 .has_arg = required_argument,
211 .val = 'I',
212 },
213 {
214 .name = NULL,
215 },
216};
217
218static void free_shm(void)
219{
220 struct shmid_ds sbuf;
221
222 if (threads) {
223 void *tp = threads;
224
225 threads = NULL;
226 file_hash_exit();
227 flow_exit();
228 fio_debug_jobp = NULL;
229 shmdt(tp);
230 shmctl(shm_id, IPC_RMID, &sbuf);
231 }
232
233 scleanup();
234}
235
236/*
237 * The thread area is shared between the main process and the job
238 * threads/processes. So setup a shared memory segment that will hold
239 * all the job info. We use the end of the region for keeping track of
240 * open files across jobs, for file sharing.
241 */
242static int setup_thread_area(void)
243{
244 void *hash;
245
246 if (threads)
247 return 0;
248
249 /*
250 * 1024 is too much on some machines, scale max_jobs if
251 * we get a failure that looks like too large a shm segment
252 */
253 do {
254 size_t size = max_jobs * sizeof(struct thread_data);
255
256 size += file_hash_size;
257 size += sizeof(unsigned int);
258
259 shm_id = shmget(0, size, IPC_CREAT | 0600);
260 if (shm_id != -1)
261 break;
262 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
263 perror("shmget");
264 break;
265 }
266
267 max_jobs >>= 1;
268 } while (max_jobs);
269
270 if (shm_id == -1)
271 return 1;
272
273 threads = shmat(shm_id, NULL, 0);
274 if (threads == (void *) -1) {
275 perror("shmat");
276 return 1;
277 }
278
279 memset(threads, 0, max_jobs * sizeof(struct thread_data));
280 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
281 fio_debug_jobp = (void *) hash + file_hash_size;
282 *fio_debug_jobp = -1;
283 file_hash_init(hash);
284
285 flow_init();
286
287 return 0;
288}
289
290/*
291 * Return a free job structure.
292 */
293static struct thread_data *get_new_job(int global, struct thread_data *parent,
294 int preserve_eo)
295{
296 struct thread_data *td;
297
298 if (global)
299 return &def_thread;
300 if (setup_thread_area()) {
301 log_err("error: failed to setup shm segment\n");
302 return NULL;
303 }
304 if (thread_number >= max_jobs) {
305 log_err("error: maximum number of jobs (%d) reached.\n",
306 max_jobs);
307 return NULL;
308 }
309
310 td = &threads[thread_number++];
311 *td = *parent;
312
313 td->io_ops = NULL;
314 if (!preserve_eo)
315 td->eo = NULL;
316
317 td->o.uid = td->o.gid = -1U;
318
319 dup_files(td, parent);
320 fio_options_mem_dupe(td);
321
322 profile_add_hooks(td);
323
324 td->thread_number = thread_number;
325
326 if (!parent || !parent->o.group_reporting)
327 stat_number++;
328
329 return td;
330}
331
332static void put_job(struct thread_data *td)
333{
334 if (td == &def_thread)
335 return;
336
337 profile_td_exit(td);
338 flow_exit_job(td);
339
340 if (td->error)
341 log_info("fio: %s\n", td->verror);
342
343 fio_options_free(td);
344 if (td->io_ops)
345 free_ioengine(td);
346
347 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
348 thread_number--;
349}
350
351static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
352{
353 unsigned int bs = td->o.min_bs[ddir];
354
355 assert(ddir_rw(ddir));
356
357 if (td->o.rate[ddir])
358 td->rate_bps[ddir] = td->o.rate[ddir];
359 else
360 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
361
362 if (!td->rate_bps[ddir]) {
363 log_err("rate lower than supported\n");
364 return -1;
365 }
366
367 td->rate_pending_usleep[ddir] = 0;
368 return 0;
369}
370
371static int setup_rate(struct thread_data *td)
372{
373 int ret = 0;
374
375 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
376 ret = __setup_rate(td, DDIR_READ);
377 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
378 ret |= __setup_rate(td, DDIR_WRITE);
379 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
380 ret |= __setup_rate(td, DDIR_TRIM);
381
382 return ret;
383}
384
385static int fixed_block_size(struct thread_options *o)
386{
387 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
388 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
389 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
390 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
391 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
392}
393
394/*
395 * Lazy way of fixing up options that depend on each other. We could also
396 * define option callback handlers, but this is easier.
397 */
398static int fixup_options(struct thread_data *td)
399{
400 struct thread_options *o = &td->o;
401 int ret = 0;
402
403#ifndef FIO_HAVE_PSHARED_MUTEX
404 if (!o->use_thread) {
405 log_info("fio: this platform does not support process shared"
406 " mutexes, forcing use of threads. Use the 'thread'"
407 " option to get rid of this warning.\n");
408 o->use_thread = 1;
409 ret = warnings_fatal;
410 }
411#endif
412
413 if (o->write_iolog_file && o->read_iolog_file) {
414 log_err("fio: read iolog overrides write_iolog\n");
415 free(o->write_iolog_file);
416 o->write_iolog_file = NULL;
417 ret = warnings_fatal;
418 }
419
420 /*
421 * only really works with 1 file
422 */
423 if (o->zone_size && o->open_files > 1)
424 o->zone_size = 0;
425
426 /*
427 * If zone_range isn't specified, backward compatibility dictates it
428 * should be made equal to zone_size.
429 */
430 if (o->zone_size && !o->zone_range)
431 o->zone_range = o->zone_size;
432
433 /*
434 * Reads can do overwrites, we always need to pre-create the file
435 */
436 if (td_read(td) || td_rw(td))
437 o->overwrite = 1;
438
439 if (!o->min_bs[DDIR_READ])
440 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
441 if (!o->max_bs[DDIR_READ])
442 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
443 if (!o->min_bs[DDIR_WRITE])
444 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
445 if (!o->max_bs[DDIR_WRITE])
446 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
447 if (!o->min_bs[DDIR_TRIM])
448 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
449 if (!o->max_bs[DDIR_TRIM])
450 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
451
452
453 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
454 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
455
456 /*
457 * For random IO, allow blockalign offset other than min_bs.
458 */
459 if (!o->ba[DDIR_READ] || !td_random(td))
460 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
461 if (!o->ba[DDIR_WRITE] || !td_random(td))
462 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
463 if (!o->ba[DDIR_TRIM] || !td_random(td))
464 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
465
466 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
467 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
468 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
469 !o->norandommap) {
470 log_err("fio: Any use of blockalign= turns off randommap\n");
471 o->norandommap = 1;
472 ret = warnings_fatal;
473 }
474
475 if (!o->file_size_high)
476 o->file_size_high = o->file_size_low;
477
478 if (o->norandommap && o->verify != VERIFY_NONE
479 && !fixed_block_size(o)) {
480 log_err("fio: norandommap given for variable block sizes, "
481 "verify disabled\n");
482 o->verify = VERIFY_NONE;
483 ret = warnings_fatal;
484 }
485 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
486 log_err("fio: bs_unaligned may not work with raw io\n");
487
488 /*
489 * thinktime_spin must be less than thinktime
490 */
491 if (o->thinktime_spin > o->thinktime)
492 o->thinktime_spin = o->thinktime;
493
494 /*
495 * The low water mark cannot be bigger than the iodepth
496 */
497 if (o->iodepth_low > o->iodepth || !o->iodepth_low)
498 o->iodepth_low = o->iodepth;
499
500 /*
501 * If batch number isn't set, default to the same as iodepth
502 */
503 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
504 o->iodepth_batch = o->iodepth;
505
506 if (o->nr_files > td->files_index)
507 o->nr_files = td->files_index;
508
509 if (o->open_files > o->nr_files || !o->open_files)
510 o->open_files = o->nr_files;
511
512 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
513 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
514 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
515 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
516 log_err("fio: rate and rate_iops are mutually exclusive\n");
517 ret = 1;
518 }
519 if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
520 (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
521 (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
522 (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
523 (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
524 (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
525 log_err("fio: minimum rate exceeds rate\n");
526 ret = 1;
527 }
528
529 if (!o->timeout && o->time_based) {
530 log_err("fio: time_based requires a runtime/timeout setting\n");
531 o->time_based = 0;
532 ret = warnings_fatal;
533 }
534
535 if (o->fill_device && !o->size)
536 o->size = -1ULL;
537
538 if (o->verify != VERIFY_NONE) {
539 if (td_write(td) && o->do_verify && o->numjobs > 1) {
540 log_info("Multiple writers may overwrite blocks that "
541 "belong to other jobs. This can cause "
542 "verification failures.\n");
543 ret = warnings_fatal;
544 }
545
546 o->refill_buffers = 1;
547 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
548 !o->verify_interval)
549 o->verify_interval = o->min_bs[DDIR_WRITE];
550 }
551
552 if (o->pre_read) {
553 o->invalidate_cache = 0;
554 if (td->io_ops->flags & FIO_PIPEIO) {
555 log_info("fio: cannot pre-read files with an IO engine"
556 " that isn't seekable. Pre-read disabled.\n");
557 ret = warnings_fatal;
558 }
559 }
560
561#ifndef CONFIG_FDATASYNC
562 if (o->fdatasync_blocks) {
563 log_info("fio: this platform does not support fdatasync()"
564 " falling back to using fsync(). Use the 'fsync'"
565 " option instead of 'fdatasync' to get rid of"
566 " this warning\n");
567 o->fsync_blocks = o->fdatasync_blocks;
568 o->fdatasync_blocks = 0;
569 ret = warnings_fatal;
570 }
571#endif
572
573#ifdef WIN32
574 /*
575 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
576 * so fail if we're passed those flags
577 */
578 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
579 log_err("fio: Windows does not support direct or non-buffered io with"
580 " the synchronous ioengines. Use the 'windowsaio' ioengine"
581 " with 'direct=1' and 'iodepth=1' instead.\n");
582 ret = 1;
583 }
584#endif
585
586 /*
587 * For fully compressible data, just zero them at init time.
588 * It's faster than repeatedly filling it.
589 */
590 if (td->o.compress_percentage == 100) {
591 td->o.zero_buffers = 1;
592 td->o.compress_percentage = 0;
593 }
594
595 /*
596 * Using a non-uniform random distribution excludes usage of
597 * a random map
598 */
599 if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
600 td->o.norandommap = 1;
601
602 return ret;
603}
604
605/*
606 * This function leaks the buffer
607 */
608static char *to_kmg(unsigned int val)
609{
610 char *buf = malloc(32);
611 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
612 char *p = post;
613
614 do {
615 if (val & 1023)
616 break;
617
618 val >>= 10;
619 p++;
620 } while (*p);
621
622 snprintf(buf, 32, "%u%c", val, *p);
623 return buf;
624}
625
626/* External engines are specified by "external:name.o") */
627static const char *get_engine_name(const char *str)
628{
629 char *p = strstr(str, ":");
630
631 if (!p)
632 return str;
633
634 p++;
635 strip_blank_front(&p);
636 strip_blank_end(p);
637 return p;
638}
639
640static int exists_and_not_file(const char *filename)
641{
642 struct stat sb;
643
644 if (lstat(filename, &sb) == -1)
645 return 0;
646
647 /* \\.\ is the device namespace in Windows, where every file
648 * is a device node */
649 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
650 return 0;
651
652 return 1;
653}
654
655static void td_fill_rand_seeds_os(struct thread_data *td)
656{
657 os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state);
658 os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state);
659 os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state);
660
661 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
662 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state);
663
664 os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state);
665 os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state);
666
667 if (!td_random(td))
668 return;
669
670 if (td->o.rand_repeatable)
671 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
672
673 os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state);
674}
675
676static void td_fill_rand_seeds_internal(struct thread_data *td)
677{
678 init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
679 init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
680 init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
681
682 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
683 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
684
685 init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
686 init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
687
688 if (!td_random(td))
689 return;
690
691 if (td->o.rand_repeatable)
692 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
693
694 init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
695}
696
697void td_fill_rand_seeds(struct thread_data *td)
698{
699 if (td->o.use_os_rand)
700 td_fill_rand_seeds_os(td);
701 else
702 td_fill_rand_seeds_internal(td);
703
704 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
705}
706
707/*
708 * Initializes the ioengine configured for a job, if it has not been done so
709 * already.
710 */
711int ioengine_load(struct thread_data *td)
712{
713 const char *engine;
714
715 /*
716 * Engine has already been loaded.
717 */
718 if (td->io_ops)
719 return 0;
720
721 engine = get_engine_name(td->o.ioengine);
722 td->io_ops = load_ioengine(td, engine);
723 if (!td->io_ops) {
724 log_err("fio: failed to load engine %s\n", engine);
725 return 1;
726 }
727
728 if (td->io_ops->option_struct_size && td->io_ops->options) {
729 /*
730 * In cases where td->eo is set, clone it for a child thread.
731 * This requires that the parent thread has the same ioengine,
732 * but that requirement must be enforced by the code which
733 * cloned the thread.
734 */
735 void *origeo = td->eo;
736 /*
737 * Otherwise use the default thread options.
738 */
739 if (!origeo && td != &def_thread && def_thread.eo &&
740 def_thread.io_ops->options == td->io_ops->options)
741 origeo = def_thread.eo;
742
743 options_init(td->io_ops->options);
744 td->eo = malloc(td->io_ops->option_struct_size);
745 /*
746 * Use the default thread as an option template if this uses the
747 * same options structure and there are non-default options
748 * used.
749 */
750 if (origeo) {
751 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
752 options_mem_dupe(td->eo, td->io_ops->options);
753 } else {
754 memset(td->eo, 0, td->io_ops->option_struct_size);
755 fill_default_options(td->eo, td->io_ops->options);
756 }
757 *(struct thread_data **)td->eo = td;
758 }
759
760 return 0;
761}
762
763static void init_flags(struct thread_data *td)
764{
765 struct thread_options *o = &td->o;
766
767 if (o->verify_backlog)
768 td->flags |= TD_F_VER_BACKLOG;
769 if (o->trim_backlog)
770 td->flags |= TD_F_TRIM_BACKLOG;
771 if (o->read_iolog_file)
772 td->flags |= TD_F_READ_IOLOG;
773 if (o->refill_buffers)
774 td->flags |= TD_F_REFILL_BUFFERS;
775 if (o->scramble_buffers)
776 td->flags |= TD_F_SCRAMBLE_BUFFERS;
777 if (o->verify != VERIFY_NONE)
778 td->flags |= TD_F_VER_NONE;
779}
780
781static int setup_random_seeds(struct thread_data *td)
782{
783 unsigned long seed;
784 unsigned int i;
785
786 if (!td->o.rand_repeatable)
787 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
788
789 for (seed = 0x89, i = 0; i < 4; i++)
790 seed *= 0x9e370001UL;
791
792 for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
793 td->rand_seeds[i] = seed;
794 seed *= 0x9e370001UL;
795 }
796
797 td_fill_rand_seeds(td);
798 return 0;
799}
800
801/*
802 * Adds a job to the list of things todo. Sanitizes the various options
803 * to make sure we don't have conflicts, and initializes various
804 * members of td.
805 */
806static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
807{
808 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
809 "randread", "randwrite", "randrw",
810 "trim", NULL, NULL, NULL, "randtrim" };
811 unsigned int i;
812 char fname[PATH_MAX];
813 int numjobs, file_alloced;
814
815 /*
816 * the def_thread is just for options, it's not a real job
817 */
818 if (td == &def_thread)
819 return 0;
820
821 init_flags(td);
822
823 /*
824 * if we are just dumping the output command line, don't add the job
825 */
826 if (dump_cmdline || parse_only) {
827 put_job(td);
828 return 0;
829 }
830
831 if (profile_td_init(td))
832 goto err;
833
834 if (ioengine_load(td))
835 goto err;
836
837 if (td->o.use_thread)
838 nr_thread++;
839 else
840 nr_process++;
841
842 if (td->o.odirect)
843 td->io_ops->flags |= FIO_RAWIO;
844
845 file_alloced = 0;
846 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
847 file_alloced = 1;
848
849 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
850 add_file(td, jobname);
851 else {
852 for (i = 0; i < td->o.nr_files; i++) {
853 sprintf(fname, "%s.%d.%d", jobname,
854 td->thread_number, i);
855 add_file(td, fname);
856 }
857 }
858 }
859
860 if (fixup_options(td))
861 goto err;
862
863 flow_init_job(td);
864
865 /*
866 * IO engines only need this for option callbacks, and the address may
867 * change in subprocesses.
868 */
869 if (td->eo)
870 *(struct thread_data **)td->eo = NULL;
871
872 if (td->io_ops->flags & FIO_DISKLESSIO) {
873 struct fio_file *f;
874
875 for_each_file(td, f, i)
876 f->real_file_size = -1ULL;
877 }
878
879 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
880
881 td->ts.clat_percentiles = td->o.clat_percentiles;
882 td->ts.percentile_precision = td->o.percentile_precision;
883 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
884
885 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
886 td->ts.clat_stat[i].min_val = ULONG_MAX;
887 td->ts.slat_stat[i].min_val = ULONG_MAX;
888 td->ts.lat_stat[i].min_val = ULONG_MAX;
889 td->ts.bw_stat[i].min_val = ULONG_MAX;
890 }
891 td->ddir_seq_nr = td->o.ddir_seq_nr;
892
893 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
894 prev_group_jobs = 0;
895 groupid++;
896 }
897
898 td->groupid = groupid;
899 prev_group_jobs++;
900
901 if (setup_random_seeds(td)) {
902 td_verror(td, errno, "init_random_state");
903 goto err;
904 }
905
906 if (setup_rate(td))
907 goto err;
908
909 if (td->o.write_lat_log) {
910 setup_log(&td->lat_log, td->o.log_avg_msec);
911 setup_log(&td->slat_log, td->o.log_avg_msec);
912 setup_log(&td->clat_log, td->o.log_avg_msec);
913 }
914 if (td->o.write_bw_log)
915 setup_log(&td->bw_log, td->o.log_avg_msec);
916 if (td->o.write_iops_log)
917 setup_log(&td->iops_log, td->o.log_avg_msec);
918
919 if (!td->o.name)
920 td->o.name = strdup(jobname);
921
922 if (output_format == FIO_OUTPUT_NORMAL) {
923 if (!job_add_num) {
924 if (!strcmp(td->io_ops->name, "cpuio")) {
925 log_info("%s: ioengine=cpu, cpuload=%u,"
926 " cpucycle=%u\n", td->o.name,
927 td->o.cpuload,
928 td->o.cpucycle);
929 } else {
930 char *c1, *c2, *c3, *c4, *c5, *c6;
931
932 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
933 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
934 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
935 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
936 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]);
937 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]);
938
939 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s,"
940 " ioengine=%s, iodepth=%u\n",
941 td->o.name, td->groupid,
942 ddir_str[td->o.td_ddir],
943 c1, c2, c3, c4, c5, c6,
944 td->io_ops->name,
945 td->o.iodepth);
946
947 free(c1);
948 free(c2);
949 free(c3);
950 free(c4);
951 free(c5);
952 free(c6);
953 }
954 } else if (job_add_num == 1)
955 log_info("...\n");
956 }
957
958 /*
959 * recurse add identical jobs, clear numjobs and stonewall options
960 * as they don't apply to sub-jobs
961 */
962 numjobs = td->o.numjobs;
963 while (--numjobs) {
964 struct thread_data *td_new = get_new_job(0, td, 1);
965
966 if (!td_new)
967 goto err;
968
969 td_new->o.numjobs = 1;
970 td_new->o.stonewall = 0;
971 td_new->o.new_group = 0;
972
973 if (file_alloced) {
974 td_new->o.filename = NULL;
975 td_new->files_index = 0;
976 td_new->files_size = 0;
977 td_new->files = NULL;
978 }
979
980 job_add_num = numjobs - 1;
981
982 if (add_job(td_new, jobname, job_add_num))
983 goto err;
984 }
985
986 return 0;
987err:
988 put_job(td);
989 return -1;
990}
991
992/*
993 * Parse as if 'o' was a command line
994 */
995void add_job_opts(const char **o)
996{
997 struct thread_data *td, *td_parent;
998 int i, in_global = 1;
999 char jobname[32];
1000
1001 i = 0;
1002 td_parent = td = NULL;
1003 while (o[i]) {
1004 if (!strncmp(o[i], "name", 4)) {
1005 in_global = 0;
1006 if (td)
1007 add_job(td, jobname, 0);
1008 td = NULL;
1009 sprintf(jobname, "%s", o[i] + 5);
1010 }
1011 if (in_global && !td_parent)
1012 td_parent = get_new_job(1, &def_thread, 0);
1013 else if (!in_global && !td) {
1014 if (!td_parent)
1015 td_parent = &def_thread;
1016 td = get_new_job(0, td_parent, 0);
1017 }
1018 if (in_global)
1019 fio_options_parse(td_parent, (char **) &o[i], 1);
1020 else
1021 fio_options_parse(td, (char **) &o[i], 1);
1022 i++;
1023 }
1024
1025 if (td)
1026 add_job(td, jobname, 0);
1027}
1028
1029static int skip_this_section(const char *name)
1030{
1031 int i;
1032
1033 if (!nr_job_sections)
1034 return 0;
1035 if (!strncmp(name, "global", 6))
1036 return 0;
1037
1038 for (i = 0; i < nr_job_sections; i++)
1039 if (!strcmp(job_sections[i], name))
1040 return 0;
1041
1042 return 1;
1043}
1044
1045static int is_empty_or_comment(char *line)
1046{
1047 unsigned int i;
1048
1049 for (i = 0; i < strlen(line); i++) {
1050 if (line[i] == ';')
1051 return 1;
1052 if (line[i] == '#')
1053 return 1;
1054 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1055 return 0;
1056 }
1057
1058 return 1;
1059}
1060
1061/*
1062 * This is our [ini] type file parser.
1063 */
1064int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
1065{
1066 unsigned int global;
1067 struct thread_data *td;
1068 char *string, *name;
1069 FILE *f;
1070 char *p;
1071 int ret = 0, stonewall;
1072 int first_sect = 1;
1073 int skip_fgets = 0;
1074 int inside_skip = 0;
1075 char **opts;
1076 int i, alloc_opts, num_opts;
1077
1078 if (is_buf)
1079 f = NULL;
1080 else {
1081 if (!strcmp(file, "-"))
1082 f = stdin;
1083 else
1084 f = fopen(file, "r");
1085
1086 if (!f) {
1087 perror("fopen job file");
1088 return 1;
1089 }
1090 }
1091
1092 string = malloc(4096);
1093
1094 /*
1095 * it's really 256 + small bit, 280 should suffice
1096 */
1097 name = malloc(280);
1098 memset(name, 0, 280);
1099
1100 alloc_opts = 8;
1101 opts = malloc(sizeof(char *) * alloc_opts);
1102 num_opts = 0;
1103
1104 stonewall = stonewall_flag;
1105 do {
1106 /*
1107 * if skip_fgets is set, we already have loaded a line we
1108 * haven't handled.
1109 */
1110 if (!skip_fgets) {
1111 if (is_buf)
1112 p = strsep(&file, "\n");
1113 else
1114 p = fgets(string, 4096, f);
1115 if (!p)
1116 break;
1117 }
1118
1119 skip_fgets = 0;
1120 strip_blank_front(&p);
1121 strip_blank_end(p);
1122
1123 if (is_empty_or_comment(p))
1124 continue;
1125 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1126 if (inside_skip)
1127 continue;
1128 log_err("fio: option <%s> outside of [] job section\n",
1129 p);
1130 break;
1131 }
1132
1133 name[strlen(name) - 1] = '\0';
1134
1135 if (skip_this_section(name)) {
1136 inside_skip = 1;
1137 continue;
1138 } else
1139 inside_skip = 0;
1140
1141 global = !strncmp(name, "global", 6);
1142
1143 if (dump_cmdline) {
1144 if (first_sect)
1145 log_info("fio ");
1146 if (!global)
1147 log_info("--name=%s ", name);
1148 first_sect = 0;
1149 }
1150
1151 td = get_new_job(global, &def_thread, 0);
1152 if (!td) {
1153 ret = 1;
1154 break;
1155 }
1156
1157 /*
1158 * Seperate multiple job files by a stonewall
1159 */
1160 if (!global && stonewall) {
1161 td->o.stonewall = stonewall;
1162 stonewall = 0;
1163 }
1164
1165 num_opts = 0;
1166 memset(opts, 0, alloc_opts * sizeof(char *));
1167
1168 while (1) {
1169 if (is_buf)
1170 p = strsep(&file, "\n");
1171 else
1172 p = fgets(string, 4096, f);
1173 if (!p)
1174 break;
1175
1176 if (is_empty_or_comment(p))
1177 continue;
1178
1179 strip_blank_front(&p);
1180
1181 /*
1182 * new section, break out and make sure we don't
1183 * fgets() a new line at the top.
1184 */
1185 if (p[0] == '[') {
1186 skip_fgets = 1;
1187 break;
1188 }
1189
1190 strip_blank_end(p);
1191
1192 if (num_opts == alloc_opts) {
1193 alloc_opts <<= 1;
1194 opts = realloc(opts,
1195 alloc_opts * sizeof(char *));
1196 }
1197
1198 opts[num_opts] = strdup(p);
1199 num_opts++;
1200 }
1201
1202 ret = fio_options_parse(td, opts, num_opts);
1203 if (!ret) {
1204 if (dump_cmdline)
1205 for (i = 0; i < num_opts; i++)
1206 log_info("--%s ", opts[i]);
1207
1208 ret = add_job(td, name, 0);
1209 } else {
1210 log_err("fio: job %s dropped\n", name);
1211 put_job(td);
1212 }
1213
1214 for (i = 0; i < num_opts; i++)
1215 free(opts[i]);
1216 num_opts = 0;
1217 } while (!ret);
1218
1219 if (dump_cmdline)
1220 log_info("\n");
1221
1222 i = 0;
1223 while (i < nr_job_sections) {
1224 free(job_sections[i]);
1225 i++;
1226 }
1227
1228 for (i = 0; i < num_opts; i++)
1229 free(opts[i]);
1230
1231 free(string);
1232 free(name);
1233 free(opts);
1234 if (!is_buf && f != stdin)
1235 fclose(f);
1236 return ret;
1237}
1238
1239static int fill_def_thread(void)
1240{
1241 memset(&def_thread, 0, sizeof(def_thread));
1242
1243 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1244 def_thread.o.timeout = def_timeout;
1245 def_thread.o.error_dump = 1;
1246 /*
1247 * fill default options
1248 */
1249 fio_fill_default_options(&def_thread);
1250 return 0;
1251}
1252
1253static void usage(const char *name)
1254{
1255 printf("%s\n", fio_version_string);
1256 printf("%s [options] [job options] <job file(s)>\n", name);
1257 printf(" --debug=options\tEnable debug logging. May be one/more of:\n"
1258 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1259 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1260 printf(" --parse-only\t\tParse options only, don't start any IO\n");
1261 printf(" --output\t\tWrite output to file\n");
1262 printf(" --runtime\t\tRuntime in seconds\n");
1263 printf(" --latency-log\t\tGenerate per-job latency logs\n");
1264 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n");
1265 printf(" --minimal\t\tMinimal (terse) output\n");
1266 printf(" --output-format=x\tOutput format (terse,json,normal)\n");
1267 printf(" --terse-version=x\tSet terse version output format to 'x'\n");
1268 printf(" --version\t\tPrint version info and exit\n");
1269 printf(" --help\t\tPrint this page\n");
1270 printf(" --cpuclock-test\tPerform test/validation of CPU clock\n");
1271 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1272 " them\n");
1273 printf(" --enghelp=engine\tPrint ioengine help, or list"
1274 " available ioengines\n");
1275 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
1276 " cmd\n");
1277 printf(" --showcmd\t\tTurn a job file into command line options\n");
1278 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
1279 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
1280 printf(" --eta-newline=time\tForce a new line for every 'time'");
1281 printf(" period passed\n");
1282 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
1283 " writes\n");
1284 printf(" --section=name\tOnly run specified section in job file\n");
1285 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
1286 " (def 1024)\n");
1287 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
1288 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1289 printf(" --server=args\t\tStart a backend fio server\n");
1290 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
1291 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
1292 printf(" --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1293 "\t\t\t(option=system,percpu) or run unit work\n"
1294 "\t\t\tcalibration only (option=calibrate)\n");
1295 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1296 printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
1297}
1298
1299#ifdef FIO_INC_DEBUG
1300struct debug_level debug_levels[] = {
1301 { .name = "process", .shift = FD_PROCESS, },
1302 { .name = "file", .shift = FD_FILE, },
1303 { .name = "io", .shift = FD_IO, },
1304 { .name = "mem", .shift = FD_MEM, },
1305 { .name = "blktrace", .shift = FD_BLKTRACE },
1306 { .name = "verify", .shift = FD_VERIFY },
1307 { .name = "random", .shift = FD_RANDOM },
1308 { .name = "parse", .shift = FD_PARSE },
1309 { .name = "diskutil", .shift = FD_DISKUTIL },
1310 { .name = "job", .shift = FD_JOB },
1311 { .name = "mutex", .shift = FD_MUTEX },
1312 { .name = "profile", .shift = FD_PROFILE },
1313 { .name = "time", .shift = FD_TIME },
1314 { .name = "net", .shift = FD_NET },
1315 { .name = NULL, },
1316};
1317
1318static int set_debug(const char *string)
1319{
1320 struct debug_level *dl;
1321 char *p = (char *) string;
1322 char *opt;
1323 int i;
1324
1325 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1326 log_info("fio: dumping debug options:");
1327 for (i = 0; debug_levels[i].name; i++) {
1328 dl = &debug_levels[i];
1329 log_info("%s,", dl->name);
1330 }
1331 log_info("all\n");
1332 return 1;
1333 }
1334
1335 while ((opt = strsep(&p, ",")) != NULL) {
1336 int found = 0;
1337
1338 if (!strncmp(opt, "all", 3)) {
1339 log_info("fio: set all debug options\n");
1340 fio_debug = ~0UL;
1341 continue;
1342 }
1343
1344 for (i = 0; debug_levels[i].name; i++) {
1345 dl = &debug_levels[i];
1346 found = !strncmp(opt, dl->name, strlen(dl->name));
1347 if (!found)
1348 continue;
1349
1350 if (dl->shift == FD_JOB) {
1351 opt = strchr(opt, ':');
1352 if (!opt) {
1353 log_err("fio: missing job number\n");
1354 break;
1355 }
1356 opt++;
1357 fio_debug_jobno = atoi(opt);
1358 log_info("fio: set debug jobno %d\n",
1359 fio_debug_jobno);
1360 } else {
1361 log_info("fio: set debug option %s\n", opt);
1362 fio_debug |= (1UL << dl->shift);
1363 }
1364 break;
1365 }
1366
1367 if (!found)
1368 log_err("fio: debug mask %s not found\n", opt);
1369 }
1370 return 0;
1371}
1372#else
1373static int set_debug(const char *string)
1374{
1375 log_err("fio: debug tracing not included in build\n");
1376 return 1;
1377}
1378#endif
1379
1380static void fio_options_fill_optstring(void)
1381{
1382 char *ostr = cmd_optstr;
1383 int i, c;
1384
1385 c = i = 0;
1386 while (l_opts[i].name) {
1387 ostr[c++] = l_opts[i].val;
1388 if (l_opts[i].has_arg == required_argument)
1389 ostr[c++] = ':';
1390 else if (l_opts[i].has_arg == optional_argument) {
1391 ostr[c++] = ':';
1392 ostr[c++] = ':';
1393 }
1394 i++;
1395 }
1396 ostr[c] = '\0';
1397}
1398
1399static int client_flag_set(char c)
1400{
1401 int i;
1402
1403 i = 0;
1404 while (l_opts[i].name) {
1405 int val = l_opts[i].val;
1406
1407 if (c == (val & 0xff))
1408 return (val & FIO_CLIENT_FLAG);
1409
1410 i++;
1411 }
1412
1413 return 0;
1414}
1415
1416void parse_cmd_client(void *client, char *opt)
1417{
1418 fio_client_add_cmd_option(client, opt);
1419}
1420
1421int parse_cmd_line(int argc, char *argv[])
1422{
1423 struct thread_data *td = NULL;
1424 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1425 char *ostr = cmd_optstr;
1426 void *pid_file = NULL;
1427 void *cur_client = NULL;
1428 int backend = 0;
1429
1430 /*
1431 * Reset optind handling, since we may call this multiple times
1432 * for the backend.
1433 */
1434 optind = 1;
1435
1436 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1437 did_arg = 1;
1438
1439 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1440 parse_cmd_client(cur_client, argv[optind - 1]);
1441 c &= ~FIO_CLIENT_FLAG;
1442 }
1443
1444 switch (c) {
1445 case 'a':
1446 smalloc_pool_size = atoi(optarg);
1447 break;
1448 case 't':
1449 def_timeout = atoi(optarg);
1450 break;
1451 case 'l':
1452 write_lat_log = 1;
1453 break;
1454 case 'b':
1455 write_bw_log = 1;
1456 break;
1457 case 'o':
1458 f_out = fopen(optarg, "w+");
1459 if (!f_out) {
1460 perror("fopen output");
1461 exit(1);
1462 }
1463 f_err = f_out;
1464 break;
1465 case 'm':
1466 output_format = FIO_OUTPUT_TERSE;
1467 break;
1468 case 'F':
1469 if (!strcmp(optarg, "minimal") ||
1470 !strcmp(optarg, "terse") ||
1471 !strcmp(optarg, "csv"))
1472 output_format = FIO_OUTPUT_TERSE;
1473 else if (!strcmp(optarg, "json"))
1474 output_format = FIO_OUTPUT_JSON;
1475 else
1476 output_format = FIO_OUTPUT_NORMAL;
1477 break;
1478 case 'h':
1479 if (!cur_client) {
1480 usage(argv[0]);
1481 do_exit++;
1482 }
1483 break;
1484 case 'c':
1485 if (!cur_client) {
1486 fio_show_option_help(optarg);
1487 do_exit++;
1488 }
1489 break;
1490 case 'i':
1491 if (!cur_client) {
1492 fio_show_ioengine_help(optarg);
1493 do_exit++;
1494 }
1495 break;
1496 case 's':
1497 dump_cmdline = 1;
1498 break;
1499 case 'r':
1500 read_only = 1;
1501 break;
1502 case 'v':
1503 if (!cur_client) {
1504 log_info("%s\n", fio_version_string);
1505 do_exit++;
1506 }
1507 break;
1508 case 'V':
1509 terse_version = atoi(optarg);
1510 if (!(terse_version == 2 || terse_version == 3 ||
1511 terse_version == 4)) {
1512 log_err("fio: bad terse version format\n");
1513 exit_val = 1;
1514 do_exit++;
1515 }
1516 break;
1517 case 'e':
1518 if (!strcmp("always", optarg))
1519 eta_print = FIO_ETA_ALWAYS;
1520 else if (!strcmp("never", optarg))
1521 eta_print = FIO_ETA_NEVER;
1522 break;
1523 case 'E': {
1524 long long t = 0;
1525
1526 if (str_to_decimal(optarg, &t, 0, NULL)) {
1527 log_err("fio: failed parsing eta time %s\n", optarg);
1528 exit_val = 1;
1529 do_exit++;
1530 }
1531 eta_new_line = t;
1532 break;
1533 }
1534 case 'd':
1535 if (set_debug(optarg))
1536 do_exit++;
1537 break;
1538 case 'P':
1539 parse_only = 1;
1540 break;
1541 case 'x': {
1542 size_t new_size;
1543
1544 if (!strcmp(optarg, "global")) {
1545 log_err("fio: can't use global as only "
1546 "section\n");
1547 do_exit++;
1548 exit_val = 1;
1549 break;
1550 }
1551 new_size = (nr_job_sections + 1) * sizeof(char *);
1552 job_sections = realloc(job_sections, new_size);
1553 job_sections[nr_job_sections] = strdup(optarg);
1554 nr_job_sections++;
1555 break;
1556 }
1557 case 'p':
1558 exec_profile = strdup(optarg);
1559 break;
1560 case FIO_GETOPT_JOB: {
1561 const char *opt = l_opts[lidx].name;
1562 char *val = optarg;
1563
1564 if (!strncmp(opt, "name", 4) && td) {
1565 ret = add_job(td, td->o.name ?: "fio", 0);
1566 if (ret)
1567 return 0;
1568 td = NULL;
1569 }
1570 if (!td) {
1571 int is_section = !strncmp(opt, "name", 4);
1572 int global = 0;
1573
1574 if (!is_section || !strncmp(val, "global", 6))
1575 global = 1;
1576
1577 if (is_section && skip_this_section(val))
1578 continue;
1579
1580 td = get_new_job(global, &def_thread, 1);
1581 if (!td || ioengine_load(td))
1582 return 0;
1583 fio_options_set_ioengine_opts(l_opts, td);
1584 }
1585
1586 ret = fio_cmd_option_parse(td, opt, val);
1587
1588 if (!ret && !strcmp(opt, "ioengine")) {
1589 free_ioengine(td);
1590 if (ioengine_load(td))
1591 return 0;
1592 fio_options_set_ioengine_opts(l_opts, td);
1593 }
1594 break;
1595 }
1596 case FIO_GETOPT_IOENGINE: {
1597 const char *opt = l_opts[lidx].name;
1598 char *val = optarg;
1599 opt = l_opts[lidx].name;
1600 val = optarg;
1601 ret = fio_cmd_ioengine_option_parse(td, opt, val);
1602 break;
1603 }
1604 case 'w':
1605 warnings_fatal = 1;
1606 break;
1607 case 'j':
1608 max_jobs = atoi(optarg);
1609 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1610 log_err("fio: invalid max jobs: %d\n", max_jobs);
1611 do_exit++;
1612 exit_val = 1;
1613 }
1614 break;
1615 case 'S':
1616 if (nr_clients) {
1617 log_err("fio: can't be both client and server\n");
1618 do_exit++;
1619 exit_val = 1;
1620 break;
1621 }
1622 if (optarg)
1623 fio_server_set_arg(optarg);
1624 is_backend = 1;
1625 backend = 1;
1626 break;
1627 case 'D':
1628 pid_file = strdup(optarg);
1629 break;
1630 case 'I':
1631 if ((ret = fio_idle_prof_parse_opt(optarg))) {
1632 /* exit on error and calibration only */
1633 do_exit++;
1634 if (ret == -1)
1635 exit_val = 1;
1636 }
1637 break;
1638 case 'C':
1639 if (is_backend) {
1640 log_err("fio: can't be both client and server\n");
1641 do_exit++;
1642 exit_val = 1;
1643 break;
1644 }
1645 if (fio_client_add(optarg, &cur_client)) {
1646 log_err("fio: failed adding client %s\n", optarg);
1647 do_exit++;
1648 exit_val = 1;
1649 break;
1650 }
1651 /*
1652 * If the next argument exists and isn't an option,
1653 * assume it's a job file for this client only.
1654 */
1655 while (optind < argc) {
1656 if (!strncmp(argv[optind], "--", 2) ||
1657 !strncmp(argv[optind], "-", 1))
1658 break;
1659
1660 fio_client_add_ini_file(cur_client, argv[optind]);
1661 optind++;
1662 }
1663 break;
1664 case 'T':
1665 do_exit++;
1666 exit_val = fio_monotonic_clocktest();
1667 break;
1668 case '?':
1669 log_err("%s: unrecognized option '%s'\n", argv[0],
1670 argv[optind - 1]);
1671 default:
1672 do_exit++;
1673 exit_val = 1;
1674 break;
1675 }
1676 if (do_exit)
1677 break;
1678 }
1679
1680 if (do_exit) {
1681 if (exit_val && !(is_backend || nr_clients))
1682 exit(exit_val);
1683 }
1684
1685 if (nr_clients && fio_clients_connect()) {
1686 do_exit++;
1687 exit_val = 1;
1688 return -1;
1689 }
1690
1691 if (is_backend && backend)
1692 return fio_start_server(pid_file);
1693
1694 if (td) {
1695 if (!ret)
1696 ret = add_job(td, td->o.name ?: "fio", 0);
1697 }
1698
1699 while (!ret && optind < argc) {
1700 ini_idx++;
1701 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1702 ini_file[ini_idx - 1] = strdup(argv[optind]);
1703 optind++;
1704 }
1705
1706 return ini_idx;
1707}
1708
1709int parse_options(int argc, char *argv[])
1710{
1711 int job_files, i;
1712
1713 f_out = stdout;
1714 f_err = stderr;
1715
1716 fio_options_fill_optstring();
1717 fio_options_dup_and_init(l_opts);
1718
1719 atexit(free_shm);
1720
1721 if (fill_def_thread())
1722 return 1;
1723
1724 job_files = parse_cmd_line(argc, argv);
1725
1726 if (job_files > 0) {
1727 for (i = 0; i < job_files; i++) {
1728 if (fill_def_thread())
1729 return 1;
1730 if (nr_clients) {
1731 if (fio_clients_send_ini(ini_file[i]))
1732 return 1;
1733 free(ini_file[i]);
1734 } else if (!is_backend) {
1735 if (parse_jobs_ini(ini_file[i], 0, i))
1736 return 1;
1737 free(ini_file[i]);
1738 }
1739 }
1740 } else if (nr_clients) {
1741 if (fill_def_thread())
1742 return 1;
1743 if (fio_clients_send_ini(NULL))
1744 return 1;
1745 }
1746
1747 free(ini_file);
1748 fio_options_free(&def_thread);
1749
1750 if (!thread_number) {
1751 if (dump_cmdline || parse_only)
1752 return 0;
1753 if (exec_profile)
1754 return 0;
1755 if (is_backend || nr_clients)
1756 return 0;
1757 if (did_arg)
1758 return 0;
1759
1760 log_err("No jobs(s) defined\n\n");
1761
1762 if (!did_arg) {
1763 usage(argv[0]);
1764 return 1;
1765 }
1766
1767 return 0;
1768 }
1769
1770 if (def_thread.o.gtod_offload) {
1771 fio_gtod_init();
1772 fio_gtod_offload = 1;
1773 fio_gtod_cpu = def_thread.o.gtod_cpu;
1774 }
1775
1776 if (output_format == FIO_OUTPUT_NORMAL)
1777 log_info("%s\n", fio_version_string);
1778
1779 return 0;
1780}
fio - Flexible IO Tester