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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#include <sys/types.h>
13#include <sys/stat.h>
14
15#include "fio.h"
16#ifndef FIO_NO_HAVE_SHM_H
17#include <sys/shm.h>
18#endif
19
20#include "parse.h"
21#include "smalloc.h"
22#include "filehash.h"
23#include "verify.h"
24#include "profile.h"
25#include "server.h"
26#include "idletime.h"
27
28#include "lib/getopt.h"
29
30const char fio_version_string[] = FIO_VERSION;
31
32#define FIO_RANDSEED (0xb1899bedUL)
33
34static char **ini_file;
35static int max_jobs = FIO_MAX_JOBS;
36static int dump_cmdline;
37static int def_timeout;
38static int parse_only;
39
40static struct thread_data def_thread;
41struct thread_data *threads = NULL;
42
43int exitall_on_terminate = 0;
44int output_format = FIO_OUTPUT_NORMAL;
45int eta_print = FIO_ETA_AUTO;
46int eta_new_line = 0;
47unsigned long long mlock_size = 0;
48FILE *f_out = NULL;
49FILE *f_err = NULL;
50char **job_sections = NULL;
51int nr_job_sections = 0;
52char *exec_profile = NULL;
53int warnings_fatal = 0;
54int terse_version = 3;
55int is_backend = 0;
56int nr_clients = 0;
57int log_syslog = 0;
58
59int write_bw_log = 0;
60int read_only = 0;
61
62static int write_lat_log;
63
64static int prev_group_jobs;
65
66unsigned long fio_debug = 0;
67unsigned int fio_debug_jobno = -1;
68unsigned int *fio_debug_jobp = NULL;
69
70static char cmd_optstr[256];
71static int did_arg;
72
73#define FIO_CLIENT_FLAG (1 << 16)
74
75/*
76 * Command line options. These will contain the above, plus a few
77 * extra that only pertain to fio itself and not jobs.
78 */
79static struct option l_opts[FIO_NR_OPTIONS] = {
80 {
81 .name = (char *) "output",
82 .has_arg = required_argument,
83 .val = 'o' | FIO_CLIENT_FLAG,
84 },
85 {
86 .name = (char *) "timeout",
87 .has_arg = required_argument,
88 .val = 't' | FIO_CLIENT_FLAG,
89 },
90 {
91 .name = (char *) "latency-log",
92 .has_arg = required_argument,
93 .val = 'l' | FIO_CLIENT_FLAG,
94 },
95 {
96 .name = (char *) "bandwidth-log",
97 .has_arg = required_argument,
98 .val = 'b' | FIO_CLIENT_FLAG,
99 },
100 {
101 .name = (char *) "minimal",
102 .has_arg = optional_argument,
103 .val = 'm' | FIO_CLIENT_FLAG,
104 },
105 {
106 .name = (char *) "output-format",
107 .has_arg = optional_argument,
108 .val = 'F' | FIO_CLIENT_FLAG,
109 },
110 {
111 .name = (char *) "version",
112 .has_arg = no_argument,
113 .val = 'v' | FIO_CLIENT_FLAG,
114 },
115 {
116 .name = (char *) "help",
117 .has_arg = no_argument,
118 .val = 'h' | FIO_CLIENT_FLAG,
119 },
120 {
121 .name = (char *) "cmdhelp",
122 .has_arg = optional_argument,
123 .val = 'c' | FIO_CLIENT_FLAG,
124 },
125 {
126 .name = (char *) "enghelp",
127 .has_arg = optional_argument,
128 .val = 'i' | FIO_CLIENT_FLAG,
129 },
130 {
131 .name = (char *) "showcmd",
132 .has_arg = no_argument,
133 .val = 's' | FIO_CLIENT_FLAG,
134 },
135 {
136 .name = (char *) "readonly",
137 .has_arg = no_argument,
138 .val = 'r' | FIO_CLIENT_FLAG,
139 },
140 {
141 .name = (char *) "eta",
142 .has_arg = required_argument,
143 .val = 'e' | FIO_CLIENT_FLAG,
144 },
145 {
146 .name = (char *) "eta-newline",
147 .has_arg = required_argument,
148 .val = 'E' | FIO_CLIENT_FLAG,
149 },
150 {
151 .name = (char *) "debug",
152 .has_arg = required_argument,
153 .val = 'd' | FIO_CLIENT_FLAG,
154 },
155 {
156 .name = (char *) "parse-only",
157 .has_arg = no_argument,
158 .val = 'P' | FIO_CLIENT_FLAG,
159 },
160 {
161 .name = (char *) "section",
162 .has_arg = required_argument,
163 .val = 'x' | FIO_CLIENT_FLAG,
164 },
165 {
166 .name = (char *) "alloc-size",
167 .has_arg = required_argument,
168 .val = 'a' | FIO_CLIENT_FLAG,
169 },
170 {
171 .name = (char *) "profile",
172 .has_arg = required_argument,
173 .val = 'p' | FIO_CLIENT_FLAG,
174 },
175 {
176 .name = (char *) "warnings-fatal",
177 .has_arg = no_argument,
178 .val = 'w' | FIO_CLIENT_FLAG,
179 },
180 {
181 .name = (char *) "max-jobs",
182 .has_arg = required_argument,
183 .val = 'j' | FIO_CLIENT_FLAG,
184 },
185 {
186 .name = (char *) "terse-version",
187 .has_arg = required_argument,
188 .val = 'V' | FIO_CLIENT_FLAG,
189 },
190 {
191 .name = (char *) "server",
192 .has_arg = optional_argument,
193 .val = 'S',
194 },
195 { .name = (char *) "daemonize",
196 .has_arg = required_argument,
197 .val = 'D',
198 },
199 {
200 .name = (char *) "client",
201 .has_arg = required_argument,
202 .val = 'C',
203 },
204 {
205 .name = (char *) "cpuclock-test",
206 .has_arg = no_argument,
207 .val = 'T',
208 },
209 {
210 .name = (char *) "idle-prof",
211 .has_arg = required_argument,
212 .val = 'I',
213 },
214 {
215 .name = NULL,
216 },
217};
218
219static void free_shm(void)
220{
221 struct shmid_ds sbuf;
222
223 if (threads) {
224 void *tp = threads;
225
226 threads = NULL;
227 file_hash_exit();
228 flow_exit();
229 fio_debug_jobp = NULL;
230 shmdt(tp);
231 shmctl(shm_id, IPC_RMID, &sbuf);
232 }
233
234 scleanup();
235}
236
237/*
238 * The thread area is shared between the main process and the job
239 * threads/processes. So setup a shared memory segment that will hold
240 * all the job info. We use the end of the region for keeping track of
241 * open files across jobs, for file sharing.
242 */
243static int setup_thread_area(void)
244{
245 void *hash;
246
247 if (threads)
248 return 0;
249
250 /*
251 * 1024 is too much on some machines, scale max_jobs if
252 * we get a failure that looks like too large a shm segment
253 */
254 do {
255 size_t size = max_jobs * sizeof(struct thread_data);
256
257 size += file_hash_size;
258 size += sizeof(unsigned int);
259
260 shm_id = shmget(0, size, IPC_CREAT | 0600);
261 if (shm_id != -1)
262 break;
263 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
264 perror("shmget");
265 break;
266 }
267
268 max_jobs >>= 1;
269 } while (max_jobs);
270
271 if (shm_id == -1)
272 return 1;
273
274 threads = shmat(shm_id, NULL, 0);
275 if (threads == (void *) -1) {
276 perror("shmat");
277 return 1;
278 }
279
280 memset(threads, 0, max_jobs * sizeof(struct thread_data));
281 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
282 fio_debug_jobp = (void *) hash + file_hash_size;
283 *fio_debug_jobp = -1;
284 file_hash_init(hash);
285
286 flow_init();
287
288 return 0;
289}
290
291/*
292 * Return a free job structure.
293 */
294static struct thread_data *get_new_job(int global, struct thread_data *parent,
295 int preserve_eo)
296{
297 struct thread_data *td;
298
299 if (global)
300 return &def_thread;
301 if (setup_thread_area()) {
302 log_err("error: failed to setup shm segment\n");
303 return NULL;
304 }
305 if (thread_number >= max_jobs) {
306 log_err("error: maximum number of jobs (%d) reached.\n",
307 max_jobs);
308 return NULL;
309 }
310
311 td = &threads[thread_number++];
312 *td = *parent;
313
314 td->io_ops = NULL;
315 if (!preserve_eo)
316 td->eo = NULL;
317
318 td->o.uid = td->o.gid = -1U;
319
320 dup_files(td, parent);
321 fio_options_mem_dupe(td);
322
323 profile_add_hooks(td);
324
325 td->thread_number = thread_number;
326
327 if (!parent || !parent->o.group_reporting)
328 stat_number++;
329
330 return td;
331}
332
333static void put_job(struct thread_data *td)
334{
335 if (td == &def_thread)
336 return;
337
338 profile_td_exit(td);
339 flow_exit_job(td);
340
341 if (td->error)
342 log_info("fio: %s\n", td->verror);
343
344 fio_options_free(td);
345 if (td->io_ops)
346 free_ioengine(td);
347
348 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
349 thread_number--;
350}
351
352static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
353{
354 unsigned int bs = td->o.min_bs[ddir];
355
356 assert(ddir_rw(ddir));
357
358 if (td->o.rate[ddir])
359 td->rate_bps[ddir] = td->o.rate[ddir];
360 else
361 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
362
363 if (!td->rate_bps[ddir]) {
364 log_err("rate lower than supported\n");
365 return -1;
366 }
367
368 td->rate_pending_usleep[ddir] = 0;
369 return 0;
370}
371
372static int setup_rate(struct thread_data *td)
373{
374 int ret = 0;
375
376 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
377 ret = __setup_rate(td, DDIR_READ);
378 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
379 ret |= __setup_rate(td, DDIR_WRITE);
380 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
381 ret |= __setup_rate(td, DDIR_TRIM);
382
383 return ret;
384}
385
386static int fixed_block_size(struct thread_options *o)
387{
388 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
389 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
390 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
391 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
392 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
393}
394
395/*
396 * Lazy way of fixing up options that depend on each other. We could also
397 * define option callback handlers, but this is easier.
398 */
399static int fixup_options(struct thread_data *td)
400{
401 struct thread_options *o = &td->o;
402 int ret = 0;
403
404#ifndef FIO_HAVE_PSHARED_MUTEX
405 if (!o->use_thread) {
406 log_info("fio: this platform does not support process shared"
407 " mutexes, forcing use of threads. Use the 'thread'"
408 " option to get rid of this warning.\n");
409 o->use_thread = 1;
410 ret = warnings_fatal;
411 }
412#endif
413
414 if (o->write_iolog_file && o->read_iolog_file) {
415 log_err("fio: read iolog overrides write_iolog\n");
416 free(o->write_iolog_file);
417 o->write_iolog_file = NULL;
418 ret = warnings_fatal;
419 }
420
421 /*
422 * only really works with 1 file
423 */
424 if (o->zone_size && o->open_files > 1)
425 o->zone_size = 0;
426
427 /*
428 * If zone_range isn't specified, backward compatibility dictates it
429 * should be made equal to zone_size.
430 */
431 if (o->zone_size && !o->zone_range)
432 o->zone_range = o->zone_size;
433
434 /*
435 * Reads can do overwrites, we always need to pre-create the file
436 */
437 if (td_read(td) || td_rw(td))
438 o->overwrite = 1;
439
440 if (!o->min_bs[DDIR_READ])
441 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
442 if (!o->max_bs[DDIR_READ])
443 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
444 if (!o->min_bs[DDIR_WRITE])
445 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
446 if (!o->max_bs[DDIR_WRITE])
447 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
448 if (!o->min_bs[DDIR_TRIM])
449 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
450 if (!o->max_bs[DDIR_TRIM])
451 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
452
453
454 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
455 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
456
457 /*
458 * For random IO, allow blockalign offset other than min_bs.
459 */
460 if (!o->ba[DDIR_READ] || !td_random(td))
461 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
462 if (!o->ba[DDIR_WRITE] || !td_random(td))
463 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
464 if (!o->ba[DDIR_TRIM] || !td_random(td))
465 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
466
467 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
468 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
469 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
470 !o->norandommap) {
471 log_err("fio: Any use of blockalign= turns off randommap\n");
472 o->norandommap = 1;
473 ret = warnings_fatal;
474 }
475
476 if (!o->file_size_high)
477 o->file_size_high = o->file_size_low;
478
479 if (o->norandommap && o->verify != VERIFY_NONE
480 && !fixed_block_size(o)) {
481 log_err("fio: norandommap given for variable block sizes, "
482 "verify disabled\n");
483 o->verify = VERIFY_NONE;
484 ret = warnings_fatal;
485 }
486 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
487 log_err("fio: bs_unaligned may not work with raw io\n");
488
489 /*
490 * thinktime_spin must be less than thinktime
491 */
492 if (o->thinktime_spin > o->thinktime)
493 o->thinktime_spin = o->thinktime;
494
495 /*
496 * The low water mark cannot be bigger than the iodepth
497 */
498 if (o->iodepth_low > o->iodepth || !o->iodepth_low)
499 o->iodepth_low = o->iodepth;
500
501 /*
502 * If batch number isn't set, default to the same as iodepth
503 */
504 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
505 o->iodepth_batch = o->iodepth;
506
507 if (o->nr_files > td->files_index)
508 o->nr_files = td->files_index;
509
510 if (o->open_files > o->nr_files || !o->open_files)
511 o->open_files = o->nr_files;
512
513 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
514 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
515 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
516 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
517 log_err("fio: rate and rate_iops are mutually exclusive\n");
518 ret = 1;
519 }
520 if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
521 (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
522 (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
523 (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
524 (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
525 (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
526 log_err("fio: minimum rate exceeds rate\n");
527 ret = 1;
528 }
529
530 if (!o->timeout && o->time_based) {
531 log_err("fio: time_based requires a runtime/timeout setting\n");
532 o->time_based = 0;
533 ret = warnings_fatal;
534 }
535
536 if (o->fill_device && !o->size)
537 o->size = -1ULL;
538
539 if (o->verify != VERIFY_NONE) {
540 if (td_write(td) && o->do_verify && o->numjobs > 1) {
541 log_info("Multiple writers may overwrite blocks that "
542 "belong to other jobs. This can cause "
543 "verification failures.\n");
544 ret = warnings_fatal;
545 }
546
547 o->refill_buffers = 1;
548 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
549 !o->verify_interval)
550 o->verify_interval = o->min_bs[DDIR_WRITE];
551 }
552
553 if (o->pre_read) {
554 o->invalidate_cache = 0;
555 if (td->io_ops->flags & FIO_PIPEIO) {
556 log_info("fio: cannot pre-read files with an IO engine"
557 " that isn't seekable. Pre-read disabled.\n");
558 ret = warnings_fatal;
559 }
560 }
561
562#ifndef CONFIG_FDATASYNC
563 if (o->fdatasync_blocks) {
564 log_info("fio: this platform does not support fdatasync()"
565 " falling back to using fsync(). Use the 'fsync'"
566 " option instead of 'fdatasync' to get rid of"
567 " this warning\n");
568 o->fsync_blocks = o->fdatasync_blocks;
569 o->fdatasync_blocks = 0;
570 ret = warnings_fatal;
571 }
572#endif
573
574#ifdef WIN32
575 /*
576 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
577 * so fail if we're passed those flags
578 */
579 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
580 log_err("fio: Windows does not support direct or non-buffered io with"
581 " the synchronous ioengines. Use the 'windowsaio' ioengine"
582 " with 'direct=1' and 'iodepth=1' instead.\n");
583 ret = 1;
584 }
585#endif
586
587 /*
588 * For fully compressible data, just zero them at init time.
589 * It's faster than repeatedly filling it.
590 */
591 if (td->o.compress_percentage == 100) {
592 td->o.zero_buffers = 1;
593 td->o.compress_percentage = 0;
594 }
595
596 /*
597 * Using a non-uniform random distribution excludes usage of
598 * a random map
599 */
600 if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
601 td->o.norandommap = 1;
602
603 return ret;
604}
605
606/*
607 * This function leaks the buffer
608 */
609static char *to_kmg(unsigned int val)
610{
611 char *buf = malloc(32);
612 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
613 char *p = post;
614
615 do {
616 if (val & 1023)
617 break;
618
619 val >>= 10;
620 p++;
621 } while (*p);
622
623 snprintf(buf, 32, "%u%c", val, *p);
624 return buf;
625}
626
627/* External engines are specified by "external:name.o") */
628static const char *get_engine_name(const char *str)
629{
630 char *p = strstr(str, ":");
631
632 if (!p)
633 return str;
634
635 p++;
636 strip_blank_front(&p);
637 strip_blank_end(p);
638 return p;
639}
640
641static int exists_and_not_file(const char *filename)
642{
643 struct stat sb;
644
645 if (lstat(filename, &sb) == -1)
646 return 0;
647
648 /* \\.\ is the device namespace in Windows, where every file
649 * is a device node */
650 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
651 return 0;
652
653 return 1;
654}
655
656static void td_fill_rand_seeds_os(struct thread_data *td)
657{
658 os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state);
659 os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state);
660 os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state);
661
662 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
663 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state);
664
665 os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state);
666 os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state);
667
668 if (!td_random(td))
669 return;
670
671 if (td->o.rand_repeatable)
672 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
673
674 os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state);
675}
676
677static void td_fill_rand_seeds_internal(struct thread_data *td)
678{
679 init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
680 init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
681 init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
682
683 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
684 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
685
686 init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
687 init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
688
689 if (!td_random(td))
690 return;
691
692 if (td->o.rand_repeatable)
693 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
694
695 init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
696}
697
698void td_fill_rand_seeds(struct thread_data *td)
699{
700 if (td->o.use_os_rand)
701 td_fill_rand_seeds_os(td);
702 else
703 td_fill_rand_seeds_internal(td);
704
705 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
706}
707
708/*
709 * Initializes the ioengine configured for a job, if it has not been done so
710 * already.
711 */
712int ioengine_load(struct thread_data *td)
713{
714 const char *engine;
715
716 /*
717 * Engine has already been loaded.
718 */
719 if (td->io_ops)
720 return 0;
721
722 engine = get_engine_name(td->o.ioengine);
723 td->io_ops = load_ioengine(td, engine);
724 if (!td->io_ops) {
725 log_err("fio: failed to load engine %s\n", engine);
726 return 1;
727 }
728
729 if (td->io_ops->option_struct_size && td->io_ops->options) {
730 /*
731 * In cases where td->eo is set, clone it for a child thread.
732 * This requires that the parent thread has the same ioengine,
733 * but that requirement must be enforced by the code which
734 * cloned the thread.
735 */
736 void *origeo = td->eo;
737 /*
738 * Otherwise use the default thread options.
739 */
740 if (!origeo && td != &def_thread && def_thread.eo &&
741 def_thread.io_ops->options == td->io_ops->options)
742 origeo = def_thread.eo;
743
744 options_init(td->io_ops->options);
745 td->eo = malloc(td->io_ops->option_struct_size);
746 /*
747 * Use the default thread as an option template if this uses the
748 * same options structure and there are non-default options
749 * used.
750 */
751 if (origeo) {
752 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
753 options_mem_dupe(td->eo, td->io_ops->options);
754 } else {
755 memset(td->eo, 0, td->io_ops->option_struct_size);
756 fill_default_options(td->eo, td->io_ops->options);
757 }
758 *(struct thread_data **)td->eo = td;
759 }
760
761 return 0;
762}
763
764static void init_flags(struct thread_data *td)
765{
766 struct thread_options *o = &td->o;
767
768 if (o->verify_backlog)
769 td->flags |= TD_F_VER_BACKLOG;
770 if (o->trim_backlog)
771 td->flags |= TD_F_TRIM_BACKLOG;
772 if (o->read_iolog_file)
773 td->flags |= TD_F_READ_IOLOG;
774 if (o->refill_buffers)
775 td->flags |= TD_F_REFILL_BUFFERS;
776 if (o->scramble_buffers)
777 td->flags |= TD_F_SCRAMBLE_BUFFERS;
778 if (o->verify != VERIFY_NONE)
779 td->flags |= TD_F_VER_NONE;
780}
781
782static int setup_random_seeds(struct thread_data *td)
783{
784 unsigned long seed;
785 unsigned int i;
786
787 if (!td->o.rand_repeatable)
788 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
789
790 for (seed = 0x89, i = 0; i < 4; i++)
791 seed *= 0x9e370001UL;
792
793 for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
794 td->rand_seeds[i] = seed;
795 seed *= 0x9e370001UL;
796 }
797
798 td_fill_rand_seeds(td);
799 return 0;
800}
801
802/*
803 * Adds a job to the list of things todo. Sanitizes the various options
804 * to make sure we don't have conflicts, and initializes various
805 * members of td.
806 */
807static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
808{
809 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
810 "randread", "randwrite", "randrw",
811 "trim", NULL, NULL, NULL, "randtrim" };
812 unsigned int i;
813 char fname[PATH_MAX];
814 int numjobs, file_alloced;
815
816 /*
817 * the def_thread is just for options, it's not a real job
818 */
819 if (td == &def_thread)
820 return 0;
821
822 init_flags(td);
823
824 /*
825 * if we are just dumping the output command line, don't add the job
826 */
827 if (dump_cmdline || parse_only) {
828 put_job(td);
829 return 0;
830 }
831
832 if (profile_td_init(td))
833 goto err;
834
835 if (ioengine_load(td))
836 goto err;
837
838 if (td->o.use_thread)
839 nr_thread++;
840 else
841 nr_process++;
842
843 if (td->o.odirect)
844 td->io_ops->flags |= FIO_RAWIO;
845
846 file_alloced = 0;
847 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
848 file_alloced = 1;
849
850 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
851 add_file(td, jobname);
852 else {
853 for (i = 0; i < td->o.nr_files; i++) {
854 sprintf(fname, "%s.%d.%d", jobname,
855 td->thread_number, i);
856 add_file(td, fname);
857 }
858 }
859 }
860
861 if (fixup_options(td))
862 goto err;
863
864 flow_init_job(td);
865
866 /*
867 * IO engines only need this for option callbacks, and the address may
868 * change in subprocesses.
869 */
870 if (td->eo)
871 *(struct thread_data **)td->eo = NULL;
872
873 if (td->io_ops->flags & FIO_DISKLESSIO) {
874 struct fio_file *f;
875
876 for_each_file(td, f, i)
877 f->real_file_size = -1ULL;
878 }
879
880 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
881
882 td->ts.clat_percentiles = td->o.clat_percentiles;
883 td->ts.percentile_precision = td->o.percentile_precision;
884 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
885
886 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
887 td->ts.clat_stat[i].min_val = ULONG_MAX;
888 td->ts.slat_stat[i].min_val = ULONG_MAX;
889 td->ts.lat_stat[i].min_val = ULONG_MAX;
890 td->ts.bw_stat[i].min_val = ULONG_MAX;
891 }
892 td->ddir_seq_nr = td->o.ddir_seq_nr;
893
894 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
895 prev_group_jobs = 0;
896 groupid++;
897 }
898
899 td->groupid = groupid;
900 prev_group_jobs++;
901
902 if (setup_random_seeds(td)) {
903 td_verror(td, errno, "init_random_state");
904 goto err;
905 }
906
907 if (setup_rate(td))
908 goto err;
909
910 if (td->o.write_lat_log) {
911 setup_log(&td->lat_log, td->o.log_avg_msec);
912 setup_log(&td->slat_log, td->o.log_avg_msec);
913 setup_log(&td->clat_log, td->o.log_avg_msec);
914 }
915 if (td->o.write_bw_log)
916 setup_log(&td->bw_log, td->o.log_avg_msec);
917 if (td->o.write_iops_log)
918 setup_log(&td->iops_log, td->o.log_avg_msec);
919
920 if (!td->o.name)
921 td->o.name = strdup(jobname);
922
923 if (output_format == FIO_OUTPUT_NORMAL) {
924 if (!job_add_num) {
925 if (!strcmp(td->io_ops->name, "cpuio")) {
926 log_info("%s: ioengine=cpu, cpuload=%u,"
927 " cpucycle=%u\n", td->o.name,
928 td->o.cpuload,
929 td->o.cpucycle);
930 } else {
931 char *c1, *c2, *c3, *c4, *c5, *c6;
932
933 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
934 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
935 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
936 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
937 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]);
938 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]);
939
940 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s,"
941 " ioengine=%s, iodepth=%u\n",
942 td->o.name, td->groupid,
943 ddir_str[td->o.td_ddir],
944 c1, c2, c3, c4, c5, c6,
945 td->io_ops->name,
946 td->o.iodepth);
947
948 free(c1);
949 free(c2);
950 free(c3);
951 free(c4);
952 free(c5);
953 free(c6);
954 }
955 } else if (job_add_num == 1)
956 log_info("...\n");
957 }
958
959 /*
960 * recurse add identical jobs, clear numjobs and stonewall options
961 * as they don't apply to sub-jobs
962 */
963 numjobs = td->o.numjobs;
964 while (--numjobs) {
965 struct thread_data *td_new = get_new_job(0, td, 1);
966
967 if (!td_new)
968 goto err;
969
970 td_new->o.numjobs = 1;
971 td_new->o.stonewall = 0;
972 td_new->o.new_group = 0;
973
974 if (file_alloced) {
975 td_new->o.filename = NULL;
976 td_new->files_index = 0;
977 td_new->files_size = 0;
978 td_new->files = NULL;
979 }
980
981 job_add_num = numjobs - 1;
982
983 if (add_job(td_new, jobname, job_add_num))
984 goto err;
985 }
986
987 return 0;
988err:
989 put_job(td);
990 return -1;
991}
992
993/*
994 * Parse as if 'o' was a command line
995 */
996void add_job_opts(const char **o)
997{
998 struct thread_data *td, *td_parent;
999 int i, in_global = 1;
1000 char jobname[32];
1001
1002 i = 0;
1003 td_parent = td = NULL;
1004 while (o[i]) {
1005 if (!strncmp(o[i], "name", 4)) {
1006 in_global = 0;
1007 if (td)
1008 add_job(td, jobname, 0);
1009 td = NULL;
1010 sprintf(jobname, "%s", o[i] + 5);
1011 }
1012 if (in_global && !td_parent)
1013 td_parent = get_new_job(1, &def_thread, 0);
1014 else if (!in_global && !td) {
1015 if (!td_parent)
1016 td_parent = &def_thread;
1017 td = get_new_job(0, td_parent, 0);
1018 }
1019 if (in_global)
1020 fio_options_parse(td_parent, (char **) &o[i], 1);
1021 else
1022 fio_options_parse(td, (char **) &o[i], 1);
1023 i++;
1024 }
1025
1026 if (td)
1027 add_job(td, jobname, 0);
1028}
1029
1030static int skip_this_section(const char *name)
1031{
1032 int i;
1033
1034 if (!nr_job_sections)
1035 return 0;
1036 if (!strncmp(name, "global", 6))
1037 return 0;
1038
1039 for (i = 0; i < nr_job_sections; i++)
1040 if (!strcmp(job_sections[i], name))
1041 return 0;
1042
1043 return 1;
1044}
1045
1046static int is_empty_or_comment(char *line)
1047{
1048 unsigned int i;
1049
1050 for (i = 0; i < strlen(line); i++) {
1051 if (line[i] == ';')
1052 return 1;
1053 if (line[i] == '#')
1054 return 1;
1055 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1056 return 0;
1057 }
1058
1059 return 1;
1060}
1061
1062/*
1063 * This is our [ini] type file parser.
1064 */
1065int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
1066{
1067 unsigned int global;
1068 struct thread_data *td;
1069 char *string, *name;
1070 FILE *f;
1071 char *p;
1072 int ret = 0, stonewall;
1073 int first_sect = 1;
1074 int skip_fgets = 0;
1075 int inside_skip = 0;
1076 char **opts;
1077 int i, alloc_opts, num_opts;
1078
1079 if (is_buf)
1080 f = NULL;
1081 else {
1082 if (!strcmp(file, "-"))
1083 f = stdin;
1084 else
1085 f = fopen(file, "r");
1086
1087 if (!f) {
1088 perror("fopen job file");
1089 return 1;
1090 }
1091 }
1092
1093 string = malloc(4096);
1094
1095 /*
1096 * it's really 256 + small bit, 280 should suffice
1097 */
1098 name = malloc(280);
1099 memset(name, 0, 280);
1100
1101 alloc_opts = 8;
1102 opts = malloc(sizeof(char *) * alloc_opts);
1103 num_opts = 0;
1104
1105 stonewall = stonewall_flag;
1106 do {
1107 /*
1108 * if skip_fgets is set, we already have loaded a line we
1109 * haven't handled.
1110 */
1111 if (!skip_fgets) {
1112 if (is_buf)
1113 p = strsep(&file, "\n");
1114 else
1115 p = fgets(string, 4096, f);
1116 if (!p)
1117 break;
1118 }
1119
1120 skip_fgets = 0;
1121 strip_blank_front(&p);
1122 strip_blank_end(p);
1123
1124 if (is_empty_or_comment(p))
1125 continue;
1126 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1127 if (inside_skip)
1128 continue;
1129 log_err("fio: option <%s> outside of [] job section\n",
1130 p);
1131 break;
1132 }
1133
1134 name[strlen(name) - 1] = '\0';
1135
1136 if (skip_this_section(name)) {
1137 inside_skip = 1;
1138 continue;
1139 } else
1140 inside_skip = 0;
1141
1142 global = !strncmp(name, "global", 6);
1143
1144 if (dump_cmdline) {
1145 if (first_sect)
1146 log_info("fio ");
1147 if (!global)
1148 log_info("--name=%s ", name);
1149 first_sect = 0;
1150 }
1151
1152 td = get_new_job(global, &def_thread, 0);
1153 if (!td) {
1154 ret = 1;
1155 break;
1156 }
1157
1158 /*
1159 * Seperate multiple job files by a stonewall
1160 */
1161 if (!global && stonewall) {
1162 td->o.stonewall = stonewall;
1163 stonewall = 0;
1164 }
1165
1166 num_opts = 0;
1167 memset(opts, 0, alloc_opts * sizeof(char *));
1168
1169 while (1) {
1170 if (is_buf)
1171 p = strsep(&file, "\n");
1172 else
1173 p = fgets(string, 4096, f);
1174 if (!p)
1175 break;
1176
1177 if (is_empty_or_comment(p))
1178 continue;
1179
1180 strip_blank_front(&p);
1181
1182 /*
1183 * new section, break out and make sure we don't
1184 * fgets() a new line at the top.
1185 */
1186 if (p[0] == '[') {
1187 skip_fgets = 1;
1188 break;
1189 }
1190
1191 strip_blank_end(p);
1192
1193 if (num_opts == alloc_opts) {
1194 alloc_opts <<= 1;
1195 opts = realloc(opts,
1196 alloc_opts * sizeof(char *));
1197 }
1198
1199 opts[num_opts] = strdup(p);
1200 num_opts++;
1201 }
1202
1203 ret = fio_options_parse(td, opts, num_opts);
1204 if (!ret) {
1205 if (dump_cmdline)
1206 for (i = 0; i < num_opts; i++)
1207 log_info("--%s ", opts[i]);
1208
1209 ret = add_job(td, name, 0);
1210 } else {
1211 log_err("fio: job %s dropped\n", name);
1212 put_job(td);
1213 }
1214
1215 for (i = 0; i < num_opts; i++)
1216 free(opts[i]);
1217 num_opts = 0;
1218 } while (!ret);
1219
1220 if (dump_cmdline)
1221 log_info("\n");
1222
1223 i = 0;
1224 while (i < nr_job_sections) {
1225 free(job_sections[i]);
1226 i++;
1227 }
1228
1229 for (i = 0; i < num_opts; i++)
1230 free(opts[i]);
1231
1232 free(string);
1233 free(name);
1234 free(opts);
1235 if (!is_buf && f != stdin)
1236 fclose(f);
1237 return ret;
1238}
1239
1240static int fill_def_thread(void)
1241{
1242 memset(&def_thread, 0, sizeof(def_thread));
1243
1244 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1245 def_thread.o.timeout = def_timeout;
1246 def_thread.o.error_dump = 1;
1247 /*
1248 * fill default options
1249 */
1250 fio_fill_default_options(&def_thread);
1251 return 0;
1252}
1253
1254static void usage(const char *name)
1255{
1256 printf("%s\n", fio_version_string);
1257 printf("%s [options] [job options] <job file(s)>\n", name);
1258 printf(" --debug=options\tEnable debug logging. May be one/more of:\n"
1259 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1260 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1261 printf(" --parse-only\t\tParse options only, don't start any IO\n");
1262 printf(" --output\t\tWrite output to file\n");
1263 printf(" --runtime\t\tRuntime in seconds\n");
1264 printf(" --latency-log\t\tGenerate per-job latency logs\n");
1265 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n");
1266 printf(" --minimal\t\tMinimal (terse) output\n");
1267 printf(" --output-format=x\tOutput format (terse,json,normal)\n");
1268 printf(" --terse-version=x\tSet terse version output format to 'x'\n");
1269 printf(" --version\t\tPrint version info and exit\n");
1270 printf(" --help\t\tPrint this page\n");
1271 printf(" --cpuclock-test\tPerform test/validation of CPU clock\n");
1272 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1273 " them\n");
1274 printf(" --enghelp=engine\tPrint ioengine help, or list"
1275 " available ioengines\n");
1276 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
1277 " cmd\n");
1278 printf(" --showcmd\t\tTurn a job file into command line options\n");
1279 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
1280 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
1281 printf(" --eta-newline=time\tForce a new line for every 'time'");
1282 printf(" period passed\n");
1283 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
1284 " writes\n");
1285 printf(" --section=name\tOnly run specified section in job file\n");
1286 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
1287 " (def 1024)\n");
1288 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
1289 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1290 printf(" --server=args\t\tStart a backend fio server\n");
1291 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
1292 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
1293 printf(" --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1294 "\t\t\t(option=system,percpu) or run unit work\n"
1295 "\t\t\tcalibration only (option=calibrate)\n");
1296 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1297 printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
1298}
1299
1300#ifdef FIO_INC_DEBUG
1301struct debug_level debug_levels[] = {
1302 { .name = "process", .shift = FD_PROCESS, },
1303 { .name = "file", .shift = FD_FILE, },
1304 { .name = "io", .shift = FD_IO, },
1305 { .name = "mem", .shift = FD_MEM, },
1306 { .name = "blktrace", .shift = FD_BLKTRACE },
1307 { .name = "verify", .shift = FD_VERIFY },
1308 { .name = "random", .shift = FD_RANDOM },
1309 { .name = "parse", .shift = FD_PARSE },
1310 { .name = "diskutil", .shift = FD_DISKUTIL },
1311 { .name = "job", .shift = FD_JOB },
1312 { .name = "mutex", .shift = FD_MUTEX },
1313 { .name = "profile", .shift = FD_PROFILE },
1314 { .name = "time", .shift = FD_TIME },
1315 { .name = "net", .shift = FD_NET },
1316 { .name = NULL, },
1317};
1318
1319static int set_debug(const char *string)
1320{
1321 struct debug_level *dl;
1322 char *p = (char *) string;
1323 char *opt;
1324 int i;
1325
1326 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1327 log_info("fio: dumping debug options:");
1328 for (i = 0; debug_levels[i].name; i++) {
1329 dl = &debug_levels[i];
1330 log_info("%s,", dl->name);
1331 }
1332 log_info("all\n");
1333 return 1;
1334 }
1335
1336 while ((opt = strsep(&p, ",")) != NULL) {
1337 int found = 0;
1338
1339 if (!strncmp(opt, "all", 3)) {
1340 log_info("fio: set all debug options\n");
1341 fio_debug = ~0UL;
1342 continue;
1343 }
1344
1345 for (i = 0; debug_levels[i].name; i++) {
1346 dl = &debug_levels[i];
1347 found = !strncmp(opt, dl->name, strlen(dl->name));
1348 if (!found)
1349 continue;
1350
1351 if (dl->shift == FD_JOB) {
1352 opt = strchr(opt, ':');
1353 if (!opt) {
1354 log_err("fio: missing job number\n");
1355 break;
1356 }
1357 opt++;
1358 fio_debug_jobno = atoi(opt);
1359 log_info("fio: set debug jobno %d\n",
1360 fio_debug_jobno);
1361 } else {
1362 log_info("fio: set debug option %s\n", opt);
1363 fio_debug |= (1UL << dl->shift);
1364 }
1365 break;
1366 }
1367
1368 if (!found)
1369 log_err("fio: debug mask %s not found\n", opt);
1370 }
1371 return 0;
1372}
1373#else
1374static int set_debug(const char *string)
1375{
1376 log_err("fio: debug tracing not included in build\n");
1377 return 1;
1378}
1379#endif
1380
1381static void fio_options_fill_optstring(void)
1382{
1383 char *ostr = cmd_optstr;
1384 int i, c;
1385
1386 c = i = 0;
1387 while (l_opts[i].name) {
1388 ostr[c++] = l_opts[i].val;
1389 if (l_opts[i].has_arg == required_argument)
1390 ostr[c++] = ':';
1391 else if (l_opts[i].has_arg == optional_argument) {
1392 ostr[c++] = ':';
1393 ostr[c++] = ':';
1394 }
1395 i++;
1396 }
1397 ostr[c] = '\0';
1398}
1399
1400static int client_flag_set(char c)
1401{
1402 int i;
1403
1404 i = 0;
1405 while (l_opts[i].name) {
1406 int val = l_opts[i].val;
1407
1408 if (c == (val & 0xff))
1409 return (val & FIO_CLIENT_FLAG);
1410
1411 i++;
1412 }
1413
1414 return 0;
1415}
1416
1417void parse_cmd_client(void *client, char *opt)
1418{
1419 fio_client_add_cmd_option(client, opt);
1420}
1421
1422int parse_cmd_line(int argc, char *argv[])
1423{
1424 struct thread_data *td = NULL;
1425 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1426 char *ostr = cmd_optstr;
1427 void *pid_file = NULL;
1428 void *cur_client = NULL;
1429 int backend = 0;
1430
1431 /*
1432 * Reset optind handling, since we may call this multiple times
1433 * for the backend.
1434 */
1435 optind = 1;
1436
1437 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1438 did_arg = 1;
1439
1440 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1441 parse_cmd_client(cur_client, argv[optind - 1]);
1442 c &= ~FIO_CLIENT_FLAG;
1443 }
1444
1445 switch (c) {
1446 case 'a':
1447 smalloc_pool_size = atoi(optarg);
1448 break;
1449 case 't':
1450 def_timeout = atoi(optarg);
1451 break;
1452 case 'l':
1453 write_lat_log = 1;
1454 break;
1455 case 'b':
1456 write_bw_log = 1;
1457 break;
1458 case 'o':
1459 f_out = fopen(optarg, "w+");
1460 if (!f_out) {
1461 perror("fopen output");
1462 exit(1);
1463 }
1464 f_err = f_out;
1465 break;
1466 case 'm':
1467 output_format = FIO_OUTPUT_TERSE;
1468 break;
1469 case 'F':
1470 if (!strcmp(optarg, "minimal") ||
1471 !strcmp(optarg, "terse") ||
1472 !strcmp(optarg, "csv"))
1473 output_format = FIO_OUTPUT_TERSE;
1474 else if (!strcmp(optarg, "json"))
1475 output_format = FIO_OUTPUT_JSON;
1476 else
1477 output_format = FIO_OUTPUT_NORMAL;
1478 break;
1479 case 'h':
1480 if (!cur_client) {
1481 usage(argv[0]);
1482 do_exit++;
1483 }
1484 break;
1485 case 'c':
1486 if (!cur_client) {
1487 fio_show_option_help(optarg);
1488 do_exit++;
1489 }
1490 break;
1491 case 'i':
1492 if (!cur_client) {
1493 fio_show_ioengine_help(optarg);
1494 do_exit++;
1495 }
1496 break;
1497 case 's':
1498 dump_cmdline = 1;
1499 break;
1500 case 'r':
1501 read_only = 1;
1502 break;
1503 case 'v':
1504 if (!cur_client) {
1505 log_info("%s\n", fio_version_string);
1506 do_exit++;
1507 }
1508 break;
1509 case 'V':
1510 terse_version = atoi(optarg);
1511 if (!(terse_version == 2 || terse_version == 3 ||
1512 terse_version == 4)) {
1513 log_err("fio: bad terse version format\n");
1514 exit_val = 1;
1515 do_exit++;
1516 }
1517 break;
1518 case 'e':
1519 if (!strcmp("always", optarg))
1520 eta_print = FIO_ETA_ALWAYS;
1521 else if (!strcmp("never", optarg))
1522 eta_print = FIO_ETA_NEVER;
1523 break;
1524 case 'E': {
1525 long long t = 0;
1526
1527 if (str_to_decimal(optarg, &t, 0, NULL)) {
1528 log_err("fio: failed parsing eta time %s\n", optarg);
1529 exit_val = 1;
1530 do_exit++;
1531 }
1532 eta_new_line = t;
1533 break;
1534 }
1535 case 'd':
1536 if (set_debug(optarg))
1537 do_exit++;
1538 break;
1539 case 'P':
1540 parse_only = 1;
1541 break;
1542 case 'x': {
1543 size_t new_size;
1544
1545 if (!strcmp(optarg, "global")) {
1546 log_err("fio: can't use global as only "
1547 "section\n");
1548 do_exit++;
1549 exit_val = 1;
1550 break;
1551 }
1552 new_size = (nr_job_sections + 1) * sizeof(char *);
1553 job_sections = realloc(job_sections, new_size);
1554 job_sections[nr_job_sections] = strdup(optarg);
1555 nr_job_sections++;
1556 break;
1557 }
1558 case 'p':
1559 exec_profile = strdup(optarg);
1560 break;
1561 case FIO_GETOPT_JOB: {
1562 const char *opt = l_opts[lidx].name;
1563 char *val = optarg;
1564
1565 if (!strncmp(opt, "name", 4) && td) {
1566 ret = add_job(td, td->o.name ?: "fio", 0);
1567 if (ret)
1568 return 0;
1569 td = NULL;
1570 }
1571 if (!td) {
1572 int is_section = !strncmp(opt, "name", 4);
1573 int global = 0;
1574
1575 if (!is_section || !strncmp(val, "global", 6))
1576 global = 1;
1577
1578 if (is_section && skip_this_section(val))
1579 continue;
1580
1581 td = get_new_job(global, &def_thread, 1);
1582 if (!td || ioengine_load(td))
1583 return 0;
1584 fio_options_set_ioengine_opts(l_opts, td);
1585 }
1586
1587 ret = fio_cmd_option_parse(td, opt, val);
1588
1589 if (!ret && !strcmp(opt, "ioengine")) {
1590 free_ioengine(td);
1591 if (ioengine_load(td))
1592 return 0;
1593 fio_options_set_ioengine_opts(l_opts, td);
1594 }
1595 break;
1596 }
1597 case FIO_GETOPT_IOENGINE: {
1598 const char *opt = l_opts[lidx].name;
1599 char *val = optarg;
1600 opt = l_opts[lidx].name;
1601 val = optarg;
1602 ret = fio_cmd_ioengine_option_parse(td, opt, val);
1603 break;
1604 }
1605 case 'w':
1606 warnings_fatal = 1;
1607 break;
1608 case 'j':
1609 max_jobs = atoi(optarg);
1610 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1611 log_err("fio: invalid max jobs: %d\n", max_jobs);
1612 do_exit++;
1613 exit_val = 1;
1614 }
1615 break;
1616 case 'S':
1617 if (nr_clients) {
1618 log_err("fio: can't be both client and server\n");
1619 do_exit++;
1620 exit_val = 1;
1621 break;
1622 }
1623 if (optarg)
1624 fio_server_set_arg(optarg);
1625 is_backend = 1;
1626 backend = 1;
1627 break;
1628 case 'D':
1629 pid_file = strdup(optarg);
1630 break;
1631 case 'I':
1632 if ((ret = fio_idle_prof_parse_opt(optarg))) {
1633 /* exit on error and calibration only */
1634 do_exit++;
1635 if (ret == -1)
1636 exit_val = 1;
1637 }
1638 break;
1639 case 'C':
1640 if (is_backend) {
1641 log_err("fio: can't be both client and server\n");
1642 do_exit++;
1643 exit_val = 1;
1644 break;
1645 }
1646 if (fio_client_add(optarg, &cur_client)) {
1647 log_err("fio: failed adding client %s\n", optarg);
1648 do_exit++;
1649 exit_val = 1;
1650 break;
1651 }
1652 /*
1653 * If the next argument exists and isn't an option,
1654 * assume it's a job file for this client only.
1655 */
1656 while (optind < argc) {
1657 if (!strncmp(argv[optind], "--", 2) ||
1658 !strncmp(argv[optind], "-", 1))
1659 break;
1660
1661 fio_client_add_ini_file(cur_client, argv[optind]);
1662 optind++;
1663 }
1664 break;
1665 case 'T':
1666 do_exit++;
1667 exit_val = fio_monotonic_clocktest();
1668 break;
1669 case '?':
1670 log_err("%s: unrecognized option '%s'\n", argv[0],
1671 argv[optind - 1]);
1672 default:
1673 do_exit++;
1674 exit_val = 1;
1675 break;
1676 }
1677 if (do_exit)
1678 break;
1679 }
1680
1681 if (do_exit) {
1682 if (exit_val && !(is_backend || nr_clients))
1683 exit(exit_val);
1684 }
1685
1686 if (nr_clients && fio_clients_connect()) {
1687 do_exit++;
1688 exit_val = 1;
1689 return -1;
1690 }
1691
1692 if (is_backend && backend)
1693 return fio_start_server(pid_file);
1694
1695 if (td) {
1696 if (!ret)
1697 ret = add_job(td, td->o.name ?: "fio", 0);
1698 }
1699
1700 while (!ret && optind < argc) {
1701 ini_idx++;
1702 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1703 ini_file[ini_idx - 1] = strdup(argv[optind]);
1704 optind++;
1705 }
1706
1707 return ini_idx;
1708}
1709
1710int parse_options(int argc, char *argv[])
1711{
1712 int job_files, i;
1713
1714 f_out = stdout;
1715 f_err = stderr;
1716
1717 fio_options_fill_optstring();
1718 fio_options_dup_and_init(l_opts);
1719
1720 atexit(free_shm);
1721
1722 if (fill_def_thread())
1723 return 1;
1724
1725 job_files = parse_cmd_line(argc, argv);
1726
1727 if (job_files > 0) {
1728 for (i = 0; i < job_files; i++) {
1729 if (fill_def_thread())
1730 return 1;
1731 if (nr_clients) {
1732 if (fio_clients_send_ini(ini_file[i]))
1733 return 1;
1734 free(ini_file[i]);
1735 } else if (!is_backend) {
1736 if (parse_jobs_ini(ini_file[i], 0, i))
1737 return 1;
1738 free(ini_file[i]);
1739 }
1740 }
1741 } else if (nr_clients) {
1742 if (fill_def_thread())
1743 return 1;
1744 if (fio_clients_send_ini(NULL))
1745 return 1;
1746 }
1747
1748 free(ini_file);
1749 fio_options_free(&def_thread);
1750
1751 if (!thread_number) {
1752 if (dump_cmdline || parse_only)
1753 return 0;
1754 if (exec_profile)
1755 return 0;
1756 if (is_backend || nr_clients)
1757 return 0;
1758 if (did_arg)
1759 return 0;
1760
1761 log_err("No jobs(s) defined\n\n");
1762
1763 if (!did_arg) {
1764 usage(argv[0]);
1765 return 1;
1766 }
1767
1768 return 0;
1769 }
1770
1771 if (def_thread.o.gtod_offload) {
1772 fio_gtod_init();
1773 fio_gtod_offload = 1;
1774 fio_gtod_cpu = def_thread.o.gtod_cpu;
1775 }
1776
1777 if (output_format == FIO_OUTPUT_NORMAL)
1778 log_info("%s\n", fio_version_string);
1779
1780 return 0;
1781}
fio - Flexible IO Tester