2 * This file contains job initialization and setup functions.
12 #include <sys/types.h>
16 #ifndef FIO_NO_HAVE_SHM_H
29 #include "lib/getopt.h"
30 #include "oslib/strcasestr.h"
34 const char fio_version_string[] = FIO_VERSION;
36 #define FIO_RANDSEED (0xb1899bedUL)
38 static char **ini_file;
39 static int max_jobs = FIO_MAX_JOBS;
40 static int dump_cmdline;
41 static long long def_timeout;
42 static int parse_only;
44 static struct thread_data def_thread;
45 struct thread_data *threads = NULL;
46 static char **job_sections;
47 static int nr_job_sections;
49 int exitall_on_terminate = 0;
50 int exitall_on_terminate_error = 0;
51 int output_format = FIO_OUTPUT_NORMAL;
52 int eta_print = FIO_ETA_AUTO;
56 char *exec_profile = NULL;
57 int warnings_fatal = 0;
58 int terse_version = 3;
65 int status_interval = 0;
67 char *trigger_file = NULL;
68 long long trigger_timeout = 0;
69 char *trigger_cmd = NULL;
70 char *trigger_remote_cmd = NULL;
72 char *aux_path = NULL;
74 static int prev_group_jobs;
76 unsigned long fio_debug = 0;
77 unsigned int fio_debug_jobno = -1;
78 unsigned int *fio_debug_jobp = NULL;
80 static char cmd_optstr[256];
83 #define FIO_CLIENT_FLAG (1 << 16)
86 * Command line options. These will contain the above, plus a few
87 * extra that only pertain to fio itself and not jobs.
89 static struct option l_opts[FIO_NR_OPTIONS] = {
91 .name = (char *) "output",
92 .has_arg = required_argument,
93 .val = 'o' | FIO_CLIENT_FLAG,
96 .name = (char *) "timeout",
97 .has_arg = required_argument,
98 .val = 't' | FIO_CLIENT_FLAG,
101 .name = (char *) "latency-log",
102 .has_arg = required_argument,
103 .val = 'l' | FIO_CLIENT_FLAG,
106 .name = (char *) "bandwidth-log",
107 .has_arg = required_argument,
108 .val = 'b' | FIO_CLIENT_FLAG,
111 .name = (char *) "minimal",
112 .has_arg = no_argument,
113 .val = 'm' | FIO_CLIENT_FLAG,
116 .name = (char *) "output-format",
117 .has_arg = optional_argument,
118 .val = 'F' | FIO_CLIENT_FLAG,
121 .name = (char *) "append-terse",
122 .has_arg = optional_argument,
126 .name = (char *) "version",
127 .has_arg = no_argument,
128 .val = 'v' | FIO_CLIENT_FLAG,
131 .name = (char *) "help",
132 .has_arg = no_argument,
133 .val = 'h' | FIO_CLIENT_FLAG,
136 .name = (char *) "cmdhelp",
137 .has_arg = optional_argument,
138 .val = 'c' | FIO_CLIENT_FLAG,
141 .name = (char *) "enghelp",
142 .has_arg = optional_argument,
143 .val = 'i' | FIO_CLIENT_FLAG,
146 .name = (char *) "showcmd",
147 .has_arg = no_argument,
148 .val = 's' | FIO_CLIENT_FLAG,
151 .name = (char *) "readonly",
152 .has_arg = no_argument,
153 .val = 'r' | FIO_CLIENT_FLAG,
156 .name = (char *) "eta",
157 .has_arg = required_argument,
158 .val = 'e' | FIO_CLIENT_FLAG,
161 .name = (char *) "eta-newline",
162 .has_arg = required_argument,
163 .val = 'E' | FIO_CLIENT_FLAG,
166 .name = (char *) "debug",
167 .has_arg = required_argument,
168 .val = 'd' | FIO_CLIENT_FLAG,
171 .name = (char *) "parse-only",
172 .has_arg = no_argument,
173 .val = 'P' | FIO_CLIENT_FLAG,
176 .name = (char *) "section",
177 .has_arg = required_argument,
178 .val = 'x' | FIO_CLIENT_FLAG,
182 .name = (char *) "inflate-log",
183 .has_arg = required_argument,
184 .val = 'X' | FIO_CLIENT_FLAG,
188 .name = (char *) "alloc-size",
189 .has_arg = required_argument,
190 .val = 'a' | FIO_CLIENT_FLAG,
193 .name = (char *) "profile",
194 .has_arg = required_argument,
195 .val = 'p' | FIO_CLIENT_FLAG,
198 .name = (char *) "warnings-fatal",
199 .has_arg = no_argument,
200 .val = 'w' | FIO_CLIENT_FLAG,
203 .name = (char *) "max-jobs",
204 .has_arg = required_argument,
205 .val = 'j' | FIO_CLIENT_FLAG,
208 .name = (char *) "terse-version",
209 .has_arg = required_argument,
210 .val = 'V' | FIO_CLIENT_FLAG,
213 .name = (char *) "server",
214 .has_arg = optional_argument,
217 { .name = (char *) "daemonize",
218 .has_arg = required_argument,
222 .name = (char *) "client",
223 .has_arg = required_argument,
227 .name = (char *) "remote-config",
228 .has_arg = required_argument,
232 .name = (char *) "cpuclock-test",
233 .has_arg = no_argument,
237 .name = (char *) "crctest",
238 .has_arg = optional_argument,
242 .name = (char *) "idle-prof",
243 .has_arg = required_argument,
247 .name = (char *) "status-interval",
248 .has_arg = required_argument,
252 .name = (char *) "trigger-file",
253 .has_arg = required_argument,
257 .name = (char *) "trigger-timeout",
258 .has_arg = required_argument,
262 .name = (char *) "trigger",
263 .has_arg = required_argument,
267 .name = (char *) "trigger-remote",
268 .has_arg = required_argument,
272 .name = (char *) "aux-path",
273 .has_arg = required_argument,
281 void free_threads_shm(void)
285 #ifndef CONFIG_NO_SHM
286 struct shmid_ds sbuf;
290 shmctl(shm_id, IPC_RMID, &sbuf);
299 static void free_shm(void)
304 fio_debug_jobp = NULL;
310 free(trigger_remote_cmd);
311 trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
313 options_free(fio_options, &def_thread);
319 * The thread area is shared between the main process and the job
320 * threads/processes. So setup a shared memory segment that will hold
321 * all the job info. We use the end of the region for keeping track of
322 * open files across jobs, for file sharing.
324 static int setup_thread_area(void)
332 * 1024 is too much on some machines, scale max_jobs if
333 * we get a failure that looks like too large a shm segment
336 size_t size = max_jobs * sizeof(struct thread_data);
338 size += file_hash_size;
339 size += sizeof(unsigned int);
341 #ifndef CONFIG_NO_SHM
342 shm_id = shmget(0, size, IPC_CREAT | 0600);
345 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
350 threads = malloc(size);
358 #ifndef CONFIG_NO_SHM
362 threads = shmat(shm_id, NULL, 0);
363 if (threads == (void *) -1) {
369 memset(threads, 0, max_jobs * sizeof(struct thread_data));
370 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
371 fio_debug_jobp = (void *) hash + file_hash_size;
372 *fio_debug_jobp = -1;
373 file_hash_init(hash);
380 static void set_cmd_options(struct thread_data *td)
382 struct thread_options *o = &td->o;
385 o->timeout = def_timeout;
388 static void dump_print_option(struct print_option *p)
392 if (!strcmp("description", p->name))
397 log_info("--%s%s", p->name, p->value ? "" : " ");
399 log_info("=%s%s%s ", delim, p->value, delim);
402 static void dump_opt_list(struct thread_data *td)
404 struct flist_head *entry;
405 struct print_option *p;
407 if (flist_empty(&td->opt_list))
410 flist_for_each(entry, &td->opt_list) {
411 p = flist_entry(entry, struct print_option, list);
412 dump_print_option(p);
416 static void fio_dump_options_free(struct thread_data *td)
418 while (!flist_empty(&td->opt_list)) {
419 struct print_option *p;
421 p = flist_first_entry(&td->opt_list, struct print_option, list);
422 flist_del_init(&p->list);
429 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
431 struct flist_head *entry;
433 if (flist_empty(&src->opt_list))
436 flist_for_each(entry, &src->opt_list) {
437 struct print_option *srcp, *dstp;
439 srcp = flist_entry(entry, struct print_option, list);
440 dstp = malloc(sizeof(*dstp));
441 dstp->name = strdup(srcp->name);
443 dstp->value = strdup(srcp->value);
446 flist_add_tail(&dstp->list, &dst->opt_list);
451 * Return a free job structure.
453 static struct thread_data *get_new_job(int global, struct thread_data *parent,
454 int preserve_eo, const char *jobname)
456 struct thread_data *td;
459 set_cmd_options(&def_thread);
462 if (setup_thread_area()) {
463 log_err("error: failed to setup shm segment\n");
466 if (thread_number >= max_jobs) {
467 log_err("error: maximum number of jobs (%d) reached.\n",
472 td = &threads[thread_number++];
475 INIT_FLIST_HEAD(&td->opt_list);
476 if (parent != &def_thread)
477 copy_opt_list(td, parent);
483 td->o.uid = td->o.gid = -1U;
485 dup_files(td, parent);
486 fio_options_mem_dupe(td);
488 profile_add_hooks(td);
490 td->thread_number = thread_number;
491 td->subjob_number = 0;
494 td->o.name = strdup(jobname);
496 if (!parent->o.group_reporting)
503 static void put_job(struct thread_data *td)
505 if (td == &def_thread)
512 log_info("fio: %s\n", td->verror);
514 fio_options_free(td);
515 fio_dump_options_free(td);
522 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
526 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
528 unsigned int bs = td->o.min_bs[ddir];
530 assert(ddir_rw(ddir));
532 if (td->o.rate[ddir])
533 td->rate_bps[ddir] = td->o.rate[ddir];
535 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
537 if (!td->rate_bps[ddir]) {
538 log_err("rate lower than supported\n");
542 td->rate_next_io_time[ddir] = 0;
543 td->rate_io_issue_bytes[ddir] = 0;
548 static int setup_rate(struct thread_data *td)
552 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
553 ret = __setup_rate(td, DDIR_READ);
554 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
555 ret |= __setup_rate(td, DDIR_WRITE);
556 if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
557 ret |= __setup_rate(td, DDIR_TRIM);
562 static int fixed_block_size(struct thread_options *o)
564 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
565 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
566 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
567 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
568 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
572 static unsigned long long get_rand_start_delay(struct thread_data *td)
574 unsigned long long delayrange;
578 delayrange = td->o.start_delay_high - td->o.start_delay;
580 frand_max = rand_max(&td->delay_state);
581 r = __rand(&td->delay_state);
582 delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
584 delayrange += td->o.start_delay;
589 * Lazy way of fixing up options that depend on each other. We could also
590 * define option callback handlers, but this is easier.
592 static int fixup_options(struct thread_data *td)
594 struct thread_options *o = &td->o;
597 #ifndef FIO_HAVE_PSHARED_MUTEX
598 if (!o->use_thread) {
599 log_info("fio: this platform does not support process shared"
600 " mutexes, forcing use of threads. Use the 'thread'"
601 " option to get rid of this warning.\n");
603 ret = warnings_fatal;
607 if (o->write_iolog_file && o->read_iolog_file) {
608 log_err("fio: read iolog overrides write_iolog\n");
609 free(o->write_iolog_file);
610 o->write_iolog_file = NULL;
611 ret = warnings_fatal;
615 * only really works with 1 file
617 if (o->zone_size && o->open_files > 1)
621 * If zone_range isn't specified, backward compatibility dictates it
622 * should be made equal to zone_size.
624 if (o->zone_size && !o->zone_range)
625 o->zone_range = o->zone_size;
628 * Reads can do overwrites, we always need to pre-create the file
630 if (td_read(td) || td_rw(td))
633 if (!o->min_bs[DDIR_READ])
634 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
635 if (!o->max_bs[DDIR_READ])
636 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
637 if (!o->min_bs[DDIR_WRITE])
638 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
639 if (!o->max_bs[DDIR_WRITE])
640 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
641 if (!o->min_bs[DDIR_TRIM])
642 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
643 if (!o->max_bs[DDIR_TRIM])
644 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
646 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
647 o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
650 * For random IO, allow blockalign offset other than min_bs.
652 if (!o->ba[DDIR_READ] || !td_random(td))
653 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
654 if (!o->ba[DDIR_WRITE] || !td_random(td))
655 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
656 if (!o->ba[DDIR_TRIM] || !td_random(td))
657 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
659 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
660 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
661 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
663 log_err("fio: Any use of blockalign= turns off randommap\n");
665 ret = warnings_fatal;
668 if (!o->file_size_high)
669 o->file_size_high = o->file_size_low;
671 if (o->start_delay_high)
672 o->start_delay = get_rand_start_delay(td);
674 if (o->norandommap && o->verify != VERIFY_NONE
675 && !fixed_block_size(o)) {
676 log_err("fio: norandommap given for variable block sizes, "
678 ret = warnings_fatal;
680 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
681 log_err("fio: bs_unaligned may not work with raw io\n");
684 * thinktime_spin must be less than thinktime
686 if (o->thinktime_spin > o->thinktime)
687 o->thinktime_spin = o->thinktime;
690 * The low water mark cannot be bigger than the iodepth
692 if (o->iodepth_low > o->iodepth || !o->iodepth_low)
693 o->iodepth_low = o->iodepth;
696 * If batch number isn't set, default to the same as iodepth
698 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
699 o->iodepth_batch = o->iodepth;
702 * If max batch complete number isn't set or set incorrectly,
703 * default to the same as iodepth_batch_complete_min
705 if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
706 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
708 if (o->nr_files > td->files_index)
709 o->nr_files = td->files_index;
711 if (o->open_files > o->nr_files || !o->open_files)
712 o->open_files = o->nr_files;
714 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
715 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
716 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
717 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
718 log_err("fio: rate and rate_iops are mutually exclusive\n");
721 if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
722 (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
723 (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
724 (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
725 (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
726 (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
727 log_err("fio: minimum rate exceeds rate\n");
731 if (!o->timeout && o->time_based) {
732 log_err("fio: time_based requires a runtime/timeout setting\n");
734 ret = warnings_fatal;
737 if (o->fill_device && !o->size)
740 if (o->verify != VERIFY_NONE) {
741 if (td_write(td) && o->do_verify && o->numjobs > 1) {
742 log_info("Multiple writers may overwrite blocks that "
743 "belong to other jobs. This can cause "
744 "verification failures.\n");
745 ret = warnings_fatal;
748 if (!fio_option_is_set(o, refill_buffers))
749 o->refill_buffers = 1;
751 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
753 o->verify_interval = o->min_bs[DDIR_WRITE];
756 * Verify interval must be smaller or equal to the
759 if (o->verify_interval > o->min_bs[DDIR_WRITE])
760 o->verify_interval = o->min_bs[DDIR_WRITE];
761 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
762 o->verify_interval = o->min_bs[DDIR_READ];
766 o->invalidate_cache = 0;
767 if (td->io_ops->flags & FIO_PIPEIO) {
768 log_info("fio: cannot pre-read files with an IO engine"
769 " that isn't seekable. Pre-read disabled.\n");
770 ret = warnings_fatal;
775 if (td->io_ops->flags & FIO_BIT_BASED)
781 #ifndef CONFIG_FDATASYNC
782 if (o->fdatasync_blocks) {
783 log_info("fio: this platform does not support fdatasync()"
784 " falling back to using fsync(). Use the 'fsync'"
785 " option instead of 'fdatasync' to get rid of"
787 o->fsync_blocks = o->fdatasync_blocks;
788 o->fdatasync_blocks = 0;
789 ret = warnings_fatal;
795 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
796 * so fail if we're passed those flags
798 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
799 log_err("fio: Windows does not support direct or non-buffered io with"
800 " the synchronous ioengines. Use the 'windowsaio' ioengine"
801 " with 'direct=1' and 'iodepth=1' instead.\n");
807 * For fully compressible data, just zero them at init time.
808 * It's faster than repeatedly filling it. For non-zero
809 * compression, we should have refill_buffers set. Set it, unless
810 * the job file already changed it.
812 if (o->compress_percentage) {
813 if (o->compress_percentage == 100) {
815 o->compress_percentage = 0;
816 } else if (!fio_option_is_set(o, refill_buffers))
817 o->refill_buffers = 1;
821 * Using a non-uniform random distribution excludes usage of
824 if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
825 td->o.norandommap = 1;
828 * If size is set but less than the min block size, complain
830 if (o->size && o->size < td_min_bs(td)) {
831 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
836 * O_ATOMIC implies O_DIRECT
842 * If randseed is set, that overrides randrepeat
844 if (fio_option_is_set(&td->o, rand_seed))
845 td->o.rand_repeatable = 0;
847 if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
848 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
852 if (fio_option_is_set(o, gtod_cpu)) {
854 fio_gtod_set_cpu(o->gtod_cpu);
855 fio_gtod_offload = 1;
858 td->loops = o->loops;
862 if (td->o.block_error_hist && td->o.nr_files != 1) {
863 log_err("fio: block error histogram only available with "
864 "with a single file per job, but %d files "
865 "provided\n", td->o.nr_files);
873 * This function leaks the buffer
875 char *fio_uint_to_kmg(unsigned int val)
877 char *buf = malloc(32);
878 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
889 snprintf(buf, 32, "%u%c", val, *p);
893 /* External engines are specified by "external:name.o") */
894 static const char *get_engine_name(const char *str)
896 char *p = strstr(str, ":");
902 strip_blank_front(&p);
907 static int exists_and_not_file(const char *filename)
911 if (lstat(filename, &sb) == -1)
914 /* \\.\ is the device namespace in Windows, where every file
915 * is a device node */
916 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
922 static void td_fill_rand_seeds_internal(struct thread_data *td, int use64)
924 init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF], use64);
925 init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF], use64);
926 init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], use64);
928 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
929 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
931 init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
932 init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
933 init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
934 init_rand_seed(&td->poisson_state, td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
939 if (td->o.rand_repeatable)
940 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
942 init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
943 init_rand_seed(&td->seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], use64);
944 init_rand_seed(&td->seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF], use64);
945 init_rand_seed(&td->seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF], use64);
948 void td_fill_rand_seeds(struct thread_data *td)
952 if (td->o.allrand_repeatable) {
955 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
956 td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
960 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
965 td_fill_rand_seeds_internal(td, use64);
967 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
968 frand_copy(&td->buf_state_prev, &td->buf_state);
970 init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], use64);
974 * Initializes the ioengine configured for a job, if it has not been done so
977 int ioengine_load(struct thread_data *td)
982 * Engine has already been loaded.
986 if (!td->o.ioengine) {
987 log_err("fio: internal fault, no IO engine specified\n");
991 engine = get_engine_name(td->o.ioengine);
992 td->io_ops = load_ioengine(td, engine);
994 log_err("fio: failed to load engine %s\n", engine);
998 if (td->io_ops->option_struct_size && td->io_ops->options) {
1000 * In cases where td->eo is set, clone it for a child thread.
1001 * This requires that the parent thread has the same ioengine,
1002 * but that requirement must be enforced by the code which
1003 * cloned the thread.
1005 void *origeo = td->eo;
1007 * Otherwise use the default thread options.
1009 if (!origeo && td != &def_thread && def_thread.eo &&
1010 def_thread.io_ops->options == td->io_ops->options)
1011 origeo = def_thread.eo;
1013 options_init(td->io_ops->options);
1014 td->eo = malloc(td->io_ops->option_struct_size);
1016 * Use the default thread as an option template if this uses the
1017 * same options structure and there are non-default options
1021 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1022 options_mem_dupe(td->eo, td->io_ops->options);
1024 memset(td->eo, 0, td->io_ops->option_struct_size);
1025 fill_default_options(td->eo, td->io_ops->options);
1027 *(struct thread_data **)td->eo = td;
1033 static void init_flags(struct thread_data *td)
1035 struct thread_options *o = &td->o;
1037 if (o->verify_backlog)
1038 td->flags |= TD_F_VER_BACKLOG;
1039 if (o->trim_backlog)
1040 td->flags |= TD_F_TRIM_BACKLOG;
1041 if (o->read_iolog_file)
1042 td->flags |= TD_F_READ_IOLOG;
1043 if (o->refill_buffers)
1044 td->flags |= TD_F_REFILL_BUFFERS;
1046 * Always scramble buffers if asked to
1048 if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1049 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1051 * But also scramble buffers, unless we were explicitly asked
1054 if (o->scramble_buffers && !(o->zero_buffers &&
1055 fio_option_is_set(o, zero_buffers)))
1056 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1057 if (o->verify != VERIFY_NONE)
1058 td->flags |= TD_F_VER_NONE;
1060 if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1061 td->flags |= TD_F_NEED_LOCK;
1064 static int setup_random_seeds(struct thread_data *td)
1069 if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed))
1070 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
1072 seed = td->o.rand_seed;
1073 for (i = 0; i < 4; i++)
1074 seed *= 0x9e370001UL;
1076 for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1077 td->rand_seeds[i] = seed;
1078 seed *= 0x9e370001UL;
1081 td_fill_rand_seeds(td);
1092 static struct fpre_keyword {
1093 const char *keyword;
1096 } fpre_keywords[] = {
1097 { .keyword = "$jobname", .key = FPRE_JOBNAME, },
1098 { .keyword = "$jobnum", .key = FPRE_JOBNUM, },
1099 { .keyword = "$filenum", .key = FPRE_FILENUM, },
1100 { .keyword = NULL, },
1103 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1104 const char *jobname, int jobnum, int filenum)
1106 struct fpre_keyword *f;
1107 char copy[PATH_MAX];
1108 size_t dst_left = PATH_MAX - 1;
1110 if (!o->filename_format || !strlen(o->filename_format)) {
1111 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1115 for (f = &fpre_keywords[0]; f->keyword; f++)
1116 f->strlen = strlen(f->keyword);
1118 buf[buf_size - 1] = '\0';
1119 strncpy(buf, o->filename_format, buf_size - 1);
1121 memset(copy, 0, sizeof(copy));
1122 for (f = &fpre_keywords[0]; f->keyword; f++) {
1124 size_t pre_len, post_start = 0;
1125 char *str, *dst = copy;
1127 str = strcasestr(buf, f->keyword);
1131 pre_len = str - buf;
1132 if (strlen(str) != f->strlen)
1133 post_start = pre_len + f->strlen;
1136 strncpy(dst, buf, pre_len);
1138 dst_left -= pre_len;
1142 case FPRE_JOBNAME: {
1145 ret = snprintf(dst, dst_left, "%s", jobname);
1148 else if (ret > dst_left) {
1149 log_err("fio: truncated filename\n");
1161 ret = snprintf(dst, dst_left, "%d", jobnum);
1164 else if (ret > dst_left) {
1165 log_err("fio: truncated filename\n");
1174 case FPRE_FILENUM: {
1177 ret = snprintf(dst, dst_left, "%d", filenum);
1180 else if (ret > dst_left) {
1181 log_err("fio: truncated filename\n");
1196 strncpy(dst, buf + post_start, dst_left);
1198 strncpy(buf, copy, buf_size - 1);
1205 int parse_dryrun(void)
1207 return dump_cmdline || parse_only;
1210 static void gen_log_name(char *name, size_t size, const char *logtype,
1211 const char *logname, unsigned int num,
1212 const char *suf, int per_job)
1215 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1217 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1221 * Adds a job to the list of things todo. Sanitizes the various options
1222 * to make sure we don't have conflicts, and initializes various
1225 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1226 int recursed, int client_type)
1229 char fname[PATH_MAX];
1230 int numjobs, file_alloced;
1231 struct thread_options *o = &td->o;
1232 char logname[PATH_MAX + 32];
1235 * the def_thread is just for options, it's not a real job
1237 if (td == &def_thread)
1243 * if we are just dumping the output command line, don't add the job
1245 if (parse_dryrun()) {
1250 td->client_type = client_type;
1252 if (profile_td_init(td))
1255 if (ioengine_load(td))
1259 td->io_ops->flags |= FIO_RAWIO;
1262 if (!o->filename && !td->files_index && !o->read_iolog_file) {
1265 if (o->nr_files == 1 && exists_and_not_file(jobname))
1266 add_file(td, jobname, job_add_num, 0);
1268 for (i = 0; i < o->nr_files; i++)
1269 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1273 if (fixup_options(td))
1279 * IO engines only need this for option callbacks, and the address may
1280 * change in subprocesses.
1283 *(struct thread_data **)td->eo = NULL;
1285 if (td->io_ops->flags & FIO_DISKLESSIO) {
1288 for_each_file(td, f, i)
1289 f->real_file_size = -1ULL;
1292 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1294 td->ts.clat_percentiles = o->clat_percentiles;
1295 td->ts.percentile_precision = o->percentile_precision;
1296 memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1298 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1299 td->ts.clat_stat[i].min_val = ULONG_MAX;
1300 td->ts.slat_stat[i].min_val = ULONG_MAX;
1301 td->ts.lat_stat[i].min_val = ULONG_MAX;
1302 td->ts.bw_stat[i].min_val = ULONG_MAX;
1304 td->ddir_seq_nr = o->ddir_seq_nr;
1306 if ((o->stonewall || o->new_group) && prev_group_jobs) {
1307 prev_group_jobs = 0;
1309 if (groupid == INT_MAX) {
1310 log_err("fio: too many groups defined\n");
1315 td->groupid = groupid;
1318 if (setup_random_seeds(td)) {
1319 td_verror(td, errno, "init_random_state");
1326 if (o->lat_log_file) {
1327 struct log_params p = {
1329 .avg_msec = o->log_avg_msec,
1330 .log_type = IO_LOG_TYPE_LAT,
1331 .log_offset = o->log_offset,
1332 .log_gz = o->log_gz,
1333 .log_gz_store = o->log_gz_store,
1342 gen_log_name(logname, sizeof(logname), "lat", o->lat_log_file,
1343 td->thread_number, suf, o->per_job_logs);
1344 setup_log(&td->lat_log, &p, logname);
1346 gen_log_name(logname, sizeof(logname), "slat", o->lat_log_file,
1347 td->thread_number, suf, o->per_job_logs);
1348 setup_log(&td->slat_log, &p, logname);
1350 gen_log_name(logname, sizeof(logname), "clat", o->lat_log_file,
1351 td->thread_number, suf, o->per_job_logs);
1352 setup_log(&td->clat_log, &p, logname);
1354 if (o->bw_log_file) {
1355 struct log_params p = {
1357 .avg_msec = o->log_avg_msec,
1358 .log_type = IO_LOG_TYPE_BW,
1359 .log_offset = o->log_offset,
1360 .log_gz = o->log_gz,
1361 .log_gz_store = o->log_gz_store,
1370 gen_log_name(logname, sizeof(logname), "bw", o->bw_log_file,
1371 td->thread_number, suf, o->per_job_logs);
1372 setup_log(&td->bw_log, &p, logname);
1374 if (o->iops_log_file) {
1375 struct log_params p = {
1377 .avg_msec = o->log_avg_msec,
1378 .log_type = IO_LOG_TYPE_IOPS,
1379 .log_offset = o->log_offset,
1380 .log_gz = o->log_gz,
1381 .log_gz_store = o->log_gz_store,
1390 gen_log_name(logname, sizeof(logname), "iops", o->iops_log_file,
1391 td->thread_number, suf, o->per_job_logs);
1392 setup_log(&td->iops_log, &p, logname);
1396 o->name = strdup(jobname);
1398 if (output_format & FIO_OUTPUT_NORMAL) {
1400 if (is_backend && !recursed)
1401 fio_server_send_add_job(td);
1403 if (!(td->io_ops->flags & FIO_NOIO)) {
1404 char *c1, *c2, *c3, *c4;
1405 char *c5 = NULL, *c6 = NULL;
1407 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1408 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1409 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1410 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1412 if (!o->bs_is_seq_rand) {
1413 c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1414 c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1417 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1419 ddir_str(o->td_ddir));
1421 if (o->bs_is_seq_rand)
1422 log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1425 log_info("bs=%s-%s/%s-%s/%s-%s, ",
1426 c1, c2, c3, c4, c5, c6);
1428 log_info("ioengine=%s, iodepth=%u\n",
1429 td->io_ops->name, o->iodepth);
1438 } else if (job_add_num == 1)
1443 * recurse add identical jobs, clear numjobs and stonewall options
1444 * as they don't apply to sub-jobs
1446 numjobs = o->numjobs;
1448 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1453 td_new->o.numjobs = 1;
1454 td_new->o.stonewall = 0;
1455 td_new->o.new_group = 0;
1456 td_new->subjob_number = numjobs;
1459 if (td_new->files) {
1461 for_each_file(td_new, f, i) {
1463 sfree(f->file_name);
1466 free(td_new->files);
1467 td_new->files = NULL;
1469 td_new->files_index = 0;
1470 td_new->files_size = 0;
1471 if (td_new->o.filename) {
1472 free(td_new->o.filename);
1473 td_new->o.filename = NULL;
1477 if (add_job(td_new, jobname, numjobs, 1, client_type))
1488 * Parse as if 'o' was a command line
1490 void add_job_opts(const char **o, int client_type)
1492 struct thread_data *td, *td_parent;
1493 int i, in_global = 1;
1497 td_parent = td = NULL;
1499 if (!strncmp(o[i], "name", 4)) {
1502 add_job(td, jobname, 0, 0, client_type);
1504 sprintf(jobname, "%s", o[i] + 5);
1506 if (in_global && !td_parent)
1507 td_parent = get_new_job(1, &def_thread, 0, jobname);
1508 else if (!in_global && !td) {
1510 td_parent = &def_thread;
1511 td = get_new_job(0, td_parent, 0, jobname);
1514 fio_options_parse(td_parent, (char **) &o[i], 1);
1516 fio_options_parse(td, (char **) &o[i], 1);
1521 add_job(td, jobname, 0, 0, client_type);
1524 static int skip_this_section(const char *name)
1528 if (!nr_job_sections)
1530 if (!strncmp(name, "global", 6))
1533 for (i = 0; i < nr_job_sections; i++)
1534 if (!strcmp(job_sections[i], name))
1540 static int is_empty_or_comment(char *line)
1544 for (i = 0; i < strlen(line); i++) {
1549 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1557 * This is our [ini] type file parser.
1559 int __parse_jobs_ini(struct thread_data *td,
1560 char *file, int is_buf, int stonewall_flag, int type,
1561 int nested, char *name, char ***popts, int *aopts, int *nopts)
1563 unsigned int global = 0;
1567 int ret = 0, stonewall;
1570 int inside_skip = 0;
1572 int i, alloc_opts, num_opts;
1574 dprint(FD_PARSE, "Parsing ini file %s\n", file);
1575 assert(td || !nested);
1580 if (!strcmp(file, "-"))
1583 f = fopen(file, "r");
1588 log_err("fio: unable to open '%s' job file\n", file);
1590 td_verror(td, __err, "job file open");
1595 string = malloc(4096);
1598 * it's really 256 + small bit, 280 should suffice
1602 memset(name, 0, 280);
1606 if (nested && popts) {
1608 alloc_opts = *aopts;
1614 opts = malloc(sizeof(char *) * alloc_opts);
1618 stonewall = stonewall_flag;
1621 * if skip_fgets is set, we already have loaded a line we
1626 p = strsep(&file, "\n");
1628 p = fgets(string, 4096, f);
1634 strip_blank_front(&p);
1637 dprint(FD_PARSE, "%s\n", p);
1638 if (is_empty_or_comment(p))
1642 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1646 log_err("fio: option <%s> outside of "
1647 "[] job section\n", p);
1652 name[strlen(name) - 1] = '\0';
1654 if (skip_this_section(name)) {
1660 dprint(FD_PARSE, "Parsing section [%s]\n", name);
1662 global = !strncmp(name, "global", 6);
1668 log_info("--name=%s ", name);
1672 td = get_new_job(global, &def_thread, 0, name);
1679 * Separate multiple job files by a stonewall
1681 if (!global && stonewall) {
1682 td->o.stonewall = stonewall;
1687 memset(opts, 0, alloc_opts * sizeof(char *));
1695 p = strsep(&file, "\n");
1697 p = fgets(string, 4096, f);
1700 dprint(FD_PARSE, "%s", p);
1705 if (is_empty_or_comment(p))
1708 strip_blank_front(&p);
1711 * new section, break out and make sure we don't
1712 * fgets() a new line at the top.
1716 log_err("No new sections in included files\n");
1726 if (!strncmp(p, "include", strlen("include"))) {
1727 char *filename = p + strlen("include") + 1;
1729 if ((ret = __parse_jobs_ini(td, filename,
1730 is_buf, stonewall_flag, type, 1,
1731 name, &opts, &alloc_opts, &num_opts))) {
1732 log_err("Error %d while parsing include file %s\n",
1739 if (num_opts == alloc_opts) {
1741 opts = realloc(opts,
1742 alloc_opts * sizeof(char *));
1745 opts[num_opts] = strdup(p);
1751 *aopts = alloc_opts;
1756 ret = fio_options_parse(td, opts, num_opts);
1761 ret = add_job(td, name, 0, 0, type);
1763 log_err("fio: job %s dropped\n", name);
1767 for (i = 0; i < num_opts; i++)
1776 while (i < nr_job_sections) {
1777 free(job_sections[i]);
1786 if (!is_buf && f != stdin)
1791 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1793 return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1794 0, NULL, NULL, NULL, NULL);
1797 static int fill_def_thread(void)
1799 memset(&def_thread, 0, sizeof(def_thread));
1800 INIT_FLIST_HEAD(&def_thread.opt_list);
1802 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1803 def_thread.o.error_dump = 1;
1806 * fill default options
1808 fio_fill_default_options(&def_thread);
1812 static void show_debug_categories(void)
1814 struct debug_level *dl = &debug_levels[0];
1815 int curlen, first = 1;
1819 int has_next = (dl + 1)->name != NULL;
1821 if (first || curlen + strlen(dl->name) >= 80) {
1826 curlen += printf("\t\t\t%s", dl->name);
1827 curlen += 3 * (8 - 1);
1829 curlen += printf(",");
1831 curlen += printf("%s", dl->name);
1833 curlen += printf(",");
1841 static void usage(const char *name)
1843 printf("%s\n", fio_version_string);
1844 printf("%s [options] [job options] <job file(s)>\n", name);
1845 printf(" --debug=options\tEnable debug logging. May be one/more of:\n");
1846 show_debug_categories();
1847 printf(" --parse-only\t\tParse options only, don't start any IO\n");
1848 printf(" --output\t\tWrite output to file\n");
1849 printf(" --runtime\t\tRuntime in seconds\n");
1850 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n");
1851 printf(" --minimal\t\tMinimal (terse) output\n");
1852 printf(" --output-format=x\tOutput format (terse,json,json+,normal)\n");
1853 printf(" --terse-version=x\tSet terse version output format to 'x'\n");
1854 printf(" --version\t\tPrint version info and exit\n");
1855 printf(" --help\t\tPrint this page\n");
1856 printf(" --cpuclock-test\tPerform test/validation of CPU clock\n");
1857 printf(" --crctest\t\tTest speed of checksum functions\n");
1858 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1860 printf(" --enghelp=engine\tPrint ioengine help, or list"
1861 " available ioengines\n");
1862 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
1864 printf(" --showcmd\t\tTurn a job file into command line options\n");
1865 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
1866 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
1867 printf(" --eta-newline=time\tForce a new line for every 'time'");
1868 printf(" period passed\n");
1869 printf(" --status-interval=t\tForce full status dump every");
1870 printf(" 't' period passed\n");
1871 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
1873 printf(" --section=name\tOnly run specified section in job file\n");
1874 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
1876 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
1877 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1878 printf(" --server=args\t\tStart a backend fio server\n");
1879 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
1880 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
1881 printf(" --remote-config=file\tTell fio server to load this local job file\n");
1882 printf(" --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1883 "\t\t\t(option=system,percpu) or run unit work\n"
1884 "\t\t\tcalibration only (option=calibrate)\n");
1886 printf(" --inflate-log=log\tInflate and output compressed log\n");
1888 printf(" --trigger-file=file\tExecute trigger cmd when file exists\n");
1889 printf(" --trigger-timeout=t\tExecute trigger af this time\n");
1890 printf(" --trigger=cmd\t\tSet this command as local trigger\n");
1891 printf(" --trigger-remote=cmd\tSet this command as remote trigger\n");
1892 printf(" --aux-path=path\tUse this path for fio state generated files\n");
1893 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1894 printf("\n Jens Axboe <jaxboe@fusionio.com>");
1895 printf("\n Jens Axboe <axboe@fb.com>\n");
1898 #ifdef FIO_INC_DEBUG
1899 struct debug_level debug_levels[] = {
1900 { .name = "process",
1901 .help = "Process creation/exit logging",
1902 .shift = FD_PROCESS,
1905 .help = "File related action logging",
1909 .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1913 .help = "Memory allocation/freeing logging",
1916 { .name = "blktrace",
1917 .help = "blktrace action logging",
1918 .shift = FD_BLKTRACE,
1921 .help = "IO verification action logging",
1925 .help = "Random generation logging",
1929 .help = "Parser logging",
1932 { .name = "diskutil",
1933 .help = "Disk utility logging actions",
1934 .shift = FD_DISKUTIL,
1937 .help = "Logging related to creating/destroying jobs",
1941 .help = "Mutex logging",
1944 { .name = "profile",
1945 .help = "Logging related to profiles",
1946 .shift = FD_PROFILE,
1949 .help = "Logging related to time keeping functions",
1953 .help = "Network logging",
1957 .help = "Rate logging",
1960 { .name = "compress",
1961 .help = "Log compression logging",
1962 .shift = FD_COMPRESS,
1967 static int set_debug(const char *string)
1969 struct debug_level *dl;
1970 char *p = (char *) string;
1977 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1978 log_info("fio: dumping debug options:");
1979 for (i = 0; debug_levels[i].name; i++) {
1980 dl = &debug_levels[i];
1981 log_info("%s,", dl->name);
1987 while ((opt = strsep(&p, ",")) != NULL) {
1990 if (!strncmp(opt, "all", 3)) {
1991 log_info("fio: set all debug options\n");
1996 for (i = 0; debug_levels[i].name; i++) {
1997 dl = &debug_levels[i];
1998 found = !strncmp(opt, dl->name, strlen(dl->name));
2002 if (dl->shift == FD_JOB) {
2003 opt = strchr(opt, ':');
2005 log_err("fio: missing job number\n");
2009 fio_debug_jobno = atoi(opt);
2010 log_info("fio: set debug jobno %d\n",
2013 log_info("fio: set debug option %s\n", opt);
2014 fio_debug |= (1UL << dl->shift);
2020 log_err("fio: debug mask %s not found\n", opt);
2025 static int set_debug(const char *string)
2027 log_err("fio: debug tracing not included in build\n");
2032 static void fio_options_fill_optstring(void)
2034 char *ostr = cmd_optstr;
2038 while (l_opts[i].name) {
2039 ostr[c++] = l_opts[i].val;
2040 if (l_opts[i].has_arg == required_argument)
2042 else if (l_opts[i].has_arg == optional_argument) {
2051 static int client_flag_set(char c)
2056 while (l_opts[i].name) {
2057 int val = l_opts[i].val;
2059 if (c == (val & 0xff))
2060 return (val & FIO_CLIENT_FLAG);
2068 static void parse_cmd_client(void *client, char *opt)
2070 fio_client_add_cmd_option(client, opt);
2073 static void show_closest_option(const char *name)
2075 int best_option, best_distance;
2078 while (*name == '-')
2082 best_distance = INT_MAX;
2084 while (l_opts[i].name) {
2085 distance = string_distance(name, l_opts[i].name);
2086 if (distance < best_distance) {
2087 best_distance = distance;
2093 if (best_option != -1 && string_distance_ok(name, best_distance))
2094 log_err("Did you mean %s?\n", l_opts[best_option].name);
2097 static int parse_output_format(const char *optarg)
2099 char *p, *orig, *opt;
2102 p = orig = strdup(optarg);
2106 while ((opt = strsep(&p, ",")) != NULL) {
2107 if (!strcmp(opt, "minimal") ||
2108 !strcmp(opt, "terse") ||
2109 !strcmp(opt, "csv"))
2110 output_format |= FIO_OUTPUT_TERSE;
2111 else if (!strcmp(opt, "json"))
2112 output_format |= FIO_OUTPUT_JSON;
2113 else if (!strcmp(opt, "json+"))
2114 output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2115 else if (!strcmp(opt, "normal"))
2116 output_format |= FIO_OUTPUT_NORMAL;
2118 log_err("fio: invalid output format %s\n", opt);
2128 int parse_cmd_line(int argc, char *argv[], int client_type)
2130 struct thread_data *td = NULL;
2131 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2132 char *ostr = cmd_optstr;
2133 void *pid_file = NULL;
2134 void *cur_client = NULL;
2138 * Reset optind handling, since we may call this multiple times
2143 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2144 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2145 parse_cmd_client(cur_client, argv[optind - 1]);
2146 c &= ~FIO_CLIENT_FLAG;
2151 smalloc_pool_size = atoi(optarg);
2154 if (check_str_time(optarg, &def_timeout, 1)) {
2155 log_err("fio: failed parsing time %s\n", optarg);
2161 log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2169 if (f_out && f_out != stdout)
2172 f_out = fopen(optarg, "w+");
2174 perror("fopen output");
2180 output_format = FIO_OUTPUT_TERSE;
2184 log_err("fio: missing --output-format argument\n");
2189 if (parse_output_format(optarg)) {
2190 log_err("fio: failed parsing output-format\n");
2197 output_format |= FIO_OUTPUT_TERSE;
2209 fio_show_option_help(optarg);
2216 fio_show_ioengine_help(optarg);
2230 log_info("%s\n", fio_version_string);
2235 terse_version = atoi(optarg);
2236 if (!(terse_version == 2 || terse_version == 3 ||
2237 terse_version == 4)) {
2238 log_err("fio: bad terse version format\n");
2244 if (!strcmp("always", optarg))
2245 eta_print = FIO_ETA_ALWAYS;
2246 else if (!strcmp("never", optarg))
2247 eta_print = FIO_ETA_NEVER;
2252 if (check_str_time(optarg, &t, 1)) {
2253 log_err("fio: failed parsing eta time %s\n", optarg);
2257 eta_new_line = t / 1000;
2261 if (set_debug(optarg))
2271 if (!strcmp(optarg, "global")) {
2272 log_err("fio: can't use global as only "
2278 new_size = (nr_job_sections + 1) * sizeof(char *);
2279 job_sections = realloc(job_sections, new_size);
2280 job_sections[nr_job_sections] = strdup(optarg);
2286 exit_val = iolog_file_inflate(optarg);
2295 exec_profile = strdup(optarg);
2297 case FIO_GETOPT_JOB: {
2298 const char *opt = l_opts[lidx].name;
2301 if (!strncmp(opt, "name", 4) && td) {
2302 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2309 int is_section = !strncmp(opt, "name", 4);
2312 if (!is_section || !strncmp(val, "global", 6))
2315 if (is_section && skip_this_section(val))
2318 td = get_new_job(global, &def_thread, 1, NULL);
2319 if (!td || ioengine_load(td)) {
2328 fio_options_set_ioengine_opts(l_opts, td);
2331 if ((!val || !strlen(val)) &&
2332 l_opts[lidx].has_arg == required_argument) {
2333 log_err("fio: option %s requires an argument\n", opt);
2336 ret = fio_cmd_option_parse(td, opt, val);
2347 if (!ret && !strcmp(opt, "ioengine")) {
2349 if (ioengine_load(td)) {
2356 fio_options_set_ioengine_opts(l_opts, td);
2360 case FIO_GETOPT_IOENGINE: {
2361 const char *opt = l_opts[lidx].name;
2367 ret = fio_cmd_ioengine_option_parse(td, opt, val);
2374 max_jobs = atoi(optarg);
2375 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2376 log_err("fio: invalid max jobs: %d\n", max_jobs);
2383 #ifndef CONFIG_NO_SHM
2385 log_err("fio: can't be both client and server\n");
2391 fio_server_set_arg(optarg);
2395 log_err("fio: client/server requires SHM support\n");
2403 pid_file = strdup(optarg);
2406 if ((ret = fio_idle_prof_parse_opt(optarg))) {
2407 /* exit on error and calibration only */
2417 log_err("fio: can't be both client and server\n");
2422 /* if --client parameter contains a pathname */
2423 if (0 == access(optarg, R_OK)) {
2424 /* file contains a list of host addrs or names */
2425 char hostaddr[PATH_MAX] = {0};
2427 FILE * hostf = fopen(optarg, "r");
2429 log_err("fio: could not open client list file %s for read\n", optarg);
2434 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2436 * read at most PATH_MAX-1 chars from each
2437 * record in this file
2439 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2440 /* expect EVERY host in file to be valid */
2441 if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2442 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2449 break; /* no possibility of job file for "this client only" */
2451 if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2452 log_err("fio: failed adding client %s\n", optarg);
2458 * If the next argument exists and isn't an option,
2459 * assume it's a job file for this client only.
2461 while (optind < argc) {
2462 if (!strncmp(argv[optind], "--", 2) ||
2463 !strncmp(argv[optind], "-", 1))
2466 if (fio_client_add_ini_file(cur_client, argv[optind], 0))
2473 if (fio_client_add_ini_file(cur_client, optarg, 1)) {
2481 exit_val = fio_monotonic_clocktest(1);
2486 exit_val = fio_crctest(optarg);
2491 if (check_str_time(optarg, &val, 1)) {
2492 log_err("fio: failed parsing time %s\n", optarg);
2497 status_interval = val / 1000;
2503 trigger_file = strdup(optarg);
2508 trigger_cmd = strdup(optarg);
2511 if (trigger_remote_cmd)
2512 free(trigger_remote_cmd);
2513 trigger_remote_cmd = strdup(optarg);
2518 aux_path = strdup(optarg);
2521 if (check_str_time(optarg, &trigger_timeout, 1)) {
2522 log_err("fio: failed parsing time %s\n", optarg);
2526 trigger_timeout /= 1000000;
2529 log_err("%s: unrecognized option '%s'\n", argv[0],
2531 show_closest_option(argv[optind - 1]);
2541 if (do_exit && !(is_backend || nr_clients))
2544 if (nr_clients && fio_clients_connect())
2547 if (is_backend && backend)
2548 return fio_start_server(pid_file);
2554 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2560 while (!ret && optind < argc) {
2562 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2563 ini_file[ini_idx - 1] = strdup(argv[optind]);
2574 int fio_init_options(void)
2579 fio_options_fill_optstring();
2580 fio_options_dup_and_init(l_opts);
2584 if (fill_def_thread())
2590 extern int fio_check_options(struct thread_options *);
2592 int parse_options(int argc, char *argv[])
2594 const int type = FIO_CLIENT_TYPE_CLI;
2597 if (fio_init_options())
2599 if (fio_test_cconv(&def_thread.o))
2600 log_err("fio: failed internal cconv test\n");
2602 job_files = parse_cmd_line(argc, argv, type);
2604 if (job_files > 0) {
2605 for (i = 0; i < job_files; i++) {
2606 if (i && fill_def_thread())
2609 if (fio_clients_send_ini(ini_file[i]))
2612 } else if (!is_backend) {
2613 if (parse_jobs_ini(ini_file[i], 0, i, type))
2618 } else if (nr_clients) {
2619 if (fill_def_thread())
2621 if (fio_clients_send_ini(NULL))
2626 fio_options_free(&def_thread);
2627 filesetup_mem_free();
2629 if (!thread_number) {
2634 if (is_backend || nr_clients)
2639 log_err("No jobs(s) defined\n\n");
2649 if (output_format & FIO_OUTPUT_NORMAL)
2650 log_info("%s\n", fio_version_string);
2655 void options_default_fill(struct thread_options *o)
2657 memcpy(o, &def_thread.o, sizeof(*o));
2660 struct thread_data *get_global_options(void)