2 * This file contains job initialization and setup functions.
12 #include <sys/types.h>
16 #ifndef FIO_NO_HAVE_SHM_H
29 #include "oslib/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 = required_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 || parent == &def_thread)
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_ioengine_flagged(td, 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_ioengine_flagged(td, 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_ioengine_flagged(td, 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_ioengine_flagged(td, 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_ioengine_flagged(td, 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 "
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_regfile(const char *filename)
911 if (lstat(filename, &sb) == -1)
914 #ifndef WIN32 /* NOT Windows */
915 if (S_ISREG(sb.st_mode))
918 /* \\.\ is the device namespace in Windows, where every file
919 * is a device node */
920 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
927 static void init_rand_file_service(struct thread_data *td)
929 unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
930 const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
932 if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
933 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
934 zipf_disable_hash(&td->next_file_zipf);
935 } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
936 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
937 zipf_disable_hash(&td->next_file_zipf);
938 } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
939 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
940 gauss_disable_hash(&td->next_file_gauss);
944 void td_fill_verify_state_seed(struct thread_data *td)
948 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
953 init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
957 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
961 init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF], use64);
962 td_fill_verify_state_seed(td);
963 init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
965 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
966 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
967 else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
968 init_rand_file_service(td);
970 init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
971 init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
972 init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
973 init_rand_seed(&td->poisson_state, td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
974 init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
975 init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
980 if (td->o.rand_repeatable)
981 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
983 init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
985 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
986 struct frand_state *s = &td->seq_rand_state[i];
988 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
992 void td_fill_rand_seeds(struct thread_data *td)
996 if (td->o.allrand_repeatable) {
999 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1000 td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1004 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1009 td_fill_rand_seeds_internal(td, use64);
1011 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1012 frand_copy(&td->buf_state_prev, &td->buf_state);
1016 * Initializes the ioengine configured for a job, if it has not been done so
1019 int ioengine_load(struct thread_data *td)
1024 * Engine has already been loaded.
1028 if (!td->o.ioengine) {
1029 log_err("fio: internal fault, no IO engine specified\n");
1033 engine = get_engine_name(td->o.ioengine);
1034 td->io_ops = load_ioengine(td, engine);
1036 log_err("fio: failed to load engine %s\n", engine);
1040 if (td->io_ops->option_struct_size && td->io_ops->options) {
1042 * In cases where td->eo is set, clone it for a child thread.
1043 * This requires that the parent thread has the same ioengine,
1044 * but that requirement must be enforced by the code which
1045 * cloned the thread.
1047 void *origeo = td->eo;
1049 * Otherwise use the default thread options.
1051 if (!origeo && td != &def_thread && def_thread.eo &&
1052 def_thread.io_ops->options == td->io_ops->options)
1053 origeo = def_thread.eo;
1055 options_init(td->io_ops->options);
1056 td->eo = malloc(td->io_ops->option_struct_size);
1058 * Use the default thread as an option template if this uses the
1059 * same options structure and there are non-default options
1063 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1064 options_mem_dupe(td->eo, td->io_ops->options);
1066 memset(td->eo, 0, td->io_ops->option_struct_size);
1067 fill_default_options(td->eo, td->io_ops->options);
1069 *(struct thread_data **)td->eo = td;
1073 td->io_ops->flags |= FIO_RAWIO;
1075 td_set_ioengine_flags(td);
1079 static void init_flags(struct thread_data *td)
1081 struct thread_options *o = &td->o;
1083 if (o->verify_backlog)
1084 td->flags |= TD_F_VER_BACKLOG;
1085 if (o->trim_backlog)
1086 td->flags |= TD_F_TRIM_BACKLOG;
1087 if (o->read_iolog_file)
1088 td->flags |= TD_F_READ_IOLOG;
1089 if (o->refill_buffers)
1090 td->flags |= TD_F_REFILL_BUFFERS;
1092 * Always scramble buffers if asked to
1094 if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1095 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1097 * But also scramble buffers, unless we were explicitly asked
1100 if (o->scramble_buffers && !(o->zero_buffers &&
1101 fio_option_is_set(o, zero_buffers)))
1102 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1103 if (o->verify != VERIFY_NONE)
1104 td->flags |= TD_F_VER_NONE;
1106 if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1107 td->flags |= TD_F_NEED_LOCK;
1110 static int setup_random_seeds(struct thread_data *td)
1115 if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed))
1116 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
1118 seed = td->o.rand_seed;
1119 for (i = 0; i < 4; i++)
1120 seed *= 0x9e370001UL;
1122 for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1123 td->rand_seeds[i] = seed * td->thread_number + i;
1124 seed *= 0x9e370001UL;
1127 td_fill_rand_seeds(td);
1138 static struct fpre_keyword {
1139 const char *keyword;
1142 } fpre_keywords[] = {
1143 { .keyword = "$jobname", .key = FPRE_JOBNAME, },
1144 { .keyword = "$jobnum", .key = FPRE_JOBNUM, },
1145 { .keyword = "$filenum", .key = FPRE_FILENUM, },
1146 { .keyword = NULL, },
1149 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1150 const char *jobname, int jobnum, int filenum)
1152 struct fpre_keyword *f;
1153 char copy[PATH_MAX];
1154 size_t dst_left = PATH_MAX - 1;
1156 if (!o->filename_format || !strlen(o->filename_format)) {
1157 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1161 for (f = &fpre_keywords[0]; f->keyword; f++)
1162 f->strlen = strlen(f->keyword);
1164 buf[buf_size - 1] = '\0';
1165 strncpy(buf, o->filename_format, buf_size - 1);
1167 memset(copy, 0, sizeof(copy));
1168 for (f = &fpre_keywords[0]; f->keyword; f++) {
1170 size_t pre_len, post_start = 0;
1171 char *str, *dst = copy;
1173 str = strcasestr(buf, f->keyword);
1177 pre_len = str - buf;
1178 if (strlen(str) != f->strlen)
1179 post_start = pre_len + f->strlen;
1182 strncpy(dst, buf, pre_len);
1184 dst_left -= pre_len;
1188 case FPRE_JOBNAME: {
1191 ret = snprintf(dst, dst_left, "%s", jobname);
1194 else if (ret > dst_left) {
1195 log_err("fio: truncated filename\n");
1207 ret = snprintf(dst, dst_left, "%d", jobnum);
1210 else if (ret > dst_left) {
1211 log_err("fio: truncated filename\n");
1220 case FPRE_FILENUM: {
1223 ret = snprintf(dst, dst_left, "%d", filenum);
1226 else if (ret > dst_left) {
1227 log_err("fio: truncated filename\n");
1242 strncpy(dst, buf + post_start, dst_left);
1244 strncpy(buf, copy, buf_size - 1);
1251 int parse_dryrun(void)
1253 return dump_cmdline || parse_only;
1256 static void gen_log_name(char *name, size_t size, const char *logtype,
1257 const char *logname, unsigned int num,
1258 const char *suf, int per_job)
1261 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1263 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1266 static int check_waitees(char *waitee)
1268 struct thread_data *td;
1271 for_each_td(td, i) {
1272 if (td->subjob_number)
1275 ret += !strcmp(td->o.name, waitee);
1281 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1288 if (!strcmp(jobname, o->wait_for)) {
1289 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1290 jobname, o->wait_for);
1294 if (!(nw = check_waitees(o->wait_for))) {
1295 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1300 log_err("%s: multiple waitees %s found,\n"
1301 "please avoid duplicates when using wait_for option.\n",
1302 jobname, o->wait_for);
1310 * Adds a job to the list of things todo. Sanitizes the various options
1311 * to make sure we don't have conflicts, and initializes various
1314 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1315 int recursed, int client_type)
1318 char fname[PATH_MAX];
1319 int numjobs, file_alloced;
1320 struct thread_options *o = &td->o;
1321 char logname[PATH_MAX + 32];
1324 * the def_thread is just for options, it's not a real job
1326 if (td == &def_thread)
1332 * if we are just dumping the output command line, don't add the job
1334 if (parse_dryrun()) {
1339 td->client_type = client_type;
1341 if (profile_td_init(td))
1344 if (ioengine_load(td))
1348 if (!o->filename && !td->files_index && !o->read_iolog_file) {
1351 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1352 add_file(td, jobname, job_add_num, 0);
1354 for (i = 0; i < o->nr_files; i++)
1355 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1359 if (fixup_options(td))
1363 * Belongs to fixup_options, but o->name is not necessarily set as yet
1365 if (!wait_for_ok(jobname, o))
1371 * IO engines only need this for option callbacks, and the address may
1372 * change in subprocesses.
1375 *(struct thread_data **)td->eo = NULL;
1377 if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1380 for_each_file(td, f, i)
1381 f->real_file_size = -1ULL;
1384 td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1386 td->ts.clat_percentiles = o->clat_percentiles;
1387 td->ts.percentile_precision = o->percentile_precision;
1388 memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1390 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1391 td->ts.clat_stat[i].min_val = ULONG_MAX;
1392 td->ts.slat_stat[i].min_val = ULONG_MAX;
1393 td->ts.lat_stat[i].min_val = ULONG_MAX;
1394 td->ts.bw_stat[i].min_val = ULONG_MAX;
1396 td->ddir_seq_nr = o->ddir_seq_nr;
1398 if ((o->stonewall || o->new_group) && prev_group_jobs) {
1399 prev_group_jobs = 0;
1401 if (groupid == INT_MAX) {
1402 log_err("fio: too many groups defined\n");
1407 td->groupid = groupid;
1410 if (setup_random_seeds(td)) {
1411 td_verror(td, errno, "init_random_state");
1418 if (o->lat_log_file) {
1419 struct log_params p = {
1421 .avg_msec = o->log_avg_msec,
1422 .hist_msec = o->log_hist_msec,
1423 .hist_coarseness = o->log_hist_coarseness,
1424 .log_type = IO_LOG_TYPE_LAT,
1425 .log_offset = o->log_offset,
1426 .log_gz = o->log_gz,
1427 .log_gz_store = o->log_gz_store,
1436 gen_log_name(logname, sizeof(logname), "lat", o->lat_log_file,
1437 td->thread_number, suf, o->per_job_logs);
1438 setup_log(&td->lat_log, &p, logname);
1440 gen_log_name(logname, sizeof(logname), "slat", o->lat_log_file,
1441 td->thread_number, suf, o->per_job_logs);
1442 setup_log(&td->slat_log, &p, logname);
1444 gen_log_name(logname, sizeof(logname), "clat", o->lat_log_file,
1445 td->thread_number, suf, o->per_job_logs);
1446 setup_log(&td->clat_log, &p, logname);
1449 if (o->hist_log_file) {
1450 struct log_params p = {
1452 .avg_msec = o->log_avg_msec,
1453 .hist_msec = o->log_hist_msec,
1454 .hist_coarseness = o->log_hist_coarseness,
1455 .log_type = IO_LOG_TYPE_HIST,
1456 .log_offset = o->log_offset,
1457 .log_gz = o->log_gz,
1458 .log_gz_store = o->log_gz_store,
1467 gen_log_name(logname, sizeof(logname), "clat_hist", o->hist_log_file,
1468 td->thread_number, suf, o->per_job_logs);
1469 setup_log(&td->clat_hist_log, &p, logname);
1472 if (o->bw_log_file) {
1473 struct log_params p = {
1475 .avg_msec = o->log_avg_msec,
1476 .hist_msec = o->log_hist_msec,
1477 .hist_coarseness = o->log_hist_coarseness,
1478 .log_type = IO_LOG_TYPE_BW,
1479 .log_offset = o->log_offset,
1480 .log_gz = o->log_gz,
1481 .log_gz_store = o->log_gz_store,
1485 if (fio_option_is_set(o, bw_avg_time))
1486 p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1488 o->bw_avg_time = p.avg_msec;
1490 p.hist_msec = o->log_hist_msec;
1491 p.hist_coarseness = o->log_hist_coarseness;
1498 gen_log_name(logname, sizeof(logname), "bw", o->bw_log_file,
1499 td->thread_number, suf, o->per_job_logs);
1500 setup_log(&td->bw_log, &p, logname);
1502 if (o->iops_log_file) {
1503 struct log_params p = {
1505 .avg_msec = o->log_avg_msec,
1506 .hist_msec = o->log_hist_msec,
1507 .hist_coarseness = o->log_hist_coarseness,
1508 .log_type = IO_LOG_TYPE_IOPS,
1509 .log_offset = o->log_offset,
1510 .log_gz = o->log_gz,
1511 .log_gz_store = o->log_gz_store,
1515 if (fio_option_is_set(o, iops_avg_time))
1516 p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1518 o->iops_avg_time = p.avg_msec;
1520 p.hist_msec = o->log_hist_msec;
1521 p.hist_coarseness = o->log_hist_coarseness;
1528 gen_log_name(logname, sizeof(logname), "iops", o->iops_log_file,
1529 td->thread_number, suf, o->per_job_logs);
1530 setup_log(&td->iops_log, &p, logname);
1534 o->name = strdup(jobname);
1536 if (output_format & FIO_OUTPUT_NORMAL) {
1538 if (is_backend && !recursed)
1539 fio_server_send_add_job(td);
1541 if (!td_ioengine_flagged(td, FIO_NOIO)) {
1542 char *c1, *c2, *c3, *c4;
1543 char *c5 = NULL, *c6 = NULL;
1545 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1546 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1547 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1548 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1550 if (!o->bs_is_seq_rand) {
1551 c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1552 c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1555 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1557 ddir_str(o->td_ddir));
1559 if (o->bs_is_seq_rand)
1560 log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1563 log_info("bs=%s-%s/%s-%s/%s-%s, ",
1564 c1, c2, c3, c4, c5, c6);
1566 log_info("ioengine=%s, iodepth=%u\n",
1567 td->io_ops->name, o->iodepth);
1576 } else if (job_add_num == 1)
1581 * recurse add identical jobs, clear numjobs and stonewall options
1582 * as they don't apply to sub-jobs
1584 numjobs = o->numjobs;
1586 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1591 td_new->o.numjobs = 1;
1592 td_new->o.stonewall = 0;
1593 td_new->o.new_group = 0;
1594 td_new->subjob_number = numjobs;
1597 if (td_new->files) {
1599 for_each_file(td_new, f, i) {
1601 sfree(f->file_name);
1604 free(td_new->files);
1605 td_new->files = NULL;
1607 td_new->files_index = 0;
1608 td_new->files_size = 0;
1609 if (td_new->o.filename) {
1610 free(td_new->o.filename);
1611 td_new->o.filename = NULL;
1615 if (add_job(td_new, jobname, numjobs, 1, client_type))
1626 * Parse as if 'o' was a command line
1628 void add_job_opts(const char **o, int client_type)
1630 struct thread_data *td, *td_parent;
1631 int i, in_global = 1;
1635 td_parent = td = NULL;
1637 if (!strncmp(o[i], "name", 4)) {
1640 add_job(td, jobname, 0, 0, client_type);
1642 sprintf(jobname, "%s", o[i] + 5);
1644 if (in_global && !td_parent)
1645 td_parent = get_new_job(1, &def_thread, 0, jobname);
1646 else if (!in_global && !td) {
1648 td_parent = &def_thread;
1649 td = get_new_job(0, td_parent, 0, jobname);
1652 fio_options_parse(td_parent, (char **) &o[i], 1);
1654 fio_options_parse(td, (char **) &o[i], 1);
1659 add_job(td, jobname, 0, 0, client_type);
1662 static int skip_this_section(const char *name)
1666 if (!nr_job_sections)
1668 if (!strncmp(name, "global", 6))
1671 for (i = 0; i < nr_job_sections; i++)
1672 if (!strcmp(job_sections[i], name))
1678 static int is_empty_or_comment(char *line)
1682 for (i = 0; i < strlen(line); i++) {
1687 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1695 * This is our [ini] type file parser.
1697 int __parse_jobs_ini(struct thread_data *td,
1698 char *file, int is_buf, int stonewall_flag, int type,
1699 int nested, char *name, char ***popts, int *aopts, int *nopts)
1701 unsigned int global = 0;
1705 int ret = 0, stonewall;
1708 int inside_skip = 0;
1710 int i, alloc_opts, num_opts;
1712 dprint(FD_PARSE, "Parsing ini file %s\n", file);
1713 assert(td || !nested);
1718 if (!strcmp(file, "-"))
1721 f = fopen(file, "r");
1726 log_err("fio: unable to open '%s' job file\n", file);
1728 td_verror(td, __err, "job file open");
1733 string = malloc(4096);
1736 * it's really 256 + small bit, 280 should suffice
1740 memset(name, 0, 280);
1744 if (nested && popts) {
1746 alloc_opts = *aopts;
1752 opts = malloc(sizeof(char *) * alloc_opts);
1756 stonewall = stonewall_flag;
1759 * if skip_fgets is set, we already have loaded a line we
1764 p = strsep(&file, "\n");
1766 p = fgets(string, 4096, f);
1772 strip_blank_front(&p);
1775 dprint(FD_PARSE, "%s\n", p);
1776 if (is_empty_or_comment(p))
1780 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1784 log_err("fio: option <%s> outside of "
1785 "[] job section\n", p);
1790 name[strlen(name) - 1] = '\0';
1792 if (skip_this_section(name)) {
1798 dprint(FD_PARSE, "Parsing section [%s]\n", name);
1800 global = !strncmp(name, "global", 6);
1806 log_info("--name=%s ", name);
1810 td = get_new_job(global, &def_thread, 0, name);
1817 * Separate multiple job files by a stonewall
1819 if (!global && stonewall) {
1820 td->o.stonewall = stonewall;
1825 memset(opts, 0, alloc_opts * sizeof(char *));
1833 p = strsep(&file, "\n");
1835 p = fgets(string, 4096, f);
1838 dprint(FD_PARSE, "%s", p);
1843 if (is_empty_or_comment(p))
1846 strip_blank_front(&p);
1849 * new section, break out and make sure we don't
1850 * fgets() a new line at the top.
1854 log_err("No new sections in included files\n");
1864 if (!strncmp(p, "include", strlen("include"))) {
1865 char *filename = p + strlen("include") + 1,
1866 *ts, *full_fn = NULL;
1869 * Allow for the include filename
1870 * specification to be relative.
1872 if (access(filename, F_OK) &&
1873 (ts = strrchr(file, '/'))) {
1874 int len = ts - file +
1875 strlen(filename) + 2;
1877 if (!(full_fn = calloc(1, len))) {
1883 file, (ts - file) + 1);
1884 strncpy(full_fn + (ts - file) + 1,
1885 filename, strlen(filename));
1886 full_fn[len - 1] = 0;
1890 ret = __parse_jobs_ini(td, filename, is_buf,
1891 stonewall_flag, type, 1,
1893 &alloc_opts, &num_opts);
1896 log_err("Error %d while parsing "
1897 "include file %s\n",
1910 if (num_opts == alloc_opts) {
1912 opts = realloc(opts,
1913 alloc_opts * sizeof(char *));
1916 opts[num_opts] = strdup(p);
1922 *aopts = alloc_opts;
1927 ret = fio_options_parse(td, opts, num_opts);
1932 ret = add_job(td, name, 0, 0, type);
1934 log_err("fio: job %s dropped\n", name);
1938 for (i = 0; i < num_opts; i++)
1947 while (i < nr_job_sections) {
1948 free(job_sections[i]);
1957 if (!is_buf && f != stdin)
1962 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1964 return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1965 0, NULL, NULL, NULL, NULL);
1968 static int fill_def_thread(void)
1970 memset(&def_thread, 0, sizeof(def_thread));
1971 INIT_FLIST_HEAD(&def_thread.opt_list);
1973 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1974 def_thread.o.error_dump = 1;
1977 * fill default options
1979 fio_fill_default_options(&def_thread);
1983 static void show_debug_categories(void)
1985 #ifdef FIO_INC_DEBUG
1986 struct debug_level *dl = &debug_levels[0];
1987 int curlen, first = 1;
1991 int has_next = (dl + 1)->name != NULL;
1993 if (first || curlen + strlen(dl->name) >= 80) {
1998 curlen += printf("\t\t\t%s", dl->name);
1999 curlen += 3 * (8 - 1);
2001 curlen += printf(",");
2003 curlen += printf("%s", dl->name);
2005 curlen += printf(",");
2014 static void usage(const char *name)
2016 printf("%s\n", fio_version_string);
2017 printf("%s [options] [job options] <job file(s)>\n", name);
2018 printf(" --debug=options\tEnable debug logging. May be one/more of:\n");
2019 show_debug_categories();
2020 printf(" --parse-only\t\tParse options only, don't start any IO\n");
2021 printf(" --output\t\tWrite output to file\n");
2022 printf(" --runtime\t\tRuntime in seconds\n");
2023 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n");
2024 printf(" --minimal\t\tMinimal (terse) output\n");
2025 printf(" --output-format=x\tOutput format (terse,json,json+,normal)\n");
2026 printf(" --terse-version=x\tSet terse version output format to 'x'\n");
2027 printf(" --version\t\tPrint version info and exit\n");
2028 printf(" --help\t\tPrint this page\n");
2029 printf(" --cpuclock-test\tPerform test/validation of CPU clock\n");
2030 printf(" --crctest\t\tTest speed of checksum functions\n");
2031 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2033 printf(" --enghelp=engine\tPrint ioengine help, or list"
2034 " available ioengines\n");
2035 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
2037 printf(" --showcmd\t\tTurn a job file into command line options\n");
2038 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
2039 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
2040 printf(" --eta-newline=time\tForce a new line for every 'time'");
2041 printf(" period passed\n");
2042 printf(" --status-interval=t\tForce full status dump every");
2043 printf(" 't' period passed\n");
2044 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
2046 printf(" --section=name\tOnly run specified section in job file\n");
2047 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
2049 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
2050 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2051 printf(" --server=args\t\tStart a backend fio server\n");
2052 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
2053 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
2054 printf(" --remote-config=file\tTell fio server to load this local job file\n");
2055 printf(" --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2056 "\t\t\t(option=system,percpu) or run unit work\n"
2057 "\t\t\tcalibration only (option=calibrate)\n");
2059 printf(" --inflate-log=log\tInflate and output compressed log\n");
2061 printf(" --trigger-file=file\tExecute trigger cmd when file exists\n");
2062 printf(" --trigger-timeout=t\tExecute trigger af this time\n");
2063 printf(" --trigger=cmd\t\tSet this command as local trigger\n");
2064 printf(" --trigger-remote=cmd\tSet this command as remote trigger\n");
2065 printf(" --aux-path=path\tUse this path for fio state generated files\n");
2066 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
2067 printf("\n Jens Axboe <jaxboe@fusionio.com>");
2068 printf("\n Jens Axboe <axboe@fb.com>\n");
2071 #ifdef FIO_INC_DEBUG
2072 struct debug_level debug_levels[] = {
2073 { .name = "process",
2074 .help = "Process creation/exit logging",
2075 .shift = FD_PROCESS,
2078 .help = "File related action logging",
2082 .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2086 .help = "Memory allocation/freeing logging",
2089 { .name = "blktrace",
2090 .help = "blktrace action logging",
2091 .shift = FD_BLKTRACE,
2094 .help = "IO verification action logging",
2098 .help = "Random generation logging",
2102 .help = "Parser logging",
2105 { .name = "diskutil",
2106 .help = "Disk utility logging actions",
2107 .shift = FD_DISKUTIL,
2110 .help = "Logging related to creating/destroying jobs",
2114 .help = "Mutex logging",
2117 { .name = "profile",
2118 .help = "Logging related to profiles",
2119 .shift = FD_PROFILE,
2122 .help = "Logging related to time keeping functions",
2126 .help = "Network logging",
2130 .help = "Rate logging",
2133 { .name = "compress",
2134 .help = "Log compression logging",
2135 .shift = FD_COMPRESS,
2140 static int set_debug(const char *string)
2142 struct debug_level *dl;
2143 char *p = (char *) string;
2150 if (!strcmp(string, "?") || !strcmp(string, "help")) {
2151 log_info("fio: dumping debug options:");
2152 for (i = 0; debug_levels[i].name; i++) {
2153 dl = &debug_levels[i];
2154 log_info("%s,", dl->name);
2160 while ((opt = strsep(&p, ",")) != NULL) {
2163 if (!strncmp(opt, "all", 3)) {
2164 log_info("fio: set all debug options\n");
2169 for (i = 0; debug_levels[i].name; i++) {
2170 dl = &debug_levels[i];
2171 found = !strncmp(opt, dl->name, strlen(dl->name));
2175 if (dl->shift == FD_JOB) {
2176 opt = strchr(opt, ':');
2178 log_err("fio: missing job number\n");
2182 fio_debug_jobno = atoi(opt);
2183 log_info("fio: set debug jobno %d\n",
2186 log_info("fio: set debug option %s\n", opt);
2187 fio_debug |= (1UL << dl->shift);
2193 log_err("fio: debug mask %s not found\n", opt);
2198 static int set_debug(const char *string)
2200 log_err("fio: debug tracing not included in build\n");
2205 static void fio_options_fill_optstring(void)
2207 char *ostr = cmd_optstr;
2211 while (l_opts[i].name) {
2212 ostr[c++] = l_opts[i].val;
2213 if (l_opts[i].has_arg == required_argument)
2215 else if (l_opts[i].has_arg == optional_argument) {
2224 static int client_flag_set(char c)
2229 while (l_opts[i].name) {
2230 int val = l_opts[i].val;
2232 if (c == (val & 0xff))
2233 return (val & FIO_CLIENT_FLAG);
2241 static void parse_cmd_client(void *client, char *opt)
2243 fio_client_add_cmd_option(client, opt);
2246 static void show_closest_option(const char *name)
2248 int best_option, best_distance;
2251 while (*name == '-')
2255 best_distance = INT_MAX;
2257 while (l_opts[i].name) {
2258 distance = string_distance(name, l_opts[i].name);
2259 if (distance < best_distance) {
2260 best_distance = distance;
2266 if (best_option != -1 && string_distance_ok(name, best_distance))
2267 log_err("Did you mean %s?\n", l_opts[best_option].name);
2270 static int parse_output_format(const char *optarg)
2272 char *p, *orig, *opt;
2275 p = orig = strdup(optarg);
2279 while ((opt = strsep(&p, ",")) != NULL) {
2280 if (!strcmp(opt, "minimal") ||
2281 !strcmp(opt, "terse") ||
2282 !strcmp(opt, "csv"))
2283 output_format |= FIO_OUTPUT_TERSE;
2284 else if (!strcmp(opt, "json"))
2285 output_format |= FIO_OUTPUT_JSON;
2286 else if (!strcmp(opt, "json+"))
2287 output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2288 else if (!strcmp(opt, "normal"))
2289 output_format |= FIO_OUTPUT_NORMAL;
2291 log_err("fio: invalid output format %s\n", opt);
2301 int parse_cmd_line(int argc, char *argv[], int client_type)
2303 struct thread_data *td = NULL;
2304 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2305 char *ostr = cmd_optstr;
2306 char *pid_file = NULL;
2307 void *cur_client = NULL;
2311 * Reset optind handling, since we may call this multiple times
2316 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2317 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2318 parse_cmd_client(cur_client, argv[optind - 1]);
2319 c &= ~FIO_CLIENT_FLAG;
2324 smalloc_pool_size = atoi(optarg);
2327 if (check_str_time(optarg, &def_timeout, 1)) {
2328 log_err("fio: failed parsing time %s\n", optarg);
2334 log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2342 if (f_out && f_out != stdout)
2345 f_out = fopen(optarg, "w+");
2347 perror("fopen output");
2353 output_format = FIO_OUTPUT_TERSE;
2356 if (parse_output_format(optarg)) {
2357 log_err("fio: failed parsing output-format\n");
2364 output_format |= FIO_OUTPUT_TERSE;
2376 fio_show_option_help(optarg);
2383 fio_show_ioengine_help(optarg);
2397 log_info("%s\n", fio_version_string);
2402 terse_version = atoi(optarg);
2403 if (!(terse_version == 2 || terse_version == 3 ||
2404 terse_version == 4)) {
2405 log_err("fio: bad terse version format\n");
2411 if (!strcmp("always", optarg))
2412 eta_print = FIO_ETA_ALWAYS;
2413 else if (!strcmp("never", optarg))
2414 eta_print = FIO_ETA_NEVER;
2419 if (check_str_time(optarg, &t, 1)) {
2420 log_err("fio: failed parsing eta time %s\n", optarg);
2424 eta_new_line = t / 1000;
2428 if (set_debug(optarg))
2438 if (!strcmp(optarg, "global")) {
2439 log_err("fio: can't use global as only "
2445 new_size = (nr_job_sections + 1) * sizeof(char *);
2446 job_sections = realloc(job_sections, new_size);
2447 job_sections[nr_job_sections] = strdup(optarg);
2453 exit_val = iolog_file_inflate(optarg);
2462 exec_profile = strdup(optarg);
2464 case FIO_GETOPT_JOB: {
2465 const char *opt = l_opts[lidx].name;
2468 if (!strncmp(opt, "name", 4) && td) {
2469 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2476 int is_section = !strncmp(opt, "name", 4);
2479 if (!is_section || !strncmp(val, "global", 6))
2482 if (is_section && skip_this_section(val))
2485 td = get_new_job(global, &def_thread, 1, NULL);
2486 if (!td || ioengine_load(td)) {
2495 fio_options_set_ioengine_opts(l_opts, td);
2498 if ((!val || !strlen(val)) &&
2499 l_opts[lidx].has_arg == required_argument) {
2500 log_err("fio: option %s requires an argument\n", opt);
2503 ret = fio_cmd_option_parse(td, opt, val);
2514 if (!ret && !strcmp(opt, "ioengine")) {
2516 if (ioengine_load(td)) {
2523 fio_options_set_ioengine_opts(l_opts, td);
2527 case FIO_GETOPT_IOENGINE: {
2528 const char *opt = l_opts[lidx].name;
2534 ret = fio_cmd_ioengine_option_parse(td, opt, val);
2541 max_jobs = atoi(optarg);
2542 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2543 log_err("fio: invalid max jobs: %d\n", max_jobs);
2550 #ifndef CONFIG_NO_SHM
2552 log_err("fio: can't be both client and server\n");
2558 fio_server_set_arg(optarg);
2562 log_err("fio: client/server requires SHM support\n");
2570 pid_file = strdup(optarg);
2573 if ((ret = fio_idle_prof_parse_opt(optarg))) {
2574 /* exit on error and calibration only */
2584 log_err("fio: can't be both client and server\n");
2589 /* if --client parameter contains a pathname */
2590 if (0 == access(optarg, R_OK)) {
2591 /* file contains a list of host addrs or names */
2592 char hostaddr[PATH_MAX] = {0};
2594 FILE * hostf = fopen(optarg, "r");
2596 log_err("fio: could not open client list file %s for read\n", optarg);
2601 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2603 * read at most PATH_MAX-1 chars from each
2604 * record in this file
2606 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2607 /* expect EVERY host in file to be valid */
2608 if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2609 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2616 break; /* no possibility of job file for "this client only" */
2618 if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2619 log_err("fio: failed adding client %s\n", optarg);
2625 * If the next argument exists and isn't an option,
2626 * assume it's a job file for this client only.
2628 while (optind < argc) {
2629 if (!strncmp(argv[optind], "--", 2) ||
2630 !strncmp(argv[optind], "-", 1))
2633 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2640 if (fio_client_add_ini_file(cur_client, optarg, true)) {
2648 exit_val = fio_monotonic_clocktest(1);
2653 exit_val = fio_crctest(optarg);
2658 if (check_str_time(optarg, &val, 1)) {
2659 log_err("fio: failed parsing time %s\n", optarg);
2664 status_interval = val / 1000;
2670 trigger_file = strdup(optarg);
2675 trigger_cmd = strdup(optarg);
2678 if (trigger_remote_cmd)
2679 free(trigger_remote_cmd);
2680 trigger_remote_cmd = strdup(optarg);
2685 aux_path = strdup(optarg);
2688 if (check_str_time(optarg, &trigger_timeout, 1)) {
2689 log_err("fio: failed parsing time %s\n", optarg);
2693 trigger_timeout /= 1000000;
2696 log_err("%s: unrecognized option '%s'\n", argv[0],
2698 show_closest_option(argv[optind - 1]);
2708 if (do_exit && !(is_backend || nr_clients))
2711 if (nr_clients && fio_clients_connect())
2714 if (is_backend && backend)
2715 return fio_start_server(pid_file);
2721 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2727 while (!ret && optind < argc) {
2729 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2730 ini_file[ini_idx - 1] = strdup(argv[optind]);
2741 int fio_init_options(void)
2746 fio_options_fill_optstring();
2747 fio_options_dup_and_init(l_opts);
2751 if (fill_def_thread())
2757 extern int fio_check_options(struct thread_options *);
2759 int parse_options(int argc, char *argv[])
2761 const int type = FIO_CLIENT_TYPE_CLI;
2764 if (fio_init_options())
2766 if (fio_test_cconv(&def_thread.o))
2767 log_err("fio: failed internal cconv test\n");
2769 job_files = parse_cmd_line(argc, argv, type);
2771 if (job_files > 0) {
2772 for (i = 0; i < job_files; i++) {
2773 if (i && fill_def_thread())
2776 if (fio_clients_send_ini(ini_file[i]))
2779 } else if (!is_backend) {
2780 if (parse_jobs_ini(ini_file[i], 0, i, type))
2785 } else if (nr_clients) {
2786 if (fill_def_thread())
2788 if (fio_clients_send_ini(NULL))
2793 fio_options_free(&def_thread);
2794 filesetup_mem_free();
2796 if (!thread_number) {
2801 if (is_backend || nr_clients)
2806 log_err("No jobs(s) defined\n\n");
2816 if (output_format & FIO_OUTPUT_NORMAL)
2817 log_info("%s\n", fio_version_string);
2822 void options_default_fill(struct thread_options *o)
2824 memcpy(o, &def_thread.o, sizeof(*o));
2827 struct thread_data *get_global_options(void)