2 * This file contains job initialization and setup functions.
11 #include <sys/types.h>
13 #ifdef CONFIG_VALGRIND_DEV
14 #include <valgrind/drd.h>
16 #define DRD_IGNORE_VAR(x) do { } while (0)
20 #ifndef FIO_NO_HAVE_SHM_H
32 #include "steadystate.h"
35 #include "oslib/asprintf.h"
36 #include "oslib/getopt.h"
37 #include "oslib/strcasestr.h"
41 #include "lib/memcpy.h"
43 const char fio_version_string[] = FIO_VERSION;
45 #define FIO_RANDSEED (0xb1899bedUL)
47 static char **ini_file;
48 static bool dump_cmdline;
49 static bool parse_only;
50 static bool merge_blktrace_only;
52 static struct thread_data def_thread;
53 struct thread_segment segments[REAL_MAX_SEG];
54 static char **job_sections;
55 static int nr_job_sections;
57 bool exitall_on_terminate = false;
58 int output_format = FIO_OUTPUT_NORMAL;
59 int eta_print = FIO_ETA_AUTO;
60 unsigned int eta_interval_msec = 1000;
64 char *exec_profile = NULL;
65 int warnings_fatal = 0;
66 int terse_version = 3;
67 bool is_backend = false;
68 bool is_local_backend = false;
70 bool log_syslog = false;
72 bool write_bw_log = false;
73 bool read_only = false;
74 int status_interval = 0;
76 char *trigger_file = NULL;
77 long long trigger_timeout = 0;
78 char *trigger_cmd = NULL;
79 char *trigger_remote_cmd = NULL;
81 char *aux_path = NULL;
83 static int prev_group_jobs;
85 unsigned long fio_debug = 0;
86 unsigned int fio_debug_jobno = -1;
87 unsigned int *fio_debug_jobp = NULL;
88 unsigned int *fio_warned = NULL;
90 static char cmd_optstr[256];
93 #define FIO_CLIENT_FLAG (1 << 16)
96 * Command line options. These will contain the above, plus a few
97 * extra that only pertain to fio itself and not jobs.
99 static struct option l_opts[FIO_NR_OPTIONS] = {
101 .name = (char *) "output",
102 .has_arg = required_argument,
103 .val = 'o' | FIO_CLIENT_FLAG,
106 .name = (char *) "latency-log",
107 .has_arg = required_argument,
108 .val = 'l' | FIO_CLIENT_FLAG,
111 .name = (char *) "bandwidth-log",
112 .has_arg = no_argument,
113 .val = 'b' | FIO_CLIENT_FLAG,
116 .name = (char *) "minimal",
117 .has_arg = no_argument,
118 .val = 'm' | FIO_CLIENT_FLAG,
121 .name = (char *) "output-format",
122 .has_arg = required_argument,
123 .val = 'F' | FIO_CLIENT_FLAG,
126 .name = (char *) "append-terse",
127 .has_arg = optional_argument,
131 .name = (char *) "version",
132 .has_arg = no_argument,
133 .val = 'v' | FIO_CLIENT_FLAG,
136 .name = (char *) "help",
137 .has_arg = no_argument,
138 .val = 'h' | FIO_CLIENT_FLAG,
141 .name = (char *) "cmdhelp",
142 .has_arg = optional_argument,
143 .val = 'c' | FIO_CLIENT_FLAG,
146 .name = (char *) "enghelp",
147 .has_arg = optional_argument,
148 .val = 'i' | FIO_CLIENT_FLAG,
151 .name = (char *) "showcmd",
152 .has_arg = no_argument,
153 .val = 's' | FIO_CLIENT_FLAG,
156 .name = (char *) "readonly",
157 .has_arg = no_argument,
158 .val = 'r' | FIO_CLIENT_FLAG,
161 .name = (char *) "eta",
162 .has_arg = required_argument,
163 .val = 'e' | FIO_CLIENT_FLAG,
166 .name = (char *) "eta-interval",
167 .has_arg = required_argument,
168 .val = 'O' | FIO_CLIENT_FLAG,
171 .name = (char *) "eta-newline",
172 .has_arg = required_argument,
173 .val = 'E' | FIO_CLIENT_FLAG,
176 .name = (char *) "debug",
177 .has_arg = required_argument,
178 .val = 'd' | FIO_CLIENT_FLAG,
181 .name = (char *) "parse-only",
182 .has_arg = no_argument,
183 .val = 'P' | FIO_CLIENT_FLAG,
186 .name = (char *) "section",
187 .has_arg = required_argument,
188 .val = 'x' | FIO_CLIENT_FLAG,
192 .name = (char *) "inflate-log",
193 .has_arg = required_argument,
194 .val = 'X' | FIO_CLIENT_FLAG,
198 .name = (char *) "alloc-size",
199 .has_arg = required_argument,
200 .val = 'a' | FIO_CLIENT_FLAG,
203 .name = (char *) "profile",
204 .has_arg = required_argument,
205 .val = 'p' | FIO_CLIENT_FLAG,
208 .name = (char *) "warnings-fatal",
209 .has_arg = no_argument,
210 .val = 'w' | FIO_CLIENT_FLAG,
213 .name = (char *) "max-jobs",
214 .has_arg = required_argument,
215 .val = 'j' | FIO_CLIENT_FLAG,
218 .name = (char *) "terse-version",
219 .has_arg = required_argument,
220 .val = 'V' | FIO_CLIENT_FLAG,
223 .name = (char *) "server",
224 .has_arg = optional_argument,
227 { .name = (char *) "daemonize",
228 .has_arg = required_argument,
232 .name = (char *) "client",
233 .has_arg = required_argument,
237 .name = (char *) "remote-config",
238 .has_arg = required_argument,
242 .name = (char *) "cpuclock-test",
243 .has_arg = no_argument,
247 .name = (char *) "crctest",
248 .has_arg = optional_argument,
252 .name = (char *) "memcpytest",
253 .has_arg = optional_argument,
257 .name = (char *) "idle-prof",
258 .has_arg = required_argument,
262 .name = (char *) "status-interval",
263 .has_arg = required_argument,
264 .val = 'L' | FIO_CLIENT_FLAG,
267 .name = (char *) "trigger-file",
268 .has_arg = required_argument,
272 .name = (char *) "trigger-timeout",
273 .has_arg = required_argument,
277 .name = (char *) "trigger",
278 .has_arg = required_argument,
282 .name = (char *) "trigger-remote",
283 .has_arg = required_argument,
287 .name = (char *) "aux-path",
288 .has_arg = required_argument,
292 .name = (char *) "merge-blktrace-only",
293 .has_arg = no_argument,
294 .val = 'A' | FIO_CLIENT_FLAG,
301 void free_threads_shm(void)
305 for (i = 0; i < nr_segments; i++) {
306 struct thread_segment *seg = &segments[i];
309 void *tp = seg->threads;
310 #ifndef CONFIG_NO_SHM
311 struct shmid_ds sbuf;
315 shmctl(seg->shm_id, IPC_RMID, &sbuf);
328 static void free_shm(void)
330 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
333 fio_debug_jobp = NULL;
340 free(trigger_remote_cmd);
341 trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
343 options_free(fio_options, &def_thread.o);
350 static int add_thread_segment(void)
352 struct thread_segment *seg = &segments[nr_segments];
353 size_t size = JOBS_PER_SEG * sizeof(struct thread_data);
356 if (nr_segments + 1 >= REAL_MAX_SEG) {
357 log_err("error: maximum number of jobs reached.\n");
361 size += 2 * sizeof(unsigned int);
363 #ifndef CONFIG_NO_SHM
364 seg->shm_id = shmget(0, size, IPC_CREAT | 0600);
365 if (seg->shm_id == -1) {
366 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC)
371 seg->threads = malloc(size);
376 #ifndef CONFIG_NO_SHM
377 seg->threads = shmat(seg->shm_id, NULL, 0);
378 if (seg->threads == (void *) -1) {
382 if (shm_attach_to_open_removed())
383 shmctl(seg->shm_id, IPC_RMID, NULL);
388 memset(seg->threads, 0, JOBS_PER_SEG * sizeof(struct thread_data));
389 for (i = 0; i < JOBS_PER_SEG; i++)
390 DRD_IGNORE_VAR(seg->threads[i]);
393 /* Not first segment, we're done */
394 if (nr_segments != 1) {
399 fio_debug_jobp = (unsigned int *)(seg->threads + JOBS_PER_SEG);
400 *fio_debug_jobp = -1;
401 fio_warned = fio_debug_jobp + 1;
409 * The thread areas are shared between the main process and the job
410 * threads/processes, and is split into chunks of JOBS_PER_SEG. If the current
411 * segment has no more room, add a new chunk.
413 static int expand_thread_area(void)
415 struct thread_segment *seg = &segments[cur_segment];
417 if (nr_segments && seg->nr_threads < JOBS_PER_SEG)
420 return add_thread_segment();
423 static void dump_print_option(struct print_option *p)
427 if (!strcmp("description", p->name))
432 log_info("--%s%s", p->name, p->value ? "" : " ");
434 log_info("=%s%s%s ", delim, p->value, delim);
437 static void dump_opt_list(struct thread_data *td)
439 struct flist_head *entry;
440 struct print_option *p;
442 if (flist_empty(&td->opt_list))
445 flist_for_each(entry, &td->opt_list) {
446 p = flist_entry(entry, struct print_option, list);
447 dump_print_option(p);
451 static void fio_dump_options_free(struct thread_data *td)
453 while (!flist_empty(&td->opt_list)) {
454 struct print_option *p;
456 p = flist_first_entry(&td->opt_list, struct print_option, list);
457 flist_del_init(&p->list);
464 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
466 struct flist_head *entry;
468 if (flist_empty(&src->opt_list))
471 flist_for_each(entry, &src->opt_list) {
472 struct print_option *srcp, *dstp;
474 srcp = flist_entry(entry, struct print_option, list);
475 dstp = malloc(sizeof(*dstp));
476 dstp->name = strdup(srcp->name);
478 dstp->value = strdup(srcp->value);
481 flist_add_tail(&dstp->list, &dst->opt_list);
486 * Return a free job structure.
488 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
489 bool preserve_eo, const char *jobname)
491 struct thread_segment *seg;
492 struct thread_data *td;
496 if (expand_thread_area()) {
497 log_err("error: failed to setup shm segment\n");
501 seg = &segments[cur_segment];
502 td = &seg->threads[seg->nr_threads++];
506 INIT_FLIST_HEAD(&td->opt_list);
507 if (parent != &def_thread)
508 copy_opt_list(td, parent);
515 td->o.uid = td->o.gid = -1U;
517 dup_files(td, parent);
518 fio_options_mem_dupe(td);
520 profile_add_hooks(td);
522 td->thread_number = thread_number;
523 td->subjob_number = 0;
526 td->o.name = strdup(jobname);
528 if (!parent->o.group_reporting || parent == &def_thread)
534 static void put_job(struct thread_data *td)
536 if (td == &def_thread)
543 log_info("fio: %s\n", td->verror);
545 fio_options_free(td);
546 fio_dump_options_free(td);
553 memset(td, 0, sizeof(*td));
554 segments[cur_segment].nr_threads--;
558 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
560 unsigned long long bs = td->o.min_bs[ddir];
562 assert(ddir_rw(ddir));
564 if (td->o.rate[ddir])
565 td->rate_bps[ddir] = td->o.rate[ddir];
567 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
569 if (!td->rate_bps[ddir]) {
570 log_err("rate lower than supported\n");
574 td->rate_next_io_time[ddir] = 0;
575 td->rate_io_issue_bytes[ddir] = 0;
576 td->last_usec[ddir] = 0;
580 static int setup_rate(struct thread_data *td)
584 for_each_rw_ddir(ddir) {
585 if (td->o.rate[ddir] || td->o.rate_iops[ddir]) {
586 ret |= __setup_rate(td, ddir);
592 static int fixed_block_size(struct thread_options *o)
594 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
595 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
596 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
597 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
598 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
604 static unsigned int gcd(unsigned int m, unsigned int n)
609 return gcd(n, m % n);
613 * Lazy way of fixing up options that depend on each other. We could also
614 * define option callback handlers, but this is easier.
616 static int fixup_options(struct thread_data *td)
618 struct thread_options *o = &td->o;
621 if (read_only && (td_write(td) || td_trim(td))) {
622 log_err("fio: trim and write operations are not allowed"
623 " with the --readonly parameter.\n");
627 #ifndef CONFIG_PSHARED
628 if (!o->use_thread) {
629 log_info("fio: this platform does not support process shared"
630 " mutexes, forcing use of threads. Use the 'thread'"
631 " option to get rid of this warning.\n");
633 ret |= warnings_fatal;
637 if (o->write_iolog_file && o->read_iolog_file) {
638 log_err("fio: read iolog overrides write_iolog\n");
639 free(o->write_iolog_file);
640 o->write_iolog_file = NULL;
641 ret |= warnings_fatal;
644 if (o->zone_mode == ZONE_MODE_NONE && o->zone_size) {
645 log_err("fio: --zonemode=none and --zonesize are not compatible.\n");
649 if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_size) {
650 log_err("fio: --zonesize must be specified when using --zonemode=strided.\n");
654 if (o->zone_mode == ZONE_MODE_NOT_SPECIFIED) {
656 o->zone_mode = ZONE_MODE_STRIDED;
658 o->zone_mode = ZONE_MODE_NONE;
662 * Strided zone mode only really works with 1 file.
664 if (o->zone_mode == ZONE_MODE_STRIDED && o->open_files > 1)
665 o->zone_mode = ZONE_MODE_NONE;
668 * If zone_range isn't specified, backward compatibility dictates it
669 * should be made equal to zone_size.
671 if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_range)
672 o->zone_range = o->zone_size;
675 * Reads can do overwrites, we always need to pre-create the file
680 for_each_rw_ddir(ddir) {
681 if (!o->min_bs[ddir])
682 o->min_bs[ddir] = o->bs[ddir];
683 if (!o->max_bs[ddir])
684 o->max_bs[ddir] = o->bs[ddir];
688 for_each_rw_ddir(ddir) {
689 o->rw_min_bs = min(o->rw_min_bs, o->min_bs[ddir]);
693 * For random IO, allow blockalign offset other than min_bs.
695 for_each_rw_ddir(ddir) {
696 if (!o->ba[ddir] || !td_random(td))
697 o->ba[ddir] = o->min_bs[ddir];
700 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
701 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
702 o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
704 log_err("fio: Any use of blockalign= turns off randommap\n");
706 ret |= warnings_fatal;
709 if (!o->file_size_high)
710 o->file_size_high = o->file_size_low;
712 if (o->start_delay_high) {
713 if (!o->start_delay_orig)
714 o->start_delay_orig = o->start_delay;
715 o->start_delay = rand_between(&td->delay_state,
717 o->start_delay_high);
720 if (o->norandommap && o->verify != VERIFY_NONE
721 && !fixed_block_size(o)) {
722 log_err("fio: norandommap given for variable block sizes, "
724 ret |= warnings_fatal;
726 if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
727 log_err("fio: bs_unaligned may not work with raw io\n");
730 * thinktime_spin must be less than thinktime
732 if (o->thinktime_spin > o->thinktime)
733 o->thinktime_spin = o->thinktime;
736 * The low water mark cannot be bigger than the iodepth
738 if (o->iodepth_low > o->iodepth || !o->iodepth_low)
739 o->iodepth_low = o->iodepth;
742 * If batch number isn't set, default to the same as iodepth
744 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
745 o->iodepth_batch = o->iodepth;
748 * If max batch complete number isn't set or set incorrectly,
749 * default to the same as iodepth_batch_complete_min
751 if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
752 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
755 * There's no need to check for in-flight overlapping IOs if the job
756 * isn't changing data or the maximum iodepth is guaranteed to be 1
757 * when we are not in offload mode
759 if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
760 (!(td_write(td) || td_trim(td)) || o->iodepth == 1) &&
761 o->io_submit_mode != IO_MODE_OFFLOAD)
762 o->serialize_overlap = 0;
764 if (o->nr_files > td->files_index)
765 o->nr_files = td->files_index;
767 if (o->open_files > o->nr_files || !o->open_files)
768 o->open_files = o->nr_files;
770 if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
771 (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
772 ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
773 (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
774 log_err("fio: rate and rate_iops are mutually exclusive\n");
777 for_each_rw_ddir(ddir) {
778 if ((o->rate[ddir] && (o->rate[ddir] < o->ratemin[ddir])) ||
779 (o->rate_iops[ddir] && (o->rate_iops[ddir] < o->rate_iops_min[ddir]))) {
780 log_err("fio: minimum rate exceeds rate, ddir %d\n", +ddir);
785 if (!o->timeout && o->time_based) {
786 log_err("fio: time_based requires a runtime/timeout setting\n");
788 ret |= warnings_fatal;
791 if (o->fill_device && !o->size)
794 if (o->verify != VERIFY_NONE) {
795 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
797 !(o->unique_filename &&
798 strstr(o->filename_format, "$jobname") &&
799 strstr(o->filename_format, "$jobnum") &&
800 strstr(o->filename_format, "$filenum")))) {
801 log_info("fio: multiple writers may overwrite blocks "
802 "that belong to other jobs. This can cause "
803 "verification failures.\n");
804 ret |= warnings_fatal;
808 * Warn if verification is requested but no verification of any
809 * kind can be started due to time constraints
811 if (td_write(td) && o->do_verify && o->timeout &&
812 o->time_based && !td_read(td) && !o->verify_backlog) {
813 log_info("fio: verification read phase will never "
814 "start because write phase uses all of "
816 ret |= warnings_fatal;
819 if (!fio_option_is_set(o, refill_buffers))
820 o->refill_buffers = 1;
822 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
824 o->verify_interval = o->min_bs[DDIR_WRITE];
827 * Verify interval must be smaller or equal to the
830 if (o->verify_interval > o->min_bs[DDIR_WRITE])
831 o->verify_interval = o->min_bs[DDIR_WRITE];
832 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
833 o->verify_interval = o->min_bs[DDIR_READ];
836 * Verify interval must be a factor of both min and max
839 if (!o->verify_interval ||
840 (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
841 (o->max_bs[DDIR_WRITE] % o->verify_interval))
842 o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
843 o->max_bs[DDIR_WRITE]);
847 if (o->invalidate_cache)
848 o->invalidate_cache = 0;
849 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
850 log_info("fio: cannot pre-read files with an IO engine"
851 " that isn't seekable. Pre-read disabled.\n");
852 ret |= warnings_fatal;
856 if (o->unit_base == N2S_NONE) {
857 if (td_ioengine_flagged(td, FIO_BIT_BASED))
858 o->unit_base = N2S_BITPERSEC;
860 o->unit_base = N2S_BYTEPERSEC;
863 #ifndef CONFIG_FDATASYNC
864 if (o->fdatasync_blocks) {
865 log_info("fio: this platform does not support fdatasync()"
866 " falling back to using fsync(). Use the 'fsync'"
867 " option instead of 'fdatasync' to get rid of"
869 o->fsync_blocks = o->fdatasync_blocks;
870 o->fdatasync_blocks = 0;
871 ret |= warnings_fatal;
877 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
878 * so fail if we're passed those flags
880 if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
881 log_err("fio: Windows does not support direct or non-buffered io with"
882 " the synchronous ioengines. Use the 'windowsaio' ioengine"
883 " with 'direct=1' and 'iodepth=1' instead.\n");
889 * For fully compressible data, just zero them at init time.
890 * It's faster than repeatedly filling it. For non-zero
891 * compression, we should have refill_buffers set. Set it, unless
892 * the job file already changed it.
894 if (o->compress_percentage) {
895 if (o->compress_percentage == 100) {
897 o->compress_percentage = 0;
898 } else if (!fio_option_is_set(o, refill_buffers)) {
899 o->refill_buffers = 1;
900 td->flags |= TD_F_REFILL_BUFFERS;
905 * Using a non-uniform random distribution excludes usage of
908 if (o->random_distribution != FIO_RAND_DIST_RANDOM)
912 * If size is set but less than the min block size, complain
914 if (o->size && o->size < td_min_bs(td)) {
915 log_err("fio: size too small, must not be less than minimum block size: %llu < %llu\n",
916 (unsigned long long) o->size, td_min_bs(td));
921 * O_ATOMIC implies O_DIRECT
927 * If randseed is set, that overrides randrepeat
929 if (fio_option_is_set(o, rand_seed))
930 o->rand_repeatable = 0;
932 if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
933 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
937 if (fio_option_is_set(o, gtod_cpu)) {
939 fio_gtod_set_cpu(o->gtod_cpu);
940 fio_gtod_offload = 1;
943 td->loops = o->loops;
947 if (o->block_error_hist && o->nr_files != 1) {
948 log_err("fio: block error histogram only available "
949 "with a single file per job, but %d files "
950 "provided\n", o->nr_files);
955 o->lat_percentiles = 0;
957 o->clat_percentiles = 0;
959 o->slat_percentiles = 0;
962 * Fix these up to be nsec internally
964 o->max_latency *= 1000ULL;
965 o->latency_target *= 1000ULL;
970 static void init_rand_file_service(struct thread_data *td)
972 unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
973 const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
975 if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
976 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, td->random_center, seed);
977 zipf_disable_hash(&td->next_file_zipf);
978 } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
979 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, td->random_center, seed);
980 zipf_disable_hash(&td->next_file_zipf);
981 } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
982 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, td->random_center, seed);
983 gauss_disable_hash(&td->next_file_gauss);
987 void td_fill_verify_state_seed(struct thread_data *td)
991 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
996 init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
1000 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
1002 uint64_t read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
1003 uint64_t write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
1004 uint64_t trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
1008 * trimwrite is special in that we need to generate the same
1009 * offsets to get the "write after trim" effect. If we are
1010 * using bssplit to set buffer length distributions, ensure that
1011 * we seed the trim and write generators identically. Ditto for
1012 * verify, read and writes must have the same seed, if we are doing
1015 if (td->o.verify != VERIFY_NONE)
1016 write_seed = read_seed;
1017 if (td_trimwrite(td))
1018 trim_seed = write_seed;
1019 init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1020 init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1021 init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1023 td_fill_verify_state_seed(td);
1024 init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1026 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1027 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1028 else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1029 init_rand_file_service(td);
1031 init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1032 init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1033 init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1034 init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1035 init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1036 init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1037 init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1038 init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1039 init_rand_seed(&td->prio_state, td->rand_seeds[FIO_RAND_PRIO_CMDS], false);
1044 if (td->o.rand_repeatable)
1045 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1047 init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1049 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1050 struct frand_state *s = &td->seq_rand_state[i];
1052 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1056 void td_fill_rand_seeds(struct thread_data *td)
1060 if (td->o.allrand_repeatable) {
1063 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1064 td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1068 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1073 td_fill_rand_seeds_internal(td, use64);
1075 init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1076 frand_copy(&td->buf_state_prev, &td->buf_state);
1080 * Initializes the ioengine configured for a job, if it has not been done so
1083 int ioengine_load(struct thread_data *td)
1085 if (!td->o.ioengine) {
1086 log_err("fio: internal fault, no IO engine specified\n");
1091 struct ioengine_ops *ops;
1094 /* An engine is loaded, but the requested ioengine
1097 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1098 /* The right engine is already loaded */
1103 * Name of file and engine may be different, load ops
1104 * for this name and see if they match. If they do, then
1105 * the engine is unchanged.
1107 dlhandle = td->io_ops->dlhandle;
1108 ops = load_ioengine(td);
1112 if (ops == td->io_ops && dlhandle == td->io_ops->dlhandle)
1115 if (dlhandle && dlhandle != td->io_ops->dlhandle)
1118 /* Unload the old engine. */
1122 td->io_ops = load_ioengine(td);
1126 if (td->io_ops->option_struct_size && td->io_ops->options) {
1128 * In cases where td->eo is set, clone it for a child thread.
1129 * This requires that the parent thread has the same ioengine,
1130 * but that requirement must be enforced by the code which
1131 * cloned the thread.
1133 void *origeo = td->eo;
1135 * Otherwise use the default thread options.
1137 if (!origeo && td != &def_thread && def_thread.eo &&
1138 def_thread.io_ops->options == td->io_ops->options)
1139 origeo = def_thread.eo;
1141 options_init(td->io_ops->options);
1142 td->eo = malloc(td->io_ops->option_struct_size);
1144 * Use the default thread as an option template if this uses the
1145 * same options structure and there are non-default options
1149 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1150 options_mem_dupe(td->io_ops->options, td->eo);
1152 memset(td->eo, 0, td->io_ops->option_struct_size);
1153 fill_default_options(td->eo, td->io_ops->options);
1155 *(struct thread_data **)td->eo = td;
1159 td->io_ops->flags |= FIO_RAWIO;
1161 td_set_ioengine_flags(td);
1165 log_err("fio: failed to load engine\n");
1170 static void init_flags(struct thread_data *td)
1172 struct thread_options *o = &td->o;
1175 if (o->verify_backlog)
1176 td->flags |= TD_F_VER_BACKLOG;
1177 if (o->trim_backlog)
1178 td->flags |= TD_F_TRIM_BACKLOG;
1179 if (o->read_iolog_file)
1180 td->flags |= TD_F_READ_IOLOG;
1181 if (o->refill_buffers)
1182 td->flags |= TD_F_REFILL_BUFFERS;
1184 * Always scramble buffers if asked to
1186 if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1187 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1189 * But also scramble buffers, unless we were explicitly asked
1192 if (o->scramble_buffers && !(o->zero_buffers &&
1193 fio_option_is_set(o, zero_buffers)))
1194 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1195 if (o->verify != VERIFY_NONE)
1196 td->flags |= TD_F_DO_VERIFY;
1198 if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1199 td->flags |= TD_F_NEED_LOCK;
1201 if (o->mem_type == MEM_CUDA_MALLOC)
1202 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1204 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1205 if (option_check_rate(td, i)) {
1206 td->flags |= TD_F_CHECK_RATE;
1212 static int setup_random_seeds(struct thread_data *td)
1217 if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1218 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1220 td_fill_rand_seeds(td);
1224 seed = td->o.rand_seed;
1225 for (i = 0; i < 4; i++)
1226 seed *= 0x9e370001UL;
1228 for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1229 td->rand_seeds[i] = seed * td->thread_number + i;
1230 seed *= 0x9e370001UL;
1233 td_fill_rand_seeds(td);
1244 static struct fpre_keyword {
1245 const char *keyword;
1248 } fpre_keywords[] = {
1249 { .keyword = "$jobname", .key = FPRE_JOBNAME, },
1250 { .keyword = "$jobnum", .key = FPRE_JOBNUM, },
1251 { .keyword = "$filenum", .key = FPRE_FILENUM, },
1252 { .keyword = NULL, },
1255 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1256 const char *jobname, int jobnum, int filenum)
1258 struct fpre_keyword *f;
1259 char copy[PATH_MAX];
1260 size_t dst_left = PATH_MAX - 1;
1262 if (!o->filename_format || !strlen(o->filename_format)) {
1263 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1267 for (f = &fpre_keywords[0]; f->keyword; f++)
1268 f->strlen = strlen(f->keyword);
1270 snprintf(buf, buf_size, "%s", o->filename_format);
1272 memset(copy, 0, sizeof(copy));
1273 for (f = &fpre_keywords[0]; f->keyword; f++) {
1275 size_t pre_len, post_start = 0;
1276 char *str, *dst = copy;
1278 str = strcasestr(buf, f->keyword);
1282 pre_len = str - buf;
1283 if (strlen(str) != f->strlen)
1284 post_start = pre_len + f->strlen;
1287 strncpy(dst, buf, pre_len);
1289 dst_left -= pre_len;
1293 case FPRE_JOBNAME: {
1296 ret = snprintf(dst, dst_left, "%s", jobname);
1299 else if (ret > dst_left) {
1300 log_err("fio: truncated filename\n");
1312 ret = snprintf(dst, dst_left, "%d", jobnum);
1315 else if (ret > dst_left) {
1316 log_err("fio: truncated filename\n");
1325 case FPRE_FILENUM: {
1328 ret = snprintf(dst, dst_left, "%d", filenum);
1331 else if (ret > dst_left) {
1332 log_err("fio: truncated filename\n");
1347 strncpy(dst, buf + post_start, dst_left);
1349 snprintf(buf, buf_size, "%s", copy);
1356 bool parse_dryrun(void)
1358 return dump_cmdline || parse_only;
1361 static void gen_log_name(char *name, size_t size, const char *logtype,
1362 const char *logname, unsigned int num,
1363 const char *suf, int per_job)
1366 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1368 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1371 static int check_waitees(char *waitee)
1373 struct thread_data *td;
1376 for_each_td(td, i) {
1377 if (td->subjob_number)
1380 ret += !strcmp(td->o.name, waitee);
1386 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1393 if (!strcmp(jobname, o->wait_for)) {
1394 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1395 jobname, o->wait_for);
1399 if (!(nw = check_waitees(o->wait_for))) {
1400 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1405 log_err("%s: multiple waitees %s found,\n"
1406 "please avoid duplicates when using wait_for option.\n",
1407 jobname, o->wait_for);
1415 * Treat an empty log file name the same as a one not given
1417 static const char *make_log_name(const char *logname, const char *jobname)
1419 if (logname && strcmp(logname, ""))
1426 * Adds a job to the list of things todo. Sanitizes the various options
1427 * to make sure we don't have conflicts, and initializes various
1430 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1431 int recursed, int client_type)
1434 char fname[PATH_MAX + 1];
1435 int numjobs, file_alloced;
1436 struct thread_options *o = &td->o;
1437 char logname[PATH_MAX + 32];
1440 * the def_thread is just for options, it's not a real job
1442 if (td == &def_thread)
1448 * if we are just dumping the output command line, don't add the job
1450 if (parse_dryrun()) {
1455 td->client_type = client_type;
1457 if (profile_td_init(td))
1460 if (ioengine_load(td))
1464 if (!o->filename && !td->files_index && !o->read_iolog_file) {
1467 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1468 add_file(td, jobname, job_add_num, 0);
1470 for (i = 0; i < o->nr_files; i++)
1471 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1475 if (setup_random_seeds(td)) {
1476 td_verror(td, errno, "setup_random_seeds");
1480 if (fixup_options(td))
1484 * Belongs to fixup_options, but o->name is not necessarily set as yet
1486 if (!wait_for_ok(jobname, o))
1492 * IO engines only need this for option callbacks, and the address may
1493 * change in subprocesses.
1496 *(struct thread_data **)td->eo = NULL;
1498 if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1501 for_each_file(td, f, i)
1502 f->real_file_size = -1ULL;
1505 td->sem = fio_sem_init(FIO_SEM_LOCKED);
1507 td->ts.clat_percentiles = o->clat_percentiles;
1508 td->ts.lat_percentiles = o->lat_percentiles;
1509 td->ts.slat_percentiles = o->slat_percentiles;
1510 td->ts.percentile_precision = o->percentile_precision;
1511 memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1512 td->ts.sig_figs = o->sig_figs;
1514 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1515 td->ts.clat_stat[i].min_val = ULONG_MAX;
1516 td->ts.slat_stat[i].min_val = ULONG_MAX;
1517 td->ts.lat_stat[i].min_val = ULONG_MAX;
1518 td->ts.bw_stat[i].min_val = ULONG_MAX;
1519 td->ts.iops_stat[i].min_val = ULONG_MAX;
1520 td->ts.clat_high_prio_stat[i].min_val = ULONG_MAX;
1521 td->ts.clat_low_prio_stat[i].min_val = ULONG_MAX;
1523 td->ts.sync_stat.min_val = ULONG_MAX;
1524 td->ddir_seq_nr = o->ddir_seq_nr;
1526 if ((o->stonewall || o->new_group) && prev_group_jobs) {
1527 prev_group_jobs = 0;
1529 if (groupid == INT_MAX) {
1530 log_err("fio: too many groups defined\n");
1535 td->groupid = groupid;
1541 if (o->write_lat_log) {
1542 struct log_params p = {
1544 .avg_msec = o->log_avg_msec,
1545 .hist_msec = o->log_hist_msec,
1546 .hist_coarseness = o->log_hist_coarseness,
1547 .log_type = IO_LOG_TYPE_LAT,
1548 .log_offset = o->log_offset,
1549 .log_gz = o->log_gz,
1550 .log_gz_store = o->log_gz_store,
1552 const char *pre = make_log_name(o->lat_log_file, o->name);
1560 gen_log_name(logname, sizeof(logname), "lat", pre,
1561 td->thread_number, suf, o->per_job_logs);
1562 setup_log(&td->lat_log, &p, logname);
1564 gen_log_name(logname, sizeof(logname), "slat", pre,
1565 td->thread_number, suf, o->per_job_logs);
1566 setup_log(&td->slat_log, &p, logname);
1568 gen_log_name(logname, sizeof(logname), "clat", pre,
1569 td->thread_number, suf, o->per_job_logs);
1570 setup_log(&td->clat_log, &p, logname);
1574 if (o->write_hist_log) {
1575 struct log_params p = {
1577 .avg_msec = o->log_avg_msec,
1578 .hist_msec = o->log_hist_msec,
1579 .hist_coarseness = o->log_hist_coarseness,
1580 .log_type = IO_LOG_TYPE_HIST,
1581 .log_offset = o->log_offset,
1582 .log_gz = o->log_gz,
1583 .log_gz_store = o->log_gz_store,
1585 const char *pre = make_log_name(o->hist_log_file, o->name);
1589 if (td->client_type) {
1590 log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1600 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1601 td->thread_number, suf, o->per_job_logs);
1602 setup_log(&td->clat_hist_log, &p, logname);
1605 if (o->write_bw_log) {
1606 struct log_params p = {
1608 .avg_msec = o->log_avg_msec,
1609 .hist_msec = o->log_hist_msec,
1610 .hist_coarseness = o->log_hist_coarseness,
1611 .log_type = IO_LOG_TYPE_BW,
1612 .log_offset = o->log_offset,
1613 .log_gz = o->log_gz,
1614 .log_gz_store = o->log_gz_store,
1616 const char *pre = make_log_name(o->bw_log_file, o->name);
1619 if (fio_option_is_set(o, bw_avg_time))
1620 p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1622 o->bw_avg_time = p.avg_msec;
1624 p.hist_msec = o->log_hist_msec;
1625 p.hist_coarseness = o->log_hist_coarseness;
1632 gen_log_name(logname, sizeof(logname), "bw", pre,
1633 td->thread_number, suf, o->per_job_logs);
1634 setup_log(&td->bw_log, &p, logname);
1636 if (o->write_iops_log) {
1637 struct log_params p = {
1639 .avg_msec = o->log_avg_msec,
1640 .hist_msec = o->log_hist_msec,
1641 .hist_coarseness = o->log_hist_coarseness,
1642 .log_type = IO_LOG_TYPE_IOPS,
1643 .log_offset = o->log_offset,
1644 .log_gz = o->log_gz,
1645 .log_gz_store = o->log_gz_store,
1647 const char *pre = make_log_name(o->iops_log_file, o->name);
1650 if (fio_option_is_set(o, iops_avg_time))
1651 p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1653 o->iops_avg_time = p.avg_msec;
1655 p.hist_msec = o->log_hist_msec;
1656 p.hist_coarseness = o->log_hist_coarseness;
1663 gen_log_name(logname, sizeof(logname), "iops", pre,
1664 td->thread_number, suf, o->per_job_logs);
1665 setup_log(&td->iops_log, &p, logname);
1669 o->name = strdup(jobname);
1671 if (output_format & FIO_OUTPUT_NORMAL) {
1673 if (is_backend && !recursed)
1674 fio_server_send_add_job(td);
1676 if (!td_ioengine_flagged(td, FIO_NOIO)) {
1677 char *c1, *c2, *c3, *c4;
1678 char *c5 = NULL, *c6 = NULL;
1679 int i2p = is_power_of_2(o->kb_base);
1680 struct buf_output out;
1682 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1683 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1684 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1685 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1687 if (!o->bs_is_seq_rand) {
1688 c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1689 c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1692 buf_output_init(&out);
1693 __log_buf(&out, "%s: (g=%d): rw=%s, ", td->o.name,
1695 ddir_str(o->td_ddir));
1697 if (o->bs_is_seq_rand)
1698 __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1701 __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1702 c1, c2, c3, c4, c5, c6);
1704 __log_buf(&out, "ioengine=%s, iodepth=%u\n",
1705 td->io_ops->name, o->iodepth);
1706 log_info_buf(out.buf, out.buflen);
1707 buf_output_free(&out);
1716 } else if (job_add_num == 1)
1720 if (td_steadystate_init(td))
1723 if (o->merge_blktrace_file && !merge_blktrace_iologs(td))
1726 if (merge_blktrace_only) {
1732 * recurse add identical jobs, clear numjobs and stonewall options
1733 * as they don't apply to sub-jobs
1735 numjobs = o->numjobs;
1737 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1742 td_new->o.numjobs = 1;
1743 td_new->o.stonewall = 0;
1744 td_new->o.new_group = 0;
1745 td_new->subjob_number = numjobs;
1746 td_new->o.ss_dur = o->ss_dur * 1000000l;
1747 td_new->o.ss_limit = o->ss_limit;
1750 if (td_new->files) {
1752 for_each_file(td_new, f, i)
1754 free(td_new->files);
1755 td_new->files = NULL;
1757 td_new->files_index = 0;
1758 td_new->files_size = 0;
1759 if (td_new->o.filename) {
1760 free(td_new->o.filename);
1761 td_new->o.filename = NULL;
1765 if (add_job(td_new, jobname, numjobs, 1, client_type))
1776 * Parse as if 'o' was a command line
1778 void add_job_opts(const char **o, int client_type)
1780 struct thread_data *td, *td_parent;
1781 int i, in_global = 1;
1785 td_parent = td = NULL;
1787 if (!strncmp(o[i], "name", 4)) {
1790 add_job(td, jobname, 0, 0, client_type);
1792 sprintf(jobname, "%s", o[i] + 5);
1794 if (in_global && !td_parent)
1795 td_parent = get_new_job(true, &def_thread, false, jobname);
1796 else if (!in_global && !td) {
1798 td_parent = &def_thread;
1799 td = get_new_job(false, td_parent, false, jobname);
1802 fio_options_parse(td_parent, (char **) &o[i], 1);
1804 fio_options_parse(td, (char **) &o[i], 1);
1809 add_job(td, jobname, 0, 0, client_type);
1812 static int skip_this_section(const char *name)
1816 if (!nr_job_sections)
1818 if (!strncmp(name, "global", 6))
1821 for (i = 0; i < nr_job_sections; i++)
1822 if (!strcmp(job_sections[i], name))
1828 static int is_empty_or_comment(char *line)
1832 for (i = 0; i < strlen(line); i++) {
1837 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1845 * This is our [ini] type file parser.
1847 static int __parse_jobs_ini(struct thread_data *td,
1848 char *file, int is_buf, int stonewall_flag, int type,
1849 int nested, char *name, char ***popts, int *aopts, int *nopts)
1851 bool global = false;
1852 bool stdin_occupied = false;
1856 int ret = 0, stonewall;
1859 int inside_skip = 0;
1861 int i, alloc_opts, num_opts;
1863 dprint(FD_PARSE, "Parsing ini file %s\n", file);
1864 assert(td || !nested);
1869 if (!strcmp(file, "-")) {
1871 stdin_occupied = true;
1873 f = fopen(file, "r");
1878 log_err("fio: unable to open '%s' job file\n", file);
1880 td_verror(td, __err, "job file open");
1885 string = malloc(OPT_LEN_MAX);
1888 * it's really 256 + small bit, 280 should suffice
1892 memset(name, 0, 280);
1896 if (nested && popts) {
1898 alloc_opts = *aopts;
1904 opts = malloc(sizeof(char *) * alloc_opts);
1908 stonewall = stonewall_flag;
1911 * if skip_fgets is set, we already have loaded a line we
1916 p = strsep(&file, "\n");
1918 p = fgets(string, OPT_LEN_MAX, f);
1924 strip_blank_front(&p);
1927 dprint(FD_PARSE, "%s\n", p);
1928 if (is_empty_or_comment(p))
1932 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1936 log_err("fio: option <%s> outside of "
1937 "[] job section\n", p);
1942 name[strlen(name) - 1] = '\0';
1944 if (skip_this_section(name)) {
1950 dprint(FD_PARSE, "Parsing section [%s]\n", name);
1952 global = !strncmp(name, "global", 6);
1958 log_info("--name=%s ", name);
1962 td = get_new_job(global, &def_thread, false, name);
1969 * Separate multiple job files by a stonewall
1971 if (!global && stonewall) {
1972 td->o.stonewall = stonewall;
1977 memset(opts, 0, alloc_opts * sizeof(char *));
1985 p = strsep(&file, "\n");
1987 p = fgets(string, OPT_LEN_MAX, f);
1990 dprint(FD_PARSE, "%s", p);
1995 if (is_empty_or_comment(p))
1998 strip_blank_front(&p);
2001 * new section, break out and make sure we don't
2002 * fgets() a new line at the top.
2006 log_err("No new sections in included files\n");
2017 if (!strncmp(p, "include", strlen("include"))) {
2018 char *filename = p + strlen("include") + 1,
2019 *ts, *full_fn = NULL;
2022 * Allow for the include filename
2023 * specification to be relative.
2025 if (access(filename, F_OK) &&
2026 (ts = strrchr(file, '/'))) {
2027 if (asprintf(&full_fn, "%.*s%s",
2028 (int)(ts - file + 1), file,
2036 ret = __parse_jobs_ini(td, filename, is_buf,
2037 stonewall_flag, type, 1,
2039 &alloc_opts, &num_opts);
2042 log_err("Error %d while parsing "
2043 "include file %s\n",
2056 if (num_opts == alloc_opts) {
2058 opts = realloc(opts,
2059 alloc_opts * sizeof(char *));
2062 opts[num_opts] = strdup(p);
2068 *aopts = alloc_opts;
2073 ret = fio_options_parse(td, opts, num_opts);
2075 if (!ret && td->o.read_iolog_file != NULL) {
2076 char *fname = get_name_by_idx(td->o.read_iolog_file,
2078 if (!strcmp(fname, "-")) {
2079 if (stdin_occupied) {
2080 log_err("fio: only one user (read_iolog_file/job "
2081 "file) of stdin is permitted at once but "
2082 "more than one was found.\n");
2085 stdin_occupied = true;
2092 ret = add_job(td, name, 0, 0, type);
2094 log_err("fio: job %s dropped\n", name);
2098 for (i = 0; i < num_opts; i++)
2107 while (i < nr_job_sections) {
2108 free(job_sections[i]);
2117 if (!is_buf && f != stdin)
2122 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2124 return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2125 0, NULL, NULL, NULL, NULL);
2128 static int fill_def_thread(void)
2130 memset(&def_thread, 0, sizeof(def_thread));
2131 INIT_FLIST_HEAD(&def_thread.opt_list);
2133 fio_getaffinity(getpid(), &def_thread.o.cpumask);
2134 def_thread.o.error_dump = 1;
2137 * fill default options
2139 fio_fill_default_options(&def_thread);
2143 static void show_debug_categories(void)
2145 #ifdef FIO_INC_DEBUG
2146 const struct debug_level *dl = &debug_levels[0];
2147 int curlen, first = 1;
2151 int has_next = (dl + 1)->name != NULL;
2153 if (first || curlen + strlen(dl->name) >= 80) {
2158 curlen += printf("\t\t\t%s", dl->name);
2159 curlen += 3 * (8 - 1);
2161 curlen += printf(",");
2163 curlen += printf("%s", dl->name);
2165 curlen += printf(",");
2175 * Following options aren't printed by usage().
2176 * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2177 * --latency-log - Deprecated option.
2179 static void usage(const char *name)
2181 printf("%s\n", fio_version_string);
2182 printf("%s [options] [job options] <job file(s)>\n", name);
2183 printf(" --debug=options\tEnable debug logging. May be one/more of:\n");
2184 show_debug_categories();
2185 printf(" --parse-only\t\tParse options only, don't start any IO\n");
2186 printf(" --merge-blktrace-only\tMerge blktraces only, don't start any IO\n");
2187 printf(" --output\t\tWrite output to file\n");
2188 printf(" --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2189 printf(" --minimal\t\tMinimal (terse) output\n");
2190 printf(" --output-format=type\tOutput format (terse,json,json+,normal)\n");
2191 printf(" --terse-version=type\tSet terse version output format"
2192 " (default 3, or 2 or 4)\n");
2193 printf(" --version\t\tPrint version info and exit\n");
2194 printf(" --help\t\tPrint this page\n");
2195 printf(" --cpuclock-test\tPerform test/validation of CPU clock\n");
2196 printf(" --crctest=[type]\tTest speed of checksum functions\n");
2197 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2199 printf(" --enghelp=engine\tPrint ioengine help, or list"
2200 " available ioengines\n");
2201 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
2203 printf(" --showcmd\t\tTurn a job file into command line options\n");
2204 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
2205 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
2206 printf(" --eta-newline=t\tForce a new line for every 't'");
2207 printf(" period passed\n");
2208 printf(" --status-interval=t\tForce full status dump every");
2209 printf(" 't' period passed\n");
2210 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
2212 printf(" --section=name\tOnly run specified section in job file,"
2213 " multiple sections can be specified\n");
2214 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
2216 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
2217 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2218 printf(" --server=args\t\tStart a backend fio server\n");
2219 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
2220 printf(" --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2221 printf(" --remote-config=file\tTell fio server to load this local job file\n");
2222 printf(" --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2223 "\t\t\t(option=system,percpu) or run unit work\n"
2224 "\t\t\tcalibration only (option=calibrate)\n");
2226 printf(" --inflate-log=log\tInflate and output compressed log\n");
2228 printf(" --trigger-file=file\tExecute trigger cmd when file exists\n");
2229 printf(" --trigger-timeout=t\tExecute trigger at this time\n");
2230 printf(" --trigger=cmd\t\tSet this command as local trigger\n");
2231 printf(" --trigger-remote=cmd\tSet this command as remote trigger\n");
2232 printf(" --aux-path=path\tUse this path for fio state generated files\n");
2233 printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2236 #ifdef FIO_INC_DEBUG
2237 const struct debug_level debug_levels[] = {
2238 { .name = "process",
2239 .help = "Process creation/exit logging",
2240 .shift = FD_PROCESS,
2243 .help = "File related action logging",
2247 .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2251 .help = "Memory allocation/freeing logging",
2254 { .name = "blktrace",
2255 .help = "blktrace action logging",
2256 .shift = FD_BLKTRACE,
2259 .help = "IO verification action logging",
2263 .help = "Random generation logging",
2267 .help = "Parser logging",
2270 { .name = "diskutil",
2271 .help = "Disk utility logging actions",
2272 .shift = FD_DISKUTIL,
2275 .help = "Logging related to creating/destroying jobs",
2279 .help = "Mutex logging",
2282 { .name = "profile",
2283 .help = "Logging related to profiles",
2284 .shift = FD_PROFILE,
2287 .help = "Logging related to time keeping functions",
2291 .help = "Network logging",
2295 .help = "Rate logging",
2298 { .name = "compress",
2299 .help = "Log compression logging",
2300 .shift = FD_COMPRESS,
2302 { .name = "steadystate",
2303 .help = "Steady state detection logging",
2304 .shift = FD_STEADYSTATE,
2306 { .name = "helperthread",
2307 .help = "Helper thread logging",
2308 .shift = FD_HELPERTHREAD,
2311 .help = "Zoned Block Device logging",
2317 static int set_debug(const char *string)
2319 const struct debug_level *dl;
2320 char *p = (char *) string;
2327 if (!strcmp(string, "?") || !strcmp(string, "help")) {
2328 log_info("fio: dumping debug options:");
2329 for (i = 0; debug_levels[i].name; i++) {
2330 dl = &debug_levels[i];
2331 log_info("%s,", dl->name);
2337 while ((opt = strsep(&p, ",")) != NULL) {
2340 if (!strncmp(opt, "all", 3)) {
2341 log_info("fio: set all debug options\n");
2346 for (i = 0; debug_levels[i].name; i++) {
2347 dl = &debug_levels[i];
2348 found = !strncmp(opt, dl->name, strlen(dl->name));
2352 if (dl->shift == FD_JOB) {
2353 opt = strchr(opt, ':');
2355 log_err("fio: missing job number\n");
2359 fio_debug_jobno = atoi(opt);
2360 log_info("fio: set debug jobno %d\n",
2363 log_info("fio: set debug option %s\n", opt);
2364 fio_debug |= (1UL << dl->shift);
2370 log_err("fio: debug mask %s not found\n", opt);
2375 static int set_debug(const char *string)
2377 log_err("fio: debug tracing not included in build\n");
2382 static void fio_options_fill_optstring(void)
2384 char *ostr = cmd_optstr;
2388 while (l_opts[i].name) {
2389 ostr[c++] = l_opts[i].val;
2390 if (l_opts[i].has_arg == required_argument)
2392 else if (l_opts[i].has_arg == optional_argument) {
2401 static int client_flag_set(char c)
2406 while (l_opts[i].name) {
2407 int val = l_opts[i].val;
2409 if (c == (val & 0xff))
2410 return (val & FIO_CLIENT_FLAG);
2418 static void parse_cmd_client(void *client, char *opt)
2420 fio_client_add_cmd_option(client, opt);
2423 static void show_closest_option(const char *name)
2425 int best_option, best_distance;
2428 while (*name == '-')
2432 best_distance = INT_MAX;
2434 while (l_opts[i].name) {
2435 distance = string_distance(name, l_opts[i].name);
2436 if (distance < best_distance) {
2437 best_distance = distance;
2443 if (best_option != -1 && string_distance_ok(name, best_distance))
2444 log_err("Did you mean %s?\n", l_opts[best_option].name);
2447 static int parse_output_format(const char *optarg)
2449 char *p, *orig, *opt;
2452 p = orig = strdup(optarg);
2456 while ((opt = strsep(&p, ",")) != NULL) {
2457 if (!strcmp(opt, "minimal") ||
2458 !strcmp(opt, "terse") ||
2459 !strcmp(opt, "csv"))
2460 output_format |= FIO_OUTPUT_TERSE;
2461 else if (!strcmp(opt, "json"))
2462 output_format |= FIO_OUTPUT_JSON;
2463 else if (!strcmp(opt, "json+"))
2464 output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2465 else if (!strcmp(opt, "normal"))
2466 output_format |= FIO_OUTPUT_NORMAL;
2468 log_err("fio: invalid output format %s\n", opt);
2478 int parse_cmd_line(int argc, char *argv[], int client_type)
2480 struct thread_data *td = NULL;
2481 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2482 char *ostr = cmd_optstr;
2483 char *pid_file = NULL;
2484 void *cur_client = NULL;
2485 bool backend = false;
2488 * Reset optind handling, since we may call this multiple times
2493 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2494 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2495 parse_cmd_client(cur_client, argv[optind - 1]);
2496 c &= ~FIO_CLIENT_FLAG;
2501 smalloc_pool_size = atoi(optarg);
2502 smalloc_pool_size <<= 10;
2506 log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2511 write_bw_log = true;
2516 if (f_out && f_out != stdout)
2519 tmp = fopen(optarg, "w+");
2521 log_err("fio: output file open error: %s\n", strerror(errno));
2526 f_err = f_out = tmp;
2530 output_format = FIO_OUTPUT_TERSE;
2533 if (parse_output_format(optarg)) {
2534 log_err("fio: failed parsing output-format\n");
2541 output_format |= FIO_OUTPUT_TERSE;
2553 fio_show_option_help(optarg);
2560 exit_val = fio_show_ioengine_help(optarg);
2566 dump_cmdline = true;
2574 log_info("%s\n", fio_version_string);
2579 terse_version = atoi(optarg);
2580 if (!(terse_version >= 2 && terse_version <= 5)) {
2581 log_err("fio: bad terse version format\n");
2587 if (!strcmp("always", optarg))
2588 eta_print = FIO_ETA_ALWAYS;
2589 else if (!strcmp("never", optarg))
2590 eta_print = FIO_ETA_NEVER;
2595 if (check_str_time(optarg, &t, 1)) {
2596 log_err("fio: failed parsing eta time %s\n", optarg);
2601 eta_new_line = t / 1000;
2602 if (!eta_new_line) {
2603 log_err("fio: eta new line time too short\n");
2612 if (check_str_time(optarg, &t, 1)) {
2613 log_err("fio: failed parsing eta interval %s\n", optarg);
2618 eta_interval_msec = t / 1000;
2619 if (eta_interval_msec < DISK_UTIL_MSEC) {
2620 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2627 if (set_debug(optarg))
2637 if (!strcmp(optarg, "global")) {
2638 log_err("fio: can't use global as only "
2644 new_size = (nr_job_sections + 1) * sizeof(char *);
2645 job_sections = realloc(job_sections, new_size);
2646 job_sections[nr_job_sections] = strdup(optarg);
2652 exit_val = iolog_file_inflate(optarg);
2661 exec_profile = strdup(optarg);
2663 case FIO_GETOPT_JOB: {
2664 const char *opt = l_opts[lidx].name;
2667 if (!strncmp(opt, "name", 4) && td) {
2668 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2675 int is_section = !strncmp(opt, "name", 4);
2678 if (!is_section || !strncmp(val, "global", 6))
2681 if (is_section && skip_this_section(val))
2684 td = get_new_job(global, &def_thread, true, NULL);
2685 if (!td || ioengine_load(td)) {
2694 fio_options_set_ioengine_opts(l_opts, td);
2697 if ((!val || !strlen(val)) &&
2698 l_opts[lidx].has_arg == required_argument) {
2699 log_err("fio: option %s requires an argument\n", opt);
2702 ret = fio_cmd_option_parse(td, opt, val);
2713 if (!ret && !strcmp(opt, "ioengine")) {
2714 if (ioengine_load(td)) {
2721 fio_options_set_ioengine_opts(l_opts, td);
2725 case FIO_GETOPT_IOENGINE: {
2726 const char *opt = l_opts[lidx].name;
2732 ret = fio_cmd_ioengine_option_parse(td, opt, val);
2739 /* we don't track/need this anymore, ignore it */
2743 #ifndef CONFIG_NO_SHM
2745 log_err("fio: can't be both client and server\n");
2751 fio_server_set_arg(optarg);
2755 log_err("fio: client/server requires SHM support\n");
2763 pid_file = strdup(optarg);
2766 if ((ret = fio_idle_prof_parse_opt(optarg))) {
2767 /* exit on error and calibration only */
2777 log_err("fio: can't be both client and server\n");
2782 /* if --client parameter contains a pathname */
2783 if (0 == access(optarg, R_OK)) {
2784 /* file contains a list of host addrs or names */
2785 char hostaddr[PATH_MAX] = {0};
2787 FILE * hostf = fopen(optarg, "r");
2789 log_err("fio: could not open client list file %s for read\n", optarg);
2794 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2796 * read at most PATH_MAX-1 chars from each
2797 * record in this file
2799 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2800 /* expect EVERY host in file to be valid */
2801 if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2802 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2809 break; /* no possibility of job file for "this client only" */
2811 if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2812 log_err("fio: failed adding client %s\n", optarg);
2818 * If the next argument exists and isn't an option,
2819 * assume it's a job file for this client only.
2821 while (optind < argc) {
2822 if (!strncmp(argv[optind], "--", 2) ||
2823 !strncmp(argv[optind], "-", 1))
2826 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2833 if (fio_client_add_ini_file(cur_client, optarg, true)) {
2841 exit_val = fio_monotonic_clocktest(1);
2846 exit_val = fio_crctest(optarg);
2851 exit_val = fio_memcpy_test(optarg);
2856 if (check_str_time(optarg, &val, 1)) {
2857 log_err("fio: failed parsing time %s\n", optarg);
2863 log_err("fio: status interval too small\n");
2867 status_interval = val / 1000;
2873 trigger_file = strdup(optarg);
2878 trigger_cmd = strdup(optarg);
2881 if (trigger_remote_cmd)
2882 free(trigger_remote_cmd);
2883 trigger_remote_cmd = strdup(optarg);
2888 aux_path = strdup(optarg);
2891 if (check_str_time(optarg, &trigger_timeout, 1)) {
2892 log_err("fio: failed parsing time %s\n", optarg);
2896 trigger_timeout /= 1000000;
2901 merge_blktrace_only = true;
2904 log_err("%s: unrecognized option '%s'\n", argv[0],
2906 show_closest_option(argv[optind - 1]);
2917 if (do_exit && !(is_backend || nr_clients))
2920 if (nr_clients && fio_clients_connect())
2923 if (is_backend && backend)
2924 return fio_start_server(pid_file);
2930 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2936 while (!ret && optind < argc) {
2938 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2939 ini_file[ini_idx - 1] = strdup(argv[optind]);
2947 int fio_init_options(void)
2952 fio_options_fill_optstring();
2953 fio_options_dup_and_init(l_opts);
2957 if (fill_def_thread())
2963 extern int fio_check_options(struct thread_options *);
2965 int parse_options(int argc, char *argv[])
2967 const int type = FIO_CLIENT_TYPE_CLI;
2970 if (fio_init_options())
2972 if (fio_test_cconv(&def_thread.o))
2973 log_err("fio: failed internal cconv test\n");
2975 job_files = parse_cmd_line(argc, argv, type);
2977 if (job_files > 0) {
2978 for (i = 0; i < job_files; i++) {
2979 if (i && fill_def_thread())
2982 if (fio_clients_send_ini(ini_file[i]))
2985 } else if (!is_backend) {
2986 if (parse_jobs_ini(ini_file[i], 0, i, type))
2991 } else if (nr_clients) {
2992 if (fill_def_thread())
2994 if (fio_clients_send_ini(NULL))
2999 fio_options_free(&def_thread);
3000 filesetup_mem_free();
3002 if (!thread_number) {
3007 if (is_backend || nr_clients)
3012 log_err("No job(s) defined\n\n");
3017 if (output_format & FIO_OUTPUT_NORMAL)
3018 log_info("%s\n", fio_version_string);
3023 void options_default_fill(struct thread_options *o)
3025 memcpy(o, &def_thread.o, sizeof(*o));
3028 struct thread_data *get_global_options(void)