2 * This file contains job initialization and setup functions.
13 #include <sys/types.h>
24 #include "lib/getopt.h"
26 #include "fio_version.h"
29 const char fio_version_string[] = __fio_stringify(FIO_MAJOR) "." \
30 __fio_stringify(FIO_MINOR) "." \
31 __fio_stringify(FIO_PATCH);
33 const char fio_version_string[] = __fio_stringify(FIO_MAJOR) "." \
34 __fio_stringify(FIO_MINOR);
37 #define FIO_RANDSEED (0xb1899bedUL)
39 static char **ini_file;
40 static int max_jobs = FIO_MAX_JOBS;
41 static int dump_cmdline;
42 static int def_timeout;
44 static struct thread_data def_thread;
45 struct thread_data *threads = NULL;
47 int exitall_on_terminate = 0;
50 unsigned long long mlock_size = 0;
53 char **job_sections = NULL;
54 int nr_job_sections = 0;
55 char *exec_profile = NULL;
56 int warnings_fatal = 0;
57 int terse_version = 3;
65 static int write_lat_log;
67 static int prev_group_jobs;
69 unsigned long fio_debug = 0;
70 unsigned int fio_debug_jobno = -1;
71 unsigned int *fio_debug_jobp = NULL;
73 static char cmd_optstr[256];
76 const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
94 #define FIO_CLIENT_FLAG (1 << 16)
97 * Command line options. These will contain the above, plus a few
98 * extra that only pertain to fio itself and not jobs.
100 static struct option l_opts[FIO_NR_OPTIONS] = {
102 .name = (char *) "output",
103 .has_arg = required_argument,
104 .val = 'o' | FIO_CLIENT_FLAG,
107 .name = (char *) "timeout",
108 .has_arg = required_argument,
109 .val = 't' | FIO_CLIENT_FLAG,
112 .name = (char *) "latency-log",
113 .has_arg = required_argument,
114 .val = 'l' | FIO_CLIENT_FLAG,
117 .name = (char *) "bandwidth-log",
118 .has_arg = required_argument,
119 .val = 'b' | FIO_CLIENT_FLAG,
122 .name = (char *) "minimal",
123 .has_arg = optional_argument,
124 .val = 'm' | FIO_CLIENT_FLAG,
127 .name = (char *) "version",
128 .has_arg = no_argument,
129 .val = 'v' | FIO_CLIENT_FLAG,
132 .name = (char *) "help",
133 .has_arg = no_argument,
134 .val = 'h' | FIO_CLIENT_FLAG,
137 .name = (char *) "cmdhelp",
138 .has_arg = optional_argument,
139 .val = 'c' | FIO_CLIENT_FLAG,
142 .name = (char *) "enghelp",
143 .has_arg = optional_argument,
144 .val = 'i' | FIO_CLIENT_FLAG,
147 .name = (char *) "showcmd",
148 .has_arg = no_argument,
149 .val = 's' | FIO_CLIENT_FLAG,
152 .name = (char *) "readonly",
153 .has_arg = no_argument,
154 .val = 'r' | FIO_CLIENT_FLAG,
157 .name = (char *) "eta",
158 .has_arg = required_argument,
159 .val = 'e' | FIO_CLIENT_FLAG,
162 .name = (char *) "debug",
163 .has_arg = required_argument,
164 .val = 'd' | FIO_CLIENT_FLAG,
167 .name = (char *) "section",
168 .has_arg = required_argument,
169 .val = 'x' | FIO_CLIENT_FLAG,
172 .name = (char *) "alloc-size",
173 .has_arg = required_argument,
174 .val = 'a' | FIO_CLIENT_FLAG,
177 .name = (char *) "profile",
178 .has_arg = required_argument,
179 .val = 'p' | FIO_CLIENT_FLAG,
182 .name = (char *) "warnings-fatal",
183 .has_arg = no_argument,
184 .val = 'w' | FIO_CLIENT_FLAG,
187 .name = (char *) "max-jobs",
188 .has_arg = required_argument,
189 .val = 'j' | FIO_CLIENT_FLAG,
192 .name = (char *) "terse-version",
193 .has_arg = required_argument,
194 .val = 'V' | FIO_CLIENT_FLAG,
197 .name = (char *) "server",
198 .has_arg = optional_argument,
201 { .name = (char *) "daemonize",
202 .has_arg = required_argument,
206 .name = (char *) "client",
207 .has_arg = required_argument,
215 static void free_shm(void)
217 struct shmid_ds sbuf;
224 fio_debug_jobp = NULL;
226 shmctl(shm_id, IPC_RMID, &sbuf);
233 * The thread area is shared between the main process and the job
234 * threads/processes. So setup a shared memory segment that will hold
235 * all the job info. We use the end of the region for keeping track of
236 * open files across jobs, for file sharing.
238 static int setup_thread_area(void)
246 * 1024 is too much on some machines, scale max_jobs if
247 * we get a failure that looks like too large a shm segment
250 size_t size = max_jobs * sizeof(struct thread_data);
252 size += file_hash_size;
253 size += sizeof(unsigned int);
255 shm_id = shmget(0, size, IPC_CREAT | 0600);
258 if (errno != EINVAL) {
269 threads = shmat(shm_id, NULL, 0);
270 if (threads == (void *) -1) {
275 memset(threads, 0, max_jobs * sizeof(struct thread_data));
276 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
277 fio_debug_jobp = (void *) hash + file_hash_size;
278 *fio_debug_jobp = -1;
279 file_hash_init(hash);
284 * Return a free job structure.
286 static struct thread_data *get_new_job(int global, struct thread_data *parent,
289 struct thread_data *td;
293 if (setup_thread_area()) {
294 log_err("error: failed to setup shm segment\n");
297 if (thread_number >= max_jobs) {
298 log_err("error: maximum number of jobs (%d) reached.\n",
303 td = &threads[thread_number++];
310 td->o.uid = td->o.gid = -1U;
312 dup_files(td, parent);
313 fio_options_mem_dupe(td);
315 profile_add_hooks(td);
317 td->thread_number = thread_number;
321 static void put_job(struct thread_data *td)
323 if (td == &def_thread)
329 log_info("fio: %s\n", td->verror);
331 fio_options_free(td);
335 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
339 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
341 unsigned int bs = td->o.min_bs[ddir];
343 assert(ddir_rw(ddir));
345 if (td->o.rate[ddir])
346 td->rate_bps[ddir] = td->o.rate[ddir];
348 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
350 if (!td->rate_bps[ddir]) {
351 log_err("rate lower than supported\n");
355 td->rate_pending_usleep[ddir] = 0;
359 static int setup_rate(struct thread_data *td)
363 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
364 ret = __setup_rate(td, DDIR_READ);
365 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
366 ret |= __setup_rate(td, DDIR_WRITE);
371 static int fixed_block_size(struct thread_options *o)
373 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
374 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
375 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
379 * Lazy way of fixing up options that depend on each other. We could also
380 * define option callback handlers, but this is easier.
382 static int fixup_options(struct thread_data *td)
384 struct thread_options *o = &td->o;
387 #ifndef FIO_HAVE_PSHARED_MUTEX
388 if (!o->use_thread) {
389 log_info("fio: this platform does not support process shared"
390 " mutexes, forcing use of threads. Use the 'thread'"
391 " option to get rid of this warning.\n");
393 ret = warnings_fatal;
397 if (o->write_iolog_file && o->read_iolog_file) {
398 log_err("fio: read iolog overrides write_iolog\n");
399 free(o->write_iolog_file);
400 o->write_iolog_file = NULL;
401 ret = warnings_fatal;
405 * only really works for sequential io for now, and with 1 file
407 if (o->zone_size && td_random(td) && o->open_files == 1)
411 * Reads can do overwrites, we always need to pre-create the file
413 if (td_read(td) || td_rw(td))
416 if (!o->min_bs[DDIR_READ])
417 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
418 if (!o->max_bs[DDIR_READ])
419 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
420 if (!o->min_bs[DDIR_WRITE])
421 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
422 if (!o->max_bs[DDIR_WRITE])
423 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
425 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
428 * For random IO, allow blockalign offset other than min_bs.
430 if (!o->ba[DDIR_READ] || !td_random(td))
431 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
432 if (!o->ba[DDIR_WRITE] || !td_random(td))
433 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
435 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
436 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
438 log_err("fio: Any use of blockalign= turns off randommap\n");
440 ret = warnings_fatal;
443 if (!o->file_size_high)
444 o->file_size_high = o->file_size_low;
446 if (o->norandommap && o->verify != VERIFY_NONE
447 && !fixed_block_size(o)) {
448 log_err("fio: norandommap given for variable block sizes, "
449 "verify disabled\n");
450 o->verify = VERIFY_NONE;
451 ret = warnings_fatal;
453 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
454 log_err("fio: bs_unaligned may not work with raw io\n");
457 * thinktime_spin must be less than thinktime
459 if (o->thinktime_spin > o->thinktime)
460 o->thinktime_spin = o->thinktime;
463 * The low water mark cannot be bigger than the iodepth
465 if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
467 * syslet work around - if the workload is sequential,
468 * we want to let the queue drain all the way down to
469 * avoid seeking between async threads
471 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
474 o->iodepth_low = o->iodepth;
478 * If batch number isn't set, default to the same as iodepth
480 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
481 o->iodepth_batch = o->iodepth;
483 if (o->nr_files > td->files_index)
484 o->nr_files = td->files_index;
486 if (o->open_files > o->nr_files || !o->open_files)
487 o->open_files = o->nr_files;
489 if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
490 ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
491 o->rate_iops_min[1]))) {
492 log_err("fio: rate and rate_iops are mutually exclusive\n");
495 if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
496 (o->rate_iops[0] < o->rate_iops_min[0]) ||
497 (o->rate_iops[1] < o->rate_iops_min[1])) {
498 log_err("fio: minimum rate exceeds rate\n");
502 if (!o->timeout && o->time_based) {
503 log_err("fio: time_based requires a runtime/timeout setting\n");
505 ret = warnings_fatal;
508 if (o->fill_device && !o->size)
511 if (o->verify != VERIFY_NONE) {
512 if (td_write(td) && o->do_verify && o->numjobs > 1) {
513 log_info("Multiple writers may overwrite blocks that "
514 "belong to other jobs. This can cause "
515 "verification failures.\n");
516 ret = warnings_fatal;
519 o->refill_buffers = 1;
520 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
522 o->verify_interval = o->min_bs[DDIR_WRITE];
526 o->invalidate_cache = 0;
527 if (td->io_ops->flags & FIO_PIPEIO) {
528 log_info("fio: cannot pre-read files with an IO engine"
529 " that isn't seekable. Pre-read disabled.\n");
530 ret = warnings_fatal;
534 #ifndef FIO_HAVE_FDATASYNC
535 if (o->fdatasync_blocks) {
536 log_info("fio: this platform does not support fdatasync()"
537 " falling back to using fsync(). Use the 'fsync'"
538 " option instead of 'fdatasync' to get rid of"
540 o->fsync_blocks = o->fdatasync_blocks;
541 o->fdatasync_blocks = 0;
542 ret = warnings_fatal;
550 * This function leaks the buffer
552 static char *to_kmg(unsigned int val)
554 char *buf = malloc(32);
555 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
566 snprintf(buf, 31, "%u%c", val, *p);
570 /* External engines are specified by "external:name.o") */
571 static const char *get_engine_name(const char *str)
573 char *p = strstr(str, ":");
579 strip_blank_front(&p);
584 static int exists_and_not_file(const char *filename)
588 if (lstat(filename, &sb) == -1)
591 /* \\.\ is the device namespace in Windows, where every file
592 * is a device node */
593 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
599 static void td_fill_rand_seeds_os(struct thread_data *td)
601 os_random_seed(td->rand_seeds[0], &td->bsrange_state);
602 os_random_seed(td->rand_seeds[1], &td->verify_state);
603 os_random_seed(td->rand_seeds[2], &td->rwmix_state);
605 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
606 os_random_seed(td->rand_seeds[3], &td->next_file_state);
608 os_random_seed(td->rand_seeds[5], &td->file_size_state);
609 os_random_seed(td->rand_seeds[6], &td->trim_state);
614 if (td->o.rand_repeatable)
615 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
617 os_random_seed(td->rand_seeds[4], &td->random_state);
620 static void td_fill_rand_seeds_internal(struct thread_data *td)
622 init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
623 init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
624 init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
626 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
627 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
629 init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
630 init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
635 if (td->o.rand_repeatable)
636 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
638 init_rand_seed(&td->__random_state, td->rand_seeds[4]);
641 void td_fill_rand_seeds(struct thread_data *td)
643 if (td->o.use_os_rand)
644 td_fill_rand_seeds_os(td);
646 td_fill_rand_seeds_internal(td);
648 init_rand_seed(&td->buf_state, td->rand_seeds[7]);
652 * Initialize the various random states we need (random io, block size ranges,
653 * read/write mix, etc).
655 static int init_random_state(struct thread_data *td)
659 fd = open("/dev/urandom", O_RDONLY);
661 td_verror(td, errno, "open");
665 if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
666 (int) sizeof(td->rand_seeds)) {
667 td_verror(td, EIO, "read");
673 td_fill_rand_seeds(td);
678 * Initializes the ioengine configured for a job, if it has not been done so
681 int ioengine_load(struct thread_data *td)
686 * Engine has already been loaded.
691 engine = get_engine_name(td->o.ioengine);
692 td->io_ops = load_ioengine(td, engine);
694 log_err("fio: failed to load engine %s\n", engine);
698 if (td->io_ops->option_struct_size && td->io_ops->options) {
700 * In cases where td->eo is set, clone it for a child thread.
701 * This requires that the parent thread has the same ioengine,
702 * but that requirement must be enforced by the code which
705 void *origeo = td->eo;
707 * Otherwise use the default thread options.
709 if (!origeo && td != &def_thread && def_thread.eo &&
710 def_thread.io_ops->options == td->io_ops->options)
711 origeo = def_thread.eo;
713 options_init(td->io_ops->options);
714 td->eo = malloc(td->io_ops->option_struct_size);
716 * Use the default thread as an option template if this uses the
717 * same options structure and there are non-default options
721 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
722 options_mem_dupe(td->eo, td->io_ops->options);
724 memset(td->eo, 0, td->io_ops->option_struct_size);
725 fill_default_options(td->eo, td->io_ops->options);
727 *(struct thread_data **)td->eo = td;
734 * Adds a job to the list of things todo. Sanitizes the various options
735 * to make sure we don't have conflicts, and initializes various
738 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
740 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
741 "randread", "randwrite", "randrw" };
743 char fname[PATH_MAX];
744 int numjobs, file_alloced;
747 * the def_thread is just for options, it's not a real job
749 if (td == &def_thread)
753 * if we are just dumping the output command line, don't add the job
760 if (profile_td_init(td))
763 if (ioengine_load(td))
766 if (td->o.use_thread)
772 td->io_ops->flags |= FIO_RAWIO;
775 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
778 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
779 add_file(td, jobname);
781 for (i = 0; i < td->o.nr_files; i++) {
782 sprintf(fname, "%s.%d.%d", jobname,
783 td->thread_number, i);
789 if (fixup_options(td))
793 * IO engines only need this for option callbacks, and the address may
794 * change in subprocesses.
797 *(struct thread_data **)td->eo = NULL;
799 if (td->io_ops->flags & FIO_DISKLESSIO) {
802 for_each_file(td, f, i)
803 f->real_file_size = -1ULL;
806 td->mutex = fio_mutex_init(0);
808 td->ts.clat_percentiles = td->o.clat_percentiles;
809 if (td->o.overwrite_plist)
810 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
812 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
814 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
815 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
816 td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
817 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
818 td->ddir_seq_nr = td->o.ddir_seq_nr;
820 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
825 td->groupid = groupid;
828 if (init_random_state(td))
834 if (td->o.write_lat_log) {
835 setup_log(&td->lat_log, td->o.log_avg_msec);
836 setup_log(&td->slat_log, td->o.log_avg_msec);
837 setup_log(&td->clat_log, td->o.log_avg_msec);
839 if (td->o.write_bw_log)
840 setup_log(&td->bw_log, td->o.log_avg_msec);
841 if (td->o.write_iops_log)
842 setup_log(&td->iops_log, td->o.log_avg_msec);
845 td->o.name = strdup(jobname);
849 if (!strcmp(td->io_ops->name, "cpuio")) {
850 log_info("%s: ioengine=cpu, cpuload=%u,"
851 " cpucycle=%u\n", td->o.name,
855 char *c1, *c2, *c3, *c4;
857 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
858 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
859 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
860 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
862 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
863 " ioengine=%s, iodepth=%u\n",
864 td->o.name, td->groupid,
865 ddir_str[td->o.td_ddir],
875 } else if (job_add_num == 1)
880 * recurse add identical jobs, clear numjobs and stonewall options
881 * as they don't apply to sub-jobs
883 numjobs = td->o.numjobs;
885 struct thread_data *td_new = get_new_job(0, td, 1);
890 td_new->o.numjobs = 1;
891 td_new->o.stonewall = 0;
892 td_new->o.new_group = 0;
895 td_new->o.filename = NULL;
896 td_new->files_index = 0;
897 td_new->files_size = 0;
898 td_new->files = NULL;
901 job_add_num = numjobs - 1;
903 if (add_job(td_new, jobname, job_add_num))
914 * Parse as if 'o' was a command line
916 void add_job_opts(const char **o)
918 struct thread_data *td, *td_parent;
919 int i, in_global = 1;
923 td_parent = td = NULL;
925 if (!strncmp(o[i], "name", 4)) {
928 add_job(td, jobname, 0);
930 sprintf(jobname, "%s", o[i] + 5);
932 if (in_global && !td_parent)
933 td_parent = get_new_job(1, &def_thread, 0);
934 else if (!in_global && !td) {
936 td_parent = &def_thread;
937 td = get_new_job(0, td_parent, 0);
940 fio_options_parse(td_parent, (char **) &o[i], 1);
942 fio_options_parse(td, (char **) &o[i], 1);
947 add_job(td, jobname, 0);
950 static int skip_this_section(const char *name)
954 if (!nr_job_sections)
956 if (!strncmp(name, "global", 6))
959 for (i = 0; i < nr_job_sections; i++)
960 if (!strcmp(job_sections[i], name))
966 static int is_empty_or_comment(char *line)
970 for (i = 0; i < strlen(line); i++) {
975 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
983 * This is our [ini] type file parser.
985 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
988 struct thread_data *td;
992 int ret = 0, stonewall;
997 int i, alloc_opts, num_opts;
1002 if (!strcmp(file, "-"))
1005 f = fopen(file, "r");
1008 perror("fopen job file");
1013 string = malloc(4096);
1016 * it's really 256 + small bit, 280 should suffice
1019 memset(name, 0, 280);
1022 opts = malloc(sizeof(char *) * alloc_opts);
1025 stonewall = stonewall_flag;
1028 * if skip_fgets is set, we already have loaded a line we
1033 p = strsep(&file, "\n");
1035 p = fgets(string, 4096, f);
1041 strip_blank_front(&p);
1044 if (is_empty_or_comment(p))
1046 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1049 log_err("fio: option <%s> outside of [] job section\n",
1054 name[strlen(name) - 1] = '\0';
1056 if (skip_this_section(name)) {
1062 global = !strncmp(name, "global", 6);
1068 log_info("--name=%s ", name);
1072 td = get_new_job(global, &def_thread, 0);
1079 * Seperate multiple job files by a stonewall
1081 if (!global && stonewall) {
1082 td->o.stonewall = stonewall;
1087 memset(opts, 0, alloc_opts * sizeof(char *));
1091 p = strsep(&file, "\n");
1093 p = fgets(string, 4096, f);
1097 if (is_empty_or_comment(p))
1100 strip_blank_front(&p);
1103 * new section, break out and make sure we don't
1104 * fgets() a new line at the top.
1113 if (num_opts == alloc_opts) {
1115 opts = realloc(opts,
1116 alloc_opts * sizeof(char *));
1119 opts[num_opts] = strdup(p);
1123 ret = fio_options_parse(td, opts, num_opts);
1126 for (i = 0; i < num_opts; i++)
1127 log_info("--%s ", opts[i]);
1129 ret = add_job(td, name, 0);
1131 log_err("fio: job %s dropped\n", name);
1135 for (i = 0; i < num_opts; i++)
1144 while (i < nr_job_sections) {
1145 free(job_sections[i]);
1149 for (i = 0; i < num_opts; i++)
1155 if (!is_buf && f != stdin)
1160 static int fill_def_thread(void)
1162 memset(&def_thread, 0, sizeof(def_thread));
1164 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1165 def_thread.o.timeout = def_timeout;
1168 * fill default options
1170 fio_fill_default_options(&def_thread);
1174 static void usage(const char *name)
1176 printf("fio %s\n", fio_version_string);
1177 printf("%s [options] [job options] <job file(s)>\n", name);
1178 printf(" --debug=options\tEnable debug logging. May be one/more of:\n"
1179 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1180 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1181 printf(" --output\t\tWrite output to file\n");
1182 printf(" --timeout\t\tRuntime in seconds\n");
1183 printf(" --latency-log\t\tGenerate per-job latency logs\n");
1184 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n");
1185 printf(" --minimal\t\tMinimal (terse) output\n");
1186 printf(" --version\t\tPrint version info and exit\n");
1187 printf(" --terse-version=x\tSet terse version output format to 'x'\n");
1188 printf(" --help\t\tPrint this page\n");
1189 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1191 printf(" --enghelp=engine\tPrint ioengine help, or list"
1192 " available ioengines\n");
1193 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
1195 printf(" --showcmd\t\tTurn a job file into command line options\n");
1196 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
1197 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
1198 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
1200 printf(" --section=name\tOnly run specified section in job file\n");
1201 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
1203 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
1204 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1205 printf(" --server=args\t\tStart a backend fio server\n");
1206 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
1207 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
1208 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1209 printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
1212 #ifdef FIO_INC_DEBUG
1213 struct debug_level debug_levels[] = {
1214 { .name = "process", .shift = FD_PROCESS, },
1215 { .name = "file", .shift = FD_FILE, },
1216 { .name = "io", .shift = FD_IO, },
1217 { .name = "mem", .shift = FD_MEM, },
1218 { .name = "blktrace", .shift = FD_BLKTRACE },
1219 { .name = "verify", .shift = FD_VERIFY },
1220 { .name = "random", .shift = FD_RANDOM },
1221 { .name = "parse", .shift = FD_PARSE },
1222 { .name = "diskutil", .shift = FD_DISKUTIL },
1223 { .name = "job", .shift = FD_JOB },
1224 { .name = "mutex", .shift = FD_MUTEX },
1225 { .name = "profile", .shift = FD_PROFILE },
1226 { .name = "time", .shift = FD_TIME },
1227 { .name = "net", .shift = FD_NET },
1231 static int set_debug(const char *string)
1233 struct debug_level *dl;
1234 char *p = (char *) string;
1238 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1239 log_info("fio: dumping debug options:");
1240 for (i = 0; debug_levels[i].name; i++) {
1241 dl = &debug_levels[i];
1242 log_info("%s,", dl->name);
1248 while ((opt = strsep(&p, ",")) != NULL) {
1251 if (!strncmp(opt, "all", 3)) {
1252 log_info("fio: set all debug options\n");
1257 for (i = 0; debug_levels[i].name; i++) {
1258 dl = &debug_levels[i];
1259 found = !strncmp(opt, dl->name, strlen(dl->name));
1263 if (dl->shift == FD_JOB) {
1264 opt = strchr(opt, ':');
1266 log_err("fio: missing job number\n");
1270 fio_debug_jobno = atoi(opt);
1271 log_info("fio: set debug jobno %d\n",
1274 log_info("fio: set debug option %s\n", opt);
1275 fio_debug |= (1UL << dl->shift);
1281 log_err("fio: debug mask %s not found\n", opt);
1286 static int set_debug(const char *string)
1288 log_err("fio: debug tracing not included in build\n");
1293 static void fio_options_fill_optstring(void)
1295 char *ostr = cmd_optstr;
1299 while (l_opts[i].name) {
1300 ostr[c++] = l_opts[i].val;
1301 if (l_opts[i].has_arg == required_argument)
1303 else if (l_opts[i].has_arg == optional_argument) {
1312 static int client_flag_set(char c)
1317 while (l_opts[i].name) {
1318 int val = l_opts[i].val;
1320 if (c == (val & 0xff))
1321 return (val & FIO_CLIENT_FLAG);
1329 void parse_cmd_client(void *client, char *opt)
1331 fio_client_add_cmd_option(client, opt);
1334 int parse_cmd_line(int argc, char *argv[])
1336 struct thread_data *td = NULL;
1337 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1338 char *ostr = cmd_optstr;
1339 void *pid_file = NULL;
1340 void *cur_client = NULL;
1344 * Reset optind handling, since we may call this multiple times
1349 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1352 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1353 parse_cmd_client(cur_client, argv[optind - 1]);
1354 c &= ~FIO_CLIENT_FLAG;
1359 smalloc_pool_size = atoi(optarg);
1362 def_timeout = atoi(optarg);
1371 f_out = fopen(optarg, "w+");
1373 perror("fopen output");
1389 fio_show_option_help(optarg);
1395 fio_show_ioengine_help(optarg);
1407 log_info("fio %s\n", fio_version_string);
1412 terse_version = atoi(optarg);
1413 if (!(terse_version == 2 || terse_version == 3)) {
1414 log_err("fio: bad terse version format\n");
1420 if (!strcmp("always", optarg))
1421 eta_print = FIO_ETA_ALWAYS;
1422 else if (!strcmp("never", optarg))
1423 eta_print = FIO_ETA_NEVER;
1426 if (set_debug(optarg))
1432 if (!strcmp(optarg, "global")) {
1433 log_err("fio: can't use global as only "
1439 new_size = (nr_job_sections + 1) * sizeof(char *);
1440 job_sections = realloc(job_sections, new_size);
1441 job_sections[nr_job_sections] = strdup(optarg);
1446 exec_profile = strdup(optarg);
1448 case FIO_GETOPT_JOB: {
1449 const char *opt = l_opts[lidx].name;
1452 if (!strncmp(opt, "name", 4) && td) {
1453 ret = add_job(td, td->o.name ?: "fio", 0);
1459 int is_section = !strncmp(opt, "name", 4);
1462 if (!is_section || !strncmp(val, "global", 6))
1465 if (is_section && skip_this_section(val))
1468 td = get_new_job(global, &def_thread, 1);
1469 if (!td || ioengine_load(td))
1471 fio_options_set_ioengine_opts(l_opts, td);
1474 ret = fio_cmd_option_parse(td, opt, val);
1476 if (!ret && !strcmp(opt, "ioengine")) {
1478 if (ioengine_load(td))
1480 fio_options_set_ioengine_opts(l_opts, td);
1484 case FIO_GETOPT_IOENGINE: {
1485 const char *opt = l_opts[lidx].name;
1487 opt = l_opts[lidx].name;
1489 ret = fio_cmd_ioengine_option_parse(td, opt, val);
1496 max_jobs = atoi(optarg);
1497 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1498 log_err("fio: invalid max jobs: %d\n", max_jobs);
1505 log_err("fio: can't be both client and server\n");
1511 fio_server_set_arg(optarg);
1516 pid_file = strdup(optarg);
1520 log_err("fio: can't be both client and server\n");
1525 if (fio_client_add(optarg, &cur_client)) {
1526 log_err("fio: failed adding client %s\n", optarg);
1542 if (exit_val && !(is_backend || nr_clients))
1546 if (nr_clients && fio_clients_connect()) {
1552 if (is_backend && backend)
1553 return fio_start_server(pid_file);
1557 ret = add_job(td, td->o.name ?: "fio", 0);
1560 while (!ret && optind < argc) {
1562 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1563 ini_file[ini_idx - 1] = strdup(argv[optind]);
1570 int parse_options(int argc, char *argv[])
1577 fio_options_fill_optstring();
1578 fio_options_dup_and_init(l_opts);
1582 if (fill_def_thread())
1585 job_files = parse_cmd_line(argc, argv);
1587 if (job_files > 0) {
1588 for (i = 0; i < job_files; i++) {
1589 if (fill_def_thread())
1592 if (fio_clients_send_ini(ini_file[i]))
1595 } else if (!is_backend) {
1596 if (parse_jobs_ini(ini_file[i], 0, i))
1604 fio_options_free(&def_thread);
1606 if (!thread_number) {
1611 if (is_backend || nr_clients)
1616 log_err("No jobs(s) defined\n\n");
1626 if (def_thread.o.gtod_offload) {
1628 fio_gtod_offload = 1;
1629 fio_gtod_cpu = def_thread.o.gtod_cpu;
1633 log_info("fio %s\n", fio_version_string);