2 * This file contains job initialization and setup functions.
13 #include <sys/types.h>
24 #include "lib/getopt.h"
27 static char fio_version_string[] = __fio_stringify(FIO_MAJOR) "." \
28 __fio_stringify(FIO_MINOR) "." \
29 __fio_stringify(FIO_PATCH);
31 static char fio_version_string[] = __fio_stringify(FIO_MAJOR) "." \
32 __fio_stringify(FIO_MINOR);
35 #define FIO_RANDSEED (0xb1899bedUL)
37 static char **ini_file;
38 static int max_jobs = FIO_MAX_JOBS;
39 static int dump_cmdline;
40 static int def_timeout;
42 static struct thread_data def_thread;
43 struct thread_data *threads = NULL;
45 int exitall_on_terminate = 0;
48 unsigned long long mlock_size = 0;
51 char **job_sections = NULL;
52 int nr_job_sections = 0;
53 char *exec_profile = NULL;
54 int warnings_fatal = 0;
55 int terse_version = 2;
63 static int write_lat_log;
65 static int prev_group_jobs;
67 unsigned long fio_debug = 0;
68 unsigned int fio_debug_jobno = -1;
69 unsigned int *fio_debug_jobp = NULL;
71 static char cmd_optstr[256];
74 const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
92 #define FIO_CLIENT_FLAG (1 << 16)
95 * Command line options. These will contain the above, plus a few
96 * extra that only pertain to fio itself and not jobs.
98 static struct option l_opts[FIO_NR_OPTIONS] = {
100 .name = (char *) "output",
101 .has_arg = required_argument,
102 .val = 'o' | FIO_CLIENT_FLAG,
105 .name = (char *) "timeout",
106 .has_arg = required_argument,
107 .val = 't' | FIO_CLIENT_FLAG,
110 .name = (char *) "latency-log",
111 .has_arg = required_argument,
112 .val = 'l' | FIO_CLIENT_FLAG,
115 .name = (char *) "bandwidth-log",
116 .has_arg = required_argument,
117 .val = 'b' | FIO_CLIENT_FLAG,
120 .name = (char *) "minimal",
121 .has_arg = optional_argument,
122 .val = 'm' | FIO_CLIENT_FLAG,
125 .name = (char *) "version",
126 .has_arg = no_argument,
127 .val = 'v' | FIO_CLIENT_FLAG,
130 .name = (char *) "help",
131 .has_arg = no_argument,
132 .val = 'h' | FIO_CLIENT_FLAG,
135 .name = (char *) "cmdhelp",
136 .has_arg = optional_argument,
137 .val = 'c' | FIO_CLIENT_FLAG,
140 .name = (char *) "showcmd",
141 .has_arg = no_argument,
142 .val = 's' | FIO_CLIENT_FLAG,
145 .name = (char *) "readonly",
146 .has_arg = no_argument,
147 .val = 'r' | FIO_CLIENT_FLAG,
150 .name = (char *) "eta",
151 .has_arg = required_argument,
152 .val = 'e' | FIO_CLIENT_FLAG,
155 .name = (char *) "debug",
156 .has_arg = required_argument,
157 .val = 'd' | FIO_CLIENT_FLAG,
160 .name = (char *) "section",
161 .has_arg = required_argument,
162 .val = 'x' | FIO_CLIENT_FLAG,
165 .name = (char *) "alloc-size",
166 .has_arg = required_argument,
167 .val = 'a' | FIO_CLIENT_FLAG,
170 .name = (char *) "profile",
171 .has_arg = required_argument,
172 .val = 'p' | FIO_CLIENT_FLAG,
175 .name = (char *) "warnings-fatal",
176 .has_arg = no_argument,
177 .val = 'w' | FIO_CLIENT_FLAG,
180 .name = (char *) "max-jobs",
181 .has_arg = required_argument,
182 .val = 'j' | FIO_CLIENT_FLAG,
185 .name = (char *) "terse-version",
186 .has_arg = required_argument,
187 .val = 'V' | FIO_CLIENT_FLAG,
190 .name = (char *) "server",
191 .has_arg = optional_argument,
194 { .name = (char *) "daemonize",
195 .has_arg = no_argument,
199 .name = (char *) "client",
200 .has_arg = required_argument,
208 static void free_shm(void)
210 struct shmid_ds sbuf;
217 fio_debug_jobp = NULL;
219 shmctl(shm_id, IPC_RMID, &sbuf);
226 * The thread area is shared between the main process and the job
227 * threads/processes. So setup a shared memory segment that will hold
228 * all the job info. We use the end of the region for keeping track of
229 * open files across jobs, for file sharing.
231 static int setup_thread_area(void)
239 * 1024 is too much on some machines, scale max_jobs if
240 * we get a failure that looks like too large a shm segment
243 size_t size = max_jobs * sizeof(struct thread_data);
245 size += file_hash_size;
246 size += sizeof(unsigned int);
248 shm_id = shmget(0, size, IPC_CREAT | 0600);
251 if (errno != EINVAL) {
262 threads = shmat(shm_id, NULL, 0);
263 if (threads == (void *) -1) {
268 memset(threads, 0, max_jobs * sizeof(struct thread_data));
269 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
270 fio_debug_jobp = (void *) hash + file_hash_size;
271 *fio_debug_jobp = -1;
272 file_hash_init(hash);
277 * Return a free job structure.
279 static struct thread_data *get_new_job(int global, struct thread_data *parent)
281 struct thread_data *td;
285 if (setup_thread_area()) {
286 log_err("error: failed to setup shm segment\n");
289 if (thread_number >= max_jobs) {
290 log_err("error: maximum number of jobs (%d) reached.\n",
295 td = &threads[thread_number++];
298 td->o.uid = td->o.gid = -1U;
300 dup_files(td, parent);
301 options_mem_dupe(td);
303 profile_add_hooks(td);
305 td->thread_number = thread_number;
309 static void put_job(struct thread_data *td)
311 if (td == &def_thread)
317 log_info("fio: %s\n", td->verror);
319 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
323 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
325 unsigned int bs = td->o.min_bs[ddir];
326 unsigned long long bytes_per_sec;
328 assert(ddir_rw(ddir));
330 if (td->o.rate[ddir])
331 bytes_per_sec = td->o.rate[ddir];
333 bytes_per_sec = td->o.rate_iops[ddir] * bs;
335 if (!bytes_per_sec) {
336 log_err("rate lower than supported\n");
340 td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
341 td->rate_pending_usleep[ddir] = 0;
345 static int setup_rate(struct thread_data *td)
349 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
350 ret = __setup_rate(td, DDIR_READ);
351 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
352 ret |= __setup_rate(td, DDIR_WRITE);
357 static int fixed_block_size(struct thread_options *o)
359 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
360 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
361 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
365 * Lazy way of fixing up options that depend on each other. We could also
366 * define option callback handlers, but this is easier.
368 static int fixup_options(struct thread_data *td)
370 struct thread_options *o = &td->o;
373 #ifndef FIO_HAVE_PSHARED_MUTEX
374 if (!o->use_thread) {
375 log_info("fio: this platform does not support process shared"
376 " mutexes, forcing use of threads. Use the 'thread'"
377 " option to get rid of this warning.\n");
379 ret = warnings_fatal;
383 if (o->write_iolog_file && o->read_iolog_file) {
384 log_err("fio: read iolog overrides write_iolog\n");
385 free(o->write_iolog_file);
386 o->write_iolog_file = NULL;
387 ret = warnings_fatal;
391 * only really works for sequential io for now, and with 1 file
393 if (o->zone_size && td_random(td) && o->open_files == 1)
397 * Reads can do overwrites, we always need to pre-create the file
399 if (td_read(td) || td_rw(td))
402 if (!o->min_bs[DDIR_READ])
403 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
404 if (!o->max_bs[DDIR_READ])
405 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
406 if (!o->min_bs[DDIR_WRITE])
407 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
408 if (!o->max_bs[DDIR_WRITE])
409 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
411 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
414 * For random IO, allow blockalign offset other than min_bs.
416 if (!o->ba[DDIR_READ] || !td_random(td))
417 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
418 if (!o->ba[DDIR_WRITE] || !td_random(td))
419 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
421 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
422 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
424 log_err("fio: Any use of blockalign= turns off randommap\n");
426 ret = warnings_fatal;
429 if (!o->file_size_high)
430 o->file_size_high = o->file_size_low;
432 if (o->norandommap && o->verify != VERIFY_NONE
433 && !fixed_block_size(o)) {
434 log_err("fio: norandommap given for variable block sizes, "
435 "verify disabled\n");
436 o->verify = VERIFY_NONE;
437 ret = warnings_fatal;
439 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
440 log_err("fio: bs_unaligned may not work with raw io\n");
443 * thinktime_spin must be less than thinktime
445 if (o->thinktime_spin > o->thinktime)
446 o->thinktime_spin = o->thinktime;
449 * The low water mark cannot be bigger than the iodepth
451 if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
453 * syslet work around - if the workload is sequential,
454 * we want to let the queue drain all the way down to
455 * avoid seeking between async threads
457 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
460 o->iodepth_low = o->iodepth;
464 * If batch number isn't set, default to the same as iodepth
466 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
467 o->iodepth_batch = o->iodepth;
469 if (o->nr_files > td->files_index)
470 o->nr_files = td->files_index;
472 if (o->open_files > o->nr_files || !o->open_files)
473 o->open_files = o->nr_files;
475 if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
476 ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
477 o->rate_iops_min[1]))) {
478 log_err("fio: rate and rate_iops are mutually exclusive\n");
481 if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
482 (o->rate_iops[0] < o->rate_iops_min[0]) ||
483 (o->rate_iops[1] < o->rate_iops_min[1])) {
484 log_err("fio: minimum rate exceeds rate\n");
488 if (!o->timeout && o->time_based) {
489 log_err("fio: time_based requires a runtime/timeout setting\n");
491 ret = warnings_fatal;
494 if (o->fill_device && !o->size)
497 if (o->verify != VERIFY_NONE) {
498 if (td_write(td) && o->do_verify && o->numjobs > 1) {
499 log_info("Multiple writers may overwrite blocks that "
500 "belong to other jobs. This can cause "
501 "verification failures.\n");
502 ret = warnings_fatal;
505 o->refill_buffers = 1;
506 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
508 o->verify_interval = o->min_bs[DDIR_WRITE];
512 o->invalidate_cache = 0;
513 if (td->io_ops->flags & FIO_PIPEIO) {
514 log_info("fio: cannot pre-read files with an IO engine"
515 " that isn't seekable. Pre-read disabled.\n");
516 ret = warnings_fatal;
520 #ifndef FIO_HAVE_FDATASYNC
521 if (o->fdatasync_blocks) {
522 log_info("fio: this platform does not support fdatasync()"
523 " falling back to using fsync(). Use the 'fsync'"
524 " option instead of 'fdatasync' to get rid of"
526 o->fsync_blocks = o->fdatasync_blocks;
527 o->fdatasync_blocks = 0;
528 ret = warnings_fatal;
536 * This function leaks the buffer
538 static char *to_kmg(unsigned int val)
540 char *buf = malloc(32);
541 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
552 snprintf(buf, 31, "%u%c", val, *p);
556 /* External engines are specified by "external:name.o") */
557 static const char *get_engine_name(const char *str)
559 char *p = strstr(str, ":");
565 strip_blank_front(&p);
570 static int exists_and_not_file(const char *filename)
574 if (lstat(filename, &sb) == -1)
577 /* \\.\ is the device namespace in Windows, where every file
578 * is a device node */
579 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
585 static void td_fill_rand_seeds_os(struct thread_data *td)
587 os_random_seed(td->rand_seeds[0], &td->bsrange_state);
588 os_random_seed(td->rand_seeds[1], &td->verify_state);
589 os_random_seed(td->rand_seeds[2], &td->rwmix_state);
591 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
592 os_random_seed(td->rand_seeds[3], &td->next_file_state);
594 os_random_seed(td->rand_seeds[5], &td->file_size_state);
595 os_random_seed(td->rand_seeds[6], &td->trim_state);
600 if (td->o.rand_repeatable)
601 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
603 os_random_seed(td->rand_seeds[4], &td->random_state);
606 static void td_fill_rand_seeds_internal(struct thread_data *td)
608 init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
609 init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
610 init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
612 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
613 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
615 init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
616 init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
621 if (td->o.rand_repeatable)
622 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
624 init_rand_seed(&td->__random_state, td->rand_seeds[4]);
627 void td_fill_rand_seeds(struct thread_data *td)
629 if (td->o.use_os_rand)
630 td_fill_rand_seeds_os(td);
632 td_fill_rand_seeds_internal(td);
634 init_rand_seed(&td->buf_state, td->rand_seeds[7]);
638 * Initialize the various random states we need (random io, block size ranges,
639 * read/write mix, etc).
641 static int init_random_state(struct thread_data *td)
645 fd = open("/dev/urandom", O_RDONLY);
647 td_verror(td, errno, "open");
651 if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
652 (int) sizeof(td->rand_seeds)) {
653 td_verror(td, EIO, "read");
659 td_fill_rand_seeds(td);
664 * Adds a job to the list of things todo. Sanitizes the various options
665 * to make sure we don't have conflicts, and initializes various
668 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
670 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
671 "randread", "randwrite", "randrw" };
674 char fname[PATH_MAX];
675 int numjobs, file_alloced;
678 * the def_thread is just for options, it's not a real job
680 if (td == &def_thread)
684 * if we are just dumping the output command line, don't add the job
691 if (profile_td_init(td))
694 engine = get_engine_name(td->o.ioengine);
695 td->io_ops = load_ioengine(td, engine);
697 log_err("fio: failed to load engine %s\n", engine);
701 if (td->o.use_thread)
707 td->io_ops->flags |= FIO_RAWIO;
710 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
713 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
714 add_file(td, jobname);
716 for (i = 0; i < td->o.nr_files; i++) {
717 sprintf(fname, "%s.%d.%d", jobname,
718 td->thread_number, i);
724 if (fixup_options(td))
727 if (td->io_ops->flags & FIO_DISKLESSIO) {
730 for_each_file(td, f, i)
731 f->real_file_size = -1ULL;
734 td->mutex = fio_mutex_init(0);
736 td->ts.clat_percentiles = td->o.clat_percentiles;
737 if (td->o.overwrite_plist)
738 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
740 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
742 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
743 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
744 td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
745 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
746 td->ddir_seq_nr = td->o.ddir_seq_nr;
748 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
753 td->groupid = groupid;
756 if (init_random_state(td))
762 if (td->o.write_lat_log) {
763 setup_log(&td->lat_log);
764 setup_log(&td->slat_log);
765 setup_log(&td->clat_log);
767 if (td->o.write_bw_log)
768 setup_log(&td->bw_log);
769 if (td->o.write_iops_log)
770 setup_log(&td->iops_log);
773 td->o.name = strdup(jobname);
777 if (!strcmp(td->io_ops->name, "cpuio")) {
778 log_info("%s: ioengine=cpu, cpuload=%u,"
779 " cpucycle=%u\n", td->o.name,
783 char *c1, *c2, *c3, *c4;
785 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
786 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
787 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
788 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
790 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
791 " ioengine=%s, iodepth=%u\n",
792 td->o.name, td->groupid,
793 ddir_str[td->o.td_ddir],
803 } else if (job_add_num == 1)
808 * recurse add identical jobs, clear numjobs and stonewall options
809 * as they don't apply to sub-jobs
811 numjobs = td->o.numjobs;
813 struct thread_data *td_new = get_new_job(0, td);
818 td_new->o.numjobs = 1;
819 td_new->o.stonewall = 0;
820 td_new->o.new_group = 0;
823 td_new->o.filename = NULL;
824 td_new->files_index = 0;
825 td_new->files_size = 0;
826 td_new->files = NULL;
829 job_add_num = numjobs - 1;
831 if (add_job(td_new, jobname, job_add_num))
842 * Parse as if 'o' was a command line
844 void add_job_opts(const char **o)
846 struct thread_data *td, *td_parent;
847 int i, in_global = 1;
851 td_parent = td = NULL;
853 if (!strncmp(o[i], "name", 4)) {
856 add_job(td, jobname, 0);
858 sprintf(jobname, "%s", o[i] + 5);
860 if (in_global && !td_parent)
861 td_parent = get_new_job(1, &def_thread);
862 else if (!in_global && !td) {
864 td_parent = &def_thread;
865 td = get_new_job(0, td_parent);
868 fio_options_parse(td_parent, (char **) &o[i], 1);
870 fio_options_parse(td, (char **) &o[i], 1);
875 add_job(td, jobname, 0);
878 static int skip_this_section(const char *name)
882 if (!nr_job_sections)
884 if (!strncmp(name, "global", 6))
887 for (i = 0; i < nr_job_sections; i++)
888 if (!strcmp(job_sections[i], name))
894 static int is_empty_or_comment(char *line)
898 for (i = 0; i < strlen(line); i++) {
903 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
911 * This is our [ini] type file parser.
913 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
916 struct thread_data *td;
920 int ret = 0, stonewall;
925 int i, alloc_opts, num_opts;
930 if (!strcmp(file, "-"))
933 f = fopen(file, "r");
936 perror("fopen job file");
941 string = malloc(4096);
944 * it's really 256 + small bit, 280 should suffice
947 memset(name, 0, 280);
950 opts = malloc(sizeof(char *) * alloc_opts);
953 stonewall = stonewall_flag;
956 * if skip_fgets is set, we already have loaded a line we
961 p = strsep(&file, "\n");
963 p = fgets(string, 4095, f);
969 strip_blank_front(&p);
972 if (is_empty_or_comment(p))
974 if (sscanf(p, "[%255[^\n]]", name) != 1) {
977 log_err("fio: option <%s> outside of [] job section\n",
982 name[strlen(name) - 1] = '\0';
984 if (skip_this_section(name)) {
990 global = !strncmp(name, "global", 6);
996 log_info("--name=%s ", name);
1000 td = get_new_job(global, &def_thread);
1007 * Seperate multiple job files by a stonewall
1009 if (!global && stonewall) {
1010 td->o.stonewall = stonewall;
1015 memset(opts, 0, alloc_opts * sizeof(char *));
1019 p = strsep(&file, "\n");
1021 p = fgets(string, 4096, f);
1025 if (is_empty_or_comment(p))
1028 strip_blank_front(&p);
1031 * new section, break out and make sure we don't
1032 * fgets() a new line at the top.
1041 if (num_opts == alloc_opts) {
1043 opts = realloc(opts,
1044 alloc_opts * sizeof(char *));
1047 opts[num_opts] = strdup(p);
1051 ret = fio_options_parse(td, opts, num_opts);
1054 for (i = 0; i < num_opts; i++)
1055 log_info("--%s ", opts[i]);
1057 ret = add_job(td, name, 0);
1059 log_err("fio: job %s dropped\n", name);
1063 for (i = 0; i < num_opts; i++)
1071 for (i = 0; i < num_opts; i++)
1077 if (!is_buf && f != stdin)
1082 static int fill_def_thread(void)
1084 memset(&def_thread, 0, sizeof(def_thread));
1086 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1087 def_thread.o.timeout = def_timeout;
1090 * fill default options
1092 fio_fill_default_options(&def_thread);
1096 static void usage(const char *name)
1098 printf("fio %s\n", fio_version_string);
1099 printf("%s [options] [job options] <job file(s)>\n", name);
1100 printf("\t--debug=options\tEnable debug logging\n");
1101 printf("\t--output\tWrite output to file\n");
1102 printf("\t--timeout\tRuntime in seconds\n");
1103 printf("\t--latency-log\tGenerate per-job latency logs\n");
1104 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1105 printf("\t--minimal\tMinimal (terse) output\n");
1106 printf("\t--version\tPrint version info and exit\n");
1107 printf("\t--terse-version=x Terse version output format\n");
1108 printf("\t--help\t\tPrint this page\n");
1109 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
1111 printf("\t--showcmd\tTurn a job file into command line options\n");
1112 printf("\t--eta=when\tWhen ETA estimate should be printed\n");
1113 printf("\t \tMay be \"always\", \"never\" or \"auto\"\n");
1114 printf("\t--readonly\tTurn on safety read-only checks, preventing"
1116 printf("\t--section=name\tOnly run specified section in job file\n");
1117 printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
1119 printf("\t--warnings-fatal Fio parser warnings are fatal\n");
1120 printf("\t--max-jobs\tMaximum number of threads/processes to support\n");
1121 printf("\t--server=args\tStart a backend fio server\n");
1122 printf("\t--client=hostname Talk to remove backend fio server at hostname\n");
1123 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1124 printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
1127 #ifdef FIO_INC_DEBUG
1128 struct debug_level debug_levels[] = {
1129 { .name = "process", .shift = FD_PROCESS, },
1130 { .name = "file", .shift = FD_FILE, },
1131 { .name = "io", .shift = FD_IO, },
1132 { .name = "mem", .shift = FD_MEM, },
1133 { .name = "blktrace", .shift = FD_BLKTRACE },
1134 { .name = "verify", .shift = FD_VERIFY },
1135 { .name = "random", .shift = FD_RANDOM },
1136 { .name = "parse", .shift = FD_PARSE },
1137 { .name = "diskutil", .shift = FD_DISKUTIL },
1138 { .name = "job", .shift = FD_JOB },
1139 { .name = "mutex", .shift = FD_MUTEX },
1140 { .name = "profile", .shift = FD_PROFILE },
1141 { .name = "time", .shift = FD_TIME },
1142 { .name = "net", .shift = FD_NET },
1146 static int set_debug(const char *string)
1148 struct debug_level *dl;
1149 char *p = (char *) string;
1153 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1154 log_info("fio: dumping debug options:");
1155 for (i = 0; debug_levels[i].name; i++) {
1156 dl = &debug_levels[i];
1157 log_info("%s,", dl->name);
1163 while ((opt = strsep(&p, ",")) != NULL) {
1166 if (!strncmp(opt, "all", 3)) {
1167 log_info("fio: set all debug options\n");
1172 for (i = 0; debug_levels[i].name; i++) {
1173 dl = &debug_levels[i];
1174 found = !strncmp(opt, dl->name, strlen(dl->name));
1178 if (dl->shift == FD_JOB) {
1179 opt = strchr(opt, ':');
1181 log_err("fio: missing job number\n");
1185 fio_debug_jobno = atoi(opt);
1186 log_info("fio: set debug jobno %d\n",
1189 log_info("fio: set debug option %s\n", opt);
1190 fio_debug |= (1UL << dl->shift);
1196 log_err("fio: debug mask %s not found\n", opt);
1201 static int set_debug(const char *string)
1203 log_err("fio: debug tracing not included in build\n");
1208 static void fio_options_fill_optstring(void)
1210 char *ostr = cmd_optstr;
1214 while (l_opts[i].name) {
1215 ostr[c++] = l_opts[i].val;
1216 if (l_opts[i].has_arg == required_argument)
1218 else if (l_opts[i].has_arg == optional_argument) {
1227 static int client_flag_set(char c)
1232 while (l_opts[i].name) {
1233 int val = l_opts[i].val;
1235 if (c == (val & 0xff))
1236 return (val & FIO_CLIENT_FLAG);
1244 int parse_cmd_client(void *client, char *opt)
1246 return fio_client_add_cmd_option(client, opt);
1249 int parse_cmd_line(int argc, char *argv[])
1251 struct thread_data *td = NULL;
1252 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1253 char *ostr = cmd_optstr;
1254 int daemonize_server = 0;
1255 void *cur_client = NULL;
1259 * Reset optind handling, since we may call this multiple times
1264 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1267 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1268 if (parse_cmd_client(cur_client, argv[optind - 1])) {
1273 c &= ~FIO_CLIENT_FLAG;
1278 smalloc_pool_size = atoi(optarg);
1281 def_timeout = atoi(optarg);
1290 f_out = fopen(optarg, "w+");
1292 perror("fopen output");
1308 fio_show_option_help(optarg);
1320 log_info("fio %s\n", fio_version_string);
1325 terse_version = atoi(optarg);
1326 if (terse_version != 2) {
1327 log_err("fio: bad terse version format\n");
1333 if (!strcmp("always", optarg))
1334 eta_print = FIO_ETA_ALWAYS;
1335 else if (!strcmp("never", optarg))
1336 eta_print = FIO_ETA_NEVER;
1339 if (set_debug(optarg))
1345 if (!strcmp(optarg, "global")) {
1346 log_err("fio: can't use global as only "
1352 new_size = (nr_job_sections + 1) * sizeof(char *);
1353 job_sections = realloc(job_sections, new_size);
1354 job_sections[nr_job_sections] = strdup(optarg);
1359 exec_profile = strdup(optarg);
1361 case FIO_GETOPT_JOB: {
1362 const char *opt = l_opts[lidx].name;
1365 if (!strncmp(opt, "name", 4) && td) {
1366 ret = add_job(td, td->o.name ?: "fio", 0);
1372 int is_section = !strncmp(opt, "name", 4);
1375 if (!is_section || !strncmp(val, "global", 6))
1378 if (is_section && skip_this_section(val))
1381 td = get_new_job(global, &def_thread);
1386 ret = fio_cmd_option_parse(td, opt, val);
1393 max_jobs = atoi(optarg);
1394 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1395 log_err("fio: invalid max jobs: %d\n", max_jobs);
1402 log_err("fio: can't be both client and server\n");
1408 fio_server_set_arg(optarg);
1413 daemonize_server = 1;
1417 log_err("fio: can't be both client and server\n");
1422 if (fio_client_add(optarg, &cur_client)) {
1423 log_err("fio: failed adding client %s\n", optarg);
1439 if (exit_val && !(is_backend || nr_clients))
1443 if (nr_clients && fio_clients_connect()) {
1449 if (is_backend && backend)
1450 return fio_start_server(daemonize_server);
1454 ret = add_job(td, td->o.name ?: "fio", 0);
1457 while (!ret && optind < argc) {
1459 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1460 ini_file[ini_idx - 1] = strdup(argv[optind]);
1467 int parse_options(int argc, char *argv[])
1474 fio_options_fill_optstring();
1475 fio_options_dup_and_init(l_opts);
1479 if (fill_def_thread())
1482 job_files = parse_cmd_line(argc, argv);
1484 if (job_files > 0) {
1485 for (i = 0; i < job_files; i++) {
1486 if (fill_def_thread())
1489 if (fio_clients_send_ini(ini_file[i]))
1492 } else if (!is_backend) {
1493 if (parse_jobs_ini(ini_file[i], 0, i))
1501 options_mem_free(&def_thread);
1503 if (!thread_number) {
1508 if (is_backend || nr_clients)
1513 log_err("No jobs(s) defined\n\n");
1523 if (def_thread.o.gtod_offload) {
1525 fio_gtod_offload = 1;
1526 fio_gtod_cpu = def_thread.o.gtod_cpu;
1529 log_info("fio %s\n", fio_version_string);