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;
41 static struct thread_data def_thread;
42 struct thread_data *threads = NULL;
44 int exitall_on_terminate = 0;
47 unsigned long long mlock_size = 0;
50 char **job_sections = NULL;
51 int nr_job_sections = 0;
52 char *exec_profile = NULL;
53 int warnings_fatal = 0;
54 int terse_version = 2;
62 static int write_lat_log;
64 static int prev_group_jobs;
66 unsigned long fio_debug = 0;
67 unsigned int fio_debug_jobno = -1;
68 unsigned int *fio_debug_jobp = NULL;
70 static char cmd_optstr[256];
73 * Command line options. These will contain the above, plus a few
74 * extra that only pertain to fio itself and not jobs.
76 static struct option l_opts[FIO_NR_OPTIONS] = {
78 .name = (char *) "output",
79 .has_arg = required_argument,
83 .name = (char *) "timeout",
84 .has_arg = required_argument,
88 .name = (char *) "latency-log",
89 .has_arg = required_argument,
93 .name = (char *) "bandwidth-log",
94 .has_arg = required_argument,
98 .name = (char *) "minimal",
99 .has_arg = optional_argument,
103 .name = (char *) "version",
104 .has_arg = no_argument,
108 .name = (char *) "help",
109 .has_arg = no_argument,
113 .name = (char *) "cmdhelp",
114 .has_arg = optional_argument,
118 .name = (char *) "showcmd",
119 .has_arg = no_argument,
123 .name = (char *) "readonly",
124 .has_arg = no_argument,
128 .name = (char *) "eta",
129 .has_arg = required_argument,
133 .name = (char *) "debug",
134 .has_arg = required_argument,
138 .name = (char *) "section",
139 .has_arg = required_argument,
143 .name = (char *) "alloc-size",
144 .has_arg = required_argument,
148 .name = (char *) "profile",
149 .has_arg = required_argument,
153 .name = (char *) "warnings-fatal",
154 .has_arg = no_argument,
158 .name = (char *) "max-jobs",
159 .has_arg = required_argument,
163 .name = (char *) "terse-version",
164 .has_arg = required_argument,
168 .name = (char *) "server",
169 .has_arg = no_argument,
172 { .name = (char *) "daemonize",
173 .has_arg = no_argument,
177 .name = (char *) "net-port",
178 .has_arg = required_argument,
182 .name = (char *) "client",
183 .has_arg = required_argument,
191 static void free_shm(void)
193 struct shmid_ds sbuf;
200 fio_debug_jobp = NULL;
202 shmctl(shm_id, IPC_RMID, &sbuf);
209 * The thread area is shared between the main process and the job
210 * threads/processes. So setup a shared memory segment that will hold
211 * all the job info. We use the end of the region for keeping track of
212 * open files across jobs, for file sharing.
214 static int setup_thread_area(void)
222 * 1024 is too much on some machines, scale max_jobs if
223 * we get a failure that looks like too large a shm segment
226 size_t size = max_jobs * sizeof(struct thread_data);
228 size += file_hash_size;
229 size += sizeof(unsigned int);
231 shm_id = shmget(0, size, IPC_CREAT | 0600);
234 if (errno != EINVAL) {
245 threads = shmat(shm_id, NULL, 0);
246 if (threads == (void *) -1) {
251 memset(threads, 0, max_jobs * sizeof(struct thread_data));
252 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
253 fio_debug_jobp = (void *) hash + file_hash_size;
254 *fio_debug_jobp = -1;
255 file_hash_init(hash);
260 * Return a free job structure.
262 static struct thread_data *get_new_job(int global, struct thread_data *parent)
264 struct thread_data *td;
268 if (setup_thread_area()) {
269 log_err("error: failed to setup shm segment\n");
272 if (thread_number >= max_jobs) {
273 log_err("error: maximum number of jobs (%d) reached.\n",
278 td = &threads[thread_number++];
281 td->o.uid = td->o.gid = -1U;
283 dup_files(td, parent);
284 options_mem_dupe(td);
286 profile_add_hooks(td);
288 td->thread_number = thread_number;
292 static void put_job(struct thread_data *td)
294 if (td == &def_thread)
300 log_info("fio: %s\n", td->verror);
302 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
306 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
308 unsigned int bs = td->o.min_bs[ddir];
309 unsigned long long bytes_per_sec;
311 assert(ddir_rw(ddir));
313 if (td->o.rate[ddir])
314 bytes_per_sec = td->o.rate[ddir];
316 bytes_per_sec = td->o.rate_iops[ddir] * bs;
318 if (!bytes_per_sec) {
319 log_err("rate lower than supported\n");
323 td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
324 td->rate_pending_usleep[ddir] = 0;
328 static int setup_rate(struct thread_data *td)
332 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
333 ret = __setup_rate(td, DDIR_READ);
334 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
335 ret |= __setup_rate(td, DDIR_WRITE);
340 static int fixed_block_size(struct thread_options *o)
342 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
343 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
344 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
348 * Lazy way of fixing up options that depend on each other. We could also
349 * define option callback handlers, but this is easier.
351 static int fixup_options(struct thread_data *td)
353 struct thread_options *o = &td->o;
356 #ifndef FIO_HAVE_PSHARED_MUTEX
357 if (!o->use_thread) {
358 log_info("fio: this platform does not support process shared"
359 " mutexes, forcing use of threads. Use the 'thread'"
360 " option to get rid of this warning.\n");
362 ret = warnings_fatal;
366 if (o->write_iolog_file && o->read_iolog_file) {
367 log_err("fio: read iolog overrides write_iolog\n");
368 free(o->write_iolog_file);
369 o->write_iolog_file = NULL;
370 ret = warnings_fatal;
374 * only really works for sequential io for now, and with 1 file
376 if (o->zone_size && td_random(td) && o->open_files == 1)
380 * Reads can do overwrites, we always need to pre-create the file
382 if (td_read(td) || td_rw(td))
385 if (!o->min_bs[DDIR_READ])
386 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
387 if (!o->max_bs[DDIR_READ])
388 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
389 if (!o->min_bs[DDIR_WRITE])
390 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
391 if (!o->max_bs[DDIR_WRITE])
392 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
394 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
397 * For random IO, allow blockalign offset other than min_bs.
399 if (!o->ba[DDIR_READ] || !td_random(td))
400 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
401 if (!o->ba[DDIR_WRITE] || !td_random(td))
402 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
404 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
405 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
407 log_err("fio: Any use of blockalign= turns off randommap\n");
409 ret = warnings_fatal;
412 if (!o->file_size_high)
413 o->file_size_high = o->file_size_low;
415 if (o->norandommap && o->verify != VERIFY_NONE
416 && !fixed_block_size(o)) {
417 log_err("fio: norandommap given for variable block sizes, "
418 "verify disabled\n");
419 o->verify = VERIFY_NONE;
420 ret = warnings_fatal;
422 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
423 log_err("fio: bs_unaligned may not work with raw io\n");
426 * thinktime_spin must be less than thinktime
428 if (o->thinktime_spin > o->thinktime)
429 o->thinktime_spin = o->thinktime;
432 * The low water mark cannot be bigger than the iodepth
434 if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
436 * syslet work around - if the workload is sequential,
437 * we want to let the queue drain all the way down to
438 * avoid seeking between async threads
440 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
443 o->iodepth_low = o->iodepth;
447 * If batch number isn't set, default to the same as iodepth
449 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
450 o->iodepth_batch = o->iodepth;
452 if (o->nr_files > td->files_index)
453 o->nr_files = td->files_index;
455 if (o->open_files > o->nr_files || !o->open_files)
456 o->open_files = o->nr_files;
458 if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
459 ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
460 o->rate_iops_min[1]))) {
461 log_err("fio: rate and rate_iops are mutually exclusive\n");
464 if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
465 (o->rate_iops[0] < o->rate_iops_min[0]) ||
466 (o->rate_iops[1] < o->rate_iops_min[1])) {
467 log_err("fio: minimum rate exceeds rate\n");
471 if (!o->timeout && o->time_based) {
472 log_err("fio: time_based requires a runtime/timeout setting\n");
474 ret = warnings_fatal;
477 if (o->fill_device && !o->size)
480 if (o->verify != VERIFY_NONE) {
481 if (td_write(td) && o->do_verify && o->numjobs > 1) {
482 log_info("Multiple writers may overwrite blocks that "
483 "belong to other jobs. This can cause "
484 "verification failures.\n");
485 ret = warnings_fatal;
488 o->refill_buffers = 1;
489 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
491 o->verify_interval = o->min_bs[DDIR_WRITE];
495 o->invalidate_cache = 0;
496 if (td->io_ops->flags & FIO_PIPEIO) {
497 log_info("fio: cannot pre-read files with an IO engine"
498 " that isn't seekable. Pre-read disabled.\n");
499 ret = warnings_fatal;
503 #ifndef FIO_HAVE_FDATASYNC
504 if (o->fdatasync_blocks) {
505 log_info("fio: this platform does not support fdatasync()"
506 " falling back to using fsync(). Use the 'fsync'"
507 " option instead of 'fdatasync' to get rid of"
509 o->fsync_blocks = o->fdatasync_blocks;
510 o->fdatasync_blocks = 0;
511 ret = warnings_fatal;
519 * This function leaks the buffer
521 static char *to_kmg(unsigned int val)
523 char *buf = malloc(32);
524 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
535 snprintf(buf, 31, "%u%c", val, *p);
539 /* External engines are specified by "external:name.o") */
540 static const char *get_engine_name(const char *str)
542 char *p = strstr(str, ":");
548 strip_blank_front(&p);
553 static int exists_and_not_file(const char *filename)
557 if (lstat(filename, &sb) == -1)
560 /* \\.\ is the device namespace in Windows, where every file
561 * is a device node */
562 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
568 static void td_fill_rand_seeds_os(struct thread_data *td)
570 os_random_seed(td->rand_seeds[0], &td->bsrange_state);
571 os_random_seed(td->rand_seeds[1], &td->verify_state);
572 os_random_seed(td->rand_seeds[2], &td->rwmix_state);
574 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
575 os_random_seed(td->rand_seeds[3], &td->next_file_state);
577 os_random_seed(td->rand_seeds[5], &td->file_size_state);
578 os_random_seed(td->rand_seeds[6], &td->trim_state);
583 if (td->o.rand_repeatable)
584 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
586 os_random_seed(td->rand_seeds[4], &td->random_state);
589 static void td_fill_rand_seeds_internal(struct thread_data *td)
591 init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
592 init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
593 init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
595 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
596 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
598 init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
599 init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
604 if (td->o.rand_repeatable)
605 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
607 init_rand_seed(&td->__random_state, td->rand_seeds[4]);
610 void td_fill_rand_seeds(struct thread_data *td)
612 if (td->o.use_os_rand)
613 td_fill_rand_seeds_os(td);
615 td_fill_rand_seeds_internal(td);
617 init_rand_seed(&td->buf_state, td->rand_seeds[7]);
621 * Initialize the various random states we need (random io, block size ranges,
622 * read/write mix, etc).
624 static int init_random_state(struct thread_data *td)
628 fd = open("/dev/urandom", O_RDONLY);
630 td_verror(td, errno, "open");
634 if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
635 (int) sizeof(td->rand_seeds)) {
636 td_verror(td, EIO, "read");
642 td_fill_rand_seeds(td);
647 * Adds a job to the list of things todo. Sanitizes the various options
648 * to make sure we don't have conflicts, and initializes various
651 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
653 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
654 "randread", "randwrite", "randrw" };
657 char fname[PATH_MAX];
658 int numjobs, file_alloced;
661 * the def_thread is just for options, it's not a real job
663 if (td == &def_thread)
667 * if we are just dumping the output command line, don't add the job
674 if (profile_td_init(td))
677 engine = get_engine_name(td->o.ioengine);
678 td->io_ops = load_ioengine(td, engine);
680 log_err("fio: failed to load engine %s\n", engine);
684 if (td->o.use_thread)
690 td->io_ops->flags |= FIO_RAWIO;
693 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
696 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
697 add_file(td, jobname);
699 for (i = 0; i < td->o.nr_files; i++) {
700 sprintf(fname, "%s.%d.%d", jobname,
701 td->thread_number, i);
707 if (fixup_options(td))
710 if (td->io_ops->flags & FIO_DISKLESSIO) {
713 for_each_file(td, f, i)
714 f->real_file_size = -1ULL;
717 td->mutex = fio_mutex_init(0);
719 td->ts.clat_percentiles = td->o.clat_percentiles;
720 if (td->o.overwrite_plist)
721 td->ts.percentile_list = td->o.percentile_list;
723 td->ts.percentile_list = NULL;
725 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
726 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
727 td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
728 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
729 td->ddir_seq_nr = td->o.ddir_seq_nr;
731 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
736 td->groupid = groupid;
739 if (init_random_state(td))
745 if (td->o.write_lat_log) {
746 setup_log(&td->lat_log);
747 setup_log(&td->slat_log);
748 setup_log(&td->clat_log);
750 if (td->o.write_bw_log)
751 setup_log(&td->bw_log);
754 td->o.name = strdup(jobname);
758 if (!strcmp(td->io_ops->name, "cpuio")) {
759 log_info("%s: ioengine=cpu, cpuload=%u,"
760 " cpucycle=%u\n", td->o.name,
764 char *c1, *c2, *c3, *c4;
766 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
767 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
768 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
769 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
771 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
772 " ioengine=%s, iodepth=%u\n",
773 td->o.name, td->groupid,
774 ddir_str[td->o.td_ddir],
784 } else if (job_add_num == 1)
789 * recurse add identical jobs, clear numjobs and stonewall options
790 * as they don't apply to sub-jobs
792 numjobs = td->o.numjobs;
794 struct thread_data *td_new = get_new_job(0, td);
799 td_new->o.numjobs = 1;
800 td_new->o.stonewall = 0;
801 td_new->o.new_group = 0;
804 td_new->o.filename = NULL;
805 td_new->files_index = 0;
806 td_new->files_size = 0;
807 td_new->files = NULL;
810 job_add_num = numjobs - 1;
812 if (add_job(td_new, jobname, job_add_num))
823 * Parse as if 'o' was a command line
825 void add_job_opts(const char **o)
827 struct thread_data *td, *td_parent;
828 int i, in_global = 1;
832 td_parent = td = NULL;
834 if (!strncmp(o[i], "name", 4)) {
837 add_job(td, jobname, 0);
839 sprintf(jobname, "%s", o[i] + 5);
841 if (in_global && !td_parent)
842 td_parent = get_new_job(1, &def_thread);
843 else if (!in_global && !td) {
845 td_parent = &def_thread;
846 td = get_new_job(0, td_parent);
849 fio_options_parse(td_parent, (char **) &o[i], 1);
851 fio_options_parse(td, (char **) &o[i], 1);
856 add_job(td, jobname, 0);
859 static int skip_this_section(const char *name)
863 if (!nr_job_sections)
865 if (!strncmp(name, "global", 6))
868 for (i = 0; i < nr_job_sections; i++)
869 if (!strcmp(job_sections[i], name))
875 static int is_empty_or_comment(char *line)
879 for (i = 0; i < strlen(line); i++) {
884 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
892 * This is our [ini] type file parser.
894 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
897 struct thread_data *td;
901 int ret = 0, stonewall;
906 int i, alloc_opts, num_opts;
911 if (!strcmp(file, "-"))
914 f = fopen(file, "r");
917 perror("fopen job file");
922 string = malloc(4096);
925 * it's really 256 + small bit, 280 should suffice
928 memset(name, 0, 280);
931 opts = malloc(sizeof(char *) * alloc_opts);
934 stonewall = stonewall_flag;
937 * if skip_fgets is set, we already have loaded a line we
942 p = strsep(&file, "\n");
944 p = fgets(string, 4095, f);
950 strip_blank_front(&p);
953 if (is_empty_or_comment(p))
955 if (sscanf(p, "[%255[^\n]]", name) != 1) {
958 log_err("fio: option <%s> outside of [] job section\n",
963 name[strlen(name) - 1] = '\0';
965 if (skip_this_section(name)) {
971 global = !strncmp(name, "global", 6);
977 log_info("--name=%s ", name);
981 td = get_new_job(global, &def_thread);
988 * Seperate multiple job files by a stonewall
990 if (!global && stonewall) {
991 td->o.stonewall = stonewall;
996 memset(opts, 0, alloc_opts * sizeof(char *));
1000 p = strsep(&file, "\n");
1002 p = fgets(string, 4096, f);
1006 if (is_empty_or_comment(p))
1009 strip_blank_front(&p);
1012 * new section, break out and make sure we don't
1013 * fgets() a new line at the top.
1022 if (num_opts == alloc_opts) {
1024 opts = realloc(opts,
1025 alloc_opts * sizeof(char *));
1028 opts[num_opts] = strdup(p);
1032 ret = fio_options_parse(td, opts, num_opts);
1035 for (i = 0; i < num_opts; i++)
1036 log_info("--%s ", opts[i]);
1038 ret = add_job(td, name, 0);
1040 log_err("fio: job %s dropped\n", name);
1044 for (i = 0; i < num_opts; i++)
1052 for (i = 0; i < num_opts; i++)
1058 if (!is_buf && f != stdin)
1063 static int fill_def_thread(void)
1065 memset(&def_thread, 0, sizeof(def_thread));
1067 fio_getaffinity(getpid(), &def_thread.o.cpumask);
1070 * fill default options
1072 fio_fill_default_options(&def_thread);
1076 static void usage(const char *name)
1078 printf("%s\n", fio_version_string);
1079 printf("%s [options] [job options] <job file(s)>\n", name);
1080 printf("\t--debug=options\tEnable debug logging\n");
1081 printf("\t--output\tWrite output to file\n");
1082 printf("\t--timeout\tRuntime in seconds\n");
1083 printf("\t--latency-log\tGenerate per-job latency logs\n");
1084 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1085 printf("\t--minimal\tMinimal (terse) output\n");
1086 printf("\t--version\tPrint version info and exit\n");
1087 printf("\t--terse-version=x Terse version output format\n");
1088 printf("\t--help\t\tPrint this page\n");
1089 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
1091 printf("\t--showcmd\tTurn a job file into command line options\n");
1092 printf("\t--eta=when\tWhen ETA estimate should be printed\n");
1093 printf("\t \tMay be \"always\", \"never\" or \"auto\"\n");
1094 printf("\t--readonly\tTurn on safety read-only checks, preventing"
1096 printf("\t--section=name\tOnly run specified section in job file\n");
1097 printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
1099 printf("\t--warnings-fatal Fio parser warnings are fatal\n");
1100 printf("\t--max-jobs\tMaximum number of threads/processes to support\n");
1101 printf("\t--server\tStart a backend fio server\n");
1102 printf("\t--client=hostname Talk to remove backend fio server at hostname\n");
1103 printf("\t--net-port=port\tUse specified port for client/server connection\n");
1104 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1105 printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
1108 #ifdef FIO_INC_DEBUG
1109 struct debug_level debug_levels[] = {
1110 { .name = "process", .shift = FD_PROCESS, },
1111 { .name = "file", .shift = FD_FILE, },
1112 { .name = "io", .shift = FD_IO, },
1113 { .name = "mem", .shift = FD_MEM, },
1114 { .name = "blktrace", .shift = FD_BLKTRACE },
1115 { .name = "verify", .shift = FD_VERIFY },
1116 { .name = "random", .shift = FD_RANDOM },
1117 { .name = "parse", .shift = FD_PARSE },
1118 { .name = "diskutil", .shift = FD_DISKUTIL },
1119 { .name = "job", .shift = FD_JOB },
1120 { .name = "mutex", .shift = FD_MUTEX },
1121 { .name = "profile", .shift = FD_PROFILE },
1122 { .name = "time", .shift = FD_TIME },
1123 { .name = "net", .shift = FD_NET },
1127 static int set_debug(const char *string)
1129 struct debug_level *dl;
1130 char *p = (char *) string;
1134 if (!strcmp(string, "?") || !strcmp(string, "help")) {
1135 log_info("fio: dumping debug options:");
1136 for (i = 0; debug_levels[i].name; i++) {
1137 dl = &debug_levels[i];
1138 log_info("%s,", dl->name);
1144 while ((opt = strsep(&p, ",")) != NULL) {
1147 if (!strncmp(opt, "all", 3)) {
1148 log_info("fio: set all debug options\n");
1153 for (i = 0; debug_levels[i].name; i++) {
1154 dl = &debug_levels[i];
1155 found = !strncmp(opt, dl->name, strlen(dl->name));
1159 if (dl->shift == FD_JOB) {
1160 opt = strchr(opt, ':');
1162 log_err("fio: missing job number\n");
1166 fio_debug_jobno = atoi(opt);
1167 log_info("fio: set debug jobno %d\n",
1170 log_info("fio: set debug option %s\n", opt);
1171 fio_debug |= (1UL << dl->shift);
1177 log_err("fio: debug mask %s not found\n", opt);
1182 static int set_debug(const char *string)
1184 log_err("fio: debug tracing not included in build\n");
1189 static void fio_options_fill_optstring(void)
1191 char *ostr = cmd_optstr;
1195 while (l_opts[i].name) {
1196 ostr[c++] = l_opts[i].val;
1197 if (l_opts[i].has_arg == required_argument)
1199 else if (l_opts[i].has_arg == optional_argument) {
1208 int parse_cmd_line(int argc, char *argv[])
1210 struct thread_data *td = NULL;
1211 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1212 char *ostr = cmd_optstr;
1213 int daemonize_server = 0;
1214 char *cur_client = NULL;
1217 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1220 fio_client_add_cmd_option(cur_client, argv[optind]);
1221 smalloc_pool_size = atoi(optarg);
1224 fio_client_add_cmd_option(cur_client, argv[optind]);
1225 def_thread.o.timeout = atoi(optarg);
1228 fio_client_add_cmd_option(cur_client, argv[optind]);
1232 fio_client_add_cmd_option(cur_client, argv[optind]);
1236 fio_client_add_cmd_option(cur_client, argv[optind]);
1237 f_out = fopen(optarg, "w+");
1239 perror("fopen output");
1245 fio_client_add_cmd_option(cur_client, argv[optind]);
1252 exit(fio_show_option_help(optarg));
1254 fio_client_add_cmd_option(cur_client, argv[optind]);
1258 fio_client_add_cmd_option(cur_client, argv[optind]);
1262 log_info("%s\n", fio_version_string);
1265 fio_client_add_cmd_option(cur_client, argv[optind]);
1266 terse_version = atoi(optarg);
1267 if (terse_version != 2) {
1268 log_err("fio: bad terse version format\n");
1274 fio_client_add_cmd_option(cur_client, argv[optind]);
1275 if (!strcmp("always", optarg))
1276 eta_print = FIO_ETA_ALWAYS;
1277 else if (!strcmp("never", optarg))
1278 eta_print = FIO_ETA_NEVER;
1281 fio_client_add_cmd_option(cur_client, argv[optind]);
1282 if (set_debug(optarg))
1288 fio_client_add_cmd_option(cur_client, argv[optind]);
1290 if (!strcmp(optarg, "global")) {
1291 log_err("fio: can't use global as only "
1297 new_size = (nr_job_sections + 1) * sizeof(char *);
1298 job_sections = realloc(job_sections, new_size);
1299 job_sections[nr_job_sections] = strdup(optarg);
1304 fio_client_add_cmd_option(cur_client, argv[optind]);
1305 exec_profile = strdup(optarg);
1307 case FIO_GETOPT_JOB: {
1308 const char *opt = l_opts[lidx].name;
1311 fio_client_add_cmd_option(cur_client, argv[optind]);
1313 if (!strncmp(opt, "name", 4) && td) {
1314 ret = add_job(td, td->o.name ?: "fio", 0);
1320 int is_section = !strncmp(opt, "name", 4);
1323 if (!is_section || !strncmp(val, "global", 6))
1326 if (is_section && skip_this_section(val))
1329 td = get_new_job(global, &def_thread);
1334 ret = fio_cmd_option_parse(td, opt, val);
1338 fio_client_add_cmd_option(cur_client, argv[optind]);
1342 fio_client_add_cmd_option(cur_client, argv[optind]);
1343 max_jobs = atoi(optarg);
1344 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1345 log_err("fio: invalid max jobs: %d\n", max_jobs);
1352 log_err("fio: can't be both client and server\n");
1361 daemonize_server = 1;
1364 fio_net_port = atoi(optarg);
1368 log_err("fio: can't be both client and server\n");
1373 fio_client_add(optarg);
1374 cur_client = optarg;
1388 if (nr_clients && fio_clients_connect()) {
1394 if (is_backend && backend)
1395 return fio_start_server(daemonize_server);
1399 ret = add_job(td, td->o.name ?: "fio", 0);
1402 while (optind < argc) {
1404 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1405 ini_file[ini_idx - 1] = strdup(argv[optind]);
1412 int parse_options(int argc, char *argv[])
1419 fio_options_fill_optstring();
1420 fio_options_dup_and_init(l_opts);
1424 if (fill_def_thread())
1427 job_files = parse_cmd_line(argc, argv);
1429 if (job_files > 0) {
1430 for (i = 0; i < job_files; i++) {
1431 if (fill_def_thread())
1434 if (fio_clients_send_ini(ini_file[i]))
1437 } else if (!is_backend) {
1438 if (parse_jobs_ini(ini_file[i], 0, i))
1446 options_mem_free(&def_thread);
1448 if (!thread_number) {
1453 if (is_backend || nr_clients)
1456 if (job_files > 0) {
1457 log_err("No jobs(s) defined\n\n");
1463 if (def_thread.o.gtod_offload) {
1465 fio_gtod_offload = 1;
1466 fio_gtod_cpu = def_thread.o.gtod_cpu;
1469 log_info("%s\n", fio_version_string);