2 * fio - the flexible io tester
4 * Copyright (C) 2005 Jens Axboe <axboe@suse.de>
5 * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk>
7 * The license below covers all files distributed with fio unless otherwise
8 * noted in the file itself.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
40 unsigned long page_mask;
41 unsigned long page_size;
43 (char *) (((unsigned long) (buf) + page_mask) & ~page_mask)
46 int thread_number = 0;
52 static struct fio_sem *startup_sem;
53 static volatile int fio_abort;
54 static int exit_value;
56 struct io_log *agg_io_log[2];
58 #define TERMINATE_ALL (-1)
59 #define JOB_START_TIMEOUT (5 * 1000)
61 static inline void td_set_runstate(struct thread_data *td, int runstate)
63 dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", td->pid, td->runstate,
65 td->runstate = runstate;
68 static void terminate_threads(int group_id)
70 struct thread_data *td;
74 if (group_id == TERMINATE_ALL || groupid == td->groupid) {
75 dprint(FD_PROCESS, "setting terminate on %d\n",td->pid);
77 * if the thread is running, just let it exit
79 if (td->runstate < TD_RUNNING)
80 kill(td->pid, SIGQUIT);
82 td->o.start_delay = 0;
87 static void sig_handler(int sig)
92 disk_util_timer_arm();
93 print_thread_status();
96 printf("\nfio: terminating on signal %d\n", sig);
98 terminate_threads(TERMINATE_ALL);
104 * Check if we are above the minimum rate given.
106 static int check_min_rate(struct thread_data *td, struct timeval *now)
108 unsigned long long bytes = 0;
109 unsigned long iops = 0;
114 * No minimum rate set, always ok
116 if (!td->o.ratemin && !td->o.rate_iops_min)
120 * allow a 2 second settle period in the beginning
122 if (mtime_since(&td->start, now) < 2000)
126 iops += td->io_blocks[DDIR_READ];
127 bytes += td->this_io_bytes[DDIR_READ];
130 iops += td->io_blocks[DDIR_WRITE];
131 bytes += td->this_io_bytes[DDIR_WRITE];
135 * if rate blocks is set, sample is running
137 if (td->rate_bytes || td->rate_blocks) {
138 spent = mtime_since(&td->lastrate, now);
139 if (spent < td->o.ratecycle)
144 * check bandwidth specified rate
146 if (bytes < td->rate_bytes) {
147 log_err("%s: min rate %u not met\n", td->o.name, td->o.ratemin);
150 rate = (bytes - td->rate_bytes) / spent;
151 if (rate < td->o.ratemin || bytes < td->rate_bytes) {
152 log_err("%s: min rate %u not met, got %luKiB/sec\n", td->o.name, td->o.ratemin, rate);
158 * checks iops specified rate
160 if (iops < td->o.rate_iops) {
161 log_err("%s: min iops rate %u not met\n", td->o.name, td->o.rate_iops);
164 rate = (iops - td->rate_blocks) / spent;
165 if (rate < td->o.rate_iops_min || iops < td->rate_blocks) {
166 log_err("%s: min iops rate %u not met, got %lu\n", td->o.name, td->o.rate_iops_min, rate);
172 td->rate_bytes = bytes;
173 td->rate_blocks = iops;
174 memcpy(&td->lastrate, now, sizeof(*now));
178 static inline int runtime_exceeded(struct thread_data *td, struct timeval *t)
182 if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000)
189 * When job exits, we can cancel the in-flight IO if we are using async
190 * io. Attempt to do so.
192 static void cleanup_pending_aio(struct thread_data *td)
194 struct list_head *entry, *n;
199 * get immediately available events, if any
201 r = io_u_queued_complete(td, 0);
206 * now cancel remaining active events
208 if (td->io_ops->cancel) {
209 list_for_each_safe(entry, n, &td->io_u_busylist) {
210 io_u = list_entry(entry, struct io_u, list);
213 * if the io_u isn't in flight, then that generally
214 * means someone leaked an io_u. complain but fix
215 * it up, so we don't stall here.
217 if ((io_u->flags & IO_U_F_FLIGHT) == 0) {
218 log_err("fio: non-busy IO on busy list\n");
221 r = td->io_ops->cancel(td, io_u);
229 r = io_u_queued_complete(td, td->cur_depth);
233 * Helper to handle the final sync of a file. Works just like the normal
234 * io path, just does everything sync.
236 static int fio_io_sync(struct thread_data *td, struct fio_file *f)
238 struct io_u *io_u = __get_io_u(td);
244 io_u->ddir = DDIR_SYNC;
247 if (td_io_prep(td, io_u)) {
253 ret = td_io_queue(td, io_u);
255 td_verror(td, io_u->error, "td_io_queue");
258 } else if (ret == FIO_Q_QUEUED) {
259 if (io_u_queued_complete(td, 1) < 0)
261 } else if (ret == FIO_Q_COMPLETED) {
263 td_verror(td, io_u->error, "td_io_queue");
267 if (io_u_sync_complete(td, io_u) < 0)
269 } else if (ret == FIO_Q_BUSY) {
270 if (td_io_commit(td))
279 * The main verify engine. Runs over the writes we previously submitted,
280 * reads the blocks back in, and checks the crc/md5 of the data.
282 static void do_verify(struct thread_data *td)
290 * sync io first and invalidate cache, to make sure we really
293 for_each_file(td, f, i) {
294 if (!(f->flags & FIO_FILE_OPEN))
296 if (fio_io_sync(td, f))
298 if (file_invalidate_cache(td, f))
305 td_set_runstate(td, TD_VERIFYING);
308 while (!td->terminate) {
311 io_u = __get_io_u(td);
315 if (runtime_exceeded(td, &io_u->start_time)) {
321 if (get_next_verify(td, io_u)) {
326 if (td_io_prep(td, io_u)) {
331 io_u->end_io = verify_io_u;
333 ret = td_io_queue(td, io_u);
335 case FIO_Q_COMPLETED:
338 else if (io_u->resid) {
339 int bytes = io_u->xfer_buflen - io_u->resid;
340 struct fio_file *f = io_u->file;
346 td_verror(td, ENODATA, "full resid");
351 io_u->xfer_buflen = io_u->resid;
352 io_u->xfer_buf += bytes;
353 io_u->offset += bytes;
354 f->last_completed_pos = io_u->offset;
356 td->ts.short_io_u[io_u->ddir]++;
358 if (io_u->offset == f->real_file_size)
361 requeue_io_u(td, &io_u);
364 ret = io_u_sync_complete(td, io_u);
372 requeue_io_u(td, &io_u);
373 ret2 = td_io_commit(td);
379 td_verror(td, -ret, "td_io_queue");
383 if (ret < 0 || td->error)
387 * if we can queue more, do so. but check if there are
388 * completed io_u's first.
391 if (queue_full(td) || ret == FIO_Q_BUSY) {
394 if (td->cur_depth > td->o.iodepth_low)
395 min_events = td->cur_depth - td->o.iodepth_low;
399 * Reap required number of io units, if any, and do the
400 * verification on them through the callback handler
402 if (io_u_queued_complete(td, min_events) < 0)
407 min_events = td->cur_depth;
410 ret = io_u_queued_complete(td, min_events);
412 cleanup_pending_aio(td);
414 td_set_runstate(td, TD_RUNNING);
418 * Main IO worker function. It retrieves io_u's to process and queues
419 * and reaps them, checking for rate and errors along the way.
421 static void do_io(struct thread_data *td)
428 td_set_runstate(td, TD_RUNNING);
430 while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) {
431 struct timeval comp_time;
444 memcpy(&s, &io_u->start_time, sizeof(s));
446 if (runtime_exceeded(td, &s)) {
453 * Add verification end_io handler, if asked to verify
454 * a previously written file.
456 if (td->o.verify != VERIFY_NONE)
457 io_u->end_io = verify_io_u;
459 ret = td_io_queue(td, io_u);
461 case FIO_Q_COMPLETED:
464 else if (io_u->resid) {
465 int bytes = io_u->xfer_buflen - io_u->resid;
466 struct fio_file *f = io_u->file;
472 td_verror(td, ENODATA, "full resid");
477 io_u->xfer_buflen = io_u->resid;
478 io_u->xfer_buf += bytes;
479 io_u->offset += bytes;
480 f->last_completed_pos = io_u->offset;
482 td->ts.short_io_u[io_u->ddir]++;
484 if (io_u->offset == f->real_file_size)
487 requeue_io_u(td, &io_u);
490 fio_gettime(&comp_time, NULL);
491 bytes_done = io_u_sync_complete(td, io_u);
498 * if the engine doesn't have a commit hook,
499 * the io_u is really queued. if it does have such
500 * a hook, it has to call io_u_queued() itself.
502 if (td->io_ops->commit == NULL)
503 io_u_queued(td, io_u);
506 requeue_io_u(td, &io_u);
507 ret2 = td_io_commit(td);
517 if (ret < 0 || td->error)
521 * See if we need to complete some commands
523 if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) {
525 if (queue_full(td) || ret == FIO_Q_BUSY) {
528 if (td->cur_depth > td->o.iodepth_low)
529 min_evts = td->cur_depth - td->o.iodepth_low;
532 fio_gettime(&comp_time, NULL);
533 bytes_done = io_u_queued_complete(td, min_evts);
542 * the rate is batched for now, it should work for batches
543 * of completions except the very first one which may look
546 usec = utime_since(&s, &comp_time);
548 rate_throttle(td, usec, bytes_done);
550 if (check_min_rate(td, &comp_time)) {
551 if (exitall_on_terminate)
552 terminate_threads(td->groupid);
553 td_verror(td, ENODATA, "check_min_rate");
557 if (td->o.thinktime) {
558 unsigned long long b;
560 b = td->io_blocks[0] + td->io_blocks[1];
561 if (!(b % td->o.thinktime_blocks)) {
564 if (td->o.thinktime_spin)
565 __usec_sleep(td->o.thinktime_spin);
567 left = td->o.thinktime - td->o.thinktime_spin;
569 usec_sleep(td, left);
574 if (td->o.fill_device && td->error == ENOSPC) {
583 ret = io_u_queued_complete(td, i);
585 if (should_fsync(td) && td->o.end_fsync) {
586 td_set_runstate(td, TD_FSYNCING);
588 for_each_file(td, f, i) {
589 if (!(f->flags & FIO_FILE_OPEN))
595 cleanup_pending_aio(td);
598 * stop job if we failed doing any IO
600 if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0)
604 static void cleanup_io_u(struct thread_data *td)
606 struct list_head *entry, *n;
609 list_for_each_safe(entry, n, &td->io_u_freelist) {
610 io_u = list_entry(entry, struct io_u, list);
612 list_del(&io_u->list);
620 * "randomly" fill the buffer contents
622 static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs)
624 long *ptr = io_u->buf;
626 if (!td->o.zero_buffers) {
627 while ((void *) ptr - io_u->buf < max_bs) {
628 *ptr = rand() * GOLDEN_RATIO_PRIME;
632 memset(ptr, 0, max_bs);
635 static int init_io_u(struct thread_data *td)
642 max_units = td->o.iodepth;
643 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
644 td->orig_buffer_size = (unsigned long long) max_bs * (unsigned long long) max_units;
646 if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE)
647 td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1);
649 if (td->orig_buffer_size != (size_t) td->orig_buffer_size) {
650 log_err("fio: IO memory too large. Reduce max_bs or iodepth\n");
654 if (allocate_io_mem(td))
658 p = ALIGN(td->orig_buffer);
662 for (i = 0; i < max_units; i++) {
665 io_u = malloc(sizeof(*io_u));
666 memset(io_u, 0, sizeof(*io_u));
667 INIT_LIST_HEAD(&io_u->list);
669 if (!(td->io_ops->flags & FIO_NOIO)) {
670 io_u->buf = p + max_bs * i;
673 fill_io_buf(td, io_u, max_bs);
677 io_u->flags = IO_U_F_FREE;
678 list_add(&io_u->list, &td->io_u_freelist);
686 static int switch_ioscheduler(struct thread_data *td)
688 char tmp[256], tmp2[128];
692 if (td->io_ops->flags & FIO_DISKLESSIO)
695 sprintf(tmp, "%s/queue/scheduler", td->sysfs_root);
697 f = fopen(tmp, "r+");
699 if (errno == ENOENT) {
700 log_err("fio: os or kernel doesn't support IO scheduler switching\n");
703 td_verror(td, errno, "fopen iosched");
710 ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f);
711 if (ferror(f) || ret != 1) {
712 td_verror(td, errno, "fwrite");
720 * Read back and check that the selected scheduler is now the default.
722 ret = fread(tmp, 1, sizeof(tmp), f);
723 if (ferror(f) || ret < 0) {
724 td_verror(td, errno, "fread");
729 sprintf(tmp2, "[%s]", td->o.ioscheduler);
730 if (!strstr(tmp, tmp2)) {
731 log_err("fio: io scheduler %s not found\n", td->o.ioscheduler);
732 td_verror(td, EINVAL, "iosched_switch");
741 static int keep_running(struct thread_data *td)
743 unsigned long long io_done;
747 if (td->o.time_based)
754 io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] + td->io_skip_bytes;
755 if (io_done < td->o.size)
761 static int clear_io_state(struct thread_data *td)
767 td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0;
768 td->this_io_bytes[0] = td->this_io_bytes[1] = 0;
772 td->rw_end_set[0] = td->rw_end_set[1] = 0;
774 td->last_was_sync = 0;
777 * reset file done count if we are to start over
779 if (td->o.time_based || td->o.loops)
780 td->nr_done_files = 0;
782 for_each_file(td, f, i)
783 td_io_close_file(td, f);
786 for_each_file(td, f, i) {
787 f->flags &= ~FIO_FILE_DONE;
788 ret = td_io_open_file(td, f);
797 * Entry point for the thread based jobs. The process based jobs end up
798 * here as well, after a little setup.
800 static void *thread_main(void *data)
802 unsigned long long runtime[2], elapsed;
803 struct thread_data *td = data;
806 if (!td->o.use_thread)
811 dprint(FD_PROCESS, "jobs pid=%d started\n", td->pid);
813 INIT_LIST_HEAD(&td->io_u_freelist);
814 INIT_LIST_HEAD(&td->io_u_busylist);
815 INIT_LIST_HEAD(&td->io_u_requeues);
816 INIT_LIST_HEAD(&td->io_log_list);
817 INIT_LIST_HEAD(&td->io_hist_list);
818 td->io_hist_tree = RB_ROOT;
820 td_set_runstate(td, TD_INITIALIZED);
821 fio_sem_up(startup_sem);
822 fio_sem_down(td->mutex);
825 * the ->mutex semaphore is now no longer used, close it to avoid
826 * eating a file descriptor
828 fio_sem_remove(td->mutex);
831 * May alter parameters that init_io_u() will use, so we need to
840 if (td->o.cpumask_set && fio_setaffinity(td) == -1) {
841 td_verror(td, errno, "cpu_set_affinity");
845 if (td->ioprio_set) {
846 if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) {
847 td_verror(td, errno, "ioprio_set");
852 if (nice(td->o.nice) == -1) {
853 td_verror(td, errno, "nice");
857 if (td->o.ioscheduler && switch_ioscheduler(td))
860 if (!td->o.create_serialize && setup_files(td))
869 if (init_random_map(td))
872 if (td->o.exec_prerun) {
873 if (system(td->o.exec_prerun) < 0)
877 fio_gettime(&td->epoch, NULL);
878 memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch));
879 getrusage(RUSAGE_SELF, &td->ts.ru_start);
881 runtime[0] = runtime[1] = 0;
883 while (keep_running(td)) {
884 fio_gettime(&td->start, NULL);
885 memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start));
888 memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate));
890 if (clear_state && clear_io_state(td))
893 prune_io_piece_log(td);
899 if (td_read(td) && td->io_bytes[DDIR_READ]) {
900 if (td->rw_end_set[DDIR_READ])
901 elapsed = utime_since(&td->start, &td->rw_end[DDIR_READ]);
903 elapsed = utime_since_now(&td->start);
905 runtime[DDIR_READ] += elapsed;
907 if (td_write(td) && td->io_bytes[DDIR_WRITE]) {
908 if (td->rw_end_set[DDIR_WRITE])
909 elapsed = utime_since(&td->start, &td->rw_end[DDIR_WRITE]);
911 elapsed = utime_since_now(&td->start);
913 runtime[DDIR_WRITE] += elapsed;
916 if (td->error || td->terminate)
919 if (!td->o.do_verify ||
920 td->o.verify == VERIFY_NONE ||
921 (td->io_ops->flags & FIO_UNIDIR))
924 if (clear_io_state(td))
927 fio_gettime(&td->start, NULL);
931 runtime[DDIR_READ] += utime_since_now(&td->start);
933 if (td->error || td->terminate)
937 update_rusage_stat(td);
938 td->ts.runtime[0] = (runtime[0] + 999) / 1000;
939 td->ts.runtime[1] = (runtime[1] + 999) / 1000;
940 td->ts.total_run_time = mtime_since_now(&td->epoch);
941 td->ts.io_bytes[0] = td->io_bytes[0];
942 td->ts.io_bytes[1] = td->io_bytes[1];
945 finish_log(td, td->ts.bw_log, "bw");
947 finish_log(td, td->ts.slat_log, "slat");
949 finish_log(td, td->ts.clat_log, "clat");
950 if (td->o.exec_postrun) {
951 if (system(td->o.exec_postrun) < 0)
952 log_err("fio: postrun %s failed\n", td->o.exec_postrun);
955 if (exitall_on_terminate)
956 terminate_threads(td->groupid);
960 printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror);
966 * do this very late, it will log file closing as well
968 if (td->o.write_iolog_file)
969 write_iolog_close(td);
971 options_mem_free(td);
972 td_set_runstate(td, TD_EXITED);
973 return (void *) (unsigned long) td->error;
977 * We cannot pass the td data into a forked process, so attach the td and
978 * pass it to the thread worker.
980 static int fork_main(int shmid, int offset)
982 struct thread_data *td;
985 data = shmat(shmid, NULL, 0);
986 if (data == (void *) -1) {
993 td = data + offset * sizeof(struct thread_data);
994 ret = thread_main(td);
996 return (int) (unsigned long) ret;
1000 * Run over the job map and reap the threads that have exited, if any.
1002 static void reap_threads(int *nr_running, int *t_rate, int *m_rate)
1004 struct thread_data *td;
1005 int i, cputhreads, realthreads, pending, status, ret;
1008 * reap exited threads (TD_EXITED -> TD_REAPED)
1010 realthreads = pending = cputhreads = 0;
1011 for_each_td(td, i) {
1015 * ->io_ops is NULL for a thread that has closed its
1018 if (td->io_ops && !strcmp(td->io_ops->name, "cpuio"))
1023 if (!td->pid || td->runstate == TD_REAPED)
1025 if (td->o.use_thread) {
1026 if (td->runstate == TD_EXITED) {
1027 td_set_runstate(td, TD_REAPED);
1034 if (td->runstate == TD_EXITED)
1038 * check if someone quit or got killed in an unusual way
1040 ret = waitpid(td->pid, &status, flags);
1042 if (errno == ECHILD) {
1043 log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate);
1044 td_set_runstate(td, TD_REAPED);
1048 } else if (ret == td->pid) {
1049 if (WIFSIGNALED(status)) {
1050 int sig = WTERMSIG(status);
1053 log_err("fio: pid=%d, got signal=%d\n", td->pid, sig);
1054 td_set_runstate(td, TD_REAPED);
1057 if (WIFEXITED(status)) {
1058 if (WEXITSTATUS(status) && !td->error)
1059 td->error = WEXITSTATUS(status);
1061 td_set_runstate(td, TD_REAPED);
1067 * thread is not dead, continue
1072 if (td->o.use_thread) {
1075 dprint(FD_PROCESS, "joining tread %d\n", td->pid);
1076 if (pthread_join(td->thread, (void *) &ret)) {
1077 dprint(FD_PROCESS, "join failed %ld\n", ret);
1078 perror("pthread_join");
1083 (*m_rate) -= td->o.ratemin;
1084 (*t_rate) -= td->o.rate;
1091 if (*nr_running == cputhreads && !pending && realthreads)
1092 terminate_threads(TERMINATE_ALL);
1096 * Main function for kicking off and reaping jobs, as needed.
1098 static void run_threads(void)
1100 struct thread_data *td;
1101 unsigned long spent;
1102 int i, todo, nr_running, m_rate, t_rate, nr_started;
1104 if (fio_pin_memory())
1107 if (!terse_output) {
1108 printf("Starting ");
1110 printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : "");
1114 printf("%d process%s", nr_process, nr_process > 1 ? "es" : "");
1120 signal(SIGINT, sig_handler);
1121 signal(SIGALRM, sig_handler);
1123 todo = thread_number;
1126 m_rate = t_rate = 0;
1128 for_each_td(td, i) {
1129 print_status_init(td->thread_number - 1);
1131 if (!td->o.create_serialize) {
1137 * do file setup here so it happens sequentially,
1138 * we don't want X number of threads getting their
1139 * client data interspersed on disk
1141 if (setup_files(td)) {
1144 log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror);
1145 td_set_runstate(td, TD_REAPED);
1155 struct thread_data *map[MAX_JOBS];
1156 struct timeval this_start;
1157 int this_jobs = 0, left;
1160 * create threads (TD_NOT_CREATED -> TD_CREATED)
1162 for_each_td(td, i) {
1163 if (td->runstate != TD_NOT_CREATED)
1167 * never got a chance to start, killed by other
1168 * thread for some reason
1170 if (td->terminate) {
1175 if (td->o.start_delay) {
1176 spent = mtime_since_genesis();
1178 if (td->o.start_delay * 1000 > spent)
1182 if (td->o.stonewall && (nr_started || nr_running))
1186 * Set state to created. Thread will transition
1187 * to TD_INITIALIZED when it's done setting up.
1189 td_set_runstate(td, TD_CREATED);
1190 map[this_jobs++] = td;
1193 if (td->o.use_thread) {
1194 dprint(FD_PROCESS, "will pthread_create\n");
1195 if (pthread_create(&td->thread, NULL, thread_main, td)) {
1196 perror("thread_create");
1201 dprint(FD_PROCESS, "will fork\n");
1203 int ret = fork_main(shm_id, i);
1208 fio_sem_down(startup_sem);
1212 * Wait for the started threads to transition to
1215 fio_gettime(&this_start, NULL);
1217 while (left && !fio_abort) {
1218 if (mtime_since_now(&this_start) > JOB_START_TIMEOUT)
1223 for (i = 0; i < this_jobs; i++) {
1227 if (td->runstate == TD_INITIALIZED) {
1230 } else if (td->runstate >= TD_EXITED) {
1234 nr_running++; /* work-around... */
1240 log_err("fio: %d jobs failed to start\n", left);
1241 for (i = 0; i < this_jobs; i++) {
1245 kill(td->pid, SIGTERM);
1251 * start created threads (TD_INITIALIZED -> TD_RUNNING).
1253 for_each_td(td, i) {
1254 if (td->runstate != TD_INITIALIZED)
1257 td_set_runstate(td, TD_RUNNING);
1260 m_rate += td->o.ratemin;
1261 t_rate += td->o.rate;
1263 fio_sem_up(td->mutex);
1266 reap_threads(&nr_running, &t_rate, &m_rate);
1272 while (nr_running) {
1273 reap_threads(&nr_running, &t_rate, &m_rate);
1281 int main(int argc, char *argv[])
1286 * We need locale for number printing, if it isn't set then just
1287 * go with the US format.
1289 if (!getenv("LC_NUMERIC"))
1290 setlocale(LC_NUMERIC, "en_US");
1292 if (parse_options(argc, argv))
1298 ps = sysconf(_SC_PAGESIZE);
1300 log_err("Failed to get page size\n");
1308 setup_log(&agg_io_log[DDIR_READ]);
1309 setup_log(&agg_io_log[DDIR_WRITE]);
1312 startup_sem = fio_sem_init(0);
1316 disk_util_timer_arm();
1323 __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log");
1324 __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log");
1328 fio_sem_remove(startup_sem);