* fio - the flexible io tester
*
* Copyright (C) 2005 Jens Axboe <axboe@suse.de>
- * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk>
+ * Copyright (C) 2006
-2012 Jens Axboe <axboe@kernel.dk>
*
* The license below covers all files distributed with fio unless otherwise
* noted in the file itself.
*
*/
#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <signal.h>
+#include <locale.h>
#include <time.h>
-#include <assert.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
#include "fio.h"
-#include "os.h"
-
-static unsigned long page_mask;
-#define ALIGN(buf) \
- (char *) (((unsigned long) (buf) + page_mask) & ~page_mask)
-
-int groupid = 0;
-int thread_number = 0;
-int shm_id = 0;
-int temp_stall_ts;
-
-static volatile int startup_sem;
-static volatile int fio_abort;
-
-struct io_log *agg_io_log[2];
-
-#define TERMINATE_ALL (-1)
-#define JOB_START_TIMEOUT (5 * 1000)
-
-static inline void td_set_runstate(struct thread_data *td, int runstate)
-{
- td->runstate = runstate;
-}
-
-static void terminate_threads(int group_id, int forced_kill)
-{
- struct thread_data *td;
- int i;
-
- for_each_td(td, i) {
- if (group_id == TERMINATE_ALL || groupid == td->groupid) {
- td->terminate = 1;
- td->start_delay = 0;
- if (forced_kill)
- td_set_runstate(td, TD_EXITED);
- }
- }
-}
-
-static void sig_handler(int sig)
-{
- switch (sig) {
- case SIGALRM:
- update_io_ticks();
- disk_util_timer_arm();
- print_thread_status();
- break;
- case SIGSEGV:
- fprintf(stderr, "fio: got segfault, aborting\n");
- terminate_threads(TERMINATE_ALL, 1);
- fio_abort = 1;
- exit(0);
- default:
- printf("\nfio: terminating on signal %d\n", sig);
- fflush(stdout);
- terminate_threads(TERMINATE_ALL, 0);
- break;
- }
-}
-
-/*
- * Check if we are above the minimum rate given.
- */
-static int check_min_rate(struct thread_data *td, struct timeval *now)
-{
- unsigned long spent;
- unsigned long rate;
- int ddir = td->ddir;
-
- /*
- * allow a 2 second settle period in the beginning
- */
- if (mtime_since(&td->start, now) < 2000)
- return 0;
-
- /*
- * if rate blocks is set, sample is running
- */
- if (td->rate_bytes) {
- spent = mtime_since(&td->lastrate, now);
- if (spent < td->ratecycle)
- return 0;
-
- rate = (td->this_io_bytes[ddir] - td->rate_bytes) / spent;
- if (rate < td->ratemin) {
- fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate);
- return 1;
- }
- }
-
- td->rate_bytes = td->this_io_bytes[ddir];
- memcpy(&td->lastrate, now, sizeof(*now));
- return 0;
-}
-
-static inline int runtime_exceeded(struct thread_data *td, struct timeval *t)
-{
- if (!td->timeout)
- return 0;
- if (mtime_since(&td->epoch, t) >= td->timeout * 1000)
- return 1;
-
- return 0;
-}
-
-static struct fio_file *get_next_file(struct thread_data *td)
-{
- unsigned int old_next_file = td->next_file;
- struct fio_file *f;
-
- do {
- f = &td->files[td->next_file];
-
- td->next_file++;
- if (td->next_file >= td->nr_files)
- td->next_file = 0;
-
- if (f->fd != -1)
- break;
-
- f = NULL;
- } while (td->next_file != old_next_file);
-
- return f;
-}
-
-/*
- * When job exits, we can cancel the in-flight IO if we are using async
- * io. Attempt to do so.
- */
-static void cleanup_pending_aio(struct thread_data *td)
-{
- struct timespec ts = { .tv_sec = 0, .tv_nsec = 0};
- struct list_head *entry, *n;
- struct io_completion_data icd;
- struct io_u *io_u;
- int r;
-
- /*
- * get immediately available events, if any
- */
- r = td_io_getevents(td, 0, td->cur_depth, &ts);
- if (r > 0) {
- icd.nr = r;
- ios_completed(td, &icd);
- }
-
- /*
- * now cancel remaining active events
- */
- if (td->io_ops->cancel) {
- list_for_each_safe(entry, n, &td->io_u_busylist) {
- io_u = list_entry(entry, struct io_u, list);
-
- r = td->io_ops->cancel(td, io_u);
- if (!r)
- put_io_u(td, io_u);
- }
- }
-
- if (td->cur_depth) {
- r = td_io_getevents(td, td->cur_depth, td->cur_depth, NULL);
- if (r > 0) {
- icd.nr = r;
- ios_completed(td, &icd);
- }
- }
-}
-
-/*
- * Helper to handle the final sync of a file. Works just like the normal
- * io path, just does everything sync.
- */
-static int fio_io_sync(struct thread_data *td, struct fio_file *f)
-{
- struct io_u *io_u = __get_io_u(td);
- struct io_completion_data icd;
- int ret;
-
- if (!io_u)
- return 1;
-
- io_u->ddir = DDIR_SYNC;
- io_u->file = f;
-
- if (td_io_prep(td, io_u)) {
- put_io_u(td, io_u);
- return 1;
- }
-
- ret = td_io_queue(td, io_u);
- if (ret) {
- td_verror(td, io_u->error);
- put_io_u(td, io_u);
- return 1;
- }
-
- ret = td_io_getevents(td, 1, td->cur_depth, NULL);
- if (ret < 0) {
- td_verror(td, ret);
- return 1;
- }
-
- icd.nr = ret;
- ios_completed(td, &icd);
- if (icd.error) {
- td_verror(td, icd.error);
- return 1;
- }
-
- return 0;
-}
-
-/*
- * The main verify engine. Runs over the writes we previusly submitted,
- * reads the blocks back in, and checks the crc/md5 of the data.
- */
-static void do_verify(struct thread_data *td)
-{
- struct io_u *io_u, *v_io_u = NULL;
- struct io_completion_data icd;
- struct fio_file *f;
- int ret, i;
-
- /*
- * sync io first and invalidate cache, to make sure we really
- * read from disk.
- */
- for_each_file(td, f, i) {
- fio_io_sync(td, f);
- file_invalidate_cache(td, f);
- }
-
- td_set_runstate(td, TD_VERIFYING);
-
- do {
- if (td->terminate)
- break;
-
- io_u = __get_io_u(td);
- if (!io_u)
- break;
-
- if (runtime_exceeded(td, &io_u->start_time)) {
- put_io_u(td, io_u);
- break;
- }
-
- if (get_next_verify(td, io_u)) {
- put_io_u(td, io_u);
- break;
- }
-
- f = get_next_file(td);
- if (!f)
- break;
-
- io_u->file = f;
-
- if (td_io_prep(td, io_u)) {
- put_io_u(td, io_u);
- break;
- }
-
- ret = td_io_queue(td, io_u);
- if (ret) {
- td_verror(td, io_u->error);
- put_io_u(td, io_u);
- break;
- }
-
- /*
- * we have one pending to verify, do that while
- * we are doing io on the next one
- */
- if (do_io_u_verify(td, &v_io_u))
- break;
-
- ret = td_io_getevents(td, 1, 1, NULL);
- if (ret != 1) {
- if (ret < 0)
- td_verror(td, ret);
- break;
- }
-
- v_io_u = td->io_ops->event(td, 0);
- icd.nr = 1;
- icd.error = 0;
- fio_gettime(&icd.time, NULL);
- io_completed(td, v_io_u, &icd);
-
- if (icd.error) {
- td_verror(td, icd.error);
- put_io_u(td, v_io_u);
- v_io_u = NULL;
- break;
- }
-
- /*
- * if we can't submit more io, we need to verify now
- */
- if (queue_full(td) && do_io_u_verify(td, &v_io_u))
- break;
-
- } while (1);
-
- do_io_u_verify(td, &v_io_u);
-
- if (td->cur_depth)
- cleanup_pending_aio(td);
-
- td_set_runstate(td, TD_RUNNING);
-}
-
-/*
- * Not really an io thread, all it does is burn CPU cycles in the specified
- * manner.
- */
-static void do_cpuio(struct thread_data *td)
-{
- struct timeval e;
- int split = 100 / td->cpuload;
- int i = 0;
-
- while (!td->terminate) {
- fio_gettime(&e, NULL);
-
- if (runtime_exceeded(td, &e))
- break;
-
- if (!(i % split))
- __usec_sleep(10000);
- else
- usec_sleep(td, 10000);
-
- i++;
- }
-}
-
-/*
- * Main IO worker function. It retrieves io_u's to process and queues
- * and reaps them, checking for rate and errors along the way.
- */
-static void do_io(struct thread_data *td)
-{
- struct io_completion_data icd;
- struct timeval s;
- unsigned long usec;
- struct fio_file *f;
- int i, ret = 0;
-
- td_set_runstate(td, TD_RUNNING);
-
- while (td->this_io_bytes[td->ddir] < td->io_size) {
- struct timespec *timeout;
- int min_evts = 0;
- struct io_u *io_u;
-
- if (td->terminate)
- break;
-
- f = get_next_file(td);
- if (!f)
- break;
-
- io_u = get_io_u(td, f);
- if (!io_u)
- break;
-
- memcpy(&s, &io_u->start_time, sizeof(s));
-
- ret = td_io_queue(td, io_u);
- if (ret) {
- td_verror(td, io_u->error);
- put_io_u(td, io_u);
- break;
- }
-
- add_slat_sample(td, io_u->ddir, mtime_since(&io_u->start_time, &io_u->issue_time));
-
- if (td->cur_depth < td->iodepth) {
- struct timespec ts = { .tv_sec = 0, .tv_nsec = 0};
-
- timeout = &ts;
- min_evts = 0;
- } else {
- timeout = NULL;
- min_evts = 1;
- }
-
- ret = td_io_getevents(td, min_evts, td->cur_depth, timeout);
- if (ret < 0) {
- td_verror(td, ret);
- break;
- } else if (!ret)
- continue;
-
- icd.nr = ret;
- ios_completed(td, &icd);
- if (icd.error) {
- td_verror(td, icd.error);
- break;
- }
-
- /*
- * the rate is batched for now, it should work for batches
- * of completions except the very first one which may look
- * a little bursty
- */
- usec = utime_since(&s, &icd.time);
-
- rate_throttle(td, usec, icd.bytes_done[td->ddir], td->ddir);
-
- if (check_min_rate(td, &icd.time)) {
- if (exitall_on_terminate)
- terminate_threads(td->groupid, 0);
- td_verror(td, ENODATA);
- break;
- }
-
- if (runtime_exceeded(td, &icd.time))
- break;
-
- if (td->thinktime) {
- unsigned long long b;
-
- b = td->io_blocks[0] + td->io_blocks[1];
- if (!(b % td->thinktime_blocks))
- usec_sleep(td, td->thinktime);
- }
- }
-
- if (!td->error) {
- if (td->cur_depth)
- cleanup_pending_aio(td);
-
- if (should_fsync(td) && td->end_fsync) {
- td_set_runstate(td, TD_FSYNCING);
- for_each_file(td, f, i)
- fio_io_sync(td, f);
- }
- }
-}
-
-static void cleanup_io_u(struct thread_data *td)
-{
- struct list_head *entry, *n;
- struct io_u *io_u;
-
- list_for_each_safe(entry, n, &td->io_u_freelist) {
- io_u = list_entry(entry, struct io_u, list);
-
- list_del(&io_u->list);
- free(io_u);
- }
-
- free_io_mem(td);
-}
-
-/*
- * "randomly" fill the buffer contents
- */
-static void fill_rand_buf(struct io_u *io_u, int max_bs)
-{
- int *ptr = io_u->buf;
-
- while ((void *) ptr - io_u->buf < max_bs) {
- *ptr = rand() * 0x9e370001;
- ptr++;
- }
-}
-
-static int init_io_u(struct thread_data *td)
-{
- struct io_u *io_u;
- unsigned int max_bs;
- int i, max_units;
- char *p;
-
- if (td->io_ops->flags & FIO_CPUIO)
- return 0;
-
- if (td->io_ops->flags & FIO_SYNCIO)
- max_units = 1;
- else
- max_units = td->iodepth;
-
- max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]);
- td->orig_buffer_size = max_bs * max_units;
-
- if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE)
- td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1);
- else
- td->orig_buffer_size += page_mask;
-
- if (allocate_io_mem(td))
- return 1;
-
- p = ALIGN(td->orig_buffer);
- for (i = 0; i < max_units; i++) {
- io_u = malloc(sizeof(*io_u));
- memset(io_u, 0, sizeof(*io_u));
- INIT_LIST_HEAD(&io_u->list);
-
- io_u->buf = p + max_bs * i;
- if (td_write(td) || td_rw(td))
- fill_rand_buf(io_u, max_bs);
-
- io_u->index = i;
- list_add(&io_u->list, &td->io_u_freelist);
- }
-
- return 0;
-}
-
-static int switch_ioscheduler(struct thread_data *td)
+#include "hash.h"
+#include "smalloc.h"
+#include "verify.h"
+#include "trim.h"
+#include "diskutil.h"
+#include "profile.h"
+#include "lib/rand.h"
+#include "memalign.h"
+#include "client.h"
+#include "server.h"
+#include "endian_check.h"
+
+unsigned long page_mask;
+unsigned long page_size;
+
+int main(int argc, char *argv[], char *envp[])
{
- char tmp[256], tmp2[128];
- FILE *f;
- int ret;
-
- if (td->io_ops->flags & FIO_CPUIO)
- return 0;
-
- sprintf(tmp, "%s/queue/scheduler", td->sysfs_root);
+ long ps;
- f = fopen(tmp, "r+");
- if (!f) {
- td_verror(td, errno);
+ if (endian_check()) {
+ log_err("fio: endianness settings appear wrong.\n");
+ log_err("fio: please report this to fio@vger.kernel.org\n");
return 1;
}
- /*
- * Set io scheduler.
- */
- ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f);
- if (ferror(f) || ret != 1) {
- td_verror(td, errno);
- fclose(f);
- return 1;
- }
+ arch_init(envp);
- rewind(f);
+ sinit();
/*
- * Read back and check that the selected scheduler is now the default.
+ * We need locale for number printing, if it isn't set then just
+ * go with the US format.
*/
- ret = fread(tmp, 1, sizeof(tmp), f);
- if (ferror(f) || ret < 0) {
- td_verror(td, errno);
- fclose(f);
- return 1;
- }
-
- sprintf(tmp2, "[%s]", td->ioscheduler);
- if (!strstr(tmp, tmp2)) {
- log_err("fio: io scheduler %s not found\n", td->ioscheduler);
- td_verror(td, EINVAL);
- fclose(f);
- return 1;
- }
-
- fclose(f);
- return 0;
-}
-
-static void clear_io_state(struct thread_data *td)
-{
- struct fio_file *f;
- int i;
-
- td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0;
- td->this_io_bytes[0] = td->this_io_bytes[1] = 0;
- td->zone_bytes = 0;
-
- for_each_file(td, f, i) {
- f->last_pos = 0;
- if (td->io_ops->flags & FIO_SYNCIO)
- lseek(f->fd, SEEK_SET, 0);
-
- if (f->file_map)
- memset(f->file_map, 0, f->num_maps * sizeof(long));
- }
-}
-
-/*
- * Entry point for the thread based jobs. The process based jobs end up
- * here as well, after a little setup.
- */
-static void *thread_main(void *data)
-{
- unsigned long long runtime[2];
- struct thread_data *td = data;
-
- if (!td->use_thread)
- setsid();
-
- td->pid = getpid();
-
- INIT_LIST_HEAD(&td->io_u_freelist);
- INIT_LIST_HEAD(&td->io_u_busylist);
- INIT_LIST_HEAD(&td->io_hist_list);
- INIT_LIST_HEAD(&td->io_log_list);
-
- if (init_io_u(td))
- goto err;
-
- if (fio_setaffinity(td) == -1) {
- td_verror(td, errno);
- goto err;
- }
-
- if (init_iolog(td))
- goto err;
-
- if (td->ioprio) {
- if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) {
- td_verror(td, errno);
- goto err;
- }
- }
-
- if (nice(td->nice) == -1) {
- td_verror(td, errno);
- goto err;
- }
-
- if (init_random_state(td))
- goto err;
-
- if (td->ioscheduler && switch_ioscheduler(td))
- goto err;
-
- td_set_runstate(td, TD_INITIALIZED);
- fio_sem_up(&startup_sem);
- fio_sem_down(&td->mutex);
-
- if (!td->create_serialize && setup_files(td))
- goto err;
- if (open_files(td))
- goto err;
-
- /*
- * Do this late, as some IO engines would like to have the
- * files setup prior to initializing structures.
- */
- if (td_io_init(td))
- goto err;
-
- if (td->exec_prerun)
- system(td->exec_prerun);
-
- fio_gettime(&td->epoch, NULL);
- getrusage(RUSAGE_SELF, &td->ru_start);
-
- runtime[0] = runtime[1] = 0;
- while (td->loops--) {
- fio_gettime(&td->start, NULL);
- memcpy(&td->stat_sample_time, &td->start, sizeof(td->start));
-
- if (td->ratemin)
- memcpy(&td->lastrate, &td->stat_sample_time, sizeof(td->lastrate));
-
- clear_io_state(td);
- prune_io_piece_log(td);
-
- if (td->io_ops->flags & FIO_CPUIO)
- do_cpuio(td);
- else
- do_io(td);
-
- runtime[td->ddir] += utime_since_now(&td->start);
- if (td_rw(td) && td->io_bytes[td->ddir ^ 1])
- runtime[td->ddir ^ 1] = runtime[td->ddir];
-
- if (td->error || td->terminate)
- break;
-
- if (td->verify == VERIFY_NONE)
- continue;
-
- clear_io_state(td);
- fio_gettime(&td->start, NULL);
-
- do_verify(td);
-
- runtime[DDIR_READ] += utime_since_now(&td->start);
-
- if (td->error || td->terminate)
- break;
- }
-
- update_rusage_stat(td);
- fio_gettime(&td->end_time, NULL);
- td->runtime[0] = runtime[0] / 1000;
- td->runtime[1] = runtime[1] / 1000;
-
- if (td->bw_log)
- finish_log(td, td->bw_log, "bw");
- if (td->slat_log)
- finish_log(td, td->slat_log, "slat");
- if (td->clat_log)
- finish_log(td, td->clat_log, "clat");
- if (td->write_iolog_file)
- write_iolog_close(td);
- if (td->exec_postrun)
- system(td->exec_postrun);
-
- if (exitall_on_terminate)
- terminate_threads(td->groupid, 0);
-
-err:
- close_files(td);
- close_ioengine(td);
- cleanup_io_u(td);
- td_set_runstate(td, TD_EXITED);
- return NULL;
-
-}
-
-/*
- * We cannot pass the td data into a forked process, so attach the td and
- * pass it to the thread worker.
- */
-static void *fork_main(int shmid, int offset)
-{
- struct thread_data *td;
- void *data;
-
- data = shmat(shmid, NULL, 0);
- if (data == (void *) -1) {
- perror("shmat");
- return NULL;
- }
-
- td = data + offset * sizeof(struct thread_data);
- thread_main(td);
- shmdt(data);
- return NULL;
-}
-
-/*
- * Run over the job map and reap the threads that have exited, if any.
- */
-static void reap_threads(int *nr_running, int *t_rate, int *m_rate)
-{
- struct thread_data *td;
- int i, cputhreads, pending;
-
- /*
- * reap exited threads (TD_EXITED -> TD_REAPED)
- */
- pending = cputhreads = 0;
- for_each_td(td, i) {
- /*
- * ->io_ops is NULL for a thread that has closed its
- * io engine
- */
- if (td->io_ops && td->io_ops->flags & FIO_CPUIO)
- cputhreads++;
-
- if (td->runstate != TD_EXITED) {
- if (td->runstate < TD_RUNNING)
- pending++;
-
- continue;
- }
-
- td_set_runstate(td, TD_REAPED);
-
- if (td->use_thread) {
- long ret;
-
- if (pthread_join(td->thread, (void *) &ret))
- perror("thread_join");
- } else
- waitpid(td->pid, NULL, 0);
-
- (*nr_running)--;
- (*m_rate) -= td->ratemin;
- (*t_rate) -= td->rate;
- }
-
- if (*nr_running == cputhreads && !pending)
- terminate_threads(TERMINATE_ALL, 0);
-}
-
-/*
- * Main function for kicking off and reaping jobs, as needed.
- */
-static void run_threads(void)
-{
- struct thread_data *td;
- unsigned long spent;
- int i, todo, nr_running, m_rate, t_rate, nr_started;
-
- if (fio_pin_memory())
- return;
-
- if (!terse_output) {
- printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : "");
- fflush(stdout);
- }
-
- signal(SIGINT, sig_handler);
- signal(SIGALRM, sig_handler);
-
- todo = thread_number;
- nr_running = 0;
- nr_started = 0;
- m_rate = t_rate = 0;
-
- for_each_td(td, i) {
- print_status_init(td->thread_number - 1);
-
- if (!td->create_serialize) {
- init_disk_util(td);
- continue;
- }
-
- /*
- * do file setup here so it happens sequentially,
- * we don't want X number of threads getting their
- * client data interspersed on disk
- */
- if (setup_files(td)) {
- td_set_runstate(td, TD_REAPED);
- todo--;
- }
-
- init_disk_util(td);
- }
-
- while (todo) {
- struct thread_data *map[MAX_JOBS];
- struct timeval this_start;
- int this_jobs = 0, left;
-
- /*
- * create threads (TD_NOT_CREATED -> TD_CREATED)
- */
- for_each_td(td, i) {
- if (td->runstate != TD_NOT_CREATED)
- continue;
-
- /*
- * never got a chance to start, killed by other
- * thread for some reason
- */
- if (td->terminate) {
- todo--;
- continue;
- }
-
- if (td->start_delay) {
- spent = mtime_since_genesis();
-
- if (td->start_delay * 1000 > spent)
- continue;
- }
-
- if (td->stonewall && (nr_started || nr_running))
- break;
-
- /*
- * Set state to created. Thread will transition
- * to TD_INITIALIZED when it's done setting up.
- */
- td_set_runstate(td, TD_CREATED);
- map[this_jobs++] = td;
- fio_sem_init(&startup_sem, 1);
- nr_started++;
-
- if (td->use_thread) {
- if (pthread_create(&td->thread, NULL, thread_main, td)) {
- perror("thread_create");
- nr_started--;
- }
- } else {
- if (fork())
- fio_sem_down(&startup_sem);
- else {
- fork_main(shm_id, i);
- exit(0);
- }
- }
- }
-
- /*
- * Wait for the started threads to transition to
- * TD_INITIALIZED.
- */
- fio_gettime(&this_start, NULL);
- left = this_jobs;
- while (left && !fio_abort) {
- if (mtime_since_now(&this_start) > JOB_START_TIMEOUT)
- break;
-
- usleep(100000);
-
- for (i = 0; i < this_jobs; i++) {
- td = map[i];
- if (!td)
- continue;
- if (td->runstate == TD_INITIALIZED) {
- map[i] = NULL;
- left--;
- } else if (td->runstate >= TD_EXITED) {
- map[i] = NULL;
- left--;
- todo--;
- nr_running++; /* work-around... */
- }
- }
- }
-
- if (left) {
- log_err("fio: %d jobs failed to start\n", left);
- for (i = 0; i < this_jobs; i++) {
- td = map[i];
- if (!td)
- continue;
- kill(td->pid, SIGTERM);
- }
- break;
- }
-
- /*
- * start created threads (TD_INITIALIZED -> TD_RUNNING).
- */
- for_each_td(td, i) {
- if (td->runstate != TD_INITIALIZED)
- continue;
-
- td_set_runstate(td, TD_RUNNING);
- nr_running++;
- nr_started--;
- m_rate += td->ratemin;
- t_rate += td->rate;
- todo--;
- fio_sem_up(&td->mutex);
- }
-
- reap_threads(&nr_running, &t_rate, &m_rate);
-
- if (todo)
- usleep(100000);
- }
-
- while (nr_running) {
- reap_threads(&nr_running, &t_rate, &m_rate);
- usleep(10000);
- }
-
- update_io_ticks();
- fio_unpin_memory();
-}
-
-int main(int argc, char *argv[])
-{
- long ps;
-
- if (parse_options(argc, argv))
- return 1;
-
- if (!thread_number) {
- log_err("Nothing to do\n");
- return 1;
- }
+ if (!getenv("LC_NUMERIC"))
+ setlocale(LC_NUMERIC, "en_US");
ps = sysconf(_SC_PAGESIZE);
if (ps < 0) {
return 1;
}
+ page_size = ps;
page_mask = ps - 1;
- if (write_bw_log) {
- setup_log(&agg_io_log[DDIR_READ]);
- setup_log(&agg_io_log[DDIR_WRITE]);
- }
-
- disk_util_timer_arm();
-
- run_threads();
+ fio_keywords_init();
- if (!fio_abort) {
- show_run_stats();
- if (write_bw_log) {
- __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log");
- __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log");
- }
- }
+ if (parse_options(argc, argv))
+ return 1;
- return 0;
+ if (nr_clients)
+ return fio_handle_clients(&fio_client_ops);
+ else
+ return fio_backend();
}
projects / fio.git / blobdiff