#include <sys/mman.h>
#include "fio.h"
-#include "os.h"
+#include "hash.h"
-static unsigned long page_mask;
+unsigned long page_mask;
+unsigned long page_size;
#define ALIGN(buf) \
(char *) (((unsigned long) (buf) + page_mask) & ~page_mask)
int groupid = 0;
int thread_number = 0;
+int nr_process = 0;
+int nr_thread = 0;
int shm_id = 0;
int temp_stall_ts;
-static volatile int startup_sem;
+static struct fio_sem *startup_sem;
static volatile int fio_abort;
static int exit_value;
if (td->runstate < TD_RUNNING)
kill(td->pid, SIGQUIT);
td->terminate = 1;
- td->start_delay = 0;
+ td->o.start_delay = 0;
}
}
}
static int check_min_rate(struct thread_data *td, struct timeval *now)
{
unsigned long long bytes = 0;
+ unsigned long iops = 0;
unsigned long spent;
unsigned long rate;
/*
* No minimum rate set, always ok
*/
- if (!td->ratemin)
+ if (!td->o.ratemin && !td->o.rate_iops_min)
return 0;
/*
if (mtime_since(&td->start, now) < 2000)
return 0;
- if (td_read(td))
+ if (td_read(td)) {
+ iops += td->io_blocks[DDIR_READ];
bytes += td->this_io_bytes[DDIR_READ];
- if (td_write(td))
+ }
+ if (td_write(td)) {
+ iops += td->io_blocks[DDIR_WRITE];
bytes += td->this_io_bytes[DDIR_WRITE];
+ }
/*
* if rate blocks is set, sample is running
*/
- if (td->rate_bytes) {
+ if (td->rate_bytes || td->rate_blocks) {
spent = mtime_since(&td->lastrate, now);
- if (spent < td->ratecycle)
+ if (spent < td->o.ratecycle)
return 0;
- if (bytes < td->rate_bytes) {
- fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin);
- return 1;
+ if (td->o.rate) {
+ /*
+ * check bandwidth specified rate
+ */
+ if (bytes < td->rate_bytes) {
+ log_err("%s: min rate %u not met\n", td->o.name, td->o.ratemin);
+ return 1;
+ } else {
+ rate = (bytes - td->rate_bytes) / spent;
+ if (rate < td->o.ratemin || bytes < td->rate_bytes) {
+ log_err("%s: min rate %u not met, got %luKiB/sec\n", td->o.name, td->o.ratemin, rate);
+ return 1;
+ }
+ }
} else {
- rate = (bytes - td->rate_bytes) / spent;
- if (rate < td->ratemin || bytes < td->rate_bytes) {
- fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate);
+ /*
+ * checks iops specified rate
+ */
+ if (iops < td->o.rate_iops) {
+ log_err("%s: min iops rate %u not met\n", td->o.name, td->o.rate_iops);
return 1;
+ } else {
+ rate = (iops - td->rate_blocks) / spent;
+ if (rate < td->o.rate_iops_min || iops < td->rate_blocks) {
+ log_err("%s: min iops rate %u not met, got %lu\n", td->o.name, td->o.rate_iops_min, rate);
+ }
}
}
}
td->rate_bytes = bytes;
+ td->rate_blocks = iops;
memcpy(&td->lastrate, now, sizeof(*now));
return 0;
}
static inline int runtime_exceeded(struct thread_data *td, struct timeval *t)
{
- if (!td->timeout)
+ if (!td->o.timeout)
return 0;
- if (mtime_since(&td->epoch, t) >= td->timeout * 1000)
+ if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000)
return 1;
return 0;
{
struct fio_file *f;
struct io_u *io_u;
- int ret, i, min_events;
+ int ret, min_events;
+ unsigned int i;
/*
* sync io first and invalidate cache, to make sure we really
* read from disk.
*/
for_each_file(td, f, i) {
+ if (!(f->flags & FIO_FILE_OPEN))
+ continue;
if (fio_io_sync(td, f))
break;
if (file_invalidate_cache(td, f))
if (runtime_exceeded(td, &io_u->start_time)) {
put_io_u(td, io_u);
+ td->terminate = 1;
break;
}
case FIO_Q_COMPLETED:
if (io_u->error)
ret = -io_u->error;
- else if (io_u->xfer_buflen != io_u->resid && io_u->resid) {
+ else if (io_u->resid) {
int bytes = io_u->xfer_buflen - io_u->resid;
+ struct fio_file *f = io_u->file;
+
+ /*
+ * zero read, fail
+ */
+ if (!bytes) {
+ td_verror(td, ENODATA, "full resid");
+ put_io_u(td, io_u);
+ break;
+ }
io_u->xfer_buflen = io_u->resid;
io_u->xfer_buf += bytes;
+ io_u->offset += bytes;
+ f->last_completed_pos = io_u->offset;
+
+ td->ts.short_io_u[io_u->ddir]++;
+
+ if (io_u->offset == f->real_file_size)
+ goto sync_done;
+
requeue_io_u(td, &io_u);
} else {
+sync_done:
ret = io_u_sync_complete(td, io_u);
if (ret < 0)
break;
if (queue_full(td) || ret == FIO_Q_BUSY) {
min_events = 1;
- if (td->cur_depth > td->iodepth_low)
- min_events = td->cur_depth - td->iodepth_low;
+ if (td->cur_depth > td->o.iodepth_low)
+ min_events = td->cur_depth - td->o.iodepth_low;
}
/*
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.
{
struct timeval s;
unsigned long usec;
- int i, ret = 0;
+ unsigned int i;
+ int ret = 0;
td_set_runstate(td, TD_RUNNING);
- while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) {
+ while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) {
struct timeval comp_time;
long bytes_done = 0;
int min_evts = 0;
if (runtime_exceeded(td, &s)) {
put_io_u(td, io_u);
+ td->terminate = 1;
break;
}
+ /*
+ * Add verification end_io handler, if asked to verify
+ * a previously written file.
+ */
+ if (td->o.verify != VERIFY_NONE)
+ io_u->end_io = verify_io_u;
+
ret = td_io_queue(td, io_u);
switch (ret) {
case FIO_Q_COMPLETED:
if (io_u->error)
ret = -io_u->error;
- else if (io_u->xfer_buflen != io_u->resid && io_u->resid) {
+ else if (io_u->resid) {
int bytes = io_u->xfer_buflen - io_u->resid;
+ struct fio_file *f = io_u->file;
+
+ /*
+ * zero read, fail
+ */
+ if (!bytes) {
+ td_verror(td, ENODATA, "full resid");
+ put_io_u(td, io_u);
+ break;
+ }
io_u->xfer_buflen = io_u->resid;
io_u->xfer_buf += bytes;
+ io_u->offset += bytes;
+ f->last_completed_pos = io_u->offset;
+
+ td->ts.short_io_u[io_u->ddir]++;
+
+ if (io_u->offset == f->real_file_size)
+ goto sync_done;
+
requeue_io_u(td, &io_u);
} else {
+sync_done:
fio_gettime(&comp_time, NULL);
bytes_done = io_u_sync_complete(td, io_u);
if (bytes_done < 0)
if (queue_full(td) || ret == FIO_Q_BUSY) {
min_evts = 1;
- if (td->cur_depth > td->iodepth_low)
- min_evts = td->cur_depth - td->iodepth_low;
+ if (td->cur_depth > td->o.iodepth_low)
+ min_evts = td->cur_depth - td->o.iodepth_low;
}
fio_gettime(&comp_time, NULL);
break;
}
- if (td->thinktime) {
+ if (td->o.thinktime) {
unsigned long long b;
b = td->io_blocks[0] + td->io_blocks[1];
- if (!(b % td->thinktime_blocks)) {
+ if (!(b % td->o.thinktime_blocks)) {
int left;
- if (td->thinktime_spin)
- __usec_sleep(td->thinktime_spin);
+ if (td->o.thinktime_spin)
+ __usec_sleep(td->o.thinktime_spin);
- left = td->thinktime - td->thinktime_spin;
+ left = td->o.thinktime - td->o.thinktime_spin;
if (left)
usec_sleep(td, left);
}
if (i)
ret = io_u_queued_complete(td, i);
- if (should_fsync(td) && td->end_fsync) {
+ if (should_fsync(td) && td->o.end_fsync) {
td_set_runstate(td, TD_FSYNCING);
- for_each_file(td, f, i)
+
+ for_each_file(td, f, i) {
+ if (!(f->flags & FIO_FILE_OPEN))
+ continue;
fio_io_sync(td, f);
+ }
}
} else
cleanup_pending_aio(td);
/*
* "randomly" fill the buffer contents
*/
-static void fill_rand_buf(struct io_u *io_u, int max_bs)
+static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs)
{
- int *ptr = io_u->buf;
+ long *ptr = io_u->buf;
- while ((void *) ptr - io_u->buf < max_bs) {
- *ptr = rand() * 0x9e370001;
- ptr++;
- }
+ if (!td->o.zero_buffers) {
+ while ((void *) ptr - io_u->buf < max_bs) {
+ *ptr = rand() * GOLDEN_RATIO_PRIME;
+ ptr++;
+ }
+ } else
+ memset(ptr, 0, max_bs);
}
static int init_io_u(struct thread_data *td)
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_units = td->o.iodepth;
- max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]);
- td->orig_buffer_size = max_bs * max_units;
+ max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
+ td->orig_buffer_size = (unsigned long long) max_bs * (unsigned long long) 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 (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE)
+ td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1);
+
+ if (td->orig_buffer_size != (size_t) td->orig_buffer_size) {
+ log_err("fio: IO memory too large. Reduce max_bs or iodepth\n");
+ return 1;
+ }
if (allocate_io_mem(td))
return 1;
- p = ALIGN(td->orig_buffer);
+ if (td->o.odirect)
+ p = ALIGN(td->orig_buffer);
+ else
+ p = td->orig_buffer;
+
for (i = 0; i < max_units; i++) {
+ if (td->terminate)
+ return 1;
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);
+
+ if (td_write(td))
+ fill_io_buf(td, io_u, max_bs);
io_u->index = i;
io_u->flags = IO_U_F_FREE;
FILE *f;
int ret;
- if (td->io_ops->flags & FIO_CPUIO)
+ if (td->io_ops->flags & FIO_DISKLESSIO)
return 0;
sprintf(tmp, "%s/queue/scheduler", td->sysfs_root);
f = fopen(tmp, "r+");
if (!f) {
- td_verror(td, errno, "fopen");
+ if (errno == ENOENT) {
+ log_err("fio: os or kernel doesn't support IO scheduler switching\n");
+ return 0;
+ }
+ td_verror(td, errno, "fopen iosched");
return 1;
}
/*
* Set io scheduler.
*/
- ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f);
+ ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f);
if (ferror(f) || ret != 1) {
td_verror(td, errno, "fwrite");
fclose(f);
return 1;
}
- sprintf(tmp2, "[%s]", td->ioscheduler);
+ sprintf(tmp2, "[%s]", td->o.ioscheduler);
if (!strstr(tmp, tmp2)) {
- log_err("fio: io scheduler %s not found\n", td->ioscheduler);
+ log_err("fio: io scheduler %s not found\n", td->o.ioscheduler);
td_verror(td, EINVAL, "iosched_switch");
fclose(f);
return 1;
return 0;
}
-static void clear_io_state(struct thread_data *td)
+static int keep_running(struct thread_data *td)
+{
+ unsigned long long io_done;
+
+ if (td->done)
+ return 0;
+ if (td->o.time_based)
+ return 1;
+ if (td->o.loops) {
+ td->o.loops--;
+ return 1;
+ }
+
+ io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] + td->io_skip_bytes;
+ if (io_done < td->o.size)
+ return 1;
+
+ return 0;
+}
+
+static int clear_io_state(struct thread_data *td)
{
struct fio_file *f;
- int i;
+ unsigned int i;
+ int ret;
td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0;
td->this_io_bytes[0] = td->this_io_bytes[1] = 0;
td->zone_bytes = 0;
+ td->rate_bytes = 0;
+ td->rate_blocks = 0;
+ td->rw_end_set[0] = td->rw_end_set[1] = 0;
td->last_was_sync = 0;
- for_each_file(td, f, i) {
- f->last_completed_pos = 0;
+ if (td->o.time_based)
+ td->nr_done_files = 0;
- f->last_pos = 0;
- if (td->io_ops->flags & FIO_SYNCIO)
- lseek(f->fd, SEEK_SET, 0);
+ for_each_file(td, f, i)
+ td_io_close_file(td, f);
- if (f->file_map)
- memset(f->file_map, 0, f->num_maps * sizeof(long));
+ ret = 0;
+ for_each_file(td, f, i) {
+ f->flags &= ~FIO_FILE_DONE;
+ ret = td_io_open_file(td, f);
+ if (ret)
+ break;
}
+
+ return ret;
}
/*
{
unsigned long long runtime[2];
struct thread_data *td = data;
+ unsigned long elapsed;
+ int clear_state;
- if (!td->use_thread)
+ if (!td->o.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_u_requeues);
- INIT_LIST_HEAD(&td->io_hist_list);
INIT_LIST_HEAD(&td->io_log_list);
+ INIT_LIST_HEAD(&td->io_hist_list);
+ td->io_hist_tree = RB_ROOT;
+
+ td_set_runstate(td, TD_INITIALIZED);
+ fio_sem_up(startup_sem);
+ fio_sem_down(td->mutex);
+
+ /*
+ * the ->mutex semaphore is now no longer used, close it to avoid
+ * eating a file descriptor
+ */
+ fio_sem_remove(td->mutex);
+
+ /*
+ * May alter parameters that init_io_u() will use, so we need to
+ * do this first.
+ */
+ if (init_iolog(td))
+ goto err;
if (init_io_u(td))
goto err;
- if (fio_setaffinity(td) == -1) {
+ if (td->o.cpumask_set && fio_setaffinity(td) == -1) {
td_verror(td, errno, "cpu_set_affinity");
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, "ioprio_set");
}
}
- if (nice(td->nice) == -1) {
+ if (nice(td->o.nice) == -1) {
td_verror(td, errno, "nice");
goto err;
}
- if (init_random_state(td))
+ if (td->o.ioscheduler && switch_ioscheduler(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))
+ if (!td->o.create_serialize && setup_files(td))
goto err;
if (td_io_init(td))
if (open_files(td))
goto err;
- if (td->exec_prerun) {
- if (system(td->exec_prerun) < 0)
+ if (init_random_map(td))
+ goto err;
+
+ if (td->o.exec_prerun) {
+ if (system(td->o.exec_prerun) < 0)
goto err;
}
getrusage(RUSAGE_SELF, &td->ts.ru_start);
runtime[0] = runtime[1] = 0;
- while (td->loops--) {
+ clear_state = 0;
+ while (keep_running(td)) {
fio_gettime(&td->start, NULL);
memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start));
- if (td->ratemin)
+ if (td->o.ratemin)
memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate));
- clear_io_state(td);
+ if (clear_state && clear_io_state(td))
+ break;
+
prune_io_piece_log(td);
- if (td->io_ops->flags & FIO_CPUIO)
- do_cpuio(td);
- else
- do_io(td);
+ do_io(td);
+
+ clear_state = 1;
+
+ if (td_read(td) && td->io_bytes[DDIR_READ]) {
+ if (td->rw_end_set[DDIR_READ])
+ elapsed = utime_since(&td->start, &td->rw_end[DDIR_READ]);
+ else
+ elapsed = utime_since_now(&td->start);
+
+ runtime[DDIR_READ] += elapsed;
+ }
+ if (td_write(td) && td->io_bytes[DDIR_WRITE]) {
+ if (td->rw_end_set[DDIR_WRITE])
+ elapsed = utime_since(&td->start, &td->rw_end[DDIR_WRITE]);
+ else
+ elapsed = utime_since_now(&td->start);
- if (td_read(td) && td->io_bytes[DDIR_READ])
- runtime[DDIR_READ] += utime_since_now(&td->start);
- if (td_write(td) && td->io_bytes[DDIR_WRITE])
- runtime[DDIR_WRITE] += utime_since_now(&td->start);
+ runtime[DDIR_WRITE] += elapsed;
+ }
if (td->error || td->terminate)
break;
- if (td->verify == VERIFY_NONE)
+ if (!td->o.do_verify ||
+ td->o.verify == VERIFY_NONE ||
+ (td->io_ops->flags & FIO_UNIDIR))
continue;
- clear_io_state(td);
+ if (clear_io_state(td))
+ break;
+
fio_gettime(&td->start, NULL);
do_verify(td);
}
update_rusage_stat(td);
- td->ts.runtime[0] = runtime[0] / 1000;
- td->ts.runtime[1] = runtime[1] / 1000;
+ td->ts.runtime[0] = (runtime[0] + 999) / 1000;
+ td->ts.runtime[1] = (runtime[1] + 999) / 1000;
td->ts.total_run_time = mtime_since_now(&td->epoch);
td->ts.io_bytes[0] = td->io_bytes[0];
td->ts.io_bytes[1] = td->io_bytes[1];
finish_log(td, td->ts.slat_log, "slat");
if (td->ts.clat_log)
finish_log(td, td->ts.clat_log, "clat");
- if (td->write_iolog_file)
- write_iolog_close(td);
- if (td->exec_postrun) {
- if (system(td->exec_postrun) < 0)
- log_err("fio: postrun %s failed\n", td->exec_postrun);
+ if (td->o.exec_postrun) {
+ if (system(td->o.exec_postrun) < 0)
+ log_err("fio: postrun %s failed\n", td->o.exec_postrun);
}
if (exitall_on_terminate)
close_files(td);
close_ioengine(td);
cleanup_io_u(td);
+
+ /*
+ * do this very late, it will log file closing as well
+ */
+ if (td->o.write_iolog_file)
+ write_iolog_close(td);
+
+ options_mem_free(td);
td_set_runstate(td, TD_EXITED);
return (void *) (unsigned long) td->error;
}
* ->io_ops is NULL for a thread that has closed its
* io engine
*/
- if (td->io_ops && td->io_ops->flags & FIO_CPUIO)
+ if (td->io_ops && !strcmp(td->io_ops->name, "cpuio"))
cputhreads++;
if (!td->pid || td->runstate == TD_REAPED)
continue;
- if (td->use_thread) {
+ if (td->o.use_thread) {
if (td->runstate == TD_EXITED) {
td_set_runstate(td, TD_REAPED);
goto reaped;
/*
* thread is not dead, continue
*/
+ pending++;
continue;
reaped:
- if (td->use_thread) {
+ if (td->o.use_thread) {
long ret;
if (pthread_join(td->thread, (void *) &ret))
}
(*nr_running)--;
- (*m_rate) -= td->ratemin;
- (*t_rate) -= td->rate;
+ (*m_rate) -= td->o.ratemin;
+ (*t_rate) -= td->o.rate;
+ pending--;
if (td->error)
exit_value++;
return;
if (!terse_output) {
- printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : "");
+ printf("Starting ");
+ if (nr_thread)
+ printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : "");
+ if (nr_process) {
+ if (nr_thread)
+ printf(" and ");
+ printf("%d process%s", nr_process, nr_process > 1 ? "es" : "");
+ }
+ printf("\n");
fflush(stdout);
}
for_each_td(td, i) {
print_status_init(td->thread_number - 1);
- if (!td->create_serialize) {
+ if (!td->o.create_serialize) {
init_disk_util(td);
continue;
}
continue;
}
- if (td->start_delay) {
+ if (td->o.start_delay) {
spent = mtime_since_genesis();
- if (td->start_delay * 1000 > spent)
+ if (td->o.start_delay * 1000 > spent)
continue;
}
- if (td->stonewall && (nr_started || nr_running))
+ if (td->o.stonewall && (nr_started || nr_running))
break;
/*
*/
td_set_runstate(td, TD_CREATED);
map[this_jobs++] = td;
- fio_sem_init(&startup_sem, 1);
nr_started++;
- if (td->use_thread) {
+ if (td->o.use_thread) {
if (pthread_create(&td->thread, NULL, thread_main, td)) {
perror("thread_create");
nr_started--;
+ break;
}
} else {
- if (fork())
- fio_sem_down(&startup_sem);
- else {
+ if (!fork()) {
int ret = fork_main(shm_id, i);
exit(ret);
}
}
+ fio_sem_down(startup_sem);
}
/*
td_set_runstate(td, TD_RUNNING);
nr_running++;
nr_started--;
- m_rate += td->ratemin;
- t_rate += td->rate;
+ m_rate += td->o.ratemin;
+ t_rate += td->o.rate;
todo--;
- fio_sem_up(&td->mutex);
+ fio_sem_up(td->mutex);
}
reap_threads(&nr_running, &t_rate, &m_rate);
if (parse_options(argc, argv))
return 1;
- if (!thread_number) {
- log_err("Nothing to do\n");
- return 1;
- }
+ if (!thread_number)
+ return 0;
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_WRITE]);
}
+ startup_sem = fio_sem_init(0);
+
set_genesis_time();
disk_util_timer_arm();
}
}
+ fio_sem_remove(startup_sem);
return exit_value;
}
projects / fio.git / blobdiff