static int last_majdev, last_mindev;
static struct disk_util *last_du;
+static struct fio_mutex *disk_util_mutex;
+static int disk_util_exit;
+
FLIST_HEAD(disk_list);
static struct disk_util *__init_per_file_disk_util(struct thread_data *td,
memcpy(ldus, &__dus, sizeof(__dus));
}
-void update_io_ticks(void)
+int update_io_ticks(void)
{
struct flist_head *entry;
struct disk_util *du;
+ int ret = 0;
dprint(FD_DISKUTIL, "update io ticks\n");
- flist_for_each(entry, &disk_list) {
- du = flist_entry(entry, struct disk_util, list);
- update_io_tick_disk(du);
- }
+ fio_mutex_down(disk_util_mutex);
+
+ if (!disk_util_exit) {
+ flist_for_each(entry, &disk_list) {
+ du = flist_entry(entry, struct disk_util, list);
+ update_io_tick_disk(du);
+ }
+ } else
+ ret = 1;
+
+ fio_mutex_up(disk_util_mutex);
+ return ret;
}
static struct disk_util *disk_util_exists(int major, int minor)
struct flist_head *entry;
struct disk_util *du;
+ fio_mutex_down(disk_util_mutex);
+
flist_for_each(entry, &disk_list) {
du = flist_entry(entry, struct disk_util, list);
- if (major == du->major && minor == du->minor)
+ if (major == du->major && minor == du->minor) {
+ fio_mutex_up(disk_util_mutex);
return du;
+ }
}
+ fio_mutex_up(disk_util_mutex);
return NULL;
}
du->minor = mindev;
INIT_FLIST_HEAD(&du->slavelist);
INIT_FLIST_HEAD(&du->slaves);
- du->lock = fio_mutex_init(1);
+ du->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
du->users = 0;
+ fio_mutex_down(disk_util_mutex);
+
flist_for_each(entry, &disk_list) {
__du = flist_entry(entry, struct disk_util, list);
if (!strcmp((char *) du->dus.name, (char *) __du->dus.name)) {
disk_util_free(du);
+ fio_mutex_up(disk_util_mutex);
return __du;
}
}
get_io_ticks(du, &du->last_dus);
flist_add_tail(&du->list, &disk_list);
+ fio_mutex_up(disk_util_mutex);
+
find_add_disk_slaves(td, path, du);
return du;
}
{
struct disk_util *du;
+ disk_util_exit = 1;
+ wait_for_disk_thread_exit();
+
+ fio_mutex_down(disk_util_mutex);
+
while (!flist_empty(&disk_list)) {
du = flist_entry(disk_list.next, struct disk_util, list);
flist_del(&du->list);
}
last_majdev = last_mindev = -1;
+ fio_mutex_up(disk_util_mutex);
+ fio_mutex_remove(disk_util_mutex);
}
void print_disk_util(struct disk_util_stat *dus, struct disk_util_agg *agg,
log_info("\n");
}
-void show_disk_util(int terse)
+static void print_disk_util_json(struct disk_util *du, struct json_array *array)
+{
+ double util = 0;
+ struct disk_util_stat *dus = &du->dus;
+ struct disk_util_agg *agg = &du->agg;
+ struct json_object *obj;
+
+ obj = json_create_object();
+ json_array_add_value_object(array, obj);
+
+ if (dus->msec)
+ util = (double) 100 * dus->io_ticks / (double) dus->msec;
+ if (util > 100.0)
+ util = 100.0;
+
+
+ json_object_add_value_string(obj, "name", dus->name);
+ json_object_add_value_int(obj, "read_ios", dus->ios[0]);
+ json_object_add_value_int(obj, "write_ios", dus->ios[1]);
+ json_object_add_value_int(obj, "read_merges", dus->merges[0]);
+ json_object_add_value_int(obj, "write_merges", dus->merges[1]);
+ json_object_add_value_int(obj, "read_ticks", dus->ticks[0]);
+ json_object_add_value_int(obj, "write_ticks", dus->ticks[1]);
+ json_object_add_value_int(obj, "in_queue", dus->time_in_queue);
+ json_object_add_value_float(obj, "util", util);
+
+ /*
+ * If the device has slaves, aggregate the stats for
+ * those slave devices also.
+ */
+ if (!agg->slavecount)
+ return;
+ json_object_add_value_int(obj, "aggr_read_ios",
+ agg->ios[0] / agg->slavecount);
+ json_object_add_value_int(obj, "aggr_write_ios",
+ agg->ios[1] / agg->slavecount);
+ json_object_add_value_int(obj, "aggr_read_merges",
+ agg->merges[0] / agg->slavecount);
+ json_object_add_value_int(obj, "aggr_write_merge",
+ agg->merges[1] / agg->slavecount);
+ json_object_add_value_int(obj, "aggr_read_ticks",
+ agg->ticks[0] / agg->slavecount);
+ json_object_add_value_int(obj, "aggr_write_ticks",
+ agg->ticks[1] / agg->slavecount);
+ json_object_add_value_int(obj, "aggr_in_queue",
+ agg->time_in_queue / agg->slavecount);
+ json_object_add_value_float(obj, "aggr_util", agg->max_util.u.f);
+}
+
+void show_disk_util(int terse, struct json_object *parent)
{
struct flist_head *entry;
struct disk_util *du;
+ struct json_array *array = NULL;
+
+ fio_mutex_down(disk_util_mutex);
- if (flist_empty(&disk_list))
+ if (flist_empty(&disk_list)) {
+ fio_mutex_up(disk_util_mutex);
return;
+ }
if (!terse)
log_info("\nDisk stats (read/write):\n");
+ if (terse && terse_version == 4) {
+ array = json_create_array();
+ json_object_add_value_array(parent, "disk_util", array);
+ }
+
flist_for_each(entry, &disk_list) {
du = flist_entry(entry, struct disk_util, list);
aggregate_slaves_stats(du);
- print_disk_util(&du->dus, &du->agg, terse);
+ if (terse && terse_version == 4)
+ print_disk_util_json(du, array);
+ else
+ print_disk_util(&du->dus, &du->agg, terse);
}
+
+ fio_mutex_up(disk_util_mutex);
+}
+
+void setup_disk_util(void)
+{
+ disk_util_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
}