Commit cf82b9bc authored by Seth Howell's avatar Seth Howell Committed by Jim Harris
Browse files

bdev: add extra parameters to iostat rpc. 



These parameters include read and write latency ticks, current queue
depth, and the period at which the queue depth is beign polled.

Change-Id: I7c57177e3cd1629b957a16dd8f4fa992ef53ae3d
Signed-off-by: default avatarSeth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/418117


Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarZiye Yang <optimistyzy@gmail.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 03987024

lib/bdev/rpc/bdev_rpc.c

+20 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */



#include "spdk/env.h"

#include "spdk/log.h"

#include "spdk/rpc.h"

#include "spdk/string.h"
@@ -75,6 +76,20 @@ spdk_rpc_get_bdevs_iostat_cb(struct spdk_bdev *bdev, 
		spdk_json_write_name(w, "num_write_ops");

		spdk_json_write_uint64(w, stat->num_write_ops);



		spdk_json_write_name(w, "read_latency_ticks");

		spdk_json_write_uint64(w, stat->read_latency_ticks);



		spdk_json_write_name(w, "write_latency_ticks");

		spdk_json_write_uint64(w, stat->write_latency_ticks);



		if (spdk_bdev_get_qd_sampling_period(bdev)) {

			spdk_json_write_name(w, "queue_depth_polling_period");

			spdk_json_write_uint64(w, spdk_bdev_get_qd_sampling_period(bdev));



			spdk_json_write_name(w, "queue_depth");

			spdk_json_write_uint64(w, spdk_bdev_get_qd(bdev));

		}



		spdk_json_write_object_end(w);

	}
@@ -153,6 +168,11 @@ spdk_rpc_get_bdevs_iostat(struct spdk_jsonrpc_request *request, 


	spdk_json_write_array_begin(w);



	spdk_json_write_object_begin(w);

	spdk_json_write_name(w, "tick_rate");

	spdk_json_write_uint64(w, spdk_get_ticks_hz());

	spdk_json_write_object_end(w);



	if (bdev != NULL) {

		stat = calloc(1, sizeof(struct spdk_bdev_io_stat));

		if (stat == NULL) {