diff --git a/trunk/src/app/srs_app_server.cpp b/trunk/src/app/srs_app_server.cpp
index e0834aae4..020670a23 100644
--- a/trunk/src/app/srs_app_server.cpp
+++ b/trunk/src/app/srs_app_server.cpp
@@ -55,7 +55,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // for example, system-time is 3(300ms),
 // then rusage can be 3*x, for instance, 3*10=30(3s),
 // the meminfo canbe 30*x, for instance, 30*2=60(6s)
-#define SRS_SYS_CYCLE_INTERVAL 100
+// for performance refine, @see: https://github.com/winlinvip/simple-rtmp-server/issues/194
+#define SRS_SYS_CYCLE_INTERVAL 1000
 
 // update time interval:
 //      SRS_SYS_CYCLE_INTERVAL * SRS_SYS_TIME_RESOLUTION_MS_TIMES