diff --git a/Platform/common/rpc/rpc_common.h b/Platform/common/rpc/rpc_common.h
index fc80b4df5..c4f101fac 100755
--- a/Platform/common/rpc/rpc_common.h
+++ b/Platform/common/rpc/rpc_common.h
@@ -16,6 +16,7 @@
 #define BUFFER_SIZE 2048
 #define RPC_VERSION "RPC/1.0"
 #define TIMEOUT 120
+#define TIMEWARN 200
 
 typedef enum {
     /* RPC ret code */
diff --git a/Platform/common/rpc/rpc_util.h b/Platform/common/rpc/rpc_util.h
index cb6600462..bb9027841 100755
--- a/Platform/common/rpc/rpc_util.h
+++ b/Platform/common/rpc/rpc_util.h
@@ -118,4 +118,6 @@ void rpc_sleep(int ms);
 
 void rpc_set_non_block(int fd);
 
+long rpc_time_msec(void);
+
 #endif /* RPC_UTIL_H_ */
diff --git a/Platform/user/rpc/rpc_client.c b/Platform/user/rpc/rpc_client.c
index 8adecb60b..23c9224d0 100755
--- a/Platform/user/rpc/rpc_client.c
+++ b/Platform/user/rpc/rpc_client.c
@@ -11,6 +11,7 @@
 #include "rpc_thread.h"
 #include "rpc_module.h"
 #include "rpc_conn.h"
+#include "rpc_util.h"
 
 #include <assert.h>
 #include <sys/socket.h>
@@ -22,6 +23,7 @@
 #include <unistd.h>
 #include <time.h>
 #include <sys/eventfd.h>
+#include <sys/time.h>
 
 //server: one thread multiply connection. a connection would block a thread
 //client: one thread one connection
@@ -137,9 +139,11 @@ ret_code rpc_client_call(rpc_client* client, char* service_name,
 		int* output_len) {
 	int n_fd = eventfd(0, 0);
 	rpc_response rsp;
-
+    long time_diff;
+    
     assert(client!=NULL);
 	rsp.data = (INT_TO_POINTER(n_fd));
+    time_diff = rpc_time_msec();
 	rpc_client_call_async(client, service_name, method_name, input, input_len,
 			              cb_call_ex, &rsp);
 
@@ -154,6 +158,13 @@ ret_code rpc_client_call(rpc_client* client, char* service_name,
 	int rt = select(n_fd + 1, &r_set, NULL, NULL, &tm);
 
 	close(n_fd);
+    
+    time_diff = rpc_time_msec()-time_diff;
+    if(time_diff > TIMEWARN)
+    {
+        rpc_log_warn("call %s@%s cost %ld\n",service_name, method_name, time_diff);
+    }
+    
 	if (rt == -1) {
 		return RET_UNKNOWN;
 	} else if (rt == 0) {
diff --git a/Platform/user/rpc/rpc_util.c b/Platform/user/rpc/rpc_util.c
index bc6191675..d40b631a4 100755
--- a/Platform/user/rpc/rpc_util.c
+++ b/Platform/user/rpc/rpc_util.c
@@ -62,4 +62,13 @@ uint rpc_str_hash(constpointer v) {
 	return h;
 }
 
+long rpc_time_msec(void)
+{
+    struct timespec tp = {0};
+    
+    clock_gettime (CLOCK_MONOTONIC, &tp);
+
+     return(tp.tv_sec * 1000 + tp.tv_nsec / (1000 *1000));
+}
+