diff --git a/src/fast_timer.c b/src/fast_timer.c
index 53cb666..6ab5717 100644
--- a/src/fast_timer.c
+++ b/src/fast_timer.c
@@ -105,6 +105,7 @@ int fast_timer_modify(FastTimer *timer, FastTimerEntry *entry,
         if ((result=fast_timer_remove(timer, entry)) == 0) {
             fast_timer_add_ex(timer, entry, new_expires, true);
         }
+
         return result;
     }
     return 0;
diff --git a/src/ioevent.c b/src/ioevent.c
index 4b11e18..44d5c04 100644
--- a/src/ioevent.c
+++ b/src/ioevent.c
@@ -45,8 +45,8 @@ int kqueue_ev_convert(int16_t event, uint16_t flags)
 }
 #endif
 
-int ioevent_init(IOEventPoller *ioevent, const int size,
-    const int timeout_ms, const int extra_events)
+int ioevent_init(IOEventPoller *ioevent, const char *service_name,
+        const int size, const int timeout_ms, const int extra_events)
 {
 #if IOEVENT_USE_URING
     int result;
@@ -57,6 +57,7 @@ int ioevent_init(IOEventPoller *ioevent, const int size,
     ioevent->iterator.count = 0;
 #endif
 
+    ioevent->service_name = service_name;
     ioevent->size = size;
     ioevent->extra_events = extra_events;
 
diff --git a/src/ioevent.h b/src/ioevent.h
index b82efae..19a517f 100644
--- a/src/ioevent.h
+++ b/src/ioevent.h
@@ -73,6 +73,7 @@ int kqueue_ev_convert(int16_t event, uint16_t flags);
 #endif
 
 typedef struct ioevent_puller {
+    const char *service_name;
     int size;  //max events (fd)
     int extra_events;
 #if IOEVENT_USE_URING
@@ -156,8 +157,8 @@ typedef struct ioevent_puller {
 extern "C" {
 #endif
 
-int ioevent_init(IOEventPoller *ioevent, const int size,
-    const int timeout_ms, const int extra_events);
+int ioevent_init(IOEventPoller *ioevent, const char *service_name,
+        const int size, const int timeout_ms, const int extra_events);
 void ioevent_destroy(IOEventPoller *ioevent);
 
 int ioevent_attach(IOEventPoller *ioevent, const int fd,
diff --git a/src/ioevent_loop.c b/src/ioevent_loop.c
index 60a0a9d..e062029 100644
--- a/src/ioevent_loop.c
+++ b/src/ioevent_loop.c
@@ -48,14 +48,21 @@ static int ioevent_process(IOEventPoller *ioevent)
             if (ioevent->cqe->flags & IORING_CQE_F_NOTIF) {
 #ifdef IORING_NOTIF_USAGE_ZC_COPIED
                 if (!ioevent->send_zc_logged) {
+                    struct fast_task_info *task;
+
+                    task = (struct fast_task_info *)pEntry;
                     ioevent->send_zc_logged = true;
                     if (ioevent->cqe->res & IORING_NOTIF_USAGE_ZC_COPIED) {
-                        logWarning("file: "__FILE__", line: %d, "
-                                "io_uring send_zc: memory copy "
-                                "instead of zero copy!", __LINE__);
+                        logWarning("file: "__FILE__", line: %d, %s "
+                                "client %s:%u, io_uring send_zc: memory "
+                                "copy instead of zero copy!", __LINE__,
+                                ioevent->service_name, task->client_ip,
+                                task->port);
                     } else {
-                        logInfo("file: "__FILE__", line: %d, "
-                                "io_uring send_zc: zero copy OK.", __LINE__);
+                        logInfo("file: "__FILE__", line: %d, %s "
+                                "client %s:%u, io_uring send_zc: zero "
+                                "copy OK.", __LINE__, ioevent->service_name,
+                                task->client_ip, task->port);
                     }
                 }
 #endif
diff --git a/src/multi_socket_client.c b/src/multi_socket_client.c
index e122278..b365f58 100644
--- a/src/multi_socket_client.c
+++ b/src/multi_socket_client.c
@@ -65,8 +65,8 @@ int fast_multi_sock_client_init_ex(FastMultiSockClient *client,
         return EINVAL;
     }
 
-    if ((result=ioevent_init(&client->ioevent, entry_count,
-                    timeout_ms, 0)) != 0)
+    if ((result=ioevent_init(&client->ioevent, "client",
+                    entry_count, timeout_ms, 0)) != 0)
     {
         logError("file: "__FILE__", line: %d, "
                 "ioevent_init fail, errno: %d, error info: %s",