diff --git a/server/gameserver/mapmgr.cc b/server/gameserver/mapmgr.cc
index 8a1b5b9..3642d04 100644
--- a/server/gameserver/mapmgr.cc
+++ b/server/gameserver/mapmgr.cc
@@ -54,24 +54,6 @@ void MapMgr::AttachRoom(Room* room)
     room->loots = &loots_;
     room->buildings = &buildings_;
     room->map_meta = map_meta_;
-    #ifdef DEBUG
-    {
-        room->xtimer.AddRepeatTimer
-            (
-             SERVER_FRAME_RATE,
-             a8::XParams()
-             .SetSender(room),
-             [] (const a8::XParams& param)
-             {
-                 Room* room = (Room*)param.sender.GetUserData();
-                 a8::UdpLog::Instance()->Debug("room_idx:%d real_alive_count:%d",
-                                               {
-                                                room->room_idx,
-                                                room->RealAliveCount()
-                                               });
-             });
-    }
-    #endif
 }
 
 void MapMgr::CreateThings()
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index cc4e3ca..d5c3f02 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -48,6 +48,24 @@ void Room::Init()
 
     xtimer.Init(RoomXGetTickCount, this, 100, 100);
     xtimer_attacher_.xtimer = &xtimer;
+    #ifdef DEBUG
+    {
+        xtimer.AddRepeatTimer
+            (
+             SERVER_FRAME_RATE * 3,
+             a8::XParams()
+             .SetSender(this),
+             [] (const a8::XParams& param)
+             {
+                 Room* room = (Room*)param.sender.GetUserData();
+                 a8::UdpLog::Instance()->Debug("room_idx:%d real_alive_count:%d",
+                                               {
+                                                room->room_idx,
+                                                room->RealAliveCount()
+                                               });
+             });
+    }
+    #endif
 
     CreateSpawnPoints();
     CreateLoots();
@@ -59,6 +77,7 @@ void Room::Init()
 void Room::UnInit()
 {
     App::Instance()->perf.alive_count -= alive_count_;
+    timer_attacher.ClearTimerList();
     xtimer_attacher_.ClearTimerList();
     for (auto& pair : accountid_hash_) {
         PlayerMgr::Instance()->RemovePlayerBySocket(pair.second->socket_handle);