diff --git a/server/gameserver/mapmgr.cc b/server/gameserver/mapmgr.cc
index 3642d04..8a1b5b9 100644
--- a/server/gameserver/mapmgr.cc
+++ b/server/gameserver/mapmgr.cc
@@ -54,6 +54,24 @@ 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/roommgr.cc b/server/gameserver/roommgr.cc
index cb59b88..16ccd4c 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -19,7 +19,7 @@
 #include "framework/cpp/utils.h"
 
 const int ROOM_NUM_UP_LIMIT = 900;
-const int HUM_NUM_DOWN_LIMIT = 1000;
+const int HUM_NUM_DOWN_LIMIT = 1200;
 
 static RoomType_e GetHumanRoomType(const cs::CMJoin& msg)
 {
@@ -69,30 +69,13 @@ void RoomMgr::UnInit()
 
 void RoomMgr::Update(int delta_time)
 {
-    #ifdef DEBUG
-    static long long last_tick = 0;
-    #endif
     long long real_alive_count = 0;
     for (auto& pair : room_hash_) {
         Room* room = pair.second;
         room->Update(delta_time);
         real_alive_count += room->RealAliveCount();
-        #ifdef DEBUG
-        if (a8::XGetTickCount() - last_tick > 1000 * 1) {
-            a8::UdpLog::Instance()->Debug("room_idx:%d real_alive_count:%d",
-                                          {
-                                           room->room_idx,
-                                           room->RealAliveCount()
-                                          });
-        }
-        #endif
     }
     App::Instance()->perf.real_alive_count = real_alive_count;
-#ifdef DEBUG
-    if (a8::XGetTickCount() - last_tick > 1000 * 1) {
-        last_tick = a8::XGetTickCount();
-    }
-#endif
 }
 
 void RoomMgr::_CMJoin(f8::MsgHdr& hdr, const cs::CMJoin& msg)