diff --git a/server/gameserver/CMakeLists.txt b/server/gameserver/CMakeLists.txt
index 5571651..d395195 100644
--- a/server/gameserver/CMakeLists.txt
+++ b/server/gameserver/CMakeLists.txt
@@ -9,7 +9,7 @@ else()
 endif()
 
 set(CMAKE_BUILD_TYPE "Debug")
-set(CMAKE_CXX_FLAGS_RELEASE "-std=gnu++11 -fsanitize=address -fno-omit-frame-pointer")
+set(CMAKE_CXX_FLAGS_RELEASE "-O2 -g -std=gnu++11 -DGAME_ID=${GAME_ID}")
 set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID}")
 
 include_directories(
diff --git a/server/gameserver/android.cc b/server/gameserver/android.cc
index 3b59776..6c7fe6f 100644
--- a/server/gameserver/android.cc
+++ b/server/gameserver/android.cc
@@ -4,6 +4,7 @@
 #include "metamgr.h"
 #include "android.ai.h"
 #include "room.h"
+#include "app.h"
 
 Android::Android():Human()
 {
@@ -11,12 +12,14 @@ Android::Android():Human()
     entity_subtype = EST_Android;
     ai = new AndroidAI;
     ai->owner = this;
+    ++App::Instance()->perf.entity_num[ET_Android];
 }
 
 Android::~Android()
 {
     delete ai;
     ai = nullptr;
+    --App::Instance()->perf.entity_num[ET_Android];
 }
 
 void Android::Initialize()
diff --git a/server/gameserver/app.cc b/server/gameserver/app.cc
index 8e38614..7e803cf 100755
--- a/server/gameserver/app.cc
+++ b/server/gameserver/app.cc
@@ -75,12 +75,6 @@ static void SavePerfLog()
 
 void App::Init(int argc, char* argv[])
 {
-    #if 0
-    {
-        Vector2D dir;
-        dir.Normalize();
-    }
-    #endif
     signal(SIGPIPE, SIG_IGN);
     this->argc = argc;
     this->argv = argv;
diff --git a/server/gameserver/building.cc b/server/gameserver/building.cc
index 1d71fbc..0871a7c 100644
--- a/server/gameserver/building.cc
+++ b/server/gameserver/building.cc
@@ -5,14 +5,17 @@
 #include "metamgr.h"
 #include "room.h"
 #include "loot.h"
+#include "app.h"
 
 Building::Building():Entity()
 {
     entity_type = ET_Building;
+    ++App::Instance()->perf.entity_num[ET_Building];
 }
 
 Building::~Building()
 {
+    --App::Instance()->perf.entity_num[ET_Building];
 }
 
 void Building::Initialize()
diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 6924d2b..f3daef5 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -6,14 +6,17 @@
 #include "collider.h"
 #include "obstacle.h"
 #include "player.h"
+#include "app.h"
 
 Bullet::Bullet():Entity()
 {
     entity_type = ET_Bullet;
+    ++App::Instance()->perf.entity_num[ET_Bullet];
 }
 
 Bullet::~Bullet()
 {
+    --App::Instance()->perf.entity_num[ET_Bullet];
 }
 
 void Bullet::Initialize()
diff --git a/server/gameserver/entity.h b/server/gameserver/entity.h
index 5107f7c..a67157c 100644
--- a/server/gameserver/entity.h
+++ b/server/gameserver/entity.h
@@ -24,6 +24,7 @@ enum EntityType_e
 
    ET_Bullet = 20,
 
+   ET_Android = 30,
    ET_MAX
 };
 
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index e8184da..15e9047 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -1456,7 +1456,9 @@ void Human::SendUpdateMsg()
                     msg->clear_active_player_data();
                 }
             }
+            #if 1
             observer->SendNotifyMsg(*msg);
+            #endif
         }
         delete msg;
 
diff --git a/server/gameserver/loot.cc b/server/gameserver/loot.cc
index d441972..83bc457 100644
--- a/server/gameserver/loot.cc
+++ b/server/gameserver/loot.cc
@@ -5,14 +5,17 @@
 #include "room.h"
 #include "collider.h"
 #include "entity.h"
+#include "app.h"
 
 Loot::Loot():Entity()
 {
     entity_type = ET_Loot;
+    ++App::Instance()->perf.entity_num[ET_Loot];
 }
 
 Loot::~Loot()
 {
+    --App::Instance()->perf.entity_num[ET_Loot];
 }
 
 void Loot::Initialize()
diff --git a/server/gameserver/obstacle.cc b/server/gameserver/obstacle.cc
index 81b8c72..715b3ba 100644
--- a/server/gameserver/obstacle.cc
+++ b/server/gameserver/obstacle.cc
@@ -6,14 +6,17 @@
 #include "collider.h"
 #include "building.h"
 #include "human.h"
+#include "app.h"
 
 Obstacle::Obstacle():Entity()
 {
     entity_type = ET_Obstacle;
+    --App::Instance()->perf.entity_num[ET_Obstacle];
 }
 
 Obstacle::~Obstacle()
 {
+    --App::Instance()->perf.entity_num[ET_Obstacle];
 }
 
 void Obstacle::Initialize()
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 02d179a..e7bf192 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -11,16 +11,18 @@
 #include "obstacle.h"
 #include "building.h"
 #include "loot.h"
+#include "app.h"
 
 Player::Player():Human()
 {
     entity_type = ET_Player;
     entity_subtype = EST_Player;
+    ++App::Instance()->perf.entity_num[ET_Player];
 }
 
 Player::~Player()
 {
-
+    --App::Instance()->perf.entity_num[ET_Player];
 }
 
 void Player::Initialize()
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 1faa8d4..4d69849 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -699,6 +699,9 @@ bool Room::CanJoin(const std::string& accountid)
     if (gas_data.gas_mode != GasInactive) {
         return false;
     }
+    if (accountid_hash_.find(accountid) != accountid_hash_.end()) {
+        return false;
+    }
     if (App::Instance()->HasFlag(5)) {
         return accountid_hash_.size() < 1;
     } else {
diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index b63797f..95b4106 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -74,12 +74,12 @@ void RoomMgr::_CMJoin(f8::MsgHdr& hdr, const cs::CMJoin& msg)
                 inactive_room_hash_[room->room_uuid] = room;
                 room_hash_[room->room_uuid] = room;
             }
-            Player* hum = PlayerMgr::Instance()->CreatePlayerByCMJoin(hdr.socket_handle + i * 10, msg);
+            if (i == 0) {
+                {
+            Player* hum = PlayerMgr::Instance()->CreatePlayerByCMJoin(hdr.socket_handle, msg);
             hum->meta = hum_meta;
             room->AddPlayer(hum);
 
-            if (i == 0) {
-                {
                     cs::SMJoinedNotify notifymsg;
                     notifymsg.set_error_code(0);
                     room->FillSMJoinedNotify(hum, notifymsg);
diff --git a/server/gameserver/types.h b/server/gameserver/types.h
index b7d32a1..f176889 100755
--- a/server/gameserver/types.h
+++ b/server/gameserver/types.h
@@ -8,6 +8,7 @@ struct PerfMonitor
     long long out_data_size = 0;
     long long in_data_size = 0;
     long long read_count = 0;
+    std::array<int, 30> entity_num = {};
 };
 
 namespace MetaData
diff --git a/third_party/a8engine b/third_party/a8engine
index ff8c006..1cf5fb6 160000
--- a/third_party/a8engine
+++ b/third_party/a8engine
@@ -1 +1 @@
-Subproject commit ff8c00652d5367595c4adee8f95306ae1a46236b
+Subproject commit 1cf5fb6ba3f75c2b949962f9c12b39430c7ae2dc