diff --git a/game_server/net/session.py b/game_server/net/session.py
index 41533f8..0bd5547 100644
--- a/game_server/net/session.py
+++ b/game_server/net/session.py
@@ -9,6 +9,7 @@ from rail_proto import lib as protos
 from game_server.game.player.player_manager import PlayerManager
 from game_server.dummy import dummyprotolist
 import traceback
+from utils.time import cur_timestamp_ms
 
 class PlayerSession:
     def __init__(self, transport, session_id, client_addr, db):
@@ -16,6 +17,7 @@ class PlayerSession:
         self.session_id = session_id
         self.client_addr = client_addr
         self.kcp = Kcp(session_id, self.send_output)
+        self.kcp.set_wndsize(sndwnd=256, rcvwnd=256)
         self.kcp.set_nodelay(1, 5, 2, 0)
         self.is_destroyed = False
         self.db = db
@@ -23,6 +25,7 @@ class PlayerSession:
         self.player = PlayerManager()
         self.active = False
         self.last_received = asyncio.get_event_loop().time()
+        self.connect_time_ms = cur_timestamp_ms()
 
     def update_last_received(self):
         self.last_received = asyncio.get_event_loop().time()
@@ -51,7 +54,8 @@ class PlayerSession:
 
     async def consume(self, data):
         self.kcp.input(data)
-        self.kcp.update(asyncio.get_running_loop().time())
+        self.kcp.update(self.time())
+        self.kcp.flush()
 
         while True:
             packet = self.kcp.recv()
@@ -59,7 +63,7 @@ class PlayerSession:
                 break
             await self.handle_packet(packet)
 
-        self.kcp.update(asyncio.get_running_loop().time())
+        #self.kcp.update(self.time())
 
     async def handle_packet(self, packet):
         net_packet = NetPacket.from_bytes(packet)
@@ -130,4 +134,9 @@ class PlayerSession:
     async def send(self, packet):
         self.kcp.send(packet.to_bytes())
         self.kcp.flush()
-        self.kcp.update(asyncio.get_running_loop().time())
+        cmd_id = packet.cmd_type
+        request_name = cmd.get_key_by_value(cmd_id)
+        Info(f"Sent cmd: {request_name}({cmd_id})")
+
+    def time(self):
+        return (cur_timestamp_ms()) - self.connect_time_ms