diff --git a/server_std.go b/server_std.go
index 49793d4..19679be 100644
--- a/server_std.go
+++ b/server_std.go
@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package gev
@@ -28,7 +29,7 @@ type Handler interface {
 type Server struct {
 	listener    net.Listener
 	callback    Handler
-	connections []*Connection
+	connections stdsync.Map
 
 	timingWheel *timingwheel.TimingWheel
 	opts        *Options
@@ -71,33 +72,39 @@ func (s *Server) Start() {
 	sw := sync.WaitGroupWrapper{}
 	s.timingWheel.Start()
 
-	sw.AddAndRun(func() {
-		for {
-			select {
-			case <-s.dying:
-				return
+	if s.opts.NumLoops <= 0 {
+		s.opts.NumLoops = 1
+	}
+	for i := 0; i < s.opts.NumLoops; i++ {
+		sw.AddAndRun(func() {
+			for {
+				select {
+				case <-s.dying:
+					return
 
-			default:
-				conn, err := s.listener.Accept()
-				if err != nil {
-					log.Errorf("accept error: %v", err)
-					continue
+				default:
+					conn, err := s.listener.Accept()
+					if err != nil {
+						log.Errorf("accept error: %v", err)
+						continue
+					}
+
+					connection := NewConnection(conn, s.opts.Protocol, s.timingWheel, s.opts.IdleTime, s.callback)
+					s.connections.Store(connection, struct{}{})
+
+					sw.AddAndRun(func() {
+						connection.readLoop()
+					})
+					sw.AddAndRun(func() {
+						connection.writeLoop()
+					})
+					sw.AddAndRun(func() {
+						s.callback.OnConnect(connection)
+					})
 				}
-
-				connection := NewConnection(conn, s.opts.Protocol, s.timingWheel, s.opts.IdleTime, s.callback)
-				s.connections = append(s.connections, connection)
-
-				s.callback.OnConnect(connection)
-
-				sw.AddAndRun(func() {
-					connection.readLoop()
-				})
-				sw.AddAndRun(func() {
-					connection.writeLoop()
-				})
 			}
-		}
-	})
+		})
+	}
 
 	s.running.Set(true)
 
@@ -116,9 +123,13 @@ func (s *Server) Stop() {
 			log.Error(err)
 		}
 
-		for _, c := range s.connections {
+		s.connections.Range(func(key, value interface{}) bool {
+			c := key.(*Connection)
 			c.Close()
-		}
+
+			return true
+		})
+
 	}
 }
 
@@ -253,8 +264,6 @@ func (c *Connection) Send(data interface{}, opts ...ConnectionOption) error {
 // Close 关闭连接
 func (c *Connection) Close() error {
 	if c.connected.Get() {
-		log.Info("Close ", c.PeerAddr())
-
 		close(c.dying)
 		c.connected.Set(false)
 		c.callBack.OnClose(c)
@@ -272,9 +281,6 @@ func (c *Connection) Close() error {
 
 // ShutdownWrite 关闭可写端，等待读取完接收缓冲区所有数据
 func (c *Connection) ShutdownWrite() error {
-	log.Info("ShutdownWrite ", c.PeerAddr())
-
-	//return nil
 	return c.Close()
 }
 
@@ -302,7 +308,6 @@ func (c *Connection) readLoop() {
 			return
 
 		default:
-			//c.conn.SetReadDeadline(time.Now().Add(time.Second))
 			n, err := c.conn.Read(buf)
 			if err != nil {
 				if err != io.EOF {
@@ -345,8 +350,6 @@ func (c *Connection) writeLoop() {
 				continue
 			}
 
-			c.conn.SetWriteDeadline(time.Now().Add(time.Second))
-
 			first, end := c.outBuffer.PeekAll()
 			n, err := c.conn.Write(first)
 			if err != nil {
@@ -429,14 +432,10 @@ func (c *Connection) closeTimeoutConn() func() {
 	return func() {
 		now := time.Now()
 		intervals := now.Sub(time.Unix(c.activeTime.Get(), 0))
-		log.Info("closeTimeoutConn ", intervals)
 
 		if intervals >= c.idleTime {
-			log.Info("closeTimeoutConn ", c.conn.RemoteAddr())
 			_ = c.Close()
 		} else {
-			log.Info("timingWheel.AfterFunc ", c.idleTime-intervals)
-
 			timer := c.timingWheel.AfterFunc(c.idleTime-intervals, c.closeTimeoutConn())
 			c.timer.Store(timer)
 		}