toggle writing method to nodelay for responsivness

README.md

@@ -31,6 +31,13 @@ Increase the number of open files on your server, as:
 
 `ulimit -n 65535`, or write it in `~/.bashrc`.
 
+Increase the OS UDP buffers to improve performance, as:
+
+```
+net.core.rmem_max=26214400
+net.core.rmem_default=26214400
+```
+
 Download a corresponding precompiled [Releases](https://github.com/xtaci/kcptun/releases).
 
 ```

client/main.go

@@ -358,7 +358,7 @@ func main() {
 				return nil, errors.Wrap(err, "createConn()")
 			}
 			kcpconn.SetStreamMode(true)
-			kcpconn.SetWriteDelay(true)
+			kcpconn.SetWriteDelay(false)
 			kcpconn.SetNoDelay(config.NoDelay, config.Interval, config.Resend, config.NoCongestion)
 			kcpconn.SetWindowSize(config.SndWnd, config.RcvWnd)
 			kcpconn.SetMtu(config.MTU)

server/main.go

@@ -375,7 +375,7 @@ func main() {
 			if conn, err := lis.AcceptKCP(); err == nil {
 				log.Println("remote address:", conn.RemoteAddr())
 				conn.SetStreamMode(true)
-				conn.SetWriteDelay(true)
+				conn.SetWriteDelay(false)
 				conn.SetNoDelay(config.NoDelay, config.Interval, config.Resend, config.NoCongestion)
 				conn.SetMtu(config.MTU)
 				conn.SetWindowSize(config.SndWnd, config.RcvWnd)