upd

README.en.md

@@ -1,5 +1,5 @@
 # <img src="logo.png" alt="kcptun" height="60px" /> 
-[![GoDoc][1]][2] [![Release][13]][14] [![Powered][17]][18] [![Build Status][3]][4] [![Go Report Card][5]][6] [![Downloads][15]][16] [![Gitter][19]][20]
+[![GoDoc][1]][2] [![Release][13]][14] [![Powered][17]][18] [![MIT licensed][11]][12] [![Build Status][3]][4] [![Go Report Card][5]][6] [![Downloads][15]][16] [![Gitter][19]][20]
 [1]: https://godoc.org/github.com/xtaci/kcptun?status.svg
 [2]: https://godoc.org/github.com/xtaci/kcptun
 [3]: https://travis-ci.org/xtaci/kcptun.svg?branch=master
@@ -10,8 +10,8 @@
 [8]: https://raw.githubusercontent.com/xtaci/kcptun/master/LICENSE.md
 [9]: https://img.shields.io/github/stars/xtaci/kcptun.svg
 [10]: https://github.com/xtaci/kcptun/stargazers
-[11]: https://img.shields.io/github/forks/xtaci/kcptun.svg
-[12]: https://github.com/xtaci/kcptun/network
+[11]: https://img.shields.io/badge/license-MIT-blue.svg
+[12]: LICENSE.md
 [13]: https://img.shields.io/github/release/xtaci/kcptun.svg
 [14]: https://github.com/xtaci/kcptun/releases/latest
 [15]: https://img.shields.io/github/downloads/xtaci/kcptun/total.svg?maxAge=1800
@@ -59,6 +59,8 @@ CLIENT:   -mtu 1400 -sndwnd 256 -rcvwnd 2048 -mode fast2 -dscp 46
 > Step 1：Increase client rcvwnd & server sndwnd simultaneously & gradually。       
 > Step 2：Try download something and observer, if the bandwidth usage is close the limit then stop, otherwise goto step 1.     
 
+***NOTICE: if too much retranmission happens, it's quite possible the windows are too large***
+
 ### *Traffic Control* :lollipop: 
 ***Intended audience : for those server's bandwidth is quite limited.***      
 

README.md

@@ -1,5 +1,5 @@
 # <img src="logo.png" alt="kcptun" height="60px" /> 
-[![GoDoc][1]][2] [![Release][13]][14] [![Powered][17]][18] [![Build Status][3]][4] [![Go Report Card][5]][6] [![Downloads][15]][16] [![Gitter][19]][20]
+[![GoDoc][1]][2] [![Release][13]][14] [![Powered][17]][18] [![MIT licensed][11]][12] [![Build Status][3]][4] [![Go Report Card][5]][6] [![Downloads][15]][16] [![Gitter][19]][20]
 [1]: https://godoc.org/github.com/xtaci/kcptun?status.svg
 [2]: https://godoc.org/github.com/xtaci/kcptun
 [3]: https://travis-ci.org/xtaci/kcptun.svg?branch=master
@@ -8,10 +8,8 @@
 [6]: https://goreportcard.com/report/github.com/xtaci/kcptun
 [7]: https://img.shields.io/badge/license-MIT-blue.svg
 [8]: https://raw.githubusercontent.com/xtaci/kcptun/master/LICENSE.md
-[9]: https://img.shields.io/github/stars/xtaci/kcptun.svg
-[10]: https://github.com/xtaci/kcptun/stargazers
-[11]: https://img.shields.io/github/forks/xtaci/kcptun.svg
-[12]: https://github.com/xtaci/kcptun/network
+[11]: https://img.shields.io/badge/license-MIT-blue.svg
+[12]: LICENSE.md
 [13]: https://img.shields.io/github/release/xtaci/kcptun.svg
 [14]: https://github.com/xtaci/kcptun/releases/latest
 [15]: https://img.shields.io/github/downloads/xtaci/kcptun/total.svg?maxAge=1800
@@ -54,10 +52,21 @@ CLIENT:   -mtu 1400 -sndwnd 256 -rcvwnd 2048 -mode fast2 -dscp 46
 *巭孬嫑乱动* 
 ```
 
+两端参数必须一致的有:
+* datashard
+* parityshard
+* nocomp
+* key
+* crypt
+
+其余为两边可独立设定的参数
+
 *简易自我调优方法*：
 > 第一步：同时在两端逐步增大client rcvwnd和server sndwnd;        
 > 第二步：尝试下载，观察如果带宽利用率（服务器＋客户端两端都要观察）接近物理带宽则停止，否则跳转到第一步。
 
+***注意：产生大量重传时，一定是窗口偏大了***
+
 *带宽计算公式*：
 ```
 在不丢包的情况下，有最大-rcvwnd 个数据包在网络上正在向你传输，以平均数据包大小avgsize计算，在任意时刻，有：     
@@ -188,7 +197,7 @@ type Snmp struct {
 
 对该项目的捐款将用于[gonet/2](http://gonet2.github.io/)游戏服务器框架的研发。     
 
-> 特别感谢: 郑H立, 南D风, Li, 七q, 凌J，昶，Les*ables 等，名字已做特殊处理。
+> 特别感谢: 郑H立, 南D风, Li, 七q, 凌J，昶，Les*ables, Ky*n等，名字已做特殊处理。
 
 ### *参考资料* :paperclip:
 1. https://github.com/skywind3000/kcp -- KCP - A Fast and Reliable ARQ Protocol.

client/main.go

@@ -274,7 +274,7 @@ func main() {
 				EnableKeepAlive:        true,
 				KeepAliveInterval:      30 * time.Second,
 				ConnectionWriteTimeout: 30 * time.Second,
-				MaxStreamWindowSize:    16777216,
+				MaxStreamWindowSize:    uint32(sockbuf),
 				LogOutput:              os.Stderr,
 			}
 			var session *yamux.Session

server/main.go

@@ -53,17 +53,9 @@ func newCompStream(conn net.Conn) *compStream {
 }
 
 // handle multiplex-ed connection
-func handleMux(conn io.ReadWriteCloser, target string) {
+func handleMux(conn io.ReadWriteCloser, target string, config *yamux.Config) {
 	// stream multiplex
 	var mux *yamux.Session
-	config := &yamux.Config{
-		AcceptBacklog:          256,
-		EnableKeepAlive:        true,
-		KeepAliveInterval:      30 * time.Second,
-		ConnectionWriteTimeout: 30 * time.Second,
-		MaxStreamWindowSize:    16777216,
-		LogOutput:              os.Stderr,
-	}
 	m, err := yamux.Server(conn, config)
 	if err != nil {
 		log.Println(err)
@@ -276,7 +268,14 @@ func main() {
 		if err := lis.SetWriteBuffer(sockbuf); err != nil {
 			log.Println("SetWriteBuffer:", err)
 		}
-
+		config := &yamux.Config{
+			AcceptBacklog:          256,
+			EnableKeepAlive:        true,
+			KeepAliveInterval:      30 * time.Second,
+			ConnectionWriteTimeout: 30 * time.Second,
+			MaxStreamWindowSize:    uint32(sockbuf),
+			LogOutput:              os.Stderr,
+		}
 		for {
 			if conn, err := lis.Accept(); err == nil {
 				log.Println("remote address:", conn.RemoteAddr())
@@ -288,9 +287,9 @@ func main() {
 				conn.SetKeepAlive(keepalive)
 
 				if nocomp {
-					go handleMux(conn, target)
+					go handleMux(conn, target, config)
 				} else {
-					go handleMux(newCompStream(conn), target)
+					go handleMux(newCompStream(conn), target, config)
 				}
 			} else {
 				log.Println(err)