diff --git a/.gitignore b/.gitignore
index cb30291..11714e1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ TransX
 server.log*
 client.log*
 applog
+profile
\ No newline at end of file
diff --git a/benckmark.go b/benckmark.go
index c14bdbe..761272f 100644
--- a/benckmark.go
+++ b/benckmark.go
@@ -58,19 +58,26 @@ func randMillionSecond() time.Duration {
 
 func attack() {
 	c := make(chan int)
-	for i := 0; i < 1; i++ {
+	for i := 0; i < 10; i++ {
 		time.Sleep(time.Millisecond * randMillionSecond())
 		go doHttp(c)
 	}
-	for i := 0; i < 1; i++ {
+	for i := 0; i < 10; i++ {
 		<-c
 	}
 	log.Println("Finish")
 }
 
-func main() {
-	llog.LogTo("applog/log.txt", "INFO")
-	defer profile.Start(profile.CPUProfile).Stop()
+func main1() {
+	cfg := profile.Config{
+		MemProfile:     true,
+		ProfilePath:    "./profile", // store profiles in current directory
+		NoShutdownHook: true,        // do not hook SIGINT
+		CPUProfile:     true,
+		BlockProfile:   true,
+	}
+	llog.LogTo("applog/log.txt", "ERROR")
+	defer profile.Start(&cfg).Stop()
 	benchSeed = 0
 	go transClient()
 	go transServer()
diff --git a/cli/cli.go b/cli/cli.go
index ed07927..f014212 100644
--- a/cli/cli.go
+++ b/cli/cli.go
@@ -9,6 +9,7 @@ var DestPort int
 var ListenPort int
 var EncryptSide string
 var LogTo string
+var ProfilePort int
 
 func init() {
 	flag.StringVar(&DestIP, "destip", "", "Destination IP")
@@ -16,4 +17,5 @@ func init() {
 	flag.StringVar(&LogTo, "log", "stdout", "Log to where")
 	flag.IntVar(&DestPort, "destport", 0, "Destination Port")
 	flag.IntVar(&ListenPort, "listenport", 0, "Listen Port")
+	flag.IntVar(&ProfilePort, "profileport", 0, "Profile Port")
 }
diff --git a/client.bat b/client.bat
index c19093c..9eb9b01 100644
--- a/client.bat
+++ b/client.bat
@@ -1 +1 @@
-.\TransX -destip 127.0.0.1 -destport 1082 -listenport 1080 -encrypt client -log applog/client.log
\ No newline at end of file
+.\TransX -destip 127.0.0.1 -destport 1082 -listenport 1080 -encrypt client -log applog/client.log -profileport 6062
\ No newline at end of file
diff --git a/main.go b/main.go
index e2413c5..fa0b3fe 100644
--- a/main.go
+++ b/main.go
@@ -7,7 +7,9 @@ import (
 	"github.com/TransX/cli"
 	"github.com/TransX/log"
 	"github.com/TransX/protocol"
-	"github.com/davecheney/profile"
+	// "github.com/davecheney/profile"
+	"net/http"
+	_ "net/http/pprof"
 	"strconv"
 )
 
@@ -23,10 +25,15 @@ func tunnel() {
 
 }
 
-func main1() {
-	defer profile.Start(profile.CPUProfile).Stop()
+func main() {
+	// defer profile.Start(profile.CPUProfile).Stop()
 	flag.Parse()
 	fmt.Println("Hello World!")
-	log.LogTo(cli.LogTo, "INFO")
+	log.LogTo(cli.LogTo, "ERROR")
+	if cli.ProfilePort != 0 {
+		go func() {
+			http.ListenAndServe("0.0.0.0:"+strconv.Itoa(cli.ProfilePort), nil)
+		}()
+	}
 	tunnel()
 }
diff --git a/protocol/tcp.go b/protocol/tcp.go
index 1309f6b..3af5ea8 100644
--- a/protocol/tcp.go
+++ b/protocol/tcp.go
@@ -97,7 +97,7 @@ func (this *TransTCP) Start(listenPort, destIP, destPort string, clientOrServer
 			}()
 
 		} else {
-			log.Info("Failed to accept incoming connection. %s", err)
+			log.Error("Failed to accept incoming connection. %s", err)
 		}
 	}
 }
diff --git a/protocol/tunnel.go b/protocol/tunnel.go
index cce921a..8a6d129 100644
--- a/protocol/tunnel.go
+++ b/protocol/tunnel.go
@@ -61,7 +61,7 @@ func (this *Tunnel) Run() { //单向的，从src发送到dest
 	cipherDirection := this.cipherDirection
 	id := this.id
 	defer func() {
-		log.Info("tunnel id %s ends", id)
+		log.Debug("tunnel id %s ends", id)
 		//注销
 		this.unregChan <- this
 		if r := recover(); r != nil {
@@ -89,7 +89,7 @@ func (this *Tunnel) Run() { //单向的，从src发送到dest
 		if err != nil {
 			log.Panic("Read panic. Tunnel id: %s. Remote Add: %s Local: %s. Err:%s", id, src.RemoteAddr().String(), src.LocalAddr().String(), err.Error())
 		}
-		log.Info("Reived %d bytes from %s. Tunnel: id %s", nByte, src.RemoteAddr().String(), id)
+		log.Debug("Reived %d bytes from %s. Tunnel: id %s", nByte, src.RemoteAddr().String(), id)
 		if cipherDirection != SEND {
 			sendCarrier.Cipher = nil
 		}
@@ -97,7 +97,7 @@ func (this *Tunnel) Run() { //单向的，从src发送到dest
 		if err != nil {
 			log.Panic("Write panic. ID: %s, Err: %s, Remote Add: %s", id, err, dest.RemoteAddr().String())
 		}
-		log.Info("Write %d bytes from %s to %s. Tunnel: %s . 18 bytes %x", n, dest.LocalAddr(), dest.RemoteAddr().String(), id, sendCarrier.Cache[:18])
+		log.Debug("Write %d bytes from %s to %s. Tunnel: %s . 18 bytes %x", n, dest.LocalAddr(), dest.RemoteAddr().String(), id, sendCarrier.Cache[:18])
 	}
 
 }
diff --git a/server.bat b/server.bat
index 70ce34d..520ae90 100644
--- a/server.bat
+++ b/server.bat
@@ -1 +1 @@
-.\TransX -destip 127.0.0.1 -destport 1084 -listenport 1082 -encrypt server -log applog/server.log
\ No newline at end of file
+.\TransX -destip 127.0.0.1 -destport 1084 -listenport 1082 -encrypt server -log applog/server.log -profileport 6060
\ No newline at end of file
diff --git a/stat/tunnelstatus.go b/stat/tunnelstatus.go
index fae7fea..24f03c9 100644
--- a/stat/tunnelstatus.go
+++ b/stat/tunnelstatus.go
@@ -54,11 +54,11 @@ func (this *TunnelStatusManager) chanListener() {
 		select {
 		case r := <-this.regChan:
 			this.register(r)
-			log.Info("A tunnel registered")
-			log.Info(this.QueryStatString())
+			log.Debug("A tunnel registered")
+			log.Debug(this.QueryStatString())
 		case ur := <-this.unregChan:
 			this.unregister(ur)
-			log.Info("A tunnel unregistered")
+			log.Debug("A tunnel unregistered")
 		}
 	}
 }
diff --git a/tscipher/cipher.go b/tscipher/cipher.go
index df3e9c1..e61d29f 100644
--- a/tscipher/cipher.go
+++ b/tscipher/cipher.go
@@ -155,7 +155,7 @@ func SendData(carrier *Carrier, nByte int) (n int, err error) {
 	//打包
 	wraped := WrapPackage(encrypedByte[:nByte])
 	n, err = carrier.Conn.Write(wraped)
-	log.Info("Ready to write id %s, 18 byte %s", carrier.AttachedTunnelID, string(wraped[:18]))
+	log.Debug("Ready to write id %s, 18 byte %s", carrier.AttachedTunnelID, string(wraped[:18]))
 	copy(carrier.Cache, encrypedByte[:nByte]) // in case of debugging
 	return
 }
@@ -175,7 +175,7 @@ func ReceiveData(carrier *Carrier) (n int, err error) {
 	// 		log.Error("ReceiveData err %s", r)
 	// 	}
 	// }()
-	log.Info("id %s wrapedPackage := carrier.GetReceiveBuff()", carrier.AttachedTunnelID)
+	log.Debug("id %s wrapedPackage := carrier.GetReceiveBuff()", carrier.AttachedTunnelID)
 	wrapedPackage := carrier.GetReceiveBuff() //make([]byte, 0, cap(carrier.Cache))
 	var packageData []byte
 	var _rest []byte
@@ -191,11 +191,11 @@ func ReceiveData(carrier *Carrier) (n int, err error) {
 		log.Debug("id %s length of package %d", carrier.AttachedTunnelID, len(packageData))
 		if err == nil {
 			//够一个完整的包
-			log.Info("id %s capBuff := cap(carrier.GetReceiveBuff())", carrier.AttachedTunnelID)
+			log.Debug("id %s capBuff := cap(carrier.GetReceiveBuff())", carrier.AttachedTunnelID)
 			capBuff := cap(carrier.GetReceiveBuff())
 			_buff := make([]byte, 0, capBuff) //释放
 			_buff = append(_buff, _rest...)
-			log.Info("id %s carrier.SetReceiveBuff(_buff)", carrier.AttachedTunnelID)
+			log.Debug("id %s carrier.SetReceiveBuff(_buff)", carrier.AttachedTunnelID)
 			carrier.SetReceiveBuff(_buff)
 			break
 		}