diff --git a/connstat2/connstat2_test.go b/connstat2/connstat2_test.go
index 49a70d5..12c302a 100644
--- a/connstat2/connstat2_test.go
+++ b/connstat2/connstat2_test.go
@@ -4,34 +4,89 @@ import (
 	"github.com/q191201771/nezha/assert"
 	"net"
 	"testing"
+	"time"
 )
 
-func startMockServer(t assert.TestingT) {
-	l, err := net.Listen("tcp", ":10027")
-	assert.Equal(t, nil , err)
+type MockServer struct {
+	l net.Listener
+}
+
+func (ms *MockServer)start() (err error) {
+	ms.l, err = net.Listen("tcp", ":10027")
+	if err != nil {
+		return err
+	}
 	go func() {
-		//for {
-			conn, err := l.Accept()
-			assert.Equal(t, nil , err)
+		for {
+			conn, err := ms.l.Accept()
+			if err != nil {
+				//fmt.Println(err)
+				return
+			}
 			go func() {
 				buf := make([]byte, 8)
 				for {
 					_, err = conn.Read(buf)
-					assert.Equal(t, nil , err)
+					if err != nil {
+						//fmt.Println(err)
+						return
+					}
 				}
 			}()
-		//}
+		}
 	}()
+	return
 }
 
-func Benchmark(b *testing.B) {
-	startMockServer(b)
-	//time.Sleep(time.Duration(1) * time.Second)
+func (ms *MockServer)stop() {
+	ms.l.Close()
+}
+
+var n = 1000
 
-	conn, err := net.Dial("tcp", ":10027")
-	assert.Equal(b, nil , err)
+func BenchmarkRaw(b *testing.B) {
+	var ms MockServer
+	ms.start()
 	buf := make([]byte, 8)
+
+	var conns []net.Conn
+
+	for i := 0; i < n; i++ {
+		conn, err := net.Dial("tcp", ":10027")
+		assert.Equal(b, nil , err)
+		conns = append(conns, conn)
+	}
+
+	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		conn.Write(buf)
+		for j := 0; j < n; j++ {
+			conns[j].Write(buf)
+		}
 	}
-}
\ No newline at end of file
+
+	ms.stop()
+}
+
+func BenchmarkDeadline(b *testing.B) {
+	var ms MockServer
+	ms.start()
+	buf := make([]byte, 8)
+
+	var conns []net.Conn
+
+	for i := 0; i < n; i++ {
+		conn, err := net.Dial("tcp", ":10027")
+		assert.Equal(b, nil , err)
+		conns = append(conns, conn)
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		for j := 0; j < n; j++ {
+			conns[j].SetWriteDeadline(time.Now().Add(1 * time.Second))
+			conns[j].Write(buf)
+		}
+	}
+
+	ms.stop()
+}
diff --git a/log/log_test.go b/log/log_test.go
index 7abe5f2..bd0bffd 100644
--- a/log/log_test.go
+++ b/log/log_test.go
@@ -1,8 +1,8 @@
 package log
 
 import (
-	"testing"
 	"github.com/q191201771/nezha/assert"
+	"testing"
 )
 
 func TestLogger(t *testing.T) {
diff --git a/test.sh b/test.sh
index 4f3d016..c8b2de7 100755
--- a/test.sh
+++ b/test.sh
@@ -13,3 +13,4 @@ done
 
 # go test -race -coverprofile=profile.out -covermode=atomic && go tool cover -html=profile.out -o coverage.html && open coverage.html
 # go test -test.bench=".*"
+# go test -bench=. -benchtime=10s