diff --git a/worker/agent.go b/worker/agent.go
index 76fbbde..b736b0a 100644
--- a/worker/agent.go
+++ b/worker/agent.go
@@ -39,6 +39,11 @@ func (a *agent) Connect() (err error) {
 }
 
 func (a *agent) work() {
+	defer func() {
+		if err := recover(); err != nil {
+			a.worker.err(err.(error))
+		}
+	}()
 	var inpack *inPack
 	var l int
 	var err error
diff --git a/worker/inpack_test.go b/worker/inpack_test.go
index b1c099f..f852a04 100644
--- a/worker/inpack_test.go
+++ b/worker/inpack_test.go
@@ -60,3 +60,14 @@ func TestInPack(t *testing.T) {
 		}
 	}
 }
+
+func BenchmarkDecode(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+		for _, v := range inpackcases {
+			_, _, err := decodeInPack([]byte(v["src"]))
+			if err != nil {
+				b.Error(err)
+			}
+		}
+    }
+}
diff --git a/worker/outpack_test.go b/worker/outpack_test.go
index a377445..6ae9423 100644
--- a/worker/outpack_test.go
+++ b/worker/outpack_test.go
@@ -81,3 +81,19 @@ func TestOutPack(t *testing.T) {
 		}
 	}
 }
+
+func BenchmarkEncode(b *testing.B) {
+    for i := 0; i < b.N; i++ {
+		for k, v := range outpackcases {
+			outpack := getOutPack()
+			outpack.dataType = k
+			if handle, ok := v["handle"]; ok {
+				outpack.handle = handle
+			}
+			if data, ok := v["data"]; ok {
+				outpack.data = []byte(data)
+			}
+			outpack.Encode()
+		}
+    }
+}