diff --git a/rpc/rpchandler.go b/rpc/rpchandler.go
index 7bf562c..750184f 100644
--- a/rpc/rpchandler.go
+++ b/rpc/rpchandler.go
@@ -42,7 +42,9 @@ func Errorf(format string, a ...interface{}) *RpcError {
 type RpcMethodInfo struct {
 	method reflect.Method
 	iparam reflect.Value
+	iInParam interface{}
 	oParam reflect.Value
+	iOutParam interface{}
 	additionParam reflect.Value
 	//addition *IRawAdditionParam
 	hashAdditionParam bool
@@ -79,6 +81,7 @@ type IRpcHandler interface {
 	GoNode(nodeId int,serviceMethod string,args interface{}) error
 	RawGoNode(rpcProcessorType RpcProcessorType,nodeId int,serviceMethod string,args []byte,additionParam interface{}) error
 	RawCastGo(rpcProcessorType RpcProcessorType,serviceMethod string,args []byte,additionParam interface{})
+	IsSingleCoroutine() bool
 }
 
 var rawAdditionParamValueNull reflect.Value
@@ -153,6 +156,7 @@ func (slf *RpcHandler) suitableMethods(method reflect.Method) error {
 	}
 
 	rpcMethodInfo.iparam = reflect.New(typ.In(parIdx).Elem()) //append(rpcMethodInfo.iparam,)
+	rpcMethodInfo.iInParam  = reflect.New(typ.In(parIdx).Elem()).Interface()
 	pt,_ := GetProcessorType(rpcMethodInfo.iparam.Interface())
 	rpcMethodInfo.rpcProcessorType = pt
 
@@ -243,9 +247,16 @@ func (slf *RpcHandler) HandlerRpcRequest(request *RpcRequest) {
 
 	var paramList []reflect.Value
 	var err error
-	iparam := reflect.New(v.iparam.Type().Elem()).Interface()
+	var iParam interface{}
+	//单协程下减少gc
+	if slf.IsSingleCoroutine(){
+		iParam = v.iInParam
+	}else{
+		iParam = reflect.New(v.iparam.Type().Elem()).Interface()
+	}
+
 	if request.bLocalRequest == false {
-		err = request.rpcProcessor.Unmarshal(request.RpcRequestData.GetInParam(),iparam)
+		err = request.rpcProcessor.Unmarshal(request.RpcRequestData.GetInParam(),iParam)
 		if err!=nil {
 			rerr := Errorf("Call Rpc %s Param error %+v",request.RpcRequestData.GetServiceMethod(),err)
 			log.Error("%s",rerr.Error())
@@ -256,7 +267,7 @@ func (slf *RpcHandler) HandlerRpcRequest(request *RpcRequest) {
 		}
 	}else {
 		if request.localRawParam!=nil {
-			err = request.rpcProcessor.Unmarshal(request.localRawParam,iparam)
+			err = request.rpcProcessor.Unmarshal(request.localRawParam,iParam)
 			if err!=nil {
 				rerr := Errorf("Call Rpc %s Param error %+v",request.RpcRequestData.GetServiceMethod(),err)
 				log.Error("%s",rerr.Error())
@@ -266,7 +277,7 @@ func (slf *RpcHandler) HandlerRpcRequest(request *RpcRequest) {
 				return
 			}
 		}else {
-			iparam = request.localParam
+			iParam = request.localParam
 		}
 	}
 
@@ -281,11 +292,13 @@ func (slf *RpcHandler) HandlerRpcRequest(request *RpcRequest) {
 		}
 	}
 
-	paramList = append(paramList,reflect.ValueOf(iparam))
+	paramList = append(paramList,reflect.ValueOf(iParam))
 	var oParam reflect.Value
 	if v.oParam.IsValid() {
 		if request.localReply!=nil {
 			oParam = reflect.ValueOf(request.localReply) //输出参数
+		}else if slf.IsSingleCoroutine()==true{
+			oParam = v.oParam
 		}else{
 			oParam = reflect.New(v.oParam.Type().Elem())
 		}
@@ -573,11 +586,10 @@ func (slf *RpcHandler) GetName() string{
 	return slf.rpcHandler.GetName()
 }
 
+func (slf *RpcHandler) IsSingleCoroutine() bool{
+	return slf.rpcHandler.IsSingleCoroutine()
+}
 
-//func (slf *RpcHandler) asyncCallRpc(serviceMethod string,mutiCoroutine bool,callback interface{},args ...interface{}) error {
-//func (slf *RpcHandler) callRpc(serviceMethod string,reply interface{},mutiCoroutine bool,args ...interface{}) error {
-//func (slf *RpcHandler) goRpc(serviceMethod string,mutiCoroutine bool,args ...interface{}) error {
-//(reply *int,err error) {}
 func (slf *RpcHandler) AsyncCall(serviceMethod string,args interface{},callback interface{}) error {
 	return slf.asyncCallRpc(0,serviceMethod,args,callback)
 }
@@ -586,7 +598,6 @@ func (slf *RpcHandler) Call(serviceMethod string,args interface{},reply interfac
 	return slf.callRpc(0,serviceMethod,args,reply)
 }
 
-
 func (slf *RpcHandler) Go(serviceMethod string,args interface{}) error {
 	return slf.goRpc(nil,false,0,serviceMethod,args)
 }
diff --git a/service/service.go b/service/service.go
index 869cf13..b4a3b59 100644
--- a/service/service.go
+++ b/service/service.go
@@ -210,4 +210,7 @@ func (slf *Service) RegEventReciverFunc(eventType event.EventType,reciver event.
 
 func (slf *Service) UnRegEventReciverFun(eventType event.EventType,reciver event.IEventHandler){
 	slf.eventProcessor.UnRegEventReciverFun(eventType,reciver)
+}
+func (slf *Service) IsSingleCoroutine() bool {
+	return slf.gorouterNum == 1
 }
\ No newline at end of file