diff --git a/example/go.sum b/example/go.sum
index 3ea373d..4f77231 100644
--- a/example/go.sum
+++ b/example/go.sum
@@ -33,8 +33,6 @@ cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohl
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-dubbo.apache.org/dubbo-go/v3 v3.0.0-rc2.0.20211007054845-07e6f4405545 h1:7hwhZ5YPaRexPOyHVTFcYqIsBcB8s/uFdEyKts5yXS4=
-dubbo.apache.org/dubbo-go/v3 v3.0.0-rc2.0.20211007054845-07e6f4405545/go.mod h1:84/HH7kK42HDa3DXrtj0Eyy2bVBstV3Z3sF0s4NcXZY=
 dubbo.apache.org/dubbo-go/v3 v3.0.0-rc2.0.20211011045321-e213f97fda57 h1:8s534SRhqQ7Kl6SNJKOoS2PtmEWuGz6zpEj9hixvs/A=
 dubbo.apache.org/dubbo-go/v3 v3.0.0-rc2.0.20211011045321-e213f97fda57/go.mod h1:84/HH7kK42HDa3DXrtj0Eyy2bVBstV3Z3sF0s4NcXZY=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
@@ -182,8 +180,8 @@ github.com/dubbogo/go-zookeeper v1.0.3/go.mod h1:fn6n2CAEer3novYgk9ULLwAjuV8/g4D
 github.com/dubbogo/gost v1.9.0/go.mod h1:pPTjVyoJan3aPxBPNUX0ADkXjPibLo+/Ib0/fADXSG8=
 github.com/dubbogo/gost v1.11.12/go.mod h1:vIcP9rqz2KsXHPjsAwIUtfJIJjppQLQDcYaZTy/61jI=
 github.com/dubbogo/gost v1.11.17/go.mod h1:vIcP9rqz2KsXHPjsAwIUtfJIJjppQLQDcYaZTy/61jI=
-github.com/dubbogo/gost v1.11.18-0.20211011142005-8a95129ef6e2 h1:UU3dQZo/NE6VUf6ib5lyAjDfxuI6qX+aq8OZZx649JE=
-github.com/dubbogo/gost v1.11.18-0.20211011142005-8a95129ef6e2/go.mod h1:vIcP9rqz2KsXHPjsAwIUtfJIJjppQLQDcYaZTy/61jI=
+github.com/dubbogo/gost v1.11.18 h1:e9WRvDQut6cePYcQEOUC15vGSfftO7q9G2+Vw2s4CHE=
+github.com/dubbogo/gost v1.11.18/go.mod h1:vIcP9rqz2KsXHPjsAwIUtfJIJjppQLQDcYaZTy/61jI=
 github.com/dubbogo/jsonparser v1.0.1/go.mod h1:tYAtpctvSP/tWw4MeelsowSPgXQRVHHWbqL6ynps8jU=
 github.com/dubbogo/net v0.0.4 h1:Rn9aMPZwOiRE22YhtxmDEE3H0Q3cfVRNhuEjNMelJ/8=
 github.com/dubbogo/net v0.0.4/go.mod h1:1CGOnM7X3he+qgGNqjeADuE5vKZQx/eMSeUkpU3ujIc=
diff --git a/internal/codec/codec_impl/codec_impl.go b/internal/codec/codec_impl/codec_impl.go
index 315e305..bff4ad0 100644
--- a/internal/codec/codec_impl/codec_impl.go
+++ b/internal/codec/codec_impl/codec_impl.go
@@ -155,7 +155,7 @@ func (h *GenericCodec) UnmarshalRequest(data []byte) ([]interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
-	result := make([]interface{}, 0)
+	result := make([]interface{}, 0, len(wrapperRequest.Args))
 
 	for _, value := range wrapperRequest.Args {
 		decoder := hessian.NewDecoder(value)
diff --git a/internal/codec/twoway_codec_impl/twoway_codec_impl.go b/internal/codec/twoway_codec_impl/twoway_codec_impl.go
index 663f669..9f93632 100644
--- a/internal/codec/twoway_codec_impl/twoway_codec_impl.go
+++ b/internal/codec/twoway_codec_impl/twoway_codec_impl.go
@@ -61,9 +61,9 @@ func NewPBWrapperTwoWayCodec(codecName constant.CodecType) (common.TwoWayCodec,
 
 // MarshalRequest marshal interface @v to []byte
 func (h *PBWrapperTwoWayCodec) MarshalRequest(v interface{}) ([]byte, error) {
-	argsBytes := make([][]byte, 0)
-	argsTypes := make([]string, 0)
 	reqList := v.([]interface{})
+	argsBytes := make([][]byte, 0, len(reqList))
+	argsTypes := make([]string, 0, len(reqList))
 	for _, value := range reqList {
 		data, err := h.codec.Marshal(value)
 		if err != nil {
diff --git a/pkg/common/constant/constant.go b/pkg/common/constant/constant.go
index 1ca289b..a0ff7b6 100644
--- a/pkg/common/constant/constant.go
+++ b/pkg/common/constant/constant.go
@@ -23,7 +23,7 @@ const (
 	TRIPLE = "tri"
 
 	// DefaultHttp2ControllerReadBufferSize is default read buffer size of triple client/server
-	DefaultHttp2ControllerReadBufferSize = 1000000
+	DefaultHttp2ControllerReadBufferSize = 4096
 
 	// DefaultTimeout is default timeout seconds of triple client
 	DefaultTimeout = 15
diff --git a/pkg/http2/server.go b/pkg/http2/server.go
index 67ad71e..283c00c 100644
--- a/pkg/http2/server.go
+++ b/pkg/http2/server.go
@@ -195,7 +195,7 @@ func skipHeader(frameData []byte) ([]byte, uint32) {
 func readSplitData(ctx context.Context, rBody io.ReadCloser) chan *bytes.Buffer {
 	cbm := make(chan *bytes.Buffer)
 	go func() {
-		buf := make([]byte, 4098) // todo configurable
+		buf := make([]byte, 4096) // todo configurable
 		for {
 			splitBuffer := bytes.NewBuffer(make([]byte, 0))