diff --git a/runtime/internal/rpc/benchmark/proto_test.go b/runtime/internal/rpc/benchmark/proto_test.go
new file mode 100644
index 0000000..81a90f9
--- /dev/null
+++ b/runtime/internal/rpc/benchmark/proto_test.go
@@ -0,0 +1,95 @@
+// Copyright 2016 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// To build the proto file:
+// sudo apt-get install protobuf-compiler
+// GOPATH=$JIRI_ROOT/release/go go get github.com/golang/protobuf/proto
+// GOPATH=$JIRI_ROOT/release/go go get github.com/golang/protobuf/protoc-gen-go
+// GOPATH=$JIRI_ROOT/release/go go install github.com/golang/protobuf/protoc-gen-go
+// PATH=$PATH:$JIRI_ROOT/release/go/bin protoc --go_out=. rpc.proto
+// manually add build tag and copyright notice
+
+// +build protobuf
+
+package benchmark
+
+import (
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+var echoStr = "Echo"
+var langStr = "en-US.UTF-8"
+var uint641 = uint64(1)
+var boolTrue = true
+var boolFalse = false
+var int64100000 = int64(1000000)
+var emptyString string = ""
+var int320 = int32(0)
+
+var protoReq = &RpcRequest{
+	Suffix:           &emptyString,
+	Method:           &echoStr,
+	NumPosArgs:       &uint641,
+	EndStreamArgs:    &boolFalse,
+	Deadline:         &TimeWireDeadline{FromNow: &TimeDuration{Seconds: &int64100000, Nanos: &int64100000}, NoDeadline: &boolFalse},
+	GrantedBlessings: &SecurityWireBlessings{},
+	TraceRequest: &VtraceRequest{
+		SpanId:   []byte{0x2a, 0xa2, 0xfd, 0xce, 0x42, 0xa7, 0xbd, 0x34, 0x88, 0x8, 0x11, 0x2f, 0x71, 0xce, 0x80, 0xa2},
+		TraceId:  []byte{0x2a, 0xa2, 0xfd, 0xce, 0x42, 0xa7, 0xbd, 0x34, 0x88, 0x8, 0x11, 0x2f, 0x71, 0xce, 0x80, 0xa0},
+		Flags:    &int320,
+		LogLevel: &int320,
+	},
+	Language: &langStr,
+}
+
+var protoResp = &RpcResponse{
+	EndStreamResults: &boolTrue,
+	NumPosResults:    &uint641,
+	TraceResponse: &VtraceResponse{
+		TraceFlags: &int320,
+		Trace: &VtraceTraceRecord{
+			Id: []byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
+		},
+	},
+	AckBlessings: &boolFalse,
+}
+
+func BenchmarkProtoEncodeRequest(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		proto.Marshal(protoReq)
+	}
+}
+
+func BenchmarkProtoDecodeRequest(b *testing.B) {
+	bytes, err := proto.Marshal(protoReq)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		response := RpcResponse{}
+		proto.Unmarshal(bytes, &response)
+	}
+}
+
+func BenchmarkProtoEncodeResponse(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		proto.Marshal(protoResp)
+	}
+}
+
+func BenchmarkProtoDecodeResponse(b *testing.B) {
+	bytes, err := proto.Marshal(protoResp)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		response := RpcResponse{}
+		proto.Unmarshal(bytes, &response)
+	}
+}
diff --git a/runtime/internal/rpc/benchmark/rpc.pb.go b/runtime/internal/rpc/benchmark/rpc.pb.go
new file mode 100644
index 0000000..c582a19
--- /dev/null
+++ b/runtime/internal/rpc/benchmark/rpc.pb.go
@@ -0,0 +1,598 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build protobuf
+
+package benchmark
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+const _ = proto.ProtoPackageIsVersion1
+
+type TimeTime struct {
+	Seconds          *int64 `protobuf:"varint,1,req,name=seconds" json:"seconds,omitempty"`
+	Nanos            *int32 `protobuf:"varint,2,req,name=nanos" json:"nanos,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *TimeTime) Reset()                    { *m = TimeTime{} }
+func (m *TimeTime) String() string            { return proto.CompactTextString(m) }
+func (*TimeTime) ProtoMessage()               {}
+func (*TimeTime) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *TimeTime) GetSeconds() int64 {
+	if m != nil && m.Seconds != nil {
+		return *m.Seconds
+	}
+	return 0
+}
+
+func (m *TimeTime) GetNanos() int32 {
+	if m != nil && m.Nanos != nil {
+		return *m.Nanos
+	}
+	return 0
+}
+
+type VtraceAnnotation struct {
+	When             *TimeTime `protobuf:"bytes,1,req,name=when" json:"when,omitempty"`
+	Msg              *string   `protobuf:"bytes,2,req,name=msg" json:"msg,omitempty"`
+	XXX_unrecognized []byte    `json:"-"`
+}
+
+func (m *VtraceAnnotation) Reset()                    { *m = VtraceAnnotation{} }
+func (m *VtraceAnnotation) String() string            { return proto.CompactTextString(m) }
+func (*VtraceAnnotation) ProtoMessage()               {}
+func (*VtraceAnnotation) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *VtraceAnnotation) GetWhen() *TimeTime {
+	if m != nil {
+		return m.When
+	}
+	return nil
+}
+
+func (m *VtraceAnnotation) GetMsg() string {
+	if m != nil && m.Msg != nil {
+		return *m.Msg
+	}
+	return ""
+}
+
+type VtraceSpanRecord struct {
+	Id               []byte              `protobuf:"bytes,1,req,name=id" json:"id,omitempty"`
+	Parent           []byte              `protobuf:"bytes,2,req,name=parent" json:"parent,omitempty"`
+	Name             *string             `protobuf:"bytes,3,req,name=name" json:"name,omitempty"`
+	Start            *TimeTime           `protobuf:"bytes,4,req,name=start" json:"start,omitempty"`
+	End              *TimeTime           `protobuf:"bytes,5,req,name=end" json:"end,omitempty"`
+	Annotations      []*VtraceAnnotation `protobuf:"bytes,6,rep,name=annotations" json:"annotations,omitempty"`
+	XXX_unrecognized []byte              `json:"-"`
+}
+
+func (m *VtraceSpanRecord) Reset()                    { *m = VtraceSpanRecord{} }
+func (m *VtraceSpanRecord) String() string            { return proto.CompactTextString(m) }
+func (*VtraceSpanRecord) ProtoMessage()               {}
+func (*VtraceSpanRecord) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *VtraceSpanRecord) GetId() []byte {
+	if m != nil {
+		return m.Id
+	}
+	return nil
+}
+
+func (m *VtraceSpanRecord) GetParent() []byte {
+	if m != nil {
+		return m.Parent
+	}
+	return nil
+}
+
+func (m *VtraceSpanRecord) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+func (m *VtraceSpanRecord) GetStart() *TimeTime {
+	if m != nil {
+		return m.Start
+	}
+	return nil
+}
+
+func (m *VtraceSpanRecord) GetEnd() *TimeTime {
+	if m != nil {
+		return m.End
+	}
+	return nil
+}
+
+func (m *VtraceSpanRecord) GetAnnotations() []*VtraceAnnotation {
+	if m != nil {
+		return m.Annotations
+	}
+	return nil
+}
+
+type VtraceTraceRecord struct {
+	Id               []byte              `protobuf:"bytes,1,req,name=id" json:"id,omitempty"`
+	SpanRecord       []*VtraceSpanRecord `protobuf:"bytes,2,rep,name=spanRecord" json:"spanRecord,omitempty"`
+	XXX_unrecognized []byte              `json:"-"`
+}
+
+func (m *VtraceTraceRecord) Reset()                    { *m = VtraceTraceRecord{} }
+func (m *VtraceTraceRecord) String() string            { return proto.CompactTextString(m) }
+func (*VtraceTraceRecord) ProtoMessage()               {}
+func (*VtraceTraceRecord) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *VtraceTraceRecord) GetId() []byte {
+	if m != nil {
+		return m.Id
+	}
+	return nil
+}
+
+func (m *VtraceTraceRecord) GetSpanRecord() []*VtraceSpanRecord {
+	if m != nil {
+		return m.SpanRecord
+	}
+	return nil
+}
+
+type VtraceResponse struct {
+	TraceFlags       *int32             `protobuf:"varint,1,req,name=traceFlags" json:"traceFlags,omitempty"`
+	Trace            *VtraceTraceRecord `protobuf:"bytes,2,req,name=trace" json:"trace,omitempty"`
+	XXX_unrecognized []byte             `json:"-"`
+}
+
+func (m *VtraceResponse) Reset()                    { *m = VtraceResponse{} }
+func (m *VtraceResponse) String() string            { return proto.CompactTextString(m) }
+func (*VtraceResponse) ProtoMessage()               {}
+func (*VtraceResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+
+func (m *VtraceResponse) GetTraceFlags() int32 {
+	if m != nil && m.TraceFlags != nil {
+		return *m.TraceFlags
+	}
+	return 0
+}
+
+func (m *VtraceResponse) GetTrace() *VtraceTraceRecord {
+	if m != nil {
+		return m.Trace
+	}
+	return nil
+}
+
+type RpcResponse struct {
+	Error            *string         `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
+	EndStreamResults *bool           `protobuf:"varint,2,req,name=endStreamResults" json:"endStreamResults,omitempty"`
+	NumPosResults    *uint64         `protobuf:"varint,3,req,name=numPosResults" json:"numPosResults,omitempty"`
+	TraceResponse    *VtraceResponse `protobuf:"bytes,4,req,name=traceResponse" json:"traceResponse,omitempty"`
+	AckBlessings     *bool           `protobuf:"varint,5,req,name=ackBlessings" json:"ackBlessings,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *RpcResponse) Reset()                    { *m = RpcResponse{} }
+func (m *RpcResponse) String() string            { return proto.CompactTextString(m) }
+func (*RpcResponse) ProtoMessage()               {}
+func (*RpcResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+
+func (m *RpcResponse) GetError() string {
+	if m != nil && m.Error != nil {
+		return *m.Error
+	}
+	return ""
+}
+
+func (m *RpcResponse) GetEndStreamResults() bool {
+	if m != nil && m.EndStreamResults != nil {
+		return *m.EndStreamResults
+	}
+	return false
+}
+
+func (m *RpcResponse) GetNumPosResults() uint64 {
+	if m != nil && m.NumPosResults != nil {
+		return *m.NumPosResults
+	}
+	return 0
+}
+
+func (m *RpcResponse) GetTraceResponse() *VtraceResponse {
+	if m != nil {
+		return m.TraceResponse
+	}
+	return nil
+}
+
+func (m *RpcResponse) GetAckBlessings() bool {
+	if m != nil && m.AckBlessings != nil {
+		return *m.AckBlessings
+	}
+	return false
+}
+
+type TimeDuration struct {
+	Seconds          *int64 `protobuf:"varint,1,req,name=seconds" json:"seconds,omitempty"`
+	Nanos            *int64 `protobuf:"varint,2,req,name=nanos" json:"nanos,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *TimeDuration) Reset()                    { *m = TimeDuration{} }
+func (m *TimeDuration) String() string            { return proto.CompactTextString(m) }
+func (*TimeDuration) ProtoMessage()               {}
+func (*TimeDuration) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
+
+func (m *TimeDuration) GetSeconds() int64 {
+	if m != nil && m.Seconds != nil {
+		return *m.Seconds
+	}
+	return 0
+}
+
+func (m *TimeDuration) GetNanos() int64 {
+	if m != nil && m.Nanos != nil {
+		return *m.Nanos
+	}
+	return 0
+}
+
+type TimeWireDeadline struct {
+	FromNow          *TimeDuration `protobuf:"bytes,1,req,name=fromNow" json:"fromNow,omitempty"`
+	NoDeadline       *bool         `protobuf:"varint,2,req,name=noDeadline" json:"noDeadline,omitempty"`
+	XXX_unrecognized []byte        `json:"-"`
+}
+
+func (m *TimeWireDeadline) Reset()                    { *m = TimeWireDeadline{} }
+func (m *TimeWireDeadline) String() string            { return proto.CompactTextString(m) }
+func (*TimeWireDeadline) ProtoMessage()               {}
+func (*TimeWireDeadline) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
+
+func (m *TimeWireDeadline) GetFromNow() *TimeDuration {
+	if m != nil {
+		return m.FromNow
+	}
+	return nil
+}
+
+func (m *TimeWireDeadline) GetNoDeadline() bool {
+	if m != nil && m.NoDeadline != nil {
+		return *m.NoDeadline
+	}
+	return false
+}
+
+type Signature struct {
+	Purpose          []byte  `protobuf:"bytes,1,req,name=purpose" json:"purpose,omitempty"`
+	Hash             *string `protobuf:"bytes,2,req,name=hash" json:"hash,omitempty"`
+	R                []byte  `protobuf:"bytes,3,req,name=r" json:"r,omitempty"`
+	S                []byte  `protobuf:"bytes,4,req,name=s" json:"s,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *Signature) Reset()                    { *m = Signature{} }
+func (m *Signature) String() string            { return proto.CompactTextString(m) }
+func (*Signature) ProtoMessage()               {}
+func (*Signature) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
+
+func (m *Signature) GetPurpose() []byte {
+	if m != nil {
+		return m.Purpose
+	}
+	return nil
+}
+
+func (m *Signature) GetHash() string {
+	if m != nil && m.Hash != nil {
+		return *m.Hash
+	}
+	return ""
+}
+
+func (m *Signature) GetR() []byte {
+	if m != nil {
+		return m.R
+	}
+	return nil
+}
+
+func (m *Signature) GetS() []byte {
+	if m != nil {
+		return m.S
+	}
+	return nil
+}
+
+type Caveat struct {
+	Id               []byte `protobuf:"bytes,1,req,name=id" json:"id,omitempty"`
+	ParamVom         []byte `protobuf:"bytes,2,req,name=paramVom" json:"paramVom,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *Caveat) Reset()                    { *m = Caveat{} }
+func (m *Caveat) String() string            { return proto.CompactTextString(m) }
+func (*Caveat) ProtoMessage()               {}
+func (*Caveat) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{9} }
+
+func (m *Caveat) GetId() []byte {
+	if m != nil {
+		return m.Id
+	}
+	return nil
+}
+
+func (m *Caveat) GetParamVom() []byte {
+	if m != nil {
+		return m.ParamVom
+	}
+	return nil
+}
+
+type Certificate struct {
+	Extension        *string    `protobuf:"bytes,1,req,name=extension" json:"extension,omitempty"`
+	PublicKey        []byte     `protobuf:"bytes,2,req,name=publicKey" json:"publicKey,omitempty"`
+	Caveats          []*Caveat  `protobuf:"bytes,3,rep,name=caveats" json:"caveats,omitempty"`
+	Signature        *Signature `protobuf:"bytes,4,req,name=signature" json:"signature,omitempty"`
+	XXX_unrecognized []byte     `json:"-"`
+}
+
+func (m *Certificate) Reset()                    { *m = Certificate{} }
+func (m *Certificate) String() string            { return proto.CompactTextString(m) }
+func (*Certificate) ProtoMessage()               {}
+func (*Certificate) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{10} }
+
+func (m *Certificate) GetExtension() string {
+	if m != nil && m.Extension != nil {
+		return *m.Extension
+	}
+	return ""
+}
+
+func (m *Certificate) GetPublicKey() []byte {
+	if m != nil {
+		return m.PublicKey
+	}
+	return nil
+}
+
+func (m *Certificate) GetCaveats() []*Caveat {
+	if m != nil {
+		return m.Caveats
+	}
+	return nil
+}
+
+func (m *Certificate) GetSignature() *Signature {
+	if m != nil {
+		return m.Signature
+	}
+	return nil
+}
+
+type CertificateChain struct {
+	Certificates     []*Certificate `protobuf:"bytes,1,rep,name=certificates" json:"certificates,omitempty"`
+	XXX_unrecognized []byte         `json:"-"`
+}
+
+func (m *CertificateChain) Reset()                    { *m = CertificateChain{} }
+func (m *CertificateChain) String() string            { return proto.CompactTextString(m) }
+func (*CertificateChain) ProtoMessage()               {}
+func (*CertificateChain) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{11} }
+
+func (m *CertificateChain) GetCertificates() []*Certificate {
+	if m != nil {
+		return m.Certificates
+	}
+	return nil
+}
+
+type SecurityWireBlessings struct {
+	CertificateChains []*CertificateChain `protobuf:"bytes,1,rep,name=certificateChains" json:"certificateChains,omitempty"`
+	XXX_unrecognized  []byte              `json:"-"`
+}
+
+func (m *SecurityWireBlessings) Reset()                    { *m = SecurityWireBlessings{} }
+func (m *SecurityWireBlessings) String() string            { return proto.CompactTextString(m) }
+func (*SecurityWireBlessings) ProtoMessage()               {}
+func (*SecurityWireBlessings) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{12} }
+
+func (m *SecurityWireBlessings) GetCertificateChains() []*CertificateChain {
+	if m != nil {
+		return m.CertificateChains
+	}
+	return nil
+}
+
+type VtraceRequest struct {
+	SpanId           []byte `protobuf:"bytes,1,req,name=spanId" json:"spanId,omitempty"`
+	TraceId          []byte `protobuf:"bytes,2,req,name=traceId" json:"traceId,omitempty"`
+	Flags            *int32 `protobuf:"varint,3,req,name=flags" json:"flags,omitempty"`
+	LogLevel         *int32 `protobuf:"varint,4,req,name=logLevel" json:"logLevel,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *VtraceRequest) Reset()                    { *m = VtraceRequest{} }
+func (m *VtraceRequest) String() string            { return proto.CompactTextString(m) }
+func (*VtraceRequest) ProtoMessage()               {}
+func (*VtraceRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
+
+func (m *VtraceRequest) GetSpanId() []byte {
+	if m != nil {
+		return m.SpanId
+	}
+	return nil
+}
+
+func (m *VtraceRequest) GetTraceId() []byte {
+	if m != nil {
+		return m.TraceId
+	}
+	return nil
+}
+
+func (m *VtraceRequest) GetFlags() int32 {
+	if m != nil && m.Flags != nil {
+		return *m.Flags
+	}
+	return 0
+}
+
+func (m *VtraceRequest) GetLogLevel() int32 {
+	if m != nil && m.LogLevel != nil {
+		return *m.LogLevel
+	}
+	return 0
+}
+
+type RpcRequest struct {
+	Suffix           *string                `protobuf:"bytes,1,req,name=suffix" json:"suffix,omitempty"`
+	Method           *string                `protobuf:"bytes,2,req,name=method" json:"method,omitempty"`
+	NumPosArgs       *uint64                `protobuf:"varint,3,req,name=numPosArgs" json:"numPosArgs,omitempty"`
+	EndStreamArgs    *bool                  `protobuf:"varint,4,req,name=endStreamArgs" json:"endStreamArgs,omitempty"`
+	Deadline         *TimeWireDeadline      `protobuf:"bytes,5,req,name=deadline" json:"deadline,omitempty"`
+	GrantedBlessings *SecurityWireBlessings `protobuf:"bytes,6,req,name=grantedBlessings" json:"grantedBlessings,omitempty"`
+	TraceRequest     *VtraceRequest         `protobuf:"bytes,7,req,name=traceRequest" json:"traceRequest,omitempty"`
+	Language         *string                `protobuf:"bytes,8,req,name=language" json:"language,omitempty"`
+	XXX_unrecognized []byte                 `json:"-"`
+}
+
+func (m *RpcRequest) Reset()                    { *m = RpcRequest{} }
+func (m *RpcRequest) String() string            { return proto.CompactTextString(m) }
+func (*RpcRequest) ProtoMessage()               {}
+func (*RpcRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
+
+func (m *RpcRequest) GetSuffix() string {
+	if m != nil && m.Suffix != nil {
+		return *m.Suffix
+	}
+	return ""
+}
+
+func (m *RpcRequest) GetMethod() string {
+	if m != nil && m.Method != nil {
+		return *m.Method
+	}
+	return ""
+}
+
+func (m *RpcRequest) GetNumPosArgs() uint64 {
+	if m != nil && m.NumPosArgs != nil {
+		return *m.NumPosArgs
+	}
+	return 0
+}
+
+func (m *RpcRequest) GetEndStreamArgs() bool {
+	if m != nil && m.EndStreamArgs != nil {
+		return *m.EndStreamArgs
+	}
+	return false
+}
+
+func (m *RpcRequest) GetDeadline() *TimeWireDeadline {
+	if m != nil {
+		return m.Deadline
+	}
+	return nil
+}
+
+func (m *RpcRequest) GetGrantedBlessings() *SecurityWireBlessings {
+	if m != nil {
+		return m.GrantedBlessings
+	}
+	return nil
+}
+
+func (m *RpcRequest) GetTraceRequest() *VtraceRequest {
+	if m != nil {
+		return m.TraceRequest
+	}
+	return nil
+}
+
+func (m *RpcRequest) GetLanguage() string {
+	if m != nil && m.Language != nil {
+		return *m.Language
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*TimeTime)(nil), "benchmark.timeTime")
+	proto.RegisterType((*VtraceAnnotation)(nil), "benchmark.vtraceAnnotation")
+	proto.RegisterType((*VtraceSpanRecord)(nil), "benchmark.vtraceSpanRecord")
+	proto.RegisterType((*VtraceTraceRecord)(nil), "benchmark.vtraceTraceRecord")
+	proto.RegisterType((*VtraceResponse)(nil), "benchmark.vtraceResponse")
+	proto.RegisterType((*RpcResponse)(nil), "benchmark.rpcResponse")
+	proto.RegisterType((*TimeDuration)(nil), "benchmark.timeDuration")
+	proto.RegisterType((*TimeWireDeadline)(nil), "benchmark.timeWireDeadline")
+	proto.RegisterType((*Signature)(nil), "benchmark.signature")
+	proto.RegisterType((*Caveat)(nil), "benchmark.caveat")
+	proto.RegisterType((*Certificate)(nil), "benchmark.certificate")
+	proto.RegisterType((*CertificateChain)(nil), "benchmark.certificateChain")
+	proto.RegisterType((*SecurityWireBlessings)(nil), "benchmark.securityWireBlessings")
+	proto.RegisterType((*VtraceRequest)(nil), "benchmark.vtraceRequest")
+	proto.RegisterType((*RpcRequest)(nil), "benchmark.rpcRequest")
+}
+
+var fileDescriptor0 = []byte{
+	// 710 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x7c, 0x54, 0x4b, 0x73, 0xd3, 0x30,
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diff --git a/runtime/internal/rpc/benchmark/rpc.proto b/runtime/internal/rpc/benchmark/rpc.proto
new file mode 100644
index 0000000..1f94a55
--- /dev/null
+++ b/runtime/internal/rpc/benchmark/rpc.proto
@@ -0,0 +1,97 @@
+package benchmark;
+
+message timeTime {
+    required int64 seconds = 1;
+    required int32 nanos = 2;
+}
+
+message vtraceAnnotation {
+    required timeTime when = 1;
+    required string msg = 2;
+}
+
+message vtraceSpanRecord {
+    required bytes id = 1;
+    required bytes parent = 2;
+    required string name = 3;
+
+    required timeTime start = 4;
+    required timeTime end = 5;
+
+    repeated vtraceAnnotation annotations = 6;
+}
+
+message vtraceTraceRecord {
+    required bytes id = 1;
+    repeated vtraceSpanRecord spanRecord = 2;
+}
+
+
+message vtraceResponse {
+    required int32 traceFlags = 1;
+    required vtraceTraceRecord trace = 2;
+}
+
+message rpcResponse {
+    optional string error = 1;
+    required bool endStreamResults = 2;
+    required uint64 numPosResults = 3;
+
+    required vtraceResponse traceResponse = 4;
+    required bool ackBlessings = 5;
+}
+
+message timeDuration {
+    required int64 seconds = 1;
+    required int64 nanos = 2;
+}
+
+message timeWireDeadline {
+    required timeDuration fromNow = 1;
+    required bool noDeadline = 2;
+}
+
+message signature {
+    required bytes purpose = 1;
+    required string hash = 2;
+    required bytes r = 3;
+    required bytes s = 4;
+}
+
+message caveat {
+    required bytes id = 1;
+    required bytes paramVom = 2;
+}
+
+message certificate {
+    required string extension = 1;
+    required bytes publicKey = 2;
+    repeated caveat caveats = 3;
+    required signature signature = 4;
+}
+
+message certificateChain {
+    repeated certificate certificates = 1;
+}
+
+message securityWireBlessings {
+    repeated certificateChain certificateChains = 1;
+}
+
+message vtraceRequest {
+    required bytes spanId = 1;
+    required bytes traceId = 2;
+    required int32 flags = 3;
+    required int32 logLevel = 4;
+}
+
+message rpcRequest {
+    required string suffix = 1;
+    required string method = 2;
+    required uint64 numPosArgs = 3;
+    required bool endStreamArgs = 4;
+    required timeWireDeadline deadline = 5;
+    required securityWireBlessings grantedBlessings = 6;
+    required vtraceRequest traceRequest = 7;
+    required string language = 8;
+}
\ No newline at end of file