snapshot of https://github.com/grpc/grpc-go.git (master, 2026-09-15; blobs > 131072B omitted)

encoding/proto/proto_benchmark_test.go

@@ -0,0 +1,99 @@
+/*
+ *
+ * Copyright 2014 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package proto
+
+import (
+	"fmt"
+	"testing"
+
+	"google.golang.org/grpc/encoding"
+	"google.golang.org/protobuf/proto"
+
+	pb "google.golang.org/grpc/test/codec_perf"
+)
+
+func setupBenchmarkProtoCodecInputs(payloadBaseSize uint32) []proto.Message {
+	payloadBase := make([]byte, payloadBaseSize)
+	// arbitrary byte slices
+	payloadSuffixes := [][]byte{
+		[]byte("one"),
+		[]byte("two"),
+		[]byte("three"),
+		[]byte("four"),
+		[]byte("five"),
+	}
+	protoStructs := make([]proto.Message, 0)
+
+	for _, p := range payloadSuffixes {
+		ps := &pb.Buffer{}
+		ps.Body = append(payloadBase, p...)
+		protoStructs = append(protoStructs, ps)
+	}
+
+	return protoStructs
+}
+
+// The possible use of certain protobuf APIs like the proto.Buffer API potentially involves caching
+// on our side. This can add checks around memory allocations and possible contention.
+// Example run: go test -v -run=^$ -bench=BenchmarkProtoCodec -benchmem
+func BenchmarkProtoCodec(b *testing.B) {
+	// range of message sizes
+	payloadBaseSizes := make([]uint32, 0)
+	for i := uint32(0); i <= 12; i += 4 {
+		payloadBaseSizes = append(payloadBaseSizes, 1<<i)
+	}
+	// range of SetParallelism
+	parallelisms := make([]int, 0)
+	for i := uint32(0); i <= 16; i += 4 {
+		parallelisms = append(parallelisms, int(1<<i))
+	}
+	for _, s := range payloadBaseSizes {
+		for _, p := range parallelisms {
+			protoStructs := setupBenchmarkProtoCodecInputs(s)
+			name := fmt.Sprintf("MinPayloadSize:%v/SetParallelism(%v)", s, p)
+			b.Run(name, func(b *testing.B) {
+				codec := &codecV2{}
+				b.SetParallelism(p)
+				b.RunParallel(func(pb *testing.PB) {
+					benchmarkProtoCodec(codec, protoStructs, pb, b)
+				})
+			})
+		}
+	}
+}
+
+func benchmarkProtoCodec(codec *codecV2, protoStructs []proto.Message, pb *testing.PB, b *testing.B) {
+	counter := 0
+	for pb.Next() {
+		counter++
+		ps := protoStructs[counter%len(protoStructs)]
+		fastMarshalAndUnmarshal(codec, ps, b)
+	}
+}
+
+func fastMarshalAndUnmarshal(codec encoding.CodecV2, protoStruct proto.Message, b *testing.B) {
+	marshaledBytes, err := codec.Marshal(protoStruct)
+	if err != nil {
+		b.Errorf("codec.Marshal(_) returned an error")
+	}
+	res := pb.Buffer{}
+	if err := codec.Unmarshal(marshaledBytes, &res); err != nil {
+		b.Errorf("codec.Unmarshal(_) returned an error")
+	}
+}