rclone/vendor/google.golang.org/grpc/codec_benchmark_test.go

115 lines
3.9 KiB
Go

// +build go1.7
/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package grpc
import (
"fmt"
"testing"
"github.com/golang/protobuf/proto"
"google.golang.org/grpc/test/codec_perf"
)
func setupBenchmarkProtoCodecInputs(b *testing.B, 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 := &codec_perf.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([]uint32, 0)
for i := uint32(0); i <= 16; i += 4 {
parallelisms = append(parallelisms, 1<<i)
}
for _, s := range payloadBaseSizes {
for _, p := range parallelisms {
func(parallelism int, payloadBaseSize uint32) {
protoStructs := setupBenchmarkProtoCodecInputs(b, payloadBaseSize)
name := fmt.Sprintf("MinPayloadSize:%v/SetParallelism(%v)", payloadBaseSize, parallelism)
b.Run(name, func(b *testing.B) {
codec := &protoCodec{}
b.SetParallelism(parallelism)
b.RunParallel(func(pb *testing.PB) {
benchmarkProtoCodec(codec, protoStructs, pb, b)
})
})
}(int(p), s)
}
}
}
func benchmarkProtoCodec(codec *protoCodec, 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(protoCodec Codec, protoStruct proto.Message, b *testing.B) {
marshaledBytes, err := protoCodec.Marshal(protoStruct)
if err != nil {
b.Errorf("protoCodec.Marshal(_) returned an error")
}
if err := protoCodec.Unmarshal(marshaledBytes, protoStruct); err != nil {
b.Errorf("protoCodec.Unmarshal(_) returned an error")
}
}