118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
// Copyright 2016 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package codec
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import (
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"testing"
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"github.com/pingcap/tidb/parser/mysql"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/benchdaily"
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"github.com/pingcap/tidb/util/chunk"
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)
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var valueCnt = 100
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func composeEncodedData(size int) []byte {
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values := make([]types.Datum, 0, size)
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for i := 0; i < size; i++ {
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values = append(values, types.NewDatum(i))
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}
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bs, _ := EncodeValue(nil, nil, values...)
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return bs
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}
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func BenchmarkDecodeWithSize(b *testing.B) {
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b.StopTimer()
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bs := composeEncodedData(valueCnt)
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b.StartTimer()
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for i := 0; i < b.N; i++ {
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_, err := Decode(bs, valueCnt)
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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func BenchmarkDecodeWithOutSize(b *testing.B) {
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b.StopTimer()
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bs := composeEncodedData(valueCnt)
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b.StartTimer()
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for i := 0; i < b.N; i++ {
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_, err := Decode(bs, 1)
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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func BenchmarkEncodeIntWithSize(b *testing.B) {
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for i := 0; i < b.N; i++ {
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data := make([]byte, 0, 8)
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EncodeInt(data, 10)
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}
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}
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func BenchmarkEncodeIntWithOutSize(b *testing.B) {
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for i := 0; i < b.N; i++ {
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EncodeInt(nil, 10)
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}
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}
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func BenchmarkDecodeDecimal(b *testing.B) {
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dec := &types.MyDecimal{}
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err := dec.FromFloat64(1211.1211113)
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if err != nil {
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b.Fatal(err)
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}
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precision, frac := dec.PrecisionAndFrac()
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raw, _ := EncodeDecimal([]byte{}, dec, precision, frac)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, _, _, _, err := DecodeDecimal(raw)
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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func BenchmarkDecodeOneToChunk(b *testing.B) {
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str := new(types.Datum)
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*str = types.NewStringDatum("a")
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var raw []byte
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raw = append(raw, bytesFlag)
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raw = EncodeBytes(raw, str.GetBytes())
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intType := types.NewFieldType(mysql.TypeLonglong)
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b.ResetTimer()
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decoder := NewDecoder(chunk.New([]*types.FieldType{intType}, 32, 32), nil)
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for i := 0; i < b.N; i++ {
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_, err := decoder.DecodeOne(raw, 0, intType)
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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func TestBenchDaily(t *testing.T) {
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benchdaily.Run(
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BenchmarkDecodeWithSize,
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BenchmarkDecodeWithOutSize,
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BenchmarkEncodeIntWithSize,
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BenchmarkEncodeIntWithOutSize,
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BenchmarkDecodeDecimal,
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BenchmarkDecodeOneToChunk,
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)
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}
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