558ba06368
Add size parameter for Decode to reduce slice growth BenchmarkDecodeWithSize-8 300000 6153 ns/op BenchmarkDecodeWithOutSize-8 200000 11934 ns/op
50 lines
1.1 KiB
Go
50 lines
1.1 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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// 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/util/types"
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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, 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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Decode(bs, valueCnt)
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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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Decode(bs, 1)
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}
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}
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