61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
// Copyright 2019 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 types
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import (
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"math/rand"
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"testing"
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"github.com/pingcap/tidb/parser/mysql"
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)
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func BenchmarkDefaultTypeForValue(b *testing.B) {
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lenNums := 1000000
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numsFull := make([]uint64, lenNums)
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nums64k := make([]uint64, lenNums)
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nums512 := make([]uint64, lenNums)
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for i := range numsFull {
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r := rand.Uint64()
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numsFull[i] = r
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nums64k[i] = r % 64000
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nums512[i] = r % 512
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}
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b.Run("LenOfUint64_input full range", func(b *testing.B) {
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b.StartTimer()
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var ft FieldType
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for i := 0; i < b.N; i++ {
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DefaultTypeForValue(numsFull[i%lenNums], &ft, mysql.DefaultCharset, mysql.DefaultCollationName)
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}
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})
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b.Run("LenOfUint64_input 0 to 64K ", func(b *testing.B) {
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b.StartTimer()
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var ft FieldType
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for i := 0; i < b.N; i++ {
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DefaultTypeForValue(nums64k[i%lenNums], &ft, mysql.DefaultCharset, mysql.DefaultCollationName)
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}
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})
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b.Run("LenOfUint64_input 0 to 512 ", func(b *testing.B) {
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b.StartTimer()
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var ft FieldType
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for i := 0; i < b.N; i++ {
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DefaultTypeForValue(nums512[i%lenNums], &ft, mysql.DefaultCharset, mysql.DefaultCollationName)
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}
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})
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}
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