// Copyright 2019 PingCAP, Inc. // // 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, // See the License for the specific language governing permissions and // limitations under the License. package types import ( "math/rand" "testing" "github.com/pingcap/parser/mysql" ) func BenchmarkDefaultTypeForValue(b *testing.B) { lenNums := 1000000 numsFull := make([]uint64, lenNums) nums64k := make([]uint64, lenNums) nums512 := make([]uint64, lenNums) for i := range numsFull { r := rand.Uint64() numsFull[i] = r nums64k[i] = r % 64000 nums512[i] = r % 512 } b.Run("LenOfUint64_input full range", func(b *testing.B) { b.StartTimer() var ft FieldType for i := 0; i < b.N; i++ { DefaultTypeForValue(numsFull[int(i)%lenNums], &ft, mysql.DefaultCharset, mysql.DefaultCollationName) } }) b.Run("LenOfUint64_input 0 to 64K ", func(b *testing.B) { b.StartTimer() var ft FieldType for i := 0; i < b.N; i++ { DefaultTypeForValue(nums64k[int(i)%lenNums], &ft, mysql.DefaultCharset, mysql.DefaultCollationName) } }) b.Run("LenOfUint64_input 0 to 512 ", func(b *testing.B) { b.StartTimer() var ft FieldType for i := 0; i < b.N; i++ { DefaultTypeForValue(nums512[int(i)%lenNums], &ft, mysql.DefaultCharset, mysql.DefaultCollationName) } }) }