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63 lines
1.8 KiB
63 lines
1.8 KiB
// 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package expression
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import (
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"math/rand"
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"testing"
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"github.com/pingcap/parser/mysql"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/chunk"
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"github.com/pingcap/tidb/util/mock"
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)
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func genCastIntAsInt() (*builtinCastIntAsIntSig, *chunk.Chunk, *chunk.Column) {
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col := &Column{RetType: types.NewFieldType(mysql.TypeLonglong), Index: 0}
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baseFunc, err := newBaseBuiltinFunc(mock.NewContext(), "", []Expression{col})
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if err != nil {
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panic(err)
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}
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baseCast := newBaseBuiltinCastFunc(baseFunc, false)
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cast := &builtinCastIntAsIntSig{baseCast}
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input := chunk.NewChunkWithCapacity([]*types.FieldType{types.NewFieldType(mysql.TypeLonglong)}, 1024)
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for i := 0; i < 1024; i++ {
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input.AppendInt64(0, rand.Int63n(10000)-5000)
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}
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result := chunk.NewColumn(types.NewFieldType(mysql.TypeLonglong), 1024)
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return cast, input, result
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}
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func BenchmarkCastIntAsIntRow(b *testing.B) {
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cast, input, _ := genCastIntAsInt()
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it := chunk.NewIterator4Chunk(input)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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for row := it.Begin(); row != it.End(); row = it.Next() {
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if _, _, err := cast.evalInt(row); 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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}
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func BenchmarkCastIntAsIntVec(b *testing.B) {
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cast, input, result := genCastIntAsInt()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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if err := cast.vecEvalInt(input, result); 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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