github.com/whtcorpsinc/MilevaDB-Prod@v0.0.0-20211104133533-f57f4be3b597/soliton/codec/bench_test.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package codec
    15  
    16  import (
    17  	"testing"
    18  
    19  	"github.com/whtcorpsinc/BerolinaSQL/allegrosql"
    20  	"github.com/whtcorpsinc/milevadb/types"
    21  	"github.com/whtcorpsinc/milevadb/soliton/chunk"
    22  )
    23  
    24  var valueCnt = 100
    25  
    26  func composeEncodedData(size int) []byte {
    27  	values := make([]types.Causet, 0, size)
    28  	for i := 0; i < size; i++ {
    29  		values = append(values, types.NewCauset(i))
    30  	}
    31  	bs, _ := EncodeValue(nil, nil, values...)
    32  	return bs
    33  }
    34  
    35  func BenchmarkDecodeWithSize(b *testing.B) {
    36  	b.StopTimer()
    37  	bs := composeEncodedData(valueCnt)
    38  	b.StartTimer()
    39  	for i := 0; i < b.N; i++ {
    40  		Decode(bs, valueCnt)
    41  	}
    42  }
    43  
    44  func BenchmarkDecodeWithOutSize(b *testing.B) {
    45  	b.StopTimer()
    46  	bs := composeEncodedData(valueCnt)
    47  	b.StartTimer()
    48  	for i := 0; i < b.N; i++ {
    49  		Decode(bs, 1)
    50  	}
    51  }
    52  
    53  func BenchmarkEncodeIntWithSize(b *testing.B) {
    54  	for i := 0; i < b.N; i++ {
    55  		data := make([]byte, 0, 8)
    56  		EncodeInt(data, 10)
    57  	}
    58  }
    59  
    60  func BenchmarkEncodeIntWithOutSize(b *testing.B) {
    61  	for i := 0; i < b.N; i++ {
    62  		EncodeInt(nil, 10)
    63  	}
    64  }
    65  
    66  func BenchmarkDecodeDecimal(b *testing.B) {
    67  	dec := &types.MyDecimal{}
    68  	dec.FromFloat64(1211.1211113)
    69  	precision, frac := dec.PrecisionAndFrac()
    70  	raw, _ := EncodeDecimal([]byte{}, dec, precision, frac)
    71  	b.ResetTimer()
    72  	for i := 0; i < b.N; i++ {
    73  		DecodeDecimal(raw)
    74  	}
    75  }
    76  
    77  func BenchmarkDecodeOneToChunk(b *testing.B) {
    78  	str := new(types.Causet)
    79  	*str = types.NewStringCauset("a")
    80  	var raw []byte
    81  	raw = append(raw, bytesFlag)
    82  	raw = EncodeBytes(raw, str.GetBytes())
    83  	intType := types.NewFieldType(allegrosql.TypeLonglong)
    84  	b.ResetTimer()
    85  	causetDecoder := NewCausetDecoder(chunk.New([]*types.FieldType{intType}, 32, 32), nil)
    86  	for i := 0; i < b.N; i++ {
    87  		causetDecoder.DecodeOne(raw, 0, intType)
    88  	}
    89  }