github.com/bytedance/gopkg@v0.0.0-20240514070511-01b2cbcf35e1/lang/dirtmake/bytes_test.go (about)

     1  // Copyright 2024 ByteDance 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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package dirtmake
    16  
    17  import (
    18  	"bytes"
    19  	"fmt"
    20  	"testing"
    21  )
    22  
    23  var data []byte
    24  
    25  const block1kb = 1024
    26  
    27  func BenchmarkParallelDirtBytes(b *testing.B) {
    28  	src := make([]byte, block1kb)
    29  	for i := range src {
    30  		src[i] = byte(i)
    31  	}
    32  	b.RunParallel(func(pb *testing.PB) {
    33  		for pb.Next() {
    34  			bs := Bytes(block1kb, block1kb)
    35  			copy(bs, src)
    36  			if !bytes.Equal(bs, src) {
    37  				b.Fatalf("bytes not equal")
    38  			}
    39  		}
    40  	})
    41  }
    42  
    43  func BenchmarkDirtBytes(b *testing.B) {
    44  	for size := block1kb; size < block1kb*20; size += block1kb * 2 {
    45  		b.Run(fmt.Sprintf("size=%dkb", size/block1kb), func(b *testing.B) {
    46  			for i := 0; i < b.N; i++ {
    47  				data = Bytes(size, size)
    48  			}
    49  		})
    50  	}
    51  }
    52  
    53  func BenchmarkOriginBytes(b *testing.B) {
    54  	for size := block1kb; size < block1kb*20; size += block1kb * 2 {
    55  		b.Run(fmt.Sprintf("size=%dkb", size/block1kb), func(b *testing.B) {
    56  			for i := 0; i < b.N; i++ {
    57  				data = make([]byte, size)
    58  			}
    59  		})
    60  	}
    61  }