yaole
55 lines
838 B
Go
55 lines
838 B
Go
package main
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import (
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"sync"
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"testing"
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)
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type SimpleStruct struct {
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n int
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}
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func BenchmarkStructureFalseSharing(b *testing.B) {
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structA := SimpleStruct{}
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structB := SimpleStruct{}
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wg := sync.WaitGroup{}
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M := 1000000
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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wg.Add(2)
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go func() {
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for j := 0; j < M; j++ {
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structA.n += j
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}
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wg.Done()
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}()
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go func() {
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for j := 0; j < M; j++ {
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structB.n += j
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}
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wg.Done()
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}()
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wg.Wait()
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}
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}
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func BenchmarkCopyAVX2(b *testing.B) {
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a := make([]byte, 128*1024*1024)
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c := make([]byte, 128*1024*1024)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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CopySlice_AVX2(a, c, len(c))
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}
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}
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func BenchmarkCopy(b *testing.B) {
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a := make([]byte, 128*1024*1024)
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c := make([]byte, 128*1024*1024)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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CopySlice(a, c, len(c))
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}
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}
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