atomic_bench_test.go

package main

import (
	"sync/atomic"
	"testing"
)

func BenchmarkAtomicSerial(b *testing.B) {
	var n int64
	for i := 0; i < b.N; i++ {
		atomic.AddInt64(&n, 1)
	}
}

func BenchmarkAtomicConcurrent(b *testing.B) {
	var n int64
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			atomic.AddInt64(&n, 1)
		}
	})
}