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benchmark_test.go
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package bigqueue
import (
"fmt"
"testing"
)
//在当前目录下,运行以及命令
//go test -bench . -benchtime=3s -run=^$
// 输出如下
// BenchmarkSprintf-8 50000000 109 ns/op
// 看到函数后面的-8了吗?这个表示运行时对应的GOMAXPROCS的值。
// 接着的20000000表示运行for循环的次数也就是调用被测试代码的次数
// 最后的117 ns/op表示每次需要话费117纳秒。(执行一次操作话费的时间)
//如果查看内存分配配置,命令如下 加-benchmem
// go.exe test -bench=. -benchmem -run=^$
func Benchmark_EnqueueOnly(b *testing.B) {
path := Tempfile()
defer clearFiles(path, "testqueue")
var queue = new(FileQueue)
err := queue.Open(path, "testqueue", nil)
if err != nil {
fmt.Println(err)
}
defer queue.Close()
// init enqueue
bb := []byte("hello xiemalin! welcome to our world!")
b.ResetTimer()
t := &testing.T{}
enqueue(queue, bb, b.N, t)
b.StopTimer()
}
func Benchmark_DequeueOnly(b *testing.B) {
path := Tempfile()
defer clearFiles(path, "testqueue")
var queue = new(FileQueue)
err := queue.Open(path, "testqueue", nil)
if err != nil {
fmt.Println(err)
}
defer queue.Close()
bb := []byte("hello xiemalin! welcome to our world!")
t := &testing.T{}
enqueue(queue, bb, b.N, t)
b.ResetTimer()
for i := 0; i < b.N; i++ {
queue.Dequeue()
}
b.StopTimer()
}
func Benchmark_EnqueueDequeue(b *testing.B) {
path := Tempfile()
defer clearFiles(path, "testqueue")
var queue = new(FileQueue)
err := queue.Open(path, "testqueue", nil)
if err != nil {
fmt.Println(err)
}
defer queue.Close()
bb := []byte("hello xiemalin! welcome to our world!")
b.ResetTimer()
for i := 0; i < b.N; i++ {
queue.Enqueue(bb)
queue.Dequeue()
}
b.StopTimer()
}
func Benchmark_ParallelEnqueueDequeue(b *testing.B) {
path := Tempfile()
defer clearFiles(path, "testqueue")
var queue = new(FileQueue)
err := queue.Open(path, "testqueue", nil)
if err != nil {
fmt.Println(err)
}
defer queue.Close()
bb := []byte("hello xiemalin! welcome to our world!")
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
queue.Enqueue(bb)
queue.Dequeue()
}
})
}