@
目录写在前面
go 测试
基础测试
fib.go
package main
func fib(i int) int {
if i == 0 || i == 1{
return 1
}
return fib(i-2) + fib(i-1)
}
test_fib.go
package main
import "testing"
func BenchmarkFib(b *testing.B){
for n:=0; n<b.N; n++{
fib(30)
}
}
使用
go test --bench .go test --bench --cpu=2,4 .go test --bench --benchtime=5s .
内存
generate_test.go
// generate_test.go
package main
import (
"math/rand"
"testing"
"time"
)
func generateWithCap(n int) []int {
rand.Seed(time.Now().UnixNano())
nums := make([]int, 0, n)
for i := 0; i < n; i++ {
nums = append(nums, rand.Int())
}
return nums
}
func generate(n int) []int {
rand.Seed(time.Now().UnixNano())
nums := make([]int, 0)
for i := 0; i < n; i++ {
nums = append(nums, rand.Int())
}
return nums
}
func BenchmarkGenerateWithCap(b *testing.B) {
for n := 0; n < b.N; n++ {
generateWithCap(1000000)
}
}
func BenchmarkGenerate(b *testing.B) {
for n := 0; n < b.N; n++ {
generate(1000000)
}
}
测试
go test -bench='Generate' .go test -bench='Generate' --benchmem .
参数测试
generate_test.go
// generate_test.go
package main
import (
"math/rand"
"testing"
"time"
)
func generate(n int) []int {
rand.Seed(time.Now().UnixNano())
nums := make([]int, 0)
for i := 0; i < n; i++ {
nums = append(nums, rand.Int())
}
return nums
}
func benchmarkGenerate(i int, b *testing.B) {
for n := 0; n < b.N; n++ {
generate(i)
}
}
func BenchmarkGenerate1000(b *testing.B) { benchmarkGenerate(1000, b) }
func BenchmarkGenerate10000(b *testing.B) { benchmarkGenerate(10000, b) }
func BenchmarkGenerate100000(b *testing.B) { benchmarkGenerate(100000, b) }
func BenchmarkGenerate1000000(b *testing.B) { benchmarkGenerate(1000000, b) }
参数测试
go test -bench .
timeRest
func BenchmarkFib(b *testing.B) {
time.Sleep(time.Second * 3) // 模拟耗时准备任务
b.ResetTimer() // 重置定时器
for n := 0; n < b.N; n++ {
fib(30) // run fib(30) b.N times
}
}
go test -bench='Fib$' -benchtime=50x .
sort_test.go 测试开始记时⌛️和测试结束计时⌛️
// sort_test.go
package main
import (
"math/rand"
"testing"
"time"
)
func generateWithCap(n int) []int {
rand.Seed(time.Now().UnixNano())
nums := make([]int, 0, n)
for i := 0; i < n; i++ {
nums = append(nums, rand.Int())
}
return nums
}
func bubbleSort(nums []int) {
for i := 0; i < len(nums); i++ {
for j := 1; j < len(nums)-i; j++ {
if nums[j] < nums[j-1] {
nums[j], nums[j-1] = nums[j-1], nums[j]
}
}
}
}
func BenchmarkBubbleSort(b *testing.B) {
for n := 0; n < b.N; n++ {
b.StopTimer()
nums := generateWithCap(10000)
b.StartTimer()
bubbleSort(nums)
}
}
测试
go test -bench='Sort$' .
参考资料
标签：nums,int,testing,benchmark,test,func,go From： https://www.cnblogs.com/nones/p/17628761.html