4.5 trace

1. 使用

步骤如下：

1. 导入包：import runtime/trace
2. 开启分析：trace.Start(file) 停止分析：trace.Stop()

package main

import (
	"fmt"
	"os"
	"runtime/trace"
)

func main() {
	file, err := os.Create("trace.out")
	if err != nil {
		panic(err)
	}
	defer file.Close()

	err = trace.Start(file)
	if err != nil {
		panic(err)
	}

	fmt.Println("Hello World")

	trace.Stop()
}

3. 命令行分析
   • go tool trace trace.out
     • 

2. 参考

Go execution tracer | Gopher Academy Blog Go 执行追踪器（execution tracer） - Go语言中文网 - Golang中文社区 An Introduction to go tool trace How to analyze the performance of your go application in production | Developer’s life Go code refactoring : the 23x performance hunt | by Val Deleplace | Medium