4.5 trace

1. Usage

The steps are as follows:

1. Import the package: import runtime/trace
2. Start analysis: trace.Start(file); stop analysis: 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. Command-line analysis
   • go tool trace trace.out
     • 

2. References

Go execution tracer | Gopher Academy Blog Go Execution Tracer - Go Language Chinese Website - Golang Chinese Community 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