1.安裝組件

1. 安裝go-torch
   go get github.com/uber/go-torch
2. 安裝 FlameGraph
   cd $WORK_PATH && git clone https://gitee.com/mirrors/FlameGraph.git
export PATH=$PATH:$WORK_PATH/FlameGraph
3. 安裝graphviz
   yum install graphviz(CentOS, Redhat)

2.代碼修改

package main

import (
    "net/http"
    "net/http/pprof"
)

func main() {
    // 主函數(shù)中添加
    go func() {
        http.HandleFunc("/debug/pprof/block", pprof.Index)
        http.HandleFunc("/debug/pprof/goroutine", pprof.Index)
        http.HandleFunc("/debug/pprof/heap", pprof.Index)
        http.HandleFunc("/debug/pprof/threadcreate", pprof.Index)

        http.ListenAndServe("0.0.0.0:8888", nil)
    }()

    var finishWaiter chan int
    <-finishWaiter
}

3.查看結(jié)果

運行上述程序后，使用如下命令生成ＣＰＵ火焰圖：
go-torch -u http://localhost:8888/debug/pprof/ -p > profile-local.svg