package main
import (
"log"
"net/http"
_ "net/http/pprof"
)
func main() {
go func() {
for {
log.Println("https://github.com/rushuinet/webdemo")
}
}()
http.ListenAndServe("0.0.0.0:8888", nil)
}
在浏览器使用 http://localhost:8888/debug/pprof/ 即可访问
1.如果安装过graphviz直接提交过这步骤，否则可以到 http://www.graphviz.org/download/ 下载，并把bin加入到环境变量 windows 下载地址：https://graphviz.gitlab.io/_pages/Download/Download_windows.html
2.在命令行输入
go tool pprof http://localhost:8888/debug/pprof/profile?seconds=30
此后的30秒进入收集profile信息的状态。30秒后进入pprof的交互模式，然后输入
web
然后浏览器自动弹开到网页展示svg图
3.查看已经保存的profile文件
go tool pprof profile C:\Users\user\pprof\pprof.samples.cpu.004.pb.gz
然后也是进入pprof的交互模式，然后输入web
4.还可以查看heap和goroutine
go tool pprof http://localhost:8888/debug/pprof/heap
go tool pprof http://127.0.0.1:8888/debug/pprof/goroutine
5.开启本地图型界面
go tool pprof -http=:8889 http://localhost:8888/debug/pprof/profile
会自动打开http://localhost:8889/ui/