pprof

安装生成火焰图工具

go get github.com/uber/go-torch

下载graphviz

MacOS

brew install graphviz

Ubuntu

sudo apt-get install graphviz

Centos

yum install graphviz

net/http pprof

import _ "net/http/pprof"

gin pprof

import "github.com/gin-contrib/pprof"
r = gin.Default()
pprof.Register(r)
r.Run(":9001")

go tool

打开pprof可视化页面

go tool pprof -http=:9090 http://localhost:9001/debug/pprof/profile?seconds=60

打开一个交互页面

-inuse_space： 分析程序常驻内存的占用情况

-alloc_objects：分析内存的临时分配情况

go tool pprof -inuse_space http://localhost:9001/debug/pprof/heap
go tool pprof -alloc_space http://localhost:9001/debug/pprof/heap