go pprof
常用方法：
https://www.jianshu.com/p/4e4ff6be6af9
https://www.jianshu.com/p/0e8ec67b6248?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation
安装图形化工具：
brew install graphviz
常用方法：
https://www.jianshu.com/p/4e4ff6be6af9
https://www.jianshu.com/p/0e8ec67b6248?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation
安装图形化工具：
brew install graphviz