- http://blog.mailgun.com/introducing-a-new-cross-platform-debugger-for-go/ https://github.com/mailgun/godebug
- https://github.com/derekparker/delve ( this one is pretty good )
- https://perf.wiki.kernel.org/index.php/Tutorial#Live_analysis_with_perf_top -- shows hotest functions on linux. Installing http://askubuntu.com/a/306683/4608