Hello and welcome! 🎉
The goal for this workshop is to give you the tools you need to diagnose performance problems in your Go applications and fix them.
Through the day we'll work from the small -- learning how to write benchmarks, then profiling a small piece of code. Then step out and talk about the execution tracer, the garbage collector and tracing running applications. The remainder of the day will be a chance for you to ask questions, experiment with your own code.
The are several software downloads you will need today.
Download this repo on bit.ly/goptw2018.
The workshop material targets Go 1.10.
Note: If you've already upgraded to Go 1.11 that's ok. There are always some small changes to optimisation choices between minor Go releases but there's nothing substantially different between Go 1.10 and Go 1.11.
The section on pprof requires the dot program which ships with the graphviz suite of tools.
- Linux:
[sudo] apt-get install graphviz - OSX:
- MacPorts:
sudo port install graphviz - Homebrew:
brew install graphviz
- MacPorts:
- Windows (untested)
The section on the execution tracer requires Google Chrome. It will not work with Safari, Edge, Firefox, or IE 4.01. Sorry.
The final section of the day will be an open session where you can experiment with the tools you've learnt.
This isn't a lecture, it's a conversation. We'll have lots of breaks to ask questions.
If you don't understand something, or think what you're hearing not correct, please ask.