The Life-Changing Magic of Tidying Ruby Object Allocations

Your app is slow. It does not spark joy. This post will use memory allocation profiling tools to discover performance hotspots, even when they're coming from inside a library. We will use this technique with a real-world application to identify a piece of optimizable code in Active Record that ultimately leads to a patch with a substantial impact on page speed.In addition to the talk, I've gone back and written a full technical recap of each section to revisit it any time you want without going through the video.I make heavy use of theatrics here, including a Japanese voiceover artist, animoji, and some edited clips of Marie Kondo's Netflix TV show. This recording was done at EuRuKo on a boat. If you've got the time, here's the talk:.