RailsConf 2022 - O(1), O(n) and O(#$*&!) by Stephen Prater

Reasoning about the performance of your code doesn't need to require a PhD in computer science or specialized tooling - We'll learn how to quickly recognize and diagnose common performance issues like excessive algorithmic complexity and IO waiting using OpenTelemetry compatible tools. Then we'll fix those issues, and ensure that they stay fixed using automated performance testing, even as your application grows.