Talking head
RailsConf RailsConf2018

This presentation, by Akira Matsuda, is licensed under a Creative Commons Attribution ShareAlike 3.0

One day I joined a team maintaining a huge, legacy, and slow Rails app. We thought that we have to optimize the application throughput for the user happiness, and so we formed a task force that focuses on the performance. Now, here's the record of the team's battle, including how we inspected and measured the app, how we found the bottlenecks, and how we tackled each real problem, about the following topics: Tuning Ruby processes Finding slow parts inside Rails, and significantly improving them Fixing existing slow libraries, or crafting ultimately performant alternatives

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