2026

Performance Engineering for Everyone

Your app has a slow endpoint. You’ve added a database index, turned on caching, reached for larger instances — and you’re still guessing. This talk teaches you how to read flamegraphs: the visualization that shows exactly where your code spends time, no guesswork required. We’ll demonstrate the technique through a real production story from GitHub, where profiling a single page cut CPU consumption by 13% and rebuilt developer trust in the merge button on the Pull Request page.