Tavian Barnes

I’m Tavian, a software developer interested in low-level, high-performance software across many domains. Currently a Staff Engineer at Shopify , I’ve previously worked at the University of Waterloo , Microsoft Research Montreal , a startup called Maluuba , and the University of Calgary .

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Visit tavianator.com → RSS feedOn Hacker News Apr 2023 – Apr 2025

Systems & Performance 4 Software Engineering 3 Tools & Productivity 1 Hardware & Electronics 1 Databases & Data 1

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Bug hunting in Btrfs

2024243 points204 comments Databases & Data details

The other day I was implementing multi-threaded stat() calls in bfs . When I ran some benchmarks, I saw something that made my heart skip a beat: