when rust ≠ performance. a lesson in devex.
Summary
An in-depth look at profiling and optimizing a Rust-based data versioning tool (Oxen), focusing on why commit performance suffered due to lock contention and repeated data fetches. The article documents the profiling process, the root causes, and a final 20x improvement via a leaner data flow and better separation of concerns, highlighting how end-to-end design affects real-world performance.