Tag: Rust
Posts tagged "Rust".
2026 2 writings
The data race that passed every test
A lock-free SPSC ring buffer returned the correct sum on every run while containing a data race. Then a benchmark with a 2x noise floor almost convinced me the race was worth keeping. The fix was measurement, not luck.
The part the algorithm doesn't see
An O(1) lock-free scheduler lost 4–5× throughput to false sharing: two threads fighting over one 64-byte CPU cache line. The fix was memory layout, not the algorithm.