Alex Kladov argues that replacing std mutexes with spinlocks for #[no_std] Rust is an anti-pattern. He explains the mechanics of spinlocks and highlights issues like CPU wastage and priority inversion, advocating against their blind adoption in the Rust ecosystem.
Background
Written by matklad (Alex Kladov), creator of rust-analyzer, this post addresses a recurring pattern in the Rust ecosystem where #[no_std] crates swap std synchronization primitives for spinlocks.
- Source
- Lobsters
- Published
- Oct 9, 2026 at 09:33 PM
- Score
- 6.0 / 10