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Underrust: What is the cost of Mutex, RwLock and AtomicPtr?

Graham King · published 5 May 2025

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https://doc.rust-lang.org/std/marker/trait.Sync.html

doc.rust-lang.org

https://www.man7.org/linux/man-pages/man7/futex.7.html

man7.org

Underrust: Does it matter what type (u8, u32, ...) I use? Read at the source ↗

https://www.agner.org/optimize/instruction_tables.pdf

agner.org

https://github.com/rust-lang/rust/blob/88b3b520e852e01970c3f519339ba64ed3e7db6d/library/std/src/sys/sync/rwlock/futex.rs

github.com

https://doc.rust-lang.org/std/sync/atomic/

doc.rust-lang.org

https://gist.github.com/grahamking/415b487f754de048ecd34a6c841012df

gist.github.com

Rust atomics on x86: How and why Read at the source ↗