seniorRust
How does Rust memory model interact with CPU cache coherence (MESI protocol)?
Updated May 24, 2026
Short answer
Rust atomics map to hardware memory ordering that interacts with MESI cache coherence.
Deep explanation
MESI ensures cache consistency across CPU cores. Rust memory ordering (Relaxed, Acquire, Release, SeqCst) defines visibility guarantees mapped to CPU fences.
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