Does the observable behavior of the program guaranteed by seq_cst equal that of changing it to RMW operations with acq_rel that write the same value?

· Users Rust Lang · June 22, 2026, 3:20 a.m.
Summary
The blog post discusses the equivalence of observable behavior between programs using `SeqCst` and `AcqRel` memory orders in Rust, particularly focusing on read-modify-write operations and their correctness. It provides coded examples to illustrate this concept, specifically in the context of Epoch-Based Reclamation (EBR).