https://anekoique.github.io/tags/cpu/ Recent content in CPU on Anekoique's Blog Hugo -- 0.148.2 en Thu, 16 Apr 2026 10:05:00 +0800 https://anekoique.github.io/posts/mm_consistency/ Thu, 16 Apr 2026 10:05:00 +0800 https://anekoique.github.io/posts/mm_consistency/ Memory consistency models define which reorderings are legal. A walk through SC, TSO (x86), PSO, and relaxed models (ARM / POWER), plus the memory barriers used to enforce ordering when it matters. https://anekoique.github.io/posts/cache_coherence/ Thu, 16 Apr 2026 10:00:00 +0800 https://anekoique.github.io/posts/cache_coherence/ How multi-core CPUs keep a consistent view of memory — the MESI protocol, bus snooping, cache-to-cache transfers, and the store-buffer / invalid-queue optimizations (plus the memory-ordering headaches they introduce).