Tuanzi Tech Team

Aug 25, 2022 · Fundamentals

Unlocking Java’s Memory Model: CPU Caches, Cache Coherence, and Thread Safety

This article explains the hardware memory hierarchy, CPU multi‑level caches, cache coherence protocols, and how Java’s memory model abstracts these concepts to ensure thread safety, covering local and main memory, synchronization primitives, and the three core properties of atomicity, visibility, and ordering.