MaGe Linux Operations

Jun 16, 2023 · Fundamentals

Why Cache Consistency Can Halve Your Program’s Runtime – A Deep Dive

This article explains the multiple layers of CPU cache consistency, the MESI protocol, and how improper cache handling can dramatically slow programs, then demonstrates performance gains through code examples, prefetching, false‑sharing avoidance, and DMA strategies, offering practical guidance for low‑level optimization.