Cache prefetching
= Cache prefetching
Fetching a <cache line> before a demand access requires it, to overlap transfer <latency> with useful work. A <software prefetch> is one way to request this; unnecessary requests can cause <cache pollution>.
= Cache prefetching
Fetching a <cache line> before a demand access requires it, to overlap transfer <latency> with useful work. A <software prefetch> is one way to request this; unnecessary requests can cause <cache pollution>.