What is Cache Replacement?
When a new block needs to be brought in while all the cache blocks are occupied, the cache controller must select a block to be replaced with the desired data. Replacement algorithms play an important role in defining the cache-eviction policy, which directly affects the <a href=”https://www.cloudflare.com/learning/cdn/what-is-a-cache-hit-ratio” ,rel=””> cache hit-rate </a> and the application performance.
