Eviction Policies: In caching systems, eviction policies determine which data to remove from the cache when it’s full to make room for new data. Common policies include Least Recently Used (LRU), First-In, First-Out (FIFO), and Least Frequently Used (LFU).
Analogy: Imagine a library with limited shelf space. Eviction policies are like rules determining which books to remove to accommodate new arrivals, e.g., removing the least borrowed ones (LRU).
Why It Matters: It is important for optimizing cache performance by ensuring that the most relevant and frequently accessed data remains available.