Cache Eviction Policies

Cache eviction policies determine how a computer decides which stored data to remove when the cache is full and new data needs to be added. Think of it like a bookshelf with limited space: when you add new books, you might decide to remove the oldest or least-read ones. Common policies include Least Recently Used (LRU), which removes the data not accessed for the longest time, and First-In-First-Out (FIFO), which removes the oldest data. These strategies optimize cache performance by keeping the most relevant or frequently accessed information readily available.