What is a memory cache-replacement-policy?

What is a memory cache-replacement-policy?

A memory cache-replacement policy refers to the strategy used to determine which data should be evicted from the cache when it becomes full and a new data item needs to be stored. It helps in deciding which cache block should be replaced with the new data item. Different cache replacement policies include least recently used (LRU), first in first out (FIFO), random, and least frequently used (LFU). These policies aim to optimize cache performance by minimizing cache misses and maximizing the utilization of cache space.