What are the differences between LRU and other caching strategies?

What are the differences between LRU and other caching strategies?

LRU, or Least Recently Used, evicts the least recently accessed items first. Other strategies like FIFO (First In, First Out) and LFU (Least Frequently Used) have different criteria for eviction.

Can you explain how LRU works in more detail?

Sure! LRU keeps track of the order in which items are accessed. When the cache reaches its limit, it removes the item that hasn't been used for the longest time.

What are the advantages of using LRU over FIFO?

LRU is generally more efficient for workloads with temporal locality, as it prioritizes keeping frequently accessed items in the cache.

Are there any downsides to using LRU?

Yes, LRU can be more complex to implement and may require additional memory to track access order, which can impact performance.