What are LRU algorithms and how do they work?

What are LRU algorithms and how do they work?

LRU stands for Least Recently Used. It's a cache eviction algorithm that removes the least recently accessed items first.

Can you explain how LRU is implemented in programming?

Sure! LRU can be implemented using a combination of a hash map and a doubly linked list to keep track of usage order.

What are the advantages of using LRU over other caching algorithms?

LRU is efficient for scenarios where recently accessed data is likely to be accessed again, reducing cache misses.

Are there any drawbacks to using LRU?

Yes, LRU can be more complex to implement and may require more memory for tracking usage compared to simpler algorithms.