When should I use LRU or LFU caching strategies?

Can you explain when to use LRU or LFU caching strategies?

Sure! LRU (Least Recently Used) is best when you expect recent items to be accessed again, while LFU (Least Frequently Used) is ideal for stable access patterns.

What are the main differences between LRU and LFU?

LRU evicts the least recently accessed items, while LFU removes the least frequently accessed items. LRU focuses on recency, LFU on frequency.

In what scenarios would LFU perform better than LRU?

LFU performs better in scenarios with stable access patterns where certain items are consistently accessed more than others.

Can you give me an example of a real-world application for each?

Certainly! LRU is often used in web browsers for caching pages, while LFU is used in databases for caching frequently queried data.