What are the differences between LRU cache and other caching strategies?

What are the differences between LRU cache and other caching strategies?

LRU (Least Recently Used) cache evicts the least recently accessed items, while other strategies like FIFO (First In First Out) and LFU (Least Frequently Used) have different eviction policies. Would you like to know more about a specific strategy?

Can you explain how LRU cache works in detail?

Sure! An LRU cache maintains a list of items in the order they were accessed. When the cache reaches its limit, it removes the least recently used item to make space for new data. This ensures that frequently accessed items remain available.

What are the advantages of using an LRU cache?

The main advantages of LRU cache include improved performance for frequently accessed data, efficient memory usage, and simplicity in implementation. It adapts well to access patterns.

Are there any downsides to using LRU cache?

Yes, LRU caches can have overhead due to maintaining the order of items, and they may not perform well if access patterns are unpredictable. Additionally, they can consume more memory compared to simpler caching strategies.