What are the differences between LRU cache and FIFO cache?

What are the differences between LRU cache and FIFO cache?

LRU (Least Recently Used) cache evicts the least recently accessed items, while FIFO (First In First Out) cache evicts the oldest items.

Which one is more efficient for a web application?

LRU is generally more efficient for web applications as it keeps frequently accessed data, reducing cache misses.

Can you give me an example of when to use FIFO?

FIFO can be useful in scenarios where the order of data processing is important, like in streaming applications.

What are the trade-offs of using LRU over FIFO?

LRU can be more complex and require more memory to track usage, while FIFO is simpler but may lead to higher cache misses.