What are some common mistakes when implementing an LRU cache?

What are some common mistakes when implementing an LRU cache?

Some common mistakes include not handling cache eviction properly, using the wrong data structures, and not considering thread safety.

Can you explain why using a linked list is important for LRU caches?

Using a linked list allows for efficient removal and addition of items, maintaining the order of usage which is crucial for LRU.

What data structure should I use for the cache storage?

A combination of a hash map for fast access and a doubly linked list for maintaining the order of usage is ideal.

How can I ensure thread safety in my LRU cache implementation?

You can use locks or concurrent data structures to manage access to the cache, ensuring that multiple threads don't interfere with each other.

Are there any performance considerations I should keep in mind?

Yes, consider the trade-offs between memory usage and access speed, and ensure your eviction policy is efficient.