What factors affect the performance of an LFU cache?

What factors affect the performance of an LFU cache?

The performance of an LFU (Least Frequently Used) cache is influenced by factors like access patterns, cache size, and eviction policies.

How does the access pattern impact LFU cache performance?

Access patterns determine how often items are requested. If certain items are accessed frequently, LFU can retain them, improving hit rates.

What is the ideal cache size for an LFU cache?

The ideal cache size depends on the workload and the frequency of access. A larger cache can reduce misses but may increase overhead.

Can LFU cache perform poorly in certain scenarios?

Yes, LFU can perform poorly in scenarios with rapidly changing access patterns, as it may retain outdated items.

Are there any alternatives to LFU cache?

Yes, alternatives include LRU (Least Recently Used) and FIFO (First In, First Out) caches, each with its own strengths.