Cache research focuses on understanding and optimizing the performance of cache memory systems in computer architectures. This includes studying the organization, management, and algorithms used in caches to improve data access speeds and reduce latency. Researchers may investigate topics such as cache replacement policies, prefetching strategies, cache coherence protocols, and cache hierarchy design. The ultimate goal of cache research is to enhance system performance and efficiency by maximizing the effectiveness of cache memory in storing and retrieving frequently accessed data.