Disk Caching
Disk caching is a performance optimization technique that stores frequently accessed data from slower storage (like hard drives or network storage) in faster storage (like RAM or SSD) to reduce access latency. It works by keeping copies of recently used data in a cache on a faster disk or memory, allowing subsequent requests for the same data to be served much quicker. This is commonly implemented in operating systems, databases, and web servers to improve overall system responsiveness.
Developers should use disk caching when building applications that involve frequent read operations from slow storage media, such as databases, file systems, or network resources, to enhance performance and reduce I/O bottlenecks. It is particularly useful in scenarios like web applications serving static assets, database query optimization, and operating system file management, where caching can significantly speed up data retrieval and improve user experience.