In Chapter 6, Solution Architecture Design Patterns, you learned how to apply caching at various levels of architecture in the Cache-based architecture section. Caching helps to improve application performance significantly. Although you learned the different design patterns to apply to the cache by adding an external caching engine and technology such as a content distribution network (CDN), it's essential to understand that almost every application component and infrastructure has a cache mechanism. Utilizing the build-caching mechanism at each layer can help to reduce latency and improve the performance of the application.
At the server level, the CPU has its hardware cache, which reduces the latency when accessing data from the main memory. The CPU cache includes the instruction and data cache; the data cache store copies frequently used data. The cache is also applied at the disk level, but it is managed by operating system software (known as the page cache); however...