Caching to improve performance
Let us imagine a situation in which a library has a certain book that almost all members are eager to read. Each time a reader requested it, the librarian would fetch it from the storage room, a long walk away. One day, the librarian decided to keep the book at the front desk instead. Now, when readers asked for it, they handed it over instantly, saving time and effort. A cache works similarly by storing frequently accessed data in a fast, easily accessible location, improving system performance and reducing the need for repeated, time-consuming operations. To better understand cache, let’s answer the question: What is cache?
What is caching?
Caching is the process of storing copies of data in a temporary storage location, often referred to as a cache, to allow faster access. Instead of repeatedly fetching data from a database or an external API, a cache provides quick access to frequently requested information. Figure 13.3 illustrates the...
