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What is cache & types of caching ?
Caching is a mechanism to improve the performance of any type of application.
A cache is a software or hardware component aimed at storing data so that future requests for the same data can be served faster.
TYPES OF CACHING | DESCRIPTION |
|---|---|
In-Memory Caching | Cached data is stored directly in RAM. The most common implementation of this type of caching is based on key-value databases. |
Database Caching | Each database usually comes with some level of caching. Specifically, an internal cache is generally used to avoid querying a database excessively. Although each database can implement this differently, the most popular approach is based on using a hash table storing key-value pairs. |
Web Caching | Web Client Caching : it is also called Web Browser Caching. It works in a very intuitive way. The first time a browser loads a web page, it stores the page resources, such as text, images, stylesheets, scripts, and media files. Web Server Caching : storing resources server-side for reuse. Such an approach is helpful when dealing with dynamically generated content, which takes time to be created : avoids servers from getting overloaded, reducing the work to be done, and improves the page delivery speed. |
CDN caching | It is aimed at caching content, such as web pages, stylesheets, scripts, and media files, in proxy servers. It can be seen as a system of gateways between the user and the origin server, storing its resources. When the user requires a resource, a proxy server intercepts it and checks to see if it has a copy. |
What is a caching strategy ?
It’s to determine the relationship between data source and your caching system, and how your data can be accessed.
Image AddedWhat are the 3 types of cache memory ?
Why cache is faster than Database ?
https://alonge.medium.com/why-cache-storage-is-80times-faster-than-disk-storage-hdds-b1e9fef5fd8d :
What is the purpose of caching ?
A cache's primary purpose is to increase data retrieval performance by reducing the need to access the underlying slower storage layer. Trading off capacity for speed, a cache typically stores a subset of data transiently, in contrast to databases whose data is usually complete and durable.