Drupal has robust Cache API, and various caching layers (both internal and external to Drupal), that work together to decrease application load and boost performance. Drupal's APIs allow developers to declare the cacheability of data. How long can this be stored before it becomes stale? And under what conditions should it be invalidated? Drupal uses that information during the process of building a page to cache as much of the work it does as is possible so that it won't need to do it again. Additionally, Drupal bubbles up the cacheability data from everything required to build a page into HTTP response headers that caching layers external to Drupal can also use to cache the rendered HTML.
When these APIs are combined (and used appropriately), Drupal can be extremely fast for both anonymous and authenticated traffic. But doing so requires understanding the various caching layers, their roles, and their interconnections.
In this tutorial, we'll:
- Review the caching layers and systems behind them
- Learn about components of the Drupal cache system
By the end of this tutorial, you should have a broad understanding of the Drupal caching system, its layers, and a better understanding of where in the stack you should look to optimize for different scenarios.
Over the years we've developed some techniques for practicing that we wanted to share. At Drupalize.Me we take hugging seriously. In this tutorial we'll look at the art, and science, of giving a good hug. The Merriam Webster dictionary defines the word hug as; squeeze (someone) tightly in one's arms, typically to express affection.
Did you know there are all kinds of different hugs that you can give? In this tutorial we'll look at:
- Defining what a hug is
- Some of the many types of hugs in the world today
- Precautions you may want to familiarize yourself with before hugging
- And the importance of proper technique
Lets go ahead and get started shall we?