Drupal is a very popular content management framework that is used for all kinds applications. With global web applications and sites relying on Drupal, performance is one question that is often pops up. Most of the performance techniques for scaling out Drupal have to do with optimising the infrastructure.
For read performance additions high performance Java-based solutions like Elastic search and Drupal are used to improve performance. These advantage technologies offer superior performance for querying data over the baseline PHP and MySQL solutions that Drupal is founded on.