The image above illustrates how BigPipe can help even slow-to-render pages deliver usable content to the browser very quickly. If you have a block in a sidebar that pulls in some data from an external service, or only one tiny user-specific block (like a "Welcome, Jeff!" widget with a profile picture) that takes a half second or longer to render, Drupal can now serve the majority of a page immediately, then send the slower content when it's ready.

The image above illustrates how BigPipe can help even slow-to-render pages deliver usable content to the browser very quickly. If you have a block in a sidebar that pulls in some data from an external service, or only one tiny user-specific block (like a "Welcome, Jeff!" widget with a profile picture) that takes a half second or longer to render, Drupal can now serve the majority of a page immediately, then send the slower content when it's ready.

Safely remove a limited number of items from the cache_form table. This module provides a drush command drush safe-cache-form-clear that can be run at a high frequency, keeping the table at a reasonable size. It requires that you use the database cache back-end for the cache_form table. Drupal's core cron can have problems clearing out the cache_form table when it grows extremely large. This module works around this by limiting the number of items expired from the cache in a single run, dealing with a single manageable chunk at a time.

cache_warmer is a drush command that hits a set of URIs of a drupal site based on the freshness of the content. The main purpose is to offer a complete setup for running a mostly cached drupal site without having to deal with expiration logic and instead use microcaching. Dealing with the expiration logic is messy and inefficient it requires additional work, be it from the drupal side of things, be it from the external cache side. Microcaching can be used with any type of site. Be it your portfolio or personal blog or a high traffic news site.

How to check your settings for query cache and set them up properly.