Info : Drupal Performance and Scalability Patches

The following collection of patches are useful performance and scalability tweaks that can be applied to Drupal websites. This collection will continue to grow, and is being maintained as a reference page for our online performance and scalability book. As new versions of Drupal are released, updated version of these patches will be added to this page.

To learn more about how these patches work, where they came from, and if they've been merged upstream, you can click the readme link following each patch's brief description. We welcome all feedback, and suggestions for other patches that should be included in this collection. [..]

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Courtesy : Tag1consulting.com