Let's take a look at another contributed module for caching. This module will allow us to configure caching for our authenticated users. It is frequently referred to as the Authcache module and the project page is here: http://drupal.org/project/authcache. The module will cache for both anonymous and authenticated users, and it will increase your page load and Drupal site performance because the page loads will be optimized to about 1-2 milliseconds (according to the module project description). To use this module for anonymous page caching is relatively straightforward. Setting it up for authenticated users will take more detailed and complex crafting.
Authcache will save static HTML versions of Drupal pages and you can configure it to work for specific authenticated user roles in Drupal. The module depends on JavaScript and AJAX to function, and if an anonymous user has JavaScript disabled, they will not see cached versions of the pages. The...