Performance

A module that allows you to serve static resources from cookieless subdomains.

Currently supported:

Cache Manager started as a suggestion for a Book Study homework problem for the chapter on Caching, designed originally to report the names of all tables starting with the name cach_ or prefix_cach

The emergency module allows you to override the normal layout and content of your site in the event of an emergency. It is primarily designed for institutional websites (such as universities), but could be used by any site that needs to broadcast urgent information to visitors.

By declaring an emergency, non-essential block regions can be hidden and information related to the emergency (such as contact numbers) can be shown instead. This gives critical information more visibility, and allows you to quickly disable non-critical, bandwidth-intensive content to better endure increased site traffic. You can also define multiple emergency levels with different sets of overrides. For example, you could have a "closure" level that is used to declare a campus closure due to inclement weather, and a separate "public safety issue" level for life-threatening situations.

This module adds drupal 7 style entity caching to drupal 6. You have to patch drupal core in order to use this module.
Adds database caching to the following modules

An experimental drush command that aggregates xhprof runs for a particular menu callback, optionally outputting a diff report if a patch is provided.

The module allows to build high performance tracker replacement using Views module. It's based on ideas from the Tracker 2 project, but is almost a complete rewrite.