This module allows you to profile your Drupal application using the XHProf profiler, Tideways and uprofiler (PHP 5 only) Use community documentation to install/enable required PHP extension XHProf is a hierarchical profiler for PHP. It reports function-level call counts and inclusive and exclusive metrics such as wall (elapsed) time, CPU time and memory usage. A function's profile can be broken down by callers or callees. The raw data collection component is implemented in C as a PHP Zend extension called xhprof. XHProf has a simple HTML based user interface (written in PHP).