WP Page Load Stats is a WordPress plugin by mikejolley that allows you to display memory, page load time and query count in the footer of your site on both the front-end and within admin.
This plugin is partly based upon the WP Query Counter by Steven Word (http://www.stevenword.com/plugins/wp-query-counter/) and has been customised for my testing needs.
If you’d like to contribute to the plugin you can find it on GitHub: https://github.com/mikejolley/WP-Page-Load-Stats
Download: http://wordpress.org/extend/plugins/wp-page-load-stats/
