View debugging and performance information on database queries, hooks, conditionals, HTTP requests, redirects and more.
Easily find out which actions and filters are the slowest during a page load.
GetSmily the provider of Emolytics : Emotions and Web Analytics
This plugin will give you the total number of queries to the db per page, as well as the total time it took to render those queries out to the page.
Code for debugging code
Adds PHP profiling support to your WordPress using Facebook's XHProf Profiler.
Analyzes WordPress website performance, helps to locate slow function hooks.
SqlMe - MySQL monitoring and profiling tool for developers and administrators.
Displays a list of each page's SQL queries and the functions calling them that can be searched and sorted by time, type, etc.
Get access to your user data (including custom data) in a '.csv' format for use in MIcrosoft Access or Excel. Monetize your user base whilst
A benchmarking plugin to profile slow hooks.
Lists WordPress require() calls mainly for plugin code refactoring.