webvitalii

<ul>
<li><a href="http://web-profile.net/wordpress/plugins/" title="WordPress Pro plugins" rel="nofollow ugc">WordPress Pro plugins</a></li>
<li><a href="http://web-profile.net/wordpress/plugins/info/" title="Info plugin page" rel="nofollow ugc">Info plugin</a></li>
<li><a href="http://web-profile.net/donate/" title="Support the development" rel="nofollow ugc">Donate</a></li>
<li><a href="https://github.com/webvitalii/info" title="Fork" rel="nofollow ugc">GitHub</a></li>
</ul>
Plugin shows in the admin bar: 
* the number of SQL queries during the WordPress execution 
* the amount of time in seconds to generate the page 
* memory load
Admin bar can be enabled in your profile: <code>"Users => Your Profile => Show Admin Bar"</code>. 
This information also added to the bottom of the source code as HTML comment.
<h4>Useful:</h4>
<ul>
<li><a href="https://wordpress.org/plugins/page-list/" title="list of pages with shortcodes" rel="ugc">“Page-list” – show list of pages with shortcodes</a></li>
<li><a href="https://wordpress.org/plugins/iframe/" title="embed content" rel="ugc">“Iframe” – embed content</a></li>
<li><a href="http://web-profile.net/wordpress/plugins/" title="WordPress Pro plugins" rel="nofollow ugc">WordPress Pro plugins</a></li>
</ul>

info

Plugin shows in the admin bar the number of SQL queries, the amount of time in seconds and memory load.

Dan-Lucian Stefancu

Daniel Telbis

Mircea Tihu

Dream Production

A fast/small debugger integrated into the WordPress Admin Bar, made for identifying the template used for displaying current page.
It was built for fast debugging old projects or other people’s work.
It adds some other potentially useful informations in the dropdown list:
<ul>
<li>the current theme (useful for child themes)</li>
<li>total queries on current page</li>
<li>execution time</li>
</ul>

DP Debug Menu

Very simple and handy plugin. Shows number of queries, too - very good! I like it!

Great!

Quickly shows the template used for current page, number of queries, and execution time for PHP code.

info vs DP Debug Menu