Artberri

<p>WP XHProf Profiler plugin is an easy way to profile your plugins and themes when you are coding or debugging. To get it done it uses XHProf, a PHP profiler made by the Facebook Dev Team (you must install it before activating the plugin).</p>
<h4>Usage</h4>
<p>By default the profiling is disabled, activate <code>WP_DEBUG</code> on your <code>wp-config.php</code> to enable it. After doing it, all your wordpress pages will have a link at bottom with the profiling data.</p>
<h4>¿What is XHProf?</h4>
<p>From <a href="" title="From PHP documentation" rel="nofollow ugc">http://www.php.net/manual/en/intro.xhprof.php</a></p>
<p>XHProf is a light-weight hierarchical and instrumentation based profiler. During the data collection phase, it keeps track of call counts and inclusive metrics for arcs in the dynamic callgraph of a program. It computes exclusive metrics in the reporting/post processing phase, such as wall (elapsed) time, CPU time and memory usage. A functions profile can be broken down by callers or callees. XHProf handles recursive functions by detecting cycles in the callgraph at data collection time itself and avoiding the cycles by giving unique depth qualified names for the recursive invocations.</p>
<p>XHProf includes a simple HTML based user interface (written in PHP). The browser based UI for viewing profiler results makes it easy to view results or to share results with peers. A callgraph image view is also supported.</p>
<p>XHProf reports can often be helpful in understanding the structure of the code being executed. The hierarchical nature of the reports can be used to determine, for example, what chain of calls led to a particular function getting called.</p>
<p>XHProf supports ability to compare two runs (a.k.a. “diff” reports) or aggregate data from multiple runs. Diff and aggregate reports, much like single run reports, offer “flat” as well as “hierarchical” views of the profile.</p>
<p>Additional documentation can be found via the xhprof website » [http://pecl.php.net/package/xhprof]</p>
<h4>Support</h4>
<p>Comments, questions, feature requests and bug reports are welcome: <a href="http://www.berriart.com/en/xhprof-profiler/" title="XHProf Profiler" rel="nofollow ugc">http://www.berriart.com/en/xhprof-profiler/</a></p>


WP XHProf Profiler

Adds PHP profiling support to your Wordpress using Facebook's XHProf Profiler.

Viktor Szépe

<h4>Only for development!</h4>
<h4>Now with OPcache memory consumption support</h4>
<p>This plugin dumps the colorized filenames and memory consumptions or file sizes after the normal WordPress HTML output, after the closing html tag. This generates invalid HTML but gives you an overview of loaded plugins and the current theme.</p>
<p><em>What’s running</em> lists all files parsed and executed by the PHP engine. It can be used for plugin or theme refactoring.</p>
<h4>Now you can highlight your own plugin and theme</h4>
<p>Provide a part of its path in wp-config.php:</p>
<pre><code>define( 'WHATS_RUNNING_HIGHLIGHT', 'wp-content/plugins/my-plugin' ); </code></pre>
<h4>Color codes</h4>
<ul>
<li>your code is highlighted with YELLOW background</li>
<li>plugin files are in BLUE</li>
<li>themes files are in ORANGE</li>
<li>files in the wp-includes directory are in GREEN</li>
<li>files in the wp-admin directory are in GREY</li>
<li>all other files are in RED</li>
<li>VIOLET bar after the filename represents the file size ( 0.5 kB/px )</li>
<li>DARK MAGENTA bar after the filename represents the OPcache memory consumption ( 1 kB/px )</li>
</ul>
<h4>Links</h4>
<p>You can watch <a href="https://core.trac.wordpress.org/ticket/28364" rel="nofollow ugc">WP core bug #28364</a> to get more information about <a href="https://github.com/szepeviktor/WPHW/blob/master/wp-entry-points.md" rel="nofollow ugc">WordPress entry points</a>.</p>
<p>You can find some documentaion here what makes a WordPress plugin efficient: https://github.com/szepeviktor/WPHW</p>
<p>Development of this plugin goes on on <a href="https://github.com/szepeviktor/whats-running" rel="nofollow ugc">GitHub</a>.</p>


What's running

Lists WordPress require() calls mainly for plugin code refactoring.

WP XHProf Profiler vs What's running