Danny van Kooten

Basic profiler for WordPress Plugins. Benchmarks any given plugin by testing response times with and without the plugin activated.
<blockquote>
Plugin Profiler is on GitHub.
Bug reports (and pull requests) are welcomed on the <a href="https://github.com/dannyvankooten/wp-plugin-profiler" rel="nofollow ugc">Plugin Profiler GitHub repository</a>.
Please note that GitHub is not a support forum.
</blockquote>
<h4>Profiling a plugin</h4>
This plugin measures response times of any URL on your website in the following ways.
<ul>
<li>No plugins activated</li>
<li>Only the selected plugin(s) activated</li>
<li>All but the selected plugin(s) activated</li>
<li>All plugins activated</li>
</ul>
It then plots the response times in a chart and calculates the average response time time difference.
While this way of profiling a plugin is very low-tech it can be interesting to measure the impact of a plugin on your site’s response time. 
Please note that this way of benchmarking leaves a lot of factors out – like additional HTTP requests caused by a plugin, etc..
<h4>Installing Plugin Profiler</h4>
Since this plugin needs to filter out which plugins are activated for the profiling requests, it needs to be installed as a must-use plugin so it’s loaded early.
Have a look at the <a href="https://wordpress.org/plugins/plugin-profiler/installation/">installation instructions</a> for details.
More information
<ul>
<li>Developers; follow or contribute to the <a href="https://github.com/dannyvankooten/wp-plugin-profiler" rel="nofollow ugc">Plugin Profiler plugin on GitHub</a></li>
<li>Other <a href="https://dannyvankooten.com/wordpress-plugins/#utm_source=wp-plugin-repo&utm_medium=link&utm_campaign=more-info-link" rel="nofollow ugc">WordPress plugins</a> by <a href="https://dannyvankooten.com#utm_source=wp-plugin-repo&utm_medium=link&utm_campaign=more-info-link" rel="nofollow ugc">Danny van Kooten</a></li>
<li><a href="https://twitter.com/dannyvankooten" rel="nofollow ugc">@DannyvanKooten</a> on Twitter</li>
</ul>

Plugin Profiler

The plugin is currently working, and showing the load time of all plugins, no plugins, all but one plugin you specify, and that one plugin only. Pretty good for showing clients how much their plugins are slowing down their site. I like this plugin better than the p3 profiler.

WARNING: Copying and pasting the profiler.php file from the installation instructions will cause a white screen of death. You need to replace the quotes with normal quotes.

Works with WP 4.9

Basic plugin profiler. Benchmarks response times with and without a given plugin activated.

mywebtonet

CPU performance testing: 
This plugin does various calculations and string manipulations on your PHP webserver 
and your MySQL database server. To further test the MySQL server, a sequence of MySQL 
inserts, selects, updates and deletes are performed in a separate custom database table 
(we do not use your WordPress tables for this).
Network testing: 
The network is tested by fetching directly from Google’s CDN / apis network. Fetching from the Google 
apis network gives you the nearest server, and will give more accurate results. We also fetch a small 1Mb 
file from our servers as well in case the Google apis is down. The network tests are not yet shown in the 
graphs, we are working on this 🙂
Results: 
After the sequence of tests has finished, the results will be displayed for you to evaluate. MySQL results can 
vary depending on the type of connection your webserver has to the MySQL server. If a “local socket” connection 
is used a typical result for the MySQL query test is 0.05-0.25 seconds. Web hosting providers with dedicated MySQL 
servers will show a slower time/queries per second, as a TCP/IP connection to the MySQL server is made instead of 
a local socket connection.
There are many factors that will determine how fast your website will run. This plugin does not test 
for how many hits/requests per second your provider allows to your website, file system performance is not tested 
either. Use it as a performance test to assess how fast a CPU your provider has allocated to your webserver 
and your MySQL database backend.
Share with your friends, let’s start a competition and see who’s got the fastests servers (hint) 🙂

PHP/MySQL CPU performance statistics

Benchmarks PHP and MySQL and does various performance analysis on these. Especially MySQL analysis is good.

In general benchmarks are short, but quite informative.

Works well and does various important tests

I had to measure the performance of my two local machines (a laptop and a desktop). This plugin came in handy to do exactly that. I only wish that there was a way to export the results for future ref!

Handy

With the performance test plugin you can test the CPU and MySQL speed on your webserver and your MySQL server.

Plugin Profiler vs PHP/MySQL CPU performance statistics