Jeffrey Schutzman

Provides details on your WP-eCommerce and WordPress installation state, issues and performance.
We have provided this plugin in the hope that it will help you identify issues with your WordPress and WP-eCommerce 
configuration.
<h4>Checks for the following unfortunate conditions existing on your site:</h4>
<ul>
<li>Unreachable links to products, checkout, results and user profile pages. Checks HTTP and HTTPS.</li>
<li>Too many options in the WordPress options table</li>
<li>Too many autoload options in the WordPress options table</li>
<li>Too much autoload data in the WordPress options table</li>
<li>Too many transients in the WordPress database</li>
<li>Expired transients in the WordPress database</li>
<li>Orphaned WordPress post meta</li>
<li>Orphaned WordPress taxonomy terms</li>
<li>Memcache not present</li>
<li>APC not present</li>
<li>Object cache not functioning</li>
<li>Slow un-cached query performance</li>
<li>Slow cached query performance</li>
</ul>
<h4>Makes available to the store administrator individual actions that will:</h4>
<ul>
<li>Delete all WordPress Transients from the WordPress database</li>
<li>Delete expired WordPress transients from the WordPress database</li>
<li>Delete orphaned WordPress post meta</li>
<li>Delete orphaned WordPress taxonomy meta</li>
<li>Delete all files that are part of the WordPress cache</li>
<li>Flush the WordPress cache</li>
<li>Test the configuration of memcache object cache</li>
<li>Initiate a memcache (object cache) flush</li>
</ul>

Store Check-Up and Fix-Up for WP-eCommerce

Provides details on your WP-eCommerce and WordPress installation state, issues and performance.

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.

Store Check-Up and Fix-Up for WP-eCommerce vs PHP/MySQL CPU performance statistics