kohashi

WPPerformanceTester was written as a tool to benchmark WordPress in the <a href="http://reviewsignal.com/blog/2015/07/28/wordpress-hosting-performance-benchmarks-2015/" rel="nofollow ugc">WordPress Hosting Performance Benchmarks (2015)</a> by <a href="http://reviewsignal.com" rel="nofollow ugc">Review Signal</a>. Current benchmarks are on <a href="https://wphostingbenchmarks.com" rel="nofollow ugc">WPHostingBenchmarks.com</a>. It was designed to test the server’s performance by stressing PHP, MySql and running $wpdb queries.
WPPerformanceTester performs the following tests
<ul>
<li>Math – 100,000 math function tests</li>
<li>String Manipulation – 100,000 string manipulation tests</li>
<li>Loops – 1,000,000 loop iterations</li>
<li>Conditionals – 1,000,000 conditional logic checks</li>
<li>MySql (connect, select, version, aes_encrypt) – basic mysql functions and 5,000,000 AES_ENCRYPT() iterations</li>
<li>\$wpdb – 250 insert, select, update and delete operations through \$wpdb</li>
</ul>
It also allows you to see how your server’s performance stacks up against our industry benchmark. Our industry benchmark is the average of all submitted test results.
<h3>Notes on Performance</h3>
Performance can be measured in a lot of ways. WPPerformanceTester was simply one component of a much larger performance benchmark. It tests a single server (or node) that it is running on. So if you’re considering looking at the results from a clustered or distributed setup, it may give you limited insight into how well your whole system performs. WPPerformanceTester is about the raw speed a system has to execute code and perform database operations.
Real website performance isn’t always correlated with raw speed. A seemingly slow website could have a very fast WPPerformanceTester result. There are lots of layers (namely caching) in making a WordPress website fast. A good caching layer will almost always outperform computing power. But when the caching layers are equal, raw speed can make a difference.
WPPerformanceTester is simply one tool to add to your toolkit in measuring performance. You should have a variety of others to test other facets of performance.
<h3>Known Issues</h3>
If the script times out (max_execution_time limit) it will not show any results. You can solve this by increasing the max_execution_time in the php.ini. Some plugins may also cause WPPerformanceTester to run exceptionally slow and make it more likely to hit this limit. One such plugin is VersionPress. You can temporarily disable plugins that might be interfering with it as an alternative way to run it.
<blockquote>
Note:
<ul>
<li>It’s always best to BACKUP EVERYTHING before running ANY new plugin or making changes to your WordPress install.</li>
</ul>
</blockquote>

WPPerformanceTester

WPPerformanceTester benchmarks your server's performance through a variety of PHP, MySql and WordPress tests

Budiony Damyanov

Easy cache takes a real-time snapshot of every Page, Post, Category, Link, etc. These snapshots are then stored (cached) into folder of your choice, so they can be referenced and served to the visitor later, in order to save database processing time that has been slowing your website down.
The Easy cache plugin uses configuration options that you select from the Administration panel. Search for <code>Easy cache</code> in your <code>Settings</code> page. 
Easy cache excludes administrative or WP system login pages from caching (i.e. it works only on public part of your blog). Only NOT logged-in users (which are the most) can benefit from caching mechanism when they visit the public part of your website. Password-protected pages or posts are excluded from caching too.
There is an automatic cache expiration system, which runs through WordPress® behind-the-scene, according to your <code>Cached file expires after</code> setting, also various cache and server load statistics are available for precise tracking of what is going on.
The Easy cache plugin has been tested with various permalink settings, various pagination plugins like <code>WP Pagenavi</code> and <code>WPML WordPress Multilingual Plugin</code>, also with <code>WordPress® Jetpack</code> mobile theme, with variuos custom post types, custom queries, custom pages outside WordPress® installation directory and a number of widely used plugins, however if you experience troubles, post your issue on the plugin’s forum.
Supported languages
<ul>
<li>
English
</li>
<li>
Spanish
</li>
<li>
French
</li>
<li>
Bulgarian
</li>
</ul>

bodi0`s Easy cache

Speed up your blog with Easy Cache, bullet-proof and easy-to-use website caching mechanism for WordPress that just works.

WPPerformanceTester vs bodi0`s Easy cache