StaticWeb.io

<p>SnapCache accelerates WordPress by providing a fast, reliable persistent object cache backed by Memcached.<br />
It dramatically reduces database load, speeds up page generation, and improves scalability under heavy traffic.</p>
<p>SnapCache is designed to be safe and fast.<br />
See the Benchmarks section for performance results.</p>
<h4>Features</h4>
<ul>
<li>Persistent object cache using Memcached</li>
<li>Automatic prefetching of frequently accessed keys</li>
<li>WP-CLI commands for inspecting and managing the cache</li>
<li>Continues to operate even if Memcached is unreachable</li>
</ul>
<h4>Benchmarks</h4>
<p>Requests per second in a default WordPress installation. Comparison of object cache functionality only.</p>
<ul>
<li><strong>SnapCache v1.0.0 with Memcached – 387.0 req/sec</strong></li>
<li>Redis Cache v2.7.0 – 367.1 req/sec</li>
<li>LiteSpeed v7.6.2 with Redis – 218.6 req/sec</li>
<li>LiteSpeed v7.6.2 with Memcached – 218.0 req/sec</li>
</ul>
<h3>Requirements</h3>
<ul>
<li>WordPress 6.4 or later</li>
<li>PHP 8.1+ with the Memcached extension installed</li>
<li>At least one accessible Memcached server</li>
</ul>


SnapCache

A high-performance persistent object cache powered by Memcached.

Automattic

Mark Jaquith

Mohammad Jangda

Andy Skelton

Yoav Farhi

vnsavage

orensol

<p>Batcache uses Memcached to store and serve rendered pages. It can also optionally cache redirects. It’s not as fast as Donncha’s WP-Super-Cache but it can be used where file-based caching is not practical or not desired. For instance, any site that is run on more than one server should use Batcache because it allows all servers to use the same storage.</p>
<p>Development testing showed a 40x reduction in page generation times: pages generated in 200ms were served from the cache in 5ms. Traffic simulations with Siege demonstrate that WordPress can handle up to twenty times more traffic with Batcache installed.</p>
<p>Batcache is aimed at preventing a flood of traffic from breaking your site. It does this by serving old pages to new users. This reduces the demand on the web server CPU and the database. It also means some people may see a page that is a few minutes old. However this only applies to people who have not interacted with your web site before. Once they have logged in or left a comment they will always get fresh pages.</p>
<p>Possible future features:</p>
<ul>
<li>Comments, edits, and new posts will trigger cache regeneration</li>
<li>Online installation assistance</li>
<li>Configuration page</li>
<li>Stats</li>
</ul>


Batcache

Batcache uses Memcached to store and serve rendered pages.

SnapCache vs Batcache