memcached

Memcached is a server caching system which can be used on any VPS or dedicated server. It appears to be an open source and can be installed for free. A caching system can noticeably improve the performance of the website.

It is worth mentioning that Memcached and Memcache should not be confused – Memcache is an extension which is actually used for the Memcached.

Memcached as a separate tool cannot improve the site performance, it should be used together with the Memcache to function properly.

So how does Memcached work?

It stores the data in the memory and checks for the data when it is needed. It is important that Memcached has an ability to store SQL queries as well, so the next time the query is run the result can be returned from the memory.

The main difference between the Memcached and other caching systems is that it caches the data and not parsed scripts, which makes it perfect for MySql optimization. Memcached suits perfectly for large caches that change.

With the above being said Memcached has a lot of advantages versus other cache systems and will certainly help you to improve your site performance.