In reply to cbunting99.

I'm assuming you are referring here to complete page caching, not object caching. Disk based object caching is generally considered quite slow and inefficient.

Complete page caching is quite a different although related subject. Even with static page caching running, you should still consider using an object cache, as some users will still need to experience fresh uncached pages, such as logged in users, commenters etc. That point, you need object caching to make any serious dent in page performance.