GD + Caching :: Feedback Wanted

Like most other plugins GD Booster creates a static file for the page and serves that to non logged in users, it also minifies JS and CSS and will try to serve everything compressed.
It does not cache things in memory and it does not care what server type it is setup on.

If you are using some sort of server cache it can become problematic (sometimes) for logged in users not seeing changes, like running varnish and a WP caching plugin might cause problems depending on settings but it it can vary, some caching plugins can try to clear the varnish cache also, but this again can depend on server settings.

For the easyengine i imagine it is just an image they install that already has these plugins installed.

Stiofan