Brion Vibber wrote:
MediaWiki includes a limited to-disk page caching option; only non-logged-in hits are stored, and only for pages that aren't redirects, special pages, etc.
I just tried to use this, and it seems the file cache is totally broken in current mediawiki 1.3.0beta4. It looks like the code is not maintained, probably because it is not used by wikipedia.
Basically, the file cache is never used, except when oldid is defined, i.e. when viewing a diff.
Also, the file cache is not useable when you have either the IP shown in the page header (for anonymous users), or when it is a logged in user. Either of this is the case on wikipedia, so it's not useable there.
Might be best to remove the code entirely then...