I'm trying to turn on caching for Mediawiki. A lot of our pages are composites that take a while to generate and don't change unless someone edits a page.
Page caching by the server would do 90% of the job. Object caching and the rest would be great.
Mediawiki speaks of squid/varnish.
Again - page caching would do most of the job.
$wgMainCacheType = CACHE_ACCEL;
but seems to have no effect. If I'm reading right, it depends on PHP caching, which seems to have a learning curve.