For heavily-trodden pages, like currently-popular art or journals, it may be helpful to cache the page, on the grounds that people read much more often than they write. (But if it's too popular then we shouldn't cache because we'll spend most of our time invalidating it anyway.)
Caching a whole page for a logged-in user is a massive headache, too, but this might help for guests I guess.
I don't know if memcached is at all suited for this, given that it stores things only in RAM and lots of pages would take up lots of space pretty quick-like.
For heavily-trodden pages, like currently-popular art or journals, it may be helpful to cache the page, on the grounds that people read much more often than they write. (But if it's too popular then we shouldn't cache because we'll spend most of our time invalidating it anyway.)
Caching a whole page for a logged-in user is a massive headache, too, but this might help for guests I guess.
I don't know if memcached is at all suited for this, given that it stores things only in RAM and lots of pages would take up lots of space pretty quick-like.