the idea is to have a single place to cache a data structure, so that duplication is avoided and invalidation is easier. The problem with memcached is that I w

the idea is to have a single place to cache a data structure, so that duplication is avoided and invalidation is easier. The problem with memcached is that I want to access the data sequentially, page by page. I can't seem to find a feasable way to store an ordered list (without really bad insert performance).