I apologize for not being specific. Setting timed expiration is not what I meant. Memcache will fill the entire cache and auto select items to be destroyed, bas

I apologize for not being specific. Setting timed expiration is not what I meant. Memcache will fill the entire cache and auto select items to be destroyed, based on current resource availability and order of entry into the cache (FIFO). I want that behaviour. I do not want to set and manage the time things expire.