My bug was in I had a script that ran forever. Whenever someone changed their info the object was reloaded in the script but the reloaded object was always keeping the old values.

A while back I noticed that on certain pages the majority of the time was spent talking to memcached. I then saw that the code was requesting the same keys over and over and over again. The quick fix was simply to add a static array in the Cacher class so that whenever a memcached get is called it first looks at that static array to see if the result is already there thereby saving a network round-trip.

Basically I put a cache in my cache so that I could cache my cache.