memory leaks

I'm having memory leak problems myself, but I'm not 100% certain that
it's a leak yet.

Here's a question for you. Are they actually leaking, or just using a
lot of memory? His log shows you the number of objects of a specific
type. For example

Top 20
  +50: String (29871)
   +1: Hash (1128)
   +1: Time (40)
   -1: Proc (512)
   -5: Array (1048)

This means that the number of strings since the last logging has
increased by +50 and the total number of strings are 29871.