jboner/akka — comment on commit 43913b0490a88235748f631896217b38f11a2ca6
File: akka-actor/src/main/scala/akka/dispatch/BalancingDispatcher.scala line 41
By rkuhn:

why the trouble? identityHashCode should work fine most of the time, and the path comparison (which is extremely cheap also, in the most probable case) is only used on insanely large boxes with more than 4billion objects on the heap. UUID is waaay heavier.