1. A method comprising: estimating a performance of a processing system using queueing theory wherein said processing system comprises a network that receives at least one input message stream, transforms said at least one input message stream into at least one output message stream utilizing a plurality of transforms distributed in a first assignment among a plurality of brokers, and outputs said at least one output message stream; performing optimization upon said first assignment of said plurality of transforms using said estimated performance to produce a second assignment; and reassigning said plurality of transforms in accordance with said second assignment.