1. A design structure embodied in a machine readable storage medium for at least one of designing, manufacturing, and testing a design, the design structure comprising: a computer system comprising: a data processor unit connected to a main memory, said data processor unit including a memory management unit for controlling the conversion of an address of requested data received from a processor into a physical address of said requested data, said main memory including: an apparatus for storing the data being accessed in pages at said physical addresses; a page table accessed by said memory management unit for converting to said page addresses; and a page table walker for proceeding through the entries on said page table.