1. A computer-implemented method for performing deterministic processing, the method comprising acts of: executing a first instruction on a computer system in a first execution; measuring an execution time of the act of executing for the first execution; waiting a period of time to adjust the execution time of the first execution to a constant value; extending the execution time of the first execution to the constant value; and extending the execution time of a plurality of executions of the first instruction after the completion of the first execution to be a same constant value over each of the plurality of the executions.