METHOD AND APPARATUS FOR ENSURING FAIRNESS AND FORWARD PROGRESS WHEN EXECUTING MULTIPLE THREADS OF EXECUTION

A system and method for determine which threads to execute at a given time in a multi-threaded computer system. A thread prioritizer determines execution fairness between pairs of potentially executing threads. A switch enabler determines forward progress of each executing thread. The resulting indicators from the thread prioritizer and switch enabler may aid in the determination of whether or not to switch a particular potentially executing thread into execution resources.