Simultaneous Multithreading
نویسنده
چکیده
A software-extended ar hite ture (SEA) enhan es a hardware ar hite ture by pla ing a high-performan e dynami instru tion-set translator between the appli ation binary and the pro essor, improving pro essor utilization and enabling new fun tionality with no hanges to either the pro essor or the binaries. Our prototype implementation of a software-extended Alpha 21164 an provide new system fun tionality while adding only 1%{30% to the running time of an appli ation. Using this prototype, we have implemented software simultaneous multithreading (SSMT), a new software te hnique for allowing programs to make greater use of the pro essor pipeline. SSMT merges instru tion streams from independent pro esses, in order to in rease instru tion-level parallelism. Experiments with SSMT on the software-extended Alpha 21164 show that pro essor throughput an be improved by up to 30% on real programs, despite the small number of issue slots on this pro essor.
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تاریخ انتشار 2016