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Operating Systems

Multicore Requires OS Rework, Windows Expert Says 631

alphadogg writes "With chip makers continuing to increase the number of cores they include on each new generation of their processors, perhaps it's time to rethink the basic architecture of today's operating systems, suggested Dave Probert, a kernel architect within the Windows core operating systems division at Microsoft. The current approach to harnessing the power of multicore processors is complicated and not entirely successful, he argued. The key may not be in throwing more energy into refining techniques such as parallel programming, but rather rethinking the basic abstractions that make up the operating systems model. Today's computers don't get enough performance out of their multicore chips, Probert said. 'Why should you ever, with all this parallel hardware, ever be waiting for your computer?' he asked. Probert made his presentation at the University of Illinois at Urbana-Champaign's Universal Parallel Computing Research Center."

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