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Generational Windows Multicore Performance Tests

snydeq writes "Windows XP, Windows Vista, and (soon) Windows 7 all support SMP out of the box, but as InfoWorld's Randall Kennedy notes, 'experience has shown that multiprocessing across discrete CPUs is not the same thing as multiprocessing across integrated cores within the same CPU.' As such, Kennedy set out to stress the multiprocessing capabilities of Windows XP, Windows Vista, and Windows 7 in dual-core and quad-core performance tests. The comprehensive, multiprocess workload tests were undertaken to document scalability, execution efficiency, and raw performance of workloads. 'What I found may surprise you,' Kennedy writes. 'Not only does Microsoft have a firm grasp of multicore tuning, but its scalability story promises to keep getting better with time. In other words, Windows Vista and Windows 7 are poised to reap ever greater performance benefits as Intel and AMD extend the number of cores in future editions of their processors.'"

4 of 228 comments (clear)

  1. Re:118% slower by jc42 · · Score: 5, Funny

    Roughly 118 percent slower than XP on dual-core

    Some great mathematics in this review...

    Yeah, I was sorta wondering about that. Anyone know what the denominator could have been in this calculation? Are they really claiming that it runs the code backwards, undoing the calculations and going from a programs outputs to what its inputs had to be? If so, that could be a major technological advance all by itself. Imagine the useful things you could do with this capability ...

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    Those who do study history are doomed to stand helplessly by while everyone else repeats it.
  2. Re:So what? by Anonymous Coward · · Score: 1, Funny

    The news is that Solitaire is now multi-core aware and will load all your cpu cores if you win.

  3. Re:118% slower by Jerry+Coffin · · Score: 2, Funny

    This was to satisfy Bill G's desire to "factor large prime numbers."

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    The universe is a figment of its own imagination.
  4. Re:The Money Quote by Anonymous Coward · · Score: 1, Funny

    Only on slashdot can lunix trolls get modded up.