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    SubjectRe: Performance overhead of get_cycles_sync
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    Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org> writes:

    > the TSC clocksource (and hence the vsyscall code) is turned off on
    > systems that fail the TOD/CLOCK portion of this test:

    Which is not on core2 which was the question about. And if it was
    turned off it wouldn't use get_cycles_sync() at all.

    -Andi


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