Messages in this thread |  | | | Subject | Re: Performance overhead of get_cycles_sync | | From | Andi Kleen <> | | Date | Tue, 11 Dec 2007 18:23:45 +0100 | |
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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