Re: Performance overhead of get_cycles_sync

[Andi Kleen]

Ingo Molnar <mingo-X9Un+BFzKDI@xxxxxxxxxxxxxxxx> 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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