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Re: Performance overhead of get_cycles_sync
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From:
Andi Kleen <ak@...>
To: <mingo@...>
Cc: <linux-kernel@...>
Subject:
Re: Performance overhead of get_cycles_sync
Date: Tuesday, December 11, 2007 - 1:23 pm
Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org> writes:
quoted text
> 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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Messages in current thread:
Re: Performance overhead of get_cycles_sync
, Ingo Molnar
, (Tue Dec 11, 10:27 am)
Re: [kvm-devel] Performance overhead of get_cycles_sync
, Joerg Roedel
, (Tue Dec 11, 5:26 pm)
Re: Performance overhead of get_cycles_sync
, Arjan van de Ven
, (Tue Dec 11, 12:35 pm)
Re: Performance overhead of get_cycles_sync
, Ingo Molnar
, (Tue Dec 11, 1:03 pm)
Re: Performance overhead of get_cycles_sync
, Andi Kleen
, (Tue Dec 11, 1:23 pm)
Re: Performance overhead of get_cycles_sync
, Ingo Molnar
, (Tue Dec 11, 4:19 pm)
Re: Performance overhead of get_cycles_sync
, Ingo Molnar
, (Tue Dec 11, 4:29 pm)
Re: Performance overhead of get_cycles_sync
, Dor Laor
, (Tue Dec 11, 11:03 am)
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