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Re: [PATCH] raise tsc clocksource rating

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From: Ingo Molnar <mingo@...>
To: Zachary Amsden <zach@...>
Cc: Glauber de Oliveira Costa <gcosta@...>, <linux-kernel@...>, <tglx@...>, <rusty@...>, <jeremy@...>, <--cc@...>, <avi@...>, <kvm-devel@...>, Glauber de Oliveira Costa <glauber@...>, Dan Hecht <dhecht@...>, Garrett Smith <garrett@...>
Subject: Re: [PATCH] raise tsc clocksource rating
Date: Monday, October 29, 2007 - 7:17 pm

* Zachary Amsden <zach@vmware.com> wrote:


i know it's not an optimization issue. Your current pessimisation of 
even perfect TSCs _is_ an optimization issue.

(and note that if the TSC is unstable the guest will/should notice it 
and will fall back to the hyper clocksource)

	Ingo
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Messages in current thread:
[PATCH] raise tsc clocksource rating, Glauber de Oliveira Costa..., (Mon Oct 29, 7:10 pm)
Re: [PATCH] raise tsc clocksource rating, H. Peter Anvin, (Mon Oct 29, 8:17 pm)
Re: [PATCH] raise tsc clocksource rating, Zachary Amsden, (Mon Oct 29, 6:42 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Mon Oct 29, 6:48 pm)
Re: [PATCH] raise tsc clocksource rating, Zachary Amsden, (Mon Oct 29, 6:55 pm)
Re: [PATCH] raise tsc clocksource rating, Glauber de Oliveira Costa..., (Tue Oct 30, 7:59 am)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Mon Oct 29, 7:02 pm)
Re: [PATCH] raise tsc clocksource rating, Dan Hecht, (Mon Oct 29, 7:24 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Tue Oct 30, 3:14 am)
Re: [kvm-devel] [PATCH] raise tsc clocksource rating, Avi Kivity, (Tue Oct 30, 12:24 am)
Re: [PATCH] raise tsc clocksource rating, Zachary Amsden, (Mon Oct 29, 7:13 pm)
Re: [PATCH] raise tsc clocksource rating, Glauber de Oliveira Costa..., (Tue Oct 30, 8:02 am)
Re: [PATCH] raise tsc clocksource rating, Zachary Amsden, (Tue Oct 30, 1:58 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Mon Oct 29, 7:17 pm)
Re: [PATCH] raise tsc clocksource rating, Jeremy Fitzhardinge, (Mon Oct 29, 6:52 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Mon Oct 29, 6:55 pm)
Re: [PATCH] raise tsc clocksource rating, Jeremy Fitzhardinge, (Mon Oct 29, 7:17 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Mon Oct 29, 7:21 pm)
Re: [PATCH] raise tsc clocksource rating, Jeremy Fitzhardinge, (Mon Oct 29, 7:33 pm)
Re: [PATCH] raise tsc clocksource rating, Jeremy Fitzhardinge, (Mon Oct 29, 6:45 pm)
Re: [PATCH] raise tsc clocksource rating, Thomas Gleixner, (Mon Oct 29, 6:17 pm)
Re: [PATCH] raise tsc clocksource rating, Rusty Russell, (Mon Oct 29, 10:39 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Tue Oct 30, 3:37 am)
Re: [PATCH] raise tsc clocksource rating, Glauber de Oliveira Costa..., (Tue Oct 30, 8:13 am)
Re: [PATCH] raise tsc clocksource rating, Rusty Russell, (Tue Oct 30, 6:52 am)
Re: [PATCH] raise tsc clocksource rating, john stultz, (Mon Oct 29, 9:26 pm)
Re: [PATCH] raise tsc clocksource rating, Ingo Molnar, (Mon Oct 29, 6:36 pm)