From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH 10/18] Keep SMP VMs more in sync on unstable TSC
Date: Wed, 14 Jul 2010 22:13:58 -0400
Message-ID: <4C3E6EE6.2010606@redhat.com>
References: <1278987938-23873-1-git-send-email-zamsden@redhat.com> <1278987938-23873-11-git-send-email-zamsden@redhat.com>
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Cc: KVM <kvm@vger.kernel.org>, Avi Kivity <avi@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Glauber Costa <glommer@redhat.com>,
	Linux-kernel <linux-kernel@vger.kernel.org>
To: Zachary Amsden <zamsden@redhat.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <1278987938-23873-11-git-send-email-zamsden@redhat.com>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

On 07/12/2010 10:25 PM, Zachary Amsden wrote:
> SMP VMs on machines with unstable TSC have their TSC offset adjusted by the
> local offset delta from last measurement.  This does not take into account how
> long it has been since the measurement, leading to drift.  Minimize the drift
> by accounting for any time difference the kernel has observed.
>
> Signed-off-by: Zachary Amsden<zamsden@redhat.com>

Acked-by: Rik van Riel <riel@redhat.com>

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