From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.xen@gmail.com>
Subject: Re: [PATCH] x86/S3: Restore broken vcpu affinity on
 resume (v4)
Date: Wed, 03 Apr 2013 15:29:56 +0100
Message-ID: <CD81FB74.1FD9B%keir.xen@gmail.com>
References: <515AA9BE02000078000C9FEE@nat28.tlf.novell.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <515AA9BE02000078000C9FEE@nat28.tlf.novell.com>
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: Jan Beulich <JBeulich@suse.com>, Ben Guthro <Benjamin.Guthro@citrix.com>
Cc: George Dunlap <George.Dunlap@eu.citrix.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
List-Id: xen-devel@lists.xenproject.org

On 02/04/2013 08:49, "Jan Beulich" <JBeulich@suse.com> wrote:

>>> Thanks George.
>>> 
>>> Jan,
>>> 
>>> Is this a sufficient Ack, or does Kier need to weigh in as well?
>> 
>> Acked-by: Keir Fraser <keir@xen.org>
>> 
>> I kind of feel this sort of thing should be done in dom0 userspace but,
>> pragmatically, I know that's not really going to happen!
> 
> How would that work, considering the Dom0's vCPU affinities are
> equally affected, and considering that all domains get thawed at
> once? Minimally you'd have a burst of (overcommit) load on pCPU0
> right after resume, and whether the system would survive that is
> impossible to predict.

Ha, yes, well you'd put freeze/thaw in dom0 too. Well, it wasn't really a
serious suggestion on my part, what we have works, this new patch will also
work, and I'm happy. :)

 -- Keir