From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1M8Jfz-000297-Oj
	for qemu-devel@nongnu.org; Sun, 24 May 2009 15:48:07 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1M8Jfu-00026Z-3u
	for qemu-devel@nongnu.org; Sun, 24 May 2009 15:48:06 -0400
Received: from [199.232.76.173] (port=52657 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1M8Jfu-00026N-0X
	for qemu-devel@nongnu.org; Sun, 24 May 2009 15:48:02 -0400
Received: from e8.ny.us.ibm.com ([32.97.182.138]:51885)
	by monty-python.gnu.org with esmtps
	(TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60)
	(envelope-from <aliguori@us.ibm.com>) id 1M8Jft-0002zz-LF
	for qemu-devel@nongnu.org; Sun, 24 May 2009 15:48:01 -0400
Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234])
	by e8.ny.us.ibm.com (8.13.1/8.13.1) with ESMTP id n4OJbk29029124
	for <qemu-devel@nongnu.org>; Sun, 24 May 2009 15:37:46 -0400
Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216])
	by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id
	n4OJm0OU234002
	for <qemu-devel@nongnu.org>; Sun, 24 May 2009 15:48:00 -0400
Received: from d01av02.pok.ibm.com (loopback [127.0.0.1])
	by d01av02.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id
	n4OJjuI0004007
	for <qemu-devel@nongnu.org>; Sun, 24 May 2009 15:45:56 -0400
Message-ID: <4A19A46E.1070308@us.ibm.com>
Date: Sun, 24 May 2009 14:47:58 -0500
From: Anthony Liguori <aliguori@us.ibm.com>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] [PATCH 2/2] set migration max downtime
References: <1242946174-30451-1-git-send-email-glommer@redhat.com>
	<1242946174-30451-2-git-send-email-glommer@redhat.com>
	<1242946174-30451-3-git-send-email-glommer@redhat.com>
	<4A160950.8020906@codemonkey.ws> <4A192A67.8050801@redhat.com>
In-Reply-To: <4A192A67.8050801@redhat.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Avi Kivity <avi@redhat.com>
Cc: Glauber Costa <glommer@redhat.com>, qemu-devel@nongnu.org

Avi Kivity wrote:
> Anthony Liguori wrote:
>> Glauber Costa wrote:
>>> provide a monitor command to allow one to set the maximum
>>> downtime he is willing to suffer during migration, in miliseconds.
>>>   
>>
>> I think microseconds makes more sense.
>
> I prefer seconds (and bytes).

As a floating point value?

I would think the typical down time would be in the ms-us range so we're 
talking 0.030 - 0.000030 if we express in seconds.

Regards,

Anthony Liguori