From mboxrd@z Thu Jan  1 00:00:00 1970
From: Emmanuel Ackaouy <ackaouy@gmail.com>
Subject: Re: question regarding dom0 scheduling
Date: Fri, 6 Jul 2007 22:26:07 +0200
Message-ID: <301bf561a729e36766b1e2910557fef8@gmail.com>
References: <A3258B497F1C1441AD36A2E8B45FD628435CB2@scsmsx412.amr.corp.intel.com>
Mime-Version: 1.0 (Apple Message framework v624)
Content-Type: text/plain; charset=US-ASCII; format=flowed
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <A3258B497F1C1441AD36A2E8B45FD628435CB2@scsmsx412.amr.corp.intel.com>
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: "Agarwal, Lomesh" <lomesh.agarwal@intel.com>
Cc: xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org

On Jul 6, 2007, at 22:18, Agarwal, Lomesh wrote:
> How does Xen determines dom0 scheduling? Domains get CPU time slices 
> based on weight and cap but how does Xen determine the time slice for 
> dom0? Does dom0 preempt dom0 ever? If I put an infinite loop in dom0, 
> will that halt the system (as domains will never be scheduled)?

dom0 isn't treated any differently than other domains by default.
you can tweak its weight just like any other domain though.