From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Is there any mechanism in XEN can use to limit the memory bandwidth of each domain? Date: Mon, 6 Dec 2010 12:55:57 -0500 Message-ID: <20101206175557.GB26693@dumpdata.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: =?utf-8?B?6LS66bmP?= Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Mon, Dec 06, 2010 at 06:00:14PM +0800, =E8=B4=BA=E9=B9=8F wrote: > Hi, all: > As we all know, Xen can alloc different amount of memory to > different VMs, but these VMs access memory by one shared memory bus, wh= ich > means if one VM access the memory very frequently, the bandwidth of the > memory shared by the other VM will decrease. > So I'm wondering is there any mechanism in XEN can reserve the = limit > bandwidth of the memory for different VMs? As in NUMA? There is work to make that be provided to Xen guests.