From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: Xen 3.4.1 NUMA support Date: Mon, 9 Nov 2009 11:33:41 +0000 Message-ID: <4AF7FE15.6070503@eu.citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Return-path: 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: Dan Magenheimer Cc: "xen-devel@lists.xensource.com" , Keir Fraser , Papagiannis Anastasios List-Id: xen-devel@lists.xenproject.org I haven't had time to look at NUMA stuff at all. I probably will look at it eventually, if no one else does, but I'd be happy if someone else could pursue it. -George Dan Magenheimer wrote: > VMware has the notion of a "cell" where VMs can be > scheduled only within a cell, not across cells. > Cell boundaries are determined by VMware by > default, though certains settings can override them. > > An interesting project might be to implement > "numa=cell" for Xen.... or maybe something similar > is already in George Dunlap's scheduler plans? > > >> -----Original Message----- >> From: Keir Fraser [mailto:keir.fraser@eu.citrix.com] >> Sent: Wednesday, November 04, 2009 5:33 AM >> To: Papagiannis Anastasios; xen-devel@lists.xensource.com >> Subject: Re: [Xen-devel] Xen 3.4.1 NUMA support >> >> >> Add Xen boot parameter 'numa=on' to enable NUMA detection. >> Then it's up to >> you to, for example, pin domains to specific nodes, using the >> 'cpus=...' >> option in the domain config file. See /etc/xen/xmexample1 for >> an example of >> its usage. >> >> -- Keir >> >> On 04/11/2009 12:02, "Papagiannis Anastasios" >> wrote: >> >> >>> Hello, >>> >>> does the last version of Xen(3.4.1) support NUMA machines? >>> >> Is there a .pdf >> >>> or a link that can give me some more details about that? I work on a >>> project for xen performace in numa machines. And in xen 3.3.0 this >>> performance isn't good. Have something changed in last version? >>> >>> Thanks in advance, >>> Papagiannis Anastasios >>> >>> >>> _______________________________________________ >>> Xen-devel mailing list >>> Xen-devel@lists.xensource.com >>> http://lists.xensource.com/xen-devel >>> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel >> >>