From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: RE: Xen CPU limit? Date: Wed, 31 Mar 2010 08:11:07 +0100 Message-ID: <4BB311AB02000078000380E8@vpn.id2.novell.com> References: <4B991586.30602@cancer.org.uk> <20100329154901.GE1878@reaktio.net> <4BB1C16A0200007800037BB9@vpn.id2.novell.com 20100330075306.GY1878@reaktio.net><20100330075306.GY1878@reaktio.net> <43f035b5-977e-4910-a46e-608d76a9346f@default> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <43f035b5-977e-4910-a46e-608d76a9346f@default> Content-Disposition: inline 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, Martin Lukasik List-Id: xen-devel@lists.xenproject.org >>> Dan Magenheimer 30.03.10 18:14 >>> >But, if I am reading this correctly, 4096 event channels >is the next scalability barrier. If, on a "big" machine, one >tries to run 64 (nearly always idle) guests each configured >with 16 vcpus (because they run a busy database load when >they are not idle), it won't work due to the event channel limit? No, the event channel limit is a per-domain one. Jan