From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: Re: [Xen-users] About profiling xen Date: Mon, 05 Oct 2009 13:53:01 -0700 Message-ID: <4ACA5CAD.6020509@goop.org> References: <197376.79799.qm@web94607.mail.in2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <197376.79799.qm@web94607.mail.in2.yahoo.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Fasiha Ashraf Cc: "Fajar A." , xen , xen-users@lists.xensource.com, Marco Tizzoni List-Id: xen-devel@lists.xenproject.org On 10/05/09 04:38, Fasiha Ashraf wrote: > Is this the issue that is affecting guest to guest throughput? Since I > have timer frequency 1000Hz and high resolution timer both enabled in > my dom0. Also i am using cup cores pinned for each VM an Dom0. Please > guide me some more about getting increased throughput between guests. > I haven't specifically looked at the problem of domain<->domain performance. The quantization of time at 1kHz is a concern, but its not clear to me whether it comes from Linux, Xen or some interaction between them. J