From mboxrd@z Thu Jan 1 00:00:00 1970 From: Malcolm Crossley Subject: Re: Xenoprof on Xen-4.1.2 Date: Tue, 29 May 2012 17:41:48 +0100 Message-ID: <4FC4FC4C.5040603@citrix.com> References: <20120529152930.GE8293@phenom.dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120529152930.GE8293@phenom.dumpdata.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On 29/05/12 16:29, Konrad Rzeszutek Wilk wrote: > On Tue, May 29, 2012 at 01:38:37PM +0800, suixiufeng wrote: >> Hi: >> I want to use xenoprof (patched oprofile-0.9.5) to profile VM (both HVM >> and PV) apps and kernel performance based on passive domains. My platform >> is as follows: >> CPU:Intel(R) Xeon(R) CPU E5620 @ 2.40GHz >> Hypervosir: Xen 4.1.2 >> Dom0 kernel: linux 2.6.38.2 >> I am not sure whether xenoprof can work on this platform. >> * As soon as I start xenoprof in passive domain mode, the VM can't run >> workload immediately (The VM doesn't crash. If I ping the VM from other >> machine, the response time is really high ). I can't input any commands >> through the console prompt. * > Do you have the patches applied to the kernel to use oprofile? > The Xeon E5620 processor has model number 0x2c (Westmere class), neither the Xen or the latest upstream Linux kernel have oprofile support for this processor. http://lxr.linux.no/linux+*/arch/x86/oprofile/nmi_int.c#L642 http://xenbits.xen.org/hg/xen-unstable.hg/file/52ffce7a036e/xen/arch/x86/oprofile/nmi_int.c#l344 >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xen.org >> http://lists.xen.org/xen-devel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel