From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: [PATCH] perfc: count number of explicit vcpu yields Date: Mon, 9 Nov 2015 10:02:45 -0500 Message-ID: <5640B595.6050803@oracle.com> References: <1447077658-6997-1-git-send-email-ian.campbell@citrix.com> <1447080838.2722.8.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1447080838.2722.8.camel@citrix.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: Dario Faggioli , Ian Campbell , xen-devel@lists.xen.org Cc: george.dunlap@citrix.com, jbeulich@suse.com List-Id: xen-devel@lists.xenproject.org On 11/09/2015 09:53 AM, Dario Faggioli wrote: > On Mon, 2015-11-09 at 14:00 +0000, Ian Campbell wrote: >> Signed-off-by: Ian Campbell >> > Reviewed-by: Dario Faggioli > > And, while we're here, I've been thinking since a while to try > implementing an xl interface for these counters... How bad of an idea > is that? > > Is something like that possible already via Boris' PMU work? VPMU only covers CPU's hardware counters and this patch deals with software events in the hypervisor. As far as xl accessibility --- doesn't xenperf already read them out? -boris