From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030696Ab2GLQOF (ORCPT ); Thu, 12 Jul 2012 12:14:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:13757 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030404Ab2GLQOD (ORCPT ); Thu, 12 Jul 2012 12:14:03 -0400 Date: Thu, 12 Jul 2012 19:13:59 +0300 From: Gleb Natapov To: David Ahern Cc: Peter Zijlstra , Avi Kivity , LKML Subject: Re: perf with precise attribute kills all KVM based VMs Message-ID: <20120712161359.GJ7298@redhat.com> References: <4FFAEFF1.9000706@redhat.com> <1341845999.3462.86.camel@twins> <4FFCBD00.1030109@gmail.com> <20120711071006.GF23898@redhat.com> <1342000187.3462.134.camel@twins> <20120711095337.GJ23898@redhat.com> <4FFE4E8D.90606@gmail.com> <20120712042923.GG7298@redhat.com> <4FFEEB55.5070009@gmail.com> <20120712160634.GI7298@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120712160634.GI7298@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 12, 2012 at 07:06:35PM +0300, Gleb Natapov wrote: > > > > So, is the idea of your patch to not enable the PEBS in guest mode? > > > Yes, the idea of my patch is to disable PEBS and the guest entry. > BTW what is you host cpu? My patch works only for those that have global control register to disable PMU events, but that should cover most of moder cpus. -- Gleb.