From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755021Ab2GIOwz (ORCPT ); Mon, 9 Jul 2012 10:52:55 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:35885 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755000Ab2GIOwx (ORCPT ); Mon, 9 Jul 2012 10:52:53 -0400 Message-ID: <4FFAF042.1050609@gmail.com> Date: Mon, 09 Jul 2012 08:52:50 -0600 From: David Ahern User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: Peter Zijlstra CC: Avi Kivity , Gleb Natapov , LKML Subject: Re: perf with precise attribute kills all KVM based VMs References: <4FFAE6D8.5050609@gmail.com> <20120709141904.GC7298@redhat.com> <1341843844.3462.75.camel@twins> <4FFAED16.7050204@redhat.com> <4FFAEF13.7010108@gmail.com> <1341845396.3462.81.camel@twins> In-Reply-To: <1341845396.3462.81.camel@twins> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/9/12 8:49 AM, Peter Zijlstra wrote: > On Mon, 2012-07-09 at 08:47 -0600, David Ahern wrote: >> >> I found this testing changes to perf-kvm, but found the problem extends >> to just perf-record. With perf-record exclude_guest defaults to 1. See >> tools/perf/util/util.c, event_attr_init(). > > You lost me there.. so perf-record defaults to exclude_guest=1 (which > would make the proposed patch I just send actually possible), but its > still going *bang* ? > I can do the formality of testing your proposed patch, but yes I think so. exclude_guest defaults to 1 because perf_guest defaults to false. David