From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752263Ab3KSMIX (ORCPT ); Tue, 19 Nov 2013 07:08:23 -0500 Received: from merlin.infradead.org ([205.233.59.134]:36183 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751464Ab3KSMIW (ORCPT ); Tue, 19 Nov 2013 07:08:22 -0500 Date: Tue, 19 Nov 2013 13:08:13 +0100 From: Peter Zijlstra To: David Ahern Cc: Namhyung Kim , Ingo Molnar , Arnaldo Carvalho de Melo , linux-kernel@vger.kernel.org, jolsa@redhat.com, Frederic Weisbecker , Mike Galbraith , Stephane Eranian Subject: Re: [PATCH 4/5] perf record: mmap output file - v5 Message-ID: <20131119120813.GL3866@twins.programming.kicks-ass.net> References: <20131112150751.GA19321@ghostprotocols.net> <20131112151944.GX5056@laptop.programming.kicks-ass.net> <52824AE3.4050207@gmail.com> <20131112211121.GC25913@gmail.com> <20131113113439.GI21461@twins.programming.kicks-ass.net> <52864ED1.1080607@gmail.com> <20131118090117.GE3866@twins.programming.kicks-ass.net> <20131118094036.GA26251@gmail.com> <877gc5utkf.fsf@sejong.aot.lge.com> <528AB229.6030603@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <528AB229.6030603@gmail.com> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 18, 2013 at 05:34:49PM -0700, David Ahern wrote: > I think Peter is asking about: > perf record -e faults -c 1 --call-graph dwarf,8192 -a -- sleep 1 > > And as expected it is a massive feedback spiraling out of control. I was and good to know, thanks for testing.