From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756731Ab3A0M6P (ORCPT ); Sun, 27 Jan 2013 07:58:15 -0500 Received: from mx1.redhat.com ([209.132.183.28]:22517 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751247Ab3A0M6L (ORCPT ); Sun, 27 Jan 2013 07:58:11 -0500 Date: Sun, 27 Jan 2013 13:57:51 +0100 From: Jiri Olsa To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Corey Ashford , Frederic Weisbecker , Ingo Molnar , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo , Andi Kleen , David Ahern Subject: Re: [PATCH 0/9] perf: Adding better precise_ip field handling Message-ID: <20130127125751.GA2369@krava.brq.redhat.com> References: <1359221275-24254-1-git-send-email-jolsa@redhat.com> <20130127124133.GA3933@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130127124133.GA3933@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 27, 2013 at 01:41:33PM +0100, Ingo Molnar wrote: > > * Jiri Olsa wrote: > > > hi, > > adding sysfs attribute to specify the maximum allowed value > > for perf_event_attr::precise_ip field. > > > > Adding functionality for simple 'precise' term to get the > > maximum allowed value for perf_event_attr::precise_ip field. > > > > And finally adding several precise automated tests. > > Ok - could we please as a next step turn on cycles:pp as the > default in all the profiling tools (perf record, perf top), > transparently? I.e. if the CPU supports it then use it, if not > then don't complain, just use the highest grade profiling method > available. yep, we discussed with Arnaldo this would be good to have jirka