From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936645Ab3DHPwK (ORCPT ); Mon, 8 Apr 2013 11:52:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:21072 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936624Ab3DHPwI (ORCPT ); Mon, 8 Apr 2013 11:52:08 -0400 Date: Mon, 8 Apr 2013 17:51:56 +0200 From: Jiri Olsa To: Michael Ellerman Cc: Peter Zijlstra , acme@infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, rob@landley.net Subject: Re: [RFC/PATCH] perf: Expand definition of sysfs format attribute Message-ID: <20130408155156.GB1287@krava.redhat.com> References: <1362370865-4437-1-git-send-email-michael@ellerman.id.au> <1365411915.2609.143.camel@laptop> <20130408115749.GB17849@concordia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130408115749.GB17849@concordia> 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 Mon, Apr 08, 2013 at 09:57:50PM +1000, Michael Ellerman wrote: SNIP > > > > ISTR discussing this with Jiri at some point.. I think we ended up with > > being fine with overlapping ranges but having perf issue a warning (not > > an error) when attributes of a single event have overlap. > > OK great. > > > I'm not sure the latter was ever implemented in the userspace side. > > Yeah not that I can see with a quick look. It's fairly advanced usage > IMHO so a warning would be nice, but not essential. oops, missed this email.. sry it should be ok to overlap.. we don't check those ranges in perf tool now.. just take whatever is defined in format file adding the warning to my todo list ;-) jirka