From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754158AbaJGORT (ORCPT ); Tue, 7 Oct 2014 10:17:19 -0400 Received: from mail.kernel.org ([198.145.19.201]:39497 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753122AbaJGORR (ORCPT ); Tue, 7 Oct 2014 10:17:17 -0400 Date: Tue, 7 Oct 2014 11:17:12 -0300 From: Arnaldo Carvalho de Melo To: Borislav Petkov Cc: Jean Pihet , "linux-kernel@vger.kernel.org" , Fu Wei , Robert Richter , Jiri Olsa , David Ahern , Ingo Molnar Subject: Re: [PATCH 1/1] rasd: Use perf_evlist__open() instead of open coded Message-ID: <20141007141712.GK14113@kernel.org> References: <20141006212606.GF14113@kernel.org> <20141007133236.GG14113@kernel.org> <20141007140433.GG30146@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141007140433.GG30146@pd.tnic> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Tue, Oct 07, 2014 at 04:04:33PM +0200, Borislav Petkov escreveu: > On Tue, Oct 07, 2014 at 10:32:36AM -0300, Arnaldo Carvalho de Melo wrote: > > Hopefully we will completely remove the need to set up any thread or cpu > > map, as what you want is syswide tracing, right? > Yeah, I was questioning the need to open at least one thread even for > system-wide tracing. Right, evsel/evlist evolved out of tons of refactoring steps moving stuff out of open coded tools (record, report, top) while trying to make it work for those tools, sometimes this resulted in sub-optimal defaults (or plain bugs) like needing a thread_map and/or a cpu_map to do syswide tracing, need to get that clarified and sorted out. - Arnaldo > See, source libraries are the new great thing for collaborative > development - f*ck "cloud"! > :-D :-) - Arnaldo