Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752239Ab3G3Pwf (ORCPT ); Tue, 30 Jul 2013 11:52:35 -0400 Received: from merlin.infradead.org ([205.233.59.134]:53266 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751506Ab3G3Pwe (ORCPT ); Tue, 30 Jul 2013 11:52:34 -0400 Date: Tue, 30 Jul 2013 17:52:12 +0200 From: Peter Zijlstra To: Stephane Eranian Cc: Ingo Molnar , LKML , "mingo@elte.hu" , "ak@linux.intel.com" , Arnaldo Carvalho de Melo , Jiri Olsa , Namhyung Kim Subject: Re: [PATCH 0/8] perf: add ability to sample physical data addresses Message-ID: <20130730155212.GB32226@laptop.programming.kicks-ass.net> References: <20130628095828.GG29209@dyad.programming.kicks-ass.net> <20130708081919.GV23916@twins.programming.kicks-ass.net> <20130730083758.GH3008@twins.programming.kicks-ass.net> <20130730090202.GL3008@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Content-Length: 1092 Lines: 27 On Tue, Jul 30, 2013 at 04:21:41PM +0200, Stephane Eranian wrote: > Peter, > > One thing that bothers me with the MMAP2 approach is that > it forces integration into perf. This is a good (TM) thing, yes? ;-) > Now, you will need to analyze > the MMAP2 records. With my sample_type approach, you > simply needed a cmdline option on perf record, and then > you could dump the sample using perf report -D and feed > them into a post-processing script. But now, the analysis > needs to be integrated into perf or the tool needs to parse > the full perf.data file. So the disadvantage of the sample_type approach is that it generates more data and bloats the fast path. If its useful it shouldn't live in a script anyway ;-) Also if the script muck can't deal with the side-band information its a worse broken piece of crap than I thought it was. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/