Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756947Ab2EGP3d (ORCPT ); Mon, 7 May 2012 11:29:33 -0400 Received: from casper.infradead.org ([85.118.1.10]:60068 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756489Ab2EGP3a (ORCPT ); Mon, 7 May 2012 11:29:30 -0400 Subject: Re: [PATCH 4/7] perf/x86-ibs: Add support for IBS pseudo events From: Peter Zijlstra To: Stephane Eranian Cc: Robert Richter , Arnaldo Carvalho de Melo , Ingo Molnar , Jiri Olsa , LKML In-Reply-To: References: <1335983192-23731-1-git-send-email-robert.richter@amd.com> <1335983192-23731-5-git-send-email-robert.richter@amd.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 07 May 2012 17:29:17 +0200 Message-ID: <1336404557.27020.69.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 898 Lines: 21 On Mon, 2012-05-07 at 17:21 +0200, Stephane Eranian wrote: > There is something I don't quite understand with those pseudo-events. > Is it the case that by construction, it means you can only measure > on pseudo-event at a time? Supposed I want to look at cache-misses. > For each miss, I'd like to know where it missed, any TLB impacts. All > of that in one run with no multiplexing. Can I do this with your > pseudo-events? > Not from how I read the patch, a pseudo event will count as a full event and since the IBS things only have a single thing its full. If you want multiple of these you'd have to get the raw stream and demux in userspace. -- 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/