From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759800Ab2CUSN0 (ORCPT ); Wed, 21 Mar 2012 14:13:26 -0400 Received: from tx2ehsobe002.messaging.microsoft.com ([65.55.88.12]:19023 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754301Ab2CUSNY (ORCPT ); Wed, 21 Mar 2012 14:13:24 -0400 X-SpamScore: -15 X-BigFish: VPS-15(zz1432N98dK4015I148cMzz1202hzzz2dh668h839h944hd25h) X-Forefront-Antispam-Report: CIP:163.181.249.109;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0M18YM2-02-BFZ-02 X-M-MSG: Date: Wed, 21 Mar 2012 19:13:14 +0100 From: Robert Richter To: Ingo Molnar CC: Peter Zijlstra , Arnaldo Carvalho de Melo , Stephane Eranian , LKML Subject: Re: [PATCH 4/4] perf script: Add script to collect and display IBS samples Message-ID: <20120321181314.GK16322@erda.amd.com> References: <20111223135340.GB21382@elte.hu> <1324649698.24803.55.camel@twins> <20111223144040.GB2297@elte.hu> <20111223161701.GF16765@erda.amd.com> <20111223163930.GA5983@elte.hu> <20111223165030.GG16765@erda.amd.com> <20111230095521.GA12077@elte.hu> <20120202112133.GR16322@erda.amd.com> <20120308121924.GA19674@elte.hu> <20120309114112.GR16322@erda.amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20120309114112.GR16322@erda.amd.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo, On 09.03.12 12:41:12, Robert Richter wrote: > > I suspect being able to skid-less profile on AMD CPUs, using > > IBS, would be a useful feature to users. What would be required > > for that to work? > > thanks for putting this into tip. This helps a lot. > > I am just looking into skid-less sampling. The effort of attaching the > rip taken from the IBS sample for events 0x76/0xc1 should be feasable. I have some patches ready for release after the merge window. I noticed conflicts between my development tree on top of tip/perf/x86-ibs and tip/perf/core. Could you merge tip/perf/core into tip/perf/x86-ibs? I will rebase my current patches then. This avoids diverging the trees to much and reduces later conflicts. Thanks, -Robert -- Advanced Micro Devices, Inc. Operating System Research Center