From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933290Ab2GCHg3 (ORCPT ); Tue, 3 Jul 2012 03:36:29 -0400 Received: from ozlabs.org ([203.10.76.45]:35106 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752478Ab2GCHg2 (ORCPT ); Tue, 3 Jul 2012 03:36:28 -0400 Message-ID: <1341300987.11663.15.camel@concordia> Subject: Re: [PATCH] perf, x86: Enabled PEBS event to be exported in a raw format From: Michael Ellerman To: Feng Tang Cc: Arnaldo Carvalho de Melo , Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org, x86@kernel.org, Stephane Eranian , Andi Kleen Date: Tue, 03 Jul 2012 17:36:27 +1000 In-Reply-To: <1340899250-26803-1-git-send-email-feng.tang@intel.com> References: <1340899250-26803-1-git-send-email-feng.tang@intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2012-06-29 at 00:00 +0800, Feng Tang wrote: > From: Andi Kleen > > Add support for reporting PEBS records in a raw format that can > be then parsed by perf script. > > This is roughly similar to the existing AMD IBS support. > > This is mainly for advanced users and to experiment with > new usages. Widespread PEBS usages are expected to get higher > level interfaces over time, like the existing "precise ip" support. Hi folks, Pardon if I slightly hijack this thread, but we'd like to do something similar to this on powerpc. I've been telling people not to use PERF_SAMPLE_RAW because it provides no way for the consumer to know what data they're getting, and it's not extensible in any way. So is shovelling things out using PERF_SAMPLE_RAW generally acceptable for "advanced usage" scenarios? cheers