From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751691Ab3LKNwe (ORCPT ); Wed, 11 Dec 2013 08:52:34 -0500 Received: from mail-qa0-f43.google.com ([209.85.216.43]:46621 "EHLO mail-qa0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751245Ab3LKNwd (ORCPT ); Wed, 11 Dec 2013 08:52:33 -0500 Date: Wed, 11 Dec 2013 10:52:25 -0300 From: Arnaldo Carvalho de Melo To: Alexander Shishkin Cc: Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Mike Galbraith , Namhyung Kim , Paul Mackerras , Stephane Eranian , Andi Kleen Subject: Re: [PATCH v0 00/71] perf: Add support for Intel Processor Trace Message-ID: <20131211135225.GA1458@ghostprotocols.net> References: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Wed, Dec 11, 2013 at 02:36:12PM +0200, Alexander Shishkin escreveu: > Hi, > > This patchset adds support for Intel Processor Trace (PT) extension [1] of > Intel Architecture that allows the capture of information about software > execution flow, to the perf kernel and userspace infrastructure. We > provide an abstraction for it called "itrace" for "instruction > trace" ([2]). Nice stuff! And big patchset, I'll start by cherry picking the tooling chunks that I find OK, will then comment on whatever is left. While that happens I'm sure the new kernel bits will be discussed. - Arnaldo