From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752824Ab3LREDM (ORCPT ); Tue, 17 Dec 2013 23:03:12 -0500 Received: from LGEMRELSE6Q.lge.com ([156.147.1.121]:48457 "EHLO LGEMRELSE6Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751936Ab3LREDK (ORCPT ); Tue, 17 Dec 2013 23:03:10 -0500 X-AuditID: 9c930179-b7d01ae000005b41-a9-52b11e7c4f72 From: Namhyung Kim To: Andi Kleen Cc: Frederic Weisbecker , Ingo Molnar , Alexander Shishkin , Peter Zijlstra , Arnaldo Carvalho de Melo , Ingo Molnar , linux-kernel@vger.kernel.org, David Ahern , Jiri Olsa , Mike Galbraith , Paul Mackerras , Stephane Eranian , Adrian Hunter Subject: Re: [PATCH v0 00/71] perf: Add support for Intel Processor Trace References: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> <20131211130448.GA2480@gmail.com> <87r49jttqr.fsf@ashishki-desk.ger.corp.intel.com> <20131211134724.GC3101@gmail.com> <87bo0ht5nj.fsf@ashishki-desk.ger.corp.intel.com> <20131216143751.GA7959@gmail.com> <20131216151852.GW22695@tassilo.jf.intel.com> <20131216153008.GA26686@localhost.localdomain> <20131216154527.GX22695@tassilo.jf.intel.com> Date: Wed, 18 Dec 2013 13:03:07 +0900 In-Reply-To: <20131216154527.GX22695@tassilo.jf.intel.com> (Andi Kleen's message of "Mon, 16 Dec 2013 07:45:27 -0800") Message-ID: <87y53ig610.fsf@sejong.aot.lge.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andi, On Mon, 16 Dec 2013 07:45:27 -0800, Andi Kleen wrote: >> My hope has always been that we can make a userspace function graph tracer >> out of its dumps. And I think we can, I'm pretty sure that would be a useful tool. > > I wrote one, based on the __fentry__, like the kernel: > http://github.com/andikleen/ftracer Oh, I'm writing a similar one too. I'll take a look at yours. Thanks, Namhyung