From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752857AbaIXVto (ORCPT ); Wed, 24 Sep 2014 17:49:44 -0400 Received: from mga02.intel.com ([134.134.136.20]:17014 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750821AbaIXVtm (ORCPT ); Wed, 24 Sep 2014 17:49:42 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,591,1406617200"; d="scan'208";a="578482865" From: Andi Kleen To: "Elliott\, Robert \(Server Storage\)" Cc: Steven Rostedt , "linux-kernel\@vger.kernel.org" , "Jens Axboe \ \(axboe\@kernel.dk\)" , Christoph Hellwig Subject: Re: ftrace function-graph and interprocessor interrupts References: <94D0CD8314A33A4D9D801C0FE68B402958C9BE4D@G9W0745.americas.hpqcorp.net> Date: Wed, 24 Sep 2014 14:49:41 -0700 In-Reply-To: <94D0CD8314A33A4D9D801C0FE68B402958C9BE4D@G9W0745.americas.hpqcorp.net> (Robert Elliott's message of "Wed, 24 Sep 2014 21:14:13 +0000") Message-ID: <87mw9oelje.fsf@tassilo.jf.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org "Elliott, Robert (Server Storage)" writes: > The function-graph tracer marks some interrupt handler functions > with ==========> and <========== labels. I'm not sure the marking is really that useful. Isn't it always obvious from the function names where an interrupt starts/end? -Andi -- ak@linux.intel.com -- Speaking for myself only