Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758793AbaGYHf3 (ORCPT ); Fri, 25 Jul 2014 03:35:29 -0400 Received: from mail-wg0-f43.google.com ([74.125.82.43]:47590 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750818AbaGYHf2 (ORCPT ); Fri, 25 Jul 2014 03:35:28 -0400 Message-ID: <1406273721.5162.9.camel@marge.simpson.net> Subject: Re: [LKP] [rcu] c0f489d2c6f: -1.5% netperf.Throughput_tps From: Mike Galbraith To: Aaron Lu Cc: "Paul E. McKenney" , Jet Chen , LKML , lkp@01.org Date: Fri, 25 Jul 2014 09:35:21 +0200 In-Reply-To: <53D1FD0E.4080406@intel.com> References: <53d1f486.t70cWJ/Ilm6Y3o5/%fengguang.wu@intel.com> <53D1FD0E.4080406@intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 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, 2014-07-25 at 14:45 +0800, Aaron Lu wrote: > FYI, we noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > commit c0f489d2c6fec8994c642c2ec925eb858727dc7b ("rcu: Bind grace-period kthreads to non-NO_HZ_FULL CPUs") > > abaa93d9e1de2c2 c0f489d2c6fec8994c642c2ec > --------------- ------------------------- > 12654 ~ 0% -1.5% 12470 ~ 0% ivb43/netperf/300s-25%-TCP_CRR > 12654 ~ 0% -1.5% 12470 ~ 0% TOTAL netperf.Throughput_tps Out of curiosity, what parameters do you use for this test? In my piddling around with high frequency switching loads, they tend to have too much build to build and boot to boot variance to track 1.5%. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/