Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755817AbaGaGnW (ORCPT ); Thu, 31 Jul 2014 02:43:22 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46491 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751117AbaGaGnV (ORCPT ); Thu, 31 Jul 2014 02:43:21 -0400 Date: Thu, 31 Jul 2014 02:42:54 -0400 From: Rik van Riel To: Aaron Lu Cc: Peter Zijlstra , LKML , lkp@01.org, jhladky@redhat.com Subject: Re: [LKP] [sched/numa] a43455a1d57: +94.1% proc-vmstat.numa_hint_faults_local Message-ID: <20140731024254.3dad1156@annuminas.surriel.com> In-Reply-To: <20140731050454.GA9386@aaronlu.sh.intel.com> References: <53d70ee6.JsUEmW5dWsv8dev+%fengguang.wu@intel.com> <53D72FF5.90908@intel.com> <20140729023940.37b6aebc@annuminas.surriel.com> <20140729081712.GS20603@laptop.programming.kicks-ass.net> <20140729160437.4561742f@annuminas.surriel.com> <20140730021425.GA25023@aaronlu.sh.intel.com> <53D9003F.3050900@redhat.com> <20140731050454.GA9386@aaronlu.sh.intel.com> Organization: Red Hat, Inc. MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 31 Jul 2014 13:04:54 +0800 Aaron Lu wrote: > On Wed, Jul 30, 2014 at 10:25:03AM -0400, Rik van Riel wrote: > > On 07/29/2014 10:14 PM, Aaron Lu wrote: > > >> +#define NUMA_SCALE 1024 > > >> +#define NUMA_MOVE_THRESH (5 * NUMA_SCALE / 100) > > > > It would be good to see if changing NUMA_MOVE_THRESH to > > (NUMA_SCALE / 8) does the trick. FWIW, running with NUMA_MOVE_THRESH set to (NUMA_SCALE / 8) seems to resolve the SPECjbb2005 threshold on my system. I will run some more sanity tests later today... -- All rights reversed. -- 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/