Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934032AbbEMK76 (ORCPT ); Wed, 13 May 2015 06:59:58 -0400 Received: from mga03.intel.com ([134.134.136.65]:58105 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933516AbbEMK7y (ORCPT ); Wed, 13 May 2015 06:59:54 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,420,1427785200"; d="scan'208";a="725216950" Message-ID: <1431514790.20417.18.camel@sauron.fi.intel.com> Subject: Re: [PATCH] numa,sched: only consider less busy nodes as numa balancing destination From: Artem Bityutskiy Reply-To: dedekind1@gmail.com To: Peter Zijlstra Cc: Rik van Riel , linux-kernel@vger.kernel.org, mgorman@suse.de, jhladky@redhat.com Date: Wed, 13 May 2015 13:59:50 +0300 In-Reply-To: <20150513062906.GJ3007@worktop.Skamania.guest> References: <1430908530.7444.145.camel@sauron.fi.intel.com> <20150506114128.0c846a37@cuia.bos.redhat.com> <1431090801.1418.87.camel@sauron.fi.intel.com> <554D1681.7040902@redhat.com> <1431438610.20417.0.camel@sauron.fi.intel.com> <55522005.1080705@redhat.com> <20150513062906.GJ3007@worktop.Skamania.guest> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4 (3.10.4-4.fc20) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 769 Lines: 19 On Wed, 2015-05-13 at 08:29 +0200, Peter Zijlstra wrote: > > 2) ensure that rq->nr_numa_running and rq->nr_preferred_running also > > get incremented for kernel threads that are bound to a particular > > CPU - currently CPU-bound kernel threads will cause the NUMA > > statistics to look like a CPU has tasks that do not belong on that > > NUMA node > > I'm thinking accounting those to nr_pinned, lemme see how that works > out. Does not make any difference, avg. response time is still ~1.4sec. Thank you! -- 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/