From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933019AbbELNuQ (ORCPT ); Tue, 12 May 2015 09:50:16 -0400 Received: from mga14.intel.com ([192.55.52.115]:64866 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932549AbbELNuO (ORCPT ); Tue, 12 May 2015 09:50:14 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,415,1427785200"; d="scan'208";a="570116759" Message-ID: <1431438610.20417.0.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: Rik van Riel Cc: linux-kernel@vger.kernel.org, mgorman@suse.de, peterz@infradead.org, jhladky@redhat.com Date: Tue, 12 May 2015 16:50:10 +0300 In-Reply-To: <554D1681.7040902@redhat.com> 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> 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 On Fri, 2015-05-08 at 16:03 -0400, Rik van Riel wrote: > Currently the load balancer has a preference for moving > tasks to their preferred nodes (NUMA_FAVOUR_HIGHER, true), > but there is no resistance to moving tasks away from their > preferred nodes (NUMA_RESIST_LOWER, false). That setting > was arrived at after a fair amount of experimenting, and > is probably correct. FYI, (NUMA_RESIST_LOWER, true) does not make any difference for me.