From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756731Ab3JGTH4 (ORCPT ); Mon, 7 Oct 2013 15:07:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:65096 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754000Ab3JGTHz (ORCPT ); Mon, 7 Oct 2013 15:07:55 -0400 Message-ID: <5253067A.2040607@redhat.com> Date: Mon, 07 Oct 2013 15:07:38 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Mel Gorman CC: Peter Zijlstra , Srikar Dronamraju , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML Subject: Re: [PATCH 40/63] sched: numa: Favor placing a task on the preferred node References: <1381141781-10992-1-git-send-email-mgorman@suse.de> <1381141781-10992-41-git-send-email-mgorman@suse.de> In-Reply-To: <1381141781-10992-41-git-send-email-mgorman@suse.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/07/2013 06:29 AM, Mel Gorman wrote: > A tasks preferred node is selected based on the number of faults > recorded for a node but the actual task_numa_migate() conducts a global > search regardless of the preferred nid. This patch checks if the > preferred nid has capacity and if so, searches for a CPU within that > node. This avoids a global search when the preferred node is not > overloaded. > > Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel -- All rights reversed