From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756380Ab3JGS6f (ORCPT ); Mon, 7 Oct 2013 14:58:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33184 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756087Ab3JGS6e (ORCPT ); Mon, 7 Oct 2013 14:58:34 -0400 Message-ID: <5253044C.9090000@redhat.com> Date: Mon, 07 Oct 2013 14:58:20 -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 33/63] sched: Retry migration of tasks to CPU on a preferred node References: <1381141781-10992-1-git-send-email-mgorman@suse.de> <1381141781-10992-34-git-send-email-mgorman@suse.de> In-Reply-To: <1381141781-10992-34-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: > When a preferred node is selected for a tasks there is an attempt to migrate > the task to a CPU there. This may fail in which case the task will only > migrate if the active load balancer takes action. This may never happen if > the conditions are not right. This patch will check at NUMA hinting fault > time if another attempt should be made to migrate the task. It will only > make an attempt once every five seconds. > > Signed-off-by: Mel Gorman > Signed-off-by: Peter Zijlstra Reviewed-by: Rik van Riel -- All rights reversed From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f179.google.com (mail-pd0-f179.google.com [209.85.192.179]) by kanga.kvack.org (Postfix) with ESMTP id E4C2B6B0036 for ; Mon, 7 Oct 2013 14:58:31 -0400 (EDT) Received: by mail-pd0-f179.google.com with SMTP id v10so7612628pde.10 for ; Mon, 07 Oct 2013 11:58:31 -0700 (PDT) Message-ID: <5253044C.9090000@redhat.com> Date: Mon, 07 Oct 2013 14:58:20 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 33/63] sched: Retry migration of tasks to CPU on a preferred node References: <1381141781-10992-1-git-send-email-mgorman@suse.de> <1381141781-10992-34-git-send-email-mgorman@suse.de> In-Reply-To: <1381141781-10992-34-git-send-email-mgorman@suse.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Peter Zijlstra , Srikar Dronamraju , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML On 10/07/2013 06:29 AM, Mel Gorman wrote: > When a preferred node is selected for a tasks there is an attempt to migrate > the task to a CPU there. This may fail in which case the task will only > migrate if the active load balancer takes action. This may never happen if > the conditions are not right. This patch will check at NUMA hinting fault > time if another attempt should be made to migrate the task. It will only > make an attempt once every five seconds. > > Signed-off-by: Mel Gorman > Signed-off-by: Peter Zijlstra Reviewed-by: Rik van Riel -- All rights reversed -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org