From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756533Ab3JGSok (ORCPT ); Mon, 7 Oct 2013 14:44:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:21471 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755693Ab3JGSoj (ORCPT ); Mon, 7 Oct 2013 14:44:39 -0400 Message-ID: <52530108.2000505@redhat.com> Date: Mon, 07 Oct 2013 14:44:24 -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 28/63] sched: Remove check that skips small VMAs References: <1381141781-10992-1-git-send-email-mgorman@suse.de> <1381141781-10992-29-git-send-email-mgorman@suse.de> In-Reply-To: <1381141781-10992-29-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: > task_numa_work skips small VMAs. At the time the logic was to reduce the > scanning overhead which was considerable. It is a dubious hack at best. > It would make much more sense to cache where faults have been observed > and only rescan those regions during subsequent PTE scans. Remove this > hack as motivation to do it properly in the future. > > Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel -- All rights reversed