From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933435AbcFQIvS (ORCPT ); Fri, 17 Jun 2016 04:51:18 -0400 Received: from mx2.suse.de ([195.135.220.15]:35437 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932315AbcFQIvP (ORCPT ); Fri, 17 Jun 2016 04:51:15 -0400 Subject: Re: [PATCH 19/27] mm: Move vmscan writes and file write accounting to the node To: Mel Gorman , Andrew Morton , Linux-MM References: <1465495483-11855-1-git-send-email-mgorman@techsingularity.net> <1465495483-11855-20-git-send-email-mgorman@techsingularity.net> Cc: Rik van Riel , Johannes Weiner , LKML From: Vlastimil Babka Message-ID: <9bafe5ce-9cee-4c83-28a2-df2fb453af19@suse.cz> Date: Fri, 17 Jun 2016 10:51:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 MIME-Version: 1.0 In-Reply-To: <1465495483-11855-20-git-send-email-mgorman@techsingularity.net> Content-Type: text/plain; charset=iso-8859-2; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/09/2016 08:04 PM, Mel Gorman wrote: > As reclaim is now node-based, it follows that page write activity > due to page reclaim should also be accounted for on the node. For > consistency, also account page writes and page dirtying on a per-node > basis. > > After this patch, there are a few remaining zone counters that may > appear strange but are fine. NUMA stats are still per-zone as this is a > user-space interface that tools consume. NR_MLOCK, NR_SLAB_*, NR_PAGETABLE, > NR_KERNEL_STACK and NR_BOUNCE are all allocations that potentially pin > low memory and cannot trivially be reclaimed on demand. This information > is still useful for debugging a page allocation failure warning. > > Signed-off-by: Mel Gorman Acked-by: Vlastimil Babka