From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754110Ab3ELPNv (ORCPT ); Sun, 12 May 2013 11:13:51 -0400 Received: from mail-pa0-f42.google.com ([209.85.220.42]:56503 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753555Ab3ELPNt (ORCPT ); Sun, 12 May 2013 11:13:49 -0400 Message-ID: <518FB1A5.8050303@gmail.com> Date: Sun, 12 May 2013 23:13:41 +0800 From: Liu Jiang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130404 Thunderbird/17.0.5 MIME-Version: 1.0 To: Sergei Shtylyov CC: Andrew Morton , Jiang Liu , David Rientjes , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , James Bottomley , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6, part3 15/16] mm: report available pages as "MemTotal" for each NUMA node References: <1368293689-16410-1-git-send-email-jiang.liu@huawei.com> <1368293689-16410-16-git-send-email-jiang.liu@huawei.com> <518EA49F.50206@cogentembedded.com> In-Reply-To: <518EA49F.50206@cogentembedded.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun 12 May 2013 04:05:51 AM CST, Sergei Shtylyov wrote: > Hello. > > On 05/11/2013 09:34 PM, Jiang Liu wrote: > > I've noticed a small typo in the changelog. > >> As reported by https://bugzilla.kernel.org/show_bug.cgi?id=53501, >> "MemTotal" from /proc/meminfo means memory pages managed by the buddy >> system (managed_pages), but "MemTotal" from /sys/.../node/nodex/meminfo >> means phsical pages present (present_pages) within the NUMA node. > > s/phsical/physical/ Thanks Sergei, will fix it in next version. Gerry > >> There's a difference between managed_pages and present_pages due to >> bootmem allocator and reserved pages. >> >> And Documentation/filesystems/proc.txt says >> MemTotal: Total usable ram (i.e. physical ram minus a few reserved >> bits and the kernel binary code) >> >> So change /sys/.../node/nodex/meminfo to report available pages within >> the node as "MemTotal". >> >> Signed-off-by: Jiang Liu >> Reported-by: sworddragon2@aol.com >> Cc: Andrew Morton >> Cc: Mel Gorman >> Cc: Minchan Kim >> Cc: linux-mm@kvack.org >> Cc: linux-kernel@vger.kernel.org > > WBR, Sergei > From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liu Jiang Subject: Re: [PATCH v6, part3 15/16] mm: report available pages as "MemTotal" for each NUMA node Date: Sun, 12 May 2013 23:13:41 +0800 Message-ID: <518FB1A5.8050303@gmail.com> References: <1368293689-16410-1-git-send-email-jiang.liu@huawei.com> <1368293689-16410-16-git-send-email-jiang.liu@huawei.com> <518EA49F.50206@cogentembedded.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <518EA49F.50206@cogentembedded.com> Sender: owner-linux-mm@kvack.org To: Sergei Shtylyov Cc: Andrew Morton , Jiang Liu , David Rientjes , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , James Bottomley , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-arch.vger.kernel.org On Sun 12 May 2013 04:05:51 AM CST, Sergei Shtylyov wrote: > Hello. > > On 05/11/2013 09:34 PM, Jiang Liu wrote: > > I've noticed a small typo in the changelog. > >> As reported by https://bugzilla.kernel.org/show_bug.cgi?id=53501, >> "MemTotal" from /proc/meminfo means memory pages managed by the buddy >> system (managed_pages), but "MemTotal" from /sys/.../node/nodex/meminfo >> means phsical pages present (present_pages) within the NUMA node. > > s/phsical/physical/ Thanks Sergei, will fix it in next version. Gerry > >> There's a difference between managed_pages and present_pages due to >> bootmem allocator and reserved pages. >> >> And Documentation/filesystems/proc.txt says >> MemTotal: Total usable ram (i.e. physical ram minus a few reserved >> bits and the kernel binary code) >> >> So change /sys/.../node/nodex/meminfo to report available pages within >> the node as "MemTotal". >> >> Signed-off-by: Jiang Liu >> Reported-by: sworddragon2@aol.com >> Cc: Andrew Morton >> Cc: Mel Gorman >> Cc: Minchan Kim >> Cc: linux-mm@kvack.org >> Cc: linux-kernel@vger.kernel.org > > WBR, Sergei > -- 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