From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
To: Jiang Liu <liuj97@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Jiang Liu <jiang.liu@huawei.com>,
David Rientjes <rientjes@google.com>,
Wen Congyang <wency@cn.fujitsu.com>, Mel Gorman <mgorman@suse.de>,
Minchan Kim <minchan@kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Michal Hocko <mhocko@suse.cz>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
David Howells <dhowells@redhat.com>,
Mark Salter <msalter@redhat.com>,
Jianguo Wu <wujianguo@huawei.com>,
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
Date: Sun, 12 May 2013 00:05:51 +0400 [thread overview]
Message-ID: <518EA49F.50206@cogentembedded.com> (raw)
In-Reply-To: <1368293689-16410-16-git-send-email-jiang.liu@huawei.com>
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/
> 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 <jiang.liu@huawei.com>
> Reported-by: sworddragon2@aol.com
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Mel Gorman <mgorman@suse.de>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: linux-mm@kvack.org
> Cc: linux-kernel@vger.kernel.org
WBR, Sergei
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next prev parent reply other threads:[~2013-05-11 20:05 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-11 17:34 [PATCH v6, part3 00/16] accurately calculate memory statisitic information Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 01/16] mm: change signature of free_reserved_area() to fix building warnings Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 02/16] mm: enhance free_reserved_area() to support poisoning memory with zero Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 03/16] mm/ARM64: kill poison_init_mem() Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 04/16] mm/x86: use free_reserved_area() to simplify code Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 05/16] mm/tile: use common help functions to free reserved pages Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 06/16] mm, powertv: use free_reserved_area() to simplify code Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 07/16] mm, acornfb: " Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 08/16] mm: fix some trivial typos in comments Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 09/16] mm: use managed_pages to calculate default zonelist order Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 10/16] mm: accurately calculate zone->managed_pages for highmem zones Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 11/16] mm: use a dedicated lock to protect totalram_pages and zone->managed_pages Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 12/16] mm: make __free_pages_bootmem() only available at boot time Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 13/16] mm: correctly update zone->mamaged_pages Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 14/16] mm: concentrate modification of totalram_pages into the mm core Jiang Liu
2013-05-11 17:34 ` [PATCH v6, part3 15/16] mm: report available pages as "MemTotal" for each NUMA node Jiang Liu
2013-05-11 20:05 ` Sergei Shtylyov [this message]
2013-05-12 15:13 ` Liu Jiang
2013-05-11 17:34 ` [PATCH v6, part3 16/16] AVR32: fix building warnings caused by redifinitions of HZ Jiang Liu
2013-05-13 9:19 ` [PATCH v6, part3 14/16] mm: concentrate modification of totalram_pages into the mm core David Howells
2013-05-13 9:40 ` [PATCH v6, part3 16/16] AVR32: fix building warnings caused by redifinitions of HZ David Howells
2013-05-17 15:28 ` Liu Jiang
2013-05-13 9:41 ` [PATCH v6, part3 02/16] mm: enhance free_reserved_area() to support poisoning memory with zero David Howells
2013-05-13 9:42 ` David Howells
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