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Date: Wed, 24 Mar 2010 09:19:16 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH 09/11] Add /sys trigger for per-node memory compaction
Message-Id: <20100324091916.46655cf0.kamezawa.hiroyu@jp.fujitsu.com>
In-Reply-To: <1269347146-7461-10-git-send-email-mel@csn.ul.ie>
References: <1269347146-7461-1-git-send-email-mel@csn.ul.ie>
	<1269347146-7461-10-git-send-email-mel@csn.ul.ie>
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Sender: owner-linux-mm@kvack.org
To: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>, Andrea Arcangeli <aarcange@redhat.com>, Christoph Lameter <cl@linux-foundation.org>, Adam Litke <agl@us.ibm.com>, Avi Kivity <avi@redhat.com>, David Rientjes <rientjes@google.com>, Minchan Kim <minchan.kim@gmail.com>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Rik van Riel <riel@redhat.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org
List-ID: <linux-mm.kvack.org>

On Tue, 23 Mar 2010 12:25:44 +0000
Mel Gorman <mel@csn.ul.ie> wrote:

> This patch adds a per-node sysfs file called compact. When the file is
> written to, each zone in that node is compacted. The intention that this
> would be used by something like a job scheduler in a batch system before
> a job starts so that the job can allocate the maximum number of
> hugepages without significant start-up cost.
> 
> Signed-off-by: Mel Gorman <mel@csn.ul.ie>
> Acked-by: Rik van Riel <riel@redhat.com>
> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>



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