linux-kernel - Re: [PATCH 46/63] mm: numa: Do not group on RO pages

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Message-ID: <5253073C.7010205@redhat.com>
Date:	Mon, 07 Oct 2013 15:10:52 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Mel Gorman <mgorman@...e.de>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...nel.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 46/63] mm: numa: Do not group on RO pages

On 10/07/2013 06:29 AM, Mel Gorman wrote:
> From: Peter Zijlstra <peterz@...radead.org>
> 
> And here's a little something to make sure not the whole world ends up
> in a single group.
> 
> As while we don't migrate shared executable pages, we do scan/fault on
> them. And since everybody links to libc, everybody ends up in the same
> group.
> 
> [riel@...hat.com: mapcount 1]
> Suggested-by: Rik van Riel <riel@...hat.com>
> Signed-off-by: Peter Zijlstra <peterz@...radead.org>
> Signed-off-by: Mel Gorman <mgorman@...e.de>

Reviewed-by: Rik van Riel <riel@...hat.com>


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