linux-kernel - Re: [patch] mm, compaction: ignore pageblock skip when manually invoking compaction

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Message-ID: <20140124111822.GS4963@suse.de>
Date:	Fri, 24 Jan 2014 11:18:22 +0000
From:	Mel Gorman <mgorman@...e.de>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] mm, compaction: ignore pageblock skip when manually
 invoking compaction

On Wed, Jan 22, 2014 at 09:56:31PM -0800, David Rientjes wrote:
> The cached pageblock hint should be ignored when triggering compaction
> through /proc/sys/vm/compact_memory so all eligible memory is isolated.  
> Manually invoking compaction is known to be expensive, there's no need to
> skip pageblocks based on heuristics (mainly for debugging).
> 
> Signed-off-by: David Rientjes <rientjes@...gle.com>

Acked-by: Mel Gorman <mgorman@...e.de>

-- 
Mel Gorman
SUSE Labs
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