From: Mel Gorman <mel@csn.ul.ie>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] mm,vmscan: Reclaim order-0 and compact instead of lumpy reclaim when under light pressure
Date: Fri, 12 Nov 2010 09:37:43 +0000 [thread overview]
Message-ID: <20101112093742.GA3537@csn.ul.ie> (raw)
In-Reply-To: <1289502424-12661-4-git-send-email-mel@csn.ul.ie>
On Thu, Nov 11, 2010 at 07:07:04PM +0000, Mel Gorman wrote:
> + if (COMPACTION_BUILD)
> + sc->lumpy_reclaim_mode = LUMPY_MODE_COMPACTION;
> + else
> + sc->lumpy_reclaim_mode = LUMPY_MODE_CONTIGRECLAIM;
>
Gack, I posted the slightly wrong version. This version prevents lumpy
reclaim ever being used. The figures I posted were for a patch where
this condition looked like
if (COMPACTION_BUILD && priority > DEF_PRIORITY - 2)
sc->lumpy_reclaim_mode = LUMPY_MODE_COMPACTION;
else
sc->lumpy_reclaim_mode = LUMPY_MODE_CONTIGRECLAIM;
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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next prev parent reply other threads:[~2010-11-12 9:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-11 19:07 [RFC PATCH 0/3] Use compaction to reduce a dependency on lumpy reclaim Mel Gorman
2010-11-11 19:07 ` [PATCH 1/3] mm,vmscan: Convert lumpy_mode into a bitmask Mel Gorman
2010-11-14 5:40 ` KOSAKI Motohiro
2010-11-15 9:16 ` Mel Gorman
2010-11-11 19:07 ` [PATCH 2/3] mm,compaction: Add COMPACTION_BUILD Mel Gorman
2010-11-14 5:45 ` KOSAKI Motohiro
2010-11-15 9:26 ` Mel Gorman
2010-11-11 19:07 ` [PATCH 3/3] mm,vmscan: Reclaim order-0 and compact instead of lumpy reclaim when under light pressure Mel Gorman
2010-11-12 9:37 ` Mel Gorman [this message]
2010-11-14 5:43 ` KOSAKI Motohiro
2010-11-15 9:17 ` Mel Gorman
2010-11-14 6:02 ` KOSAKI Motohiro
2010-11-15 9:22 ` Mel Gorman
2010-11-15 15:23 ` Andrea Arcangeli
2010-11-14 5:59 ` KOSAKI Motohiro
2010-11-15 9:25 ` Mel Gorman
2010-11-14 5:31 ` [RFC PATCH 0/3] Use compaction to reduce a dependency on lumpy reclaim KOSAKI Motohiro
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