linux-ext4 - Re: [PATCH 3/3] mm: slub: Default slub_max

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Message-ID: <alpine.DEB.2.00.1105121302240.28493@router.home>
Date:	Thu, 12 May 2011 13:03:05 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Andrea Arcangeli <aarcange@...hat.com>
cc:	Pekka Enberg <penberg@...nel.org>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Dave Jones <davej@...hat.com>, Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Colin King <colin.king@...onical.com>,
	Raghavendra D Prabhu <raghu.prabhu13@...il.com>,
	Jan Kara <jack@...e.cz>, Chris Mason <chris.mason@...cle.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH 3/3] mm: slub: Default slub_max_order to 0

On Thu, 12 May 2011, Andrea Arcangeli wrote:

> even order 3 is causing troubles (which doesn't immediately make lumpy
> activated, it only activates when priority is < DEF_PRIORITY-2, so
> after 2 loops failing to reclaim nr_to_reclaim pages), imagine what

That is a significant change for SLUB with the merge of the compaction
code.
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