linux-kernel - Re: [PATCH] mm: vmscan: no change of reclaim mode if unevictable page encountered

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Message-ID: <CAJd=RBAMn0Zi49iukLfV1S3je08OCqFv3nu=CZG1WTNyom7nig@mail.gmail.com>
Date:	Wed, 11 Jan 2012 20:14:52 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Mel Gorman <mgorman@...e.de>
Cc:	linux-mm@...ck.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	David Rientjes <rientjes@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: vmscan: no change of reclaim mode if unevictable page encountered

On Wed, Jan 11, 2012 at 12:57 AM, Mel Gorman <mgorman@...e.de> wrote:
>
> When I said it needed more justification, I meant that you need to show
> a workload or usecase that suffers as a result of reset_reclaim_mode
> being called here. I explained already that the reset errs on the
> side of caution by making reclaim work less.
>
> You need to describe what problem your workload is suffering from and
> why this patch fixes it.
>
Got and thanks for review /Hillf
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