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Date: Tue, 12 May 2009 18:02:21 -0400 (EDT)
From: Christoph Lameter <cl@linux-foundation.org>
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To: Rik van Riel <riel@redhat.com>
cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
       Wu Fengguang <fengguang.wu@intel.com>,
       Andrew Morton <akpm@linux-foundation.org>,
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Subject: Re: [PATCH -mm] vmscan: protect a fraction of file backed mapped
 pages from reclaim
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On Tue, 12 May 2009, Rik van Riel wrote:

> > Streaming I/O means access once?
>
> Yeah, "used-once pages" would be a better criteria, since
> you could go through a gigantic set of used-once pages without
> doing linear IO.

Can we see some load for which this patch has a beneficial effect?
With some numbers?