linux-kernel - Re: [RFT][PATCH] mm: drop behind

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Message-ID: <eada2a070707111537p20ab429anebd8b1840f5e5b5f@mail.gmail.com>
Date:	Wed, 11 Jul 2007 15:37:17 -0700
From:	"Tim Pepper" <lnxninja@...ibm.com>
To:	"Peter Zijlstra" <peterz@...radead.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	"Fengguang Wu" <wfg@...l.ustc.edu.cn>, riel <riel@...hat.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Rusty Russell" <rusty@...tcorp.com.au>
Subject: Re: [RFT][PATCH] mm: drop behind

On 7/9/07, Peter Zijlstra <peterz@...radead.org> wrote:
> Use the read-ahead code to provide hints to page reclaim.
>
> This patch has the potential to solve the streaming-IO trashes my
> desktop problem.
>
> It tries to aggressively reclaim pages that were loaded in a strong
> sequential pattern and have been consumed. Thereby limiting the damage
> to the current resident set.

Interesting...

Would it make sense to tie this into (finally) making
POSIX_FADV_NOREUSE something more than a noop?


Tim
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