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Re: [PATCH] kswapd performance fix

To: Rik van Riel <riel@nl.linux.org>
Subject: Re: [PATCH] kswapd performance fix
From: "Stephen C. Tweedie" <sct@redhat.com>
Date: Fri, 25 Feb 2000 10:26:34 +0000 (GMT)
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Linux MM <linux-mm@kvack.org>, "Stephen Tweedie <sct@redhat.com> Linux Kernel" <linux-kernel@vger.rutgers.edu>
In-Reply-To: <Pine.LNX.4.10.10002250026040.1385-100000@mirkwood.dummy.home>
References: <Pine.LNX.4.10.10002250026040.1385-100000@mirkwood.dummy.home>
Sender: owner-linux-mm@kvack.org

Hi,

On Fri, 25 Feb 2000 00:30:59 +0100 (CET), Rik van Riel
<riel@nl.linux.org> said:

> The patch should apply to any 2.2 or 2.3 kernel, but for
> 2.3 it'll have the interesting side effect of nullifying
> the (minimal) page aging that's going on there.

Have you actually tested the impact of this under a variety of load
conditions?  In the past we have seen such apparently trivial changes
completely break the VM balance under certain loads.

--Stephen
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References:
- [PATCH] kswapd performance fix
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- [PATCH] kswapd performance fix
  - From: Rik van Riel <riel@nl.linux.org>

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