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Message-ID: <20070522105710.GA12833@elte.hu>
Date: Tue, 22 May 2007 12:57:10 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Con Kolivas <kernel@...ivas.org>
Cc: Antonino Ingargiola <tritemio@...il.com>,
Nick Piggin <nickpiggin@...oo.com.au>,
Ray Lee <ray-lk@...rabbit.org>, ck list <ck@....kolivas.org>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] mm: swap prefetch improvements
* Con Kolivas <kernel@...ivas.org> wrote:
> On Tuesday 22 May 2007 20:46, Ingo Molnar wrote:
> > It clearly should not consider 'itself' as IO activity. This
> > suggests some bug in the 'detect activity' mechanism, agreed? I'm
> > wondering whether you are seeing the same problem, or is all
> > swap-prefetch IO on your system continuous until it's done [or some
> > other IO comes inbetween]?
>
> When nothing else is happening anywhere on the system it reads in
> bursts and goes to sleep during journal writeout.
hm, what do you call 'journal writeout' here that would be happening on
my system?
Ingo
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