Re: [PATCH] mm: swap prefetch improvements

From: Ingo Molnar
Date: Tue May 22 2007 - 06:58:17 EST



* Con Kolivas <kernel@xxxxxxxxxxx> 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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