Re: [PATCH] mm: swap prefetch improvements

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* Con Kolivas <[email protected]> wrote:

> > > there was nothing else running on the system - so i suspect the 
> > > swapin activity flagged 'itself' as some 'other' activity and 
> > > stopped? The swapins happened in 4 bursts, separated by 5 seconds 
> > > total idleness.
> >
> > I've noted burst swapins separated by some seconds of pause in my 
> > desktop system too (with sp_tester and an idle gnome).
> 
> That really is expected, as just about anything, including journal 
> writeout, would be enough to put it back to sleep for 5 more seconds. 

note that nothing like that happened on my system - in the 
swap-prefetch-off case there was _zero_ IO activity during the sleep 
period.

	Ingo
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