Re: 2.6.10-rc3: kswapd eats CPU on start of memory-eating task

[Con Kolivas]

Rik van Riel wrote:
> On Mon, 20 Dec 2004, Con Kolivas wrote:
>
> > I still suspect the thrash token patch even with the swap token 
> > timeout at 0. Is it completely disabled at 0 or does it still do 
> > something?
>
>
> It makes it harder to page out pages from the task holding the
> token.  I wonder if kswapd should try to steal the token away
> from the task holding it, so in effect nobody holds the token
> when the system isn't under a heavy swapping load.

What if the token isn't handed out at all until a heavy swapping load 
starts? A slight delay in thrash control would be worth it.

Con

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