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

[Con Kolivas]

Mikhail Ramendik wrote:
> Andrew Morton wrote:
>
>
> > - Ask Voluspa to do
> >
> > 	echo 0 > /proc/sys/vm/swap_token_timeout
> >
> >  on 2.6.10-rc3 and retest.
>
>
> He did, and I did (but I have not sent my report to lkml). In both cases, 
> screen freezes remained but were now less in duration (up to 10-20 sec). In 
> mu case I also monitored CPU loading and the big load peaks were there (the 
> biggest one was in the beginning).
>
>
> > (We still don't know why it chews tons of CPU, do we?)
>
>
> It does! Any way to dig into this?

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?

Con

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