Re: [PATCH] Re: kswapd

[Rik van Riel <riel@conectiva.com.br>]

On Sun, 26 Mar 2000, Kanoj Sarcar wrote:
> > On Sun, 26 Mar 2000, Russell King wrote:
> > 
> > > I think I've solved (very dirtily) my kswapd problem
> > 
> > Your patch is the correct one. I've added an extra reschedule
> > point and cleaned up the code a little bit. I wonder who sent
> > the brown-paper-bag patch with the superfluous while loop to
> > Linus ...        (please raise your hand and/or buy rmk a beer)
> 
> That would be me ...
> 
> What is the problem that your patch is fixing?

Removing the superfluous while loop.

Without my patch kswapd uses between 50 and 70% CPU time
in a particular workload. Now it uses between 3 and 5%.
Oh, and the latency problem probably has been fixed too...

cheers,

Rik
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