Re: PATCH: Improvements in shrink_mmap and kswapd

From: Mike Galbraith (
Date: Sun Jun 18 2000 - 02:57:13 EST

On 18 Jun 2000, Juan J. Quintela wrote:

> Hi
> this patch makes kswapd use less resources. It should solve
> the kswapd eats xx% of my CPU problems. It appears that it improves
> IO a bit here. Could people having problems with IO told me if this
> patch improves things, I am interested in knowing that it don't makes
> things worst never. This patch is stable here. I am finishing the
> deferred mmaped pages form file writing patch, that should solve
> several other problems.
> Reports of success/failure are welcome. Comments are also welcome.

Hi Juan,

I added this patch to ac20 + Roger Larsonn fix and gave it a quick burn.
I saw a slight performance drop in both make -j30 build times and streaming
IO (iozone). I didn't do sustained pounding though (consistancy), so...


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