Re: page_launder() on 2.4.9/10 issue

From: David S. Miller (davem@redhat.com)
Date: Tue Aug 28 2001 - 15:01:10 EST

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   From: Andi Kleen <ak@suse.de>
   Date: 28 Aug 2001 21:14:15 +0200

   At least something seems to be broken in it. I did run some 900MB processes
   on a 512MB machine with 2.4.9 and kswapd took between 70 and 90% of the CPU
   time.

That's all swapmap lookup stupidity, you'll see __get_swap_page()
near the top of your profiles. The algorithm is just sucky.

Later,
David S. Miller
davem@redhat.com
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