Re: KSWAPD Algorithm - 100% CPU

From: KAMEZAWA Hiroyuki
Date: Wed Dec 03 2008 - 02:21:30 EST

On Wed, 3 Dec 2008 09:04:49 +0200
"wassim dagash" <wassim.dagash@xxxxxxxxx> wrote:

> Hi All,
> Description:
> I countered a weird problem with kswapd:
> it runs in some infinite loop trying to swap until order 10 of zone
> highmem is OK, While zone higmem (as I understand) has nothing to do
> with contiguous memory (cause there is no 1-1 mapping) which means
> kswapd will continue to try to balance order 10 of zone highmem
> forever (or until someone release a very large chunk of highmem).
> Can anyone please explain me the algorithm of kswapd and why it tries
> to balance order 10 of zone higmem ?
At first, what version of the kernel ?


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