Mailinglist Archive: opensuse-amd64 (380 mails)
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Re: [suse-amd64] Curious behavior with KSWAPD
- From: Andi Kleen <ak@xxxxxxx>
- Date: Sat, 7 Feb 2004 02:26:06 +0000 (UTC)
- Message-id: <20040207031933.28e7350a.ak@xxxxxxx>
On Fri, 6 Feb 2004 16:40:05 -0900
"Bedard, Joe" <Joe.Bedard@xxxxxxxxxxxx> wrote:
> Greetings:
>
> Kswapd on my SLES 8 whipsaws one of my CPU's to 99.9% for prolonged
> periods of time during high I/O.
> While this activity is happening, performance and interactive response
> time goes by way of the swamp.
Can you do a kernel profile and post the results?
Boot with profile=1
(before triggering the problem)
readprofile -r
(afterwards)
readprofile -m /boot/System.map | sort -n
Also could you test if it goes away when you boot with numa=off ?
-Andi
"Bedard, Joe" <Joe.Bedard@xxxxxxxxxxxx> wrote:
> Greetings:
>
> Kswapd on my SLES 8 whipsaws one of my CPU's to 99.9% for prolonged
> periods of time during high I/O.
> While this activity is happening, performance and interactive response
> time goes by way of the swamp.
Can you do a kernel profile and post the results?
Boot with profile=1
(before triggering the problem)
readprofile -r
(afterwards)
readprofile -m /boot/System.map | sort -n
Also could you test if it goes away when you boot with numa=off ?
-Andi
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