Mailinglist Archive: opensuse-amd64 (299 mails)
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RE: [suse-amd64] Instable kswapd / kernel oopses
- From: "Bedard, Joe" <Joe.Bedard@xxxxxxxxxxxx>
- Date: Mon, 12 Jan 2004 19:30:55 +0000 (UTC)
- Message-id: <0E8DCC1D8AA0FD40BC9BFADE036E0F1C1D6E@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
-----Original Message-----
From: Kees Hoekzema [mailto:kees@xxxxxxxxxxxx]
Sent: Monday, January 12, 2004 7:58 AM
To: suse-amd64@xxxxxxxx
Subject: [suse-amd64] Instable kswapd / kernel oopses
>A kinda nasty piece of work from.. kspwad!
>What is wrong with kswapd? it crashes our server if we use 6G and slows
down
>our server to a crawl when using 4G (kernel option mem=4g).
I am not seeing any crash problems with our AMD64 SLES servers but we
are see very high, sustained kswapd CPU utilization and heavy swapping
anytime there is disk I/O of any decent size. It causes the system to
choke for a while, sometimes lasting about 30 seconds. I found that
turning off the swap partitions (swapoff -a) relives the situation
somewhat. (kswapd only hammers one of the CPU's for about 5 to 15
seconds intermittently during disk I/O)
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