Huge increase in multi-user server load after recent Lucid updates

john lists.john at gmail.com
Fri Feb 4 20:39:23 UTC 2011


Hi Jorge,

Did you ever resolve this? I have been seing higher than normal CPU
and Memory use on Ubuntu 10.04 running
2.6.32-27-generic #49-Ubuntu on AMD64

I have 16gigs of ram and I am swapping with a mere 19 users and local apps

top - 12:38:37 up 4 days,  4:04, 21 users,  load average: 0.52, 0.40, 0.45
Tasks: 2815 total,   1 running, 2814 sleeping,   0 stopped,   0 zombie
Cpu0  :  7.8%us,  1.9%sy,  0.0%ni, 89.7%id,  0.0%wa,  0.0%hi,  0.6%si,  0.0%st
Cpu1  :  1.9%us,  2.2%sy,  0.0%ni, 93.9%id,  1.6%wa,  0.0%hi,  0.3%si,  0.0%st
Cpu2  :  0.3%us,  0.3%sy,  0.0%ni, 98.8%id,  0.6%wa,  0.0%hi,  0.0%si,  0.0%st
Cpu3  :  0.9%us,  2.8%sy,  0.0%ni, 96.2%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  16536276k total, 15808472k used,   727804k free,   601892k buffers
Swap: 19803128k total,    32112k used, 19771016k free,  9263792k cached


John


2011/1/22 Jorge E. Gómez <jorge at jorgee.net>:
> I applied the recent (jan. 20) batch of Lucid updates (22 packages),
> and am suddenly  seeing a spike in cpu and server load (around 15,
> when it was closer to 1 or 2) for our server.
> Top doesn't show any unusual processes taking all the cpu, but regular
> apps like evolution and firefox now claim 10-30% regularly.
>
> Updated kernel is 2.6.32-27-generic-pae.
> Other possible culprits are updated versions of: dbus, xserver-common
>
> Any hints about what could be going on?
>
> --
> Jorge E. Gómez
> http://jorgee.net
>
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