Weird system cpu usage

[Oliver Fromme]

Charlie Root <root at ha-web1.hockeyarena.net> wrote:
 > [...]

It's preferable to send mail as a real user, not as root,
for various reasons.

 > I have to report, that I have a very strange cpu usage by system (as
 > the `top' reports).

You haven't mentioned what exactly you think is strange
in your top(1) output.  I think it looks pretty normal
under the given circumstances.

 > root@[ha-web1 ~]# vmstat -i
 > interrupt                          total       rate
 > irq1: atkbd0                          12          0
 > irq16: ohci0                           1          0
 > irq17: ohci1 ohci3                     1          0
 > irq18: ohci2 ohci4                     1          0
 > irq20: em0                      86255835       1361
 > irq22: em1 atapci0           18611379049     293795

Now that looks unusual indeed.  Do you get that rate
on irq22 right after boot, before the services have
started?  It looks like either hardware or driver
problems.  Do you have polling enabled on em1?

Best regards
   Oliver

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