Re: UNS: who/what uses my CPU?

Steffan Davies wrote:
From "man top":

wa -- iowait
Amount of time the CPU has been waiting for I/O to complete.
Ups, I've checked the man pages but I guess I missed this line.
Something is doing lots of IO (probably disk IO). Have a look at the output of iostat (part of the sysstat package) to find out a little more about what sort of activity is going on.
This usually happens after NFS connection crash. So far I repaired it by rebooting, but next time I will try what you suggested.

Thanks!

Regards,
Mitja
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