Suse 11SP1 running as guest on zVM 5.4
Linux guest has 4 virtual processors.

From zVM Performance Toolkit FCX112-User Resource Usage Screen, we can find
a linux guest's %CPU is 55.2.
Based on description, this value is percent of total used by this guest.

At the same time, I logon this linux with root user and issue "top"
command. I found:
Cpu(s): 0.8%us, 5.9%sy, 0.0%ni, 80.7%id, 6.7%wa, 0.3%hi, 4.1%si, 1.4%st

We know that linux cpu usage mainly include user cpu and sys cpu. But why
performance toolkit value cannot corresponding with top command value?

What's mean 55.2 %CPU on Performance Toolkit?
Why it is not equal to %us + %sy




Best Regards!

Gao Lu (高路)
I/T Specialist
Global Technology Services
IBM Global Services (China) Company Limited.
Address:18/F, Pangu Plaza, No.27, Central North 4th Ring Road, Chaoyang
District, Beijing, 100101
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