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Meaning of "%Total CPU" and "%Busy CPU" in AWR

User_A7RKTJun 8 2019 — edited Jun 9 2019

Hi guys,

Following is an excerpt from an AWR  report.

My questions are:

(1) What is the "%Total CPU" under  the Instance CPU?

Obviously it isn't how much CPU is consumed by the instance because the "%User" is 10.7% and there is no way for the Instance CPU consumption to be more than %User.

(2) What is the "%Busy CPU"? How come it is more than 100?

Host CPU

CPUsCoresSocketsLoad Average BeginLoad Average End%User%System%WIO%Idle
2210.301.2310.75.65.377.7

Instance CPU

%Total CPU%Busy CPU%DB time waiting for CPU (Resource Manager)
29.8133.80.0

It's Oracle 12c R2 on Linux x86-64.

This post has been answered by Jonathan Lewis on Jun 9 2019
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Added on Jun 8 2019
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