How does SystemEDGE calculate total CPU utilization on AIX?

Products

• CA Systems Performance for IM (SystemEdge)

Issue/Introduction

I need to better understand what command SystemEDGE is using the calculate total CPU utilization on AIX.

Environment

Release : SystemEDGE 5.9 on AIX

Resolution

• SystemEDGE Total IDLE percent <1.3.6.1.4.1.546.13.7.0> should closely match the output of lparstat 120 1
• lparstat 120 1 is the calculated average %idle value over a 120 second time frame.

The lparstat command with no options will generate a single report containing utilization statistics related to the LPAR since boot time.  This output is not useful for any comparison of data provided by SystemEDGE nor for the reflection of current actual CPU usage.