CPU usage is not accurate on a per process basis.

[Ben Kietzman]

Chris Weaver from AT&T reported that the CPU usage was not accurate on a per process basis. The alarms being triggered on a server level were not matching what he was viewing in the system.

[Ben Kietzman (ben-kietzman)]

Here is the existing logic used to fetch the CPU usage on a per process basis:

ps -e -o pcpu,comm | grep -v 'CPU' | grep -v 'migration/' | grep -v '-'

[Ben Kietzman (ben-kietzman)]

Chris Weaver from AT&T provided the following command to use as a replacement:

top -b -n 1 | sed -n '8,$p'| awk '{print $9, $12}'

This command has been implemented and confirmed as being more accurate.