CPU load is measured accurately?

[cabryk]

Hello,
I would like to ask how is obtained value of the CPU load.
I tried "challenging task" for the CPU and I received values ​​less than ten percent. CPU performance on the monitored machine was over 60 percent. The duration was over 10 minutes. This would exclude average of measuring values.
Thank you for answer

[rkennedy]

What plugin are you using to check the CPU? It will really vary based on this.

Some aggregate an average between all CPU's, while some report on each core. We'll need a bit of information, as well as the data from your testing as this will help to visualize what you're noticing.

[cabryk]

Plugin is

Code: Select all

/usr/local/nagios/libexec/check_nt -H 192.168.1.12 -p 12489  -v CPULOAD -l 5,80,90')

5 min average
Monitored machine have 4 logical processors

[tgriep]

The check_nt command is polling the NSClient++ agent that is install on your Windows server.
If you are using a older version of the NSCLient++ try upgrading it to at lease the latest stable 0.4.x version and see if that fixes the issue.
You can get the NSClient++ from www.nsclient.org