Nagios Support Forum

Hi,

I have set up some tests to read CPU percentages with SNMP.

Now the values in the performance data, are different then the values in the graph.

For example, the event log says:

2021-04-21 08:40:29 SERVICE ALERT: hostnameremoved;CPU Usage;CRITICAL;SOFT;1;SNMP CRITICAL - CPU usage *96* percent

The graph says 61.383 percent at the same time as the event log, there is also no spike to 96 percent within the graph.



Can you explain why?

Thank you.

The RRDs average the data, see here for a good explanation:

https://support.nagios.com/kb/article/n ... g-768.html

The graphs is showing the averaged data.

Development intends to move away from RRDs in a future XI release.