What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

CPU monitoring mechanism




I set the monitoring CPU sensor scanning internal for 2 minutes. But I found that the sensor sometimes will take reading in 1 minute internal. It is sometimes happened when the alert limit hit for the CPU sensor, but sometimes not.

Would anyone can help to explain the mechanism/policy of CPU sensor? Thanks a lot.


cpu internal sensor

Created on Feb 17, 2016 9:28:30 AM

2 Replies



Hi Daniel,

PRTG will directly schedule another scanning attempt if the first scan fails. This re-scan will not be performed if the sensor goes down if a limit was passed.

Next to this, the scans should be performed closely after the scanning interval.

Best regards, Felix

Created on Feb 18, 2016 2:05:12 PM by  Felix Saure [Paessler Support]



Thanks Felix.

Created on Feb 20, 2016 4:31:04 AM

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.