WMI Sensors grossly under reporting RAM and CPU usage

Modified on 2025-06-10 21:00:09 +0200

I am trying to monitor a primarily virtual network, with about 15+ VM's. After getting complaints that the system was going slow, I checked PRTG.

The CPU sensors reported roughly 10%, yet on the server the usage was well over 98% Same with the memory sensor, 2gb available while the server had over 20gb

Why are the sensors to inaccurate?

Article Comments

Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

Dear kadeh,

measuring VM metrics depends on the method used, as a VM can be evaluated in different ways. Which sensor types exactly are you using to measure CPU load and memory usage?

Nov, 2017 - Permalink

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.

WMI Sensors grossly under reporting RAM and CPU usage

Article CommentsAttention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

Search

Attention

Related Articles

Article Comments

Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.