This article applies as of PRTG 22
Recommended operating system: Windows Server 2012 R2 or later
As you can see in the
supported operating systems of the system requirements for PRTG, we recommend that you use at least Windows Server 2012 R2 on the probe system (either local or remote probe). Windows Server 2012 R2 provides the best performance for various sensor types.
This recommendation especially holds for all sensors that execute HTTP web requests via a script. We found out that the performance of these sensors is better by a factor around 10 as of Windows Server 2012 R2 compared to Windows Server 2008 R2.
For example, this affects all VMware sensors using the Simple Object Access Protocol (SOAP): the VMware Datastore (SOAP) sensor, the VMware Host Hardware Status (SOAP) sensor, the VMware Host Performance (SOAP) sensor, and the VMware Virtual Machine (SOAP) sensor.
You can monitor
- up to 300 VMware sensors with a 60-second scanning interval if your PRTG core server (or remote probe) runs on at least Windows Server 2012 R2,
- but only 30 VMware sensors with a 60-second scanning interval if your PRTG core server (or remote probe) runs on Windows Server 2008 R2.
For details about the performance of VMware sensors, see How can I increase the connection limit on VMware systems? PE121.
Other sensors that show an increase in performance by a factor of 10 are, for example,
Also keep this performance improvement in mind when creating your own custom sensors, for example, an EXE/Script sensor, and when your custom script performs such a request.
If possible, set up the PRTG core server and/or remote probes on at least Windows Server 2012 R2 if you frequently use the mentioned sensors.