CPU load incorrect

[Halloween_BE]

Hello,I'm using Zabbix 4.4.10 to collect CPU load on a Windows 2019 server running HyperV.
I have a VM using all 40 CPUs from my server quite a lot.
Windows shows a CPU utilization between 70% and 90% all the time but Zabbix agent is only saying less than 1%... why ?
Thanks for your help.

[Atsushi]

CPU ulilization and load average are different things. If you want to see the same value as the CPU Utilization in Task Manager, create an item using system.cpu.util[] and compare.

https://www.zabbix.com/documentation/4.4/manual/config/items/itemtypes/zabbix_agent

[Halloween_BE]

Sorry you are right I copy the wrong picture... it's Cpu usage that is around 1% all the time

[Atsushi]

How do you set it as the item key? If you used system.cpu.util[] on Windows, you only know the system utilization.
For overall system load, you need to get a value from a performance counter.

ex.
perf_counter[\Processor(_Total)\%Processor Time]

[Halloween_BE]

Hello, I'm using the template for Windows OS.
The key is : system.cpu.util[all,system,avg1]
Regards

[Atsushi]

When "system.cpu.util[all,system,avg1]" is specified as the item key, it is mainly the processing part of the OS in the CPU utilisation. Since the CPU usage used by the application is not included, the CPU utilisation of the entire system cannot be obtained.

https://www.zabbix.com/documentation/4.4/manual/appendix/items/supported_by_platform

[Halloween_BE]

Thanks for this clear answer.
How do you suggest to have all CPU usage then? SNMP?
Regards

[Atsushi]

Try the method of getting the value from the performance counter above.

[Halloween_BE]

Atsushi, I di what you said and I added the counter:



But even with my server at 90% in Windows, the perf_counter is still showing wrong info:



Why?

[DouglasSkywallker]

Hello,


My dears,has anyone resolve this divergence in TaskManager's % CPU usage with the item collected by "system.cpu.util" ?