CPU Usage columns always show as 0% in Hyper-V Manager

Question

I have 3 test machines for Hyper-V.

• Test A-machine: Intel CPU, Windows Server 2022, core scheduler for Hyper-V
• Test [B, C]-machine: AMD CPU, Windows 11, root scheduler for Hyper-V

In all of the machines, Hyper-V Manager shows CPU Usage as 0% on all VMs. (refer to attached image).

What is the problem for those Hyper-V servers?

I tried performance counter reset (using lodctr /R in Host and VM), enabled all "VMIntegrationService", enabled "ResourceMeteringEnabled", all of the which is useless for the problem.

Answer 1

Hi，

You can try specific performance counters in Performance Monitor on the Hyper-V host to monitor CPU usage. The relevant counters are:

• Hyper-V Hypervisor Logical Processor (*)% Total Run Time The total non-idle time of the logical processors
• Hyper-V Hypervisor Logical Processor (*)% Guest Run Time The time spent running cycles within a guest or within the host
• Hyper-V Hypervisor Logical Processor (*)% Hypervisor Run Time The time spent running within the hypervisor
• Hyper-V Hypervisor Root Virtual Processor ()\ Measures the CPU usage of the root partition
• Hyper-V Hypervisor Virtual Processor ()\ Measures the CPU usage of guest partitions

These counters provide a more accurate representation of CPU usage for VMs on Hyper-V hosts.

https://learn.microsoft.com/en-us/windows-server/administration/performance-tuning/role/hyper-v-server/configuration#cpu-statistics

https://learn.microsoft.com/en-us/troubleshoot/windows-server/virtualization/windows-server-hyper-v-host-minroot-behaviors

Best Regards,

Ian Xue

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Answer 2

I think, it started after Windows 11 24H2 and Windows Server 2025. (for example, CPU Usage shows normally in Windows 11 23H2.)