Hyper-V performance can be optimized by making good purchase decisions, setting a target density level, and using the Microsoft Virtualization Manager (MVM) to manage the system.
The CPU usage shown by Hyper-V Manager is how much CPU is being consumed across the entire system, even though inside the VM the virtual CPUs may be very busy.
Each time the scheduler executes it, it consumes 100% of the core that it lands on.
CPU statistics. Hyper-V publishes performance counters to help characterize the behavior of the virtualization server and report the resource usage. The standard set of tools for viewing performance counters in…
Hyper-V Configuration | Microsoft Learn
This article provides a comprehensive list of best practices for optimizing Hyper-V performance, including general host architecture, management operating system, virtualization management, virtualization management, and virtualization management. It also outlines the philosophy used in the article, such as the importance of making good purchase decisions, setting a target density level, and using the Microsoft Virtualization Manager (MVM) to manage the system. Finally, it provides tips on how to optimize the performance of Hyper-V with VMware ESXi, Hyper-V XenServer, and VMware ESXi.
95 Best Practices for Optimizing Hyper-V Performance - Altaro
For example, a 22% usage shown by Hyper-V Manager equates to about a 92% CPU utilization inside the VM.
So it appears that the CPU Usage that you see in Hyper-V Manager is how much CPU is this VM consuming across the entire system even though inside the VM the virtual CPUs may be VERY busy.
Hyper-V CPU Usage in Hyper-V manager vs the VM - The Spiceworks Community
Each time the scheduler executes it, it consumes 100% of the core that it lands on. The next time it runs, it stays on the same core or goes to the other core. Whichever core the scheduler assigns it to, it consumes 100%.
Hyper-V Virtual CPUs Explained - Altaro
vCPU isn't a one to one assignment with the physical CPU . When you assign vCPUs to a VM in Hyper-V, really you're allocating CPU time to that VM. If you…
Optimizing Hyper-V VM CPU Utilization