Hyper-V: Performance (Counters)

Recommended Performance Counter

Hyper-V Hypervisor Logical Processor

Hyper-V Hypervisor Virtual Processor

Hyper-V Hypervisor Virtual Processor

CPU Wait Time per Dispatch

• Wait: The average time (in nanoseconds) spent waiting for a virtual processor to be dispatched onto a logical processor.
• Counter: Hyper-V Hypervisor Logical Processor\CPU Wait Time per Dispatch

Physical CPU Context Switching

• What: This measures the rate (number of times per second) each logical CPU changes what virtual processor it is running.
• Counter: Hyper-V Hypervisor Logical Processor(*)\Context Switches/sec
• Threshold: (any instance (Core) except for "_Total") > 20000, (sustained for > 5min).
• Why: We use this as a general health & performance indicator for the host & virtual machines. This counter must be used in context with all other activity based counters (CPU, Disk & Network, latency & throughput).
• What to do if threshold is exceeded:
  • Check VM config (particularly remove / disable any active & busy emulated devices)
  • Check that the VM is using the correct version of the integration components.
  • Check host operating system utilization Root VP CPU usage (host OS utilization) - see the "Hyper-V Hypervisor Root Virtual Processor" counter section for the specifics.
  • Check drivers - particularly network and storage drivers, but other too.
  • Check for significant inconsistency across your hosts - it can indicate significant configuration or load differences.

Memory

Memory (NUMA)

Hyper-V Dynamic Memory

LogicalDisk

PhysicalDisk

Cluster Shared Volumes

(> 1 MB/s) indicates Shared VHDX files or that CSV is in redirected mode.

Network Interface

Weitere Informationen:

• https://blogs.technet.microsoft.com/neales/2016/10/24/hyper-v-performance-cpu/
• http://computerperformancebydesign.com/hyper-v-architecture/