18. června 2012 14:03
I've a physical host with 2 cpu each with 6 cores, 12 considering hyperthreading. Operating system is Windows 2008R2 SP1 Datacenter Edition. On the top of this host there are several virtual machine. One of theese have 4 vCpu assigned with no CPU reservation and no CPU limits. On the virtual machine I've CPU utilization close to 100% all the time but in the meanwhile the host have CPU utilization close to 0%
18. června 2012 14:58
The host may show 0% because of hardware virtualization (Intel VT-x or AMD-V). Since the hardware (CPU in this case) is abstracted from the guests, the host may not show any of the utilization from the guests.
18. června 2012 20:48
On the VM , can you check which process has highest CPU rank? ( Task Manager )
Do the host and VM have up-to-date patch and updates?
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19. června 2012 3:11Moderátor
Please check the following blog.
Hyper-V, Virtual Machine CPU usage and Task Manager
- Označen jako odpověď Andrea Caldarone 19. června 2012 9:19