Your network contains an Active Directory domain named contoso.com. The domain contains a
member server named Server1. Server1 runs Windows Server 2012 R2 and has the Hyper-V server
role installed.
Server1 hosts 10 virtual machines. A virtual machine named VM1 runs Windows Server 2012 R2 and
hosts a processor-intensive application named App1.
Users report that App1 responds more slowly than expected.
You need to monitor the processor usage on VM1 to identify whether changes must be made to the
hardware settings of VM1.
Which performance object should you monitor on Server1?
A.
Processor
B.
Hyper-V Hypervisor Virtual Processor
C.
Hyper-V Hypervisor Logical Processor
D.
Hyper-V Hypervisor Root Virtual Processor
E.
Process
Explanation:
In the simplest way of thinking the virtual processor time is cycled across the available logical
processors in a round-robin type of fashion. Thus all the processing power gets used over time, and
technically nothing ever sits idle.To accurately measure the processor utilization of a guest operating system, use the “\Hyper-V
Hypervisor Logical Processor (Total)\% Total Run Time” performance monitor counter on the HyperV host operating system.
WHY NOT b?
The performance indicator Hyper-V – virtual processor the hypervisor for a directed monitoring of one or more virtual processors to your Hyper-V computer.
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C is the correct.
This link support this:
To troubleshoot processor performance of guest operating systems on a Hyper-V environment, it is best to strive for a balance between the values reported by the host operating system for “\Hyper-V Hypervisor Logical Processor(_Total)\% Total Run Time” (LPTR) and “\Hyper-V Hypervisor Virtual Processor(_Total)\% Total Run Time” (VPTR).
https://msdn.microsoft.com/en-us/library/cc768535(v=bts.10).aspx
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I posted a more full explanation and links on another version. but B is correct.
NIxx.. all your link and quote said, was that its best practice to use BOTH virtual and logical. which it is.
but to monitor the process of a single VM, you need to use Virtual. Logical gives an overview of total processor usage across all VMs and Host.
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The best answer is C.
That being said, you should look at both.
The link NixxBr provided explained explicitly why the Hyper-V Hypervisor Root Virtual Processor can provide incorrect information.
Also, from personal experience in production environments, virtual processor utilization stats can be grossly misleading when the physical/logical processors are overloaded/over assigned.
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i think correct choice C
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