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You suspect high CPU utilization is the culprit. To definitively ascertain the cause of the performance proble

You have a Windows virtual machine (VM) that is performing poorly. You suspect high CPU utilization is the culprit. To definitively ascertain the cause of the performance problem, you should look for a _____.

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A.
high CPU Usage % value in Windows Task Manager

B.
low CPU Ready value in VirtualCenter

C.
high CPU Usage % in a third-party monitoring tool installed in the VM

D.
high CPU Ready value in VirtualCenter

6 Comments on “You suspect high CPU utilization is the culprit. To definitively ascertain the cause of the performance proble

  1. kenny says:

    Belive that answer D is correct. CPU Ready is when the guest is ready to run but CPI scheduler can not run because it is competing with other resources. A higher value indicate a problem.




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  2. b says:

    It seems to me that “D” is the correct answer

    The amount of time a virtual machine waits in the queue in a ready-to-run state before it can be scheduled on a CPU is known as ready time.

    The higher the ready time is, the slower the virtual machine is performing. The ready time should preferably be as low as possible. Virtual machines that are allocated multiple cpus or have high timer interrupts are more frequently seen with high ready time values.

    Previously VMware warned about having virtual machines with 5% or higher values, but they now seem to no longer specify such a given value. Whether 5% is ok for a given service depends on the service, but it should preferably be as low as possible.

    VMware has a very good paper on this subject here: http://www.vmware.com/pdf/esx3_ready_time.pdf




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  3. Gary says:

    It is D. a cannot be the answer be cause high CPU utilization could mean 80%, 85%, or 90% and unless the CPU utilization on the VM is 100%, it would mean that the VM is performing properly.




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