nerdexam
Broadcom-VMware

2V0-622 · Question #172

Refer to the Exhibit. Examine the esxtop command output shown in the Exhibit. Which option would improve application performance for the SlowVM virtual machine?

The correct answer is D. Increase the CPU limit assigned to SlowVM.. The esxtop output shows the VM is being throttled by a CPU limit, so removing or raising that limit is the correct fix.

Section 7 – Administer and Analyze vSphere 6.5 Performance

Question

Refer to the Exhibit. Examine the esxtop command output shown in the Exhibit. Which option would improve application performance for the SlowVM virtual machine?

Exhibit

2V0-622 question #172 exhibit

Options

  • AIncrease the number of vCPUs provided to SlowVM.
  • BDecrease the number of vCPUs provided to SlowVM.
  • CMove SlowVM to another ESXi host with more physical CPU resources available.
  • DIncrease the CPU limit assigned to SlowVM.

How the community answered

(25 responses)
  • A
    16% (4)
  • B
    24% (6)
  • C
    4% (1)
  • D
    56% (14)

Why each option

The esxtop output shows the VM is being throttled by a CPU limit, so removing or raising that limit is the correct fix.

AIncrease the number of vCPUs provided to SlowVM.

Adding more vCPUs does not resolve throttling caused by a CPU limit; the scheduler will continue to cap the VM at the same MHz ceiling regardless of vCPU count.

BDecrease the number of vCPUs provided to SlowVM.

Decreasing the vCPU count reduces the VM's scheduling parallelism and does not address the root cause of a configured resource limit.

CMove SlowVM to another ESXi host with more physical CPU resources available.

Migrating to another host does not help because the CPU limit is a VM-level configuration that travels with the VM and will continue to throttle it on any host.

DIncrease the CPU limit assigned to SlowVM.Correct

The esxtop output displays a high %MLMTD (percentage of time the VM was throttled due to a CPU limit), indicating that a configured CPU limit is preventing SlowVM from using available physical CPU cycles. Increasing or removing the CPU limit allows the VM to consume the resources it is entitled to, directly improving application performance.

Concept tested: Diagnosing CPU limit throttling via esxtop %MLMTD counter

Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.resmgmt.doc/GUID-6C7E9858-EB53-4A50-9A66-1D59D43E5C8D.html

Topics

#CPU limit#esxtop#vCPU performance

Community Discussion

No community discussion yet for this question.

Full 2V0-622 Practice