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2V0-622 · Question #483

A vSphere Administrator would like to identify which physical NUMA node their virtual machine is currently residing on. What esxtop metric would provide this information?

The correct answer is A. GST_ND[x]. The esxtop metric GST_ND[x] reports the physical NUMA node on which a virtual machine's guest memory is currently allocated.

Section 7 – Administer and Analyze vSphere 6.5 Performance

Question

A vSphere Administrator would like to identify which physical NUMA node their virtual machine is currently residing on. What esxtop metric would provide this information?

Options

  • AGST_ND[x]
  • BOVD_ND[x]
  • CNRMEM
  • DNHN

How the community answered

(35 responses)
  • A
    94% (33)
  • B
    3% (1)
  • D
    3% (1)

Why each option

The esxtop metric GST_ND[x] reports the physical NUMA node on which a virtual machine's guest memory is currently allocated.

AGST_ND[x]Correct

GST_ND[x] stands for 'Guest NUMA Node' and directly indicates which physical NUMA node the VM's memory and workload are placed on, making it the correct metric for identifying NUMA locality for a running VM.

BOVD_ND[x]

OVD_ND[x] relates to overhead memory NUMA node placement, not the guest workload's primary NUMA node.

CNRMEM

NRMEM represents the amount of remote NUMA memory being used, which quantifies NUMA inefficiency but does not identify the specific node the VM resides on.

DNHN

NHN is not a standard esxtop NUMA metric for identifying the current physical NUMA node of a guest VM.

Concept tested: esxtop NUMA node identification metrics

Source: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-resource-management/GUID-E8C56EB0-407E-4D8C-B23C-4F0B28FF4C98.html

Topics

#esxtop#NUMA#performance metrics#VM placement

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