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Broadcom-VMware

2V0-621D · Question #161

An administrator is troubleshooting a performance problem with a virtual machine (VM). The VM and ESXi host configuration is as follows: - The application which runs within the virtual machine is high

The correct answer is A. Set the Advanced Parameter numa.vcpu.preferHT = TRUE in the virtual machine configuration. Set advanced parameter numa.vcpu.preferHT = TRUE in the VM configuration file to increase CPU performance.

Section 7 – Administer and Analyze vSphere 6.x Performance

Question

An administrator is troubleshooting a performance problem with a virtual machine (VM). The VM and ESXi host configuration is as follows:

  • The application which runs within the virtual machine is highly

sensitive to memory latency, but has low processor utilization.

  • The virtual machine has 6 vCPUs.
  • The ESXi host CPU topology has 2 Physical CPU Sockets, each with 8

Logical CPUs.

  • The ESXi host CPU has Hyper Threading enabled.

The administrator would like to improve CPU performance for this VM. Other VMs on the host have no performance issues. Which action should the administrator take to resolve the issue?

Options

  • ASet the Advanced Parameter numa.vcpu.preferHT = TRUE in the virtual machine configuration
  • BSet the Advanced Parameter numa.vcpu.preferHT = FALSE in the virtual machine configuration
  • CSet the Advanced Parameter numa.PreferHT = 1 in the ESXi host configuration file.
  • DSet the Advanced Parameter numa.PreferHT = 0 in the ESXi host configuration file.

How the community answered

(53 responses)
  • A
    85% (45)
  • B
    2% (1)
  • C
    4% (2)
  • D
    9% (5)

Explanation

Set advanced parameter numa.vcpu.preferHT = TRUE in the VM configuration file to increase CPU performance.

Topics

#NUMA configuration#CPU performance#memory latency#Hyper-Threading

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