2V0-32.24 Question 128
Single answerYou are tasked with optimizing the performance of a VMware vSphere cluster in a cloud environment. During a routine analysis, you notice that certain virtual machines (VMs) are experiencing high CPU Ready times. What is the most appropriate action to mitigate this issue?
- A
Increase the number of vCPUs assigned to the affected VMs.
- B
Reduce the number of vCPUs allocated to the affected VMs.
- C
Enable CPU Affinity for the affected VMs to dedicate specific CPU cores.
- D
Migrate the affected VMs to hosts with lower CPU utilization.
Show answer and explanation
Correct answer: D
Explanation
High CPU Ready times typically indicate contention for physical CPU resources on the host. By migrating the affected VMs to hosts with lower CPU utilization, you can balance the load and reduce contention, thereby improving performance. This is a standard best practice in VMware vSphere environments for optimizing cluster performance.
- A. Incorrect.
Increasing the number of vCPUs may worsen the CPU Ready time as it increases contention for physical CPU resources, especially if the host is already experiencing CPU saturation.
- B. Incorrect.
Reducing the number of vCPUs may help in some cases, but it does not directly address CPU contention at the host level, which is likely the root cause of high CPU Ready time.
- C. Incorrect.
Enabling CPU Affinity can complicate resource management and is not recommended for general performance optimization unless there is a specific workload requirement.
- D. Correct.
Migrating the affected VMs to hosts with lower CPU utilization helps to balance the CPU load across the cluster and reduces contention, directly addressing the high CPU Ready time.