2V0-622 · Question #173
An administrator notices that a Windows virtual machine is using 95% CPU in Task Manager. Which two actions should be taken to resolve this issue? (Choose two.)
The correct answer is B. Increase the CPU Shares on the resource pool where the virtual machine resides. D. Increase the CPU limit on the resource pool where the virtual machine resides.. When a VM shows high CPU utilization, increasing CPU Shares on the resource pool raises its scheduling priority, and increasing the CPU limit on the resource pool removes a hard ceiling that may be throttling available CPU.
Question
An administrator notices that a Windows virtual machine is using 95% CPU in Task Manager. Which two actions should be taken to resolve this issue? (Choose two.)
Options
- AIncrease the memory reservation of the virtual machine.
- BIncrease the CPU Shares on the resource pool where the virtual machine resides.
- CDecrease the CPU reservation of the virtual machine.
- DIncrease the CPU limit on the resource pool where the virtual machine resides.
How the community answered
(59 responses)- A25% (15)
- B61% (36)
- C14% (8)
Why each option
When a VM shows high CPU utilization, increasing CPU Shares on the resource pool raises its scheduling priority, and increasing the CPU limit on the resource pool removes a hard ceiling that may be throttling available CPU.
Memory reservation controls RAM guarantees and has no relationship to CPU scheduling or CPU contention resolution.
CPU Shares control the relative priority a VM receives during CPU contention; increasing shares on the resource pool gives the affected VM a larger proportion of available CPU cycles during scheduling contention, directly reducing CPU wait time.
Decreasing a CPU reservation lowers the guaranteed minimum CPU floor for the VM, which would worsen CPU starvation rather than improve it.
A CPU limit on a resource pool imposes a hard maximum on total CPU throughput for all VMs in that pool; if the limit is set below demand, VMs are throttled even when physical CPU is idle, so increasing the limit removes this artificial constraint.
Concept tested: vSphere resource pool CPU shares and limits management
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-98BD5A8A-260A-494F-BAAE-74781F5C4B87.html
Topics
Community Discussion
No community discussion yet for this question.