6.0

Allocate CPU Resources in the vSphere Client
You can change the amount of CPU resources allocated to a virtual machine by using the shares,
reservations, and limits settings.
A virtual machine has the following user-defined settings that affect its CPU resource allocation.
Limit
Places a limit on the consumption of CPU time for a virtual machine. This
value is expressed in MHz.
Reservation
Specifies the guaranteed minimum allocation for a virtual machine. The
reservation is expressed in MHz.
Shares
Each virtual machine is granted a number of CPU shares. The more shares a
virtual machine has, the more often it gets a time slice of a CPU when there is
no CPU idle time. Shares represent a relative metric for allocating CPU
capacity.
NOTE Virtual machine hardware versions 9, 10 and 11 features are read-only when connected to the ESXi
host or vCenter Server system using the vSphere Client.
Prerequisites
Required Privilege: Virtual machine.Configuration.Change resource
Procedure
1 In the vSphere Client inventory, right-click the virtual machine and select Edit Settings.
2 Click the Resources tab and select CPU.
3 Allocate the CPU capacity for this virtual machine.
Option Description
Shares
CPU shares for this virtual machine in relation to the parent’s total. Sibling
virtual machines share resources according to their relative share values
bounded by the reservation and limit. Select Low, Normal, or High, which
specify share values respectively in a 1:2:4 ratio. Select Custom to give each
virtual machine a specific number of shares, which express a proportional
weight.
Reservation
Guaranteed CPU allocation for this virtual machine.
Limit
Upper limit for this virtual machine’s CPU allocation. Select Unlimited to
specify no upper limit.
4 Click OK to save your changes.
vSphere Administration with the vSphere Client
146 VMware, Inc.