VMware GSX Server 3 Administration Guide d'installation télécharger pdf (Page 388)

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VMware ESX Server Administration Guide

sched.cpu.min = <min>

This configuration file option specifies a minimum CPU reservation <min>, as a

percentage, for a virtual machine. The valid range of values for <minPercent> is 0

(the default minimum) to the number representing the total physical CPU resources.

Note that the minimum may be greater than 100 for SMP virtual machines that are

guaranteed more than one full physical CPU.

Note: If ESX Server is unable to guarantee a virtual machine’s specified minimum

percentage(s), you cannot power on that virtual machine. For example, if you have

two uniprocessor (UP) virtual machines, each has a CPU minimum of 80%, and both

are bound to the same processor, then ESX Server does not allow you to power on

both virtual machines. The total CPU percentage is 160%, greater than a single

processor.

sched.cpu.max = <max>

This configuration file option specifies a maximum CPU percentage <maxPercent>

for a virtual machine. The valid range of values for <maxPercent> is 0 to the

number representing the total physical CPU resources. Note that the maximum may

be greater than 100 for SMP virtual machines that are guaranteed more than one full

physical CPU. The default maximum is 100 times the number of virtual CPUs in the

virtual machine; 100 percent for uniprocessor virtual machines and 200 percent for

dual-virtual CPU virtual machines.

Note: A virtual machine will never use more CPU time than the specified maximum

percentage.

sched.cpu.affinity = <set>

This configuration file option specifies the initial processor affinity set for a virtual

machine. If <set> is all or default, then the affinity set contains all available

processors. The specified set may also be a comma-separated list of CPU numbers

such as 0,2,3.

Note: For SMP virtual machines, the affinity set applies to all virtual CPUs on the

virtual machine.

cpu.htsharing = <mode>

Setting the htSharing option configures the Hyper-Threading operation mode for

the virtual machine identified by <id>. Valid modes are:

• any — Each CPU of the virtual machine can share the server’s logical CPUs with

all other virtual machines. This is the default value for htSharing.

• none — Each CPU of the virtual machine requires an entire physical CPU (two

logical CPUs) of the server to operate. This prevents the virtual machine from

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VMware GSX Server 3 Administration Guide d'installation Page 388