Citrix Systems 6 manual Uuid=vmuuid

Parameter Name

Description

Type

VCPUs-params	configuration	parameters	for	read/write map parameter
	the selected VCPU policy.
	You can tune a VCPU's pinning
	with
	xe vm-param-set \
	uuid=<vm_uuid> \
	VCPUs-params:mask=1,2,3
	The selected VM will then run
	on physical CPUs 1, 2, and 3
	only.
	You can also tune the VCPU
	priority (xen	scheduling)	with
	the cap and weight parameters;
	for example
	xe vm-param-set \
	uuid=<vm_uuid> \
	VCPUs-params:weight=512
	xe vm-param-set \
	uuid=<vm_uuid> \
	VCPUs-params:cap=100
	A VM with a weight of 512 will
	get twice as much CPU as a
	domain with a weight of 256
	on a contended XenServer host.
	Legal weights range from 1 to
	65535 and the default is 256.
	The cap optionally fixes the
	maximum amount of CPU a VM
	will be able to consume, even if
	the XenServer host has idle CPU
	cycles. The cap is expressed in
	percentage of one physical CPU:
	100 is 1 physical CPU, 50 is half
	a CPU, 400 is 4 CPUs, etc. The
	default, 0, means there is no
	upper cap.
VCPUs-max	maximum number of virtual			read/write
	CPUs.
VCPUs-at-startup	boot number of virtual CPUs			read/write

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