Citrix Systems 6 User Manual
153
Parameter Name
Description
Type
VCPUs-params
configuration parameters for
the selected VCPU policy.
the selected VCPU policy.
You can tune a VCPU's pinning
with
with
xe template-param-set \
uuid=
<template_uuid>
\
VCPUs-params:mask=1,2,3
A VM created from this
template will then run on
physical CPUs 1, 2, and 3 only.
template 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
priority (xen scheduling) with
the cap and weight parameters;
for example
xe template-param-set \
uuid=
<template_uuid>
\
VCPUs-params:weight=512
xe template-param-set \
uuid=
<template_uuid>
\
VCPUs-params:cap=100
A VM based on this template
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.
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
based on this template 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.
maximum amount of CPU a VM
based on this template 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.
read/write map parameter
VCPUs-max
maximum number of VCPUs
read/write
VCPUs-at-startup
boot number of VCPUs
read/write
actions-after-crash
action to take if a VM based on
this template crashes
this template crashes
read/write
console-uuids
virtual console devices
read only set parameter
platform
platform-specific configuration
read/write map parameter