xlcpupool.cfg - Online Linux Manual PageSection : 5
Updated : 2021-03-18
Source : 4.14.1
Note : Xen
NAMExlcpupool.cfg − XL Cpupool Configuration File Syntax
SYNOPSIS /etc/xen/xlcpupool
DESCRIPTIONTo create a Cpupool with xl requires the provision of a cpupool config file. Typically these live in `/etc/xen/CPUPOOL.cfg` where CPUPOOL is the name of the cpupool.
SYNTAXA cpupool config file consists of a series of KEY=VALUE pairs. A value VALUE is one of: ``STRING'' A string, surrounded by either single or double quotes. NUMBER A number, in either decimal, octal (using a 0 prefix) or hexadecimal (using an 0x prefix). [ VALUE, VALUE, ... ] A list of VALUES of the above types. Lists are homogeneous and are not nested. The semantics of each KEY defines which form of VALUE is required.
OPTIONS
Mandatory Configuration ItemsThe following key is mandatory for any cpupool: name=``NAME'' Specifies the name of the cpupool. Names of cpupools existing on a single host must be unique.
Optional Configuration ItemsThe following options apply to guests of any type. sched=``SCHED'' Specifies the scheduler which is used for the cpupool. Valid values for SCHED are: credit the credit scheduler credit2 the credit2 scheduler rtds the RTDS scheduler The default scheduler is the one used for Pool−0 specified as boot parameter of the hypervisor. nodes=``NODES'' Specifies the cpus of the NUMA-nodes given in NODES (an integer or a list of integers) to be member of the cpupool. The free cpus in the specified nodes are allocated in the new cpupool. cpus=``CPU−LIST'' Specifies the cpus that will be member of the cpupool. All the specified cpus must be free, or creation will fail. CPU−LIST may be specified as follows: [``2'', ``3'', ``5''] means that cpus 2,3,5 will be member of the cpupool. ``0−3,5,^1'' means that cpus 0,2,3 and 5 will be member of the cpupool. A ‟node:” or ‟nodes:” modifier can be used. E.g., ‟0,node:1,nodes:2−3,^10−13” means that pcpus 0, plus all the cpus of NUMA nodes 1,2,3 with the exception of cpus 10,11,12,13 will be memeber of the cpupool. If neither nodes nor cpus are specified only the first free cpu found will be allocated in the new cpupool.
FILES/etc/xen/CPUPOOL.cfg
BUGSThis document is a work in progress and contains items which require further documentation and which are generally incomplete (marked with XXX). However all options are included here whether or not they are fully documented. Patches to improve incomplete items (or any other item) would be gratefully received on the xen−devel@lists.xenproject.org mailing list. Please see <https://wiki.xenproject.org/wiki/Submitting_Xen_Project_Patches> for information on how to submit a patch to Xen. 0
Johanes Gumabo
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