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14.7.2. Setting NUMA Parameters
The
virsh numatune
can either set or retrieve the NUMA parameters for a specified domain. Within the Domain XML file these parameters are nested within the <numatune>
element. Without using options, only the current settings are displayed. The numatune domain
command requires a specified domain and can take the following options:
--mode
- The mode can be set to eitherstrict
,interleave
, orpreferred
. Running domains cannot have their mode changed while live unless the domain was started withinstrict
mode.--nodeset
contains a list of NUMA nodes that are used by the host physical machine for running the domain. The list contains nodes, each separated by a comma, with a dash-
used for node ranges and a caret^
used for excluding a node.- Only one of the following three options can be used per instance:
--config
will take effect on the next boot of a persistent guest virtual machine.--live
will set the scheduler information of a running guest virtual machine.--current
will affect the current state of the guest virtual machine.