Difference between revisions of "Virsh setvcpus"

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Line 8: Line 8:
 
* <code>virsh setvcpus --count 10 VM_NAME</code>
 
* <code>virsh setvcpus --count 10 VM_NAME</code>
  
 +
Check:
 
* <code>[[virsh dominfo]] VM_NAME | grep CPU</code>
 
* <code>[[virsh dominfo]] VM_NAME | grep CPU</code>
 
+
* <code>[[virsh vcpucount]]</code>
  
 
* Hot unplugging vCPUs is not supported on [[Red Hat Enterprise Linux 7]]<ref>https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/virtualization_deployment_and_administration_guide/index</ref>
 
* Hot unplugging vCPUs is not supported on [[Red Hat Enterprise Linux 7]]<ref>https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/virtualization_deployment_and_administration_guide/index</ref>

Revision as of 08:18, 21 October 2020

https://libvirt.org/sources/virshcmdref/html-single/#sect-setvcpus

  • virsh setvcpus VM_NAME 5 --live
  • virsh setvcpus VM_NAME 5 --config --maximum
  • virsh setvcpus VM_NAME 5 --config
  • virsh setvcpus VM_NAME 5 --config --live
  • virsh setvcpus --count 10 VM_NAME

Check:

virsh setvcpus VM_NAME 2 --live
error: invalid argument: requested vcpus is greater than max allowable vcpus for the live domain: 16 > 4
virsh setvcpus VM_NAME 2 --live
error: Requested operation is not valid: domain is not running
virsh setvcpus --count 10 VM_NAME
error: Requested operation is not valid: domain is not running
virsh setvcpus VM_NAME 2 --config --maximum
(no answer on success)
virsh setvcpus VM_NAME 2 --config
(no answer on success)

Related commands

Related terms

 <vcpu placement='static'>4</vcpu>


 /var/log/libvirt/qemu/VM_MACHINE_NAME.log
.../... -smp 2,sockets=2,cores=1,threads=1 .../...

See also

  • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/virtualization_deployment_and_administration_guide/index
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