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  1. Red Hat OpenStack Services on OpenShift
  2. OSPRH-83

Offlining unused CPU cores for better power management

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    • Icon: Epic Epic
    • Resolution: Unresolved
    • Icon: Critical Critical
    • rhos-18.0 FR 3
    • rhos-18.0.0
    • nova-operator
    • None
    • Enable power-saving by default
    • 4
    • False
    • Committed
    • Committed
    • In Progress
    • RHOSSTRAT-270 - Red Hat OpenStack 18.0 Greenfield Deployment
    • nova-operator-container-1.0.0-16
    • Committed
    • Committed
    • 40% To Do, 20% In Progress, 40% Done
    • Hide
      .With this update, the CPU power management feature is enabled by default.

      The CPU power management feature is enabled by default in RHOSO 18.0.1.
      Show
      .With this update, the CPU power management feature is enabled by default. The CPU power management feature is enabled by default in RHOSO 18.0.1.
    • Release Note Not Required
    • Proposed
    • Automated
    • 2023Q4, 2024Q1
    • Rejected

      power management has been added to nova.
      we should default to enabling this in the next gen installer.

      to do this we should set
      [libvirt]
      cpu_power_management=true

      https://docs.openstack.org/nova/latest/configuration/config.html#libvirt.cpu_power_management

      this will enable the default cpu_state cpu_power_management_strategy

      https://docs.openstack.org/nova/latest/configuration/config.html#libvirt.cpu_power_management_strategy

      so no other configuration is required.

              rh-ee-bgibizer Balazs Gibizer
              smooney@redhat.com Sean Mooney
              rhos-dfg-compute
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                Created:
                Updated: