parameter_defaults:
  # Reduce memory contention when collocating Nova compute and Ceph
  # OSD services (HCI). For use with Ceph filestore, not bluestore.
  TunedCustomProfile: |
    [main]
    summary=ceph-osd Filestore tuned profile
    include=throughput-performance
    [sysctl]
    vm.dirty_ratio = 10
    vm.dirty_background_ratio = 3
    [sysfs]
    /sys/kernel/mm/ksm/run=0
  TunedProfileName: ceph-filestore-osd-hci