---

#
# Configure hugepages on workers of an OCP cluster.
#
# See documentation:
# - https://docs.openshift.com/container-platform/latest/scalability_and_performance/what-huge-pages-do-and-how-they-are-consumed-by-apps.html
#
# hugepages are required by some KubeVirt tier1 tests:
# - https://github.com/kubevirt/kubevirt/blob/master/tests/vmi_configuration_test.go
#
#

kind: Tuned
apiVersion: tuned.openshift.io/v1
metadata:
  name: hugepages
  namespace: openshift-cluster-node-tuning-operator
spec:
  profile:
    - name: openshift-node-hugepages
      data: |
        [main]
        summary=Boot time configuration for hugepages
        include=openshift-node
        [bootloader]
        # Allocate 32x2Mi pages and 1x1Gi pages
        cmdline_openshift_node_hugepages=default_hugepagesz=2M hugepages=32 hugepagesz=1G hugepages=1
  recommend:
    - machineConfigLabels:
        machineconfiguration.openshift.io/role: "worker"
      priority: 25
      profile: openshift-node-hugepages