apiVersion: v1
kind: ConfigMap
metadata:
  name: tuned-profiles
  namespace: openshift-cluster-node-tuning
data:
  tuned-profiles-data: |
    openshift: |
      [main]
      summary=Optimize systems running OpenShift (parent profile)
      include=${f:virt_check:virtual-guest:throughput-performance}

      [selinux]
      avc_cache_threshold=8192

      [net]
      nf_conntrack_hashsize=131072

      [sysctl]
      net.ipv4.ip_forward=1
      kernel.pid_max=>131072
      net.netfilter.nf_conntrack_max=1048576
      net.ipv4.neigh.default.gc_thresh1=8192
      net.ipv4.neigh.default.gc_thresh2=32768
      net.ipv4.neigh.default.gc_thresh3=65536
      net.ipv6.neigh.default.gc_thresh1=8192
      net.ipv6.neigh.default.gc_thresh2=32768
      net.ipv6.neigh.default.gc_thresh3=65536
    openshift-control-plane: |
      [main]
      summary=Optimize systems running OpenShift control plane
      include=openshift

      [sysctl]
      # ktune sysctl settings, maximizing i/o throughput
      #
      # Minimal preemption granularity for CPU-bound tasks:
      # (default: 1 msec#  (1 + ilog(ncpus)), units: nanoseconds)
      kernel.sched_min_granularity_ns=10000000
      # The total time the scheduler will consider a migrated process
      # "cache hot" and thus less likely to be re-migrated
      # (system default is 500000, i.e. 0.5 ms)
      kernel.sched_migration_cost_ns=5000000
      # SCHED_OTHER wake-up granularity.
      #
      # Preemption granularity when tasks wake up.  Lower the value to
      # improve wake-up latency and throughput for latency critical tasks.
      kernel.sched_wakeup_granularity_ns=4000000
    openshift-node: |
      [main]
      summary=Optimize systems running OpenShift nodes
      include=openshift

      [sysctl]
      net.ipv4.tcp_fastopen=3
      fs.inotify.max_user_watches=65536
    openshift-node-es: |
      [main]
      summary=Optimize systems running ES on OpenShift nodes
      include=openshift-node

      [sysctl]
      vm.max_map_count=262144
