* Fix incorrect CPU usage with 4.7 kernel
  * OOM parser uses kmsg
  * Add hugepages support
  * Add CRI-O support

* Sharing a PID namespace between containers in a pod is disabled by default in version 1.8. To enable for a node, use the `--docker-disable-shared-pid=false` kubelet flag. Be aware that PID namespace sharing requires Docker version greater than or equal to 1.13.1.

* Fix issues related to the eviction manager.

- The --docker-disable-shared-pid kubelet flag has been removed. PID namespace sharing can instead be enable per-pod using the ShareProcessNamespace option. ([#66506](https://github.com/kubernetes/kubernetes/pull/66506), [@verb](https://github.com/verb))

Pid Limiting is Graduating to Beta ([#757](https://github.com/kubernetes/enhancements/issues/757))

- Prevents a pod from starving pid resource
- Ability to isolate pid resources pod-to-pod and node-to-pod
kubernetes/kubernetes: [#73651](https://github.com/kubernetes/kubernetes/pull/73651)

* Some container runtimes share a process (PID) namespace for all containers in a pod. This will become the default for Docker in a future release of Kubernetes. You can preview this functionality if running with the CRI and Docker 1.13.1 by enabling the --experimental-docker-enable-shared-pid kubelet flag. ([#41583](https://github.com/kubernetes/kubernetes/pull/41583), [@verb](https://github.com/verb))

### PID Limits graduates to General Availability

PID Limits features are now generally available on both `SupportNodePidsLimit` (node-to-pod PID isolation) and `SupportPodPidsLimit` (ability to limit PIDs per pod), after being enabled-by-default in beta stage for a year.

* Sharing a PID namespace between containers in a pod is disabled by default in 1.8. To enable for a node, use the --docker-disable-shared-pid=false kubelet flag. Note that PID namespace sharing requires docker >= 1.13.1. ([#51634](https://github.com/kubernetes/kubernetes/pull/51634), [@verb](https://github.com/verb))

When using the separate flag, the order in which they're specified doesn't matter.  ([#58123](https://github.com/kubernetes/kubernetes/pull/58123), [@hzxuzhonghu](https://github.com/hzxuzhonghu))

* The kubelet  --docker-disable-shared-pid flag, which runs docker containers with a process namespace that is shared between all containers in a pod, is now deprecated and will be removed in a future release. It is replaced by `v1.Pod.Spec.ShareProcessNamespace`, which configures this behavior....

// https://www.iana.org/domains/root/db/pictet.html
pictet

// pictures : Binky Moon, LLC
// https://www.iana.org/domains/root/db/pictures.html
pictures

// pid : Top Level Spectrum, Inc.
// https://www.iana.org/domains/root/db/pid.html
pid

// pin : Amazon Registry Services, Inc.
// https://www.iana.org/domains/root/db/pin.html
pin

// ping : Ping Registry Provider, Inc.

  * **WARNING:** A [known issue](https://github.com/kubernetes/kubernetes/issues/44041)
    in v1.6.0 causes `Pod.Spec.HostPid` (using the host PID namespace for the pod) to always
    be false. Please wait for v1.6.2, which will include a fix for this issue.
* Various scheduling features have graduated to beta:

- Fixed a bug where the Kubelet miscalculated the process usage of pods, causing pods to never get evicted for PID usage. ([#124101](https://github.com/kubernetes/kubernetes/pull/124101), [@haircommander](https://github.com/haircommander)) [SIG Node and Testing]