void reuseWorksForVariousCacheSizes(int cacheSize) {
        BufferCacheImpl impl = new BufferCacheImpl(cacheSize, 6);
        byte[] toRelease = new byte[5];
        toRelease[0] = 42;
        impl.releaseBuffer(toRelease);

        byte[] fromCache = impl.getBuffer();
        assertSame(toRelease, fromCache, "Released buffer should be returned from cache regardless of cache size");
        // Zeroed upon release

### Node

- Remove PIDs cgroup controller requirement when related feature gates are disabled
  ([#79073](https://github.com/kubernetes/kubernetes/pull/79073), [@rafatio](https://github.com/rafatio))
- Fix kubelet NodeLease potential performance issues. Kubelet now will try to update lease using cached one instead of get from API Server every time. ([#81174](https://github.com/kubernetes/kubernetes/pull/81174), [@answer1991](https://github.com/answer1991))