m.qosContainersInfo = QOSContainersInfo{
		Guaranteed: rootContainer,
		Burstable:  qosClasses[v1.PodQOSBurstable],
		BestEffort: qosClasses[v1.PodQOSBestEffort],
	}
	m.getNodeAllocatable = getNodeAllocatable
	m.activePods = activePods

	// update qos cgroup tiers on startup and in periodic intervals
	// to ensure desired state is in sync with actual state.
	go wait.Until(func() {