// of the qos level cgroup resource constraints
	periodicQOSCgroupUpdateInterval = 1 * time.Minute
)

type QOSContainerManager interface {
	Start(func() v1.ResourceList, ActivePodsFunc) error
	GetQOSContainersInfo() QOSContainersInfo
	UpdateCgroups() error
}

type qosContainerManagerImpl struct {
	sync.Mutex
	qosContainersInfo  QOSContainersInfo
	subsystems         *CgroupSubsystems
	cgroupManager      CgroupManager