// CPU cgroup is required and so it expected to be mounted at this point.
	periodExists, err := utilpath.Exists(utilpath.CheckFollowSymlink, path.Join(cpuMountPoint, "cpu.cfs_period_us"))
	if err != nil {
		klog.ErrorS(err, "Failed to detect if CPU cgroup cpu.cfs_period_us is available")
	}
	quotaExists, err := utilpath.Exists(utilpath.CheckFollowSymlink, path.Join(cpuMountPoint, "cpu.cfs_quota_us"))
	if err != nil {

	RunOnce bool
	// cpuCFSQuota enables CPU CFS quota enforcement for containers that
	// specify CPU limits
	CPUCFSQuota bool
	// CPUCFSQuotaPeriod sets the CPU CFS quota period value, cpu.cfs_period_us, defaults to 100ms
	CPUCFSQuotaPeriod metav1.Duration
	// maxOpenFiles is Number of files that can be opened by Kubelet process.
	MaxOpenFiles int64

	fs.DurationVar(&c.CPUCFSQuotaPeriod.Duration, "cpu-cfs-quota-period", c.CPUCFSQuotaPeriod.Duration, "Sets CPU CFS quota period value, cpu.cfs_period_us, defaults to Linux Kernel default")