firstRegistrationAttemptTime time.Time
	firstRegisteredNewNodeTime   time.Time
	firstNodeReadyTime           time.Time

	// For testability
	clock clock.Clock
}

func NewNodeStartupLatencyTracker() NodeStartupLatencyTracker {
	bootTime, err := GetBootTime()
	if err != nil {
		bootTime = time.Time{}
	}
	return &basicNodeStartupLatencyTracker{
		bootTime:         bootTime,

		HostUtil:                  hostutil.NewFakeHostUtil(nil),
		PodStartupLatencyTracker:  kubeletutil.NewPodStartupLatencyTracker(),
		NodeStartupLatencyTracker: kubeletutil.NewNodeStartupLatencyTracker(),
		TracerProvider:            noopoteltrace.NewTracerProvider(),
		Recorder:                  &record.FakeRecorder{}, // With real recorder we attempt to read /dev/kmsg.
	}

	return &HollowKubelet{