topology, _ := topology.Discover(&machineInfo)

		var activePods []*v1.Pod
		for p := range tc.assignments {
			pod := v1.Pod{}
			pod.UID = types.UID(p)
			for c := range tc.assignments[p] {
				container := v1.Container{}
				container.Name = c
				pod.Spec.Containers = append(pod.Spec.Containers, container)
			}
			activePods = append(activePods, &pod)
		}

		m := manager{
			policy: &staticPolicy{

		kubeClient:      kubeClient,
		reconcilePeriod: reconcilePeriod,
		activePods:      nil,
		sourcesReady:    nil,
	}

	return manager, nil
}

// Start starts the reconcile loop of the manager.
func (m *ManagerImpl) Start(activePods ActivePodsFunc, sourcesReady config.SourcesReady) error {
	m.activePods = activePods
	m.sourcesReady = sourcesReady

	var tests = []struct {
		desc                             string
		activePods                       []*v1.Pod
		shutdownGracePeriodRequested     time.Duration
		shutdownGracePeriodCriticalPods  time.Duration
		systemInhibitDelay               time.Duration

		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() {
		err := m.UpdateCgroups()
		if err != nil {

			activePods := controller.FilterActivePods(logger, tc.pods)
			failedIndexes := calculateFailedIndexes(logger, &tc.job, tc.pods)
			_, succeededIndexes := calculateSucceededIndexes(logger, &tc.job, tc.pods)
			jobCtx := &syncJobCtx{
				job:                  &tc.job,
				pods:                 tc.pods,
				activePods:           activePods,
				succeededIndexes:     succeededIndexes,

		return m.writeCheckpoint()
	}

	return nil
}

// checkPodActive checks if the given pod is still in activePods list
func (m *ManagerImpl) checkPodActive(pod *v1.Pod) bool {
	activePods := m.activePods()
	for _, activePod := range activePods {
		if activePod.UID == pod.UID {
			return true
		}
	}

	return false
}

		err := cm.draManager.Start(dra.ActivePodsFunc(activePods), sourcesReady)
		if err != nil {
			return fmt.Errorf("start dra manager error: %w", err)
		}
	}

	// Initialize CPU manager
	err := cm.cpuManager.Start(cpumanager.ActivePodsFunc(activePods), sourcesReady, podStatusProvider, runtimeService, containerMap)
	if err != nil {

}

// GetGather returns the gatherer. It used by test case outside current package.
func GetGather() metrics.Gatherer {
	return legacyregistry.DefaultGatherer
}

// ActivePods returns the pending pods metrics with the label active
func ActivePods() metrics.GaugeMetric {
	return pendingPods.With(metrics.Labels{"queue": "active"})
}

// BackoffPods returns the pending pods metrics with the label backoff

			for i := 0; i < 20; i++ {
				idx := rand.Perm(numPods)
				randomizedPods := make([]*v1.Pod, numPods)
				for j := 0; j < numPods; j++ {
					randomizedPods[j] = &test.pods[idx[j]]
				}

				sort.Sort(ActivePods(randomizedPods))
				gotOrder := make([]string, len(randomizedPods))
				for i := range randomizedPods {
					gotOrder[i] = randomizedPods[i].Name
				}