pendingAdmissionPod *v1.Pod

	// containerMap provides a mapping from (pod, container) -> containerID
	// for all containers in a pod. Used to detect pods running across a restart
	containerMap containermap.ContainerMap

	// containerRunningSet identifies which container among those present in `containerMap`
	// was reported running by the container runtime when `containerMap` was computed.

	err := cm.cpuManager.Start(cpumanager.ActivePodsFunc(activePods), sourcesReady, podStatusProvider, runtimeService, containerMap)
	if err != nil {
		return fmt.Errorf("start cpu manager error: %v", err)
	}

	// Initialize memory manager
	if utilfeature.DefaultFeatureGate.Enabled(kubefeatures.MemoryManager) {
		containerMap, _ := buildContainerMapAndRunningSetFromRuntime(ctx, runtimeService)

	}
	activePods := func() []*v1.Pod {
		return []*v1.Pod{}
	}

	// test steady state, initialization where sourcesReady, containerMap and containerRunningSet
	// are relevant will be tested with a different flow
	err = w.Start(activePods, &sourcesReadyStub{}, containermap.NewContainerMap(), sets.New[string]())
	require.NoError(t, err)

	return w, updateChan
}