diff --git a/pkg/describe/describe.go b/pkg/describe/describe.go
index 924e745b0..d88095ac2 100644
--- a/pkg/describe/describe.go
+++ b/pkg/describe/describe.go
@@ -871,7 +871,7 @@ func describePod(pod *corev1.Pod, events *corev1.EventList) (string, error) {
 			}
 		}
 		describeVolumes(pod.Spec.Volumes, w, "")
-		w.Write(LEVEL_0, "QoS Class:\t%s\n", qos.PodQOSClass(pod))
+		w.Write(LEVEL_0, "QoS Class:\t%s\n", qos.GetPodQOS(pod))
 		printLabelsMultiline(w, "Node-Selectors", pod.Spec.NodeSelector)
 		printPodTolerationsMultiline(w, "Tolerations", pod.Spec.Tolerations)
 		describeTopologySpreadConstraints(pod.Spec.TopologySpreadConstraints, w, "")
diff --git a/pkg/util/qos/qos.go b/pkg/util/qos/qos.go
index 87183a095..16a8846a7 100644
--- a/pkg/util/qos/qos.go
+++ b/pkg/util/qos/qos.go
@@ -28,20 +28,20 @@ func isSupportedQoSComputeResource(name core.ResourceName) bool {
 	return supportedQoSComputeResources.Has(string(name))
 }
 
-// PodQOSClass returns the QoS class of a pod persisted in the PodStatus.
-// If QOSClass is empty, it returns value of GetPodQOS() which computes pod's QoS class.
-func PodQOSClass(pod *core.Pod) core.PodQOSClass {
+// GetPodQOS returns the QoS class of a pod persisted in the PodStatus.QOSClass field.
+// If PodStatus.QOSClass is empty, it returns value of ComputePodQOS() which evaluates pod's QoS class.
+func GetPodQOS(pod *core.Pod) core.PodQOSClass {
 	if pod.Status.QOSClass != "" {
 		return pod.Status.QOSClass
 	}
-	return GetPodQOS(pod)
+	return ComputePodQOS(pod)
 }
 
-// GetPodQOS returns the QoS class of a pod.
+// ComputePodQOS evaluates the list of containers to determine a pod's QoS class. This function is expensive.
 // A pod is besteffort if none of its containers have specified any requests or limits.
 // A pod is guaranteed only when requests and limits are specified for all the containers and they are equal.
 // A pod is burstable if limits and requests do not match across all containers.
-func GetPodQOS(pod *core.Pod) core.PodQOSClass {
+func ComputePodQOS(pod *core.Pod) core.PodQOSClass {
 	requests := core.ResourceList{}
 	limits := core.ResourceList{}
 	zeroQuantity := resource.MustParse("0")