diff --git a/pkg/controller/statefulset/stateful_pod_control_test.go b/pkg/controller/statefulset/stateful_pod_control_test.go
index 34334c877c2..1afdd676bda 100644
--- a/pkg/controller/statefulset/stateful_pod_control_test.go
+++ b/pkg/controller/statefulset/stateful_pod_control_test.go
@@ -282,7 +282,7 @@ func TestStatefulPodControlUpdatesPodStorage(t *testing.T) {
 	pvcLister := corelisters.NewPersistentVolumeClaimLister(pvcIndexer)
 	control := NewRealStatefulPodControl(fakeClient, nil, nil, pvcLister, recorder)
 	pvcs := getPersistentVolumeClaims(set, pod)
-	volumes := make([]v1.Volume, len(pod.Spec.Volumes))
+	volumes := make([]v1.Volume, 0, len(pod.Spec.Volumes))
 	for i := range pod.Spec.Volumes {
 		if _, contains := pvcs[pod.Spec.Volumes[i].Name]; !contains {
 			volumes = append(volumes, pod.Spec.Volumes[i])
@@ -329,7 +329,7 @@ func TestStatefulPodControlUpdatePodStorageFailure(t *testing.T) {
 	pvcLister := corelisters.NewPersistentVolumeClaimLister(pvcIndexer)
 	control := NewRealStatefulPodControl(fakeClient, nil, nil, pvcLister, recorder)
 	pvcs := getPersistentVolumeClaims(set, pod)
-	volumes := make([]v1.Volume, len(pod.Spec.Volumes))
+	volumes := make([]v1.Volume, 0, len(pod.Spec.Volumes))
 	for i := range pod.Spec.Volumes {
 		if _, contains := pvcs[pod.Spec.Volumes[i].Name]; !contains {
 			volumes = append(volumes, pod.Spec.Volumes[i])
diff --git a/test/e2e/framework/resource_usage_gatherer.go b/test/e2e/framework/resource_usage_gatherer.go
index 05de2aa8ffc..e318842a829 100644
--- a/test/e2e/framework/resource_usage_gatherer.go
+++ b/test/e2e/framework/resource_usage_gatherer.go
@@ -83,9 +83,9 @@ func computePercentiles(timeSeries []ResourceUsagePerContainer, percentilesToCom
 		for name, data := range timeSeries[i] {
 			if dataMap[name] == nil {
 				dataMap[name] = &usageDataPerContainer{
-					cpuData:        make([]float64, len(timeSeries)),
-					memUseData:     make([]uint64, len(timeSeries)),
-					memWorkSetData: make([]uint64, len(timeSeries)),
+					cpuData:        make([]float64, 0, len(timeSeries)),
+					memUseData:     make([]uint64, 0, len(timeSeries)),
+					memWorkSetData: make([]uint64, 0, len(timeSeries)),
 				}
 			}
 			dataMap[name].cpuData = append(dataMap[name].cpuData, data.CPUUsageInCores)