if i%(tc.totalObjectNum/tc.expectObjectNum) == 0 {
						fakePods[i].Spec.NodeName = "node-0"
					}
					data := make([]byte, 1024*2, 1024*2) // 2k labels
					rand.Read(data)
					fakePods[i].Spec.NodeSelector = map[string]string{
						"key": string(data),
					}
				}

				// build test cacher
				cacher, _, err := newTestCacher(newObjectStorage(fakePods))
				if err != nil {