diff --git a/test/performance/framework/service/scale_up.go b/test/performance/framework/service/scale_up.go
index bf2acaba8f5..b27f502b693 100644
--- a/test/performance/framework/service/scale_up.go
+++ b/test/performance/framework/service/scale_up.go
@@ -125,10 +125,6 @@ func ScaleUp(ctx context.Context, provider providers.ProviderInterface, controlP
 	klog.InfoS("retrieveCIDRs", "svcCIDRs", svcCIDRs)
 	svcCIDRIPv4 = svcCIDRs[0]
 	_, ipNet, _ := net.ParseCIDR(svcCIDRIPv4)
-	// 	var parsedIPs []net.IP
-	//	for _, ip := range reservedIPs {
-	//		parsedIPs = append(parsedIPs, net.ParseIP(ip))
-	//	}
 	allocator, err := ipallocator.NewCIDRAllocator(ipNet, []net.IP{net.ParseIP("10.96.0.1"), net.ParseIP("10.96.0.10")})
 
 	for _, ns := range nss {
@@ -152,7 +148,7 @@ func ScaleUp(ctx context.Context, provider providers.ProviderInterface, controlP
 				}
 
 				var fromPod *corev1.Pod
-				if testPodIndex < len(podList.Items) {
+				if testPodIndex < len(podList.Items) && actualCheckNum < cap(ch) {
 					fromPod = &podList.Items[testPodIndex]
 					testPodIndex++
 
@@ -166,7 +162,7 @@ func ScaleUp(ctx context.Context, provider providers.ProviderInterface, controlP
 				var newSvc *corev1.Service
 				var err error
 				svc.Spec.ClusterIP = clusterIP.String()
-				startTimeStamp := time.Now().Nanosecond()
+				startTimeStamp := time.Now().UnixNano()
 				newSvc, err = cs.CoreV1().Services(ns).Create(ctx, svc, metav1.CreateOptions{})
 				if err != nil {
 					if errors.IsAlreadyExists(err) {
diff --git a/test/performance/utils/exec.go b/test/performance/utils/exec.go
index e638b7155ae..c8cd0da4cda 100644
--- a/test/performance/utils/exec.go
+++ b/test/performance/utils/exec.go
@@ -100,7 +100,7 @@ func PingIP(ctx context.Context, kubeConfig *rest.Config, kc kubernetes.Interfac
 	return nil
 }
 
-func extractNanoseconds(logEntry string) (int, error) {
+func extractNanoseconds(logEntry string) (int64, error) {
 	re := regexp.MustCompile(`(\d+)\s+Status changed from (unknown|down)? to up after`)
 	matches := re.FindStringSubmatch(logEntry)
 
@@ -114,10 +114,10 @@ func extractNanoseconds(logEntry string) (int, error) {
 		return 0, fmt.Errorf("error converting nanoseconds to integer: %v", err)
 	}
 
-	return nanoseconds, nil
+	return int64(nanoseconds), nil
 }
 
-func FetchTimestampFromLog(ctx context.Context, kc kubernetes.Interface, namespace, podName, containerName string, ch chan time.Duration, startTime int) error {
+func FetchTimestampFromLog(ctx context.Context, kc kubernetes.Interface, namespace, podName, containerName string, ch chan time.Duration, startTime int64) error {
 	return wait.Poll(defaultInterval, defaultTimeout, func() (done bool, err error) {
 		req := kc.CoreV1().Pods(namespace).GetLogs(podName, &corev1.PodLogOptions{
 			Container: containerName,
diff --git a/test/performance/utils/exec_test.go b/test/performance/utils/exec_test.go
index ae6902f9150..22e93802d7b 100644
--- a/test/performance/utils/exec_test.go
+++ b/test/performance/utils/exec_test.go
@@ -26,5 +26,4 @@ func TestExtractSeconds(t *testing.T) {
 		}
 		fmt.Println(res)
 	}
-
 }