return 0, 0, 0, time.Time{}, err
	}

	usageRatio, utilization, rawUtilization, err := metricsclient.GetResourceUtilizationRatio(metrics, requests, targetUtilization)
	if err != nil {
		return 0, 0, 0, time.Time{}, err
	}

	scaleUpWithUnready := len(unreadyPods) > 0 && usageRatio > 1.0
	if !scaleUpWithUnready && len(missingPods) == 0 {
		if math.Abs(1.0-usageRatio) <= c.tolerance {

// and calculates the ratio of desired to actual usage
// (returning that and the actual usage)
func GetMetricUsageRatio(metrics PodMetricsInfo, targetUsage int64) (usageRatio float64, currentUsage int64) {
	metricsTotal := int64(0)
	for _, metric := range metrics {
		metricsTotal += metric.Value
	}

	currentUsage = metricsTotal / int64(len(metrics))