m.Set(sysCPUSteal, cpuStealVal)
	}

	// metrics-resource.go runs a job to collect resource metrics including their Avg values and
	// stores them in resourceMetricsMap. We can use it to get the Avg values of CPU idle and IOWait.
	cpuResourceMetrics, found := resourceMetricsMap[cpuSubsystem]
	if found {
		if cpuIdleMetric, ok := cpuResourceMetrics[getResourceKey(cpuIdle, nil)]; ok {
			avgVal := math.Round(cpuIdleMetric.Avg*100) / 100

	cpuLoad1Perc  MetricName = "load1_perc"
	cpuLoad5Perc  MetricName = "load5_perc"
	cpuLoad15Perc MetricName = "load15_perc"
)

var (
	resourceCollector *minioResourceCollector
	// resourceMetricsMap is a map of subsystem to its metrics
	resourceMetricsMap   map[MetricSubsystem]ResourceMetrics
	resourceMetricsMapMu sync.RWMutex
	// resourceMetricsHelpMap maps metric name to its help string
	resourceMetricsHelpMap map[MetricName]string