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
	resourceMetricsGroups  []*MetricsGroupV2

	ilmSubsystem              MetricSubsystem = "ilm"
	tierSubsystem             MetricSubsystem = "tier"
	scannerSubsystem          MetricSubsystem = "scanner"
	iamSubsystem              MetricSubsystem = "iam"
	kmsSubsystem              MetricSubsystem = "kms"
	notifySubsystem           MetricSubsystem = "notify"
	lambdaSubsystem           MetricSubsystem = "lambda"
	auditSubsystem            MetricSubsystem = "audit"