Merge pull request #14148 from prometheus/superq/more_go_metrics

Enable additional Go metrics

cmd/prometheus/main.go

@@ -42,6 +42,7 @@ import (
 	"github.com/mwitkow/go-conntrack"
 	"github.com/oklog/run"
 	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/collectors"
 	versioncollector "github.com/prometheus/client_golang/prometheus/collectors/version"
 	"github.com/prometheus/common/model"
 	"github.com/prometheus/common/promlog"
@@ -252,6 +253,18 @@ func main() {
 		newFlagRetentionDuration model.Duration
 	)
 
+	// Unregister the default GoCollector, and reregister with our defaults.
+	if prometheus.Unregister(collectors.NewGoCollector()) {
+		prometheus.MustRegister(
+			collectors.NewGoCollector(
+				collectors.WithGoCollectorRuntimeMetrics(
+					collectors.MetricsGC,
+					collectors.MetricsScheduler,
+				),
+			),
+		)
+	}
+
 	cfg := flagConfig{
 		notifier: notifier.Options{
 			Registerer: prometheus.DefaultRegisterer,