diff --git a/broker.go b/broker.go
index dd01e4ef1..36a522c26 100644
--- a/broker.go
+++ b/broker.go
@@ -180,7 +180,7 @@ func (b *Broker) Open(conf *Config) error {
 		b.requestsInFlight = metrics.GetOrRegisterCounter("requests-in-flight", conf.MetricRegistry)
 		// Do not gather metrics for seeded broker (only used during bootstrap) because they share
 		// the same id (-1) and are already exposed through the global metrics above
-		if b.id >= 0 {
+		if b.id >= 0 && !metrics.UseNilMetrics {
 			b.registerMetrics()
 		}
 
diff --git a/broker_test.go b/broker_test.go
index 2fa40ceb4..4f8986ce5 100644
--- a/broker_test.go
+++ b/broker_test.go
@@ -1041,3 +1041,36 @@ func validateBrokerMetrics(t *testing.T, broker *Broker, mockBrokerMetrics broke
 	// Run the validators
 	metricValidators.run(t, broker.conf.MetricRegistry)
 }
+
+func BenchmarkBroker_Open(b *testing.B) {
+	mb := NewMockBroker(nil, 0)
+	broker := NewBroker(mb.Addr())
+	// Set the broker id in order to validate local broker metrics
+	broker.id = 0
+	metrics.UseNilMetrics = false
+	conf := NewTestConfig()
+	conf.Version = V1_0_0_0
+	for i := 0; i < b.N; i++ {
+		err := broker.Open(conf)
+		if err != nil {
+			b.Fatal(err)
+		}
+		broker.Close()
+	}
+}
+
+func BenchmarkBroker_No_Metrics_Open(b *testing.B) {
+	mb := NewMockBroker(nil, 0)
+	broker := NewBroker(mb.Addr())
+	broker.id = 0
+	metrics.UseNilMetrics = true
+	conf := NewTestConfig()
+	conf.Version = V1_0_0_0
+	for i := 0; i < b.N; i++ {
+		err := broker.Open(conf)
+		if err != nil {
+			b.Fatal(err)
+		}
+		broker.Close()
+	}
+}
diff --git a/functional_client_test.go b/functional_client_test.go
index bc4715dc4..949508c75 100644
--- a/functional_client_test.go
+++ b/functional_client_test.go
@@ -1,4 +1,5 @@
-//+build functional
+//go:build functional
+// +build functional
 
 package sarama
 
diff --git a/functional_consumer_group_test.go b/functional_consumer_group_test.go
index 5fb063bf5..45f6c540f 100644
--- a/functional_consumer_group_test.go
+++ b/functional_consumer_group_test.go
@@ -1,4 +1,5 @@
-//+build functional
+//go:build functional
+// +build functional
 
 package sarama
 
diff --git a/functional_consumer_test.go b/functional_consumer_test.go
index 6364f5b95..2f59183f0 100644
--- a/functional_consumer_test.go
+++ b/functional_consumer_test.go
@@ -1,4 +1,5 @@
-//+build functional
+//go:build functional
+// +build functional
 
 package sarama
 
diff --git a/functional_offset_manager_test.go b/functional_offset_manager_test.go
index 5d7f65663..2d983f287 100644
--- a/functional_offset_manager_test.go
+++ b/functional_offset_manager_test.go
@@ -1,4 +1,5 @@
-//+build functional
+//go:build functional
+// +build functional
 
 package sarama
 
diff --git a/functional_producer_test.go b/functional_producer_test.go
index 74f9682a2..63bf02110 100644
--- a/functional_producer_test.go
+++ b/functional_producer_test.go
@@ -1,4 +1,5 @@
-//+build functional
+//go:build functional
+// +build functional
 
 package sarama
 
diff --git a/functional_test.go b/functional_test.go
index 7f10a9eea..6e9484740 100644
--- a/functional_test.go
+++ b/functional_test.go
@@ -1,4 +1,5 @@
-//+build functional
+//go:build functional
+// +build functional
 
 package sarama
 
diff --git a/go.mod b/go.mod
index ccbd8e2d1..ed9bf16d4 100644
--- a/go.mod
+++ b/go.mod
@@ -21,7 +21,6 @@ require (
 	github.com/xdg/stringprep v1.0.3 // indirect
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e // indirect
 	golang.org/x/net v0.0.0-20210614182718-04defd469f4e
-	golang.org/x/text v0.3.6 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
diff --git a/go.sum b/go.sum
index a49776049..508c3ae30 100644
--- a/go.sum
+++ b/go.sum
@@ -66,8 +66,6 @@ golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210427231257-85d9c07bbe3a h1:njMmldwFTyDLqonHMagNXKBWptTBeDZOdblgaDsNEGQ=
-golang.org/x/net v0.0.0-20210427231257-85d9c07bbe3a/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210614182718-04defd469f4e h1:XpT3nA5TvE525Ne3hInMh6+GETgn27Zfm9dxsThnX2Q=
 golang.org/x/net v0.0.0-20210614182718-04defd469f4e/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=