1 files changed, 30 insertions, 0 deletions
diff --git a/src/runtime/map_benchmark_test.go b/src/runtime/map_benchmark_test.go
index d37dadcb56..cf04ead115 100644
--- a/src/runtime/map_benchmark_test.go
+++ b/src/runtime/map_benchmark_test.go
@@ -483,3 +483,33 @@ func BenchmarkMapStringConversion(b *testing.B) {
 		})
 	}
 }
+
+var BoolSink bool
+
+func BenchmarkMapInterfaceString(b *testing.B) {
+	m := map[interface{}]bool{}
+
+	for i := 0; i < 100; i++ {
+		m[fmt.Sprintf("%d", i)] = true
+	}
+
+	key := (interface{})("A")
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		BoolSink = m[key]
+	}
+}
+func BenchmarkMapInterfacePtr(b *testing.B) {
+	m := map[interface{}]bool{}
+
+	for i := 0; i < 100; i++ {
+		i := i
+		m[&i] = true
+	}
+
+	key := new(int)
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		BoolSink = m[key]
+	}
+}