diff --git a/tpl/collections/sort_test.go b/tpl/collections/sort_test.go
index 1ec95882f..cc4581921 100644
--- a/tpl/collections/sort_test.go
+++ b/tpl/collections/sort_test.go
@@ -261,3 +261,11 @@ func TestSort(t *testing.T) {
 		})
 	}
 }
+
+func BenchmarkSortMap(b *testing.B) {
+	ns := newNs()
+	m := map[string]int{"1": 10, "2": 20, "3": 30, "4": 40, "5": 50}
+	for i := 0; i < b.N; i++ {
+		ns.Sort(context.Background(), m)
+	}
+}