Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

metric/series_grouper_test.go

@@ -0,0 +1,37 @@
+package metric
+
+import (
+	"hash/maphash"
+	"testing"
+	"time"
+)
+
+var m = New(
+	"mymetric",
+	map[string]string{
+		"host":        "host.example.com",
+		"mykey":       "myvalue",
+		"another key": "another value",
+	},
+	map[string]interface{}{
+		"f1": 1,
+		"f2": 2,
+		"f3": 3,
+		"f4": 4,
+		"f5": 5,
+		"f6": 6,
+		"f7": 7,
+		"f8": 8,
+	},
+	time.Now(),
+)
+
+var result uint64
+
+var hashSeed = maphash.MakeSeed()
+
+func BenchmarkGroupID(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		result = groupID(hashSeed, m.Name(), m.TagList(), m.Time())
+	}
+}