add benchmark for LineToEvents

Signed-off-by: glightfoot <glightfoot@rsglab.com>

line_benchmark_test.go

@@ -0,0 +1,59 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"testing"
+
+	"github.com/go-kit/kit/log"
+
+	"github.com/prometheus/statsd_exporter/pkg/line"
+)
+
+func benchmarkLineToEvents(times int, b *testing.B) {
+	input := []string{
+		"foo1:2|c",
+		"foo2:3|g",
+		"foo3:200|ms",
+		"foo4:100|c|#tag1:bar,tag2:baz",
+		"foo5:100|c|#tag1:bar,#tag2:baz",
+		"foo6:100|c|#09digits:0,tag.with.dots:1",
+		"foo10:100|c|@0.1|#tag1:bar,#tag2:baz",
+		"foo11:100|c|@0.1|#tag1:foo:bar",
+		"foo.[foo=bar,dim=val]test:1|g",
+		"foo15:200|ms:300|ms:5|c|@0.1:6|g\nfoo15a:1|c:5|ms",
+		"some_very_useful_metrics_with_quite_a_log_name:13|c",
+	}
+	logger := log.NewNopLogger()
+
+	for n := 0; n < b.N; n++ {
+
+		for i := 0; i < times; i++ {
+			for _, l := range input {
+				line.LineToEvents(l, *sampleErrors, samplesReceived, tagErrors, tagsReceived, logger)
+			}
+		}
+	}
+}
+
+
+func BenchmarkLineToEvents1(b *testing.B) {
+	benchmarkLineToEvents(1, b)
+}
+func BenchmarkLineToEvents5(b *testing.B) {
+	benchmarkLineToEvents(5, b)
+}
+func BenchmarkLineToEvents50(b *testing.B) {
+	benchmarkLineToEvents(50, b)
+}