From 5710165c4bbc4addf0d9eb14e4924dfd0ff5ace1 Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@victoriametrics.com>
Date: Thu, 21 Jul 2022 18:42:53 +0300
Subject: [PATCH] Add a benchmark for addExtraLabels function

---
 push_test.go        |  2 +-
 push_timing_test.go | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 push_timing_test.go

diff --git a/push_test.go b/push_test.go
index ec5734e..5eef7ed 100644
--- a/push_test.go
+++ b/push_test.go
@@ -26,7 +26,7 @@ bar{foo="bar",a="x"} 2
 foo 1
 # some counter
 # type foobar counter
-foobar{a="b",c="d"} 4`, `x="y"`, `foo{x="y"} 1
+	  foobar{a="b",c="d"} 4`, `x="y"`, `foo{x="y"} 1
 # some counter
 # type foobar counter
 foobar{x="y",a="b",c="d"} 4
diff --git a/push_timing_test.go b/push_timing_test.go
new file mode 100644
index 0000000..8316143
--- /dev/null
+++ b/push_timing_test.go
@@ -0,0 +1,20 @@
+package metrics
+
+import (
+	"testing"
+)
+
+func BenchmarkAddExtraLabels(b *testing.B) {
+	extraLabels := `foo="bar"`
+	src := []byte(`foo 1
+bar{baz="x"} 2
+`)
+	b.ReportAllocs()
+	b.SetBytes(1)
+	b.RunParallel(func(pb *testing.PB) {
+		var dst []byte
+		for pb.Next() {
+			dst = addExtraLabels(dst[:0], src, extraLabels)
+		}
+	})
+}