From a78cf81627947e1a9cde40dc7dac4f446f9f49cf Mon Sep 17 00:00:00 2001
From: Matej Gera <matejgera@gmail.com>
Date: Fri, 29 Jul 2022 14:36:51 +0200
Subject: [PATCH] Add benchmark for deep copy

Signed-off-by: Matej Gera <matejgera@gmail.com>
---
 pkg/store/labelpb/label_test.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pkg/store/labelpb/label_test.go b/pkg/store/labelpb/label_test.go
index bf57b801ef..768c49f907 100644
--- a/pkg/store/labelpb/label_test.go
+++ b/pkg/store/labelpb/label_test.go
@@ -209,6 +209,18 @@ func BenchmarkTransformWithAndWithoutCopy(b *testing.B) {
 			ret = ZLabelsToPromLabels(lbls)
 		}
 	})
+	b.Run("ZLabelsToPromLabelsWithDeepCopy", func(b *testing.B) {
+		b.ReportAllocs()
+		lbls := make([]ZLabel, num)
+		for i := 0; i < num; i++ {
+			lbls[i] = ZLabel{Name: fmt.Sprintf(fmtLbl, i), Value: fmt.Sprintf(fmtLbl, i)}
+		}
+		b.ResetTimer()
+
+		for i := 0; i < b.N; i++ {
+			ret = ZLabelsToPromLabels(DeepCopy(lbls))
+		}
+	})
 }
 
 func TestSortZLabelSets(t *testing.T) {