From b77ed204f6a3e4104876278cb8cc4cee4eb09564 Mon Sep 17 00:00:00 2001
From: "Stephen McQuay (smcquay)" <smcquay@wish.com>
Date: Fri, 19 Jan 2018 15:14:26 -0800
Subject: [PATCH] Add a benchmark for concurrent counter increments

---
 prometheus/benchmark_test.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/prometheus/benchmark_test.go b/prometheus/benchmark_test.go
index faad39b..4a05721 100644
--- a/prometheus/benchmark_test.go
+++ b/prometheus/benchmark_test.go
@@ -183,3 +183,17 @@ func BenchmarkHistogramNoLabels(b *testing.B) {
 		m.Observe(3.1415)
 	}
 }
+
+func BenchmarkParallelCounter(b *testing.B) {
+	c := NewCounter(CounterOpts{
+		Name: "benchmark_counter",
+		Help: "A Counter to benchmark it.",
+	})
+	b.ReportAllocs()
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			c.Inc()
+		}
+	})
+}