diff --git a/Makefile b/Makefile
index b2e4f39..2ac133b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,5 @@
 test:
-	@go run github.com/onsi/ginkgo/ginkgo -keepGoing -progress -timeout 1m -race --randomizeAllSpecs --randomizeSuites
+	go run github.com/onsi/ginkgo/ginkgo -keepGoing -progress -timeout 1m -race --randomizeAllSpecs --randomizeSuites
+
+bench:
+	go test -bench=. -run=Benchmark
diff --git a/bench_test.go b/bench_test.go
new file mode 100644
index 0000000..3633c29
--- /dev/null
+++ b/bench_test.go
@@ -0,0 +1,41 @@
+package buffer_test
+
+import (
+	"testing"
+
+	"github.com/globocom/go-buffer"
+)
+
+func BenchmarkBuffer(b *testing.B) {
+	noop := buffer.FlusherFunc(func([]interface{}) {})
+
+	b.Run("push only", func(b *testing.B) {
+		sut := buffer.New(
+			buffer.WithSize(uint(b.N)+1),
+			buffer.WithFlusher(noop),
+		)
+		defer sut.Close()
+
+		for i := 0; i < b.N; i++ {
+			err := sut.Push(i)
+			if err != nil {
+				b.Fail()
+			}
+		}
+	})
+
+	b.Run("push and flush", func(b *testing.B) {
+		sut := buffer.New(
+			buffer.WithSize(1),
+			buffer.WithFlusher(noop),
+		)
+		defer sut.Close()
+
+		for i := 0; i < b.N; i++ {
+			err := sut.Push(i)
+			if err != nil {
+				b.Fail()
+			}
+		}
+	})
+}