new file mode 100644

@@ -0,0 +1,33 @@

+package jsonlog

+

+import (

+	"bytes"

+	"encoding/json"

+	"io/ioutil"

+	"testing"

+	"time"

+

+	"github.com/docker/docker/pkg/timeutils"

+)

+

+func BenchmarkWriteLog(b *testing.B) {

+	var buf bytes.Buffer

+	e := json.NewEncoder(&buf)

+	testLine := "Line that thinks that it is log line from docker\n"

+	for i := 0; i < 30; i++ {

+		e.Encode(JSONLog{Log: testLine, Stream: "stdout", Created: time.Now()})

+	}

+	r := bytes.NewReader(buf.Bytes())

+	w := ioutil.Discard

+	format := timeutils.RFC3339NanoFixed

+	b.SetBytes(int64(r.Len()))

+	b.ResetTimer()

+	for i := 0; i < b.N; i++ {

+		if err := WriteLog(r, w, format); err != nil {

+			b.Fatal(err)

+		}

+		b.StopTimer()

+		r.Seek(0, 0)

+		b.StartTimer()

+	}

+}