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() } }