}
	s.stats[bucket] = stats
}

type inOutBytes struct {
	In  uint64
	Out uint64
}

// Return S3 total input bytes for input bucket
func (s *bucketConnStats) getS3InOutBytes() map[string]inOutBytes {
	s.RLock()
	defer s.RUnlock()

	if len(s.stats) == 0 {
		return nil
	}

	bucketStats := make(map[string]inOutBytes, len(s.stats))
	for k, v := range s.stats {