bucketStats[k] = inOutBytes{
			In:  v.s3InputBytes,
			Out: v.s3OutputBytes,
		}
	}
	return bucketStats
}

// Return S3 total input/output bytes for each
func (s *bucketConnStats) getBucketS3InOutBytes(buckets []string) map[string]inOutBytes {
	s.RLock()
	defer s.RUnlock()

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

	bucketStats := make(map[string]inOutBytes, len(buckets))