Usually downgrade middle heartbeat messages when stuff is in-range

    log_accounting(now, options);

  }

  if (stats_n_data_cells_packaged && !hibernating)

    log_notice(LD_HEARTBEAT, "Average packaged cell fullness: %2.3f%%",

  double fullness_pct = 100;

  if (stats_n_data_cells_packaged && !hibernating) {

    fullness_pct =

      100*(U64_TO_DBL(stats_n_data_bytes_packaged) /

             U64_TO_DBL(stats_n_data_cells_packaged*RELAY_PAYLOAD_SIZE)) );

  if (r > 1.0) {

    double overhead = ( r - 1.0 ) * 100.0;

    log_notice(LD_HEARTBEAT, "TLS write overhead: %.f%%", overhead);

           U64_TO_DBL(stats_n_data_cells_packaged*RELAY_PAYLOAD_SIZE));

  }

  const double overhead_pct = ( r - 1.0 ) * 100.0;

#define FULLNESS_PCT_THRESHOLD 80

#define TLS_OVERHEAD_THRESHOLD 15

  const int severity = (fullness_pct < FULLNESS_PCT_THRESHOLD ||

                        overhead_pct > TLS_OVERHEAD_THRESHOLD)

    ? LOG_NOTICE : LOG_INFO;

  log_fn(severity, LD_HEARTBEAT,

         "Average packaged cell fullness: %2.3f%%"

         "TLS write overhead: %.f%%", fullness_pct, overhead_pct);

  if (public_server_mode(options))

    rep_hist_log_circuit_handshake_stats(now);