docs: public void schedulePeriodicStats() {
          Runnable statsPrinter = new Runnable() {
              @Override
              public void run() { printStatistics(); }
          };
          m_scheduler.scheduleWithFixedDelay(statsPrinter,
                  m_config.displayinterval,
                  m_config.displayinterval,
                  TimeUnit.SECONDS);
      }