anchor.diff:          _ -> ok %nothing to do
       end.
   
  --spec reduce_timeslots(N::pos_integer(), State::state()) -> state().
  +-spec reduce_timeslots(N::pos_integer(), State::#state{}) -> #state{}.
   reduce_timeslots(N, State) ->
       State#state{perf_rr = rrd:reduce_timeslots(N, State#state.perf_rr),
                   perf_lh = rrd:reduce_timeslots(N, State#state.perf_lh)}.
   
  --spec integrate_values(OtherState::state(), MyState::state()) -> state().
  +-spec integrate_values(OtherState::#state{}, MyState::#state{}) -> #state{}.
   integrate_values(OtherState, MyState) ->
       MyPerfRR1 = integrate_value(OtherState#state.perf_rr, MyState#state.perf_rr),
       MyPerfLH1 = integrate_value(OtherState#state.perf_lh, MyState#state.perf_lh),
  
positive.code:     comm:send_local(DHT_Node, {get_node_details, comm:this(), [my_range]}),
      State;
  
  on({get_node_details_response, NodeDetails} = _Msg, State) ->
      ?TRACE1(_Msg, State),
      case is_leader(node_details:get(NodeDetails, my_range)) of
          false -> State;
          _ ->
              % start a new timeslot and gather stats...
              NewRound = State#state.round + 1,
              Msg = {send_to_group_member, monitor_perf, {gather_stats, comm:this(), NewRound}},
              bulkowner:issue_bulk_owner(intervals:all(), Msg),
              State1 = check_timeslots(State),
              broadcast_values(State, State1),
              State1#state{round = NewRound}
      end;
  
  on({gather_stats, SourcePid, Round} = _Msg, State) ->
  
negative.code:     msg_delay:send_local(FirstDelay, self(), {bench}),
      msg_delay:send_local(get_gather_interval(), self(), {propagate}),
      Now = os:timestamp(),
      State = #state{perf_rr = rrd:create(get_gather_interval() * 1000000, 60, {timing, us}, Now),
                     perf_lh = rrd:create(get_gather_interval() * 1000000, 60, {timing, count}, Now)},
      {State, State}.
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % Miscellaneous
  