anchor.diff:          false -> State;
           _ ->
               % start a new timeslot and gather stats...
  -            NewRound = Leader#state.round + 1,
  -            Msg = {send_to_group_member, monitor_perf, {gather_stats, comm:this(), NewRound}},
  +            NewId = util:get_global_uid(),
  +            Msg = {send_to_group_member, monitor_perf, {gather_stats, comm:this(), NewId}},
               bulkowner:issue_bulk_owner(intervals:all(), Msg),
               Leader1 = check_timeslots(Leader),
               broadcast_values(Leader, Leader1),
  -            {AllNodes, Leader1#state{round = NewRound}}
  +            {AllNodes, Leader1#state{id = NewId}}
       end;
   
  -on({gather_stats, SourcePid, Round} = _Msg, State) ->
  -    ?TRACE1(_Msg, State),
  -    This = comm:this_with_cookie({SourcePid, Round}),
  +on({gather_stats, SourcePid, Id} = _Msg, State) ->
  +    ?TRACE1(_Msg, State),
  +    This = comm:this_with_cookie({SourcePid, Id}),
       comm:send_local(pid_groups:get_my(monitor),
                       {get_rrds, [{?MODULE, "read_read"}, {dht_node, "lookup_hops"}], This}),
       State;
   
  -on({{get_rrds_response, DBs}, {SourcePid, Round}} = _Msg, State) ->
  +on({{get_rrds_response, DBs}, {SourcePid, Id}} = _Msg, State) ->
       ?TRACE1(_Msg, State),
       DataL = lists:flatten(
                 [begin
  
positive.code: -export([start_link/1, init/1, on/2, check_config/0]).
  
  -record(state,
          {round   = 0                         :: non_neg_integer(),
           perf_rr = ?required(state, perf_rr) :: rrd:rrd(),
           perf_lh = ?required(state, perf_lh) :: rrd:rrd()
          }).
  
negative.code:     msg_delay:send_local(FirstDelay, self(), {bench}),
      msg_delay:send_local(get_gather_interval(), self(), {propagate}),
      Now = os:timestamp(),
      State = #state{id = util:get_global_uid(),
                     perf_rr = rrd:create(get_gather_interval() * 1000000, 60, {timing, ms}, Now),
                     perf_lh = rrd:create(get_gather_interval() * 1000000, 60, {timing, count}, Now)},
      {State, State}.
  
  