anchor.diff:  
        {group, with_parallelism_bypass_pid_encoding, []},
   
  +     {group, with_partisan_bypass_pid_encoding, []},
  +
        {group, with_disterl, [parallel]},
   
        {group, with_channels, [parallel]},
  
positive.code:     parallelism() ++ [{channels, ?CHANNELS}] ++ Config;
  init_per_group(with_parallelism_bypass_pid_encoding, Config) ->
      parallelism() ++ [{channels, ?CHANNELS}, {pid_encoding, false}] ++ Config;
  init_per_group(with_no_channels, Config) ->
      [{parallelism, 1}, {channels, []}] ++ Config;
  init_per_group(with_causal_labels, Config) ->
  
negative.code:       [performance_test]},
  
       {with_disterl, [],
        [performance_test]},
  
       {with_partisan_bypass_pid_encoding, [],
        [performance_test]},
       
       {with_channels, [],
  