anchor.diff:      ProcNum = ?config(proc_num, Config),
       DirsNumPerProc = ?config(dirs_num_per_proc, Config),
   
  -    [Worker | _] = ?config(op_worker_nodes, Config),
  +    [Worker | _] = Workers = ?config(op_worker_nodes, Config),
  +    wait_for_cache_dump(Workers),
  +
       {SessId1, _UserId1} =
           {?config({session_id, {<<"user1">>, ?GET_DOMAIN(Worker)}}, Config), ?config({user_id, <<"user1">>}, Config)},
       Master = self(),
  
positive.code: ls_test_base(Config) ->
      DSM = ?config(dir_size_multiplier, Config),
  
      [Worker | _] = ?config(op_worker_nodes, Config),
      {SessId1, _UserId1} =
          {?config({session_id, {<<"user1">>, ?GET_DOMAIN(Worker)}}, Config), ?config({user_id, <<"user1">>}, Config)},
  
  
negative.code: echo_loop_test_base(Config) ->
      WritesNum = ?config(writes_num, Config),
  
      [Worker | _] = Workers = ?config(op_worker_nodes, Config),
      wait_for_cache_dump(Workers),
  
      {SessId1, _UserId1} =
          {?config({session_id, {<<"user1">>, ?GET_DOMAIN(Worker)}}, Config), ?config({user_id, <<"user1">>}, Config)},
  
  