anchor.diff:  space_update_test(Config) ->
       ?PERFORMANCE(Config, [
           {repeats, 10},
  -        {parameters, [?DOCUMENT_MODIFICATIONS_NUM(2), ?USERS_NUM(1), ?GROUPS_NUM(1)]},
           {success_rate, 95},
           {description, "Performs document updates and gathers subscription updated for provider"},
           ?UPDATE_TEST_CFG(10, 2, 1),
  
positive.code:             end, SIDs)
          ),
          {ok, erlang:system_time(milli_seconds) - Start}
      end, lists:seq(1, ProvidersCount)),
  
      lists:map(fun(Res) ->
          ?assertMatch({ok, _}, Res)
  
negative.code:     % given
      [Node | _] = ?config(oz_worker_nodes, Config),
  
      ProvidersNum = ?config(providers_num, Config),
      DocsCount = ?config(docs_num, Config),
  
      Results = utils:pmap(fun(ID) ->
  