anchor.diff:  
   
   run(delete, KeyGen, _ValueGen, #state{check_integrity = CI, id = Id, concurrent = Concurrent} = State) ->
  -    Key = keygen_global_uniq(CI, Id, Concurrent, KeyGen), 
  +    Key = keygen_global_uniq(CI, Id, Concurrent, KeyGen),
       {NextUrl, S2} = next_url(State),
       case do_delete(url(NextUrl, Key, State#state.path_params)) of
           {not_found, _Url} ->
  
positive.code:     Base - Diff.
  
  run(get, KeyGen, _ValueGen, #state{check_integrity = CI, id = Id, concurrent = Concurrent} = State) ->
      Key = keygen_global_uniq(CI, Id, Concurrent, KeyGen), 
      {NextUrl, S2} = next_url(State),
      case do_get(url(NextUrl, Key, State#state.path_params)) of
          {not_found, _Url} ->
  
negative.code:             BaseUrlsIndex = random:uniform(tuple_size(BaseUrls))
      end,
      CI = basho_bench_config:get(
             check_integrity, false), %% should be false when doing benchmark
      Concurrent = basho_bench_config:get(concurrent, 0),
      {ok, #state { base_urls = BaseUrls,
                    base_urls_index = BaseUrlsIndex,
  