anchor.diff:      ok = ssl:close(Sock).
   
   -perf_test([
  -    {repeats, 3},
  +    {repeats, 10},
       {perf_configs, [
           [{msg_num, 1000000}]
       ]},
  -    {ct_config, [{msg_num, 1000}]}
  +    {ct_config, [{msg_num, 100}]}
   ]).
   multi_ping_pong_test(Config) ->
       % given
  
positive.code:     ok = ssl:close(Sock).
  
  -perf_test([
      {repeats, 3},
      {perf_configs, [
          [{msg_num, 100000}]
      ]},
  
negative.code:         ok = ssl:send(Sock, E),
          Pong =
              receive
                  {ssl, _, Data} ->
                      server_messages:decode_msg(Data, 'ServerMessage')
              after
                  timer:seconds(5) -> {error, timeout}
              end,
  