my $delay_main = Mojo::IOLoop->delay(
    get_orderb($self, $delay_orderbooks),
    get_bal($self, $delay_getbalances),
    get_openord($self, $delay_openorders)
  );
  $delay_main->wait unless $delay_main->ioloop->is_running;

  my $delay_main2 = Mojo::IOLoop->delay(
    check_bids_asks,
    find_matches,
    creaord($controller),
  );
  $delay_main2->wait unless $delay_main2->ioloop->is_running;

  $delay_main->begin;
  $delay_main2->begin;