wat.ex

def print_mem(label) do
  case :erlang.process_info(self, :binary) do
    {:binary, bins} ->
      {size, count} = Enum.reduce(bins, {0, 0}, fn {_bid, size, count}, {s, c} -> {size + s, count + c} end)
      Logger.warn("#{label} usage in #{__MODULE__} is #{size / 1000000}mb, #{count} of them")
    _ -> :ok
  end
end