Snippet of Elixir

gistfile1.txt

Stream.interval(1000)
  |> Stream.map fn(_) -> get_memory_usage end
  |> Stream.chunk(60) # group every 60 seconds together
  |> Stream.map &( {Enum.min(&1), Enum.max(&1)} )
  |> Enum.each fn ({min, max) ->
    send_to_graphite("min_memory_usage", min)
    send_to_graphite("max_memory_usage", max)
  end