@ram_usage = !is_running ? [] : Watchdog.get_ve_counters_queue('_memory', @virtual_server.id).map do |counter|
      ram = counter[:held].to_i / (1024 * 1024)
      @ram_max = ram if ram > @ram_max
      { 'time' => counter[:created_at].min, 'usage' => ram }
    end