gistfile1.txt

group "cpu" do
  File.readlines("/proc/stat").grep(/^cpu/).each do |l|
    name, user, nice, csystem, idle, iowait, irq, softirq = l.split(/\s+/).map(&:to_i)
    total = busy + idle

    counter "busy", value: busy, mute: true
    counter "total", value: total, mute: true
    gauge "usage" do
      value("busy") / value("total") * 100
    end
  end
end