# File lib/linux/sys/cpu.rb, line 99
    def self.cpu_stats
      cpu_stat_file = "/proc/stat"
      hash = {} # Hash needed for multi-cpu systems

      lines = IO.readlines(cpu_stat_file)

      lines.each_with_index{ |line, i|
        array = line.split
        break unless array[0] =~ /cpu/   # 'cpu' entries always on top

        # Some machines list a 'cpu' and a 'cpu0'. In this case only
        # return values for the numbered cpu entry.
        if lines[i].split[0] == "cpu" && lines[i+1].split[0] =~ /cpu\d/
          next
        end

        vals = array[1..-1].map{ |e| e = e.to_i / 100 } # 100 jiffies/sec.
        hash[array[0]] = vals
      }

      hash
    end