module Perus::Pinger
    class CPU < Command
        description 'Measures overall system CPU usage as a percentage on the
                     client.'
        metric!

        def run
            if darwin?
                percent = 100 - shell('iostat dxxvdfs -n 0').split("\n")[2].split[2].to_i
            else
                percent = shell("grep 'cpu ' /proc/stat | awk '{print (1 - ($5 / ($2+$3+$4+$5+$6+$7+$8)))*100}'")
            end
            
            {cpu_all: percent.to_f}
        end
    end
end