matthewrudy / cmon Goto Github PK

mypid = get_pid_from("/path/to/some.pid")
memory_consumption(mypid)

def get_pid_from(path)
    File.read(path)
end

def memory_consumption(pid)
     ps_out = `ps axo pid,rss | grep '^ #{pid}'`
    # returns something like " 2037    114600"
    # where 114600 is the number of bytes in the proces

    ps_out.split(" ").last.to_f
end