//Actually i check only the number of CPUs on the computer.

  function cpu_info () {
    $results = array();
    $ar_buf = array();

    $NbCPU=execute_program('top', '-d 1 -f /tmp/TestCPU && grep  "^ [0-9]" /tmp/TestCPU | grep "%" && rm -f /tmp/TestCPU');
    $NbCPUA=split("\n", $NbCPU);
    $cpus = 0;
    $cpu=array ();
    $cpu=$NbCPUA;
    foreach($cpu as $CPU) {
      $cpus += 1;
    }
    $results['cpus']=$cpus;
    return $results;
  }