$ time perl mandelbrot1.pl 16000 > m1.pbm

  real 8m38.383s   ( Perl code by Mykola Zubach, threads only )

$ time perl mandelbrot2.pl 16000 > m2.pbm

  real 3m52.245s   ( MCE supporting threads and processes )

$ time perl mandelbrot3.pl 16000 > m3.pbm

  real    1.974s   ( MCE + Inline::C, mind boggling )