Benchmark: timing 10000 iterations of my code, their code...
   my code:  1 wallclock secs ( 0.92 usr +  0.06 sys =  0.98 CPU) @ 10193.68/s (n=10000)
their code:  0 wallclock secs ( 0.13 usr +  0.05 sys =  0.18 CPU) @ 55555.56/s (n=10000)
            (warning: too few iterations for a reliable count)

C:\network>cmp2.pl
Benchmark: timing 110000 iterations of my code, their code...
   my code:  3 wallclock secs ( 1.97 usr +  0.51 sys =  2.48 CPU) @ 44301.25/s (n=110000)
their code:  2 wallclock secs ( 1.63 usr +  0.37 sys =  2.00 CPU) @ 54917.62/s (n=110000)

C:\network>cmp2.pl
Benchmark: timing 1000000 iterations of my code, their code...
   my code: 16 wallclock secs (11.07 usr +  4.80 sys = 15.86 CPU) @ 63043.75/s (n=1000000)
their code: 18 wallclock secs (13.78 usr +  4.59 sys = 18.37 CPU) @ 54445.47/s (n=1000000)

C:\network>cmp2.pl
Benchmark: timing 2000000 iterations of my code, their code...
   my code: 33 wallclock secs (21.50 usr +  9.36 sys = 30.86 CPU) @ 64800.41/s (n=2000000)
their code: 40 wallclock secs (28.05 usr +  8.83 sys = 36.88 CPU) @ 54226.99/s (n=2000000)