Benchmark: timing 250000 iterations of one, two...
       one:  1 wallclock secs ( 0.26 usr +  0.00 sys =  0.26 CPU) @ 961538.46/s (n=250000)
            (warning: too few iterations for a reliable count)
       two:  1 wallclock secs ( 0.46 usr +  0.00 sys =  0.46 CPU) @ 543478.26/s (n=250000)

Benchmark: timing 2000000 iterations of one, two...
       one:  2 wallclock secs ( 2.06 usr +  0.00 sys =  2.06 CPU) @ 970873.79/s (n=2000000)
       two:  4 wallclock secs ( 3.68 usr +  0.00 sys =  3.68 CPU) @ 543478.26/s (n=2000000)