With count == 100:
Benchmark: running mine, yours, each for at least 10 CPU seconds...
      mine: 11 wallclock secs (10.88 usr +  0.00 sys = 10.88 CPU) @ 172.52/s (n=1877)
     yours: 19 wallclock secs (18.49 usr +  0.01 sys = 18.50 CPU) @ 38.76/s (n=717)
        Rate yours  mine
yours 38.8/s    --  -78%
mine   173/s  345%    --

With count == 1000:
Benchmark: running mine, yours, each for at least 30 CPU seconds...
      mine: 33 wallclock secs (31.83 usr +  0.00 sys = 31.83 CPU) @ 17.78/s (n=566)
     yours: 33 wallclock secs (32.43 usr +  0.00 sys = 32.43 CPU) @  7.68/s (n=249)
        Rate yours  mine
yours 7.68/s    --  -57%
mine  17.8/s  132%    --