Select Code to Download

my (%by_count, %by_word);  # slow cleanup/exiting

...
real  1m2.072s
user  1m0.182s
sys   0m1.885s

our (%by_count, %by_word);  # fast cleanup/exiting

...
real  0m47.062s
user  0m45.505s
sys   0m1.549s