On macOS, exiting the script requires 15 additional seconds. This is a great test case for comparing "my" vs "our".

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

$ time perl choroba.pl big1.txt big2.txt big3.txt >cpp.tmp
start
get properties: 21 secs
sort + output: 25 secs
total: 46 secs

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

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

$ time perl choroba.pl big1.txt big2.txt big3.txt >cpp.tmp
start
get properties: 21 secs
sort + output: 25 secs
total: 46 secs

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

[download]

In reply to Re^2: Rosetta Code: Long List is Long by Anonymous Monk
in thread Rosetta Code: Long List is Long by eyepopslikeamosquito

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