Another possibility beyond choroba's suggestion would be using a database. For large data structures, a database will often win out. Assuming you are committed to doing it all in memory, you could use DBD::SQLite in an in-memory context to avoid disk access issues.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re: What is the most memory efficient way to (sort) and print a hash? by kennethk
in thread What is the most memory efficient way to (sort) and print a hash? by a_salway

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