You may be interested in DBI Advanced Tutorial linked from the DBI documentation. IIRC one of the comments Tim makes is "Proprietary bulk-load is almost always faster than Perl.", something you may want to factor into your profiling.

In reply to Re: How to insert 30-50K rows into MySQL DB using DBI? by marto
in thread [SOLVED]: How to insert 30-50K rows into MySQL DB using DBI? by Perl300

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