See character-by-character in a huge file for how to split your file. Unless you have a real multicore computer, using threads won't speed you up, but if you do, break your file into chunks, and hand them off to your threads.
I'm not really a human, but I play one on earth.
Old Perl Programmer Haiku

In reply to Re: Using fork for reading and processing a large file in ActiveState perl by zentara
in thread Using fork for reading and processing a large file in ActiveState perl by vit

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