maybe http://stackoverflow.com/questions/1533067/what-is-the-best-way-to-gunzip-files-with-perl, its says PerlIO::via::gzip employs the tricks available to make IO::Uncompress::Gunzip perform the fastest

In reply to Re: Parsing a large file 80GB .gz file and making an output file with specifice columns in this original file. by Anonymous Monk
in thread Parsing a large file 80GB .gz file and making an output file with specifice columns in this original file. by pillaipraveen

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