Re^2: Faster and more efficient way to read a file vertically

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$ perl vert2.pl
ok 1 - same results
...
substr  5.66/s   515%   140%     --   -26%
slurp   7.69/s   736%   226%    36%     --
1..3

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use strict;
use warnings;
...
        while <$fh>;
    return $count
}

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$ perl -v

This is perl 5, version 26, subversion 0 (v5.26.0) built for x86_64-li
+nux-thread-multi
(with 1 registered patch, see perl -V for more detail)

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