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Personally, if the application permitted it, I'd go for:

sub ords{ sprintf "%02x " x length($_[0]), unpack 'C*', $_[0]; }
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In addition to being a bit quick, I find the shorter dumps using hex more useful.

If I was really after ultimate speed and the strings to be dumped were of some reasonable maximum length, then I might consider using:

{
    my $t = '%02x ' x 1000; 
    sub ords2{ 
        sprintf substr( $t, 0, length $_[0]*5 ), unpack 'C*', $_[0]; 
    }
}
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With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

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