I suspect that this will be roughly twice as fast as yours: 

map { join ".", unpack "C*", $_ }
sort
map { pack "C*", split /\./, $_ }
@ips;

[download]
and Benchmark says... 
          Rate   slow faster    tye
  slow 0.575/s     --   -75%   -83%
faster  2.34/s   307%     --   -32%
   tye  3.45/s   501%    48%     --

[download]
Drat, only 50% faster. (: Probably because the S. Transform is specially optimized these days.

Full code in HTML comments at top of node so "download code" will fetch it for you.

                - tye

In reply to Re^8: Anyone use "xor" in conditionals? (faster) by tye
in thread Anyone use "xor" in conditionals? by bsb

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