in reply to Re^5: Sorting IP addresses, lots of them, quickly
in thread Sorting IP addresses, lots of them, quickly

I wonder, is this sorting routine truly dependant on the regexp mentioned in the documentation

Yes, it is, because Sort::Key::IPv4 internally converts the IP addresses to 32 bit unsigned integers that can be sorted very fast.

For OIDs, you can use Sort::Key::Natural that even if it is not going to be as fast as ipv4sort, would probably outperform any other pure perl method.

In Section Cool Uses for Perl