Perl - basic threading example

This is perhaps in the wrong order, but to follow on from a couple of rambles lately - threading and perl.
How do you basically do this?
Here is an example:
( Read more... )

OK, that's pretty simplistic I know - but the major way I've found threads useful is for what amount to embarrassingly parallel problems, like 'connect to 200 servers, and run the same commands on each of them'. You could quite easily replace that rather trivial 'sleep' subroutine, with one that does an ssh to a host, to run a command and capture the output. (And maybe process the results, before returning them)

Also note: Perl has had threads for a while, but the module doesn't necessarily contain all the functions you need - latest version as of 2012-07-23 is 1.86 which is available from CPAN. (http://search.cpan.org/~jdhedden/threads-1.86/lib/threads.pm)

More detail: http://perldoc.perl.org/threads.html