You should realize that this only affects the speed of building the modules, not the speed of the modules once they're installed. It's not a flag telling the compiler or perl anything, it's just telling make it should try to run more than one thing in parallel if possible. So if you get it wrong, you'll just spend a little extra time watching messages fly by from the CPAN shell.

In reply to Re: Configuring CPAN (MAKE) with P4 Hyper Threading Processor by sgifford
in thread Configuring CPAN (MAKE) with P4 Hyper Threading Processor by awohld

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