Only you know what size machine you need. I have never used 'Parallel::ForkManager', but I have used 'fork' on a lot of different *nix machines. So I'll give you some ideas to look at:
- What does 'top' tell you when you run (1..10) scripts.
- How are you connected to the Internet. If you don't have enough bandwidth you can add 1024 cores and it won't help.
- How often do you have to check the URLs? Too often and you may be bounced by the URL's admins.
I've found that adding more than 4 forks per core starts slowing things down.
But only you will know that after testing current performance.
Now if you really want that new 4-core machine, and you want our premission, then I'm all for it :-)
"Well done is better than well said." - Benjamin Franklin
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