Most likely HTTP::GHTTP. It is much faster than standard LWP, and I doubt you will beat it with any custom socket code of your own in perl. In my experience LWP::Parallel is slow and hard to use.

In reply to Re: LWP::Parallel vs. HTTP::GHTTP vs. IO::Socket by perrin
in thread LWP::Parallel vs. HTTP::GHTTP vs. IO::Socket by hacker

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