The threaded model generally has significantly worse performance because of the way Perl threads work. On the mod_perl list, we recommend prefork for those that can use it (i.e. everyone but Win32).

More likely, LWP::Parallel::UserAgent is just not very fast. I suggest you try using a fast one like HTTP::MHTTP or HTTP::GHTTP and switching to a forking model where you fork (yes, it's okay to fork from mod_perl) and write the responses back to a file or database. A prefork model is also possible but harder to code all the IPC stuff for.

In reply to Re: Parallel HTTP requests under mod_perl2 by perrin
in thread Parallel HTTP requests under mod_perl2 by StoneTable

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