On Thu, Nov 12, 2009 at 3:33 PM, Nicolas George <nicolas.geo...@normalesup.org> wrote: > I will definitely not use polling, because polling means dozen of useless > requests and, when there is actually something, it has to wait to the next > round of polling.
That's good enough for most applications, and the "nothing to see here" requests can be handled very quickly. If you really need to use Comet, the common approach is a non-blocking server architecture. If you want to use mod_perl for it, you can read about the approach Stas used here: lxxi.org/files/spamcon07/Bekman-SMTP_Multiplexing.pdf They wrote their own server that passes off to apache when something happens, but these days you could use perlbal as your base. You can look at things like lighttpd + FastCGI too, but you'd probably have to write some C code there to avoid keeping a perl process busy. - Perrin
