On Thu, Dec 20, 2001 at 04:04:50PM +0000, Dan Melomedman wrote:
> Henning Brauer writes:
> >> * big-todo
> > gains nothing. That's a patch for a very rare very special circumstance.
> Could you explain? I am not familiar with the patch, but it should be there
> for a reason.
It's for the rare situation where you nearly always have a high number of
not-yet-preprocessed messages ("high" does not mean a few hundred here!). In
normal cisrcumstances it doesn't help at all. More possible slows down
things a bit.
> >> * big-concurrency
> > gains nothing usually, see http://www.lamer.de/maex/creative/qmail/, link to
> That information is not on the site anymore, what's the scoop?
www.lamer.de/maex/creative/software/qmail/deliveries/
quite nicely shows a remote concurrency higher than 250 slows the process
down overall.
Of course this highly depends on a hughe number of external factors, but
meax setup is typical enough and does not suffer from bandwidth limits or
somesuch.
> I can see big-concurrency improve things for sites that want more
> simultaneous deliveries.
Unlikely.
--
* Henning Brauer, [EMAIL PROTECTED], http://www.bsws.de *
* BS Web Services, Roedingsmarkt 14, 20459 Hamburg, Germany *
Unix is very simple, but it takes a genius to understand the simplicity.
(Dennis Ritchie)
