Dan Melomedman wrote:
>
> On Wed, Aug 01, 2001 at 09:54:41AM +0200, Henning Brauer wrote:
> > This approach has many advantages as you could easily find out through
> > reading the qmail list archives.
>
> What advantages? I haven't read the list, but can't immediately see any
> advantages.
You'll only see what you want to see...
> > > > I guess Courier is the next big thing in open MTAs.
> >
> > I beg to differ.
>
> Time will tell. Qmail hasn't been updated by Dan in how many years?
Simply, because there is no need to update qmail. I've never ever seen
such a reliable and error-free piece of software yet.
> > Nonsense. qmail-ldap is very good scalable. There are a few things that
> > could be done more effective (also applies to stock qmail); mostly queue
> > management issues. qmail-remote is no bottleneck, qmail-queue is sometimes.
> > Reduce queue i/o bandwidth is a major target, Dan has interesting ideas
> > published with his zeroseek package. In general take a look at
> > http://cr.yp.to/qmail/future.html.
> >
> > > > I wish to see a good multi-threaded open MTA in the future.
> > > > Is it too much to ask for?
> > > *SHRUG* I don't have any problems with qmail-ldap's model. It maybe fork
> > > heavy, depending on how you look at it, but no more then sendmail, if that
> > > much.
> >
> > Since when forking is bad? If forking is bad, apache is bad, too. Forking is
> > required for a clean design like qmail(-ldap). Fork() is awfully slow on
> > Solaris, but solaris is broken in many other aspects to. It's sun's fault,
> > not qmails.
>
> I didn't say fork()ing is bad. Threading is just easier on the kernel
> and VM. A process requires much more kernel and memory resources than
> does a thread.
This is whole discussion is moot. It doesn't change anything unless you
go out and prove (that means write) a "qmail" that is multithreaded and
due to that better than the qmail we right now.
> New version of Apache (currently in beta) is multi-threaded if
> you didn't know. Not only that, it has several choices of threading modules
> sysadmin can choose for the 2.0.x Apache (including the cool State
> Threads library).
Yaddayaddayadda... "Profile, don't speculate!" Dan Bernstein.
What kind of software have you written? Practice your theories!
--
Andre
