On Tue, 19 Sep 2006, Ask Bj?rn Hansen wrote:
> On Sep 18, 2006, at 11:44 PM, [EMAIL PROTECTED] wrote:
>
> > I am wondering if someone else has similar hardware, what kind of
> > a userbase they are supporting with it. Similarly, if someone is
> > supporting about 10,000 users, what hardware they are using.
>
> What kind of users? Some users will get a few mails a day, others
> thousands. If they are similar to your existing users you'll just get a few
> hundred thousand mails per day (~3-9/sec depending on how they are
> distributed).
I am already getting 15,000 transactions/day. Most of the traffic
is during the 12 hours of the day covering business hours and early
evening. These are mostly business users.
> SpamAssassin and anti-virus scanning takes vastly more resources than doing
> the smtp, so those are more likely to be your bottlenecks.
I am very selective about what I run resource hungry processes for
- not everything gets scanned. But when there are many simulataneous
connections (I have a connection limit of 40), and some resource hungry
cron jobs run at the same time, I can see a load average of 1.00. Though I
think that the system could handle things most of the time, I wonder how
high the load average might be with 10-15 times the potential. A load
average of 10 might slow down some connections for a few minutes, but
hopefully it wouldn't be too serious.
> For some users the total load has actually been *less* than with qmail because
> qpsmtpd would filter more of the mail before it came to SA and virus
> processing.
Good point.
