Multiprocessor system VS one processor system

[Olaf Hoyer]

On Thu, 18 Mar 2004, Simon wrote:

>
> Few million local emails is about 23 a second, I don't see that as a big problem
> on dual Xeon server given the MTA is written properly. Of course you did not
> mention anything like virus/spam scanning. Simple local delivery is not CPU
> intensive. Few million mailboxes is nothing more than several files on a
> filesystem and few config entries in a database per mailbox, again not a problem.

Well, sendmail with some real crude tweaks, given that the user data
do not exist as plain ascii file, but with a database hook to also to
determine where the data/usermapping with virtual domains/redirect shall
be pumped into the POP-server-storage vie nfs.


>
> The ServerWorks chipsets have been extremely stable in my experience.
Yes, ServerWorks are nice, have some Intels sitting around here that
also do well, regarding the implementation of the manufacturer you buy
from.


> Keep in mind, the cost of Sun hardware, especially going several years back,
> is extremely high. The idea of a cost-effective server that doesn't cost 10s
> or even 100s of thousands of dollars is very appealing to small businesses.
> Of course, there is no Intel server that is as scalable as latest Sun server,
> but that is not what most FreeBSD users are after, at least I don't think so.
>
Yes, in the typical "Small ISP" you are well off with IA32 boxes, which
are in most cases oversized still then.

In our setup, when it comes to big numbers, you need big iron, so that
you need not to administer some big heap of servers.
(The old question of bang per buck)

I only wanted to make clear, that (given that reasonable load exists)
you need appropriate tools to do your work...


Olaf

-- 
Olaf Hoyer        ohoyer at gaff.hhhr.ision.net
Fuerchterliche Erlebniss geben zu raten,
ob der, welcher sie erlebt, nicht etwas Fuerchterliches ist.
(Nietzsche, Jenseits von Gut und Boese)