Hi Nigel,
On Mittwoch, April 9, 2003, at 02:20 PM, Nigel Metheringham wrote:
>
> Are you aiming to do local or remote deliveries?
remote
> In any case exim speed is normally dominated by these factors in order
> of importance as I see them:-
> 1. Disk (or more correctly) filesystem throughput, in terms of
> operations per second rather than straight throughput. Many of
> the operations are synchronous (as required by the mail RFCs).
The SunFire V100 uses an IDE-Disk and the filesystem is xfs. Changing
things here is the last thing I want to do. This would mean to buy new
hardware. An option could be to use a RAM-disk, as you mentioned.
> 2. DNS lookups. Having a good DNS cache nearby (local network at
> least) is a must unless you are only doing local mail ops.
> Personally I put dnscache ( ) on machines.
The DNS-Server is actually not the fastest around. I will install a
bind-caching-server on a machine connected via crosslink-ethernet to
enhance this.
> 3. Network throughput
The machine is in colocation space with good connectivity. This should
be no issue.
> 4. CPU
UltraSparcII 5xx MHz. Actually, the CPU is bored by the mailings.
>
> RAM is not an issue
I do not agree... After adding an extra 512MB the machine performed
much better.
Thanks
Felix
--
Felix Havemann -Leiter Technik- w f.havemann@???
n@work Internet Informationssysteme GmbH o http://www.work.de
Spaldingstr. 160d r Tel.: +49 40 23 88 09 - 0
D-20097 Hamburg k Fax: +49 40 23 88 09 -29
