On Mon, 12 Jul 1999, Kevin J Collins wrote:
> Hopefully a simple question. Would there be any benefit to
> exim's performance if I add a 2nd cpu to my mail servers (and,
> upgrading the linux to support SMP)? Or would I be better
> spending the money on more memory/gigabit ethernet card/holiday
> abroad ...
>
> (Currently running exim 2.12 on a Dell 4300 w. a single pentium
> II/450MHz cpu).
Is the bottle-neck on incoming or outgoing mail ?
Assuming that you aren't delivering via pipes I wouldn't have expected
CPU to be the problem. Disk performance would be my guess at the first
bottleneck.
Of course a second CPU on an existing multi-processor motherboard
might be cheaper than a RAID controller or array.
(I'm running exim on a 40MHz Sun IPX with 64Mb RAM and 10Mb ethernet
that also provides interactive service and the machine still keeps
up with our mail, so I'm not well qualified to comment.)
Dr. Andrew C. Aitchison Computer Officer, DPMMS, Cambridge
A.C.Aitchison@??? http://www.dpmms.cam.ac.uk/~werdna
