Outgoing mail server performance

Ivan Voras ivoras at freebsd.org
Wed Jul 10 14:50:27 UTC 2013

On 03/07/2013 18:19, TJ wrote:
> Hi Guys,
> i am looking for some advise to help get the best out of one of my severs.
> It is a Dell PowerEdge R420,32GB,2x8c CPU and igb nics.
> Its primary purpose is to send outgoing mail it can send up to 3 millon
> emails a day and it running exim.

> I am relatively new to FreeBSD and would appreciate some pointers on
> improving the performance of this server.

Well, randomly tweaking things will not help you much.

Try running:

iostat -x 1


vmstat 1

for a non-trivial amount of time (>10 seconds) during your peek usage
(the times when you think you should be getting more performance) and
report their output.

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