SMP Machines

[Pete russell]

Thanks for the replies - I will try running 8 process (4 per CPU)
initially and see how that goes. We are not a hugely busy site, and our
p200 Domino R5/Symantec AV currently all in and outbound traffic, so
this dual cpu machine should be fine - just want to make sure I don't
overload it with too many processes.

Will be plugging it in on Friday.

Thanks for the tips on testing - the dev guy at work wrote a php script
that runs from another test machine, and specifies an amount of emails
to repeatedly send by offering a ?numRepeat=xx on the url. This machine
also has a faked MX pointing to my MS box.

If anyone is interested, we are going to turn this into a form based
script tomorrow, allowing tester to choose and include a bunch of copied
spam email bodies, which could send a combination of say 10 good email
and 10 spams, and repeat 10 times or similar?

Not a thorough load test by any means, but its something to see if your
machine will accept mail not addressed to you, and a few big hits at
once.


Thanks again
Pete


-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
Behalf Of Tony Finch
Sent: Wednesday, 5 November 2003 9:44 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: SMP Machines

Julian Field <mailscanner at ECS.SOTON.AC.UK> wrote:
>At 00:48 05/11/2003, you wrote:
>>Hi there, i have an old NEC 5800 dual P200 - i know this is a very old
>>machine, but i will use 3 of them if i have to - and was wondering if
i
>>should make any changes to the MailScanner, SpamAssassin confi to take
>>advantage?
>>
>>I know i can change the amount of child process, if i change this
figure
>>from say, 5 to 4, will this mean i have 4 process PER CPU ? Will
>>MailScanner already be using the 2 CPUs, without mne changing
anything?
>
>It means the total number of child processes. You can often run 4 or 5
per
>CPU quite well, giving you
>         Max Children = 8
>or possibly 10.

So long as you have enough memory -- allow 25-30 MB per MailScanner
process.

Tony.
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