Hi,
As we have seen the amount of incoming mail increase by 25% in the last
few months, our customer is willing to invest in an extra mail relay.
I was thinking about a system with Sun's T1 chipset, (like the sunfire
T1000), I'm thinking the threaded nature of this chipset would work well
with the type of computing going on on a typical mailrelay (lots of
processes all doing relatively short bursts of cpu) ? Any ideas ?
Tom.
Martin Hepworth <[EMAIL PROTECTED]>
27/09/2006 11:33
To: [EMAIL PROTECTED]
cc: users@spamassassin.apache.org
Subject: Re: performance question
[EMAIL PROTECTED] wrote:
> Hi,
>
> I would like your opinion if our mailrelay is properly tuned:
>
> I have a mailrelay (sendmail / mimedefang / spamassassin with fuzzyocr,
> razor and dcc) running on a Sun V20Z with 6 GB Ram and 2 AMD 1.8Ghz
cpu's
> on Solaris 10.
> it currently handles 95000 mails per day (most of it spam ofcourse).
Load
> is currently constantly around 6 - 7, average scan time of a mail is
about
> 7 seconds. %io according to top is almost 0.
>
> mimedefang spool is running on a ramdisk, and all the software is at the
> most recent version
>
> Does this seem like a normal load ? I had hoped that our upgrade from
> solaris 9 to solaris 10 would have drastically improved the number of
> emails the system could process (or lower the load for the same amout of
> emails), but I don't notice a major improvement.
>
> I'd appreciate your input on this matter.
>
> regards,
> tom.
>
>
Don't confuse the load average figure with 'overloaded' systems.
the load figure just means X processes are waiting for some resource
(CPU or disk or network or....).
Depending on your setup you may find it useful to use milter-ahead (or a
free equivalent) to drop email to unknown users before you send it off
to spamassassin etc for further processing. I drop over 2/3rds of my
traffic that way.
Given it's only 7 seconds to scan the email I'd says your system is more
than handling the traffic being processed.
--
Martin Hepworth
Senior Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300
**********************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.
This footnote confirms that this email message has been swept
for the presence of computer viruses and is believed to be clean.
**********************************************************************
