On Mon, 2011-10-03 at 12:08 +0200, Simon Loewenthal wrote:
> Hi there,
>
> I have to set-up a few low power SA boxes. Currently I'm used to
> using Intel Xeon 2.6Ghz with 16Gb of memory, but these proposed boxes
> are small. I won't buy one unless I know it can do the job. I know the
> figures below are tiny, but I don't know the Intel Atoms and what they
> can really do.
>
> # of active Email addresses (excluding Email aliases) : 80
> # of messages (including rejected) appox 3,500 daily
> running : Debian/ SA 3.3.1 and spamass-milter (with MTA postfix,
> clamav-milter).
>
I've no direct experience of Intel Atom boxes, but here are the stats
scraped out of my maillogs with a gawk script:
Min Avg Max
Scan times: 0.9 ( 3420 bytes) 3.6 88.2 ( 50881 bytes)
Msg sizes: 2524 ( 5.2 secs ) 8046 353644 ( 6.4 secs )
Messages: 2058
Scan times are in seconds and will be affected by line delays. Sometimes
my broadband speed drops to under 100 kB/s and the latency goes through
the floor, which is probably why the biggest message (350 kB) took only
6.4 secs to scan while the longest scan time (88.2 secs) was only a 50
kB message.
The box in question is an 855MHz P3 with 512 MB RAM and a 160GB WD
5400rpm IDE disk, so is probably slower than your target hardware. It's
running SA 3.3.2 under RedHat Fedora 13 and is not a dedicated spamd
box.
Martin
