Use of floating point on typical mailserver

[Martin.Hepworth]

Greg

Got one here (4 core model) used for compiles etc...just added two new
drives in, zero downtime...shiney. Incredibly noisy though (needs to be
in a server room not near your desk! I'm sure there's an RB211 ) and if
this is 'cool' threads I dunno what warm is like;-)

Anyway a certain sys-admin at soton.ac.uk set one up as his email server
on a big 8 core system...perhaps he can comment on his performance. A
lot of this will be I/O based anyway so a BIG raid array/SAN with lots
of spindles will win over lots of CPU anyday (unless you a lot of SSL
connections going)

BTW my new email server is a new Dell 2950  (Centos 4.4) with 6 x 73GB
10k SAS RAID 5 dfor mail store and hardly get a loadave reading 0.00
with 140 imap users...8 GB ram and 2 twin core 3.2 Xeons (I think can't
remember exact CPUS). Going to do SIP and IM on it as well soon. A LOT
cheaper than a T2000....

--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-
> bounces at lists.mailscanner.info] On Behalf Of Greg Matthews
> Sent: 01 February 2007 11:20
> To: MailScanner discussion
> Subject: Use of floating point on typical mailserver
>
> I'm considering evaluating the "coolthreads" hardware from Sun, in
> particular the T2000. This utilises the first generation "Niagra"
chips
> which can handle up to 32 threads per socket.
>
> The technology looks pretty good apart from the fact that they only
have
> a single FPU per socket.
>
> My question is, how much FP does a typical mail server (sendmail/MS/MW
> etc) need? Is it even worth going through the evaluation procedure or
> should I wait until the Niagra2 chips arrive (May apparently) which
will
> have one FPU per core? Anyone here using this hardware?
>
> GREG
> --
> Greg Matthews           01491 692445
> Head of UNIX/Linux, iTSS Wallingford
>
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