Re: [Exim] OT: Sizing a virus checking engine

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Author: Exim Users Mailing List
Date:  
To: Stefan Kaltenbrunner
CC: Exim Users Mailing List
Subject: Re: [Exim] OT: Sizing a virus checking engine
[ On Friday, May 9, 2003 at 18:41:39 (+0200), Stefan Kaltenbrunner wrote: ]
> Subject: Re: [Exim] OT: Sizing a virus checking engine
>
> > Look at the SPECint_rate2000 numbers for the whole system to get an idea
> > of how different systems compare:
> >
> >     http://www.spec.org/cpu2000/results/

>
> this shows me that our test are about right, a 2Ghz XEON is definitly
> faster than our 500/700Mhz Sparc's :-)


That's what we wanted to hear! ;-)

I've recently been benchmarking a fileserver for a client. It has a 2.8
GHz so-called Pentium IV Xeon, but with only 512KB L2 cache memory.
It's fast, but nowhere near as fast as one might think it could be based
on the clock speed alone. I didn't exactly worry about its CPU speed
since it's about ten times as fast as is needed for the intended job,
but in passing I noted that for many things, including compiling, it
doesn't seem to be anywhere even remotely close to an order of magnitude
faster than a plain old 300MHz Pentium-II -- maybe only 4-5 times as
fast, and that's even with disks that are in fact a full order of
magnitude faster, and with over twice the main memory available (and
probably two orders of magnitude faster memory throughput capability),
than I'm used to using on my normal PII/300MHz development server.

--
                                Greg A. Woods


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