Date: Wed, 18 Mar 1998 18:25:51 +0100 (MET) From: Søren Schmidt <sos@FreeBSD.ORG> To: lamaster@george.arc.nasa.gov (Hugh LaMaster) Cc: freebsd-current@FreeBSD.ORG, lamaster@george.arc.nasa.gov Subject: Re: Stream_d benchmark... Wow, there really are differences in hardware Message-ID: <199803181725.SAA02309@sos.freebsd.dk> In-Reply-To: <199803181658.IAA02816@george.arc.nasa.gov> from Hugh LaMaster at "Mar 18, 98 08:58:06 am"
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In reply to Hugh LaMaster who wrote:
>
> Soeren Schmidt (sos@FreeBSD.org) wrote:
> > In reply to Jaye Mathisen who wrote:
> >
> > Hmm, Then I should be proud of my noname system (p6/200/128MB 72pEDO):
> >
> > Function Rate (MB/s) RMS time Min time Max time
> > Copy: 117.0286 0.2758 0.2734 0.2812
> :
> > Triad: 125.3878 0.3917 0.3828 0.4219
> >
> > So what ??
>
> Like all benchmarks, there is the question of "pride". However,
> computer performance is also a major problem/interest, and, stream
> is particularly informative for a "toy benchmark". Your numbers
> seem very high for a Natoma board - what type of EDO are you using
> and what are your BIOS settings? Exactly what kind of "noname" board
> is it? If these numbers are correct, I want one. Have you run the
> c't ctcm benchmark on it also? That gives a nice profile of the
> different memory bandwidth numbers from L1 cache, L2 cache, and
> main memory. [Note also, stream sometimes doesn't get the clock
> HZ set properly. Are you sure it is correct with these numbers?]
> [Maybe you have the 45ns EDO? What are your leadoff timings?]
> I'm impressed, anyway. I want to know more. In particular, I might
> be better off with one of your "noname" configurations than a 333 MHz
> P - II for driving some fast network interfaces. Your numbers look
> more like one of the specially-built and tweaked expensive "server"
> Orion boards.
Well, "noname" was more in the sort that its not a "brand name" machine,
but one build out of garden varity parts.
It's a TYAN s1662D dual PPro board with dual P6/200/256K, memory is 4
stock 32Mb 72pin 60Ns EDO RAM. Timing is set as std for the 4.0E BIOS
with 60Ns memory timing, disks are two Maxtor DiamondMax 4.3G in DMA mode.
I havn't run the CT benchmark, I'd have to find a DOS disk somewhere
to do that. On the whole TYAN is know to have a much more agressive
memory timing than say ASUS, and the board is pretty picky about RAM
quality (I use Hyundai here).
Worldstone (a WHOLE world with -j9 -O -pipe and src & obj async on different
disks) on this machine is ~1h10min dependend on how much happens in between
(it runs X during the make as I have no text console :) ).
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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