Date: Fri, 15 Aug 1997 21:18:04 -0600 (MDT) From: Wes Peters <softweyr@xmission.com> To: "Jordan K. Hubbard" <jkh@time.cdrom.com> Cc: chat@freebsd.org Subject: Re: speed test Message-ID: <199708160318.VAA27279@obie.softweyr.ml.org> In-Reply-To: <13234.871558788@time.cdrom.com> References: <Pine.BSF.3.95.970814114229.1580M-100000@dylan.visint.co.uk> <13234.871558788@time.cdrom.com>
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Jordan K. Hubbard writes:
> I'm not sure what the bus speed is, but the memory width is 64 bit.
> You have to use 8 SIMMS at a time with the Durango motherboard,
> nothing smaller.
Uh, no. The registers are 64 bits wide. If you use 8 SIMMS at a time,
the memory bus width is 8x32 = 256 bits wide. Think in terms of
refilling cache; you get to read 256 bits/cycle. This is pretty typical
of high-end RISC processors, and one of the reasons why they're faster
in real-world, multitasking use than PC systems with 32- and 64-bit wide
memory buses. Of course, they cost a lot more, too.
> > If so, then that alpha better not have cost more than 2000 UK pounds (or
> > $2000 I suppose considering the price of hardware here.)
>
> It's less than that and remains a pretty good deal. Don't forget that
> memory speed isn't the only benchmark it wins. :-)
Can you say "floating point?" Sure, I knew you could. Actually, in
terms of price/performance, FreeBSD/AXP would scare the pants off just
about any system in the world. ;^) Is Carrera Computers still kicking
around? A couple of years ago, they were busting up DEC's performance
numbers with their AXP systems.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
http://www.xmission.com/~softweyr softweyr@xmission.com
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