[rescue] Advice on Octanes

Dave McGuire mcguire at neurotica.com
Tue Sep 23 17:33:26 CDT 2003

On Tuesday, September 23, 2003, at 06:15 PM, Francisco Javier 
Mesa-Martinez wrote:
>>>> The memory system of the Octane is on par if not slower than a
>>>> P3-800, the
>>>> P3 destroys the R10K in raw computation power, hence the Octane can
>>>> have
>>>> all the memory bw it wants, but since it is running a
>>>> computationally and
>>>> not data bound process it just can not compete with the P3 in those
>>>> tasks.
>>>    That's interesting.  Then why is my Octane (a 200MHz R10K) so much
>>> faster doing PRETTY MUCH ANYTHING than my cow-orker's 650MHz P3?
>>>    I call "bullshit".
>> I'll second that.  According to what I know, the Octane has 1GBps of
>> dedicated memory bandwidth.  A computer with PC133 RAM has about 1 
>> GBps
>> of memory bandwidth - but it's not dedicated.  That means that the x86
>> system's memory subsystem is going to be, in practice, very much 
>> slower
>> because it also has to support PCI and AGP ports, as well as anything
>> else on the bus.  So, in a system with PC133 memory on a 133Mhz FSB, 
>> the
>> Octane is going to beat it up, take it's lunch money, and send it home
>> crying.
> I recommend a remedial computer architecture class before making such
> statements, thanks :).

   Classes != reality.  Sorry to burst YOUR bubble.  All the classes in 
the world won't make one number larger than another.


Dave McGuire                      "My tummy hurts now, but my soul
St. Petersburg, FL                 feels a little better."     -Ed

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