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Subject: Re: For all tuning/hardware freaks

Author: Eugene Nalimov

Date: 09:26:04 04/22/04

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On April 22, 2004 at 11:04:30, Robert Hyatt wrote:

>On April 22, 2004 at 11:01:41, Eugene Nalimov wrote:
>
>>On April 22, 2004 at 10:57:18, Robert Hyatt wrote:
>>
>>>On April 22, 2004 at 02:08:01, Jouni Uski wrote:
>>>
>>>>You are all losers! According to CSS 2/2004 sheik XXXX (chess fan from UAB) have
>>>>bought 16-way XEON box to run Fritz, but it didn't run. Hmm... He has not enough
>>>>money left to buy Deep Fritz may be?
>>>>
>>>>Jouni
>>>
>>>
>>>1.  Where can anyone buy a 16-way xeon?  Most I have seen is 8-way.  And it
>>>doesn't perform very well.
>>>
>>>2.  UAB?  As in where I am?  Have heard of no such machine here at all...
>>
>>http://www.unisys.com/products/es7000__servers/hardware/index.htm
>>
>>Thanks,
>>Eugene
>
>
>I was fixing to post an update.
>
>Also, IBM has a 16-way box...
>
>After my first experience with 8-way xeons, I won't hold my breath for chess
>performance, memory performance was _way_ bad...

Hyperthreading should help in exactly such cases :-)

I've seen results of tests "how hyperthreading helps" for large server
application. Speedup improved almost linearly from ~7% on single CPU system to
~25% on 8-CPU one.

Thanks,
Eugene

>Opterons are a different
>matter, Itaniums might also be, although NUMA does change things...



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