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Subject: Re: Crafty on IA-64?

Author: Dann Corbit

Date: 10:58:31 10/22/01

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On October 22, 2001 at 07:20:07, Gian-Carlo Pascutto wrote:

>On October 22, 2001 at 05:33:50, Ralf Elvsén wrote:
>
>>Has anyone seen how Crafty does on an Itanium processor?
>>
>>Ralf
>
>www.spec.org
>
>Short answer: pathetic
>
>Itanium 800:  355

I suspect that this measurement is largely a misnomer.
The Itanium chip has a popcount instruction.  Much of the core of crafty has
been rewritten for IA32 assembly.  If the appropriate rewrite takes place for
Itanium, I expect much better figures.

>Pentium4 2G:  644
>Athlon 1.4G:  738
>Alpha    1G:  803

On the other hand, this figure for Alpha shows what a vastly superior chip it
is.  There has not been an assembly rewrite for Alpha, except a very few minor
things like the locking code.  Hence, this excellent performance mark shows what
a terrific architecture Alpha is.

Now that Compaq has been engulfed by HP, I wonder what the prospects are for the
Alpha chips?  I know that OpenVMS is going to be ported to the Itanium.  Based
on this bench, it doesn't look promising.



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