New Silicon Insider Article

Article: Escape From the Planet of x86
By: Paul DeMone (pdemone.delete@this.igs.net), June 22, 2003 4:49 pm
Room: Moderated Discussions
Anonymous (nn@nn.invalid) on 6/22/03 wrote:
---------------------------
>Paul DeMone (pdemone@igs.net) on 6/20/03 wrote:
>---------------------------
>>The SPEC CPU suite programs are specifically selected and sometimes even
>>modified to minimize the influence of differences in OS and language libraries
>>across platforms.
>
>Then why is e.g. Intel's compiler for Linux showing noticeably lower performance
>than Intel's compiler for Windows? Last evidenced in Ace's Hardware's posting about Opteron SPEC performance:
>
>http://www.aceshardware.com/read_news.jsp?id=65000417
>
>I find it hard to believe that executable format and execution model wouldn't affect performance somewhat. :)

I don't believe I claimed otherwise. I simply said that effort was made in the construction of each
SPEC CPU suite to minimize the effect of OS/library related cross platform differences. But there
are OS functions that cannot be avoided, like virtual memory management. Perhaps the VM code
in Windows is more efficient on the target machine than Linux's.
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