> I was looking at the news articles liked to
> http://www.x86.org/News/HotNews.html, and I noticed one called
> "Performance Flaw in Pentium Processor?". However, I think it affect
> PPro, PII also.
Says the Pentium memcpy patch:
+ This enables special routines for copying and zeroing chunks of
+ memory that use the FPU to move 64 bit chunks of memory, which is
+ otherwise not possible on the Pentium processor.
Says their Web page:
In order to increase write rate dramatically, we made the simple trick
of using floating point writes, which are the only way 64 bit writes can
be done on a non-MMX Pentium.
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Trevor Johnson