Hello Arjan,
Wednesday, September 19, 2001, 9:55:00 PM, you wrote:
>> AFAIK noone has even tested it yet to see what it does to performance! Eg
>> it might slow down memory access so that athlon-optimized memcopy is now
>> slower than non-athlon-optimized memcopy. And if it turns out to be the
>> case, we might as well just use the non-athlon-optimized memcopy instead
>> of twiddling undocumented northbridge bits...
AvdV> Ok but that part is simple: run
AvdV> http://www.fenrus.demon.nl/athlon.c
Well, this tester is really useful.
Some bugs though:
* fast_copy_page() does fsave instead of frstor
* do we need femms before frstor?
My PII at work does not even execute femms...
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This archive was generated by hypermail 2b29 : Sun Sep 23 2001 - 21:00:36 EST