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SubjectRe: Re[2]: [PATCH] Athlon bug stomper. Pls apply.
On Wed, 19 Sep 2001, Linus Torvalds wrote:
> It is _probably_ an undocumented performance thing, and clearing that
> bit may slow something down. But it might also change some behaviour,
> and knowing _what_ the behaviour is might be very useful for figuring
> out what it is that triggers the problem.

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...

-Dan

--
[-] Omae no subete no kichi wa ore no mono da. [-]

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