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SubjectRe: sse for fast_clear_page()?
In article <3A82D325.9068BC07@colorfullife.com> you wrote:
> fast_clear_page() uses mmx instructions for clearing a page, what about
> using sse instructions?
> sse instructions can store 128 bit in one instruction, mmx only 64 bit.

the sse FP registers might be lossy. On my athlon, the in-kernel mmx
functions are memory-bound (eg > 1 Gbyte/sec throughput)

Userspace program for the athlon code:

http://www.fenrus.demon.nl/athlon.c

Greetings,
Arjan van de Ven


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