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On Thu, 2002-09-19 at 00:00, David S. Miller wrote: > It was discussed long ago that csum_and_copy_from_user() performs > better than plain copy_from_user() on x86. I do not remember all The better was a freak of PPro/PII scheduling I think > details, but I do know that using copy_from_user() is not a real > improvement at least on x86 architecture. The same as bit is easy to explain. Its totally memory bandwidth limited on current x86-32 processors. (Although I'd welcome demonstrations to the contrary on newer toys) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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