Re: Patch to enable K6-2 and K6-3 processor optimizations

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Fri Aug 09 2002 - 05:31:19 EST


We can't actually use MMX/FPU instructions in the kernel in the general
case. That would require saving and restoring the user process floating
point state - which is extremely expensive

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