Markku Kolkka wrote:
Viestiss� Maanantai 21. Lokakuuta 2002 15:09, Neal D. Becker kirjoitti:
Note that selecting an athlon kernel does NOT enable the athlon
optimzations!
Right, the kernel gets compiled with -mcpu=i686. The only effect of choosing
Athlon configuration seems to be to the memory clear/copy routines in
arch/i386/lib/mmx.c
Which has a large impact :)
I thionk the earlu -mcpu=k7 produced some bad code in the kerenl,
which is why it wasn't used. What's the minimum compiler now,
egcs? Does it have a -mcpu=k7 switch? Does it do anything?
-Thomas
