Choosing cpu type when building kernel (stupid one i know)
Steel City Phantom
scphantm at yahoo.com
Tue Feb 28 23:13:14 PST 2006
in bsd 6, i have to recompile the kernel to add atapicam. ok, fine.
the part of the config file that gets me is this:
machine i386
cpu I486_CPU
cpu I586_CPU
cpu I686_CPU
ident GENERIC
the machine i386, i get. all intel PC's since the 386 have used a
common basic instruction set and the developers just want to build in
something in case intel pulls an Apple Computer on us.
the rest is what i don't understand. 486 isn't mentioned in the NOTES
file, 586 is just pentium, and 686 is pentium pro. I have a P4 1.4 gig
intel chip in my system, what should these settings be? if i remove 486
and 686 does that give me any performance advantage or are these
settings defaults because they are ment to be defaults and i should just
be quiet about it.
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