Hello NetBSDers.  I learned today that most Intel CACHE RAM
controllers only put the contents of the first 64MB of RAM into the L2
cache.  The exception to this is the HX chipset.  My questions are as
follows:

A.  Is this accurate information?

B.  For those machines running NetBSD with more than 64MB of memory on
non-HX machines, what kind of performance hit do we take?

C.  Is there a good simple way to test and quantify this performance hit?
-thanks
-Brian