[comp.unix.xenix] Cache controllers, can Xenix use th

neese@cpe.UUCP (03/06/89)

The Intel memory cache controller is completely transparent to the
operating environment (i.e. MS-DOS/XENIX/OS-2) of the machine.  It
buys more performance for the MS-DOS user versus the XENIX/UNIX
user.  This is due to the context switching done by XENIX/UNIX.  Each
time the kernal does a context switch, the data in the cache is
invalid and the cache must be reloaded before becoming effective
again.  It has been my experience that the cache controller does
produce better performance over machines without it regardless of
the operating environment.

					Roy Neese
					Tandy Computer Product Engineering
					UUCP @ {killer,texbell,merch}!cpe!neese