home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!caen!saimiri.primate.wisc.edu!doug.cae.wisc.edu!keiths
- From: keiths@cae.wisc.edu (Keith Scidmore)
- Subject: VLB requires wait-states???
- Organization: College of Engineering, Univ. of Wisconsin--Madison
- Date: 20 Dec 92 13:57:44 CST
- Message-ID: <1992Dec20.135744.5432@doug.cae.wisc.edu>
- Lines: 13
-
- I was told by a Zeos Rep. that their VLB machines have 1 wait state
- for reads and none for writes *per the VESA standard*. Is it true
- that VESA requires a wait-state for reads? I thought that wait-states
- were a thing of the past (at least for well designed machines). What
- it sounds like he was saying is that all VESA machines have memory
- wait states. This would mean that to get the fast VESA bus you have
- to degrade the performance of your memory system where reads usually
- dominate over writes by about 3 to 1! Is this true?
-
- Keith R. Scidmore
-
-
-
-