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- Path: sparky!uunet!think.com!spool.mu.edu!agate!agate!hcobb
- From: hcobb@fly2.berkeley.edu (Henry J. Cobb)
- Newsgroups: comp.os.os2.misc
- Subject: Re: Does VESA Local Bus put a huge strain on a CPU?
- Date: 7 Nov 92 09:13:38
- Organization: /rubin/hcobb/.organization
- Lines: 24
- Message-ID: <HCOBB.92Nov7091338@fly2.berkeley.edu>
- References: <Bx29yH.EE8@news.cso.uiuc.edu> <1992Nov2.031700.14433@njitgw.njit.edu>
- <1992Nov2.224052.7151@mksol.dseg.ti.com>
- <1992Nov3.195634.7436@njitgw.njit.edu>
- <1992Nov4.213113.7644@mksol.dseg.ti.com> <Bx84MC.A2y@news.cso.uiuc.edu>
- NNTP-Posting-Host: fly2.berkeley.edu
- In-reply-to: ddavis@osiris.cso.uiuc.edu's message of Thu, 5 Nov 1992 03:34:58 GMT
-
-
- ]Let me possibly further confuse this issue. How does a local bus IDE
- ]controller fit into the picture? Is the combination of LB video and drive
- ]controller about the same as far as drive performance while offering better
- ]video? The Gateway 2000 66MHz LB system offers both the LB IDE drive and LB
- ]ATI video combination.
- ]
- ]dave davis
- ]ddavis@osiris.cso.uiuc.edu
-
- If it implements a multi-sector cache on the local bus then the
- card would pull down a sector and present it on the local bus for a quick
- CPU fast-memory to fast-memory copy.
-
- But the best solution would be a bus-mastering FIFO over the local
- bus to dribble information directly anywhere into main memory at LB speeds
- without CPU intervention.
-
- Will we see a local bus Adaptec SCSI controller soon? (And drivers
- for Half-OS and Uni-yucks? (Surely not a trademark of a Modem test
- command)).
- --
- Henry J. Cobb hcobb@fly2.berkeley.edu SFB Tyrant
- "What's the frequency Kenneth?"
-