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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!sun-barr!ames!agate!stanford.edu!leland.Stanford.EDU!dhinds
- From: dhinds@leland.Stanford.EDU (David Hinds)
- Subject: Re: OS2+VIO windows=110baud
- Message-ID: <1992Nov5.232026.1367@leland.Stanford.EDU>
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSG, Stanford University, CA 94305, USA
- References: <1992Nov1.113845.20736@monu6.cc.monash.edu.au> <1d6kb1INNq5d@matt.ksu.ksu.edu> <16831@umd5.umd.edu>
- Date: Thu, 5 Nov 92 23:20:26 GMT
- Lines: 37
-
- In article <16831@umd5.umd.edu> adhir@cygnus.umd.edu (Alok Dhir) writes:
- >
- >What kind of a computer are you using? A 386/25 or something? What in the
- >WORLD makes you think your 386 should be faster than a Sparc?? Geez. I'm
- >sick of all you people with 386/16s running them at 1024x768, and then crying
- >about the slow speed of DOS Windows. Have you ever tried the DOS Windows in
- >Win3.1? They are exactly as slow (or as fast, in my case). If you want
- >your scrolling to be fast, get a new graphics card or a new computer, or
- >reduce your resolution!
- >
- >Quit crying. It's YOUR hardware, NOT OS/2!!
-
- Oh, come on. The workstation on my desk is maybe 10X the power of my
- PC, to be generous. And it scrolls windows about 200X as fast: more
- than 1000 lines per second. And that window it is scrolling has as
- many pixels as my whole VGA screen. We don't contest the fact that PC
- display adapters really suck. Even the best commodity cards (8514,
- S3, whatever) are kludges that still basically suck. Still, blaming
- the problem on the hardware is a lame excuse, because this problem has
- been SOLVED BEFORE. Desqview-386 did lazy screen updates to get
- better video performance; in fact, my text windows, through Desqview's
- virtualized display drivers, scrolled much faster than full-screen DOS
- without the virtualization layer. Of course, these were text-mode
- windows, and I don't expect the same when comparing bit-mapped windows
- with full-screen text. But this does prove the method works without
- much overhead.
-
- If OS/2 can't do this, it is because IBM has decided that optimizing
- performance on systems with low-end adapters is not a high priority.
- Not because it is a difficult problem. This seems strange to me, when
- they have gone to considerable trouble to squeeze performance out of
- systems with inadequate memory. Memory is a lot cheaper than new
- coprocessed video cards and new motherboards.
-
- - David Hinds
- dhinds@allegro.stanford.edu
-
-