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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!munnari.oz.au!bruce.cs.monash.edu.au!monu6!yoyo.cc.monash.edu.au!parry
- From: parry@yoyo.cc.monash.edu.au (Tom J Parry)
- Subject: Re: Slow scrolling in DOS solved
- Message-ID: <1992Nov9.090659.17846@monu6.cc.monash.edu.au>
- Originator: parry@yoyo.cc.monash.edu.au
- Sender: news@monu6.cc.monash.edu.au (Usenet system)
- Organization: Monash University, Melb., Australia.
- References: <1992Nov7.095001.13095@ringer.cs.utsa.edu>
- Date: Mon, 9 Nov 1992 09:06:59 GMT
- Lines: 26
-
- Mike Levis (mlevis@ringer.cs.utsa.edu) wrote:
-
- [Very interesting results deleted]
- >
- > Also note that sometimes a DOS Windowed is faster than a DOS Full Screen!
- > And yes, I got an 18.8 (6.59 / 0.35) times faster scrolling just by
- > changing some settings!
- >
- > And remember, these results are only from my configuration. I don't
- > see how OS/2 can take 40 seconds to scroll 128 lines unless the
- > video card/circuitry is slow.
-
- First I am using 256 colours 800x600 which will make a difference and my
- card is a Tseng Labs ET4000 card (yes, Tseng card & chipset). I doubt the
- video circuitry is the problem. As I said before, by turning off EMULATION
- in DOS sessions, I have reduced the scroll time on my 128 line file to 4
- seconds but OS/2 sessions are still 40 seconds (these are windowed
- sessions). Full screen OS/2 sessions fly by in 0.78 secs!!!
-
- All my tests are done with the cursor starting on the bottom line of the
- screen with 128 lines of about 70 characters times using 4OS/2 or 4DOS timer
- command.
-
- --
- Tom J Parry.
- Your reality is a figment of my imagination.
-