Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!samsung!emory!mephisto!udel!sbcs!root
From: root@sbcs.sunysb.edu (Systems Staff)
Newsgroups: comp.sys.amiga.tech
Subject: Re: AMIGA too slow for speeds higher than 9600 Baud? HELP!
Message-ID: <7649@sbcs.sunysb.edu>
Date: 13 Apr 90 00:16:23 GMT
References: <02373.AA02373@spirit.kref.sub.org> <1990Apr12.133830.17051@eng.umd.edu>
Distribution: usa
Organization: State University of New York at Stony Brook
Lines: 33

In article <1990Apr12.133830.17051@eng.umd.edu> smaug@eng.umd.edu (Kurt Lidl) writes:
>In article <02373.AA02373@spirit.kref.sub.org> rob%spirit@impch.imp.com writes:
>>Now he has trouble with his AMIGA-1000 and the HST at speeds higher than
>>9.600 baud! The Amiga just loses some bytes when receiving data with high
>>speeds (>9600Bit/s) (it also mixes/doubles data or spits them out too late).
>>
>>[much about switching the low-level system drivers, kickstarts, et al]
>>
>>We're wondering why telecommunication-programs have got gadgets for speeds
>>upto 57.6kBit/s, when the AMIGA normally can't handle more than 9600?

	This is an entirely empirical statement, but I am able to
	run SLIP at 38.4K baud and still compile, etc at the same
	time.  I would say that the max speed you can run the port
	at depends a lot on the Disable()/Enable() (and perhaps
	Forbid()/Permit()) behaviour of other applications you have
	running on the system.  The funny thing in all of this is
	that my 2630 equipped system can run right along merrily
	talking SLIP @ 38.4K to a Sparcstation that dogs badly
	under the serial load.  Before you jump to conclusions
	about Sparc vs 68030 or SunOS vs AmigaDOS, the problem is 
	apparently the bad SysV serial software Sun uses for tty 
	streams modules (at least according to the author of the 
	sparc SLIP code).  Well, it is nice to say we really can do 
	some things "better" on the Amiga, anways ;-)  Device drivers
	seems to be one of those things AmigaDOS does very well
	compared to other OS'.

>>R o l a n d   B l e s s | UUCP: rob@spirit.kref.sub.org                       |
>/* Kurt J. Lidl (smaug@eng.umd.edu) | Unix is the answer, but only if you */

					Rick Spanbauer
					State U of NY/Stony Brook