Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!usc!ucsd!nosc!crash!pro-graphics.cts.com!johns
From: johns@pro-graphics.cts.com (John Silvia)
Newsgroups: comp.sys.amiga
Subject: Re: AmigaUUCP 1.06D and V32 (9600bps) problems...
Message-ID: <6502@crash.cts.com>
Date: 24 Dec 90 00:56:03 GMT
Sender: root@crash.cts.com
Lines: 22

In-Reply-To: message from dac@prolix.ccadfa.oz.au

The "hiccup" that you are getting is inherant of most of the DMA disk
controllers that are out there.  If you had updated your hard disk controller
to a fully interrupt driven system, then the machine would not slow down
during these pauses, and there would be no problem.
 
One example of this that I have seen is when people use things like Broadcast
Titler 2.0, on a system with a DMA controller, and they try to make a
something large do a horizontal scroll.  Sometimes the "hiccup" kicks in, and
the image jumps.

On my system, A2500/30, 1 meg chip, 2 megs 32bit, GVP Faastrom Series II
controller running under dos 2.0, I have no problems with this "hiccup" but a
similar system which runs with a different DMA type controller will - and has.
-- John Silvia

 Pro-Graphics BBS  908/469-0049  "It's better than a sharp stick in the eye!"

Internet: johns@pro-graphics.cts.com
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    ARPA: crash!pro-graphics!johns@nosc.mil