Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!xanth!nic.MR.NET!srcsip!coltrane!carpent
From: carpent@coltrane.SRC.Honeywell.COM (Todd Carpenter)
Newsgroups: comp.sys.amiga
Subject: Re: Hard Drive & Chip Contention
Message-ID: <19314@srcsip.UUCP>
Date: 24 Mar 89 14:06:12 GMT
References: <16061@cup.portal.com> <8903232240.AA05683@yorkville.csri.toronto.edu>
Sender: news@src.honeywell.COM
Lines: 43
In-reply-to: drz@csri.toronto.edu's message of 23 Mar 89 22:40:39 GMT


[I have never seen evidence of this mythical line e

In article <8903232240.AA05683@yorkville.csri.toronto.edu> drz@csri.toronto.edu (Jerry Zarycky) writes:

|   In article <16061@cup.portal.com> Bruce_Eric_Bowers@cup.portal.com writes:
|   >
|   [asks about 2090a slow down due to high res screens]
|   > 
|
|   >What types of screen displays cause how much of a problem? (IE, does
|
|   I believe that any 640x200 or 640x400 display with 4 bit-planes
|   is guaranteed to cause a problem.
|
|   [stuff]
|
|   There is no problem until there is a problem, and EVERY problem
|   is a BIG problem.  When one of these screens comes up, a picture
|   that would take a few (< 5) seconds to load, now takes MINUTES to load,
|   with the hard disk controller LED on SOLID, with the drive making a
|   steady noise. (To be fair, I'm not sure how many minutes it takes to
|   load, since I abort it before it has a chance to finish).
|   [stuff]

Bull!  Excuse me, but I've been viewing *lots* of 640x400 pictures, overscan,
and others.  NO WAY does this cause slowdown on the order of minutes.  You have
some screwy software, I think.  Yes, I get slowdown.  Probably about a factor
of 2 to 5, at MAX.  I never exactly timed it but, I get a load of a high
res screen in less than one second.  If there is already a high res picture up
there, and I load in another, it is maybe 3 - 5 seconds.

I have a *fast* disk.  Other disks may not be able to handle the rate.  But I
would think that would make the problem *less* apparent.

My A2090a is relatively new (about 3 months old?  I forget).  But I doubt it
has the new ROMs in it.

Perhaps your memory is fragmented, and you are seeing garbage collection
effects?  Or something?

(Ouch!  Geez, these keys get hot!)