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From: melling@cs.psu.edu (Michael D Mellinger)
Subject: Re: Blitter vs. 040 (was: Computer Architecture question
In-Reply-To: daglem@idt.unit.no's message of 15 May 91 21: 39:17 GMT
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	<?iaHpry4@cs.psu.edu> <1991May15.125954.1993@NCoast.ORG>
	<1991May15.213917.11992@ugle.unit.no>
Date: Thu, 16 May 1991 02:46:42 GMT
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In article <1991May15.213917.11992@ugle.unit.no> daglem@idt.unit.no (Dag Lem) writes:

   You state that the NeXT is slow on display updating. Just wait till you try
   the above mentioned Workbench setup. Try moving windows around. Try listing some
   lengthy directories in a Shell window.

Whenever something is slow on the NeXT, like bringing a window to the
foreground, try repeating the action and see if it is still slow.
While your at it listen for the HD to start spinning.

A 100MHz 68050 + page swapping = 0 mips.

How is Commodre going to add VM to the Amiga?  Some pages need to be
wired into memory, otherwise your animation is going to have problems.

   Gawd I really wish they'd speed up that Boring old Lazy Incapable Tiny Two cent 
   poor Excuse for a Real graphics coprocessor.
   I'm truly sorry if I hurt anyones feelings here, this is just how I feel.
   I love my Amiga, I really do, that's why I'm concerned.
   And please don't give me that 
     "The 68030+Blitter is still better than just a 68030".
   Sure, but the blitter isn't doing its intended job fast enough, get it?

The blitter is the bottleneck?  Maybe I'm not crazy :-).  No e-mail
please.

   If you can't even use the blitter to shuffle windows around (ought
   to be an ideal job for the blitter) because it's too goddamned slow, you use the
   68030 instead (CPUBlit). Now how shall we put the blitter to use?
   Hmmm well maybe we could get it to run our applications instead? :-)
   I just keep rambling on and on.

How about replacing the blitter with one of Motorola's new cheap
68030s(minus MMU) or 020s?  It will help reduce Commodore's R&D
budget, which gets chopped on a regular basis anyway.

-Mike

