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From: zerkle@iris.ucdavis.edu (Dan Zerkle)
Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
Subject: Re: My A3000/25/50 seems a bit slow... Why?
Message-ID: <8934@ucdavis.ucdavis.edu>
Date: 8 May 91 09:16:41 GMT
References: <1991May8.022802.19449@coplex.uucp>
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Reply-To: zerkle@iris.ucdavis.edu (Dan Zerkle)
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Organization: U.C. Davis - Department of Electrical Engineering and Computer Science
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In article <1991May8.022802.19449@coplex.uucp> dean@coplex.uucp (Dean Brooks) writes:
>
>  I just bought my Amiga 3000 25MHZ 50MB, and everything seems to be working
>great.  The only thing is that I was expecting many program to be BLAZINGly
>fast.  It seems to be a bit on the slow side, especially for a 25MHZ version.

How much memory do you presently have in it?  If you have just the 2
megabytes that came with it, that's the reason.  Between Kickstart
(512K) and Workbench (maybe 200K), there's not much fast memory left,
so your programs run out of chip memory.  Programs run MUCH slower
from chip memory on the 3000, since fast memory on the motherboard is
right on the CPU bus.

I added 4 megs to get 6 (2 chip, 4 fast).  I ran some before/after
benchmarks.  I don't remember the exact numbers, but certain programs
ran MUCH faster with the extra memory, since they could run completely
out of fast memory.

You don't need to add this much memory.  If you add just one more
megabyte, you will have substantially more fast memory, since you have
so little now.

           Dan Zerkle  zerkle@iris.eecs.ucdavis.edu  (916) 754-0240
           Amiga...  Because life is too short for boring computers.