Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uunet!orca!javelin.es.com!blgardne
From: blgardne@javelin.es.com (Blaine Gardner)
Newsgroups: comp.sys.amiga.misc
Subject: Re: Why is my 3000 slow? (Or is it?)
Message-ID: <1991Mar15.174212.22988@javelin.es.com>
Date: 15 Mar 91 17:42:12 GMT
References: <16647@chopin.udel.edu>
Reply-To: blgardne@javelin.sim.es.com
Distribution: na
Organization: Evans & Sutherland Computer Corporation
Lines: 30

don@chopin.udel.edu (Donald R Lloyd) writes:
>	Also, I've heard claims of measuring 1.2 mbytes/sec with DiskSpeed.
>With what settings was this achieved?  On my 2M chip 2M fast system I've yet to
>get anything that high.

I've measured 1.5 megabytes/sec and 1.9 megabytes/sec, both with
DiskSpeed, and the Intensity and Stress options hardly slowed it down at
all.

The settings used were: A3000/25 2M Chip, 4M Fast.

Oh, and this probably made some difference too:   :-)

Fujitsu 1.2 GB drive	   = 1.9 MB/sec
Hewlitt-Packard 1 GB drive = 1.5 MB/sec.

With the stock Quantum 105 I was getting a peak of 800-900 KB/sec, and
with the Quantum 170 I replaced the 105 with I get 1 MB/sec, and the CDC
(aka Imprimis, now aka Seagate) Wren III gets 975 KB/sec.

What I've seen from testing a dozen different drives on the A3000, the
limiting factor is always the hard drive. The A3000's SCSI controller is
far faster than any hard drive you can buy, but it won't work miracles
on a slow drive either. (I tried a Teac 40 meg, designed for the laptop
market, that peaked at 250KB/sec on the A3000).
-- 
Blaine Gardner @ Evans & Sutherland  580 Arapeen Drive, SLC, Utah 84108
blgardne@javelin.sim.es.com     or    ...dsd.es.com!javelin!blgardne
DoD #0046   My other motorcycle is a Quadracer.         BIX: blaine_g
  Anticipation, anticipation, is making me late, is keeping me waiting.