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From: bj@cbmvax.commodore.com (Brian Jackson)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Speeding up floppy disk heads
Message-ID: <22276@cbmvax.commodore.com>
Date: 9 Jun 91 00:16:56 GMT
References: <1991Jun8.001706.13497@ms.uky.edu>
Reply-To: bj@cbmvax.commodore.com (Brian Jackson)
Distribution: na
Organization: Commodore, West Chester, PA
Lines: 29

In article <1991Jun8.001706.13497@ms.uky.edu> kherron@ms.uky.edu (Kenneth Herron) writes:
>Over in .applications someone asked about a program called speedup which
>changes the head step rate on floppy drives.  I did a rewrite of this
>program some time ago and (having been reminded) am wondering about
>something.
>
>FYI:  I can change the step(?) delay from 3000 ms down to 1900 ms without
>problems; around 1800 it gets unreliable.  The biggest benefit is that
>the drives make less noise.

And quieter drives (this is pretty much only a problem on the older
A1000's) is pretty much the only value. I used this on my A1000
and, after I ran a few benchmarks on the thing, I found that any
performance gains were very small indeed (essentially non-existant.)

It's probably harmless enough for the purpose of quieting noisy drives
(though I may be corrected by the DOS folks) but it's probably
worthless for any 'preformance' purposes.

Caveat: I have not used this on anything but an A1000 so ...

>Kenneth Herron

Brian

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 | Brian Jackson  Software Engineer, Commodore-Amiga Inc.  GEnie: B.J. |
 | bj@cbmvax.cbm.commodore.com    or  ...{uunet|rutgers}!cbmvax!bj     |
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