Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!think.com!spool.mu.edu!uunet!cbmvax!amix!vanth!jms From: jms@vanth.UUCP (Jim Shaffer) Newsgroups: comp.sys.amiga.misc Subject: Re: What do you put in your Startup-Sequence? Message-ID: Date: 1 May 91 17:53:49 GMT Article-I.D.: vanth.jms.4263 References: <1991Apr24.192849.12855@ucselx.sdsu.edu> <1991Apr29.201147.15823@ucselx.sdsu.edu> Organization: The Search For TERRESTRIAL Intelligence Lines: 35 In article <1991Apr29.201147.15823@ucselx.sdsu.edu> maxc1553@ucselx.sdsu.edu (InnerTangent - human1) writes: >jms@vanth.UUCP (Jim Shaffer) writes: > >>>Speedup changes the rate your floppydrive reads the floppy. It can be used to >>> speedup your floppy read/write by 2 times. > >>HUH? TWO TIMES? What exactly does it do? > > Sure. In the doc of SpeedUp, it points out that commodore's >trackdisk.device (or something) has a un-documented place where you store >the floppy drive step-rate. (again the docs) StepRate is the time for the >floppy drive read/write head to move from one sector to another..(if I re- >membered correctly). Because commodore use a variaties of floppy drives >for their A500 and A2000, they slowed down the read so that the flaky drives >will work although the better drive mechnisms could actually read/write >faster without problem. (sucks, huh?) Oh, I see... I have a program called DFDelay which lets you change the step delay and the settle delay. It sounds like it's doing exactly what Speedup is doing. But I think your "2 times" figure is WAY off... Let's say you halve the step delay (I don't think it's safe to even halve it though.) You have NOT doubled the speed of the drive. As a matter of fact, I doubt you've made any noticeable difference at all. I'm thinking about removing DFDelay from my Startup-Sequence so as to save time loading. I really don't know why it even exists, because the times involved are so tiny. If somehow Speedup is changing something other than that, let me know. -- * From the disk of: | jms@vanth.uucp | "You know I never knew Jim Shaffer, Jr. | amix.commodore.com!vanth!jms | that it could be so 37 Brook Street | uunet!cbmvax!amix!vanth!jms | strange..." Montgomery, PA 17752 | 72750.2335@compuserve.com | (R.E.M.)