Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpda!motcsd!xdos!doug From: doug@xdos.UUCP (Doug Merritt) Newsgroups: comp.sys.amiga Subject: Re: DiskPerf results Message-ID: <266@xdos.UUCP> Date: 6 May 89 18:11:44 GMT References: <6720@cbmvax.UUCP> <7985@killer.Dallas.TX.US> Reply-To: doug@xdos.UUCP (Doug Merritt) Organization: Hunter Systems, Mountain View CA (Silicon Valley) Lines: 23 In article <7985@killer.Dallas.TX.US> elg@killer.Dallas.TX.US (Eric Green) writes: >I think 3.58MB/s is plenty fast ;-). (note what I said about all >speeds > 500K/sec... massive overkill!). I don't see this. Why do you say > 500K/sec is overkill??? My experience over the years with disks on Unix says that faster is better. Granted the access time is usually the dominating factor, but not always. What about the case (either UNIX *or* AmigaDos) when you've carefully arranged to have large files arranged more-or-less contiguously? Then the transfer rate makes a difference. What if you want to dump animation/sound off disk, and you have a huge amount of data. A factor of two in disk transfer could translate directly into a factor of two in the frame rate. The difference in non-animation may be less dramatic but still noticeable. If I load a 1 megabyte executable, or image (etc) then the difference between .5 sec and 1 second will often be noticeable. It won't always be swamped by the access time. Doug -- Doug Merritt Member, Crusaders for a Better Tomorrow {pyramid,apple}!xdos!doug Professional Wildeyed Visionary "Of course, I'm no rocket scientist" -- Randell Jesup, Capt. Boinger Corps