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Article #1045

Re: Is it possible to actually get a 16 MB/sec data transfer rate w/ an EIDE drive?

#1045
From: Ron Reaugh
Date: Tue, 09 Dec 1997 00:00
31 lines
2360 bytes


Bob Cousins <bob@lintilla.demon.co.uk> wrote in article
<348c422b.31666353@news.demon.co.uk>...
> In demon.tech.pc, Ron Reaugh wrote:
> 
> >Workstation performance is dominated by sustained transfer rate and not
> >access time.
> 
> I think that's completely untrue. Only in very few situations do you get
> conditions where sustained transfer rate would be dominant. i..e where
you are
> doing sequential accesses with large transfer sizes. Typical workstation
access
> is random access with relatively small transfers. It only takes a few
seeks to
> some other part of the disk to screw sustained rate.
> 
> Your theory is contrary to my own work on disk performance and all the
> "established" thinking I have ever seen. So unless you have a convincing
> argument or some hard figures, your theory sounds like an idle assertion.

No, it's true.  Remember all that's required for STR to dominate is that
the average transfer size to be 100K-200K which is about the size of an
average W95 DLL and smaller than the average W95 program.

> -- 
> Bob Cousins, Software Engineer.
> Home page at http://www.demon.co.uk/sirius-cybernetics/
> 
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From: "Ron Reaugh" <Ron-Reaugh@worldnet.att.net>
Subject: Re: Is it possible to actually get a 16 MB/sec data transfer rate w/ an EIDE drive?
Date: 1997/12/09
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