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From: mk59200@korppi.tut.fi (Kolkka Markku Olavi)
Newsgroups: comp.sys.ibm.pc
Subject: Re: CoreTest ?
Summary: EMS kills performance!
Keywords: EMM386 CoreTest SCSI
Message-ID: <13477@etana.tut.fi>
Date: 6 Jun 90 06:16:57 GMT
References: <3000@crash.cts.com> <13468@etana.tut.fi>
Sender: News@tut.fi
Reply-To: mk59200@korppi.tut.fi (Kolkka Markku Olavi)
Organization: Tampere University of Technology, Finland
Lines: 23

In article <13468@etana.tut.fi> mk59200@korppi.tut.fi (Kolkka Markku Olavi) writes:
>The CoreTest disk benchmark program has been mentioned many times
>recently.  Is this program freely distributable, and if it is,
>where can I get (by FTP) a copy?

OK, thanks for those who replied.  It's free and I FTP'd it
(version 2.9) from chyde.uwasa.fi.

Now, running it gave some interesting results, and I'd like to
know if others have noticed something like this:
using the Microsoft EMS driver (EMM386.SYS) cuts transfer speed to half!

The computer is Nokia (a.k.a Alfaskop) 4TT m336, with a 100MB SCSI
disk and Adaptec controller.  (don't know the exact model of controller
and disk)  The results:
without EMM386: transfer 897.2 kB/s, av. seek 22.4 ms,
with EMM386:	transfer 473.9 kB/s, av. seek 23.2 ms.

Is this unique with EMM386 or do all EMS drivers behave similarily?

--
	Markku Kolkka
	mk59200@tut.fi