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From: reisert@mast.enet.dec.com (Jim Reisert)
Newsgroups: comp.os.msdos.desqview
Subject: Re: Qemm slows floating point
Message-ID: <22671@shlump.lkg.dec.com>
Date: 14 May 91 18:37:07 GMT
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Organization: Digital Equipment Corporation - Maynard, MA
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In article <1991May14.142323.1929@maytag.waterloo.edu>, dmurdoch@watstat.waterloo.edu (Duncan Murdoch) writes...
>In article <1991May14.123233.17734@cbfsb.att.com> feg@cbnewsb.cb.att.com (forrest.e.gehrke) writes:
>>I have a Gateway 386/33 with Micronics Asic motherboard
>>and no coprocessor.  4MB ram, 32 ram cache.
>>
>>When I load qemm.sys and run a Whetstone benchmark (or any
>>floating point operations program), I find that there is
>>about a 30% reduction in speed.
>
>So it appears the only solution is to buy a 387 - then your program will
>be slower on the first pass through each instruction, but will go full
>speed after that.

This doesn't seem right.  I have a Cyrix coprocessor in my 386 box, and I
suffer similar speed penalties as Forrest, when using programs that make
heavy use of the coprocessor.  It must be something else.

- Jim

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James J. Reisert                Internet:  reisert@mast.enet.dec.com
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