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From: chuck@umbc5.umbc.edu (Chuck Rickard; ACS (UGRAD))
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: QEMM slows down floating point!?!?
Message-ID: <4647@umbc3.UMBC.EDU>
Date: 10 Dec 90 04:47:08 GMT
References: <tas.660781039@tasman>
Sender: newspost@umbc3.UMBC.EDU
Reply-To: chuck@umbc5.umbc.edu.UUCP (Chuck Rickard)
Distribution: comp
Organization: University of Maryland, Baltimore County
Lines: 18

In article <tas.660781039@tasman> tas@tasman.cc.utas.edu.au (Tasman Derk Van Ommen) writes:

>I recently purchased a 386sx machine and since it came with the machine
>I installed Quarterdeck's QEMM memory manager.  I then ran some benchmarks -
>and found that my performance on floating point operations (I don't have
>a coprocessor) was down by 25% or thereabouts.  Does anyone have an
>explanation?

I'm having similar problems with HIMEM.SYS that comes with MS Windows 3.0.
Without it installed, the Norton 4.5 System Info (SI) rating is 17.1, but
with it installed, the SI drops to 14.9.  This seems to be mighty big CPU
hog if I ever saw one.  I tried QEMM and got no slowdown, but I had a
compatibility problem with WP 5.1 (It crashed when attempting a spell check).
Anyone else have any clues?  Oh, I might want to add that I do have a math
coprocessor installed (387sx).

Chuck Rickard
(chuck@umbc5.umbc.edu)