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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!gatech!paladin.american.edu!auvm!REDDPGMING.WIN.NET!DGWDGW
- Mailer: WinNET Mail, v1.0
- Message-ID: <176@reddpgming.win.net>
- Newsgroups: bit.listserv.win3-l
- Date: Tue, 29 Dec 1992 23:59:32 -0600
- Reply-To: "Dennis G. Winter [red D]" <dgwdgw@reddpgming.win.net>
- Sender: Microsoft Windows Version 3 Forum <WIN3-L@UICVM.BITNET>
- From: "Dennis G. Winter [red D]" <dgwdgw@REDDPGMING.WIN.NET>
- Subject: re: Re[2]: Speed in Windows
- Lines: 44
-
- >From all that it is quite clear that qemm 'bottlenecks' the system speed
- >up to the mentionned 25%. Furthermore & depending more or less on the
- >type of video card used, qemm 'eats' up to 70% of your raw video speed.
-
- Willy, you smoking something strange? If QEMM has had any effect on
- the speed of my system, it has made it faster. 25% and 70% are
- numbers big enough to notice without running any diagnostics.
- Besides, QEMM is virtually disabled when runing windows.
-
- >Why it does so is not quite clear & a number of hypothese have been
- >put forward. Fact is that it does. If you do not believe it, just try
- >to load qemm & run a benchmark like checkit. Then set up yr system with
- >himem.sys & compare speeds. Yre in for a surprise. Using the 'stealth'
- >possibility with qemm makes speed even worse & mostly there is no reason
- >to use it.
-
- No reason to use it unless you want to get enough upper memory to
- load most device drivers and TSR's high.
-
- >Furthermore there is basically no need to use qemm as an EMS manager
- >with windows. Windows has it's own one, so you can free up the EMS
- >page frame that qemm installs. Unless you might think you need it, but
- >after quite some years of use & experimenting it turns out that we don't
- >need it.
-
- QEMM provides EMS and XMS from the same memory pool, something that
- himem and emm386 cannot do. You cannot free up the page frame for
- EMS memory with either QEMM or EMM386 if you need EMS. If none of
- your applications needs EMS memory, the NOEMS switch works with
- both programs, eliminating the 64K page frame, giving you 64K more
- UMB's. If you use the NOEMS switch with QEMM, you cannot use
- stealth. Unless you have a very complicated setup, stealth will
- recover more than the 64K page frame it requires to work.
-
-
-
-
- D.
- <_____________________________________________________________________>
- <Dennis Winter red D [Analyst, Programmer, Quality Assurance] >
- < [IBM Mainframe, Tandem, PC] >
- <LosGatos CA Internet: dgwdgw@reddpgming.win.net >
- < CIS: 71334,2372 >
- <_____________________________________________________________________>
-