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- Path: sparky!uunet!gatech!news.byu.edu!yvax.byu.edu!cunyvm!i18bc
- Newsgroups: comp.os.os2.misc
- Subject: Re: Why disable shadow RAM?
- Message-ID: <92258.184743I18BC@CUNYVM.BITNET>
- From: Spartacus At Cuny <I18BC@CUNYVM.BITNET>
- Date: Monday, 14 Sep 1992 18:47:43 EDT
- References: <1992Sep11.202523.10922@ornl.gov><1992Sep11.212842.13052@njitgw.njit.edu>
- Distribution: usa
- Organization: City University of New York/ University Computer Center
- Lines: 29
-
- In article <1992Sep11.212842.13052@njitgw.njit.edu>, dic5340@hertz.njit.edu
- (David Charlap) says:
- >
- >In article <1992Sep11.202523.10922@ornl.gov> lio@ornl.gov (MILLION D L) writes:
- >>I read in the FAQ an offhand remark that one should disable shadow RAM
- >>for better OS/2 performance. This was not explained, however, and I
- >>am still wondering why I should do this. If the object is simply to
- >>retrieve more memory for OS/2, that doesn't work in my machine--that
- >>384K remains unavailable whether shadow RAM is disabled or not. If
- >>there is some other reason for disabling it, I'd sure like to hear it.
- >
- >Nope, that's the reason. To recover the memory that shadowing wastes.
- >Considering that OS/2 doesn't use the ROMs anyway (except for DOS
- >sessions, and it provides its own shadowing for that), to give up
- >memory to them is wasteful of precious resources.
-
- I decided to leave hardware shadowing on simply because I saw no
- benefit in having OS/2 do the same. I removed the Rom shadowing
- on line off the configuration file. The POST test run a
- whole heck of a lot faster on bootup. But then again I'm operating
- under 8 megs.
- -------
- ------------------------------+ All The Best,
- Reply To: |
- | Edward Galarza,
- I18BC@CunyVM.Cuny.Edu | Brooklyn College Of The
- I18BC@CunyVM.BitNet | City University Of New York
- ------------------------------+ "Que viva el OS/2!"
- New accounts above 8-)
-