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- Xref: sparky comp.sys.mac.system:11781 comp.sys.mac.misc:16332
- Path: sparky!uunet!infoserv!infoserv.com!erics
- From: erics@infoserv.com (Eric S. Smith)
- Newsgroups: comp.sys.mac.system,comp.sys.mac.misc
- Subject: Re: Should I turn 32-Bit Addressing On or Off?
- Date: Thu, 10 Sep 92 08:30:14 PDT
- Organization: Reigning Cats and Dogs
- Message-ID: <D2150056.d9e0mi@erics.infoserv.com>
- Reply-To: erics@infoserv.com
- X-Mailer: uAccess - Macintosh Release: 1.5v4
- Lines: 29
-
-
- triantos@acsu.buffalo.edu (Nick B Triantos) writes:
-
- > vito@well.sf.ca.us (Andris Paul Vitols) writes:
-
- > Pretty weird... I've been using system 7 on an LC II for several months and
- > have had 32-Bit Addressing off the whole time. What are the pros and cons
- > of this feature? Will it de-stabilize things? Speed things up? Thanks...
-
- > Basically, unless you have more than 8MB of RAM (be it physical or virtual),
- > there is almost no reason to turn it on. 32-bit addressing allows your
- > computer to utilize any RAM above 8MB.
-
- 32-bit addressing is necessary to access physical memory above 8 MB.
- The amount of virtual memory that can be accessed in 24-bit mode, on
- machines that support virtual memory, is 14 MB less 1 MB per NuBus card.
-
- This makes virtual memory an attractive option for users with less than
- 8 MB physical but who need somewhat more than that and would prefer not
- to use 32-bit mode. I used this setup for a few months but was unhappy
- with the degradation I saw in system performance. So I bought more RAM,
- turned on 32-bit mode and had to upgrade a couple of my inits (er, extensions).
-
- -----
- Eric Smith
- erics@infoserv.com
- CI$: 70262,3610
-
-
-