Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!elroy.jpl.nasa.gov!swrinde!mips!apple!keith
From: keith@Apple.COM (Keith Rollin)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Memory Manager INIT?
Keywords: memory manager init
Message-ID: <53713@apple.Apple.COM>
Date: 6 Jun 91 18:53:26 GMT
References: <676094904.3@blkcat.FidoNet> <1991Jun5.155830.29844@guinness.idbsu.edu> <13953@dog.ee.lbl.gov>
Distribution: all
Organization: Apple Computer Inc., Cupertino, CA
Lines: 34

In article <13953@dog.ee.lbl.gov> osborn@ux1.lbl.gov (James R Osborn) writes:
>
>I was using the Memory Manager INIT with my IIci prior to installing
>System 7.  The documentation that came with the init did a nice job
>(I thought) of explaining what was wrong with the memory manager on
>various Macs including the IIci.  The problem made it very inefficient
>under certain circumstances when allocating memory (Ptrs and Handles).
>
>I'd like to know from someone in the know if this really was or is a
>problem with the ROMs for certain machines?  Has System 7 patched or
>otherwise corrected the memory manager so that this init is no longer
>necessary?  If not, then is this init approved of by anyone at Apple
>for correcting the problem?

Excutive summary:

- There really was a problem in the LC, IIsi, IIci, and IIfx.
- System 7.0 fixes the problem.
- The problem affects only 2 or 3 programs. If you aren't running
  them, then you will not see a problem. None of these programs
  are in the "Top 100 Macintosh Programs of All Time".
- DON'T run the init under 7.0, as it will re-introduce bugs that
  7.0 fixes.
- The INIT was written as a test to see if the specific bug in
  question could be fixed. In its current form, it was never
  intended to leave Apple, and was never tested. Although it was
  written by someone at Apple (me), it is in no way approved.

-- 
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Keith Rollin  ---  Apple Computer, Inc. 
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"But where the senses fail us, reason must step in."  - Galileo