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http://www.insanely-great.com/news.php?id=1048
Article details Classic memory limitations
By ron carlson, Insanely Great Mac
October 2nd 2002
Whether its created by technical or political issues, the point is running OS 9.2.2
under X isn't a long-term solution
The AppleCare Knowledge Base includes an article entitled Mac OS X: How to Set Memory
Use for Classic Applications. The title pretty much says it all. However, as with
contracts and law, the devil is in the details:
As with Mac OS 9, you can set the memory used by a Classic application in Mac OS X.
Select the application and choose Show Info from the File menu. Choose Memory from the
pop-up menu and type the amount of memory to use.
Because Mac OS X uses memory differently, you actually set the relative amount
(emphasis added) of memory available to the application in Classic. If you start up
your computer using Mac OS 9, then the application will use the amount of memory you
have set.
Note: Mac OS X 10.2 limits the amount of memory shared among all running Classic
applications to less than 128 megabytes [sic].
A wonder...
Classic emulation is a wonder of modern software engineering. Quite simply OS 9 apps
do just about everything -- some hardware specific functions aside -- that they do
when you run them directly under Classic natively. Nevertheless, the setting of a hard
limit on memory allocation, regardless of how much physical RAM is installed, seems an
unusual step to take or, if one assumes this is a technical issue, an unusual problem
not to have done something about.
In the real world (i.e. where we live), 128MB of RAM is an absurdly small amount of
memory. A simple example of this is Photoshop and the fact that editing anything other
than small .gif and .jpg files will require the full memory allocation for all Classic
apps.
Apple's public pronouncements alone don't indicate how badly they want and apparently
need you to switch to OS X.
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