> I've got a Powerbook 2000 "firewire" (Pismo), with a gigabyte of RAM. 
> I bought this vast quantity of memory because I use a graphics program 
> to render huge image files, and cannot tolerate the several-hour 
> delays imposed by using virtual memory. Everything works delightfully 
> when booted up in OS 9.2.2. I cannot currently afford to upgrade my 
> graphics application to X, so must either run in OS 9 or in classic 
> under Jaguar. Before Jaguar, I was unable to launch this program in 
> classic because pre-Jaguar versions of X would not allocate more than 
> 200 MB of memory to classic applications. Jaguar, however, seemingly 
> allows my classic application to claim 800 MB. Unfortunately, when I 
> start rendering under classic, things slow down to a snails pace, 
> suggesting to me that Jaguar is in fact using some sort of virtual RAM 
> scheme. How do I turn this off? I would rather not keep having to 
> re-boot in OS 9!
>
> I realize this is more of an OS X question, but maybe some of you know 
> the answer. Thanks for your help!

All Unixes have Virtual Memory (although, not the same kind of VM 
that's in OS 9). The VM in OS X serves to provide the Protected Memory 
that makes OS X more stable than OS 9. OS X, like all Unix OS's, does 
not function without this (or at least, does not function well).

Running a 3D rendering App in Classic is just a Bad Idea (TM), anyway. 
Apps with high demands like that should -ALWAYS- be run in the native 
OS.


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