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technologist

 
Member Since: Mar 30, 2004
Location: USA
Posts: 4,744
technologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond repute
Mac Specs: 12" Apple PowerBook G4 (1.5GHz)

technologist is offline
Ugh. Where to start?

Memory management under OS 9 is as much art as science.

First, some definitions.

Virtual memory you know. It's a trick that uses the hard disk as additional memory.

A RAM disk is exactly the opposite: a trick for using the memory as a super-fast disk. You can "save" files to this "disk" and read from them very quickly. The files are only copied to disk when the system is shut down; it's not a very safe place for your files. (It was once possible to load your OS on this disk, and have an extremely fast system that never touched the hard disk..)

RAM disks are for people with lots of physical memory that need absolute speed. This is not the case for your friend. We need to turn that off.

Now, with respect to the virtual memory size...900+ is almost certainly too big. In general, with the classic Mac OS, you'd never go above twice the physical memory size (256MB). Set it to 512MB at most.

So now we know where the problem is. [Continued in next post]
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