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Apple Computing Products:
macOS - Notebook Hardware
Need Help with Memory problem
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<blockquote data-quote="technologist" data-source="post: 90868" data-attributes="member: 4134"><p>Ugh. Where to start?</p><p></p><p>Memory management under OS 9 is as much art as science.</p><p></p><p>First, some definitions.</p><p></p><p><strong>Virtual memory</strong> you know. It's a trick that uses the hard disk as additional memory.</p><p></p><p>A <strong>RAM disk</strong> 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..)</p><p></p><p>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.</p><p></p><p>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. </p><p></p><p>So now we know where the problem is. [Continued in next post]</p></blockquote><p></p>
[QUOTE="technologist, post: 90868, member: 4134"] Ugh. Where to start? Memory management under OS 9 is as much art as science. First, some definitions. [b]Virtual memory[/b] you know. It's a trick that uses the hard disk as additional memory. A [b]RAM disk[/b] 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] [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Need Help with Memory problem
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