>OS 9.1 doesn't take 60Mb on my PB5300 (64Mb installed), more like >20Mb. I've heard that it uses an amount proportional to available >RAM. I know this is true for the Disk Cache but my understanding is >that it is for more than that.
Running 9.0.4 and 9.1 on my Wallstreet w/ 96MB RAM, I lost about 55MB of available memory to the system. Running 9.1 in 192MB RAM took about the same, not adjusting upwards after increasing my installed RAM. Running 9.2.2 in 192MB of RAM takes 60 - 70(!)MB. Hence, OS 9.x takes ~60MB. It is certainly possible to run OS 9 in 80MB of RAM, but in my experience, 9.x loves RAM and gobbles up all it can. With 80MB to chew on, it will inflate to 50-60MB, leaving very little for applications. Turning on VM may decrease the RAM alloted to the system, but on PowerBooks it has tradeoffs. (Slow HD speed, battery consumption, generally poor performance, etc.) Are you satisfied w/ the speed of your 5300? 9.1 is slow on that vintage (I know, I run it on my 2 6100s), and to get it down to 20MB, you must be using VM... I can't imagine what kind of performance hit you are taking.... A friend w/ a 333MHz iMac ran 9.0.4 in 64MB RAM w/ VM for the longest time, and it was dog slow. Still, I'm impressed that you can get 9.1 down to 20MB of RAM. I'd love to hear what you have installed in the way of system components... OS 9.0's minimum system requirements from <http://docs.info.apple.com/article.html?artnum=60498> >40 MB of RAM (32 MB of physical RAM, with virtual memory set to at >least 40 MB). >The minimum amount of RAM will let the computer perform only at >minimum speeds. Installing additional RAM will increase the system >performance. > >With virtual memory turned off there may be up to a 10 MB difference >in RAM usage. This difference is normal and due to code-mapping. OS 9.1's minimum reqs <http://docs.info.apple.com/article.html?artnum=106125> >At least 32 MB of RAM with virtual memory set to 64 MB. >The minimum amount of RAM will let the computer perform only at >minimum speeds. Installing additional RAM will increase the system >performance. > >With virtual memory turned off there may be up to a 10 MB difference >in RAM usage. This difference is normal and due to code-mapping. Apple doesn't give a good feel for how much physical RAM is required to run OS 9 when not using VM. But if 40MB is required w/ VM, and it is decreased by 10MB, then about 50MB without VM should be right. Peace, Drew -- <http://homepage.mac.com/alk/> "There are of course many problems connected with life, of which some of the most popular are `Why are people born?' `Why do they die?' `Why do they spend so much of the intervening time wearing digital watches?'" -- Douglas Adams' "The Hitchhiker's Guide to the Galaxy." -- PowerBooks is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> PowerBooks list info: <http://lowendmac.com/lists/powerbooks.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
