It takes that on your machine with your particulars. on 12/4/02 8:24 AM, Andrew Kershaw at [EMAIL PROTECTED] wrote:
>> 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 -- 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
