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You are here: MacNN Forums > Enthusiast Zone > Classic Macs and Mac OS > increased memory fragmentation in OS9?

increased memory fragmentation in OS9?
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Dedicated MacNNer
Join Date: Oct 1999
Location: Seattle, WA, USA
Status: Offline
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Dec 3, 1999, 08:01 PM
I am running a Wallstreet 233/512L2 with 160MB or RAM (I do not use VM). OS9 is adequately fast and VERY stable on my system, but I have noticed drastic memory fragmentation.

I just restarted the computer, launched Eudora 4.2, Navigator, and Acrobat Reader, in that order. Then I quit out of the applications in the reverse order in which they were opened. This was it - the computer was only running about 1/2 an hour from restart to when I quit out of the apps. My largest available block was bout 120 MB before launching all of the apps. Afer quitting them it was only 92 MB.

This is a chronic problem which obligates me to reboot every couple of days. Is this a result of the increased use of guard pages in OS9 to prevent total system crashes?
Fresh-Faced Recruit
Join Date: Apr 1999
Location: San Diego, CA USA
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Dec 4, 1999, 07:03 AM
Have you tried MacOS Purge? I can usually reclaim up to 7MB RAM after quitting programs. There's no getting around the fragmentation, especially with VM off. I run with VM off only because I want speed and stability. Hopefully things will get better in the next major OS release (i'm praying for dynamic mem alloc)

47 Ronin Multimedia
47 Ronin Multimedia
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