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Old Jun 4, 2009, 11:41 PM   #1
Geoff Myers
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Join Date: Mar 2007
Free Memory Disappears Mysteriously (Activity Monitor Doesn't Show!)

Okay, I've just finished doing an Archive & Install of Mac OS X Leopard to fix this issue, but it did not get fixed.

The problem: I have 4 GB memory (should be plenty for what I do). Yet, when I have virtually nothing running, a large amount of memory is being used. When I see what's happening in Activity Monitor, the sum for the column called "Real Memory" does NOT add up to the total "Used Memory" shown in the bottom left of the window... The column sum is significantly LESS than the total used memory. It's like there's some invisible process not even Activity Monitor shows that is hogging RAM. This problem seems to be constant; it's not intermittent.

Maybe I'm misunderstanding what the column "Real Memory" means, but shouldn't the total for that column add to the total used memory?

I have attached a screenshot that demonstrates this problem. Not shown: I have "All Processes" selected under "Show."

Any suggestions would be greatly appreciated. Thanks!

System Specs: MacBook Pro 15" Core 2 Duo, 2.4 GHz, 4 GB RAM, 160 GB HD, Mac OS X Leopard 10.5.7
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Geoff Myers, geoff@geoffmyers.net
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MacBook Pro 17-inch 2.66GHz Core i7 | 8GB RAM | 60GB SSD + 1000GB HDD (replaced optical drive)

Last edited by Geoff Myers; Jun 5, 2009 at 12:04 AM.
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