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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Mac OS X > How do you clear memory?

How do you clear memory?
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Feb 21, 2008, 04:22 PM
 
I have 4 gigs of RAM in my iMac. When I open programs my iStat's show that the memory utilization grows with each application opened. But as I close those applications the memory utilization doesn't appear to drop off, it's stays pretty much maxed out even if I close all of my applications.

Is it iStat's mis-reportig utilization or do I have some oddball memory leak?
     
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Feb 21, 2008, 04:32 PM
 
This sounds normal. It doesn't indicate a memory leak — that's just how OS X manages memory.
Chuck
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Feb 21, 2008, 04:53 PM
 
Thanks for the info, I won't worry about it then.
     
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Feb 21, 2008, 05:07 PM
 


/obvious
     
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Feb 21, 2008, 05:46 PM
 
Just to confirm Chuckit and for everybody's peace of mind:

Mac OS X: Reading system memory usage in Activity Monitor
     
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Feb 21, 2008, 06:14 PM
 
Very useful info TETENAL, great read. Now I understand completely what's going on with my memory usage.
     
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Feb 21, 2008, 07:12 PM
 
To answer your question, though, the only way to clear your memory is to reboot. Or to physically remove it and shake it like an Etch-a-sketch.
     
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Feb 21, 2008, 08:09 PM
 
Free memory is wasted memory.

Don't waste memory.
     
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Feb 21, 2008, 08:52 PM
 
Unused RAM is a terrible thing to waste.
     
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Feb 21, 2008, 11:58 PM
 
Originally Posted by wataru View Post
To answer your question, though, the only way to clear your memory is to reboot. Or to physically remove it and shake it like an Etch-a-sketch.
ROFL
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Feb 22, 2008, 12:01 AM
 
     
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Feb 22, 2008, 02:39 AM
 
Originally Posted by DKeithA View Post
Fixed.
     
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Feb 22, 2008, 05:15 AM
 
Indeed. People, this isn't OS 9. You don't want free memory. Having a huge chunk of inactive memory is just fine (because it means stuff will already be there when it's needed next time). No reason to panic.

What you want is no page-outs. If you see a lot of those it's time to get more memory.

Again, this isn't OS 9. Let the OS handle memory management for you. It's better at it than you are.
     
   
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