Snow Leopard Memory Leak & Fix

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Uploaded by on Oct 11, 2009

This is an interesting bug with Snow Leopard, and a surprising way to fix it. If your Mac has been going slow / crawling to a halt / beachballing a lot, this will probably fix it (somehow). 10.6.1. Hopefully they fix this in 10.6.2.

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Uploader Comments (dataxpress)

  • yep sorry dude, my bad. I mistakenly got your post bundled up with some other ppl who were using the same technique to (pointlessly) free up Inactive mem.

  • @thescourgeofathousan okay, carry on.

  • However when the system runs out of free memory (the green) OSX uses the oldest inactive memory.

    So really you dont need to only be concerned with how much green is in the trusty pie chart but how much green+blue (free+inactive).

    The blue area growing is not a memory leak.

    Over time as you run and close and run and close apps the memory available SHOULD shift from predominantly green to blue.

    Active memory growing over time and never being realease even in the face of app closure is a problem.

  • I know how inactive memory works. In this video I'm displaying Active ("the yellow") memory climbing to very high levels with nothing using them and not freeing until disk perms are run.

    This seems to have been fixed in 10.6.2.

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  • Upgrading to 8GB of RAM is really cheap, just saying ;)

  • nice this works great, thanks

  • wow... it works... thanks a lot! I was using iFreeMem app... it works too but cost money.

  • I have V10.5.6 and have the memory leak problem however disk permissions is not the problem. I discovered that my memory hog is Firefox. Quitting Firefox freed up over 1.5 Gb of memory

  • Hey this is because the inactive memory is memory that is no longer being used but has not been free'd incase the apps that were using it are run again.

    Some of that inactive memory was generated by the apps themselves and some was loaded from files.

    If you update those files the memory becomes stale and is therefore unusable and will be free'd.

    Running a repair disk permissions changes the timestamp of all files on the disk. so all inactive memory that was loaded from file will be free'd.

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