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bobtomay

 
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Member Since: Dec 22, 2006
Location: Texas, where else?
Posts: 25,185
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Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1

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I would say your primary issue is not enough free space on the drive and what free space you do have is very fragmented.

You're down under 20% free space (some long time Mac users will contest my experience). But, I'm going to say if you're playing intense games that will also use a large amount of virtual memory, at 20% free space and especially on a Mac where you've never done a defrag, your virtual memory is scattered all over that drive.

I start noticing these issues myself at about 30% free space and in my past hardcore gaming days it became unbearable by 20% free space - and I contend it carries over into OS X the same as it does in Windows. Today, I attempt to maintain 40% free space on system drives of all sizes up to and including 1TB in size. I have never put an OS on anything larger than 1TB, so don't have any experience related to keeping a system running full bore vs free space on those 1.5-2TB drives.

You would probably see some improvement with a defrag, but with what you're doing - I would encourage you to free up some space. Try to get to 30-35% minimum and either run a defrag or create a bootable backup and restore your internal from the backup - this will in essence do a defrag for you.

Along with the above, if you haven't been doing any sort of maintenance, it's time to run a Repair DisK, Repair permissions and grab Onyx for some housecleaning - all these before the defrag or restoring from backup.

edit: If you have any questions about any of these steps, feel free to post back.

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In the Windows world, most everything folks don't understand is called a virus.
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