Need help with slow

SuperCompu2 · Dec 15, 2012, 03:47 PM

I just received a MBA off ebay that has surprisingly high CPU activity, and as a result the computer is running very slowly. Attached is a screenshot of my activity monitor in case anyone has any suggestions.

My model is the 1.8GHz 1,1 model, with 64gb SSD.

Thanks!

wolfpuppies3 · Dec 17, 2012, 09:02 AM

Examine each line of that to determine which processes are taking up the memory. Mine runs at around 10-12% system use with six tabs open in Chrome and a number of other processes going on as well.

How much memory do you have? I am running 8 GB on this machine.

theSeb · Dec 17, 2012, 09:53 AM

Quote:

Originally Posted by wolfpuppies3

Examine each line of that to determine which processes are taking up the memory. Mine runs at around 10-12% system use with six tabs open in Chrome and a number of other processes going on as well.

How much memory do you have? I am running 8 GB on this machine.

I am not sure how this bit of advice about memory helps.

The problem is that kernel_task is hogging the CPU. Why does the kernel_task process hog the CPU? It can be because of a multitude of things, but usually indicates the need for some serious house keeping, or a complete and clean OS X reinstall, if one has not been done.

http://www.google.co.uk/search?q=kernel_task+high+cpu

Isamilis · Dec 17, 2012, 10:16 AM

Just curious. Why is in the screenshot, kernel_task is 32 bit app, instead of 64 bit? I've checked mine, it showed 64 bit for sure. Do you use 32 bit mode? Is this really original mac "kernel_task" process? What version of OSX did you use?

Satori · Dec 17, 2012, 10:39 AM

Quote:

Originally Posted by Isamilis

Just curious. Why is in the screenshot, kernel_task is 32 bit app, instead of 64 bit? I've checked mine, it showed 64 bit for sure. Do you use 32 bit mode? Is this really original mac "kernel_task" process? What version of OSX did you use?

Good point. The MBA rev A shipped with leopard which could run the kernel as 32 or 64 bit. I'm not sure if it will address the OP's problem but it could be worth rebooting while holding down the 6 & 4 keys to make sure the 64 bit kernel loads.

Dec 15, 2012, 03:47 PM	#1
SuperCompu2 macrumors 6502a Join Date: Jul 2006 Location: Woostah	Need help with slow I just received a MBA off ebay that has surprisingly high CPU activity, and as a result the computer is running very slowly. Attached is a screenshot of my activity monitor in case anyone has any suggestions. My model is the 1.8GHz 1,1 model, with 64gb SSD. Thanks! Attached Thumbnails __________________ PowerMac G5 2GHz DP/3GB/1TB/10.5.8 Canon Rebel XT MacRumors Scavenger Hunt Score: 1
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Dec 17, 2012, 09:02 AM	#2
wolfpuppies3 macrumors 6502 Join Date: Jun 2012 Location: Virginia, USA	Examine each line of that to determine which processes are taking up the memory. Mine runs at around 10-12% system use with six tabs open in Chrome and a number of other processes going on as well. How much memory do you have? I am running 8 GB on this machine. __________________ 2012 MBA 13, 2 Ghz i7, 8 GB RAM, 512 GB SSD; 2011 MBA 11, 1.8 Ghz i7, 4 GB RAM, 256 GB SSD; 2010 MB Pro 15, 2.66 Ghz i7, 8 GB RAM, 512 GB SSD; two iPad 3s and a mini, two iPhones and a bunch of iPods
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Dec 17, 2012, 10:16 AM	#4
Isamilis macrumors regular Join Date: Apr 2012	Just curious. Why is in the screenshot, kernel_task is 32 bit app, instead of 64 bit? I've checked mine, it showed 64 bit for sure. Do you use 32 bit mode? Is this really original mac "kernel_task" process? What version of OSX did you use?
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