CPU % usage — reduce or control?

Skype and a few other apps use a lot of CPU%. On my Air, the fan comes on and the machine runs hot. Usually >100 degrees for Skype. Is there some means to reduce this usage. Is there an app that will limit the % of resources a specific app can use? If so, point me in that direction. Or any other useful advice welcome.

MacBook Air, OS X El Capitan (10.11)

Posted on May 17, 2016 4:11 AM

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4 replies

May 18, 2016 6:59 PM in response to Ian999

Hi Ian999,


Thanks for using the Apple Support Communities! I'm sorry to hear that you are having these concerns regarding processor usage and heat generation on your MacBook Air. Depending on the situation, this may be expected behavior, or it may indicate that an app isn't working correctly (a "runaway application"). For more information on heat management and application activity, you may find the information and troubleshooting steps outlined in the following articles helpful:


Mac notebooks: Operating temperature - Apple Support

Apps can affect Mac performance, battery runtime, temperature, and fan activity - Apple Support


Regards

May 18, 2016 6:59 PM in response to Ian999

some have reported updating or downgrading Skype on the mac can fix this

if that is not available to you:


reset your SMC

Reset the System Management Controller (SMC) on your Mac - Apple Support

then boot into safe mode

Try safe mode if your Mac doesn't finish starting up - Apple Support


if problem persists please post an etrecheck report for further analysis.

https://etrecheck.com


having a 3rd party app manage your apps or your internal cooling is not a good idea, it's recipe for disaster.

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CPU % usage — reduce or control?

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