How to fix kernel_task CPU usage on Yosemite
Yesterday I had to hand in my almost new MacBook Pro (Retina) for repair due to a broken logic board. This meant that I had to go back to my old laptop for a little bit. In preparation for this, I dusted off my old MacBook Pro this weekend so that I would have something from in the meantime. Since it was due for an upgrade, I decided to install the Yosemite …