I've recently noticed that kernel_task is constantly using 11% of CPU on my 2.53 GHz MacBook Pro with OS X 10.6.6. Try disconnecting from your network. You may have some device that is actually ...

Thanks to Howard Oakley for explaining something that has bothered me for years. When my iMac is struggling under a heavy CPU load, performance suffers, and I can hear its fans ramping up. Checking in ...

MacFixIt reader "Martin V." writes in to alert us about an ongoing issue with his MacBook Air. The process 'kernel_task' uses an inordinate amount of system resources causing his system to run ...

According to an old thread (10 months at the time of writing) over on Stack Exchange, charging a MacBook Pro using the ports on the left side can cause high kernel_task CPU usage and overheating.

I'm running OSX 10.2.2 on a Graphite iMac DV (400MHz, 512MB) and something very odd has started to happen in the last couple of days.<BR><BR>I have an external CD-RW drive which connects via Firewire ...