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Compile
Sep 10, 2013, 06:48 PM
I did a search but couldn't find anything on it that pertained to my issue.

For some odd reason "kernel_task" random spikes to 280% usage for about 3 mins or more. This is a brand new Macbook Air (I got it last night), I have tried letting it do its thing but it constantly does this.

I'm at my wits end as it completely bogs down my system, and fans got to max rpm.

Is there anything I can do to fix this?



robvas
Sep 11, 2013, 07:08 AM
Tried an SMC reset yet?

Compile
Sep 11, 2013, 07:25 AM
2x and tried pram 2x

robvas
Sep 11, 2013, 09:12 AM
Has it completed spotlight indexing yet? It's going to chug for a while until that's done.

Weaselboy
Sep 11, 2013, 10:15 AM
Kernal task is just sort of the gateway manager for other processes running and is normally not what is directly using the CPU. Next time this happens open Activity Monitor and select "All Processes" in the dropdown at the top, then look in the CPU column for what is munching your CPU cycles.

Compile
Sep 11, 2013, 01:09 PM
It's literally kernel_task.

I just formatted and reinstalled. My suspicion is that it was something i installed.

Will report back if it happens again.

Weaselboy
Sep 11, 2013, 01:16 PM
It's literally kernel_task.

I just formatted and reinstalled. My suspicion is that it was something i installed.

Will report back if it happens again.

I realize that, and I think you misunderstand what I am saying. That kernel_task process is more of a traffic cop that manages other processes rather than do much directly on its own. So normally, if kernel_task is running high CPU it is because some other process being manages by kernel_task it running amok and not an issue kernel_task itself. To see what the underlying process is that us causing the issue you need to look at all processes for CPU hogs.

Compile
Sep 11, 2013, 03:06 PM
From what I can tell there isn't. I will look deeper into it.

Compile
Sep 11, 2013, 06:42 PM
Kernel_task is the only process using over 20% (300 to be exact).

I'm really pissed now. :(

Compile
Sep 11, 2013, 07:40 PM
SMC error code PFM006. Looks like a sensor is dead. :(