Re: Xcode drives kernel_task insane
Re: Xcode drives kernel_task insane
- Subject: Re: Xcode drives kernel_task insane
- From: Tom Harrington <email@hidden>
- Date: Wed, 30 Jun 2010 10:49:49 -0600
On Tue, Jun 29, 2010 at 5:24 PM, Jean-Daniel Dupas
<email@hidden> wrote:
>
> Le 30 juin 2010 à 01:12, Tom Harrington a écrit :
>
>> I'm using Xcode 3.2.3 on Mac OS X 10.6.4, on a MacBook Air with a
>> 1.86GHz Core 2 Duo.
>>
>> When I run and use Xcode, kernel_task draws excessive amounts of CPU,
>> often over 100% of a core.
>>
>> This can happen in a variety of situations, even just typing into a
>> source code file. The kernel uses so much CPU that at times it's hard
>> not to out-type Xcode. This problem is easily reproducible-- just
>> open a random source file and hold down the "/" key. By the time I
>> get to the far side of the screen, kernel_task is at 120% of CPU and
>> Xcode can't keep up with keystrokes (i.e. the rate of new slashes is
>> noticeably slower).
>>
>> This is hardly the fastest Mac around but it's always been adequate
>> for Xcode until recently. I'm not sure if it's the recent Xcode
>> release or the recent OS upgrade. Does anyone have any suggestions?
>
> Can't reproduce with the same OS and Xcode version on a MacBook Pro Core 2 Duo, 2.2 Ghz. The kernel task does not excess 4% of the CPU.
It's been suggested to me off-list that this is related to the MacBook
Air's power management in high-temperature situations, which would
make it an Air-only issue. I'll be attempting to verify this over the
next day.
--
Tom Harrington
email@hidden
AIM: atomicbird1
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