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Re: Xcode drives kernel_task insane
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Re: Xcode drives kernel_task insane


  • Subject: Re: Xcode drives kernel_task insane
  • From: Stuart Smith <email@hidden>
  • Date: Wed, 30 Jun 2010 09:50:28 -0700
  • Thread-topic: Xcode drives kernel_task insane

on 6/30/10 5:48 AM, email@hidden at
email@hidden wrote:

> Message: 7
> Date: Tue, 29 Jun 2010 17:12:43 -0600
> From: Tom Harrington <email@hidden>
> Subject: Xcode drives kernel_task insane
> To: email@hidden
> Message-ID:
> <email@hidden>
> Content-Type: text/plain; charset=ISO-8859-1
>
> 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?
>
> --
> Tom Harrington
> email@hidden
> AIM: atomicbird1

Tom,
 as you say, the MacBook Air is "hardly the fastest Mac around". That's one
way of putting it.

If this is a recent install of Xcode 3.2.3, it may be installing
documentation updates in the background. Try opening the Activity window and
clicking the giant red dot beside that task. That helped me out yesterday,
with a fresh install on one of the new MacMinis.

I don't know how to get Xcode to start the documentation download again.

Stuart



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