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Re: Xcode 4 excruciatingly unresponsive
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Re: Xcode 4 excruciatingly unresponsive


  • Subject: Re: Xcode 4 excruciatingly unresponsive
  • From: David Frantz <email@hidden>
  • Date: Wed, 20 Apr 2011 16:57:30 -0400

This is not inconsistent with what I say when first installing XCode 4.   In this case I really hadn't done slot with it to justify the load on the system.   

Sent from my iPad

On Apr 20, 2011, at 6:59 AM, Nik Heger <email@hidden> wrote:

Just anecdotal but I found XCode 4 using LOTS and LOTS of CPU during normal editing. And that's on a tiny project with something like 20 classes. I'd shudder to think how it would perform on our main Java project with 1000s of source files... 

I guess the auto complete and other features just aren't particularly efficient. 

I noticed this because my MacBook Pro lasts only around 3 hours when I use XCode. When I do Eclipse - which has much better auto complete and simply way more features, and our projects contains 1000s of files - I can go 6 hours easily. 

I was kind of keeping an eye on it after that, and it doesn't seem to use up too much when not in use, but the CPU spikes every time I make changes to a source file. I suspected the iOS simulator, but that's not it. It's just Xcode, and it does it whenever I edit a file.

I would love to file a bug on this but not quite sure how. "It's a CPU hog" is not a very clear description... 

N.

PS: I am thinking about getting a quad core i7 MBP because of XCode. Hmmm... perhaps that was their plan all along? ;)

On Wed, Apr 20, 2011 at 5:09 AM, James Bucanek <email@hidden> wrote:
Bill Bumgarner <mailto:email@hidden> wrote (Tuesday, April 19, 2011 11:14 AM -0700):
>
> That GC is busy just means that there is a ton of allocation activity going
> on.

Makes sense.

> The sample from the main thread indicates that there is a ton of ongoing
> object archival occurring.

Agreed.

> Is project particular large?

12 targets.

> Has a lot of files?

600+ modules (1,200 files)

> In any case, file a bug and attach the samples.

Will do.


James Bucanek
____________________________________________________________________
Author of Professional Xcode 3                   ISBN: 9780470525227
<http://www.proxcode3.com/>
and Learn Objective-C for Java Developers        ISBN: 9781430223696
<http://objectivec4java.com/>

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References: 
 >Re: Xcode 4 excruciatingly unresponsive (From: James Bucanek <email@hidden>)
 >Re: Xcode 4 excruciatingly unresponsive (From: Nik Heger <email@hidden>)

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