RE: NSURLDownload delegate methods seperate thread
RE: NSURLDownload delegate methods seperate thread
- Subject: RE: NSURLDownload delegate methods seperate thread
- From: Colin Deasy <email@hidden>
- Date: Wed, 9 Sep 2009 17:58:33 +0000
- Importance: Normal
I just tried Apple's sample code QuickLookdownloader which behaves in exactly the same manner :-/
Shark didn't give me back anything useful either!
> CC: email@hidden; email@hidden
> From: email@hidden
> To: email@hidden
> Subject: Re: NSURLDownload delegate methods seperate thread
> Date: Wed, 9 Sep 2009 09:57:45 -0700
>
>
> On Sep 9, 2009, at 8:35 AM, Colin Deasy wrote:
>
> > Ok so I have tried both ways, using the main thread for the download
> > messages and using NSOperationQueue to create separate threads & run
> > loops.
> > I'm still getting 30% CPU though. When I run it, my app seems to
> > send the
> > kernel_task a bit crazy (that's where most of the CPU is going).
>
> Sample your process and see what the heck it's doing when this is
> going on. Sounds like you've got some code in an spin-loop.
>
> (If your process doesn't seem busy, use Shark or Instruments to sample
> all processes.)
>
> —Jens
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