Re: [Core Data] Improve save performance ?
Re: [Core Data] Improve save performance ?
- Subject: Re: [Core Data] Improve save performance ?
- From: Guy English <email@hidden>
- Date: Mon, 16 Jan 2006 17:13:28 -0500
Hi,
On 1/16/06, Eric Morand <email@hidden> wrote:
> I'm ashamed to admit that I don't know how to use Shark...
Yeah profilers can look scary.
Here's a quick primer on Shark:
http://developer.apple.com/tools/sharkoptimize.html
Basically in XCode:
Debug -> Launch Using Performance Tool -> Shark
Click OK in the dialog that comes up and your app will start. Add a
new object and before you save in the app click 'Start' in the little
Shark window. Save in your app. Press Stop in the Shark window. You'll
get a screen full of info. In the Heavy (Bottom-Up) pane you'll the
methods that you spend the most time in. Choose one and you'll get a
Heaviest Path - that's the call stack that cost you the most time.
Poke around until you get a feel for whats going on.
Hope that helps a little,
Guy
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