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Re: CoreData Performance Mystery

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Re: CoreData Performance Mystery

Subject: Re: CoreData Performance Mystery
From: Jens Alfke <email@hidden>
Date: Sat, 16 Feb 2008 08:51:34 -0800


On 15 Feb '08, at 8:26 PM, Mike McNamara wrote:

That above while loop appears to take nearly 1 second per 50 book objects. ???

Any time something is too slow, my first response is to sample the app. You can use Activity Monitor to do this, or just type "sample MyAppName 2" in a shell. Even if most of the time is spent in some system framework, the symbol names are usually clues about what's going on.

You can also use Shark if you want to get into more serious profiling, but sampling is really quick and usually helpful.

—Jens_______________________________________________

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References:  
  >CoreData Performance Mystery (From: Mike McNamara <email@hidden>)




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