Core Data Instruments for the iPhone

Question

I'm trying to monitor my core data usage but all the Core Data instruments are greyed out in Instruments. It's also not available from the "Run with Performance Tool" in Xcode. It says that the Core Data instruments are for the Mac and it's not available on the iPhone, but I've heard people talking about using it, and it's mentioned in the Apple docs too.

How can I get them working?

Thanks!

Answer 1

You can run Core Data instruments against the simulator only, not the device.

Open Instruments and select the Core Data items you want, then use Instruments to launch the simulated iPhone app, instead of launching from Xcode.

Hopefully this support is better in future versions. Also, I believe it only works with 3.1, not 3.0.