Profiling iphone with shark: Nothing happens after pressing start

Question

I have used shark in the past with Mac applications. I am now trying to set it up for the iPhone but it doesn't want to work.

I have followed these instruction from another post: Build app and launch on device

- Launch Shark
- From the Shark menu, select Sampling->Network/iPhone Profiling
- In the Shark window, select the radio button "Control network profiling of shared computers".
- Select your iPhone in the list and optionally configure the profiling session
- Press Start to begin profiling, and Stop to end

Everything is fine except the final step. I press start and nothing happens... it is really frustrating since the start button is not greyed out and shark just fail silently without any further message.

I have tried to:

- Reboot
- Re-install latest XCode
- Restore my ipod
- Try different USB port
- Disabling firewall

Anyone has another suggestion or have seen that in the past?

Answer 1

Apparently Apple have dropped support for shark and iOS 4... we should use the app called Instruments instead.

I have read this on apple dev forums: https://devforums.apple.com/message/243237 (if you can access it)

Answer 2

Same problem with XCode 3.2.3 / iOS4 / 3GS

One person says make a release build ttp://forums.macrumors.com/showthread.php?t=619564

and another says make a debug build ttp://www.switchonthecode.com/tutorials/using-shark-to-performance-tune-your-iphone-app

The latter page says launch from iPhone directly, not from Xcode.

I've tried combinations of debug/release, iPhone direct/from Xcode, but no success.

Apple's getting started with shark doc doesn't say anynithing about which build or how to launch your app :( http://developer.apple.com/iphone/library/documentation/DeveloperTools/Conceptual/SharkUserGuide/GettingStartedwithShark/GettingStartedwithShark.html

Hope we can find a solution soon.