The default shark 'Time Profile' configuration on the iPhone appears to sample every 1 ms. I'd like to tweak it to sample every 100us. I know this is possible to do on my local machine by editing the shark configurations, but I don't see a way to edit the configurations on the phone.
Thank you,
Answer: it would appear that you can't.
From the Shark User Manual:
Important: Currently, while you can make custom ARM counter configurations with Shark, there is no way to load customized configuration files onto your iPhone OS device using the iPhone OS SDK. This restriction may be relaxed in future versions of the SDK. In the meantime, send suggestions for useful configurations to [email protected] and we may include them in future iPhone OS SDK releases.