Objective C processor timer

Question

Hi all,

I would like to compare the real efficiency of different scripts. I currently use a timer :

 NSDate *start = [NSDate date];
    // Do something
 NSLog(@"Elapsed : %f",[start timeIntervalSinceNow]);

But it is not relevant since it might depend on the OS working in the background, etc... Does something that really measure the processor cycles needed to execute the script exist ? Or something equivalent ?

Thanks

Answer 1

Shark might help you. Guide for iPhone: http://rudifa.wordpress.com/2009/09/16/profiling-an-iphone-application-with-shark/

More info: http://stackoverflow.com/questions/1616564/why-is-run-run-with-performance-tool-shark-always-gray-in-xcode-how-to-cal