On Aug 26, 2010, at 8:39 AM, Uli Kusterer wrote: > On Aug 26, 2010, at 12:48 PM, Vijayakumar_Thota wrote: >> I am working on the performance issues of an application. I am facing a >> difficulty in finding out how many times a method is called in different >> contexts. >> >> Suppose there is a method called 'setItem'. I need the report which tells >> something like the method 'setItem' is called 12 times at runtime in >> specific event action. >> >> Is there any tool in MAC which gives the report on how many times a method >> is called. I have seen the different templates in instruments tool, but I am >> not getting, which will give the right solution. >> >> Please share any information if you have something or correct me if anything >> I am doing wrong. > > > Have a look at Instruments, and Shark. they came with Xcode in your Dev Tools > installation.
Shark and most of the instruments in Instruments are statistical samplers, not exact function-call measurement. Also, Vijay already mentioned familiarity with Instruments. Vijay, you might want to look into Saturn and the function instrumentation features of gcc. They are documented here: <http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/SaturnUserGuide/>. Another tool is DTrace. You can use it manually or build a custom instrument in Instruments using DTrace as the underlying engine. A quick one-liner example: sudo dtrace -n 'objc$target:MyClass:-setItem?:entry { ustack(); }' -p <pid of my process> However, it is pretty rare that the statistical tools are not sufficient for performance analysis, so you might want to reconsider whether you really need an exact function-call measurement. Regards, Ken _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
