Performance difference between dot notation versus method call in Objective-C

Question

You can use a standard dot notation or a method call in Objective-C to access a property of an object in Objective-C.

myObject.property = YES;

Answer 1

Also read this blog post on Cocoa with Love:

http://cocoawithlove.com/2008/06/speed-test-nsmanagedobject-objc-20.html

There the author compares the speed of custom accessor and dot notations for NSManagedObject, and finds no difference. However, KVC access (setValue:forKey:) appears to be about twice as slow.