Background threads consuming 100% CPU on iPhone 3GS causes latent main thread

Question

In my application I am executing 10 asynchronous NSURLConnections within an NSOperationQueue as NSInvocationOperations. In order to prevent each operation from returning be

Answer 1

James, although I haven't experienced your problem, what I've had success with is using the synchronous connection for downloading within an NSOperation subclass.

NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&requestError];

I use this approach for grabbing image assets from network locations and updating the target UIImageViews. The download occurs in NSOperationQueue and the method that updates the image-view is performed on the main thread.