dispatch_async has lag somewhere, can't find where. is there an NSLog problem?

Question

So i have this code:

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0), ^{

//Bunch of code

NSLog(@\"Test\");

});

w

Answer 1

Instead using //Bunch of code, you should paste the real code, otherwise it's hard to find your problem and waste our time. I guess you probably you update ui in the "bunch of code" which should be in main thread.