Slow defaults access for key ClientState warning on iOS

Question

I'm getting a "Slow defaults access for key ClientState took 0.034635 seconds, tolerance is 0.020000" warning when testing my iOS app - it seems to occur intermittently. I've tried to look around to see what it is about, but I'm not entirely sure! Any help appreciated, thanks.

Answer 1

My best guess is that the first Viewcontroller is taking to long to load.

I never got this message until adding a large background png to the first view controller which now exhibits the same behaviour but all the time. Take out the png and I did not get it on 5 loads.

Answer 2

Guessing same as depicus: first viewController loads too long.

In my case app starts by populating tableView from last saved CoreData. Right after that server tells me authorization has expired, I start re-auth and facebook login view comes on-screen - on top of tableView.

This is were I get that error. Without facebook login, everything is ok == fast enough.