I am using XCode Instrument to profile my application. The thing is my application runs fine, with smooth scrolling. But, when I am not tapping or scrolling anything, I can see that the instruments tell me my main thread is blocked. This is so counter-intuitive.
So, what does this "blocked" mean? Does this mean the main thread is inactive and has no work to do? My application runs fine, so this can't mean the main thread is literally blocked and can't perform any work, right?