Graphics Reference
In-Depth Information
We see that—as expected—most rows are green, only flashing red briefly as they move
onto the screen. Consequently, our frame rate is now much smoother.
So, our initial instinct was wrong. The loading of our images turns out
not
to have been a
bottleneck after all, and any effort put into a complex, multithreaded loading and caching
implementation would have been wasted. It's a good thing we verified what the problem
was before we tried to fix it!
In this chapter, you learned about how the Core Animation rendering pipeline works and
where the bottlenecks are likely to occur. You also learned how to use Instruments to
diagnose and fix performance problems.
In the next three chapters, we look at each of the common app performance pitfalls in detail
and learn how to fix them.
