Graphics Reference
In-Depth Information
Figure 12.8
The timing profile for our contacts list app
The total percentage of CPU time spent in the
-tableView:cellForRowAtIndexPath:
method (which is where we load the avatar images) is only ~28%. That isn't really all that
high. That would suggest that CPU/IO is not the limiting factor here.
Let's see if it's a GPU issue instead: We'll check the GPU utilization in the OpenGL ES
Driver tool (see Figure 12.9).
