CPU Usage Timeline improvements (thread breakdown and categorization) - Should be able to breakdown usage per threads (Main Thread, Worker Threads, and others) - Should be able to see what the Main Thread was doing (correlate with other timelines)
<rdar://problem/47931240>
Subtasks have landed or are landing. This will cover the final bit of UI.
Actually I'll continue to track as subtasks since there can be a few parts.
Subtasks are all completed. I may continue to relate bugs but going to close this one.