Timeline View

The Timeline View reveals profiling data that has been collected during runtime, organized into a series of Areas. Each Area focuses on profiling data for a different subsystem of the Unity Engine and each is split into two sections: a graphical representation of profiling data on the right, and a series of checkboxes to enable/disable different activities/data types on the left. These colored boxes can be toggled, which changes the visibility of the corresponding data types within the graphical section of the Timeline View.

When an Area is selected in the Timeline View, more detailed information for that subsystem will be revealed in the Breakdown View (beneath the Timeline View) for the currently selected frame. The kinds of information displayed in the Breakdown View varies depending on which Area is currently selected in the Timeline View.

Areas can be removed from the Timeline View by clicking on the X at the top-right corner of an Area. Recall that Areas can be restored to the Timeline View through the Add Profiler option in the Controls bar.

At any time, we can click at a location in the graphical part of the Timeline View to reveal information about a given frame. A large vertical white bar will appear (usually with some additional information on either side coinciding with the line graphs), showing us which frame is selected.

Depending on which Area is currently selected (determined by which Area is currently highlighted in blue), different information will be available in the Breakdown View, and different options will be available in the Breakdown View Controls. Changing the Area that is selected is as simple as clicking on the relevant box on the left-hand side of the Timeline View or on the graphical side, although clicking inside the graphical Area might also change which frame has been selected, so be careful clicking in the graphical Area if you wish to see Breakdown View information for the same frame.