2D Time Per Frame

What does this counter show?

If the GPU in the target device contains a PowerVR 2D graphics core, this counter shows the time spent processing 2D tasks (in seconds) during the specified period. If a PowerVR 2D core is not present in the target device the counter will be greyed out.

The purpose of the 2D core is to perform efficient blitting operations. For example, OS composition may utilize the 2D core so that the rest of the GPU pipeline can be dedicated to application rendering.