Embodiments enable a graphics processor to more efficiently process graphics and compositing processing commands. In certain embodiments, a client application submits client graphics commands to a graphics driver. The client in certain embodiments can notify a window server that client graphics commands have been submitted. In response, the window server can generate compositing processing commands and provide these commands to the graphics driver. Advantageously, a graphics processor can execute the client graphics commands while the window server generates compositing processing commands. As a result, processing resource can be used more efficiently.