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Graphics kernel performance improvements starting in WDDM 1.3

To help evaluate graphics hardware performance, Windows Display Driver Model (WDDM) 1.3 and later drivers can optionally provide accurate timing information for API calls that are processed by the GPU. This capability is new starting with Windows 8.1.

These sections list the device driver interfaces (DDIs) that are new or updated for WDDM 1.3 and later drivers.

Kernel performance reference

These reference topics describe how to implement this capability in your display miniport driver:

User-mode ETW marker events

These reference topics describe how a user-mode display driver supports Event Tracing for Windows (ETW) marker events that can be used to profile and improve app timing and performance. WDDM 1.3 and later drivers must support all of these DDIs, except for pfnSetMarker and pfnSetMarkerMode in certain cases, as described in Direct3D rendering performance improvements starting in WDDM 1.3.



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