EUs Active in VS
The metric EUs Active in VS represents the percentage of overall GPU time that the EUs were actively executing Vertex Shader instructions.
- If EUs Active in VS is 50% it means that half of the overall GPU time was spent actively executing Vertex Shader instructions.
- If EUs Active in VS is 0% it means that no Vertex Shader was associated with the selected draw calls, or that the amount of time actively executing Vertex Shader instructions was negligible.
- This metric is important if vertex processing seems to be a bottleneck for selected rendering calls. If EUs Active in VS accounts for most of the EU active time, then to improve performance you should simplify the vertex shader or simplify and optimize the geometry of your primitives.
- If EUs Active in VS is significant, you should examine your vertex shader code to find reasons that might be causing stalls.
Look into the Shaders Tab in the Intel® GPA Frame Analyzer to inspect the shader code.