Intel® VTune™ Amplifier
The metric PS EU Active % represents the percentage of overall GPU time that the EUs were actively executing Pixel Shader instructions.
This metric is important if pixel shading seems to be the bottleneck for selected rendering calls.
IfPS EU Active % is 50%, it means that half of the overall GPU time was spent actively executing Pixel Shader instructions.
If PS EU Active % is 0%, it means that no Pixel Shader was associated with the selected draw calls, or that the amount of time actively executing Pixel Shader instructions was negligible.
To improve performance: