Percent of time processing data in the pipeline.
typedef struct D3DDEVINFO_D3D9PIPELINETIMINGS {
FLOAT VertexProcessingTimePercent;
FLOAT PixelProcessingTimePercent;
FLOAT OtherGPUProcessingTimePercent;
FLOAT GPUIdleTimePercent;
} D3DDEVINFO_D3D9PIPELINETIMINGS, *LPD3DDEVINFO_D3D9PIPELINETIMINGS;
For best performance, a balanced load is recommended.