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Factors Influencing Performance

Pipeline tuning is discussed in detail in Chapter 12, "Tuning the Pipeline." Table 11-1 provides an overview of factors that may limit rendering performance and the part of the pipeline they belong to.

Factors Influencing Performance
Performance ParameterPipeline Stage
Amount of data per polygonAll stages
Time of application overheadCPU subsystem
Transform rate & mode setting for polygonGeometry subsystem
Total number of polygons in a frameGeometry & Raster subsystem
Number of pixels filledRaster subsystem
Fill rate for the given mode settingsRaster subsystem
Time of screen and/or depth buffer clearRaster subsystem


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