Tools and Techniques for GPU Performance Profiling

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GPU performance bottlenecks are hard to understand unless you have the right tools. Lets look at a typical GPU performance problem and how to apply AMDs free GPU PerfStudio and GPU ShaderAnalyzer to get behind the scenes, and unclog that bottle.

Justin Whitney

9/24/2007

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If GPU bottlenecks try your patience, you're not alone. Notoriously tricky to track down, GPU performance snags give developers, especially game developers, an optimization challenge they may or may not thrive on, depending on their level of masochism. AMD is setting out to change that with a new crop of GPU profilers that let you track a wide variety of hardware counters using real-time plotting, override multiple rendering states, and analyze your shader code to predict performance.

GPU PerfStudio and GPU ShaderAnalyzer, both available now as free downloads, give you the right set of tools for finally uncorking those bottlenecks. Here, you'll take a closer look at what they are and how they work. Then you'll look at how they perform in a real-world application, using the upcoming Settlers 6 from BlueByte/Ubisoft as a case study.

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