What Do I Do If the GPU Shows Idle Time | Intel Software
15When the GPU shows idle time, the inclination is to analyze a frame in Graphics Frame Analyzer. But sometimes it is best to take a look at the bigger picture first, using Graphics Trace Analyzer. This user story guides you through a case when the bigger picture will save tons of potentially wasted time and energy.
Observe as I guide you through a user story where the GPU is idle. You would suspect the CPU is overly busy. But in this case if you back up to get a bird's eye view, you will see that there is a very clear wait/signal scenario that is causing the GPU idle time. Once the developer knows the cause, a more informed decision can be made about where to spend time, increase FPS? Add more cool graphics features? Whatever your choice, it is now based on knowing what is happening under the hood.
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What Do I Do If the GPU Shows Idle Time | Intel Software