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AMD Releases GPU Performance API v3.11 Adding Support for Raytracing Counters in Vulkan

GPU Performance API (GPUPerfAPI) is a powerful library providing access to GPU Performance Counters to help analyze the performance and characteristics of applications using a Radeon GPU.

GPUPerfAPI v3.11 adds support for raytracing counters in Vulkan on RDNA2 (Radeon RX 6000 Series) hardware:

  • RayTriTests, and RayBoxTests: These counters collect the number of ray intersections for triangles and boxes, respectively.
  • TotalRayTests: This counter collects the aggregated number of ray-box and ray-triangle intersection tests.
  • RayTestsPerWave: This counter collects ray intersection test count at a more granular level – per wave.