---
title: 'AMD Releases GPU Performance API v3.11 Adding Support for Raytracing Counters in Vulkan'
url: 'https://vulkan.org/news/auto-20746-0eeda9d4aebe2a3fd6d6a7c2fa212647'
markdown: 'https://vulkan.org/news/auto-20746-0eeda9d4aebe2a3fd6d6a7c2fa212647.md'
date: '2022-04-29'
taxonomy:
  tag: {  }
---

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

  April 29th at 4:03pm

 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. 

 [ Read More  ](https://gpuopen.com/gpuperfap)

---

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