RADV Lands A Few More Improvements To Reduce CPU Overhead

Written by Michael Larabel in Radeon on 4 January 2023 at 07:00 AM EST. 9 Comments
Samuel Pitoiset of Valve's Linux graphics team has landed a few patches into Mesa 23.0 for further reducing the CPU overhead of the Vulkan driver's draw path.

Making use of Mike Blumenkrantz's "vkoverhead" benchmark for looking at the Vulkan driver overhead, Pitoiset has scored about an 11% improvement in the draw path with this latest round of open-source Radeon Vulkan driver optimizations.

The set of five patches were merged yesterday to Mesa 23.0.

Separately, another RADV merge worth mentioning are some layer improvements that in turn allow for simultaneous Radeon Raytracing Analyzer (RRA) and Radeon GPU Profiler (RGP) tracing, which will be useful for developers.

It's great seeing Valve, AMD, and other parties not letting up on relentlessly optimizing the Linux open-source GPU driver stack. Mesa 23.0 as the project's next quarterly feature release should be out as stable by early March.
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