These results are not exciting like with the Radeon UMS vs. KMS benchmarks, but it is refreshing to see that the kernel mode-setting support does not lead to degraded performance as it does with the current ATI Radeon hardware on the open-source Linux stack. This is particularly good since with the latest mainline releases there is no user-space mode-setting support. At the same time though there isn't any performance optimizations yet with the KMS paths, at least as it concerns the OpenGL performance, but 2D UXA and X-Video may be a different story and we'll leave that for another article.
Discuss this article in our forums, IRC channel, or email the author. You can also follow our content via RSS and on social networks like Facebook, Identi.ca, and Twitter (@Phoronix and @MichaelLarabel). Subscribe to Phoronix Premium to view our content without advertisements, view entire articles on a single page, and experience other benefits.