The Impact Of Switching To Linux 4.3 + Mesa-11.1/LLVM-3.8 On Ubuntu 15.10
Written by Michael Larabel in AMD on 20 October 2015 at 05:00 PM EDT. 18 Comments
AMD --
Yesterday I posted some performance results of a Radeon R9 290 tested on Ubuntu 15.04 and Ubuntu 15.10 out-of-the-box. In this article are some numbers when upgrading the Ubuntu 15.10 installation to use the non-standard Linux 4.3 Git kernel as well as Mesa 11.1-devel Git that's built against LLVM 3.8 SVN for the newest open-source AMD Linux experience.

The Linux 4.3 kernel was obtained from the Ubuntu Mainline Kernel archive while the new Mesa 11.1-devel and LLVM 3.8 SVN stack is from this Launchpad PPA providing the very latest Mesa/LLVM support. It's sad that with Ubuntu 15.10, their Mesa 11.0 build is against LLVM 3.6 which means there isn't OpenGL 4.0/4.1 support with the AMD RadeonSI Gallium3D driver for all Ubuntu users with a Radeon HD 7000 series graphics card or newer. Fortunately, using the aforementioned PPA makes it easy to tap the latest Mesa code while having a supported AMDGPU LLVM back-end for the necessary GL4 requirements.

Below are some of the results of Ubuntu 15.04 vs. Ubuntu 15.10 vs. Ubuntu 15.10 + Linux 4.3 + Mesa 11.1-dev with LLVM 3.8 SVN.

You can find all of this test data and plenty more Linux OpenGL benchmark results via this result file. If you wish to support all of the Linux benchmarking work I do day in and day out, please consider subscribing to Phoronix Premium. Thanks!
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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