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Phoronix Test Suite

OpenBenchmarking.org

Radeon Driver On XMir Still Is Messy Experience

AMD

Published on 07 August 2013 06:35 PM EDT
Written by Michael Larabel in AMD
39 Comments

Going back to June on Phoronix there have been Ubuntu Mir/XMir performance benchmarks. Up to this point these benchmarks have only been done with Intel and Nouveau graphics drivers, since the AMD Radeon driver has been rather problematic with XMir. Sadly, this still appears to be the case.

With there now being experimental XMir-based Xubuntu 13.10 images available for testing, I fired up the XMir Xubuntu image on an AMD Richland APU with Radeon HD 8670D graphics to see how things were running. This was just one day after running Xubuntu XMir benchmarks with Nouveau, the reverse-engineered NVIDIA driver.

With the Radeon graphics (using R600 Gallium3D), it was very quick to hit issues with XMir compared to when the Intel or Nouveau graphics driver was in use on the same software base. The Radeon issues I encountered with the XMir Xubuntu image appears to come down to damage tracking when dealing with text-based programs like the terminal or gedit. When entering text, it usually takes an extra character being added/removed (or other change to the screen) for the character(s) to actually appear and some other text-related issues with XMir on Radeon. It was a big annoyance even with the limited manual text input needed for running the Phoronix Test Suite.

Anyhow, I was curious to see how the Radeon OpenGL and 2D performance compared with and without XMir on Xubuntu 13.10 Saucy. I ran some benchmarks similar to the Nouveau XMir Xfce tests. The new Radeon tests using the AMD A10-6800K APU can be found on OpenBenchmarking.org within 1308071-SO-RADEONXUB42.

Embedded below are just a few of the 2D/3D benchmark results showing the Radeon performance hit with XMir on the current (X)ubuntu 13.10 packages, click the aforelinked result page for all the system hardware/software information, system logs, and more test results.







About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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