While LLVM 2.8 was just released, we have been curious to see how the latest Low-Level Virtual Machine compiler code affects the performance of the LLVMpipe driver. This is the Gallium3D graphics driver that lives in Mesa and leverages the unique modular LLVM compiler to efficiently handle processing the graphics rendering workload on a modern CPU as a much faster alternative to that of their legacy software rasterizer. To see how much of a performance impact - for better or worse - that LLVM 2.8 has on this open-source software driver we tested it when being built with LLVM 2.6, 2.7, and the 2.8 SVN code.
8 October 2010 - 64 Comments
Not only have we been busy testing Mesa 7.9 with the Intel and ATI/AMD drivers along with the Gallium3D drivers (including LLVMpipe), but the Nouveau driver that continues to be developed by the open-source community for NVIDIA GPUs received a fresh round of tests too. Our first published benchmarks of the Nouveau Gallium3D driver were back in February when it was nearing a decent state in terms of supported features and stability. Its DRM also finally entered the mainline Linux kernel earlier this year thereby allowing many Linux distributions to now use the Nouveau KMS driver even though not many have yet adopted the Gallium3D driver for OpenGL acceleration. We delivered updated Gallium3D benchmarks in June with the latest Mesa code at that point, but since then there was the integration of a new GLSL compiler into Mesa and many Nouveau changes, so here are our most recent OpenGL benchmarks from this open-source NVIDIA driver.
6 October 2010 - 26 Comments
As we have talked about in numerous articles now and delivered various benchmarks for different graphics processors from those using a classic Mesa DRI driver to the newer NVIDIA/ATI hardware with Gallium3D support, Mesa 7.9 brings a lot to the table. There are many new features to be found in Mesa 7.9 for all drivers, but in this article, we are specifically looking to see how the OpenGL performance of the classic R600 driver has changed compared to Mesa 7.7 and Mesa 7.8.
1 October 2010 - 18 Comments
With Mesa 7.9 just around the corner and it sporting a new GLSL compiler, support for new OpenGL extensions, and months worth of other changes to core Mesa and its drivers, we decided to run some benchmarks of the latest Intel Arrandale graphics processor with the past few Mesa releases to see how the performance compares. We also have ATI and Nouveau Mesa benchmarks on the way.
27 September 2010 - 14 Comments
Over the next few weeks there are a number of new Phoronix benchmarks to be published concerning the performance of Mesa 7.9 for both the Mesa classic and Gallium3D drivers from the different GPU vendors. Included in those tests will be new Intel Mesa benchmarks of their only officially supported 3D driver using one of the Arrandale processors, but for those currently missing out on the X Developers' Summit in Toulouse or PhoronixFest at Oktoberfest, here's a bonus article. For this extra round of benchmarking, we took one of the original Intel Atom benchmarks with i945 graphics and ran it with every major Mesa release since Mesa 7.4.
17 September 2010 - 17 Comments
For the past three years we have hosted an annual Linux Graphics Survey in which we ask tens of thousands of users each time their video card preferences, driver information, and other questions about their view of the Linux graphics stack. This year we are hosting the survey once again to allow the development community to get a better understanding of the video hardware in use, what open-source and closed-source drivers are being used, and other relevant information that will help them and the Linux community.
1 September 2010 - 12 Comments
AMD continues to abide by their commitment to provide open-source support for their graphics cards and as proof of that this afternoon they have released their initial hardware acceleration code that supports the ATI Radeon HD 5000 "Evergreen" family of consumer grade graphics processors. While this Evergreen support isn't yet finished and for the time being is targeted towards Linux developers and enthusiasts, you can now play around with your ATI Radeon HD 5000 graphics processor on an open-source driver while having 2D EXA, X-Video, and OpenGL acceleration.
20 August 2010 - 142 Comments
With the imminent release of X.Org Server 1.9, last week we delivered benchmarks of Intel's 2D driver performance with X.Org Server 1.9. In those tests we found Intel's UXA (UMA Acceleration Architecture) performance only changed a bit -- for either better or worse -- with the updated X Server, but today we are looking at the 2D EXA performance using ATI Radeon hardware using this soon-to-be-released X Server.
18 August 2010 - 7 Comments
X.Org Server 1.9 is set to be released as soon as next week, has already been pulled into Ubuntu 10.10, and is part of the X.Org 7.6 katamari. While X.Org Server 1.9 does not bring many exciting end-user changes like previously releases that introduced RandR 1.2, Multi-Pointer X / X Input 2.0, and other new technologies, there are plenty of bug fixes and other minor improvements throughout the X Server. In this article, we are looking at how the Intel DDX driver performance changes when upgrading from X.Org Server 1.8.2 to the latest X.Org Server 1.9 development code.
13 August 2010 - 5 Comments
Last month we tested out Intel's new GLSL compiler for Mesa when running the ATI Radeon classic Mesa and Gallium3D drivers to see how this GL Shading Language compiler designed by Intel employee's for their hardware and open-source driver work for the other open-source drivers, since all of the Mesa drivers will be affected once this "GLSL2" compiler is merged into the Mesa code-base by month's end. The experience using Intel's new shader compiler with the ATI Radeon graphics driver worked fine except for Warsow where serious regressions were visible, but in the other games that are capable of running off Mesa, the experience was fine. What we have been curious to test since then with this new OpenGL shader compiler has been the LLVMpipe driver -- a Gallium3D driver we have been very excited about as it finally provides a better software rasterizer for Linux by leveraging Gallium3D and the Low-Level Virtual Machine (LLVM) compiler infrastructure for accelerating the Mesa state tracker atop a modern multi-core CPU that supports SSE4 instructions. We have now finished running tests of the Intel's GLSL2 branch with the most recent LLVMpipe driver code.
11 August 2010 - 14 Comments
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