For the past year or so we have been fascinated by the LLVMpipe driver on Mesa's Gallium3D driver architecture for accelerating OpenGL on your CPU (or any other Gallium3D state tracker) as a means of a more efficient and viable software rasterizer for Linux. Mesa's long-standing software rasterizer (swrast) driver is slow and next to useless while LLVMpipe is many times faster thanks to leveraging the Low-Level Virtual Machine and other optimizations atop Gallium3D. However, in order to run a basic OpenGL game purely on the CPU you still need a powerful CPU, but we are pleased to find there are some noticeable performance improvements to be found in Mesa 7.10.
17 January 2011 - 22 Comments
In testing of OpenBenchmarking.org and preparations for the release of Phoronix Test Suite 3.0-Iveland at the end of February from SCALE, a lot of benchmarks have been happening to test the various analytical features and other new capabilities of this open benchmarking platform. In fact, it is really an overwhelming amount of benchmarks; the power capacity in my office is maxed out as benchmark after benchmark and system after system there is all sorts of test scenarios being looked upon. The benchmarks coming out on Phoronix.com over the past two months have just been barely scratching the surface of what has been going into the OpenBenchmarking.org system. Recently a lot of OpenCL compute benchmarks were pumped in, and since we have only published a few OpenCL Linux benchmarks -- OpenCL on Linux vs. Mac OS X and OpenCL NVIDIA vs. ATI on Linux -- here's some more in this article.
14 January 2011 - 23 Comments
Now that the kernel mode-setting page-flipping for the ATI Radeon DRM kernel module has been merged into the Linux 2.6.38 kernel and the respective bits have been set in the xf86-video-ati DDX, we're in the process of running new open-source ATI graphics benchmarks under Linux. Our initial results (included in this article) show these latest improvements to cause some major performance boosts for the open-source ATI driver as it nears the level of performance of the proprietary Catalyst driver.
13 January 2011 - 116 Comments
With our big AMD Linux GPU / driver comparison we found its open-source Gallium3D driver to be noticeably faster than the classic Mesa DRI driver across an array of Radeon hardware from multiple generations. However, the official Catalyst driver was multiple times faster (roughly 5.18x faster) than the Gallium3D driver, not to mention its lack of proper support for OpenGL 3/4, VA-API/VDPAU/XvBA video playback, and many other features only found within the proprietary Catalyst driver. Now though it is time to see how the Gallium3D Nouveau performance compares to that of NVIDIA's proprietary Linux driver across different GeForce graphics cards.
10 January 2011 - 33 Comments
As was alluded to in our New Year greeting, we have been working on a massive graphics card / driver comparison under Linux. Beginning with ATI/AMD hardware, we have tested a series of graphics cards spanning the Radeon X1000, HD 2000, HD 3000, HD 4000, and HD 5000 generations using the very latest drivers. These drivers include the official Catalyst 10.12 Linux release as well as the very latest development code for the open-source Mesa and Gallium3D drivers. The results for seven ATI GPUs spanning four generations with three drivers are quite interesting.
5 January 2011 - 201 Comments
Earlier this week we published our annual look at AMD's Catalyst driver releases from the past year. Not only did the Catalyst Linux driver this year picked up a couple new features, its driver performance had improved slightly over the past twelve months. In building up some initial test data for OpenBenchmarking.org we decided not only to do these tests on the latest consumer-grade graphics card this year, but expand it to cover the workstation performance too and to go back nearly two years in time. These results for an AMD FirePro V8700 graphics card with the monthly driver updates going back to Catalyst 9.2 are quite interesting. AMD announced twice this year optimizations to their FirePro driver software, but in reality these "optimizations" were largely unsustainable and not optimizations as much as they were attempting to address driver regressions from the past.
30 December 2010 - 48 Comments
Earlier this month we delivered our annual performance look at NVIDIA's 2010 Linux graphics drivers and now the tables have turned to do our annual examination of the ATI/AMD Catalyst graphics drivers for the Radeon graphics processors. This was certainly an interesting year -- both good and bad -- for AMD with their Catalyst Linux driver.
27 December 2010 - 29 Comments
At the end of each year for the past five years we have delivered "year in review" articles looking at the performance of NVIDIA's (and ATI/AMD's) proprietary Linux drivers. Both in terms of new features introduced during the year in their driver updates and benchmarking the driver releases to see how the performance has evolved over twelve months. With 2010 coming to an end, it is time for this year's driver reviews. We are starting this year seeing how the NVIDIA performance has matured in 2010.
17 December 2010 - 10 Comments
Yesterday we shared benchmarks of the ATI R600 Gallium3D driver compared against the classic Mesa R600 driver and then the proprietary AMD Catalyst driver. The proprietary driver was much faster than the open-source drivers were, but the Gallium3D driver did possess higher performance in most of the tests than with the classic Mesa driver. This is similar to the R300 Gallium3D driver being faster than its now-deprecated R300 classic driver. Meanwhile though Intel continues to back only their classic Mesa DRI driver and there are no signs of them switching over to the Gallium3D architecture anytime soon. It is not as if Intel's current Mesa driver is feature-complete and performance-optimized as our tests from earlier this year show Intel's Linux graphics performance being far behind their Windows driver. In this article though we are seeing where the Intel Mesa performance is at when using the very latest DRM and Mesa code.
23 November 2010 - 16 Comments
While we are still waiting on open-source support for the AMD Radeon HD 6000 series of graphics cards that were released last month, today AMD is releasing their initial open-source support for their Ontario hardware. AMD's Ontario is their low-powered Fusion processor designed for use in netbooks and other such devices. This dual-core chip with integrated Radeon HD 6250 graphics is only starting to ship now, but the open-source support for this first AMD Fusion chip is now available to Linux users, complete with 3D support.
22 November 2010 - 45 Comments
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