1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

The Grinch That Stole The Radeon Gallium3D Performance?

Michael Larabel

Published on 22 December 2011
Written by Michael Larabel
Page 1 of 6 - 20 Comments

There are some significant performance drops right now on Mesa master for the forthcoming 7.12/8.0 release concerning the Gallium3D driver for older ATI Radeon graphics processors. The performance of the R300g driver is now setback compared to earlier Mesa releases.

This week I was running some new benchmarks of the R300g Radeon Gallium3D driver, which is the open-source user-space driver that handles the ATI/AMD GPUs from the R300 through R500 (Radeon X1000) series. In running benchmarks of the latest Gallium3D driver code and Mesa itself, along with the latest Linux kernel DRM and xf86-video-ati DDX, the OpenGL performance is now degraded compared to Mesa 7.11 and earlier. The expectation was that the performance would be close to (or better) than the earlier 7.11 release since that's what it was when checking last earlier on in the 7.12-devel cycle, but it's a different story now for some OpenGL workloads.

With a Radeon X1950PRO 256MB graphics card I had used the Linux 3.2 development kernel and xf86-video-ati 6.14.99 DDX while testing the latest Mesa 7.12-devel Git (9f8573b) and then switching to the latest branches for 7.11 (7.11.2), 7.10 (7.10.3), 7.9 (7.9.2), and 7.8 (7.8.3) and testing those versions of the R300g driver. After discovering the performance on Mesa 7.12-devel Git had fallen off a cliff in some of the common tests, I then carried out similar tests on a completely different system (a ThinkPad with Mobility Radeon X1400 graphics) to confirm these findings.

In both systems the SwapbuffersWait was manually disabled and color tiling is enabled by default for the R500 hardware. The first batch of OpenGL benchmarks comparing the Mesa versions while running on the Linux 3.2 kernel DRM are from the Radeon X1950PRO (RV570) system.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  2. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  3. Fedora 21 Beta & Final Release Slip Further
  4. Mesa 10.3.2 Has A Couple Bug-Fixes
  5. RadeonSI/R600g HyperZ Support Gets Turned Back On
  6. openSUSE Factory & Tumbleweed Are Merging
  7. More Fedora Delays: Fedora 21 Beta Slips
  8. Mono Brings C# To The Unreal Engine 4
  9. Coreboot Now Has Support For Intel Broadwell Hardware
  10. Enlightenment's EFL 1.12 Alpha Has Evas GL-DRM Engine, OpenGL ES 1.1 Support
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Debian Is Back To Discussing Init Systems, Freedom of Choice
  4. AMD Radeon VDPAU Video Performance With Gallium3D
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  7. Linux hacker compares Solaris kernel code:
  8. Advertisements On Phoronix