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

Performance Work Coming Up For Mesa 7.11

Mesa

Published on 09 January 2011 05:26 PM EST
Written by Michael Larabel in Mesa
68 Comments

While Mesa 7.10 was just released, there's already been some work beginning to land in the mainline Mesa code-base for the ATI Radeon Gallium3D drivers to improve the performance.

In one commit that affects several hundred lines of code, the command submission and resource space checking was reworked. This rework eliminates some CPU over-head and with some OpenGL software the performance is much faster, such as with TORCS where the performance goes up by 10%. Right now this commit is for the Radeon R300g driver that supports the R300/R400/R500 ASICs (up through the Radeon X1000 series), but Marek Olšák, the patch's author, says it could be ported to the R600g driver too.

In another commit today by Marek, there is another performance boost in ensuring the same user-buffer is not uploaded multiple times to the GPU.

While not yet merged, Christian König is also working on some unrelated optimizations. For his XvMC state tracker on R600g he has been working to optimize the shaders used for the iDCT and MC code. This is in the form of TGSI code optimizations and also TGSI to the R600-specific hardware code generation. Among the optimizations include removing the temporary register usage from most instructions, special constants, TEX and VTX joning, reworked swizzle code, fully implemented barrier handling, reworked literal handling, and implement register remapping. This chunk of work done by Christian has resulted in a 25% performance boost for 720 x 480p video playback and 5~7% for 1080i/1080p video playback. You can read about this work on the Mesa mailing list.

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 .
Latest Linux Hardware Reviews
  1. ASRock X99 Extreme3 Is An Affordable Choice For Linux Users
  2. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  3. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  4. OCZ Vector 150 SSD On Linux
Latest Linux Articles
  1. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Features Of The Linux 3.19 Kernel: Graphics & Disks Rule
  2. Orange Pi Is The Latest Raspberry Pi Inspired ARM Board
  3. An Open-Source Hardware Ambient Light Sensor Is Brought Up
  4. Heterogeneous Memory Management Is Coming Along For The Linux Kernel
  5. NTP Is The Latest Project Struck By Security Issues
  6. LDC 0.15.1 Released For A D Compiler In LLVM
  7. Fedora Doesn't Yet Enable F2FS File-System Support
  8. XZ 5.2 Adds New Multi-Threaded Options
  9. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
  10. Server-Side XCB Is Being Discussed For The X.Org Server
Latest Forum Discussions
  1. Looking for an nVidia GPU, but not sure how well they are supported.
  2. No OpenCL with latest driver updates on Ubuntu?
  3. Need some hand holding with upgrading xserver
  4. Maker3D - create your 3D RPG
  5. FPS capped on Linux (AMD fglrx drivers)
  6. Speeding up systemd networking service
  7. Major Performance Breakthrough Discovered For Intel's Mesa Driver
  8. Are there an app using HSA ?