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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  2. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
  3. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
  4. MSAA RadeonSI Gallium3D Performance Preview
Latest Linux News
  1. X.Org Server Shatter Project Fails
  2. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  3. Fedora 21 Alpha Finally Coming Next Week
  4. Ubuntu Touch/Phone Reaches Its First RTM Image
  5. The KMS Mode-Setting Driver Was Imported For X.Org Server 1.17
  6. SNA & UXA Intel Benchmarks With X.Org Server 1.16
  7. Graphics Driver Changes Coming In The Linux 3.18 Kernel
  8. Tropico 5 Being Released For Linux Gamers This Week
  9. Eclipse IDE Starts Firing Up On Wayland's Weston
  10. OpenSUSE Announcement On SUSE's Recent Merger
Latest Forum Discussions
  1. New Group Calls For Boycotting Systemd
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Stop grabbing my keyboard :(
  4. Best Radeon for a Power Mac G5?
  5. New stress testing utility for GPU's
  6. Hd 6850
  7. support for first generation UVD blocks (RV6xx, RS780, RS880 and RV790)
  8. Nvidia joins the ranks of Apple and Microsoft