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

Intel's Investing In Some Mesa Optimizations

Intel

Published on 19 July 2010 08:28 PM EDT
Written by Michael Larabel in Intel
5 Comments

Earlier this month an Intel employee began asking about making optimizations to Mesa's shader compiler (on the Mesa-dev list). This Intel employee was not one of their usual Open-Source Technology Center developers commonly working on their Linux graphics stack as part of Keith Packard's team, but instead it was an uncommon name: Benjamin Segovia. Ben is from Intel's Advanced Graphics Lab team where previously he worked on ray-tracing techniques, but as of late seems to be at least dedicating some of his Intel effort towards optimizing Mesa.

Ben's original Mesa thread (linked above) can be read for more details on his original thoughts and intentions, but today he has just submitted one of his first patches and it provides better GPU program optimization within the Mesa front-end. This patch touches just under 500 lines of code and provides improved optimizations of GPU programs with better swizzle support and analyzes control flows (though in a very crude form right now). Next up, Ben is working to tackle instruction merging and register renaming to avoid unnecessary moves. In his testing of this patch, all of his tests are working out and the GPU shader code is "clearly improved."

While Segovia is an Intel employee, his work right now that's taking place is happening within Mesa's front-end in a common area of this open-source code-base, so it should be of benefit to all users, but his testing has just been with the Intel driver and hardware. Ben though has also expressed interest in making some improvements to the Intel-specific Mesa shader compiler back-end. The initial patch that's not yet committed to Mesa's mainline code-base can be found on the mailing list.

Eric Anholt and Ian Romanick (of Intel's normal OSTC Linux graphics crew) are also working on a new shader compiler for Mesa, among other improvements. Any and all optimizations and improvements to the open-source 3D Linux graphics stack should certainly be appreciated by the community. While Intel focuses all of their Linux support for their in-house IGPs on an open-source driver (not to be confused with their other nasty side), their Windows driver is still a whole lot faster.

Hopefully a good portion of this work will be ready in time for Intel's Sandybridge launch. Ben has also mentioned Sandybridge -- Intel's upcoming CPU with a better integrated graphics core than Clarkdale -- within the mailing list thread.

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. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Linux 3.19 To Have Skylake Graphics, PPGTT Enablement
  2. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  3. Imagination Releases Full ISA Documentation For PowerVR Rogue GPUs
  4. Features GNOME Developers Want In The Linux Kernel
  5. GTK+ Gains Experimental Overlay Scrollbars
  6. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
  7. GParted 0.20 Improves Btrfs Support
  8. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
  9. Emacs 24.4 Has Built-In Web Browser, Improved Multi-Monitor Support
  10. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. HOPE: The Ease Of Python With The Speed Of C++
  3. Proof that strlcpy is un-needed
  4. Bye bye BSD, Hello Linux: A Sys Admin's Story
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  7. AMD Is Restructuring Again, Losing 7% Of Employees
  8. Open-Source AMD Fusion E-350 Support Takes A Dive