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 Mesa 3D Driver Gets Some Performance Tweaks

Intel

Published on 29 April 2013 08:00 PM EDT
Written by Michael Larabel in Intel
Comment On This Article

At least three commits seeking to improve the performance of Intel's open-source 3D/OpenGL Mesa driver were merged on Monday.

On the same day as bringing GL2 to Intel's i915 Mesa driver, Eric Anholt committed a set of improvements to the Intel i965 driver that supports back from the i965 hardware up through the latest Ivy Bridge, Haswell, and Valley View graphics processors. The performance improvements committed today come down to:

i965/fs: Allow LRPs with uniform registers. This commit by Eric boosts the GLB2.7 performance by just under 1% on a Haswell development system by changing around just a few lines of code.

i965: Disable Z16 on contexts that don't require it.. It turns out that the Z24 texture format on Intel hardware is faster than Z16. OpenGL 3.0+ mandates Z16 texture format support while OpenGL ES doesn't have any explicit requirement, so this commit chooses the performing-layout. Eric notes that the trex performance went up by 10.7% on his Intel Ivy Bridge system with this change.

intel: Be more conservative in disabling tiling to save memory. The third Intel Mesa driver commit today seeking to boost performance is being more conservative with disabling tiling when the width is much smaller than the tile size. Eric notes that this improves the performance on his Ivy Bridge system by just over 1% while his Haswell system is about 3.38% faster.

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. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  2. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  3. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  4. Sumo's Omni Gets Reloaded
Latest Linux Articles
  1. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
  2. Preview: OS X 10.10 Yosemite vs. Ubuntu Linux GPU Performance
  3. Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
  4. AMD's RadeonSI Driver Sped Up A Lot This Summer
Latest Linux News
  1. Metro 2033 Redux Will Hopefully Hit Linux Real Soon
  2. New Virtual Monitor Software Might End Up On Linux
  3. Company of Heroes 2 Might Be Coming Out For Linux
  4. NIR Still Being Discussed For Mesa, LLVM Gets Brought Up Again
  5. Plasma Active Is Mostly Ported To KDE Frameworks 5
  6. Google Chrome 37 Brings Many Security Fixes
  7. MenuetOS Updated With SMP Threads & Onscreen Keyboard
  8. Mesa Has A New Release Manager
  9. Enlightenment E19 Lands Its New Wayland Compositor Code
  10. Nouveau Turns Into A Mess In Latest Linux 3.17 + Mesa 10.3-dev Tests
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. [DB] BIOS - ACPI - data collecting
  3. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins
  4. AMD Releases UVD Video Decode Support For R600 GPUs
  5. Announcing radeontop, a tool for viewing the GPU usage
  6. Users defect to Linux as OpenBSD removes Lynx from base system
  7. Chinese People Try To Patent Wine On ARM
  8. American Citizens running AMOK for food stamps