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 Lands Some MSAA Mesa Performance Improvements

Intel

Published on 24 March 2014 03:57 PM EDT
Written by Michael Larabel in Intel
1 Comment

A series of commits hitting Mesa's mainline Git this afternoon offer up some multi-sample anti-aliasing (MSAA) improvements for the Intel open-source graphics driver.

Among the commits entering our radar a short time ago include:

Change the winsys MSAA blits from blorp to meta - This change of about 150 lines of code yields the MSAA-forced "citybench" OpenGL test-case to run about 8% faster while DRI2 MSAA-enabled glxgears performance drops by about 13%.

Skip reallocating the private MSAA miptree, unless it's resized - The performance of a micro-benchmark with MSAA was increased by about 1.237%.

Add an env var for forcing window system MSAA - Intel has finally added back an environment variable for forcing multi-sample anti-aliasing. However, Intel is using the INTEL_FORCE_MSAA environment variable for this override by specifying the MSAA sample count, while other drivers use a different approach. The Gallium3D drivers meanwhile use GALLIUM_MSAA and they also support __GL_FSAA_MODE -- with this later environment variable also being what's used by the NVIDIA Linux graphics driver.

There's also been a number of other Intel driver changes landing today for this "classic" DRI driver in Mesa Git.

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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. LowRISC To Feature Tagged Memory & Minion Cores
  2. Intel Skylake Audio Support For Linux 3.19
  3. After 10+ Years, NetworkManager Reaches v1.0
  4. VDPAU Updated To v0.9
  5. An Open Hardware Random Number Generator Proposed
  6. LLVM 3.6 Will Be Branched Next Month
  7. Opera Browser Puts Out Linux Updates For The Holidays
  8. GNOME Shell 3.15.3 Adds Support For High-Contrast Themes
  9. Linux 3.19: ThinkPad Muting Redone, New Dell Backlight Support, Acer Is Banging
  10. KVM Drops Support For IA64 While Adding Various x86 Improvements
Latest Forum Discussions
  1. Need some hand holding with upgrading xserver
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. XLennart: A Game For Systemd Haters With Nothing Better To Do
  4. Debian init discussion in Phoenix Wright format
  5. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  6. FPS capped on Linux (AMD fglrx drivers)
  7. Are there an app using HSA ?
  8. Bench specific mount point