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

Linux 3.4 Kernel Set To Speed-Up Intel's GPU Driver

Linux Kernel

Published on 23 February 2012 07:05 AM EST
Written by Michael Larabel in Linux Kernel
3 Comments

While the Linux 3.3 kernel is still weeks away from release, there's more building up to look forward to with its successor: the Linux 3.4 kernel. A few months down the road when Linux 3.4 makes it out, there will be some additional Intel performance improvements.

Daniel Vetter, the current maintainer of Intel's "-next" Git tree for their open-source DRM driver, has issued a new pull request to David Airlie for pulling in the latest bits into his DRM subsystem "-next" tree. This is what will ultimately go into the Linux 3.4 kernel as soon as the next merge window is open. His pull request can be found on the dri-devel mailing list.

There's some interesting work building up for Linux 3.4 when it concerns Intel's Direct Rendering Manager driver, namely there's interlaced mode support, improved error state work, a "pile of minor patches", and two performance-related items.

PPGTT is short for Per-process Graphics Translation Table and allows each graphics process to map its own region of graphics memory.As PPGTTs are cacheable and each process having its own region of memory can avoid potential clashing, the PPGTT work leads to performance improvements.

The other item that can enhance performance for Intel graphics in the Linux 3.4 kernel is swizzling support. Again, this is just a Sandy Bridge and Ivy Bridge feature.

Coming up soon will be benchmarks to look to see how this latest open-source Intel work affects the Sandy Bridge graphics performance. It's also making me rather impatient to see shipping Ivy Bridge hardware and how interesting its performance will be.

Besides the PPGTT and swizzling support, enabling RC6 support in their kernel driver also leads to significant performance improvements. This should be in place for the Linux 3.4 kernel as well assuming there's no other fallout from faulty Sandy Bridge systems not being able to handle the RC6 power-savings feature.

As far as where the Intel Sandy Bridge Linux graphics performance is at right now, read Intel Sandy Bridge Shines With Mesa 8.0. You can also see how the Intel Sandy Bridge performance compares to Mac OS X 10.8, the new "Mountain Lion" release coming out this summer from Apple.

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. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  2. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
  3. Ubuntu 14.10 Offers AMD Radeon Driver Performance Improvements
  4. Btrfs RAID: Linux 3.10 To Linux 3.18 Benchmarks
Latest Linux News
  1. Russia's Yandex Web Browser Finally Released For Linux
  2. Linux Kernel Finally Being Optimized For SSHDs
  3. GPU Profiling Support Lands In Mozilla Firefox
  4. Kubuntu 15.04 Will Use KDE's Plasma 5 By Default
  5. KDBUS Submitted For Review To The Mainline Linux Kernel
  6. An Intel-Based Ubuntu Touch Tablet Is Planning To Launch Soon
  7. MIAOW: An Open-Source GPU Design Based On AMD's Southern Islands
  8. X.Org Server 1.17 RC1 Released, Exciting For GLAMOR & Modesetting
  9. OpenGL 4.x Support For Mesa Still Inching Along
  10. Systemd 217: Many New Features, Even More Bug-Fixes
Latest Forum Discussions
  1. Is foolish currently develop in machine code, hexadecimal and assembly?
  2. Reducing The CPU Usage In Mesa To Improve Performance
  3. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  4. Advertisements On Phoronix
  5. nv and xorg.conf under Debian PPC
  6. Looking for a Open-Source AMD experienced Linux mentor
  7. Bad perfomance in gaming
  8. Dead Island for Linux (?)