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

RC6 Is Now Flipped On For Intel SNB, IVB Hardware

Intel

Published on 16 December 2011 04:03 PM EST
Written by Michael Larabel in Intel
Comment On This Article

RC6 power-savings is now on by default for Intel Sandy Bridge and Ivy Bridge graphics hardware in the upcoming Linux 3.2 kernel.

RC6 allows for increased power savings and improved performance by allowing the graphics processor to enter a lower power state. We knew Intel was planning for RC6 in Linux 3.2, but the commit was finally pulled today by Linus Torvalds.

It's this commit in the mainline kernel that lands the support. Earlier generations of Intel graphics hardware don't have RC6 enabled there since it's likely broken. The RC6 feature can also be manually toggled via the i915.i915_enable_rc6 kernel module parameter.

It's a bit interesting that Linus decided to pull this patch so late in the Linux 3.2 cycle when he's been cracking down on non-regression-fixes at this point in the cycle and RC6 has been known to be problematic in the past. Just recently Linus was ranting about another Linux DRM pull for Linux 3.2 that he ultimately rejected on the basis of not being a regression fix.

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. Intel Pentium G3258 On Linux
  2. SilverStone Precision PS10
  3. ASRock Z97 Extreme6
  4. Nouveau Re-Clocking Is Way Faster, Shows Much Progress For Open-Source NVIDIA
Latest Linux Articles
  1. KVM Benchmarks On Ubuntu 14.10
  2. X.Org Server 1.16 Officially Released With Terrific Features
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
Latest Linux News
  1. Intel Adds BPTC Texture Compression To Their Mesa Driver
  2. The Linux Kernel Bang-Bang Thermal Governor Is Banging
  3. NVIDIA Releases K1-Powered Shield Tablet & Controller
  4. Xen Project Announces Mirage OS 2.0
  5. Canonical Community Team Changes Announced For Ubuntu
  6. Raspberry Pi B+ ARM Debian Benchmarks
  7. Mozilla Unleashes Firefox 31 Web Browser
  8. GCC 5.0 Is Expected Next Year
  9. PHP5's Successor Might Be PHP7
  10. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
Latest Forum Discussions
  1. Open-Source Radeon Performance Boosted By Linux 3.16
  2. In Road To Qt, Audacious Switches From GTK3 Back To GTK2
  3. Debian + Steam + r600
  4. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  5. Next-Gen OpenGL To Be Announced Next Month
  6. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. AMD Publishes Open-Source Linux HSA Kernel Driver