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 Linux Power Regression Still Being Worked On

Intel

Published on 12 December 2013 02:19 AM EST
Written by Michael Larabel in Intel
12 Comments

A few days back I wrote about an Intel Linux developer finding a 50 Watt power regression within the kernel since the 3.10 release. At first it looked like it might be easily solved, but the issue is still being investigated and Intel hardware engineers are now getting involved in the matter.

It looks like the Intel power regression on the Linux 3.10+ (through at least Linux 3.13 Git right now) might be more widespread than originally thought and for large, multi-socket systems could come down to large power consumption differences in not being allowed to fully idle. Len Brown wrote on Wednesday in a new mailing list post that he's now checking with the Intel hardware engineers about the matter.

The kernel developers do appear to have an understanding for the issue so hopefully the power issues will be solved in time for the Linux 3.13 kernel final release in the weeks ahead. New Linux power benchmarks are still forthcoming on Phoronix; hit up the mailing list thread if you want all the latest on the technical discussion surrounding this Intel CPU power issue on Linux.

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 R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  2. Intel Pentium G3258 On Linux
  3. SilverStone Precision PS10
  4. ASRock Z97 Extreme6
Latest Linux Articles
  1. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  2. KVM Benchmarks On Ubuntu 14.10
  3. X.Org Server 1.16 Officially Released With Terrific Features
  4. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
Latest Linux News
  1. A New Video Has Us Real Excited About The New UT For Linux
  2. CoreOS Experiences Its First Stable Release
  3. GNOME 3.13.4 Continues Working On Wayland & More
  4. Wine 1.7.23 Has Initial Support For 64-bit Android Builds
  5. FreeBSD Developing A New Automounter, Other Features
  6. Guix 0.7 Can Now Install The GNU Operating System
  7. X.Org Foundation Still Works Towards Becoming An SPI Project
  8. Open-Source AMD Hawaii Support Should Now Be Working!
  9. KDE Developers Continue Working Toward Wayland Support
  10. Ubuntu 14.04.1 LTS Released
Latest Forum Discussions
  1. Debian + radeonsi
  2. New build, first Linux PC, what could go wrong? ;)
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  5. Radeon related kernel bug??
  6. how the US intellegentia operates:
  7. AMD Publishes Open-Source Linux HSA Kernel Driver
  8. Next-Gen OpenGL To Be Announced Next Month