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 Still Working On Power-Aware Scheduling

Hardware

Published on 11 October 2013 03:54 PM EDT
Written by Michael Larabel in Hardware
1 Comment

ARM and other Linux stakeholders are still working to bring power-aware scheduling to the kernel.

Back in July an ARM developer presented a power-aware scheduler for the Linux kernel. The focus of this work is to deliver power-efficient performance on Linux by having a power scheduler live next to the kernel's process scheduler for monitoring CPU loads and better coordinating power policy and scheduler decisions.

After three months, Morten Rasmussen of ARM today published the second revision to the power-aware scheduling patches. The proposal was discussed last month at the Linux Plumbers' Conference and the design revised to provide a high-level power driver interface.

This interface then allows the scheduler to query the power driver for information to guide its power management decisions. The power driver intends to be unified and eventually replace cpufreq and cpuidle drivers while also allowing platforms to implement their own policies as part of the power drivers.

More information on the power-aware scheduler work along with the seven new patches can be found on the Linux kernel mailing list.

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. X.Org Server 1.16 Officially Released With Terrific Features
  2. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  3. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
  4. Linux 3.16 File-System Tests On A Hard Drive
Latest Linux News
  1. The Linux Kernel Bang-Bang Thermal Governor Is Banging
  2. NVIDIA Releases K1-Powered Shield Tablet & Controller
  3. Xen Project Announces Mirage OS 2.0
  4. Canonical Community Team Changes Announced For Ubuntu
  5. Raspberry Pi B+ ARM Debian Benchmarks
  6. Mozilla Unleashes Firefox 31 Web Browser
  7. GCC 5.0 Is Expected Next Year
  8. PHP5's Successor Might Be PHP7
  9. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  10. AMDKFD Driver Still Evolving For Open-Source HSA On Linux
Latest Forum Discussions
  1. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  2. Next-Gen OpenGL To Be Announced Next Month
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. AMD Publishes Open-Source Linux HSA Kernel Driver
  6. KDE Plasma 5 Officially Released
  7. Vote For GOG To Make Galaxy Open Source
  8. TSC Problem on Gigabyte GA-X79-UP4 (rev 1.1)