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 P-State Driver Gets Broadwell Support In Linux 3.16

Intel

Published on 30 May 2014 11:05 AM EDT
Written by Michael Larabel in Intel
Comment On This Article

Intel Broadwell processors will be supported by the P-State driver with the upcoming Linux 3.16 kernel release.

Rafael Wysocki sent out the initial ACPI/PM commit queue of the work he plans to send via pull request into the Linux 3.16 kernel when its merge window opens in June.

There's a lot of ACPI and power management changes lined up for this next Linux kernel cycle. Worth pointing out for Phoronix readers is that Intel's P-State driver now has Broadwell CPU ID support for controlling the CPU frequency scaling in place of ACPI CPUfreq. Here's some recent CPUfreq vs. P-State benchmarks for those interested.

The ACPI/PM pull also has changes for always using the deepest C-state in the "freeze" sleep state, updated documentation, enabling the ARM big.LITTLE cpufreq driver on ARM64, and many bug-fixes.

The full list of currently queued ACPI and power management patches for Linux 3.16 can be found via the kernel mailing list while some more patches might still be pulled before the release of Linux 3.15.

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. FSF's High Priority Project List Now Has A Committee
  2. Details On Using OpenACC & GPUs With GCC
  3. Ubuntu 15.04 Alpha 1 For Its Various Flavors
  4. Git 2.2.1 Released To Fix Critical Security Issue
  5. WTFTW: A Tiling Window Manager Written In Rust
  6. Jolla's Sailfish OS Update 10 Is Now Available
  7. HP To Launch Linux++ Operating System Next Year
  8. Civilization: Beyond Earth Launches For Linux
  9. NIR Has Been Revised As A New IR For Mesa
  10. New 64-bit Linux Kernel Vulnerabilities Disclosed This Week
Latest Forum Discussions
  1. Are there an app using HSA ?
  2. XLennart: A Game For Systemd Haters With Nothing Better To Do
  3. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  4. Debian init discussion in Phoenix Wright format
  5. Bench specific mount point
  6. Tool for measuring FPS in games
  7. Need some hand holding with upgrading xserver
  8. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support