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 Rewrites TurboStat Plus IVB CPU Idle Support

Intel

Published on 27 July 2012 11:32 AM EDT
Written by Michael Larabel in Intel
1 Comment

Another one of the pulls going into the Linux 3.6 kernel this week is the ACPI and power management updates courtesy of Intel. The two prominent changes for this next Linux kernel release is a rewrite of the "turbostat" tool and the "intel_idle" CPU idle driver now supports Ivy Bridge processors.

Len Brown of Intel had his ACPI and power management update pulled by Linus on Thursday. There's some generic cpuidle driver work, thermal management changes for non-ACPI systems, and an ACPICA core update, but the two key changes for Linux 3.6 are:

- Intel's "turbostat" tool has been re-written. Turbostat is the Intel utility living within the kernel tree for reporting processor frequency and idle statistics for recent Intel Core and Atom processors, namely those supporting Intel Turbo Boost Technology. The turbostat rewrite is primarily for lowering the overhead in order to measure very large systems when they are completely idle.

- The "intel_idle" driver now supports Ivy Bridge processors. This is the CPU idle driver that is optimized for Intel hardware with more specific hardware idle features compared to the generic acpi_idle driver. This may lead to Intel Ivy Bridge power savings when upgrading to the Linux 3.6 kernel.

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. Elasticsearch & wxPython 3 Proposed For Fedora 22
  2. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  3. GTK+ On Windows Now Supports OpenGL
  4. New Ruby Benchmarks On GCC vs. LLVM Clang Compilers
  5. Multi-Stream Transport 4K Monitors To Become Better Supported On Linux
  6. New Supertuxkart Beta Lands New Graphics Engine, Uses OpenGL 3.1+
  7. SuperX 3.0 Beta Continues To Polish The KDE Desktop Experience
  8. Radeon vs. Modesetting DDX Performance Comparison
  9. Linux Mint 17.1 RCs Out For Xfce & KDE
  10. New Input Drivers Coming For Linux 3.19 Kernel
Latest Forum Discussions
  1. XLennart: A Game For Systemd Haters With Nothing Better To Do
  2. Microsoft buying Mojang
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Premium subscription "login" times out much faster than forum
  5. AMD Catalyst 14.12 Linux Driver Released -- Huge Update!
  6. Did Valve already get what they wanted from SteamOS? i.e. Win kernel + BigPicture DE
  7. Advertisements On Phoronix
  8. Hurrican SDL Port