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 3.12 Changes, Kernel Feature Overview

Linux Kernel

Published on 03 November 2013 04:34 PM EST
Written by Michael Larabel in Linux Kernel
1 Comment

With the Linux 3.12 kernel likely being officially released this evening if there are no last-minute delays, here is a look again at some of the top features and changes for this major open-source Linux upgrade.

- First and foremost, there can be some big performance improvements which I had tracked down to being a change in the default CPUfreq governor. Open-source AMD Radeon graphics in particular should be a big benefactor. More details on Linux 3.12 performance changes can be found in my article earlier today covering Linux 3.12 kernel benchmarks.

- The Radeon open-source kernel graphics driver has improved Dynamic Power Management, but it won't be until Linux 3.13 where Radeon DPM is enabled by default along with HDMI audio.

- A brand new DRM/KMS driver in the form of the Snapdragon MSM driver written by Rob Clark to go along with his reverse-engineered Freedreno driver for Qualcomm Snapdragon/Adreno graphics.

- Run-time GPU power management so NVIDIA Optimus systems can dynamically power on/off the secondary GPU.

- Experimental DRM render nodes support done by David Herrmann over the summer.

- AMD Berlin APU support as the first APU built upon AMD's Heterogeneous System Architecture (HSA).

- The EXT4 file-system now supports aggressive extent caching and better recovery capabilities.

- Random F2FS, XFS, and Btrfs file-system improvements. This kernel does deliver on disk improvements.

- zRAM has been promoted out of the staging area of the kernel. ZRAM supports a compressed block device in RAM to avoid paging to disk and is mostly of benefit for systems with limited amounts of system memory.

- Various staging driver updates and sound driver work and other glorious work.

Stay tuned for more Linux 3.12 coverage and continued benchmarks while soon our focus will be all about Linux 3.13 with its Intel Broadwell support.

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 Articles & Reviews
  1. Samsung 850 EVO SSD Linux Benchmarks
  2. Kubuntu 15.04 Is Turning Out Quite Nice, Good Way To Try Out The Latest KDE
  3. 5-Way Linux Distribution Comparison On The Core i3 NUC
  4. OCZ ARC 100 Linux SSD Benchmarks
  5. Lenovo ThinkPad X1 Carbon Works Great As A Linux Ultrabook
  6. Transcend SSD370 256GB
Latest Linux News
  1. Mesa 10.5-RC3 Now Available To Test Improved GPU Drivers
  2. New Specifications On The Alleged Ubuntu Tablet
  3. LLVM 3.6 Officially Released With Many Compiler Advantages
  4. VLC 2.2 "Weathermax" Brings Better VP9 & H.265 Support
  5. Open-Source .NET On Linux Continues Maturing
  6. Features Coming For The Imminent Xfce 4.12 Release
  7. Canonical's Latest Demo Of Ubuntu Unity 8 Convergence In Action
  8. The Quest For Decent, Low-Priced Server Cases & Racks/Cabinets
  9. Mesa 10.5 Is In Ubuntu 15.04 For The Latest Open-Source GPU Drivers
  10. ALSA 1.0.29 Released
Most Viewed News This Week
  1. Linux 4.0-RC1 Tagged, Linux 4.0 Will Bring Many Notable Improvements
  2. Screenshots Of The GNOME 3.16 Changes
  3. More Proof That Allwinner Is Violating The GPL
  4. Linux 4.0 Doesn't Have The Weirdest Codename
  5. Mir Now Depends Upon C++14
  6. GNOME 3.16 Beta Brings Wayland-Based Log-in Screen
  7. LLVM Clang Compiling The Linux Kernel Is A Big Topic For 2015
  8. Canonical Comes Up With Its Own FUSE Filesystem For Linux Containers
%%CLICK_URL_UNESC%%