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 Linux Hardware Reviews
  1. Preview: AMD's FX-9590 Eight-Core At Up To 5.0GHz On Linux
  2. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  3. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  4. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
Latest Linux Articles
  1. Ondemand vs. Performance CPU Governing For AMD FX CPUs On Linux 3.17
  2. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  3. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  4. Testing For The Latest Linux Kernel Power Regression
Latest Linux News
  1. Marek Lands Radeon Gallium3D HyperZ Improvements
  2. Mozilla Firefox 32 Surfaces With HTML5, Developer Changes
  3. Nouveau X.Org Driver Released With DRI3+Present, Maxwell, GLAMOR
  4. Microsoft & AMD Release C++ AMP Compiler With Linux Support
  5. AMD, Wine & Valve Dominated August For Linux Users
  6. Linux 3.17-rc3 Kernel Released Back On Schedule
  7. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  8. Mesa 10.3 RC2 Arrives Via Its New Release Manager
  9. Ubuntu 14.10's Lack Of X.Org Server 1.16 Gets Blamed On AMD
  10. MSI Motherboard BIOS Updating Remains A Pain For Linux Users
Latest Forum Discussions
  1. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  2. Best Radeon for a Power Mac G5?
  3. The dangers of Linux kernel development
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. AMD Releases UVD Video Decode Support For R600 GPUs
  6. SSD seems slow
  7. Is laptop with Intel CPU and AMD dGPU worth buying considering especially AMD Enduro?
  8. Radeon HD5670 and Ubuntu 14.04