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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  2. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
  3. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
  4. MSAA RadeonSI Gallium3D Performance Preview
Latest Linux News
  1. X.Org Server Shatter Project Fails
  2. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  3. Fedora 21 Alpha Finally Coming Next Week
  4. Ubuntu Touch/Phone Reaches Its First RTM Image
  5. The KMS Mode-Setting Driver Was Imported For X.Org Server 1.17
  6. SNA & UXA Intel Benchmarks With X.Org Server 1.16
  7. Graphics Driver Changes Coming In The Linux 3.18 Kernel
  8. Tropico 5 Being Released For Linux Gamers This Week
  9. Eclipse IDE Starts Firing Up On Wayland's Weston
  10. OpenSUSE Announcement On SUSE's Recent Merger
Latest Forum Discussions
  1. Stop grabbing my keyboard :(
  2. New Group Calls For Boycotting Systemd
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Best Radeon for a Power Mac G5?
  5. New stress testing utility for GPU's
  6. Hd 6850
  7. support for first generation UVD blocks (RV6xx, RS780, RS880 and RV790)
  8. Nvidia joins the ranks of Apple and Microsoft