先日mainlineであるKernel 3.13が公開されたとの記事を書きましたが、早くもUbuntu用パッケージが公開されていました。
更新内容は以下のとおりです。
- The multi-queue block layer (blk-mq) was merged. It provides better disk (SSD) performance and with lower disk latencies by allowing I/O load to now be balanced across multiple CPU cores, supporting multiple hardware queues, etc. The multi-queue block layer can scale much better and developers have reported improvements in the range of 3.5 to 10 times greater IOPS and a 10 to 38x reduction in latency.
- The AMD hardware on the open-source driver now supporting the reading of ELD audio information, 7.1 channel audio support on capable hardware, and DTS HD-MA and TrueHD audio support. The Radeon HDMI driver is now enabling HDMI audio support by default where as on earlier kernels it required a special kernel command-line switch due to some users experiencing problems.
- AMD has published open-source Hawaii GPU support to allow the Radeon R9 290 series to work on Linux without Catalyst. Besides needing Linux 3.13, you will also need other new code in user-space.
- For users of the open-source Radeon driver there is now dynamic power management being enabled by default. It allows AMD GPUs to dynamically adjust their clock speeds and voltages based upon load, allowing for lower heat output and energy consumption while idling.
- There’s now NFTables as the eventual replacement to IPTables.
- New power management and re-clocking code for the open-source NVIDIA (Nouveau) driver. With the new power management code is now fan management being enabled by default. The re-clocking work does include support for GeForce 400/500 “Fermi” and GeForce 600/700 “Kepler” GPUs, but this re-clocking support isn’t yet ready for use or enabled by default.
- There’s now an Armada DRM driver in the mainline kernel along with PRIME and Render Nodes improvements to the MSM driver, overall continuing to improve the open-source ARM graphics landscape on Linux.
- There’s ongoing work with Btrfs performance tuning.
- Samsung’s F2FS supports new features as the promising Flash-Friendly File-System.
- In making the Linux power efficiency and performance competitive, there’s been a number of changes to ACPI and power management, including more hardware having CPUfreq drivers.
- While part of the power management work, Linux 3.13 introduces a Linux Power-Capping Framework and Run-Time Average Power Liming driver from Intel. The RAPL driver allows limiting power consumption of certain components from exceeding defined thresholds.
- Intel’s open-source Direct Rendering Manager driver now supports HDMI Stereo/3D. This support is for the HDMI specification’s handling of a standardized stereoscopic 3D display format since version 1.4.
手順
1. Kernelパッケージをダウンロードする。
32bitの場合：
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/linux-headers-3.13.0-031300-generic_3.13.0-031300.201401192235_i386.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/linux-headers-3.13.0-031300_3.13.0-031300.201401192235_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/linux-image-3.13.0-031300-generic_3.13.0-031300.201401192235_i386.deb64bitの場合：
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/linux-headers-3.13.0-031300-generic_3.13.0-031300.201401192235_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/linux-headers-3.13.0-031300_3.13.0-031300.201401192235_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-trusty/linux-image-3.13.0-031300-generic_3.13.0-031300.201401192235_amd64.deb2. ダウンロードしたパッケージをインストールする。
sudo dpkg -i linux-headers-3.13.0-*.deb linux-image-3.13.0-*.deb3. 再起動して、適用したパッケージで起動してくることを確認する。問題があった場合は以下のコマンドを実行し、パッケージを削除する。
sudo apt-get remove linux-headers-3.13.0-* linux-image-3.13.0-*
