Language Selection

English French German Italian Portuguese Spanish

Kernel Log: Coming in 3.10 (Part 2)

Filed under
Linux

Linux 3.10 will include the "block-layer cache" bcache, which can be used to configure one disk as a cache for another disk; a fast SSD, for example, could be used as a cache for a slower hard drive with more capacity. This kind of SSD cache can speed up access to frequently read data and take on write requests until a quieter moment when they can be written to the slower disk.

Bcache is the work of Kent Overstreet of Google, which has been using the tool to improve productivity for some time now; after dm-cache, which was integrated into Linux 3.9 , it is the second cache framework of this kind to be added to the Linux kernel. As device mapper maintainer Alasdair Kergon pointed out at LinuxTag a month ago, the two solutions work in somewhat different ways, which means that one or the other could be the right choice depending on the situation.

Bcache is designed to be better for situations with several small write operations that can then be transferred to the hard drive in a more orderly fashion. A few developers have tried to benchmark the caching solutions recently (1, 2 and others), often including SSD caching software EnhanceIO, which has not yet been integrated into the Linux kernel.

rest here




More in Tux Machines

Second Alpha Build of Liquid Lemur Linux 2.0 Brings LibreOffice 5, Based on Debian 8

Edward Snyder, the creator and maintainer of the Debian-based Liquid Lemur Linux distribution, has announced the release and immediate availability for download of the second Alpha build of the upcoming Liquid Lemur Linux 2.0 distro. Read more

Manjaro Linux 0.8.13.1 Fluxbox Edition Gets Linux Kernel 4.1 LTS, Download Now

The Manjaro Linux team, through Bernhard Landauer, has proudly announced the release of an updated version of the Manjaro Linux Fluxbox Edition, namely 0.8.13.1, which features an updated Linux kernel and numerous improvements. Read more

NVIDIA reveals GPUs for blade servers, Linux desktop support

VMworld 2015 NVIDIA has announced the second version of its Grid desktop virtualisation software, complete with a pair of GPUs for blade servers. NVIDIA is pitching GRID as a hardware offering tuned to the needs of graphically-demanding desktop virtualisation (VDI) workloads. If that sounds a bit exotic, consider environments like the resources industry, where on-site engineers need CAD and modelling tools, but miners are loathe to deploy desktops in the remote sites where stuff gets dug out of the ground. VDI works a treat in such spots. Read more

GNU Linux-libre 4.2-gnu is now available

Many new drivers required cleaning of their blob-requesting-and-loading machinery. Various others needed deblobbing updates due to blob name changes and false positives. Read more Also: