Linux Kernel News Archives
KTAP: A New Dynamic Tracing Tool For Linux

KTAP is an experimental project that's a new dynamic tracing tool for Linux. KTAP has several different design principles from SystemTap, one of the current most common dynamic instrumentation and tracing tools for Linux. This new project might satisfy some of those developers that have been wanting Sun/Oracle's DTrace to come to Linux.

31 December 2012 - KTAP - 1 Comment
What Didn't Make The Cut For The Linux 3.8 Kernel

While there's a lot of features that are new to the Linux 3.8 kernel as covered in The Feature Overview For The Linux 3.8 Kernel, there's also several promising new features and functionality that didn't make the cut for this next kernel release.

25 December 2012 - Missing Features - 6 Comments
VIA DRM/KMS Driver Still Not Ready For Linux 3.8

While there's a lot of great stuff to the Linux 3.8 kernel, with the merge window recently closed, one feature that's long been lacking from the mainline Linux kernel is support for kernel mode-setting (KMS) on VIA graphics hardware.

23 December 2012 - Linux 3.8 Kernel - 6 Comments
Hot-Data Tracking Still Baking For The Linux Kernel

A few months ago I wrote about hot-data tracking for the Linux kernel, a VFS feature that could be used by Btrfs and other Linux file-systems for delivering improved performance. Unfortunately the patch-set didn't make the new Linux 3.8 development cycle, but hot-data tracking is still being worked on for merging into a future Linux kernel release.

22 December 2012 - Hot-Data Tracking - 12 Comments
Linux Kernel Still Picking Up AVX Optimizations

Advanced Vector Extensions (AVX) have been present in Intel and AMD hardware since last year with Sandy Bridge and Bulldozer processors, respectively, but their use isn't too very widespread at this point. Fortunately, the Linux kernel has been receiving some AVX1/AVX2 optimizations.

19 December 2012 - MD Layer RAID6 - 2 Comments
Linux Dynticks Being Extended For Performance Wins

Dynticks, the Dynamic Tick Timer for allowing the Linux kernel to skip ticks while idling and resume to running at full HZ when encountering load, is in the process of being extended. Developers are working on making Dynticks work even under select workloads in order to enhance the performance of CPU-intensive tasks.

18 December 2012 - Dynticks - 5 Comments
There's A New Linux CPU Scheduler Based Upon BFS

A new CPU scheduler for the Linux kernel was announced on Saturday. This new scheduler is based upon the controversial "Brain Fuck Scheduler" scheduler but attempts to support multiple run-queues for better CPU scaling.

15 December 2012 - BFS Scheduler - 4 Comments
The 3.8 Kernel Is An Amazing Gift To Linux Users

While we are just a few days into the Linux 3.8 kernel merge window and there's still a number of pull requests that have yet to appear for this next kernel development cycle with new features, there's already a ton of exciting work. If you missed the horde of Phoronix articles in the past few days covering the prominent features, here's a recap showing why this Linux kernel being developed over the holidays is a great gift for its users.

15 December 2012 - Linux 3.8 - 7 Comments
FUSE Gets I/O Performance Improvements

The FUSE module, which allows for file-systems to be run from user-space, can now process direct I/O a-synchronously. This a-synchronous direct I/O can lead to very noticeable performance improvements for FUSE-based file-systems like ZFS.

15 December 2012 - FUSE - 8 Comments
Intel Makes Cryptography Faster On Linux

The Linux 3.8 kernel is continuing to pull in massive amounts of new code as shown by all of the noteworthy pull requests that have been highlighted on Phoronix in the past few days. The latest pull request to catch my interest has been the crypto work, thanks to performance-enhancing additions by Intel.

14 December 2012 - Linux 3.8 Crypto - 26 Comments
The Linux 3.8 Kernel Can Save A Lot Of RAM

For certain workloads with the Linux 3.8 kernel the physical memory usage is lowered by a significant amount thanks to improvements within this kernel that's presently under development.

13 December 2012 - Linux 3.8 Kernel - 6 Comments
Intel Still Hacking On Atomic Mode-Setting / Flipping

While it might be too late to make the Linux 3.8 kernel merge window, released on Wednesday were the latest patches for the ongoing work by Intel open-source developers and others to enact atomic mode-setting and page-flipping.

13 December 2012 - Intel Atomic - Add A Comment

1336 Linux Kernel news articles published on Phoronix.