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

Btrfs In Linux 3.4 Kernel Has Big Changes

Linux Kernel

Published on 30 March 2012 07:55 PM EDT
Written by Michael Larabel in Linux Kernel
17 Comments

As the latest work queued up for merging in the Linux 3.4 kernel is the Btrfs file-system pull, which Chris Mason describes as "pretty big, picking up patches that have been under development for some time."

Among the Btrfs Linux 3.4 changes is the merging of error handling patches from SUSE, reworked mata-data with page cache interaction (performance improvements!), more aggressive page dropping for freed meta-data blocks, and support for meta-data bigger than the page size (meta-data blocks up to 64KB in size while 16KB / 32KB sizes seem to work the best). There's also other fixes and updates, including to the Btrfs balancing and defragging code.

The SUSE patches have already been part of the SUSE Linux Enterprise Server kernel and make it possible to abort transactions and to go in a read-only mode upon hitting errors.

Unfortunately, the LZ4 compression and Snappy compression support for greater transparent file-system compression don't appear to be part of this 3.4 merge (though LZO/Zlib compression for Btrfs remains a mount option). Chris Mason also mentions the Btrfs RAID5/RAID6 support is on the table for the Linux 3.5 kernel.

Find out more information on Btrfs in the Linux 3.4 kernel via Mason's pull request.

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 Articles & Reviews
  1. Intel Broadwell: GCC 4.9 vs. LLVM Clang 3.5 Compiler Benchmarks
  2. Ubuntu vs. Fedora Linux On Lenovo's X1 Carbon With Core i7 Broadwell
  3. Ubuntu 15.04 Is The Easy Path To Better Performance On Intel Broadwell
  4. NVIDIA's Latest Maxwell Line-Up Against AMD With Catalyst On Linux
  5. Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell
  6. AMD FX-8320E Performance On Linux
Latest Linux News
  1. Calamares 1.0 Distribution-Independent Installer Framework Released
  2. Librem 15 Linux Laptop Set To Close At Around $400k USD
  3. Virtual GEM To Increase Mesa's Software Rasterizer Performance
  4. Open Lunchbox: Yet Another Open-Source Laptop Attempt
  5. Wayland/Weston 1.7 Release Candidate
  6. Bugzilla 5.0 Is Coming Soon With New Features
  7. Linux Benchmarking... Even Faster & A Very Interesting February
  8. Does VirtualBox VM Have Much A Future Left?
  9. HAMMER2 File-System Is Still Slowly Coming Together
  10. The Better Looking Window Decorations For GNOME 3.16
Most Viewed News This Week
  1. PlayStation 4 System Compiler Support Landing In LLVM
  2. Linux "GHOST" Vulnerability Hits Glibc Systems
  3. LibreOffice 4.4 Is Coming Soon With New Features
  4. LLVM Adds Options To Do Fuzz Testing
  5. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  6. LibreOffice 4.4 Released With Better OOXML Support, UI Improvements
  7. Vivaldi: A New Chromium-Powered, Multi-Platform Browser
  8. LZHAM 1.0 Lossless Data Compression Codec Released