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

Oracle's Chris Mason Talks Up Btrfs Features

Linux Kernel

Published on 05 April 2012 06:23 PM EDT
Written by Michael Larabel in Linux Kernel
2 Comments

Chris Mason, the Oracle engineer who's the lead developer of the Btrfs, just finished a session at the Linux Foundation Collaboration Summit about his promising and feature-rich file-system.

The session's abstract was relatively mundane, "The Btrfs filesystem is quickly becoming a mature part of the Linux kernel. This talk will discuss the Btrfs roadmap and demonstrate some of the newest Btrfs features." And it was. It really wasn't too different from what was said at this year's Southern California Linux Expo.

Chris basically recapped the usual features talked about for Btrfs, iterated that the error-fixing Btrfs tool is still actively being worked on, and re-capped the big Btrfs file-system changes in the Linux 3.4 kernel.

Oracle's Chris Mason Talks Up Btrfs Features

For those that haven't heard one of Mason's Btrfs presentations in a while or are not familiar with the EXT4 successor, the key features he expresses are:

- The file-system is jointly developed by many companies, not just Oracle. The other contributors range from Intel to SUSE.

- All data and meta-data written is via copy-on-write.

- CRCs are maintained for all meta-data and data.

- Btrfs provides for efficient writable snapshots, which allows for interesting features like system roll-backs and other great stuff.

- Multi-device support and built-in support for various RAID levels.

- Online resize and defragmentation support.

- Transparent compression via Zlib and LZO file-system compression.

- Efficient storage for small files.

- Solid-state drive optimizations (SSD) along with TRIM support.

The recent progress that Chris noted at this afternoon's San Francisco event included:

- Extensive performance and stability fixes.

- New and improving repair tool.

- Background scrubbing support.

- Automatic repair of corrupt blocks.

- RAID re-striping.

- Configurable meta-data block sizes.

- Improved I/O error handling infrastructure.

For those wondering about the Btrfs file-system performance compared to EXT4, XFS, and others, see Ubuntu 12.04 LTS - Benchmarking All The Linux File-Systems. From consumer hardware there's also Testing Out The Btrfs Mount Options On Linux 3.2. New benchmarks of hard drives and solid-state drives from the Linux 3.4 kernel will be forthcoming.

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. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. Ubuntu 14.10 XMir System Compositor Benchmarks
  2. Btrfs RAID HDD Testing On Ubuntu Linux 14.10
  3. Ubuntu 14.10 Linux 32-bit vs. 64-bit Performance
  4. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
Latest Linux News
  1. What Linux Benchmarks Would You Like To See Next?
  2. Open-Source, Linux Support For Corsair Link Devices Slowly Materializing
  3. Cairo-Dock 3.4 Shows A Lot Of Progress, Works Toward EGL/Wayland Support
  4. Mesa 10.4 Tentatively Planned For Early December
  5. SteamOS Update 145 Brings Compositor, Update Fixes
  6. GStreamer 2014 Conference Videos Posted: Wayland, HTML5, 3D
  7. Nouveau Now Supports DRI3 Without GLAMOR
  8. Features Of The Linux 3.18 Kernel
  9. Debian Now Defaults To Xfce On Non-x86 Desktops
  10. Phoenix Is Trying To Be An Open Version Of Apple's Swift
Latest Forum Discussions
  1. Linux hacker compares Solaris kernel code:
  2. HOPE: The Ease Of Python With The Speed Of C++
  3. Users/Developers Threatening Fork Of Debian GNU/Linux
  4. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  5. AMD Releases UVD Video Decode Support For R600 GPUs
  6. Proof that strlcpy is un-needed
  7. xbox one tv tuner
  8. Bye bye BSD, Hello Linux: A Sys Admin's Story