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. Rosewill RS-MI-01: An Ultra Low-Cost Mini-ITX Chassis
  2. D-Link DCS-2330L HD Wireless Network Camera
  3. Gigabyte AM1M-S2H
  4. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
Latest Linux Articles
  1. Red Hat Enterprise Linux 7.0 RC Benchmarks
  2. AMD Catalyst 14.4 Brings Few Linux Performance Improvements
  3. The Performance Of Fedora 20 Updated
  4. Clang Fights GCC On AMD's Athlon AM1 APU With Jaguar Cores
Latest Linux News
  1. More Steam Linux Tests/Benchmarks Might Be Coming
  2. NVIDIA's Amazing Single-Board ARM Computer Might Be Delayed
  3. Fedora 21 To Get A Playground, New Features
  4. PC-BSD Is Developing Its Own Desktop Environment
  5. Valve Is Bringing VOGL To Windows & Working On Regression Tests
  6. Canonical Is Taking Over Linux 3.13 Kernel Maintenance
  7. Google Web Designer Is Now Natively Available On Linux
  8. Ubuntu 14.10 Is Codenamed The Utopic Unicorn
  9. Audacious 3.5 Lightweight Audio Player Released
  10. Steam Updated For Ubuntu 14.04 LTS, SteamOS
  11. DNF 0.5 Yum Replacement Now Supports Groups
  12. Red Hat Enterprise Linux 7.0 Is Looking Fantastic
Latest Forum Discussions
  1. HTPC-upgrade advice: AMD Richland A8-7600 or Kaveri A10-6700T ???
  2. The GNOME Foundation Is Running Short On Money
  3. What Else Would You Like To See On Phoronix This Spring?
  4. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  5. The Most Amazing OpenGL Tech Demo In 64kb
  6. Announcing radeontop, a tool for viewing the GPU usage
  7. New card. Open source drivers only.
  8. Script for Fan Speed Control