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 Benchmarking Platform
Phoromatic Test Orchestration

Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs

Google

Published on 19 August 2014 10:39 AM EDT
Written by Michael Larabel in Google
101 Comments

This week at LinuxCon North America in Chicago is a presentation by Google's Marc Merlin that's entitled "Why you should consider using btrfs, real COW snapshots and file level incremental server OS upgrades like Google does." The presentation does a good job at looking at the state of Btrfs on Linux and comparing it to ZFS.

Marc Merlin, a Linux admin at Google for more than one decade, is presenting on Thursday at LinuxCon Chicago about Btrfs. His slides are already available for those that can't make it to the windy city or are looking for an overview of what he'll be discussing.

Here's the highlights to Merlin's presentation:

- Marc has been running Btrfs on his laptop for the past two years and on other Linux systems more recently.

- Btrfs is recommended for its copy-on-write (COW) capabilities, snapshots are built into the file-system and offer good performance, meta-data is redundant and check-summed as well as the data, RAID 0/1/5/6 are built into the file-system, no need for multiple partitions or LVM volumes, built-in file compression, online background file-system scrubbing, block-level file-system diff backups, and support with btrfs-convert for converting an EXT3 file-system to Btrfs.

- Against ZFS, the former Sun file-system is more mature and offers slightly more features than Btrfs but its license is incompatible with the mainline Linux kernel and the file-system is very RAM hungry. It's unlikely Oracle will ever relicense ZFS from the CDDL to GPLv2 and offer a native port for the mainline Linux kernel.

- Oracle supports Btrfs in its commercial distribution, "basic Btrfs" is considered mostly stable, RAID 0/1 should be in good shape, Btrfsck repair tool is still incomplete, data de-duplication support is experimental, and file-system encryption isn't yet natively implemented.

- Many companies contribute to Btrfs from Facebook to Fusion-IO to Intel to Red Hat to SUSE.

- In terms of Btrfs production readiness from Marc's perspective, "If you pick the right btrfs release/kernel (you can let Oracle or Suse do this for you), you can look at Btrfs for production use." Additionally, "In a nutshell, while Btrfs is still experimental, it is usable in production environment for its core features."

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. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
  2. The Lenovo T450s Is Working Beautifully With Linux
  3. Linux 4.0 SSD EXT4 / Btrfs / XFS / F2FS Benchmarks
  4. Linux 4.0 Hard Drive Comparison With Six File-Systems
  5. Lenovo ThinkPad T450s Broadwell Preview
  6. How Open-Source Allowed Valve To Implement VULKAN Much Faster On The Source 2 Engine
Latest Linux News
  1. EXT4 In Linux 4.1 Adds File-System Level Encryption
  2. Open-Source Ardour 4.0 Audio Software Has Big Improvements
  3. Linux-Powered Endless Computer Raises $100k+ In A Few Days
  4. GCC 5.1 RC2 Arrives, GCC 5.1 Planned For Next Week
  5. F2FS For Linux 4.1 Has New Features & Fixes
  6. Phoronix Server Upgrade This Weekend: Dual Haswell Xeons, 96GB DDR4
  7. Google's Experimental QUIC Transport Protocol Is Showing Promise
  8. Red Hat Joins Khronos, The Group Behind OpenGL & Vulkan
  9. NetworkManager Drops WiMAX Support
  10. Wine 1.7.41 Works More On Kernel Job Objects, MSI Patches
Most Viewed News This Week
  1. Nouveau: NVIDIA's New Hardware Is "VERY Open-Source Unfriendly"
  2. Linux 4.0 Kernel Released
  3. Microsoft Announces An LLVM-Based Compiler For .NET
  4. Linux 4.1 Brings Many Potentially Risky x86/ASM Changes
  5. VirtualBox 5.0 Beta 2 Released
  6. KDBUS Is Taking A Lot Of Heat, Might Be Delayed From Mainline Linux Kernel
  7. Mozilla Start Drafting Plans To Deprecate Insecure HTTP
  8. LibreOffice 4.5 Bumped To Become LibreOffice 5.0