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MeeGo Using Btrfs As Default File-System

Intel

Published on 11 May 2010 04:16 PM EDT
Written by Michael Larabel in Intel
2 Comments

MeeGo, the mobile Linux operating system that came about when Intel and Nokia joined forces to marry Moblin and Maemo, will be using Btrfs as its default file-system.

A very early MeeGo development release has been available for a few weeks and there is also an Intel App Store in development. The latest news for MeeGo is that it's using Btrfs as its default file-system, as confirmed on the mailing list.

MeeGo is now the first high-profile Linux distribution that will be deploying Btrfs by default. Btrfs has been in the mainline Linux kernel since the Linux 2.6.29 release and has been an Anaconda installation option within Fedora for a few releases. With Fedora 13, when using the Btrfs file-system it can even provide Linux system rollback support.

Our initial Btrfs benchmarks found it to not be a performance king, yet, but that was about a year ago. Since then the performance of Btrfs has improved while at the same time the performance of EXT4 -- the file-system currently used by a majority of the Linux distributions -- has regressed. Here are our most recent benchmarks comparing the performance of EXT4 and Btrfs using the Linux 2.6.34 kernel. Two months back we also showed how Btrfs compares to Reiser4.

Beyond offering competitive performance, Btrfs offers a greater feature set than the EXT4 file-system that evolved from EXT3. Btrfs offers support for online defragmentation, online balancing, transparent zlib compression, sub-volumes and snapshot support, object-level mirroring and stripping, and block discard support.

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 .
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