, 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.