Phoronix: LessFS Pairs De-Duplication With Snappy Compression

Btrfs isn't the only file-system to take advantage of Google's Snappy compression as a speedy means of transparent file compression, but the LessFS file-system has also supported Snappy for the past few months. This open-source file-system also has de-duplication support...

http://www.phoronix.com/vr.php?view=MTA0MzQ