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Berita terbaru dari Phoronix.com, versi terbaru Ubuntu yang akan dirilis pada April 2009 mendatang sudah mendukung Sistem File EXT4. Apa perbedaan Sistem File EXT4 dengan pendahulunya (EXT3)? Berikut kutipan dari Phoronix.com:
One of the major differences between EXT4 and EXT3 (and EXT2 for that matter) is the introduction of Extents. The Extents feature replaces block mapping, which is designed to improve performance with the creation of larger files, and will reduce fragmentation on the hard disk. Extents are similarly used within Reiser4, XFS, and Apple's HFS+. Some of the other features for EXT4 include delayed allocation, persistent pre-allocation, and journal check summing. The EXT4 file-system supports partition sizes up to 1 Exabyte and up to 640,000 sub-directories per directory.
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