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Ext4, a new Linux Filesystem 4 December, 2008

Posted by aronzak in Linux.
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Phoronix has tested the new Ext4 filesystem, which is a step up before going to the even newer and better btrfs system. Ext4 will be backwards and forwards compatible, with stable support coming soon in the upcoming 2.6.28 Linux kernel. Ext3 was adopted as default by mainstream Linux distributions, mainly due to its stability. It is not feature rich, however, lacking many useful deatures that are present in the alternative ZFS. Ext4 being a spepping stone should ensure mainstream adoption of new filesystem features.

In the tests, Ext4 outperforms ZFS in 5 of 8 tests. though the differences for ordinary users are not great. The exciting thing to watch will be btrfs, which will probably be released next year.

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