HTree indexing for larger directories.Įxt3 adds the following features to ext2: It is also considered safer than the other Linux file systems, due to its relative simplicity and wider testing base. Benchmarks suggest that ext3 also uses less CPU power than ReiserFS and XFS. The performance (speed) of ext3 is less attractive than competing Linux filesystems, such as ext4, JFS, ReiserFS, and XFS, but ext3 has a significant advantage in that it allows in-place upgrades from ext2 without having to back up and restore data. 2.7 Near-time extinction due to date-stamp limitation.Its main advantage over ext2 is journaling, which improves reliability and eliminates the need to check the file system after an unclean shutdown. The filesystem was merged with the mainline Linux kernel in November 2001 from 2.4.15 onward. Stephen Tweedie first revealed that he was working on extending ext2 in Journaling the Linux ext2fs Filesystem in a 1998 paper, and later in a February 1999 kernel mailing list posting.
It used to be the default file system for many popular Linux distributions.
Extfs wikipedia windows#
Linux, BSD, ReactOS, Windows (through an IFS)Įxt3, or third extended filesystem, is a journaled file system that is commonly used by the Linux kernel. Unix permissions, ACLs and arbitrary security attributes (Linux 2.6 and later) Modification (mtime), attribute modification (ctime), access (atime)Īllow-undelete, append-only, h-tree (directory), immutable, journal, no-atime, no-dump, secure-delete, synchronous-write, top (directory) Table, hashed B-tree with dir_index enabled