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EXT4 Gains Aggressive Extent Caching, Improved Recovery

Written by Michael Larabel in Linux Storage on 5 September 2013 at 02:15 AM EDT. 3 Comments

Ted Ts'o has filed his EXT4 file-system changes for the Linux 3.12 kernel, which includes two new features and various other fixes/refinements for this widely-used and stable Linux file-system.

The two main items from the first EXT4 merge for Linux 3.12 include:

- Support for aggressive extent caching using the extent status tree. For end-users, Ted says this can lead to less memory usage for read-mostly workloads and improvements to asynchronous I/O.

- Improved recovery after corrupted allocation bitmaps when using the errors=ignore mount option.

There's also many other bug-fixes and other changes to find with this EXT4 file-system update for the Linux 3.12 kernel.

3 Comments

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.