SquashFS In Linux 3.19 Adds LZ4 Compression Support
Written by Michael Larabel in Linux Kernel on 14 December 2014 at 05:00 PM EST. 2 Comments
LINUX KERNEL --
Within the in-development Linux 3.19 kernel is now support for LZ4 compression for SquashFS, the read-only file-system commonly used by various Linux distribution live CDs.

SquashFS originally compressed its data with Gzip but for a few years now has supported LZMA and LZO. With Linux 3.19, LZ4 is added to the list. Optional LZ4 compression support is added to SquashFS for Linux 3.19. LZ4 is a lightweight compression algorithm and its implementation is intended for embedded systems with reduced CPU usage and lower memory overhead in comparison to Zlib.

LZ4 for SquashFS is the only major change for the read-only file-system of Linux 3.19. The pull request by Phillip Lougher was just sent in a few minutes ago to the Linux kernel mailing list.
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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 10,000 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 or contacted via MichaelLarabel.com.

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