Hi Phillip, Have some tests been carried out to confirm that Squashfs really can get benefit from LZ4 compression, comparing with lzo? Thanks, Gu On 07/22/2013 10:21 AM, Phillip Lougher wrote: > Hi > > Now that LZ4 compression support is in 3.11-rc1, I have written the > following two patches for Squashfs to use it. > > Phillip Lougher (2): > Squashfs: add LZ4 compression support > Squashfs: Add LZ4 compression configuration option > > Documentation/filesystems/squashfs.txt | 8 +- > fs/squashfs/Kconfig | 15 +++ > fs/squashfs/Makefile | 1 + > fs/squashfs/decompressor.c | 7 ++ > fs/squashfs/decompressor.h | 4 + > fs/squashfs/lz4_wrapper.c | 163 ++++++++++++++++++++++++++++++++ > fs/squashfs/squashfs_fs.h | 1 + > 7 files changed, 195 insertions(+), 4 deletions(-) > create mode 100644 fs/squashfs/lz4_wrapper.c > > These patches are also available in the git tree here: > > browse: https://git.kernel.org/cgit/linux/kernel/git/pkl/squashfs-lz4.git > git clone: git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-lz4.git > > LZ4 support has (obviously) also been added to the squashfs-tools > (Mksquashfs and Unsquashfs). This is available from the Squashfs-tools > git repository here: > > browse: https://git.kernel.org/cgit/fs/squashfs/squashfs-tools.git > git clone: git://git.kernel.org/pub/scm/fs/squashfs/squashfs-tools.git > > When building the squashfs-tools edit the Makefile to enable LZ4 > support (by default it is disabled). > > LZ4 compression can be specified by using the -comp option, e.g. > % mksquashfs xxx img.sqsh -comp lz4 > > The use of LZ4 high compression can be specified using -Xhc, e.g. > > % mksquashfs xxx img.sqsh -comp lz4 -Xhc > > Phillip > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
