From: Gu Zheng <guz.fnst@cn.fujitsu.com>
To: Phillip Lougher <phillip@squashfs.org.uk>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-embedded@vger.kernel.org
Subject: Re: [PATCH 0/2] Squashfs: add LZ4 compression
Date: Mon, 22 Jul 2013 11:05:30 +0800 [thread overview]
Message-ID: <51ECA17A.3060401@cn.fujitsu.com> (raw)
In-Reply-To: <1374459663-15363-1-git-send-email-phillip@squashfs.org.uk>
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
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next prev parent reply other threads:[~2013-07-22 3:05 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-22 2:21 [PATCH 0/2] Squashfs: add LZ4 compression Phillip Lougher
2013-07-22 2:21 ` [PATCH 1/2] Squashfs: add LZ4 compression support Phillip Lougher
2013-07-22 4:35 ` Joe Perches
2013-07-22 2:21 ` [PATCH 2/2] Squashfs: Add LZ4 compression configuration option Phillip Lougher
2013-07-22 3:05 ` Gu Zheng [this message]
2013-07-22 5:07 ` [PATCH 0/2] Squashfs: add LZ4 compression Phillip Lougher
2013-07-22 6:04 ` Gu Zheng
2013-07-22 13:38 ` Phillip Lougher
2013-07-26 22:00 ` Rob Landley
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