From: Eric Biggers <ebiggers@kernel.org>
To: Gao Xiang <hsiangkao@aol.com>
Cc: linux-erofs@lists.ozlabs.org
Subject: Re: [WIP] [PATCH v0.0-20200229 00/11] ez: LZMA fixed-sized output compression
Date: Fri, 28 Feb 2020 20:58:42 -0800 [thread overview]
Message-ID: <20200229045842.GA930@sol.localdomain> (raw)
In-Reply-To: <20200229045017.12424-1-hsiangkao@aol.com>
On Sat, Feb 29, 2020 at 12:50:06PM +0800, Gao Xiang via Linux-erofs wrote:
> From: Gao Xiang <gaoxiang25@huawei.com>
>
> This is a WIP PREVIEW patchset, just for archiving to open
> source community only.
>
> For now, it implements LZMA SDK-like GetOptimumFast approach
> and GetOptimum is still on schedule.
>
> It's still buggy, lack of formal APIs and actively under
> development for a while...
>
> Usage:
> $ ./run.sh
> $ ./a.out output.bin.lzma infile
>
> It will compress the beginning as much as possible into
> 4k RAW LZMA block.
Why not just use liblzma?
Also, if you care enough about compression ratio to use LZMA instead of
Zstandard, why use only a 4 KB blocksize?
- Eric
next prev parent reply other threads:[~2020-02-29 4:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200229045017.12424-1-hsiangkao.ref@aol.com>
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 00/11] ez: LZMA fixed-sized output compression Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 01/11] ez: add basic source files Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 02/11] ez: add helpers for unaligned accesses Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 03/11] ez: introduce bitops header file Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 04/11] ez: lzma: add range encoder Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 05/11] ez: lzma: add common header file Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 06/11] ez: lzma: add byte hashtable generated with CRC32 Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 07/11] ez: lzma: add LZMA matchfinder Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 08/11] ez: lzma: add LZMA encoder Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 09/11] ez: lzma: checkpoint feature for range encoder Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 10/11] ez: lzma: add fixed-sized output compression Gao Xiang via Linux-erofs
2020-02-29 4:50 ` [WIP] [PATCH v0.0-20200229 11/11] ez: lzma: add test program Gao Xiang via Linux-erofs
2020-02-29 4:58 ` Eric Biggers [this message]
2020-02-29 5:27 ` [WIP] [PATCH v0.0-20200229 00/11] ez: LZMA fixed-sized output compression Gao Xiang
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