linux-kernel - Re: [RFC PATCH] treewide: remove bzip2 compression support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 15 Dec 2020 18:39:17 -0500
From:   "Alex Xu (Hello71)" <alex_y_xu@...oo.ca>
To:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-mips@...r.kernel.org,
        openrisc@...ts.librecores.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        linux-xtensa@...ux-xtensa.org
Subject: Re: [RFC PATCH] treewide: remove bzip2 compression support

Excerpts from Alex Xu (Hello71)'s message of December 15, 2020 2:03 pm:
> bzip2 is either slower or larger than every other supported algorithm,
> according to benchmarks at [0]. It is far slower to decompress than any
> other algorithm, and still larger than lzma, xz, and zstd.
> 
> [0] https://lore.kernel.org/lkml/1588791882.08g1378g67.none@localhost/
> 
> Signed-off-by: Alex Xu (Hello71) <alex_y_xu@...oo.ca>

Upon further research, I found that bzip2 removal was already 
implemented as part of zstd addition, but were apparently abandoned in 
an effort to get zstd in. I will check those patches and try sending 
those instead. Thanks to all reviewers for comments on this patch.