Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Tue, 15 Dec 2020 22:51:57 +0100
From:   Michal =?iso-8859-1?Q?Such=E1nek?= <msuchanek@suse.de>
To:     "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Cc:     linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-aspeed@lists.ozlabs.org, linux-mips@vger.kernel.org,
        openrisc@lists.librecores.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
        linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
        linux-xtensa@linux-xtensa.org, torvalds@linux-foundation.org
Subject: Re: [RFC PATCH] treewide: remove bzip2 compression support
Message-ID: <20201215215157.GJ6564@kitsune.suse.cz>
References: <20201215190315.8681-1-alex_y_xu.ref@yahoo.ca>
 <20201215190315.8681-1-alex_y_xu@yahoo.ca>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20201215190315.8681-1-alex_y_xu@yahoo.ca>
User-Agent: Mutt/1.11.3 (2019-02-01)
Precedence: bulk

Hello,

On Tue, Dec 15, 2020 at 02:03:15PM -0500, Alex Xu (Hello71) wrote:
> 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/

Sounds cool. I wonder how many people will complain that their
distribution migrated to bzip2 but got stuck there and now new kernels
won't work on there with some odd tool or another :p

> @@ -212,11 +209,6 @@ choice
>  	  Compression speed is only relevant when building a kernel.
>  	  Decompression speed is relevant at each boot.
>  
> -	  If you have any problems with bzip2 or lzma compressed
> -	  kernels, mail me (Alain Knaff) <alain@knaff.lu>. (An older
> -	  version of this functionality (bzip2 only), for 2.4, was
> -	  supplied by Christian Ludwig)
> -
Shouldn't the LZMA part be preserved here?

Thanks

Michal