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Subject: Re: [RESEND PATCH v2 0/2] Add support for ZSTD-compressed kernel
From:   =?windows-1252?Q?Ren=E9_Rebe?= <rene@exactcode.com>
In-Reply-To: <20180817165403.GC12066@tassilo.jf.intel.com>
Date:   Fri, 17 Aug 2018 19:15:06 +0200
Cc:     Nick Terrell <terrelln@fb.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "x86@kernel.org" <x86@kernel.org>,
        Kernel Team <Kernel-team@fb.com>, Chris Mason <clm@fb.com>,
        Adam Borowski <kilobyte@angband.pl>,
        Julian Andres Klode <julian.klode@canonical.com>
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To:     Andi Kleen <ak@linux.intel.com>
Sender: linux-kernel-owner@vger.kernel.org
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Hi,

On 17 Aug 2018, at 18:54, Andi Kleen <ak@linux.intel.com> wrote:

> On Fri, Aug 17, 2018 at 06:15:45PM +0200, Ren=E9 Rebe wrote:
>> Hey,
>>=20
>> is there any mainline future for this zstd support? Currently my most =
favourite compressor for this, and for what it=92s worth zstd/initrd now =
even tested on #t2sde / hp/pa-risc, =85 =
https://www.youtube.com/watch?v=3DMHplOJxnIHk
>=20
> Can you remove some other compressor for the kernel image if you merge =
this?
>=20
> The "favourite compressor" seems to roughly change every year, so if
> we keep adding new ones things will get more and more convoluted.

Well, we (t2 formerly known as rocklinux) only changed our pkg archive =
compression from bzip2 to zstd once in 20 years ,-)

> Surely zstd is universally better than some existing compressor
> the kernel already uses for itself for a particular sweet spot?
> If it isn't it's likely not needed.

Well, IMHO this is not that much code, but if you want to remove =
something I guess bzip2 or LZMA may be candidates.

	http://zstd.net

--=20
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