linux-kernel - Re: [RESEND PATCH v2 0/2] Add support for ZSTD-compressed kernel

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Message-ID: <20180817165403.GC12066@tassilo.jf.intel.com>
Date:   Fri, 17 Aug 2018 09:54:03 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     René Rebe <rene@...ctcode.com>
Cc:     Nick Terrell <terrelln@...com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        Kernel Team <Kernel-team@...com>, Chris Mason <clm@...com>,
        Adam Borowski <kilobyte@...band.pl>,
        Julian Andres Klode <julian.klode@...onical.com>
Subject: Re: [RESEND PATCH v2 0/2] Add support for ZSTD-compressed kernel

On Fri, Aug 17, 2018 at 06:15:45PM +0200, René Rebe wrote:
> Hey,
> 
> is there any mainline future for this zstd support? Currently my most favourite compressor for this, and for what it’s worth zstd/initrd now even tested on #t2sde / hp/pa-risc, … https://www.youtube.com/watch?v=MHplOJxnIHk

Can you remove some other compressor for the kernel image if you merge this?

The "favourite compressor" seems to roughly change every year, so if
we keep adding new ones things will get more and more convoluted.

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.

-Andi