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From: Austin S Hemmelgarn <ahferroin7@gmail.com>
To: Christian Ruppert <christian.ruppert@abilis.com>,
	Pavel Roskin <proski@gnu.org>
Cc: linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Vineet Gupta <Vineet.Gupta1@synopsys.com>,
	Noam Camus <noamc@ezchip.com>
Subject: Re: Uncompressed kernel doesn't build on x86_64
Date: Thu, 14 Nov 2013 09:13:44 -0500	[thread overview]
Message-ID: <5284DA98.1060402@gmail.com> (raw)
In-Reply-To: <20131114083247.GB9687@ab42.lan>

On 2013-11-14 03:32, Christian Ruppert wrote:
> 2. A patch to enable uncompressed x86 kernels. As stated above, I don't
>    think this makes a lot of sense in itself but it might serve as an
>    example for people working on other platforms with self-extracting
>    kernels and the nozip not-decompression algorithm might be useful on
>    those platforms as well. I only had a single x86-64 machine available
>    to test this, however, so some more testing might be required.

I disagree with the argument that an uncompressed x86 kernel doesn't
make sense, If you have a very fast boot device, then it is fully
conceivable that an uncompressed kernel could boot faster than a
compressed one.  I have seen a very large number of systems where the
LZO compression boots at least twice as fast as gzip or bz2 (because the
disks are fast enough that a few megabytes of size difference make much
less of an impact than a slow decompressor).

  parent reply	other threads:[~2013-11-14 14:13 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-13 16:34 Uncompressed kernel doesn't build on x86_64 Pavel Roskin
2013-11-13 16:49 ` H. Peter Anvin
2013-11-14  8:32 ` Christian Ruppert
2013-11-14  8:38   ` [PATCH 1/2] init/Kconfig: add option to disable kernel compression Christian Ruppert
2013-11-14 10:21     ` Vineet Gupta
2013-11-15 16:57       ` Christian Ruppert
2013-11-16  9:41         ` Vineet Gupta
2013-11-14  8:38   ` [PATCH 2/2] x86: Add support for uncompressed kernel images Christian Ruppert
2013-11-14 17:31     ` H. Peter Anvin
2013-11-15  9:31       ` Christian Ruppert
2013-11-14 17:45     ` H. Peter Anvin
2013-11-15  9:49       ` Christian Ruppert
2013-11-15 10:06         ` H. Peter Anvin
2013-11-14 14:13   ` Austin S Hemmelgarn [this message]
2013-11-14 23:38     ` Uncompressed kernel doesn't build on x86_64 Pavel Roskin

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