linux-kernel - Re: Linux mdadm superblock question.

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Message-ID: <4B7C6D0C.6020801@zytor.com>
Date:	Wed, 17 Feb 2010 14:26:20 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Volker Armin Hemmann <volkerarmin@...glemail.com>
CC:	Nick Bowler <nbowler@...iptictech.com>, david@...g.hm,
	Kyle Moffett <kyle@...fetthome.net>,
	Rudy Zijlstra <rudy@...mpydevil.homelinux.org>,
	Neil Brown <neilb@...e.de>,
	"Mr. James W. Laferriere" <babydr@...y-dragons.com>,
	Bill Davidsen <davidsen@....com>,
	Michael Evans <mjevans1983@...il.com>,
	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org
Subject: Re: Linux mdadm superblock question.

On 02/17/2010 10:46 AM, Volker Armin Hemmann wrote:
> 
> well at the moment it takes less than two seconds until init takes over.
> 
> Adding .5 seconds is a lot. And loading the initrd and changing root isn't 
> free either, true?
> 
> I remember well all the noise in the past about making linux booting faster. 
> So why slow it down with an initrd - especially if you can do without?
> 

Note that an extremely lightweight initramfs can quite possibly be
faster than doing it in the kernel, just because userspace is so much
less constrained.  I was hoping klibc would catch on for this stuff, but
it hasn't as much as I'd like.

	-hpa
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