linux-kernel - Re: Fast testing

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Message-ID: <49E5C997.3030804@imap.cc>
Date:	Wed, 15 Apr 2009 13:48:39 +0200
From:	Tilman Schmidt <tilman@...p.cc>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	Dragoslav Zaric <dragoslav.zaric.kd@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Cyrill Gorcunov <gorcunov@...il.com>
Subject: Re: Fast testing

Arjan van de Ven schrieb:
> On Tue, 14 Apr 2009 11:55:10 +0200
> Dragoslav Zaric <dragoslav.zaric.kd@...il.com> wrote:
> 
>> I have question regarding fast testing of some change in some kernel
>> source file. Since rebooting is a long process, there must be way to
> 
> Rebooting is bloody fast for me (0.7 seconds for the kernel start,
> about 3 to 4 seconds for the whole boot)....

Wow. Nice machine. I wish I had one like that. And how long until
the GUI is usable again and you can actually continue working?

For comparison: my 3.4 GHz Pentium D takes 30 secs for kernel start
(ie. until it begins looking for the filesystems), 6 mins for fsck
if it happens to decide my filesystems have gone too long without
checking, 2 mins until the graphical login screen appears, and
5 mins from logging in to the GUI being completely present.

> not sure that doing weird magic to save that is worth it...

Not for systems like yours, that's for sure, but perhaps for
systems like mine.

Thanks,
Tilman

-- 
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
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