linux-kernel - Re: Bootup time regression from 2.6.27 to 2.6.28-rc3+

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Message-ID: <20081109200918.GA4361@ics.muni.cz>
Date:	Sun, 9 Nov 2008 21:09:18 +0100
From:	Lukas Hejtmanek <xhejtman@....muni.cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Marcin Slusarz <marcin.slusarz@...il.com>,
	Arjan van de Ven <arjan@...radead.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Bootup time regression from 2.6.27 to 2.6.28-rc3+

On Sun, Nov 09, 2008 at 02:24:10PM +0100, Rafael J. Wysocki wrote:
> > > Do you have NO_HZ enabled?
> > > (Cc'ing Thomas)
> > 
> > indeed, I have. Should I try it without NO_HZ?
> 
> Yes, please.

I tried it, it is not better. I/O operations on /dev/sda1 often require a key
hit. It is AHCI driver.

-- 
Lukáš Hejtmánek
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