linux-kernel - Re: Hibernation Redesign

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Message-Id: <200707112200.43613.nigel@nigel.suspend2.net>
Date:	Wed, 11 Jul 2007 22:00:42 +1000
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	rjw@...k.pl, a1426z@...ab.com, jeremy@...p.org, jbms@....edu,
	pavel@....cz, nickpiggin@...oo.com.au,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: Hibernation Redesign

Hi.

On Wednesday 11 July 2007 21:54:58 Miklos Szeredi wrote:
> Freezing of tasks is slowing down suspend.  Don't know how serious
> this is, suspend is pretty fast, but could possibly be even faster.

It's FUD. Freezing of tasks normally takes next to no time. I've never 
understood the rediculously long timeout it has. If freezing succeeds, all 
processes are frozen within 1/2 a second tops. If it fails, nothing is going 
to change in the following 19.5 seconds (or whatever it is if I don't 
remember the value properly).

Regards,

Nigel

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