From: Pavel Machek <pavel@ucw.cz>
To: Oliver Neukum <oliver@neukum.org>
Cc: linux-pm@lists.linux-foundation.org,
Zhang Rui <rui.zhang@intel.com>,
linux-acpi <linux-acpi@vger.kernel.org>
Subject: Re: [linux-pm] [RFC] why do we need run disk sync before entering?S3
Date: Sat, 23 May 2009 10:50:18 +0200 [thread overview]
Message-ID: <20090523085018.GA8782@elf.ucw.cz> (raw)
In-Reply-To: <200905230959.23018.oliver@neukum.org>
On Sat 2009-05-23 09:59:22, Oliver Neukum wrote:
> Am Freitag, 22. Mai 2009 17:33:57 schrieb Pavel Machek:
> > > Take ACPI for example, ACPI defines two ACPI battery states, one is
> > > "low" and another is "critical".
> > > OS enters S3/S4 when battery is low, while it performs an emergency
> > > shutdown when battery is in critical state. (ACPI spec 3.0b 3.9.4)
> > > So I'm wondering if it's right to enter S3 when we know that the system
> > > may lost power at anytime.
> >
> > Well, battery only lasts like 30 hours in S3. So if you leave your
> > notebook unattended for 30 hours, you'll loose recent changes.
>
> Even if the battery is very low you get 30 hours?
That will of course be less. 30 hours is really best case, on "good"
notebook.
What I was trying to point out is that even if you go into s3 with
machine fully charged, you'll loose your data after like 30 hours.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2009-05-23 8:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-13 1:20 [RFC] why do we need run disk sync before entering S3 Zhang Rui
2009-05-13 2:01 ` [linux-pm] " Alan Stern
2009-05-13 8:03 ` Rafael J. Wysocki
2009-05-13 8:45 ` Pavel Machek
2009-05-13 8:53 ` Rafael J. Wysocki
2009-05-13 8:57 ` Pavel Machek
2009-05-13 14:06 ` Alan Stern
2009-05-13 14:16 ` Rafael J. Wysocki
2009-05-14 9:42 ` Pavel Machek
2009-05-15 1:00 ` Henrique de Moraes Holschuh
2009-05-15 9:08 ` suspending machine from kernel (was Re: [linux-pm] [RFC] why do we need run disk sync before entering S3) Pavel Machek
2009-05-15 21:15 ` Henrique de Moraes Holschuh
2009-05-15 14:36 ` [linux-pm] [RFC] why do we need run disk sync before entering S3 Rafael J. Wysocki
2009-05-18 7:25 ` Zhang Rui
2009-05-22 15:33 ` Pavel Machek
2009-05-23 7:59 ` Oliver Neukum
2009-05-23 8:50 ` Pavel Machek [this message]
2009-05-23 9:05 ` [linux-pm] [RFC] why do we need run disk sync before entering?S3 Oliver Neukum
2009-05-23 9:45 ` Pavel Machek
2009-05-24 21:02 ` Oliver Neukum
2009-05-24 21:14 ` Pavel Machek
2009-05-19 1:03 ` [RFC] why do we need run disk sync before entering S3 Nigel Cunningham
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