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Date: Thu, 06 Feb 2003 09:41:44 +1300
From: Nigel Cunningham <ncunningham@clear.net.nz>
Subject: Re: [ACPI] Re: [PATCH] s4bios for 2.5.59 + apci-20030123
In-reply-to: <20030204221003.GA250@elf.ucw.cz>
To: Pavel Machek <pavel@ucw.cz>
Cc: "Grover, Andrew" <andrew.grover@intel.com>, ducrot@poupinou.org,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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On Wed, 2003-02-05 at 11:10, Pavel Machek wrote:
> Some people apparently want slower suspend/resume but have all caches
> intact when resumed. Thats not easy for swsusp but they can have that
> with S4bios. And S4bios is usefull for testing device support; it
> seems to behave slightly differently to S3 meaning better testing.

Whether its slower depends on the hardware; on my 128MB Celeron 933
laptop (17MB/s HDD), I can write an image of about 120MB, reboot and get
back up and running in around a minute and a half. That's about the same
as far as I remember, but has (as you say) the advantage of not still
having to get things swapped back in.

> 
> If you already have hibernation partition from factory, which you are
> using anyway for w98, S4bios is easier to use and more foolproof
> (i.e. you can't boot into wrong kernel which does not resume but does
> fsck instead).

It doesn't really matter what kernel is loaded when we start a resume
anyway, does it? Could they not be different versions because one is
going to replace the other anyway?

Regards,

Nigel


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