Suspend2 isn't invasive.

[Nigel Cunningham]

Hi.

On Mon, 2006-12-18 at 14:27 +0100, Tollef Fog Heen wrote:
> * Nigel Cunningham 
> 
> | On Sat, 2006-12-02 at 19:00 +0100, Tollef Fog Heen wrote:
> | > * Nigel Cunningham 
> | > 
> | > | On Fri, 2006-12-01 at 08:45 -0600, Travis Watkins wrote:
> | > | > On 12/1/06, Hervé Fache <Herve at lucidia.net> wrote:
> | > | > > As I said before on this list, one cannot judge suspend2 vs swsusp
> | > | > > until they try both, and I did. I started up with a biased stance
> | > | > > towards sticking to Linus' tree, but once you've tasted suspend2 it's
> | > | > > hard to go back to black screens and no info.
> | > | > 
> | > | > uswsusp can apparently give you the same thing here.
> | > | 
> | > | uswsusp promises to give most of the same things, but much of it is
> | > | still just promises.
> | > 
> | > I just coded usplash integration (again) for uswsusp, so the progress
> | > bit is covered.  It already has image compression and encrypted
> | > images.  It supports suspending to files, it supports aborting a
> | > suspend which has started.  It does not support arbitrary plugins, but
> | > the code is simple enough that adding any hooks which are missing
> | > seems easy enough.
> | > 
> | > So, I'd say it's on feature-parity with suspend2.
> | 
> | Ok. That's quite a lot of progress since I last checked. When you say
> | suspending to files, do you mean to swapfiles or to ordinary files? Does
> | it support multiple swap devices now?
> 
> Just swapfiles and I don't think it supports multiple swap devices.
> (And to be honest, I don't see that as a very common use case either.
> Most machines where you want suspend are laptops, and those generally
> only hold one drive.)

I can never understand why people keep saying hibernation is mostly a
laptop thing. It's just as useful for desktops; I guess it's just a
mindset thing.

Anyway, re multiple swap devices, I wouldn't have thought so either, but
I have had requests for it, and it wasn't hard to do. Then again, maybe
I just get all the interesting usage cases :) I have people using
Suspend2 with multiple swap devices with the same priority (stripping,
sp?), various methods of encryption, in kiosk situations (the same image
can be used over and over because the storage isn't written to) and
more.

Regards,

Nigel