On Monday, 25 September 2006 10:40, Pavel Machek wrote:
> Hi!
>
> > > > > If you want to do it _right_, write timing info onto disk, then read
> > > > > it from there. That will not slow the user down, while still telling
> > > > > them nice statistics when resume is done. Hmmm?
> > > >
> > > > where? there's no fs mounted. Is there a place to put it in the swap
> > > > that won't interfere with anything even after resume? I'll have to look
> > > > at the disk format for swap.
> > >
> > > Just place it into swap header. uswsusp has to rewrite it with
> > > "original" swap header, so just do it in two phases.
> >
> > But please remember that the swap header consists only of one page. ;-)
> >
> > Besides, it gets overwritten before the atomic restore, so it would be
> > quite tricky to transfer the benchmark data to the "restored" suspend.
>
> I do not see the problems:
>
> before suspend, swap header says "this is swapspace"
> suspend image is written, header says "this is image, suspend time was
> 5 seconds"
> then comes powerdown, powerup, reading image, and its overwrite with
> "this is swapspace"
> then comes atomic restore
>
> So let's do:
>
> before suspend, swap header says "this is swapspace"
> suspend image is written, header says "this is image, suspend time was
> 5 seconds"
> then comes powerdown, powerup, reading image, and its overwrite with
> "this is almost swapspace, suspend time was 5 seconds, resume time was
> 3 seconds"
> then comes atomic restore
and now it's _expected_ to be swap space.
Greetings,
Rafael
--
You never change things by fighting the existing reality.
R. Buckminster Fuller
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