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[Steve]

On Thu, 14 May 2009 19:57:37 +0200
Nils Kassube <kassube at gmx.net> wrote:

> Goh Lip wrote:
> > I have 2 GB RAM, had 7.5 GB swap (yes, some time ago partitioned my
> > disk, thought it safer than sorry, still no regrets, have more disk
> > space than I could use).
> > Jaunty 64
> > KDE 4.2.3
> > Linux 2.6.28-11
> >
> > Noticed at system monitor (always running), that my swap usage is
> > ALWAYS zero, whatever I do, Gimp, Firefox,  Kaffeine all running.
> > Checked /etc/fstab to make sure swap is there, enabled and on,
> > (swapon -a); even when flash 10 freezed temporarily firefox, swap is
> > still zero. Is it because swap is not needed? 
> 
> Yes, you have a lot more RAM than necessary to run those few apps. Same 
> here BTW.
> 
> > Next, suspend to disk, (now I know the distinction from suspend to
> > RAM, thanks). Are they useful only for laptops, where battery
> > conservation is desired? What purpose would it serve for desktops?
> 
> My desktop doesn't support suspend to RAM but suspend to disk. If I want 
> to suspend I only have this one option.
> 
> > Indeed, if we have suspend to RAM in laptops, what advantage would
> > suspend to disk have? Won't battery consumption be lower if disk is
> > actually off?
> 
> Suspend to disk means that the entire machine is switched off (including 
> disk) after the memory contents is written to disk. OTOH, suspend to RAM 
> means that there is still some power needed to keep the RAM alive.
> 
> 
That’s what I suspected.  So what does 'save session for future logins' do, is it the same as suspend to disk?

-- 
Steve <Yorvik.Ubunto at GoogleMail.com>