On Wed, 20 Apr 2011, Gwenhael Le Moine wrote:
>
>
> What? No, suspend-to-ram puts the computer in a deep sleep with the
> ram and little else powered, no data is moved. Hibernate writes the
> ram to disk and then power-off completly, next boot is a cold boot and
> at some point the presence of hibernated data is detected and loaded.
>
Oops, my bad! Somehow I was talking about suspend-to-ram and thinking
about hybrid-sleep.
> >>
> >> Personally I've stopped hubernating years ago, suspend-to-ram is
> >> nearly instant and has never failed me (and my wife is constantly
> >> stealing my laptop because hers take ages to get out of hibernation :P
> >> )
> >>
> >> Gwenhael
> >>
> >
> > Suspend-to-ram still consumes energy, man. Hibernation is for greener
> > planet ;-).
>
> My computers are almost always on anyway, the only time they sleep is
> when they're moving from one point to another in my bag, hibernation
> is for when their insides need dusting, reboot is for kernel upgrades,
> halt is almost unheard of (hardware change.) The last 3 actions
> involve having to type root's password :D
>
Well, with sudo's `sudoers' you don't have to type your password with
the last 3 actions :-).
>
> How much energy does writing 2 or 3Gio to disk + a cold boot +
> restoring the 2 or 3Gio consume? From which amount of time does it
> make more sense to hibernate then to suspend-to-ram? I don't have the
> tooling necessary to mesure this unfortunately but it's an interesting
> question.
>
Another subject for Hanoi #hackfest ? ;-)
Warmest regards,
Yang
--
Dương "Yang" Hà Nguyễn
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