[Lvlug] 16 seconds from power up to operational system!!!

[Michael Gossett]

Is it really worth it to calculate out?

1KWh is about 0.11 cents...

On Fri, Aug 21, 2009 at 1:27 PM, Tom Garland <tom.garland at gmail.com> wrote:

>  JR Namida wrote:
> >
> > --- On Thu, 8/20/09, Tom Garland <tom.garland at gmail.com> wrote:
> >
> >> From: Tom Garland <tom.garland at gmail.com>
> >> Subject: [Lvlug] 16 seconds from power up to operational system!!!
> >> To: "The Las Vegas Linux Users Group" <lvlug at lvlug.org>
> >> Date: Thursday, August 20, 2009, 10:43 PM
> >> When playing around with 'Suspend'
> >> and 'Hibernate' I noticed
> >> that both them powered down my desktop system. :-(
> >>
> >> After the power on button was pressed, it took a full boot
> >> up sequence for an operational system when 'Hibernate' was
> >> used.
> >>
> >> But when I powered up after using 'Suspend' it took 14
> >> seconds
> >> to get power to the display and 2 seconds later I had my
> >> full
> >> system back the same as when I did the 'Suspend'. The only
> >> issue was that Xchat had disconnected and just doing a
> >> re-connect brought it back fine. Everything else was as I
> >> left it.
> >>
> >> So unless I need to do a real reboot to get a updated
> >> kernel
> >> I'm sticking with doing a suspend from now on. I know that
> >> work is being done to dynamically load a new kernel. But
> >> until then I'll re-boot only when I'm updating a kernel.
> >>
> >> Tom
> >> --
> >> 'Intellectual Property'. Intellect is virtual. Property is
> >> real.
> >> 'Virtual Reality' Duh!���Have Fun and Be
> >> Helpful - Toga
> >> #LVLUG on IRC.FREENODE.NET <http://irc.freenode.net/> for online chat.
> >> _______________________________________________
> >> Sent via the Lvlug mailing list Lvlug at lvlug.org
> >
> > * * *
> > Tom,
> >
> > How much power is the system consuming "measured at the wall plug" in
> suspend?  Wondering if 14 seconds in comparison to starting your system
> several hours later is economical?
> >
> > JR
>
> Well of course you made me power down to get the measurements
> you asked for! ;-)
>
> Pulled the plug to add my KillaWatt meter and got:
> Full pwr down -  10 Watt        5 VA (Volt Amp, true power use)
> Full pwr up   - 195 Watt(avg) 120 VA
> Suspended     -  16 Watt        8 VA
> (Text above only lines up if you use fixed fonts.)
>
> So I'm adding 3 watts true power usage compared with full
> power down and suspend mode. Of course that is not counting
> all my other devices. Your mileage will very on how you handle
> a power down.
>
> I average having my system up 16 hours a day, even when I went
> out for an hour or two because of the reboot PITA factor. Now
> I'm going to use suspend when I leave my system for a hour or
> more.
>
> So it costs me 24 watt hours a night to use suspend, but I save
> 112 watts/hour when I leave my computer in suspend compared
> to just leaving my system running. Using 168 watt hours a
> week with suspend at night I save money when I'm away from
> my system for 1.5 hours a week (168/112) using suspend. I'm
> sure I get more savings then this because my monitor goes
> into standby also for both power down and suspend, 60W/2W.
> 182/170=1.07 hours counting the monitor.
>
> I also get the joy of a quick return of my system as I left it.
>
> Tom
> --
> 'Intellectual Property'. Intellect is virtual. Property is real.
> 'Virtual Reality' Duh!   Have Fun and Be Helpful - Toga
> #LVLUG on IRC.FREENODE.NET <http://irc.freenode.net/> for online chat.
> _______________________________________________
> Sent via the Lvlug mailing list Lvlug at lvlug.org
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