Re: work presentation using an Apple IIe

[BLuRry <brendan.robert@gmail.com>]

On Friday, May 18, 2012 10:55:28 AM UTC-5, Vince Weaver wrote:
> On Friday, May 18, 2012 11:13:32 AM UTC-4, BLuRry wrote:
> 
> > Interesting.  According to PowerTop, my Toshiba laptop (pre sandy-bridge Core i7, running Ubuntu 12.04 64-bit) idles at 9.5 watts, assuming dim display and deactivated WiFi) and only jumps up to 15 watts when in active use.  Granted, it gets into the 20s if I open something that hammers on the CPU/GPU.  Not as pretty as a macbook, but I have more than enough money left over to wipe my tears of anguish with 100-dollar bills and still have spent less money than I would for a macbook.
> > 
> > This makes me wonder: Is PowerTop inaccurate compared to a real physical measurement tool?
> 
> The macbook pro is 32W with backlight on full, and wireless and wired ethernet enabled.  X11 is not running though.
> 
> I am measuring this with a WattsUpPro power meter, so it also includes any AC/DC conversion inefficiencies.  I'm not sure exactly sure how powertop measures power; I'm guessing through ACPI somehow?  The macbook doesn't report power if I run powertop on it.
> 
> Vince

I think that powertop uses ACPI.  Also, try running it as root -- it doesn't do much in userland on its own. :-D

-B