[ltp] Re: this script controles on my t60 the cpufunctions i use

Evgeni Golov linux-thinkpad@linux-thinkpad.org
Thu, 17 Aug 2006 19:57:03 +0200


On Wed, 16 Aug 2006 15:02:29 +0200 Michael Olbrich
<michael.olbrich@gmx.net> wrote:

> On Wed, Aug 16, 2006 at 11:29:15AM +0100, Alfredo Matos wrote:
> > So this enables and disables the second core.
> > You do this for powersave reasons i presume. Do you have a notion
> > of the battery gain, i mean, how much more (in minutes) are you
> > able to squeeze out of the battery ?
> 
> I have a Z61m but I think the CPU is more or less the same.
> When switching from 2 CPUs at 1GHz (minimum frquency) to 1 CPU at 1GHz
> the average power consumption drops by 2W. How much that is in minutes
> depends on the rest of the system. For me that's about 30 minutes.

How do you check this?
cat /proc/acpi/battery/BAT0/state
shows me ~19W, with one and two cores enabled.


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