Re: More than one battery

[Malte Thoma <thoma-iYtK5bfT9M8b1SvskN2V4Q@public.gmane.org>]

Daniel Thor Kristjansson wrote:

>I found the text below through some googling. The important thing is
>that ospmd is supposed to support acpi policies in the next version. I
>believe this means that you can hand a policy to ospmd and have it
>handle throttling for you, I doubt it would take cpu load into account.
>But I'm going to try to find who's working on that, the cpp files all
>just say "Intel" then find out if they are planning on putting a more
>complete policy support into the ospmd deamon, or could use a
>contribution. Throttling just based on thermal event might save your
>CPU, but won't save as much battery power as throttling the CPU when
>load is low. (I can easly half my battery draw by throttling and turning
>down the LCD, but I wouldn't do it without my hacked heatload
>unthrottling when the system load goes up.)
>  
>
Please send my a diff from the hacked heatload.
If I understand you right, you have included an

'auto-throttling-when-no-load'

I think this is worth to be included in the offical release, don't you?
We should include 'auto-performance-when-no-load' as welll, what's your 
opinion?


Greetings,

Malte





>Anyway, I'll keep you informed.
>
>-- Daniel
>
>  http://216.239.37.100/search?q=cache:pOZPEz5rV_8C:www.intel.com/technology/iapc/acpi/downloads/CHANGES.txt+ospmd+cpu+throttling&hl=en&ie=UTF-8
>
>The processor driver (acpi_processor.c) now fully supports ACPI
>2.0-based processor performance control (e.g. Intel(R) SpeedStep(TM)
>technology) Note that older laptops that only have the Intel "applet"
>interface are not supported through this.  The 'limit' and 'performance'
>interface (/proc) are fully functional.  [Note that basic policy for
>controlling performance state transitions will be included in the next
>version of ospmd.] The idle handler was modified to more aggressively
>use C2, and PIIX4 errata handling underwent a
>complete overhaul (big thanks to Dominik Brodowski).
>
>.
>
>  
>



-------------------------------------------------------
This SF.NET email is sponsored by:
SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
http://www.vasoftware.com