kernel 2.6.22-rc5-hrt1 - power consumption is still high

Török Edvin edwintorok at gmail.com
Mon Jun 25 04:36:23 PDT 2007


On 6/25/07, Marc Deop i Argemí <damnshock at gmail.com> wrote:
> I can't even get close to that! My lowest power consumption has been 10,8 with
> the brightness at 0 level and practically idleing! I have even disabled one
> of the cores...
>

Disabling a core actually increased power consumption. My guess is
that the core isn't really switched off, its just that no task gets
scheduled on it.
I see this comment in kernel/smpboot.c:__cpu_disable
/* Perhaps use cpufreq to drop frequency, but that could go into generic code.*/

--Edwin




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