[Haifux] reading electric current registers on CPU

Mark Silberstein marks at cs.technion.ac.il
Mon Dec 28 17:27:31 MSK 2009


All of them are compiled as modules. The question is whether this kernel
version (  2.6.30.9-96.fc11.i686.PA )  supports this type of info

On Mon, Dec 28, 2009 at 2:29 PM, Sorana Fraier <sf10095 at gmail.com> wrote:

> there is a kernel parameter that sets lm_sensors. Is it enabled?
>
> check
>
> grep -i sensors /usr/src/linux/.config
>
>
> On Mon, Dec 28, 2009 at 1:56 PM, Mark Silberstein <marks at cs.technion.ac.il
> > wrote:
>
>> Friends, thanks for all the ideas - none have worked in the meantime.
>>
>> +mA query is nice, but still not  too helpful
>> +powertop doesn't have any output that shows CPU power other than for
>> laptops battery
>> +/proc/acpi does not expose the current /power registers..
>>
>> Any other ideas?
>>
>>
>> On Mon, Dec 28, 2009 at 12:47 PM, Maxim Kovgan <kovganm at gmail.com> wrote:
>>
>>> is analyzing:
>>> /proc/acpi/CPU0/power
>>> /proc/acpi/CPU1/power
>>> ...
>>> /proc/acpi/CPU${N}/power
>>>
>>> good for you ?
>>>
>>>
>>> On Mon, Dec 28, 2009 at 9:15 AM, Mark Silberstein <
>>> marks at cs.technion.ac.il> wrote:
>>>
>>>> Friends,
>>>>
>>>> I'm trying to find the way for the user-level program to read the
>>>> electric current sensor of a CPU to compute its  power consumption (given
>>>> vCore it should be easy). I'm trying to use lm_sensors, which actually
>>>> mention the support of  this kind of info, but I can't seem to have the
>>>> kernel module which exposes it to lm_sensors and does the trick.
>>>>
>>>> Googling is not that useful for the query "reading CPU current  register
>>>> "  brings up tons of info with "current" in the sense of momentarily, rather
>>>> than electric current. ...
>>>>
>>>> Any idea ?
>>>>
>>>> Mark
>>>>
>>>>
>>>> _______________________________________________
>>>> Haifux mailing list
>>>> Haifux at haifux.org
>>>> http://hamakor.org.il/cgi-bin/mailman/listinfo/haifux
>>>>
>>>>
>>>
>>>
>>> --
>>> Maxim Kovgan
>>>
>>
>>
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>>
>
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