powertop + /proc/timer_list?

[Andre Müller]

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Arjan van de Ven wrote:
> Németh Márton wrote:
>> Hi,
>>
>> my computer mostly wakes because of '<interrupt> : extra timer
>> interrupt". I killed all processes and removed the all the kernel
>> modules what I could. Then I checked the /proc/timer_list, it showed
>> two timer sources: pit and lapic.
> 
> the PIT has a maximum time it can wait of about 26ms or so, which means
> you will wake up 37 times per second just for "nothing". If you enable
> HPET this will be much longer..

So 37 wakeups is rock bottom for the pit timer?
I've been there :-)
Prolly the web page might mention this lower limit
for the "antique" chipsets (ICH-4 here).

Best,
Andre

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