Ciao ho installato le utility per cpufreq, e riesco a modificare il
governor della cpu, ma ad ogni ripartenza... ritorna ad essere
performance il ...
http://technowizah.com/2007/01/debian-how-to-cpu-frequency-management.html
RIDURRE CONSUMO CPU PER LAPTOP con batteria
identificare il processore cat /proc/cpuinfo
sudo modprobe p4_clockmod
sudo modprobe cpufreq_powersave
echo powersave | sudo tee /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo p4_clockmod | sudo tee -a /etc/modules
echo cpufreq_powersave | sudo tee -a /etc/modules
togliere cancelletto a:edit the file /etc/sysfs.conf
devices/system/cpu/cpu0/cpufreq/scaling_governor = powersave
performance,cpufreq_performance
powersave, cpufreq_powersave
ondemand, cpufreq_ondemand
conservative, ideal for laptops) : cpufreq_conservative
wmacpi& il comando per visualizzare lo stato della batteria.
Ho eseguito questi comandi e effettivamente
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: p4-clockmod
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.00 ms.
hardware limits: 200 MHz - 1.60 GHz
available frequency steps: 200 MHz, 400 MHz, 600 MHz, 800 MHz, 1000 MHz, 1.20
GHz, 1.40 GHz, 1.60 GHz
available cpufreq governors: powersave, userspace, conservative, ondemand,
performance
current policy: frequency should be within 200 MHz and 1.60 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 200 MHz.
cpufreq stats: 200 MHz:100.00%, 400 MHz:0.00%, 600 MHz:0.00%, 800 MHz:0.00%,
1000 MHz:0.00%, 1.20 GHz:0.00%, 1.40 GHz:0.00%, 1.60 GHz:0.00% (1)
Funziona perchè setta powersave come governor.
Ma evidentemente ho saltato qualcosa
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