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==Using CPUspeed==
==Using CPUspeed==
Your MacMini supports multiple cpu frequences. Using multiple frequences can even reduce power consumption but without reducing your cpu power. The used frequence depends on the demanded processes. If you give the command
Your MacMini supports multiple cpu frequencies. Using multiple frequencies can even reduce power consumption but without reducing your cpu power. The used frequence depends on the demanded processes. If you give the command
# cat /proc/cpuinfo
# cat /proc/cpuinfo
you can see the actual used cpu frequence.
you can see the actual used cpu frequence.
The command
The command
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
ansers with 'centrino', which means that your MacMini would use the centrino driver.
ansers with 'centrino', which means that your MacMini would use the centrino driver.
#
You can see th possible cpu frequencies with the command
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_availaible_frequencies
My MacMini shows the following frequencies:
# 1833000 1667000 1500000 1333000 1000000
Using multiple cpu frequencies, you have to config your system as follows:
Edit the file /etc/cpuspeed.conf and uncomment the line with the driver
# DRIVER="centrino"
and save this file.
Edit the file /etc/lilo.conf and add the append command (after the 'linear' line)
# append="apm=off acpi=on"
save the file and type
# lilo
Last but not least config the servive db so that the cpuspeed service starts when booting your MacMini:
# db configuration setprop cpuspeed status enabled
Save the whole configuration and restart your server
# signal-event post-upgrade
# signal-event reboot
From now on your MacMini should use successful the cpuspeed service to swich between multiple cpu frequencies.
Have much fun with the energy efficient MacMini as your preferred SME home server platform !
Have much fun with the energy efficient MacMini as your preferred SME home server platform !