RE: cpufreqd: ondemand
From: Florian Dorpmueller (dorpmueller_at_hotmail.com)
Date: 09/29/05
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To: debian-user@lists.debian.org Date: Thu, 29 Sep 2005 14:20:50 +0000
>Hello,
>
>I have an /etc/cpufreqd.conf that makes
>/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq go to 600000
>on Mandriva if the system is idle.
>However the same configuration on Debian makes it go to 1500000 that
>is full speed if the system is idle.
>Kernel is 2.6.8-2-686.
>Why does the same cpufreqd configuration behave differently on
>Debian than on Mandriva?
>What is required on Debian to make it go to the minimum frequency if
>the system is idle?
>
>The config file looks like:
>
>....
># this is a comment
>#
># you need: 1 [General] section,
># 1 or more [Profile] sections
># 1 or more [Rule] sections
>#
># a section ends at the first blank line
>#
># [Rule] sample:
># [Rule]
># name=sample_rule
># ac=on # (on/off)
># battery_interval=0-10
># cpu_interval=30-60
># programs=xine,mplayer
># profile=sample_profile
>#
># [Profile] sample:
># [Profile]
># name=sample_profile
># minfreq=10%
># maxfreq=100%
># policy=performance
>#
># see CPUFREQD.CONF(5) manpage for a complete reference
>
>[General]
>pidfile=/var/run/cpufreqd.pid
>poll_interval=2
>pm_type=acpi #(acpi, apm or pmu)
># Uncomment the following line to enable ACPI workaround (see
>cpufreqd.conf(5))
># acpi_workaround=1
>verbosity=4 #(if you want a minimal logging set to 5)
>
>[Profile]
>name=old_hi_boost
>minfreq=66%
>maxfreq=100%
>policy=performance
>
>[Profile]
>name=hi_boost
>minfreq=0%
>maxfreq=100%
>policy=ondemand
>
>[Profile]
>name=medium_boost
>minfreq=33%
>maxfreq=66%
>policy=performance
>
>[Profile]
>name=lo_boost
>minfreq=0%
>maxfreq=33%
>policy=performance
>
>[Profile]
>name=lo_power
>minfreq=0%
>maxfreq=33%
>policy=powersave
>
># conservative mode when not AC
>[Rule]
>name=conservative
>ac=off # (on/off)
>battery_interval=0-100
>cpu_interval=0-40
>cpu_nice_scale=1.5
>delay_cycles=3
>profile=lo_boost
>
># need some power
>[Rule]
>name=lo_cpu_boost
>ac=off # (on/off)
>battery_interval=0-100
>cpu_interval=30-80
>profile=medium_boost
>
># need big power (not if battery very low)
>[Rule]
>name=hi_cpu_boost
>ac=off # (on/off)
>battery_interval=50-100
>cpu_interval=70-100
>profile=medium_boost
>
># full power when AC
>[Rule]
>name=AC_on
>ac=on # (on/off)
>profile=hi_boost
>
># full power when watching DVDs and not AC:
># this is the last rule and takes less
># precedence with respect to the others
>[Rule]
>name=dvd_watching
>ac=off # (on/off)
>battery_interval=0-100
>programs=xine,mplayer,avidemux
>cpu_interval=0-100
>profile=hi_boost
>....
If you are able to understand german, I can recommend to have a look at
http://www.debianforum.de/wiki/?page=P4DynamischTakten. Furthermore I
propose to use the ondemand governor.
Florian
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- Previous message: Joseph H. Fry: "Re: compiling non-initrd 2.6 kernel?"
- In reply to: Hanspeter Roth: "cpufreqd: ondemand"
- Next in thread: Hanspeter Roth: "Re: cpufreqd: ondemand"
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