ça dépend du processeur:
[code]emeraude:~$ aptitude show cpudyn cpufreqd powernowd
Paquet : cpudyn
État: non installé (restent les fichiers de configuration)
Version : 1.0-2
Priorité : optionnel
Section : admin
Responsable : Celso González celso@bulma.net
Taille décompressée : 123k
Dépend: libc6 (>= 2.3.2.ds1-4)
Est en conflit: cpufreqd, powernowd
Description : CPU dynamic frequency control for processors with scaling
cpudyn controls the speed in Intel SpeedStep, Pentium 4 Mobile, AMD Powernow, PowerPC, Crusoe LongRun machines with the cpufreq compiled in the kernel,
or with machines that support ACPI throtling. It saves battery, lowers temperature, and can put the computer disks in standby mode if a given period has
passed without any I/O operation. It works well even with journaled file systems such as Ext3, XFS, or ReiserFS. Even supports the new interface for
kernels 2.6.x
Marqueurs: admin::boot, admin::hardware, hardware::laptop, hardware::power:acpi, hardware::power:apm, interface::daemon, role::sw:utility,
use::configuring
Paquet : cpufreqd
État: non installé
Version : 2.0.0-1
Priorité : optionnel
Section : admin
Responsable : Mattia Dongili malattia@debian.org
Taille décompressée : 258k
Dépend: debconf (>= 0.5) | debconf-2.0, libc6 (>= 2.3.5-1), libcpufreq0, libsensors3 (>= 1:2.9.2), lsb-base (>= 3.0)
Suggère: cpufrequtils
Est en conflit: cpudyn, powernowd
Description : fully configurable daemon for dynamic frequency and voltage scaling
cpufreqd is meant to be a replacement of the speedstep applet you can find on some other OS, it monitors the system status and selects the most
appropriate CPU level. It is fully configurable and easily extensible through the many available plug-ins (more to come). Despite its name it can be
used to control also the NForce2-Atxp1 voltage regulator and the core and memory clock for NVidia cards (see README.Debian).
You need a CPUFreq driver and either APM, ACPI (a recent version) or PMU enabled in your kernel in order for this daemon to work.
Homepage: http://sourceforge.net/projects/cpufreqd
Marqueurs: admin::boot, admin::hardware, hardware::laptop, hardware::power:acpi, hardware::power:apm, interface::daemon, role::sw:utility,
use::configuring
Paquet : powernowd
État: non installé
Version : 0.96-2
Priorité : optionnel
Section : admin
Responsable : Bdale Garbee bdale@gag.com
Taille décompressée : 102k
Dépend: libc6 (>= 2.3.2.ds1-21)
Est en conflit: cpudyn, cpufreqd
Description : control cpu speed and voltage using 2.6 kernel interface
This simple client controls CPU speed and voltage using the sysfs interface to the CPUFreq driver in v2.6 Linux kernels. It does not depend on APM or
ACPI, and it doesn’t try to do anything other than control the CPU.
The name is somewhat misleading, as any CPUfreq capable processor will work, not just those from AMD. However, it works better on CPUs that support more
than two speed steps, like those with AMD’s PowerNow! or Intel’s Pentium M series.
This daemon is less complicated than cpufreqd or cpudyn, at the cost of absolutely depending on a 2.6 kernel with the userspace governor and sysfs
support enabled.
Marqueurs: admin::power-management, interface::daemon, role::sw:server, use::configuring
[/code]