cpufreqd - intelligently monitor and manipulate CPU frequency
cpufreqd [-Dmhv] [-f filename] [-V verbosity]
is used to monitor the status of the system and adjust the
frequency of the CPU according to the user configuration. The behaviour of the
daemon is fully configurable. Logs are reported through syslogd.
- -D, --no-daemon
- stay in foreground (used to debug).
- -m, --manual
- start in manual mode.
- -f filename, --file=filename
- Specify the configuration file to read. The default is
- -h, --help
- Display command line help.
- -v, --version
- Display the version number of the daemon.
- -V, --verbosity
- verbosity level from 0 (less verbose) to 7 (most verbose).
Default verbosity is 4
- This lets cpufreqd perform a re-initialization. The
configuration file (default is /etc/cpufreqd.conf) will be re-read and
probes re-done. (Not yet implemented in cpufreqd-2.0)
- SIGINT, SIGTERM
- cpufreqd will terminate.
- /usr/sbin/cpufreqd -D
- Some ACPI implementations are very cpu-consuming when
reading the info file of
- system batteries. Cpufreqd implements a simple workaround
that avoids reading that file except on initialization or
reinitialization. This has the effect of needing to send an HUP signal if
inserting a new battery, otherwise battery measurement won't be
- kernel cpu frequency interface
- old deprecated kernel cpu frequency interface (please avoid
- kernel power management interface (ACPI)
- kernel power management interface (APM)
- kernel power management interface (PMU). (Not yet
implemented in cpufreqd-2.0)
- cpufreqd configuration file
Multiple CPUs are not considered separately thus the same policy is set in every
available CPU. Battery can only be specified in percent, not in minutes
- George Staikos <firstname.lastname@example.org>
- Mattia Dongili <email@example.com>
- Rene Rebe <firstname.lastname@example.org>