Copyright 2002-2005, George Staikos (firstname.lastname@example.org)
Mattia Dongili (email@example.com)
Rene Rebe (firstname.lastname@example.org)
This file may be used subject to the terms and conditions of the
GNU General Public License Version 2, or any later version
at your option, as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or F...
(The comments found at the beginning of the groff file "man8/cpufreqd.8".)
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
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
- /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 correct.
kernel cpu frequency interface
old deprecated kernel cpu frequency interface (please avoid it)
kernel power management interface (ACPI)
kernel power management interface (APM)
kernel power management interface (PMU). (Not yet implemented in cpufreqd-2.0)
Multiple CPUs are not considered separately thus the same policy is set in every
Battery can only be specified in percent, not in minutes remaining.
- George Staikos <email@example.com>
- Mattia Dongili <firstname.lastname@example.org>
- Rene Rebe <email@example.com>