NAME
cpupower frequency-info - Utility to retrieve cpufreq kernel informa‐
tion
SYNTAX
cpupower [ -c cpulist ] frequency-info [options]
DESCRIPTION
A small tool which prints out cpufreq information helpful to developers
and interested users.
OPTIONS
-e debug
Prints out debug information.
-f freq
Get frequency the CPU currently runs at, according to the
cpufreq core.
-w hwfreq
Get frequency the CPU currently runs at, by reading it from
hardware (only available to root).
-l hwlimits
Determine the minimum and maximum CPU frequency allowed.
-d driver
Determines the used cpufreq kernel driver.
-p policy
Gets the currently used cpufreq policy.
-g governors
Determines available cpufreq governors.
-a related-cpus
Determines which CPUs run at the same hardware frequency.
-a affected-cpus
Determines which CPUs need to have their frequency coordinated
by software.
-s stats
Shows cpufreq statistics if available.
-y latency
Determines the maximum latency on CPU frequency changes.
-o proc
Prints out information like provided by the /proc/cpufreq inter‐
face in 2.4. and early 2.6. kernels.
-m human
human-readable output for the -f, -w, -s and -y parameters.
-n no-rounding
Output frequencies and latencies without rounding off values.
REMARKS
By default only values of core zero are displayed. How to display set‐
tings of other cores is described in the cpupower(1) manpage in the
cpu option section.
You can't specify more than one of the output specific options -o -e -a
-g -p -d -l -w -f -y.
You also can't specify the -o option combined with the -c option.
FILES
/sys/devices/system/cpu/cpu*/cpufreq/
/proc/cpufreq (deprecated)
/proc/sys/cpu/ (deprecated)
AUTHORS
Dominik Brodowski - author
Mattia Dongili - first autolibtoolization
SEE ALSO
cpupower-frequency-set(1), cpupower(1)
0.1 CPUPOWER-FREQUENCY-INFO(1)