cpupower-frequency-info(1) - phpMan

CPUPOWER-FREQUENCY-INFO(1)               cpupower Manual               CPUPOWER-FREQUENCY-INFO(1)



NAME
       cpupower-frequency-info - Utility to retrieve cpufreq kernel information

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  avail-
              able 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 interface 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 settings 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 <linux AT brodo.de> - author
       Mattia Dongili<malattia AT gmail.com> - first autolibtoolization

SEE ALSO
       cpupower-frequency-set(1), cpupower(1)



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