NAME

       likwid-powermeter - A tool to print power and clocking information on Intel CPUs

SYNOPSIS

       likwid-powermeter [-vhip] [-c <socket_list>] [-s <duration_in_seconds>] [-M <access_mode>]

DESCRIPTION

       likwid-powermeter  is  a  command  line  application  to get the energy comsumption of Intel RAPL capable
       processors.  It also prints information about TDP  and  Turbo  Mode  steps  supported.   The  Turbo  Mode
       information  works on all Turbo mode enabled Intel processors. The tool can be either used in stethoscope
       mode for a specified duration or as a wrapper to your application measuring your complete run. RAPL works
       on a per package (socket) base.  Please note that the RAPL counters are also accessible as normal  events
       within likwid-perfctr.

OPTIONS

       -v     prints version information to standard output, then exits.

       -h     prints a help message to standard output, then exits.

       -c  <socket_list>
              set on which sockets the RAPL interface is accessed. comma-separated list of socket IDs

       -p     prints  out  information  about  dynamic  clocks  and CPI information on the socket measured. Uses
              likwid-perfctr internally.

       -i     prints out information TDP and Turbo mode steps

       -M  <access_mode>
              set the access method. 0 for direct access to MSR/RAPL registers, 1 for using the accessDaemon.

       -s  <duration_in_seconds>
              measure the power for a specific time (default 2s)

AUTHOR

       Written by Jan Treibig <jan.treibig@gmail.com>.

BUGS

       Report Bugs on <http://code.google.com/p/likwid/issues/list>.

SEE ALSO

       likwid-topology(1), likwid-perfctr(1), likwid-pin(1), likwid-features(1), likwid-setFrequencies(1)

likwid-3                                            12.2.2014                               LIKWID-POWERMETER(1)