POWERTOP(8)                  System Administration                 POWERTOP(8)

NAME
       powertop - a power consumption and power management diagnosis tool.

SYNOPSIS
       powertop [options]

DESCRIPTION
       powertop is a program that helps to diagnose various issues with power
       consumption and power management.  It also has an interactive mode
       allowing one to experiment with various power management settings.
       When invoking powertop without arguments powertop starts in interactive
       mode.

OPTIONS
       --auto-tune
              Set all tunable options to their good setting without
              interaction.

       -c, --calibrate
              Runs powertop in calibration mode.  When running on battery,
              powertop can track power consumption as well as system activity.
              When there are enough measurements, powertop can start to report
              power estimates.  One can get more accurate estimates by using
              this option to enable a calibration cycle.  This will cycle
              through various display levels and USB device activities and
              workloads.

       -C, --csv[=filename]
              Generate a CSV report.  If a filename is not specified then the
              default name powertop.csv is used.  The CSV report can be used
              for reporting and data analysis.

       --debug
              Run in debug mode.

       --extech=devnode
              Use the Extech Power Analyzer for measurements.  This allows one
              to specify the serial device node of the serial to USB adaptor
              connecting to the Extech Power Analyzer, for example
              /dev/ttyUSB0.

       -r, --html[=filename]
              Generate an HTML report.  If a filename is not specified then
              the default name powertop.html is used.  The HTML report can be
              sent to others to help diagnose power issues.

       -i, --iteration[=iterations]
              Number of times to run each test.

       -q, --quiet
              Suppress stderr output.

       -t, --time[=seconds]
              Generate a report for a specified number of seconds.

       -w, --workload[=workload]
              Execute workload file as a part of calibration before making a
              report.

       -V, --version
              Print version information and exit.

       -h, --help
              Show the help message and exit.

COMMANDS
       In interactive mode, the following key bindings are available:

              Tab                    Show next tab
              BackTab                Show previous tab
              Right Arrow            Scroll to the right
              Left Arrow             Scroll to the left
              Up Arrow, PageUp       Scroll up or select previous item
              Down Arrow, PageDown   Scroll down or select next item
              Space, Return          Activate current item
              s                      Set refresh timeout
              r                      Refresh window
              q, Ctrl-C, Escape      Exit powertop

BUGS
       Send bug reports to <powertop@lists.01.org>

SEE ALSO
       The program is more fully described at <https://01.org/powertop>

AUTHOR
       powertop was written by Arjan van de Ven <arjan@linux.intel.com>, and
       is currently maintained by Chris E Ferron <chris.e.ferron@linux.intel.
       com>.

powertop manual                   2014-08-02                       POWERTOP(8)