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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 [email protected]

SEE ALSO

   The program is more fully described at https://01.org/powertop

AUTHOR

   powertop was written by Arjan van de Ven  [email protected],  and
   is  currently maintained by Chris E Ferron [email protected].
   com.



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