powertop(8)

1POWERTOP(8)                  System Administration                 POWERTOP(8)
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NAME

6       powertop - a power consumption and power management diagnosis tool.
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SYNOPSIS

9       powertop [options]
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DESCRIPTION

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

19       --auto-tune
20              Set  all  tunable options to their good setting without interac‐
21              tion.
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23       -c, --calibrate
24              Runs powertop in calibration mode.   When  running  on  battery,
25              powertop can track power consumption as well as system activity.
26              When there are enough measurements, powertop can start to report
27              power  estimates.   One can get more accurate estimates by using
28              this option to enable a  calibration  cycle.   This  will  cycle
29              through  various  display  levels  and USB device activities and
30              workloads.
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32       -C[filename], --csv[=filename]
33              Generate a CSV report.  If a filename is not specified then  the
34              default  name  powertop.csv  is  used. If a filename is "-" then
35              STDOUT is used. The CSV report can be  used  for  reporting  and
36              data analysis.
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38       -d[filename], --dump[=filename]
39              Generate a plain text report.  If a filename is not specified or
40              it is "-" then STDOUT is used.
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42       --debug
43              Run in debug mode.
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45       --extech=devnode
46              Use the Extech Power Analyzer for measurements.  This allows one
47              to  specify  the serial device node of the serial to USB adaptor
48              connecting  to  the   Extech   Power   Analyzer,   for   example
49              /dev/ttyUSB0.
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51       -r[filename], -h[filename], --html[=filename]
52              Generate  an  HTML  report.  If a filename is not specified then
53              the default name powertop.html is used. If  a  filename  is  "-"
54              then  STDOUT  is  used. The HTML report can be sent to others to
55              help diagnose power issues.
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57       -i, --iteration[=iterations]
58              Number of times to run each test.
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60       -q, --quiet
61              Suppress stderr output.
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63       -t, --time[=seconds]
64              Generate a report for a specified number of seconds.
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66       -w, --workload[=workload]
67              Execute workload file as a part of calibration before  making  a
68              report.
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70       -V, --version
71              Print version information and exit.
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73       -u, --help
74              Show the help message and exit.
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COMMANDS

77       In interactive mode, the following key bindings are available:
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79              Tab                    Show next tab
80              BackTab                Show previous tab
81              Right Arrow            Scroll to the right
82              Left Arrow             Scroll to the left
83              Up Arrow, PageUp       Scroll up or select previous item
84              Down Arrow, PageDown   Scroll down or select next item
85              Space, Return          Activate current item
86              s                      Set refresh timeout
87              r                      Refresh window
88              q, Ctrl-C, Escape      Exit powertop
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BUGS

91       Send bug reports to ⟨powertop@lists.01.org⟩
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AUTHOR

97       powertop  was  written by Arjan van de Ven ⟨arjan@linux.intel.com⟩, and
98       is currently maintained by Chris E Ferron  ⟨chris.e.ferron@linux.intel.
99       com⟩.
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103powertop manual                   2014-08-02                       POWERTOP(8)