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 al-
lowing 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 interac-
tion.
-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)
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