A power consumption and power management diagnosis tool.
powertop [ options ]
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.
--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.
--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.
--help
show the help message.
--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.
--iteration[=iterations]
number of times to run each test.
--quiet
suppress stderr output.
--time[=seconds]
generate a report for a specified number of seconds.
--version
print version information and exit.
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
Send bug reports to <[email protected]>
The program is more fully described at https://01.org/powertop
powertop was written by Arjan van de Ven <[email protected]>, and is currently maintained by Chris E Ferron <[email protected]>.