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¶
- --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.
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>.
