powertop - a power consumption and power management diagnosis
tool.
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.
- --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.
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 |