0ad3f75432
Split the output chart into multiple ones to make it more readable, it only works with "-o path", which means that it doesn't work if the user doesn't want to save the chart to the disk. For example: $ ./pybootchartgui.py /path/to/tmp/buildstats/core-image-sato-qemux86/201205301810/ -f svg -s 5 -o /tmp/ bootchart written to /tmp/bootchart_1.svg bootchart written to /tmp/bootchart_2.svg bootchart written to /tmp/bootchart_3.svg bootchart written to /tmp/bootchart_4.svg bootchart written to /tmp/bootchart_5.svg [YOCTO #2403] (From OE-Core rev: 04a34899e1c15a70babd97a3a59ccb9f8af05bad) Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> |
||
|---|---|---|
| .. | ||
| pybootchartgui | ||
| AUTHORS | ||
| COPYING | ||
| pybootchartgui.py | ||
| README | ||
PYBOOTCHARTGUI
----------------
pybootchartgui is a tool for visualization and analysis of the GNU/Linux boot process. It renders the output of the boot-logger tool bootchart (see http://www.bootchart.org/) to either the screen or files of various formats. Bootchart collects information about the processes, their dependencies, and resource consumption during boot of a GNU/Linux system. The pybootchartgui tools visualizes the process tree and overall resource utilization.
pybootchartgui is a port of the visualization part of bootchart from Java to Python and Cairo.
Adapted from the bootchart-documentation:
The CPU and disk statistics are used to render stacked area and line charts. The process information is used to create a Gantt chart showing process dependency, states and CPU usage.
A typical boot sequence consists of several hundred processes. Since it is difficult to visualize such amount of data in a comprehensible way, tree pruning is utilized. Idle background processes and short-lived processes are removed. Similar processes running in parallel are also merged together.
Finally, the performance and dependency charts are rendered as a single image to either the screen or in PNG, PDF or SVG format.
To get help for pybootchartgui, run
$ pybootchartgui --help