README.pybootchart
1 PYBOOTCHARTGUI
2 ----------------
3
4pybootchartgui is a tool (now included as part of bootchart2) for
5visualization and analysis of the GNU/Linux boot process. It renders
6the output of the boot-logger tool bootchart (see
7http://www.bootchart.org/) to either the screen or files of various
8formats. Bootchart collects information about the processes, their
9dependencies, and resource consumption during boot of a GNU/Linux
10system. The pybootchartgui tools visualizes the process tree and
11overall resource utilization.
12
13pybootchartgui is a port of the visualization part of bootchart from
14Java to Python and Cairo.
15
16Adapted from the bootchart-documentation:
17
18 The CPU and disk statistics are used to render stacked area and line
19 charts. The process information is used to create a Gantt chart
20 showing process dependency, states and CPU usage.
21
22 A typical boot sequence consists of several hundred processes. Since
23 it is difficult to visualize such amount of data in a comprehensible
24 way, tree pruning is utilized. Idle background processes and
25 short-lived processes are removed. Similar processes running in
26 parallel are also merged together.
27
28 Finally, the performance and dependency charts are rendered as a
29 single image to either the screen or in PNG, PDF or SVG format.
30
31
32To get help for pybootchartgui, run
33
34$ pybootchartgui --help
35
36This code was originally hosted at:
37 http://code.google.com/p/pybootchartgui/
38