| Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | PYBOOTCHARTGUI |
| 2 | ---------------- |
| 3 | |
| 4 | pybootchartgui is a tool (now included as part of bootchart2) for |
| 5 | visualization and analysis of the GNU/Linux boot process. It renders |
| 6 | the output of the boot-logger tool bootchart (see |
| 7 | http://www.bootchart.org/) to either the screen or files of various |
| 8 | formats. Bootchart collects information about the processes, their |
| 9 | dependencies, and resource consumption during boot of a GNU/Linux |
| 10 | system. The pybootchartgui tools visualizes the process tree and |
| 11 | overall resource utilization. |
| 12 | |
| 13 | pybootchartgui is a port of the visualization part of bootchart from |
| 14 | Java to Python and Cairo. |
| 15 | |
| 16 | Adapted 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 | |
| 32 | To get help for pybootchartgui, run |
| 33 | |
| 34 | $ pybootchartgui --help |
| 35 | |
| 36 | This code was originally hosted at: |
| 37 | http://code.google.com/p/pybootchartgui/ |