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authorPeter Kjellerstedt <peter.kjellerstedt@axis.com>2013-11-15 18:08:50 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-11-18 12:44:06 +0000
commitd0e513d4371789d59bcb902497ca7c537a94c1f0 (patch)
tree1542d41042ac935aaaa9f6735170ffd8f9044c87 /scripts/pybootchartgui/README
parenta52c9b9a76371ac3f29b0355fea08b788eb2dd10 (diff)
downloadpoky-d0e513d4371789d59bcb902497ca7c537a94c1f0.tar.gz
pybootchartgui: Import pybootchartgui 0.14.5
This update the pybootchartgui code to the latest release from its new location at "https://github.com/mmeeks/bootchart". This only imports the relevant parts, and not all of bootchart2. (From OE-Core rev: 6f1568e54a7808b2ab568618fc5bb244249579f1) Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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1 PYBOOTCHARTGUI
2 ----------------
3
4pybootchartgui is a tool for visualization and analysis of the
5GNU/Linux boot process. It renders the output of the boot-logger tool
6bootchart (see http://www.bootchart.org/) to either the screen or
7files of various formats. Bootchart collects information about the
8processes, their dependencies, and resource consumption during boot of
9a GNU/Linux system. The pybootchartgui tools visualizes the process
10tree and overall resource utilization.
11
12pybootchartgui is a port of the visualization part of bootchart from
13Java to Python and Cairo.
14
15Adapted from the bootchart-documentation:
16
17 The CPU and disk statistics are used to render stacked area and line
18 charts. The process information is used to create a Gantt chart
19 showing process dependency, states and CPU usage.
20
21 A typical boot sequence consists of several hundred processes. Since
22 it is difficult to visualize such amount of data in a comprehensible
23 way, tree pruning is utilized. Idle background processes and
24 short-lived processes are removed. Similar processes running in
25 parallel are also merged together.
26
27 Finally, the performance and dependency charts are rendered as a
28 single image to either the screen or in PNG, PDF or SVG format.
29
30
31To get help for pybootchartgui, run
32
33$ pybootchartgui --help
34
35
36http://code.google.com/p/pybootchartgui/