83fdc450aa
Bootchart is renamed to 'systemd-bootchart' and installed as /usr/lib/systemd/systemd-bootchart. The configuration file will reside in /etc/systemd/bootchart.conf.
118 lines
4.7 KiB
XML
118 lines
4.7 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Intel Corporation
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Authors:
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Auke Kok <auke-jan.h.kok@intel.com>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-bootchart">
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<refentryinfo>
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<title>systemd-bootchart</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Auke</firstname>
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<surname>Kok</surname>
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<email>auke-jan.h.kok@intel.com</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-bootchart</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-bootchart</refname>
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<refpurpose>Boot performance analysis graphing tool</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>Systemd-bootchart is an boot time analysis tool. It represents
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various aspects of the system as graph elements. These graph
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elements allow the user to determine resource usage, efficiency
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and performance issues.</para>
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</refsect1>
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<refsect1>
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<title>Invocation</title>
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<para>systemd-bootchart can be invoked in several different ways:</para>
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<variablelist class='bootchart-invocation'>
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<varlistentry>
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<title>Kernel invocation</title>
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<listitem><para>The kernel can invoke systemd-bootchart
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instead of the init process. In itself, systemd-bootchart
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will invoke <filename>/sbin/init</filename> if invoked in
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this matter.</para></listitem>
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</varlistentry>
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<varlistentry>
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<title>Started as a standalone program</title>
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<listitem><para>One can execute systemd-bootchart as
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normal application from the commandline. In this mode
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it is highly recommended to pass the "-r" flag in order
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to not graph the time elapsed since boot and before
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systemd-bootchart was started, as it may result in
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extremely large graphs.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>Please read systemd-bootchart --help or the bootchart.conf manual
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page for information about the various options that influence how
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systemd-bootchart operates.</para>
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</refsect1>
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<refsect1>
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<title>Output</title>
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<para>Systemd-bootchart generates SVG graphs. In order to render these
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on a graphica display any SVG capable viewer can be used. It should be
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noted that the SVG render engines in most browsers (including Chrome
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and Firefox) are many times faster than dedicated graphical applications
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like Gimp and Inkscape. Just point your browser at "file:///var/log"!
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>bootchart.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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