summaryrefslogtreecommitdiff
path: root/man/systemd-bootchart.xml
diff options
context:
space:
mode:
Diffstat (limited to 'man/systemd-bootchart.xml')
-rw-r--r--man/systemd-bootchart.xml117
1 files changed, 117 insertions, 0 deletions
diff --git a/man/systemd-bootchart.xml b/man/systemd-bootchart.xml
new file mode 100644
index 0000000000..4d53824d46
--- /dev/null
+++ b/man/systemd-bootchart.xml
@@ -0,0 +1,117 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Intel Corporation
+
+ Authors:
+ Auke Kok <auke-jan.h.kok@intel.com>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="systemd-bootchart">
+ <refentryinfo>
+ <title>systemd-bootchart</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Auke</firstname>
+ <surname>Kok</surname>
+ <email>auke-jan.h.kok@intel.com</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>systemd-bootchart</refentrytitle>
+ <manvolnum>1</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>systemd-bootchart</refname>
+ <refpurpose>Boot performance analysis graphing tool</refpurpose>
+ </refnamediv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>Systemd-bootchart is an boot time analysis tool. It represents
+ various aspects of the system as graph elements. These graph
+ elements allow the user to determine resource usage, efficiency
+ and performance issues.</para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Invocation</title>
+
+ <para>systemd-bootchart can be invoked in several different ways:</para>
+
+ <variablelist class='bootchart-invocation'>
+
+ <varlistentry>
+ <title>Kernel invocation</title>
+ <listitem><para>The kernel can invoke systemd-bootchart
+ instead of the init process. In itself, systemd-bootchart
+ will invoke <filename>/sbin/init</filename> if invoked in
+ this matter.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <title>Started as a standalone program</title>
+ <listitem><para>One can execute systemd-bootchart as
+ normal application from the commandline. In this mode
+ it is highly recommended to pass the "-r" flag in order
+ to not graph the time elapsed since boot and before
+ systemd-bootchart was started, as it may result in
+ extremely large graphs.
+ </para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <para>Please read systemd-bootchart --help or the bootchart.conf manual
+ page for information about the various options that influence how
+ systemd-bootchart operates.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Output</title>
+
+ <para>Systemd-bootchart generates SVG graphs. In order to render these
+ on a graphica display any SVG capable viewer can be used. It should be
+ noted that the SVG render engines in most browsers (including Chrome
+ and Firefox) are many times faster than dedicated graphical applications
+ like Gimp and Inkscape. Just point your browser at "file:///var/log"!
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>bootchart.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>