56ba3c78ae
man rules were repeating the same information in too many places, which was error prone. Those rules can be easily generated from .xml files. For efficiency and because python is not a required dependency, Makefile-man.am is only regenerated when requested with make update-man-list If no metadata in man/*.xml changed, this file should not change. So only when a new man page or a new alias is added, this file should show up in 'git diff'. The change should then be committed. If the support for building from git without python was dropped, we could drop Makefile-man.am from version control. This would also increase the partial build time (since more stuff would be rebuild whenever sources in man/*.xml would be modified), so it would probably wouldn't be worth it.
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" conditional='ENABLE_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>
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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 graphical 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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