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diff --git a/man/systemd-analyze.xml b/man/systemd-analyze.xml new file mode 100644 index 0000000000..c2ff9cc5bd --- /dev/null +++ b/man/systemd-analyze.xml @@ -0,0 +1,138 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!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 Lennart Poettering + + 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-analyze"> + + <refentryinfo> + <title>systemd-analyze</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-analyze</refentrytitle> + <manvolnum>1</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-analyze</refname> + <refpurpose>Analyze system boot-up performance</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>systemd-analyze <arg choice="opt" rep="repeat">OPTIONS</arg> time</command> + </cmdsynopsis> + <cmdsynopsis> + <command>systemd-analyze <arg choice="opt" rep="repeat">OPTIONS</arg> blame </command> + </cmdsynopsis> + <cmdsynopsis> + <command>systemd-analyze <arg choice="opt" rep="repeat">OPTIONS</arg> plot <arg choice="opt">> file.svg</arg></command> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-analyze</command> may be used + to determine system boot-up performance of the current + boot.</para> + + <para><command>systemd-analyze time</command> + prints the time spent in the kernel before + userspace has been reached, the time spent in the + initial RAM disk (initrd) before normal system + userspace has been reached and the time normal system + userspace took to initialize. Note that these + measurements simply measure the time passed up to the + point where all system services have been spawned, but + not necessarily until they fully finished + initialization or the disk is idle.</para> + + <para><command>systemd-analyze blame</command> prints + a list of all running units, ordered by the time they + took to initialize. This information may be used to + optimize boot-up times. Note that the output might be + misleading as the initialization of one service might + be slow simply because it waits for the initialization + of another service to complete.</para> + + <para><command>systemd-analyze plot</command> prints + an SVG graphic detailing which system services have + been started at what time, highlighting the time they + spent on initialization.</para> + + <para>If no command is passed <command>systemd-analyze + time</command> is implied.</para> + + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>-h</option></term> + <term><option>--help</option></term> + + <listitem><para>Prints a short help + text and exits.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--user</option></term> + + <listitem><para>Shows performance data + of user sessions instead of the system + manager.</para></listitem> + </varlistentry> + </variablelist> + + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success 0 is returned, a non-zero failure + code otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |