3802a3d3d7af51ddff31943d5514382f01265770Lennart Poettering<?xml version='1.0'?> <!--*-nxml-*-->

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"

12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek<refentry id="systemd-analyze"

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek xmlns:xi="http://www.w3.org/2001/XInclude">

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refentryinfo>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <title>systemd-analyze</title>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <productname>systemd</productname>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <authorgroup>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <author>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <contrib>Developer</contrib>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <firstname>Lennart</firstname>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <surname>Poettering</surname>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <email>lennart@poettering.net</email>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </author>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <author>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <contrib>Developer</contrib>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <firstname>Harald</firstname>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <surname>Hoyer</surname>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <email>harald@redhat.com</email>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </author>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </authorgroup>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </refentryinfo>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refmeta>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refentrytitle>systemd-analyze</refentrytitle>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <manvolnum>1</manvolnum>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </refmeta>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refnamediv>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refname>systemd-analyze</refname>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refpurpose>Analyze system boot-up performance</refpurpose>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </refnamediv>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <refsynopsisdiv>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <cmdsynopsis>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <command>systemd-analyze</command>

fbce11397f4d19821a9dfe66ee3ebe11cad90057Jan Engelhardt <arg choice="opt" rep="repeat">OPTIONS</arg>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <arg>time</arg>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering </cmdsynopsis>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <cmdsynopsis>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <command>systemd-analyze</command>

847ae0ae7f29e7bfb245d692409fc2948eab7d1dLennart Poettering <arg choice="opt" rep="repeat">OPTIONS</arg>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <arg choice="plain">blame</arg>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering </cmdsynopsis>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <cmdsynopsis>

9365b048c0c9f62ef7f696216ba049e6b4c2f2e5Lennart Poettering <command>systemd-analyze</command>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="opt" rep="repeat">OPTIONS</arg>

ea021cc3ea7082786e764734bb344eebbd6f2caaLennart Poettering <arg choice="plain">critical-chain</arg>

ea021cc3ea7082786e764734bb344eebbd6f2caaLennart Poettering <arg choice="opt" rep="repeat"><replaceable>UNIT</replaceable></arg>

72f4d9669c253d5bd7c126bf2e7a0db0198cf2ebJan Engelhardt </cmdsynopsis>

ea021cc3ea7082786e764734bb344eebbd6f2caaLennart Poettering <cmdsynopsis>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <command>systemd-analyze</command>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <arg choice="opt" rep="repeat">OPTIONS</arg>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <arg choice="plain">plot</arg>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <arg choice="opt">&gt; file.svg</arg>

ea021cc3ea7082786e764734bb344eebbd6f2caaLennart Poettering </cmdsynopsis>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <cmdsynopsis>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <command>systemd-analyze</command>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="opt" rep="repeat">OPTIONS</arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="plain">dot</arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="opt" rep="repeat"><replaceable>PATTERN</replaceable></arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="opt">&gt; file.dot</arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </cmdsynopsis>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <cmdsynopsis>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <command>systemd-analyze</command>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <arg choice="opt" rep="repeat">OPTIONS</arg>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <arg choice="plain">dump</arg>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering </cmdsynopsis>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <cmdsynopsis>

c129bd5df3ca08eb352cf69d01d2f374552624aeLennart Poettering <command>systemd-analyze</command>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="opt" rep="repeat">OPTIONS</arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="plain">set-log-level</arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <arg choice="opt"><replaceable>LEVEL</replaceable></arg>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </cmdsynopsis>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek </refsynopsisdiv>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <refsect1>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <title>Description</title>

3fde5f30bda2a70d97f3dc8fa918e42e1c07cc2cLennart Poettering

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <para><command>systemd-analyze</command> may be used

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek to determine system boot-up performance statistics and

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek retrieve other state and tracing information from the

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek system and service manager.</para>

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek

d868475ad62547f0a034dfaf038aff31b3d05372Zbigniew Jędrzejewski-Szmek <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 critical-chain [<replaceable>UNIT...</replaceable>]</command>

prints a tree of the time-critical chain of units

(for each of the specified <replaceable>UNIT</replaceable>s

or for the default target otherwise).

The time after the unit is active or started is printed

after the "@" character. The time the unit takes to

start is printed after the "+" character.

Note that the output might be misleading as the

initialization of one service might depend on socket

activation and because of the parallel execution

of units.</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><command>systemd-analyze dot</command> generates

textual dependency graph description in dot format for

further processing with the GraphViz

<citerefentry><refentrytitle>dot</refentrytitle><manvolnum>1</manvolnum></citerefentry>

tool. Use a command line like <command>systemd-analyze

dot | dot -Tsvg > systemd.svg</command> to generate a

graphical dependency tree. Unless

<option>--order</option> or <option>--require</option>

is passed, the generated graph will show both ordering

and requirement dependencies. Optional pattern

globbing style specifications

(e.g. <filename>*.target</filename>) may be given at

the end. A unit dependency is included in the graph if

any of these patterns match either the origin or

destination node.</para>

<para><command>systemd-analyze dump</command> outputs

a (usually very long) human-readable serialization of

the complete server state. Its format is subject to

change without notice and should not be parsed by

applications.</para>

<para><command>systemd-analyze set-log-level

<replaceable>LEVEL</replaceable></command> changes the

current log level of the <command>systemd</command>

daemon to <replaceable>LEVEL</replaceable> (accepts

the same values as <option>--log-level=</option>

described in

<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>).</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>

<varlistentry>

<term><option>--system</option></term>

<listitem><para>Shows performance data

of the system manager. This is the

implied default.</para></listitem>

</varlistentry>

<varlistentry>

<term><option>-H</option></term>

<term><option>--host=</option></term>

<listitem><para>Execute the operation

remotely. Specify a hostname, or

username and hostname separated by

<literal>@</literal>, to connect

to. This will use SSH to talk to the

remote machine manager

instance.</para></listitem>

</varlistentry>

<varlistentry>

<term><option>-M</option></term>

<term><option>--machine=</option></term>

<listitem><para>Execute the operation on a

local container. Specify a container

name to connect to.</para></listitem>

</varlistentry>

<varlistentry>

<term><option>--order</option></term>

<term><option>--require</option></term>

<listitem><para>When used in

conjunction with the

<command>dot</command> command (see

above), selects which dependencies are

shown in the dependency graph. If

<option>--order</option> is passed,

only dependencies of type

<varname>After=</varname> or

<varname>Before=</varname> are

shown. If <option>--require</option>

is passed, only dependencies of type

<varname>Requires=</varname>,

<varname>RequiresOverridable=</varname>,

<varname>Requisite=</varname>,

<varname>RequisiteOverridable=</varname>,

<varname>Wants=</varname> and

<varname>Conflicts=</varname> are

shown. If neither is passed, this shows

dependencies of all these

types.</para></listitem>

</varlistentry>

<varlistentry>

<term><option>--from-pattern=</option></term>

<term><option>--to-pattern=</option></term>

<listitem><para>When used in

conjunction with the

<command>dot</command> command (see

above), this selects which relationships

are shown in the dependency graph.

They both require

<citerefentry><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry>

patterns as arguments, which are

matched against left-hand and

right-hand, respectively, nodes of a

relationship. Each of these can be

used more than once, which means a

unit name must match one of the given

values.</para></listitem>

</varlistentry>

<varlistentry>

<term><option>--fuzz=</option><replaceable>timespan</replaceable></term>

<listitem><para>When used in conjunction

with the <command>critical-chain</command>

command (see above), also show units, which

finished <replaceable>timespan</replaceable> earlier, than the

latest unit in the same level. The unit of

<replaceable>timespan</replaceable> is seconds

unless specified with a different unit,

e.g. "50ms".</para></listitem>

</varlistentry>

<varlistentry>

<term><option>--no-pager</option></term>

<listitem>

<para>Do not pipe output into a pager.</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>Examples</title>

<para>This plots all dependencies of any unit whose

name starts with <literal>avahi-daemon.</literal>:</para>

<programlisting>$ systemd-analyze dot 'avahi-daemon.*' | dot -Tsvg > avahi.svg

$ eog avahi.svg</programlisting>

<para>This plots the dependencies between all known target units:</para>

<programlisting>systemd-analyze dot --to-pattern='*.target' --from-pattern='*.target' | dot -Tsvg > targets.svg

$ eog targets.svg</programlisting>

</refsect1>

<xi:include href="less-variables.xml" />

<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>