man: improve readability of "_TRANSPORT=" section in systemd.journal-fields(7)

[elogind.git] / man / systemd-analyze.xml

diff --git a/man/systemd-analyze.xml b/man/systemd-analyze.xml
index 9f313d76f111a956e574ad7d8f80e63a4379ed19..ae45bfcf3150bf13d9cd9ddbd16173b4621187b3 100644 (file)
--- a/man/systemd-analyze.xml
+++ b/man/systemd-analyze.xml
@@ -34,6 +34,12 @@
                                 <surname>Poettering</surname>
                                 <email>lennart@poettering.net</email>
                         </author>
+                        <author>
+                                <contrib>Developer</contrib>
+                                <firstname>Harald</firstname>
+                                <surname>Hoyer</surname>
+                                <email>harald@redhat.com</email>
+                        </author>
                 </authorgroup>
         </refentryinfo>
 
@@ -54,6 +60,9 @@
                 <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> critical-chain </command>
+                </cmdsynopsis>
                 <cmdsynopsis>
                         <command>systemd-analyze <arg choice="opt" rep="repeat">OPTIONS</arg> plot <arg choice="opt">&gt; file.svg</arg></command>
                 </cmdsynopsis>
@@ -88,6 +97,16 @@
                 be slow simply because it waits for the initialization
                 of another service to complete.</para>
 
+                <para><command>systemd-analyze critical-chain</command>
+                prints a tree of the time critical chain of units.
+                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
@@ -181,6 +200,19 @@
                                 unit name must match one of 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,
+                                i.e. "50ms".</para></listitem>
+                        </varlistentry>
                 </variablelist>
 
         </refsect1>