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bus: send status message from proxyd to systemd about client we are working for
[elogind.git] / man / systemd-cgtop.xml
diff --git a/man/systemd-cgtop.xml b/man/systemd-cgtop.xml
index 9322fb0920cbddb7777480256c314d2a561f5a38..01a0ae216343a9f2b8c39261ae40b94a344bbece 100644 (file)
--- a/man/systemd-cgtop.xml
+++ b/man/systemd-cgtop.xml
@@ -49,7 +49,8 @@
 
         <refsynopsisdiv>
                 <cmdsynopsis>
 
         <refsynopsisdiv>
                 <cmdsynopsis>
-                        <command>systemd-cgtop <arg choice="opt" rep="repeat">OPTIONS</arg></command>
+                        <command>systemd-cgtop</command>
+                        <arg choice="opt" rep="repeat">OPTIONS</arg>
                 </cmdsynopsis>
         </refsynopsisdiv>
 
                 </cmdsynopsis>
         </refsynopsisdiv>
 
@@ -58,40 +59,37 @@
 
                 <para><command>systemd-cgtop</command> shows the top
                 control groups of the local Linux control group
 
                 <para><command>systemd-cgtop</command> shows the top
                 control groups of the local Linux control group
-                hierarchy, ordered by their CPU, memory and disk I/O load. The
+                hierarchy, ordered by their CPU, memory, or disk I/O load. The
                 display is refreshed in regular intervals (by default
                 every 1s), similar in style to
                 display is refreshed in regular intervals (by default
                 every 1s), similar in style to
-                <citerefentry><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
+                <citerefentry><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
+                If <command>systemd-cgtop</command> is not connected
+                to a tty, only one iteration is performed and no
+                columns headers are printed. This mode is suitable for
+                scripting.</para>
 
                 <para>Resource usage is only accounted for control
                 groups in the relevant hierarchy, i.e. CPU usage is
                 only accounted for control groups in the
                 <literal>cpuacct</literal> hierarchy, memory usage
                 only for those in <literal>memory</literal> and disk
 
                 <para>Resource usage is only accounted for control
                 groups in the relevant hierarchy, i.e. CPU usage is
                 only accounted for control groups in the
                 <literal>cpuacct</literal> hierarchy, memory usage
                 only for those in <literal>memory</literal> and disk
-                I/O usage for those in
-                <literal>blkio</literal>. <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
-                by default places all services in their own control
-                group in the <literal>cpuacct</literal> hierarchy, but
-                not in <literal>memory</literal> nor
-                <literal>blkio</literal>. If resource monitoring for
-                these resources is required it is recommended to add
-                <literal>blkio</literal> and <literal>memory</literal>
-                to the <varname>DefaultControllers=</varname> setting
-                in <filename>/etc/systemd/system.conf</filename> (see
-                <citerefentry><refentrytitle>systemd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                for details). Alternatively, it is possible to enable
-                resource accounting individually for services, by
-                making use of the <varname>ControlGroup=</varname>
-                option in the unit files (See
-                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                for details).</para>
+                I/O usage for those in <literal>blkio</literal>. If
+                resource monitoring for these resources is required,
+                it is recommended to add the
+                <varname>CPUAccounting=1</varname>,
+                <varname>MemoryAccounting=1</varname> and
+                <varname>BlockIOAccounting=1</varname> settings in the
+                unit files in question. See
+                <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                for details.</para>
 
                 <para>To emphasize this: unless
 
                 <para>To emphasize this: unless
-                <literal>blkio</literal> and <literal>memory</literal>
-                are enabled for the services in question with either
-                of the options suggested above no resource accounting
-                will be available for system services and the data shown
-                by <command>systemd-cgtop</command> will be
+                <literal>CPUAccounting=1</literal>,
+                <literal>MemoryAccounting=1</literal> and
+                <literal>BlockIOAccounting=1</literal> are enabled for
+                the services in question, no resource accounting will
+                be available for system services and the data shown by
+                <command>systemd-cgtop</command> will be
                 incomplete.</para>
         </refsect1>
 
                 incomplete.</para>
         </refsect1>
 
@@ -109,6 +107,13 @@
                                 text and exits.</para></listitem>
                         </varlistentry>
 
                                 text and exits.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><option>--version</option></term>
+
+                                <listitem><para>Prints a version string and
+                                exits.</para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><option>-p</option></term>
 
                         <varlistentry>
                                 <term><option>-p</option></term>
 
@@ -142,6 +147,29 @@
                                 <listitem><para>Order by disk I/O load.</para></listitem>
                         </varlistentry>
 
                                 <listitem><para>Order by disk I/O load.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><option>-b</option></term>
+                                <term><option>--batch</option></term>
+
+                                <listitem><para>Run in "batch" mode:
+                                do not accept input and run until the
+                                iteration limit set with
+                                <option>--iterations</option> is
+                                exhausted or until killed. This mode
+                                could be useful for sending output
+                                from <command>systemd-cgtop</command>
+                                to other programs or to a
+                                file.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>-n</option></term>
+                                <term><option>--iterations=</option></term>
+
+                                <listitem><para>Perform only this many
+                                iterations.</para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><option>-d</option></term>
                                 <term><option>--delay=</option></term>
                         <varlistentry>
                                 <term><option>-d</option></term>
                                 <term><option>--delay=</option></term>
@@ -162,11 +190,11 @@
                                 tree traversal depth. Specifies how
                                 deep <command>systemd-cgtop</command>
                                 shall traverse the control group
                                 tree traversal depth. Specifies how
                                 deep <command>systemd-cgtop</command>
                                 shall traverse the control group
-                                hierarchies. If 0 is specified only
-                                the root group is monitored, for 1
+                                hierarchies. If 0 is specified, only
+                                the root group is monitored. For 1,
                                 only the first level of control groups
                                 is monitored, and so on. Defaults to
                                 only the first level of control groups
                                 is monitored, and so on. Defaults to
-                                2.</para></listitem>
+                                3.</para></listitem>
                         </varlistentry>
 
                 </variablelist>
                         </varlistentry>
 
                 </variablelist>
@@ -208,19 +236,26 @@
                                 <term>m</term>
                                 <term>i</term>
 
                                 <term>m</term>
                                 <term>i</term>
 
-                                <listitem><para>Change ordering of control groups
+                                <listitem><para>Sort the control groups
                                 by path, number of tasks, CPU load,
                                 by path, number of tasks, CPU load,
-                                memory usage resp. IO
-                                load.</para></listitem>
+                                memory usage, or IO
+                                load, respectively.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term>%</term>
+
+                                <listitem><para>Toggle between showing CPU time as
+                                time or percentage.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                                 <term>+</term>
                                 <term>-</term>
 
                         </varlistentry>
 
                         <varlistentry>
                                 <term>+</term>
                                 <term>-</term>
 
-                                <listitem><para>Increase,
-                                resp. decrease refresh
-                                delay.</para></listitem>
+                                <listitem><para>Increase
+                                or decrease refresh
+                                delay, respectively.</para></listitem>
                         </varlistentry>
 
                 </variablelist>
                         </varlistentry>
 
                 </variablelist>
@@ -239,6 +274,7 @@
                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd-cgls</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd-cgls</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 </para>
         </refsect1>
                         <citerefentry><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 </para>
         </refsect1>
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