mirror of
https://github.com/AuxXxilium/eudev.git
synced 2024-11-23 23:10:57 +07:00
man: document systemd-cgtop tool
This commit is contained in:
Lennart Poettering
parent
be70cdd67a
commit
caa9488700
@ -653,6 +653,7 @@ MANPAGES = \
|
|||||||
man/systemctl.1 \
|
man/systemctl.1 \
|
||||||
man/systemadm.1 \
|
man/systemadm.1 \
|
||||||
man/systemd-cgls.1 \
|
man/systemd-cgls.1 \
|
||||||
|
man/systemd-cgtop.1 \
|
||||||
man/systemd-nspawn.1 \
|
man/systemd-nspawn.1 \
|
||||||
man/systemd-tmpfiles.8 \
|
man/systemd-tmpfiles.8 \
|
||||||
man/systemd-notify.1 \
|
man/systemd-notify.1 \
|
||||||
|
|||||||
@ -78,6 +78,7 @@
|
|||||||
|
|
||||||
<variablelist>
|
<variablelist>
|
||||||
<varlistentry>
|
<varlistentry>
|
||||||
|
<term><option>-h</option></term>
|
||||||
<term><option>--help</option></term>
|
<term><option>--help</option></term>
|
||||||
|
|
||||||
<listitem><para>Prints a short help
|
<listitem><para>Prints a short help
|
||||||
@ -94,7 +95,7 @@
|
|||||||
<varlistentry>
|
<varlistentry>
|
||||||
<term><option>-k</option></term>
|
<term><option>-k</option></term>
|
||||||
|
|
||||||
<listitem><para>Includes kernel
|
<listitem><para>Include kernel
|
||||||
threads in output.</para></listitem>
|
threads in output.</para></listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
||||||
@ -113,7 +114,9 @@
|
|||||||
<title>See Also</title>
|
<title>See Also</title>
|
||||||
<para>
|
<para>
|
||||||
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
|
<citerefentry><refentrytitle>systemd-cgtop</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
|
<citerefentry><refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
||||||
</para>
|
</para>
|
||||||
</refsect1>
|
</refsect1>
|
||||||
|
|
||||||
|
|||||||
246
man/systemd-cgtop.xml
Normal file
246
man/systemd-cgtop.xml
Normal file
@ -0,0 +1,246 @@
|
|||||||
|
<?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 General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 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
|
||||||
|
General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
-->
|
||||||
|
|
||||||
|
<refentry id="systemd-cgtop">
|
||||||
|
|
||||||
|
<refentryinfo>
|
||||||
|
<title>systemd-cgtop</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-cgtop</refentrytitle>
|
||||||
|
<manvolnum>1</manvolnum>
|
||||||
|
</refmeta>
|
||||||
|
|
||||||
|
<refnamediv>
|
||||||
|
<refname>systemd-cgtop</refname>
|
||||||
|
<refpurpose>Show top control groups by their resource usage</refpurpose>
|
||||||
|
</refnamediv>
|
||||||
|
|
||||||
|
<refsynopsisdiv>
|
||||||
|
<cmdsynopsis>
|
||||||
|
<command>systemd-cgtop <arg choice="opt" rep="repeat">OPTIONS</arg></command>
|
||||||
|
</cmdsynopsis>
|
||||||
|
</refsynopsisdiv>
|
||||||
|
|
||||||
|
<refsect1>
|
||||||
|
<title>Description</title>
|
||||||
|
|
||||||
|
<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
|
||||||
|
display is refreshed in regular intervals (by default
|
||||||
|
every 1s), similar in style to
|
||||||
|
<citerefentry><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</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
|
||||||
|
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>
|
||||||
|
|
||||||
|
<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
|
||||||
|
incomplete.</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>-p</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Order by control group
|
||||||
|
path name.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term><option>-t</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Order by number of
|
||||||
|
tasks in control
|
||||||
|
group (i.e. threads and processes).</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term><option>-c</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Order by CPU load.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term><option>-m</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Order by memory usage.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term><option>-i</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Order by disk I/O load.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term><option>-d</option></term>
|
||||||
|
<term><option>--delay=</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Specify refresh delay
|
||||||
|
in seconds (or if one of
|
||||||
|
<literal>ms</literal>,
|
||||||
|
<literal>us</literal>,
|
||||||
|
<literal>min</literal> is specified as
|
||||||
|
unit in this time
|
||||||
|
unit).</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term><option>--depth=</option></term>
|
||||||
|
|
||||||
|
<listitem><para>Maximum 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
|
||||||
|
only the first level of control groups
|
||||||
|
is monitored, and so on. Defaults to
|
||||||
|
2.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
</variablelist>
|
||||||
|
|
||||||
|
</refsect1>
|
||||||
|
|
||||||
|
|
||||||
|
<refsect1>
|
||||||
|
<title>Keys</title>
|
||||||
|
|
||||||
|
<para><command>systemd-cgtop</command> is an
|
||||||
|
interactive tool and may be controlled via user input
|
||||||
|
using the following keys:</para>
|
||||||
|
|
||||||
|
<variablelist>
|
||||||
|
<varlistentry>
|
||||||
|
<term>h</term>
|
||||||
|
|
||||||
|
<listitem><para>Shows a short help text.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term>SPACE</term>
|
||||||
|
|
||||||
|
<listitem><para>Immediately refresh output.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term>q</term>
|
||||||
|
|
||||||
|
<listitem><para>Terminate the program.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term>p</term>
|
||||||
|
<term>t</term>
|
||||||
|
<term>c</term>
|
||||||
|
<term>m</term>
|
||||||
|
<term>i</term>
|
||||||
|
|
||||||
|
<listitem><para>Change ordering of control groups
|
||||||
|
by path, number of tasks, CPU load,
|
||||||
|
memory usage resp. IO
|
||||||
|
load.</para></listitem>
|
||||||
|
</varlistentry>
|
||||||
|
|
||||||
|
<varlistentry>
|
||||||
|
<term>+</term>
|
||||||
|
<term>-</term>
|
||||||
|
|
||||||
|
<listitem><para>Increase,
|
||||||
|
resp. decrease refresh
|
||||||
|
delay.</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>,
|
||||||
|
<citerefentry><refentrytitle>systemd-cgls</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
|
<citerefentry><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
||||||
|
</para>
|
||||||
|
</refsect1>
|
||||||
|
|
||||||
|
</refentry>
|
||||||
@ -499,7 +499,7 @@ static void help(void) {
|
|||||||
" -m Order by memory load\n"
|
" -m Order by memory load\n"
|
||||||
" -i Order by IO load\n"
|
" -i Order by IO load\n"
|
||||||
" -d --delay=DELAY Specify delay\n"
|
" -d --delay=DELAY Specify delay\n"
|
||||||
" --depth=DEPTH Maximum traversal depth\n",
|
" --depth=DEPTH Maximum traversal depth (default: 2)\n",
|
||||||
program_invocation_short_name);
|
program_invocation_short_name);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user