mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-10-27 01:55:32 +03:00
681eb9cf2b
In particular, use /lib/systemd instead of /usr/lib/systemd in distributions like Debian which still have not adopted a /usr merge setup. Use XML entities from man/custom-entities.ent to replace configured paths while doing XSLT processing of the original XML files. There was precedent of some files (such as systemd.generator.xml) which were already using this approach. This addresses most of the (manual) fixes from this patch: http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/patches/Fix-paths-in-man-pages.patch?h=experimental-220 The idea of using generic XML entities was presented here: http://lists.freedesktop.org/archives/systemd-devel/2015-May/032240.html This patch solves almost all the issues, with the exception of: - Path to /bin/mount and /bin/umount. - Generic statements about preference of /lib over /etc. These will be handled separately by follow up patches. Tested: - With default configure settings, ran "make install" to two separate directories and compared the output to confirm they matched exactly. - Used a set of configure flags including $CONFFLAGS from Debian: http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/rules Installed the tree and confirmed the paths use /lib/systemd instead of /usr/lib/systemd and that no other unexpected differences exist. - Confirmed that `make distcheck` still passes.
257 lines
8.0 KiB
XML
257 lines
8.0 KiB
XML
<?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" [
|
|
<!ENTITY % entities SYSTEM "custom-entities.ent" >
|
|
%entities;
|
|
]>
|
|
|
|
<!--
|
|
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-cgtop"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<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</command>
|
|
<arg choice="opt" rep="repeat">OPTIONS</arg>
|
|
</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, or disk I/O load. The display is refreshed in
|
|
regular intervals (by default every 1s), similar in style to
|
|
<citerefentry project='man-pages'><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 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
|
|
<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>
|
|
|
|
<refsect1>
|
|
<title>Options</title>
|
|
|
|
<para>The following options are understood:</para>
|
|
|
|
<variablelist>
|
|
<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>-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>
|
|
|
|
<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
|
|
3.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<xi:include href="standard-options.xml" xpointer="help" />
|
|
<xi:include href="standard-options.xml" xpointer="version" />
|
|
</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>Sort the control groups by path, number of
|
|
tasks, CPU load, 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>
|
|
|
|
<listitem><para>Increase or decrease refresh delay,
|
|
respectively.</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>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry project='man-pages'><refentrytitle>top</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|