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man: update documentation of slice units a bit

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Lennart Poettering 2013-07-19 19:16:47 +02:00
parent 9365b048c0
commit 847ae0ae7f
3 changed files with 30 additions and 8 deletions
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2
TODO
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@ -46,7 +46,7 @@ CGroup Rework Completion:
* introduce high-level settings for RT budget, swappiness
* wiki: document new bus APIs of PID 1 (transient units, Reloading signal)
* review: slice units, systemctl commands
* review: systemctl commands
* Send SIGHUP and SIGTERM in session scopes

2
man/systemd.scope.xml
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@ -63,7 +63,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
processes on its own.</para>
<para>The main purpose of scope units is grouping worker processes
of a system service for organization and resource management.</para>
of a system service for organization and for managing resources.</para>
<para><command>systemd-run <option>--scope</option></command> may
be used to easily launch a command in a new scope unit from the

34
man/systemd.slice.xml
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@ -55,14 +55,34 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
<title>Description</title>
<para>A unit configuration file whose name ends in
<literal>.slice</literal> encodes information about a slice
created by systemd to manage resources used by a certain group of
<literal>.slice</literal> encodes information about a slice which
is a concept for hierarchially managing resources of a group of
processes. This management is performed by creating a node in the
control group tree. Those processes are part of different units,
usually <literal>.service</literal> units (see
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>).
control group tree. Units that manage processes (primarilly scope
and service units) may be assigned to a specific slice. For each
slice certain resource limits may the be set, that apply to all
processes of all units contained in that slice. Slices are
organized hierarchially in a tree. The name of the slice encodes
the location in the tree. The name consists of a "-" separated
series of names, which describes the path to the slice from the
root slice. The root slice is named,
<filename>-.slice</filename>. Example:
<filename>foo-bar.slice</filename> is a slice that is located
within <filename>foo.slice</filename>, which in turn is located in
the root slice <filename>-.slice</filename>.
</para>
<para>By default service and scope units are placed in
<filename>system.slice</filename>, virtual machines and containers
registered with
<citerefentry><refentrytitle>systemd-machined</refentrytitle><manvolnum>1</manvolnum></citerefentry>
are found in <filename>machine.slice</filename>, and user sessions
handled by
<citerefentry><refentrytitle>systemd-logind</refentrytitle><manvolnum>1</manvolnum></citerefentry>
in <filename>user.slice</filename>. See
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for more information.</para>
<para>See
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for the common options of all unit configuration
@ -92,7 +112,9 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
<citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>