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man: clarify DefaultTasksMax doc

This commit is contained in:
Pavel Sapezhko 2020-11-18 17:54:01 +03:00 committed by Zbigniew Jędrzejewski-Szmek
parent c7faa23235
commit 77f5277a7a
1 changed files with 4 additions and 2 deletions
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6
man/systemd-system.conf.xml
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@ -361,8 +361,10 @@
<listitem><para>Configure the default value for the per-unit <varname>TasksMax=</varname> setting. See
<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for details. This setting applies to all unit types that support resource control settings, with the exception
of slice units. Defaults to 15%, which equals 4915 with the kernel's defaults on the host, but might be smaller
in OS containers.</para></listitem>
of slice units. Defaults to 15% of the sysctl setting <varname>kernel.pid_max=</varname> or root cgroup <varname>pids.max</varname>.
Kernel has a default value for <varname>kernel.pid_max=</varname> and an algorithm of counting in case of more than 32 cores.
For example with the default <varname>kernel.pid_max=</varname>, <varname>DefaultTasksMax=</varname> defaults to 4915,
but might be greater in other systems or smaller in OS containers.</para></listitem>
</varlistentry>
<varlistentry>