diff options
Diffstat (limited to 'man/systemd.resource-control.xml')
| -rw-r--r-- | man/systemd.resource-control.xml | 65 |
1 files changed, 27 insertions, 38 deletions
diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml index 33d2f2e102..a1f63dd66b 100644 --- a/man/systemd.resource-control.xml +++ b/man/systemd.resource-control.xml @@ -115,6 +115,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. <varlistentry> <term><varname>CPUShares=<replaceable>weight</replaceable></varname></term> + <term><varname>StartupCPUShares=<replaceable>weight</replaceable></varname></term> <listitem> <para>Assign the specified CPU time share weight to the @@ -122,10 +123,17 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. the <literal>cpu.shares</literal> control group attribute, which defaults to 1024. For details about this control group attribute, see <ulink - url="https://www.kernel.org/doc/Documentation/scheduler/sched-design-CFS.txt">sched-design-CFS.txt</ulink> - The available CPU time is split up among all units within a + url="https://www.kernel.org/doc/Documentation/scheduler/sched-design-CFS.txt">sched-design-CFS.txt</ulink>. + The available CPU time is split up among all units within one slice relative to their CPU time share weight.</para> + <para>While <varname>StartupCPUShares=</varname> only + applies to the startup phase of the system, + <varname>CPUShares=</varname> applies to the later runtime + of the system, and if the former is not set also to the + startup phase. This allows priorizing specific services at + boot-up differently than during runtime.</para> + <para>Implies <literal>CPUAccounting=true</literal>.</para> </listitem> </varlistentry> @@ -171,18 +179,6 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. </varlistentry> <varlistentry> - <term><varname>StartupCPUShares=<replaceable>weight</replaceable></varname></term> - - <listitem> - <para>Similar to <varname>CPUShares=</varname>. However, - only be assigned on startup state. After finishing startup, will be - re-assigned by <varname>CPUShares=</varname>. If - <varname>CPUShares=</varname> is not specified, then it will be - assigned to default(1024).</para> - </listitem> - </varlistentry> - - <varlistentry> <term><varname>MemoryAccounting=</varname></term> <listitem> @@ -233,19 +229,24 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. <varlistentry> <term><varname>BlockIOWeight=<replaceable>weight</replaceable></varname></term> + <term><varname>StartupBlockIOWeight=<replaceable>weight</replaceable></varname></term> - <listitem><para>Set the default - overall block IO weight for the - executed processes. Takes a single - weight value (between 10 and 1000) to - set the default block IO weight. This - controls the - <literal>blkio.weight</literal> - control group attribute, which - defaults to 1000. For details about - this control group attribute, see - <ulink - url="https://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.</para> + <listitem><para>Set the default overall block IO weight for + the executed processes. Takes a single weight value (between + 10 and 1000) to set the default block IO weight. This controls + the <literal>blkio.weight</literal> control group attribute, + which defaults to 1000. For details about this control group + attribute, see <ulink + url="https://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>. + The available IO bandwidth is split up among all units within + one slice relative to their block IO weight.</para> + + <para>While <varname>StartupBlockIOWeight=</varname> only + applies to the startup phase of the system, + <varname>BlockIOWeight=</varname> applies to the later runtime + of the system, and if the former is not set also to the + startup phase. This allows priorizing specific services at + boot-up differently than during runtime.</para> <para>Implies <literal>BlockIOAccounting=true</literal>.</para> @@ -253,18 +254,6 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. </varlistentry> <varlistentry> - <term><varname>StartupBlockIOWeight=<replaceable>weight</replaceable></varname></term> - - <listitem> - <para>Similar to <varname>BlockIOWeight=</varname>. However, - only be assigned on startup state. After finishing startup, will be - re-assigned by <varname>BlockIOWeight=</varname>. If - <varname>BlockIOWeight=</varname> is not specified, then it will be - assigned to default(1000).</para> - </listitem> - </varlistentry> - - <varlistentry> <term><varname>BlockIODeviceWeight=<replaceable>device</replaceable> <replaceable>weight</replaceable></varname></term> <listitem> |