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authorLennart Poettering <lennart@poettering.net>2014-05-22 11:53:12 +0900
committerLennart Poettering <lennart@poettering.net>2014-05-22 11:53:12 +0900
commit9a0549093332880df47c4218209ce126b8586835 (patch)
tree3f929d8ef12b580f5c6ed91b7316bbbac4d4a299 /man/systemd.resource-control.xml
parent609e002e78e79ef2bf9d6a6ea22bda215abbbb14 (diff)
cgroups: simplify CPUQuota= logic
Only accept cpu quota values in percentages, get rid of period definition. It's not clear whether the CFS period controllable per-cgroup even has a future in the kernel, hence let's simplify all this, hardcode the period to 100ms and only accept percentage based quota values.
Diffstat (limited to 'man/systemd.resource-control.xml')
-rw-r--r--man/systemd.resource-control.xml27
1 files changed, 5 insertions, 22 deletions
diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml
index a1f63dd66b..e0e49db7d1 100644
--- a/man/systemd.resource-control.xml
+++ b/man/systemd.resource-control.xml
@@ -143,14 +143,11 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
<listitem>
<para>Assign the specified CPU time quota to the processes
- executed. Takes a percentage value (suffixed with "%") or an
- absolute time (suffixed by one of the common time units, us,
- ms, s, ...). The percentage specifies how much CPU time the
- unit shall get at maximum, relative to the total CPU time
- available on one CPU. Use values &gt; 100% for alloting CPU
- time on more than one CPU. If an absolute time is specified
- the processes of this unit will get this much absolute time
- within each quota period, at maximum. This controls the
+ executed. Takes a percentage value, suffixed with "%". The
+ percentage specifies how much CPU time the unit shall get at
+ maximum, relative to the total CPU time available on one
+ CPU. Use values &gt; 100% for alloting CPU time on more than
+ one CPU. This controls the
<literal>cpu.cfs_quota_us</literal> control group
attribute. For details about this control group attribute,
see <ulink
@@ -165,20 +162,6 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
</varlistentry>
<varlistentry>
- <term><varname>CPUQuotaPeriodSec=</varname></term>
-
- <listitem>
- <para>Specify the CPU quota period to use. Defaults to
- 100ms. This controls the <literal>cpu.cfs_period_us</literal>
- control group attribute. 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>.</para>
-
- <para>Implies <literal>CPUAccounting=true</literal>.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
<term><varname>MemoryAccounting=</varname></term>
<listitem>