Messages in this thread | | | Date | Mon, 17 Nov 2008 09:06:29 +0800 | From | Li Zefan <> | Subject | Re: [mm] [PATCH 1/4] Memory cgroup hierarchy documentation (v4) |
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> +6.1 Enabling hierarchical accounting and reclaim > + > +The memory controller by default disables the hierarchy feature. Support > +can be enabled by writing 1 to memory.use_hierarchy file of the root cgroup > + > +# echo 1 > memory.use_hierarchy > + > +The feature can be disabled by > + > +# echo 0 > memory.use_hierarchy > + > +NOTE1: Enabling/disabling will fail if the cgroup already has other > +cgroups created below it. > +
It's better to also document that it will fail if it's parent's use_hierarchy is already enabled.
> +NOTE2: This feature can be enabled/disabled per subtree. > + > +7. TODO > > 1. Add support for accounting huge pages (as a separate controller) > 2. Make per-cgroup scanner reclaim not-shared pages first > _ >
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