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SubjectRe: [PATCH 4/4] memcg: Document memory.low_limit_in_bytes
On Mon, Apr 28, 2014 at 02:26:45PM +0200, Michal Hocko wrote:
> Describe low_limit_in_bytes and its effect.
>
> Signed-off-by: Michal Hocko <mhocko@suse.cz>
> ---
> Documentation/cgroups/memory.txt | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
> index add1be001416..a52913fe96fb 100644
> --- a/Documentation/cgroups/memory.txt
> +++ b/Documentation/cgroups/memory.txt
> @@ -57,6 +57,7 @@ Brief summary of control files.
> memory.memsw.usage_in_bytes # show current res_counter usage for memory+Swap
> (See 5.5 for details)
> memory.limit_in_bytes # set/show limit of memory usage
> + memory.low_limit_in_bytes # set/show low limit for memory reclaim
> memory.memsw.limit_in_bytes # set/show limit of memory+Swap usage
> memory.failcnt # show the number of memory usage hits limits
> memory.memsw.failcnt # show the number of memory+Swap hits limits
> @@ -249,6 +250,14 @@ is the objective of the reclaim. The global reclaim aims at balancing
> zones' watermarks while the limit reclaim frees some memory to allow new
> charges.
>
> +Groups might be also protected from both global and limit reclaim by
> +low_limit_in_bytes knob. If the limit is non-zero the reclaim logic
> +doesn't include groups (and their subgroups - see 6. Hierarchy support)
> +which are bellow the low limit if there is other eligible cgroup in the

'below' :-) Although I really like that spello.


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