Re: [PATCH] meminfo: show /proc/meminfo base on container's memcg
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(2012/05/31 6:38), David Rientjes wrote:
On Tue, 29 May 2012, Gao feng wrote:cgroup and namespaces are used for creating containers but some of information is not isolated/virtualized. This patch is for isolating /proc/meminfo information per container, which uses memory cgroup. By this, top,free and other tools under container can work as expected(show container's usage) without changes. This patch is a trial to show memcg's info in /proc/meminfo if 'current' is under a memcg other than root. we show /proc/meminfo base on container's memory cgroup. because there are lots of info can't be provide by memcg, and the cmds such as top, free just use some entries of /proc/meminfo, we replace those entries by memory cgroup. if container has no memcg, we will show host's /proc/meminfo as before. there is no idea how to deal with Buffers,I just set it zero, It's strange if Buffers bigger than MemTotal. Signed-off-by: Gao feng<gaofeng@xxxxxxxxxxxxxx>Nack, this type of thing was initially tried with cpusets when a thread was bound to a subset of nodes, i.e. only show the total amount of memory spanned by those nodes.
Hmm. How about having memory.meminfo under memory cgroup directory and use it with bind mount ? (container tools will be able to help it.) Then, container applications(top,free,etc..) can read the values they wants. If admins don't want it, they'll not use bind mount. Thanks, -Kame _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
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