[Lxc-users] not separeted resources

[Nirmal Guhan]

On Mon, Jul 12, 2010 at 5:01 AM, atp <Andrew.Phillips at lmax.com> wrote:
> Hi,
>
>> I'm wondering on some problems, come up in the near past using LXC. All
>> of our systems are Ubuntu 10.04 (2.6.32-server) with lxc 0.7.1.
>>
>> 1. Why does the container see the host's dmesg? Why does it don't have
>> own one?
>
>  Because the work to create per namespace kernel ring buffers has not
> been done. Its not clear whether a new namespace is the best approach.
>
>>
>> 2. Why does the container see the host's /proc/partitions? Munin's
>> diskstats plugin show all the partitions of the host.
>
>   /proc has not been made fully container aware. An attempt to do this
> using a FUSE file system was made, but was discontinued once the
> technical problems with this approach became obvious.
>
>   At the moment process ID files in /proc/ are namespace aware. The
> remaining files are not.
>
>>
>> 3. Why does host's apparmor (and probably selinux) have influence to the
>> containers process-es?
>>
>
>   Its the same kernel image that runs both the host and the
> containers.
>
>> 4. Why does container see the host's memory and swap usage? Is there any
>> tool to check only the container related informations? Is there any tool
>> like 'xm top' (top like tool to show VM's related statistics)?
>>
>
>   Same answer as 2).
>
>   Per container/per cgroup resource tracking has not been implemented.

I think only the *tracking* has not been implemented. It would still
be possible to configure resources per container using cgroup (cpuset,
memory etc.) Please confirm.

>
>>
>> Probably there will be more, right now this is in my mind:)
>
>   HTH.
>
>        Andy
>
>>
>> Thank you,
>>
>> tamas
>>
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