Pavel Machek <[email protected]> writes:
> Hi!
>
>> There are two issues here.
>> 1) Monitoring. (ps, top etc)
>> 2) Control (kill).
>>
>> For monitoring you might need to patch ps/top a little but it is doable
> without
>> 2 pids.
>>
>> For kill it is extremely rude to kill processes inside of a nested pid space.
>> There are other solutions to the problem.
>
> Can you elaborate? If I have 10 containers with 1000 processes each,
> it would be nice to be able to run top then kill 40 top cpu hogs....
So I just posted my patches to lkml if you want to see the details.
But the way I have implemented it each container has a pid in it's parent's
pid namespace.
That pid to top looks essentially a thread group leader, and top will
tell you which container contains the cpu hogs.
Currently from the outside your choice is to kill or not kill the entire
container. Which let's you kill the cpu hogs. The control is not broken
down so fine that it is easy to do something the sysadmin of the container
should be doing.
Eric
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